Air Cooled Single Screw Chiller/ Heat Pump

Air Cooled Single Screw Chiller/Heat Pump

Technical Manual

Models: UAA050.1-380.2F UAY050.1-380.2FCooling Capacity: 161kW-1370kWHeating Capacity: 179kw-1439kwRefrigerant: R22/R407C

UAY - F - 2014

Note: Installation and maintenance are to be performed only by qualified personnel who are familiar with local codes and regulations, and experienced with this type of equipment.

Caution: Sharp edges and coil surfaces are a potential injury hazard. Avoid contact with them.

Warning: Moving machinery and electrical power hazard. May cause severe personal injury or death. Disconnect and lock off power before servicing equipment.

Literature No.: ED-UAY(F)-1401A Supersedes: ED-UAY(F)-1301A Part No.: M08039110001

Contents1. Features............................................................................................................................ 2

2. Nomenclature................................................................................................................... 6

3. Specifications .................................................................................................................. 7

4. Accessories ................................................................................................................... 23

5. Dimensions .................................................................................................................... 24

6. Capacity Tables ............................................................................................................. 28

7. Pressure Drop Through Evaporator ............................................................................ 36

8. Operation Limits ............................................................................................................ 37

9. Sound Level ................................................................................................................... 39

10. Electric Characteristics............................................................................................... 41

11. Foundation ................................................................................................................... 42

12. Location of Water Circulating Pump ......................................................................... 48

13. Lifting ............................................................................................................................ 49

14. Installation.................................................................................................................... 51

15. Safty Devices Setting .................................................................................................. 56

16. Trouble and Action ...................................................................................................... 59

17. Guide Specifications ................................................................................................... 60

Air Cooled Single Screw Chiller

2

1.1 Features

Easy to install and simple to maintain

Exact control and reliable operation

The air cooled chiller is a central air conditioning unit, using air as cooling heat source and water as cooling supply medium, which can meet the air conditioning requirement of buildings around the year. The unit can be mounted outside, therefore, no need for equipment room, cooling tower and related water piping system. The entire chiller is complete with simple structure and easy application. Our chiller can be applied in different application, such as department stores, hospitals, restaurants, factories, office building and so on.

High resistance against corrosion

The cabinet is coated to provide a high resistance. The unit can be applied under different environment conditions. The rejected heat from exchanger doesn’t bring any pollution and meets the ecology requirement.

Stepless modulation high efficiency and saving energy

As the compact structure, the unit basement bears the loads of compressor, condenser, evaporator, oil separator and the weight of all related refrigerant piping. As our standard features, units are equipped with spring absorber. No vibration is expected from our unique type of F4 single screw compressor.The condenser fan is compete with high efficiency propeller fan, direct drive with low noise.The compressor sound insulation enclosure is provided as standard to decrease the compressor’s operation noise effectively.

DAIKIN’s unique newest single screw compressor brings high EER. Multiple circuits design, each unit is configured with one or two compressors and each compressor is configured with an independent refrigerant system, which can meet the load requirements. The cooling capacity can be steles ranging from 12.5% to 100% by micro-processor control.

Once power supplies, water piping and water pump provided, no further equipment are needed. The chiller is fully equipped with the necessary electrical components.Our controller monitor the unit operation permanently. In case abnormity happens, the system can perform audio-video alarm and display the fault’s cause to ease the maintenance.

With most advanced electric expansion valve, the unit can control the refrigerant flow as various conditions.Chilled water leaving temperature is controlled to ±0.2 . In addition, various sensors can transmit the signals and data to the controller, so the unit components are timely checked in order to keep reliable unit operation. Multiple protections ensure the safety operation of the unit.Three-level password protection prevents non-professional personnel from errors and ensures a safety operation.The compressor start one by one, so the electric current is low to reduce the impact to electric network.

Low noise and low vibration

1. Features1.1 Features


3

1.2 Intelligent Network Controller

Main functions

Main components (Inner controller)

1. Main controller MicroTech Control type: PLC programming Software class: Class A Effective memory: Flash is 2+2MB, and static is 512KB Working condition: Temperature is between -25°C to 70°C, and relative humidity is ≤ 90%2. PGD (Display) Language: Chinese or English Interface display: Large LCD, 4-line English or 2-line Chinese Working condition: Temperature is between -20°C to 60°C, and relative humidity is ≤ 92%3. IO Expansion board No programming, Set the special address is available.4. EVD200 No programming, Set the special address is available.

Building Management system control (optional)

Modbus/LonWorks/BACnet protocol interfaces are available to meet centralized and building auto control.

The controller integrates the experience and technology, applying DAIKIN air cooled heat pump since last 30 years. It is equipped with forecast logical programming software to perform the best combination of compressor and fan at higher EER. The controller can check the parameters and settings and then act accordingly to improve the energy efficiency and maximum reliability.

Multi protection,ensure unit high efficient and stable running. Unit cooling load auto adjusted based on evaporator outlet water temperature. Outlet water temperature controlled by PID, precision ±0.2°C.Compressor On/Off controlled according to average wear.Both Chinese and English are available.Unit operation status/temperature/pressure data etc dispaly.Fault alarm and fault history display.Three-level password protection.Auto re-start after power failure (option).Timing switch on/off function (option).Building management system control (option), Modbus, LonWorks, BACnet are available.

1.2 Intelligent Network Controller


4

1.3 Single Screw CompressorWith leading technology, DAIKIN’s semi-hermetic single screw compressor has such features as high-efficiency, saving energy, stability, quietness, few operation components and long durability.

Few operation components

Easy to maintain

Bearing durability

Low noise and low vibration

The single screw compressor, with excellent unique design and special gate-rotor material, and no need for metal hermetic requirement between the gate-rotor and rotors, reaches “zero-interval”. The liquid refrigerant brings more effects as hermetic, lubricant and cooling material when the compressor rotors operate. What’s more, its interval of the teeth is very little and the resistance is very low, which can improve the unit’s efficiency.

High-efficiency oil separator

Axial force balance

Radial force balance

The single screw compressor is equipped with only five moving components: a screw, two gate rotors and two loading slide valve. The screw rotor outside is special treated, and the gate rotor is equipped with eleven-tooth high strength compound material.

Liquid durability and high reliability

With an equalizing compression, the single screw reduces the bearing load extending the bearing life span. The gate rotor, which is made of high flexibility synthetic material, can keep exact and minimum clearance to ensure no friction can happen, which can improve unit’s efficiency.The oil ejection and liquid ejection design to the compressor avoid the overheat gas decrease to a minimum, eliminating to decompose the oil and refrigerant, keeping the good properties of the oil and refrigerant.

The gate rotor is accessible through a removing cover plate, making an easy maintenance.

The bearing durability of the single screw compressor is up to 5 times or more, compared to twin-screw compressor.

The single screw compressor performs a complete balance load in operation, so its vibration is near to zero and its noise level reaches the minimum of the industry standard.It does not contact metal to metal in compression, which eliminates high frequency noise.Special design discharge chamber eliminates discharge noise.

Rate rotor and rotors

The system is equipped with a high efficiency oil separator up to 99.7% efficiency. This improved the reliability and one more improvement to compression operation.

With opposing and equal suction pressure at both ends of the single screw compressor chambers, there’s no high thrust load as in the twin-screw design compressor.

Gate rotor on both sides of the screw chamber compressing simultaneously completely balanced radial loading on the rotating screw, thus eliminates bearing wear. This is a sharp contrast with twin-screw designs whose bearing size is limited, due to higher loads, screw friction and unbalance load

1.3 Single Screw Compressor


5

Features EDM51-701

4 UWA60AYM~520AYM / UWAP60BYM~480BYM

Compression principles

SuctionGas flows through the suction port into open ends of available grooves. As the screw rotates, gate-rotor teeth enter the seal grooves in sequence, refrigerant gas in chambers defined by three sides of the grooves, the compressor casing and the gate-rotor tooth surface.

CompressionVolume in each tooth chamber decreases as the screw rotates. Gas is continuously compressed until the groove leading edge passes the discharge port.

DischargeRelease of gas into the discharge chamber ends the compression cycle. Gas continues to be discharged until the gate-rotor reduces groove volume to zero. With two gate-rotors equalized on opposite sides of the screw, this process occurs twice with each screw revolution, doubling the compressor capacity of the unit.

Axial force balanceWith opposing and equal suction pressure at both ends of the screw member, the huge thrust loads of twinscrew compressor design are eliminated.

Radial force balanceGate rotors on both sides of the screw member compressing simultaneously completely balanced radial loading on the rotating screw, nearly eliminates bearing wear. This is a sharp contrast with twin-screw designs whose bearing size is limited and higher loads directly impact bearing life.

Twin-screw is with unbalance loadingWithout balance compression, the twin-screw increases axial loads and radial loads, and it increases abrasion, which affects the bearing life.

Axial force balance Radial force balance

Balanced stress with the single screw Unbalanced stress with the dual screws


6

UAA 235. 2 F ST 4 - F DA E

2.1 Nomenclature (R22, R407C)

2. Nomenclature

Export

Product Specifications

Power Supply

Refrigerant Type: 2---R22 4---R407C

Unit Type: ST: standardLN: low noise

Compressor Series

Compressor Qty.

Cooling Capacity: 235 USRT

DAIKIN Single Screw Chiller


7

UAY/UAA 50.1 60.1 70.1 80.1 100.1

∗1 Normal Cooling Capacity

kW 170 205 240 280 360USRT 48 58 68 80 102kcal/h 146,200 176,300 206,400 240,800 309,600Btu/h 580,400 699,900 819,400 955,900 1,229,000

∗2 Normal Heating CapacitykW 179 215 252 294 378

×104 kcal/h 153,900 184,900 216,700 252,800 325,000 ×104 Btu/h 610,900 733,800 860,000 1,003,000 1,290,000

Capacity Steps 25 ~ 100%Power Supply 380-400V/3~/50Hz

Compressor

Type Semi-hermetic Single-screwNo. × Model 1×3118 1×3120 1×3121 1×3122 1×3220Motor Input kW 53 66 75 89 102Motor Power Input* Heating kW 56 70 79 94 106

Refrigerant Oil Model LPT68Charge L 13 13 13 13 18

EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 487 588 688 803 1032Pressure Drop kPa 18 24 18 28 31

Condenser

Type Cross Fin And TubeRows × Stages 3×44 3×44 3×44 3×44 3×44FPI 14Face Area m2 9.57 9.57 12.07 12.07 16.09

Fan

Type Propeller (Direct Drive)Qty. 4 4 6 6 8

Air Flow Rate m3/min. 1,467 1,467 2,200 2,200 2,933cfm 51,773 51,773 77,660 77,660 103,547

Motor Input kW 8 8 12 12 16

RefrigerantType R22No. of Circuits 1 1 1 1 1Control Electronic Expansion Valve

Water Piping Connection inch 5

Compressor Acoustic Insulation Material — Polyurethane Foaming

Unit Input kW 61 74 87 101 118

Unit Dimensions

L mm 2980 3210 4110W mm 2260H mm 2290

Weight

UAA Shipping Weight kg 2370 2380 2890 2900 3560UAA Operation Weight kg 2520 2530 3090 3100 3740UAY Shipping Weight kg 2420 2460 2930 2950 3620UAY Operation Weight kg 2570 2610 3130 3150 3800

Standard Accessories Unit Operation Instructions, Conformity Certificate, Warranty Application Form, Spring Damper, Water Flow Switch.

Notes: ∗1. Cooling capacity is based on the following conditions: Entering chilled water temp. 12°C, Leaving chilled water temp. 7°C, ambient temp. 35°C DB*2. Heating capacity is based on the following conditions: Entering chilled water temp. 40°C, Leaving chilled water temp. 45°C, ambient temp. 7°C DB 3. The following safety devices and measures are taken as standard:

� High pressure (pressure switch) � Low pressure (pressure sensor) � Compressor thermal � Condensation fan thermal � High compressor discharge temperature sensor � Phase monitor � Star/Delta transition failed � Low-pressure ratio � High oil pressure drop � Low oil pressure � Freeze protection � Load stepless adjust � Trouble record

Conversion Formulaekcal/h=kW×860Btu/h=kW×3414

cfm=m³/min×35.3

3. Specifications3.1 UAY/UAA 050.1 FST ~ UAY/UAA 380.2 FST [R22 ]


8

UAY/UAA 120.1 135.1 150.1 170.1 185.1


kW 422 455 525 625 654USRT 120 129 149 178 186kcal/h 362,900 391,300 451,500 537,500 562,400Btu/h 1,440,700 1,553,400 1,792,400 2,133,800 2,232,800


×104 kcal/h 380,900 410,984 473,750 564,029 590,700 ×104 Btu/h 1,512,000 1,631,000 1,881,000 2,239,000 2,345,000


Compressor


RefrigerantOil

Model LPT68Charge L 18 16 16 16 16


Condenser


Fan

Type Propeller (Direct Drive)No. 8 8 10 10 12

Air Flow Rate m3/min. 2,933 2,933 3,667 3,667 4,400cfm 103,547 103,547 129,433 129,433 155,320

Motor Input kW 16 16 20 20 24


Water Piping Connection inch 8Compressor Acoustic Insulation Material Polyurethane FoamingUnit Input kW 136 142 169 202 194

Unit Dimensions

L mm 4110 5050 5950W mm 2260H mm 2290 2310

Weight






cfm=m³/min×35.3


9

UAY/UAA 200.2 220.2 235.2 260.2 285.2




×104 kcal/h 650,000 705,900 758,000 858,000 902,800 ×104 Btu/h 2,580,000 2,802,000 3,010,000 3,406,000 3,584,000

Capacity Steps 12.5 ~ 100%Power Supply 380-400V/3~/50Hz

Compressor

Type Semi-hermetic Single-screw

No. × Model 2×3220 1×3220 1×3221 2×3221 2×4221 1×4221

1×4222Motor Input kW 204 222 239 256 279Motor Power Input* Heating kW 214 233 251 268 293

RefrigerantOil

Model LPT68Charge L 18×2 18×2 18×2 16×2 16×2


Condenser


Fan


Air Flow Ratem3/min. 5,133 5,500 5,867 5,867 6,233

cfm 181,207 194,150 207,093 207,093 220,037Motor Input kW 28 30 32 32 34



Unit Dimensions

L mm 7340 8240 9140W mm 2260H mm 2330

Weight






cfm=m³/min×35.3


10

UAY/UAA 310.2 330.2 350.2 380.2


kW 1070 1163 1300 1370USRT 304 331 370 390kcal/h 920,200 1,000,200 1,118,000 1,178,200Btu/h 3,653,000 3,970,500 4,438,200 4,677,200

∗2 Normal Heating CapacitykW 1124 1221 1365 1439

×104 kcal/h 966,000 1,049,816 1,174,000 1,237,000 ×104 Btu/h 3,836,178 4,167,000 4,659,000 4,911,000


Compressor

Type Semi-hermetic Single-screwNo. × Model 2×4222 1×4222 1×4223 2×4223 2×4223Motor Input kW 309 337 366 359Motor Power Input* Heating kW 324 354 384 377

Refrigerant OilModel LPT68Charge L 16×2 16×2 16×2 16×2

EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 3067 3334 3727 3927Pressure Drop kPa 74 87 95 97

Condenser

Type Cross Fin And TubeRows × Stages 3×44 3×44 3×44 4×44FPI 14Face Area m2 36.21 38.22 40.23 40.23

Fan

Type Propeller (Direct Drive)Qty. 18 19 20 20

Air Flow Ratem3/min. 6,600 6,967 7,333 7,333

cfm 232,980 245,923 258,867 258,867Motor Input kW 36 38 40 40

RefrigerantType R22No. of Circuits 2 2 2 2Control Electronic Expansion Valve

Water Piping Connection inch 8Compressor Acoustic Insulation Material Polyurethane FoamingUnit Input kW 345 375 406 399

Unit Dimensions

L mm 9140 10040W mm 2260H mm 2330

Weight

UAA Shipping Weight kg 7800 8515 8570 8890UAA Operation Weight kg 8000 8715 8770 9120UAY Shipping Weight kg 7950 8675 8730 9050UAY Operation Weight kg 8150 8875 8930 9280





cfm=m³/min×35.3


11

UAY/UAA 50.1 60.1 70.1 80.1 100.1




×104 kcal/h 153,900 184,900 216,700 252,781 325,000 ×104 Btu/h 611,000 734,000 860,000 1,003,413 1,290,000


Compressor


RefrigerantOil

Model RL68HCharge L 13 13 13 13 18

EvaporatorType High-efficiency Shell and Tube Flow Rate L/min. 470 567 664 775 996Pressure Drop kPa 18 24 18 28 31

Condenser


Fan




RefrigerantType R407CNo. of Circuits 1 1 1 1 1Control Electronic Expansion Valve



Unit Input kW 61 74 87 101 124

Unit Dimensions

L mm 2980 3210 4110W mm 2260H mm 2290

Weight






cfm=m³/min×35.3

3.2 UAY/UAA050.1FST~UAY/UAA350.2FST[R407C]


12

UAY/UAA 120.1 135.1 150.1 170.1 185.1




×104 kcal/h 381,000 411,000 473,800 564,029 590,683 ×104 Btu/h 1,512,000 1,631,400 1,880,600 2,239,000 2,344,800


Compressor


Refrigerant OilModel RL68HCharge L 18 16 16 16 16


Condenser


Fan






Unit Dimensions

L mm 4110 5050 5950W mm 2260H mm 2290 2310

Weight






cfm=m³/min×35.3


13

UAY/UAA 200.2 220.2 235.2 260.2 285.2




×104 kcal/h 650,009 705,900 758,344 858,000 902,800 ×104 Btu/h 2,580,000 2,802,000 3,010,240 3,406,000 3,584,000


Compressor


No. × Model 2×3220 1×3220 1×3221 2×3221 2×4221 1×4221


RefrigerantOil

Model RL68HCharge L 18×2 18×2 18×2 16×2 16×2


Condenser


Fan






Unit Dimensions

L mm 7340 8240 9140W mm 2260H mm 2330

Weight






cfm=m³/min×35.3


14

UAY/UAA 310.2 330.2 350.2


kW 1033 1122 1255USRT 294 319 357kcal/h 888,000 965,200 1,078,900Btu/h 3,525,100 3,831,500 4,282,900

∗2 Normal Heating CapacitykW 1124 1221 1365

×104 kcal/h 966,400 1,049,900 1,173,600 ×104 Btu/h 3,836,000 4,167,000 4,659,000


Compressor

Type Semi-hermetic Single-screwNo. × Model 2×4222 1×4222 1×4223 2×4223Motor Input kW 326 356 386Motor Power Input* Heating kW 342 373 406

RefrigerantOil

Model RL68HCharge L 16×2 16×2 16×2

EvaporatorType High-efficiency Shell and TubeFlow Rate L/min. 2960 3217 3596Pressure Drop kPa 74 87 95

Condenser

Type Cross Fin And TubeRows × Stages 3×44 3×44 3×44FPI 14Face Area m2 36.21 38.22 40.23

Fan

Type Propeller (Direct Drive)Qty. 18 19 20

Air Flow Rate m3/min. 6,600 6,967 7,333cfm 232,980 245,923 258,867

Motor Input kW 36 38 40

RefrigerantType R407CNo. of Circuits 2 2 2Control Electronic Expansion Valve

Water Piping Connection inch 8Compressor Acoustic Insulation Material Polyurethane FoamingUnit Input kW 362 394 426

Unit Dimensions

L mm 9140 10040W mm 2260H mm 2330

Weight

UAA Shipping Weight kg 7800 8515 8570UAA Operation Weight kg 8000 8715 8770UAY Shipping Weight kg 7950 8675 8730UAY Operation Weight kg 8150 8875 8930





cfm=m³/min×35.3


15

UAY/UAA 50.1 60.1 70.1 80.1 100.1




×104 kcal/h 15 18 21 25 32×104 Btu/h 60 72 84 98 126


Compressor


RefrigerantOil



Condenser


Fan



cfm 42,360 42,360 63,540 63,540 84,720Motor Input kW 7.2 7.2 0.8 10.8 14.4




Unit Input kW 60.2 73.2 85.8 99.8 116.4

Unit Dimensions

L mm 2980 3210 4110W mm 2260H mm 2290

Weight






cfm=m³/min×35.3

3.3 UAY/UAA050.1FLN~UAY/UAA350.2FLN[R22]


16

UAY/UAA 120.1 135.1 150.1 170.1 185.1




×104 kcal/h 37 40 46 55 58×104 Btu/h 148 160 184 219 230


Compressor


RefrigerantOil



Condenser


Fan



cfm 84,720 84,720 105,900 105,900 127,080Motor Input kW 14.4 14.4 18 18 21.6


Water Piping Connection inch 8Compressor Acoustic Insulation Material Polyurethane FoamingUnit Input kW 134.4 140.4 167.0 200.0 191.6

Unit Dimensions

L mm 4110 5050 5950W mm 2260H mm 2290 2310

Weight






cfm=m³/min×35.3


17

UAY/UAA 200.2 220.2 235.2 260.2 285.2




×104 kcal/h 64 69 74 84 88×104 Btu/h 253 275 295 334 351


Compressor


No. × Model 2×3220 1×3220 1×3221 2×3221 2×4221 1×4221


RefrigerantOil

Model LPT68Charge L 18×2 18×2 18×2 16×2 16×2


Condenser


Fan



cfm 148,260 158,850 158,850 158,850 180,030Motor Input kW 25.2 27 28.8 28.8 30.6



Unit Dimensions

L mm 7340 8240 9140W mm 2260H mm 2330

Weight






cfm=m³/min×35.3


18

UAY/UAA 310.2 330.2 350.2




×104 kcal/h 95 103 115×104 Btu/h 376 408 456


Compressor


Refrigerant OilModel LPT68Charge L 16×2 16×2 16×2


Condenser


Fan

Type Propeller (Direct Drive)Qty. 18 19 20

Air Flow Ratem3/min. 5,400 5,700 6,000

cfm 190,620 201,210 211,800Motor Input kW 32.4 34.2 36

RefrigerantType R22No. of Circuits 2 2 2Control Electronic Expansion Valve

Water Piping Connection inch 8Compressor Acoustic Insulation Material Polyurethane FoamingUnit Input kW 341.4 371.2 402.0

Unit Dimensions

L mm 9140 10040W mm 2260H mm 2330

Weight






cfm=m³/min×35.3


19

UAY/UAA 50.1 60.1 70.1 80.1 100.1




×104 kcal/h 15 18 20 24 31×104 Btu/h 58 69 81 95 122


Compressor


RefrigerantOil

Model RL68HCharge L 13 13 13 13 18


Condenser


Fan







Unit Input kW 60.2 73.2 85.8 99.8 122.4

Unit Dimensions

L mm 2980 3210 4110W mm 2260H mm 2290

Weight






cfm=m³/min×35.3

3.4 UAY/UAA050.1FLN~UAA350.2FLN[R407C]


20

UAY/UAA 120.1 135.1 150.1 170.1 185.1




×104 kcal/h 36 39 45 53 56×104 Btu/h 143 154 178 212 222


Compressor


Refrigerant OilModel RL68HCharge L 18 16 16 16 16


Condenser


Fan






Unit Dimensions

L mm 4110 5050 5950W mm 2260H mm 2290 2310

Weight






cfm=m³/min×35.3


21

UAY/UAA 200.2 220.2 235.2 260.2 285.2




×104 kcal/h 61 67 72 81 85×104 Btu/h 244 265 285 322 339


Compressor


No. × Model 2×3220 1×3220 1×3221 2×3221 2×4221 1×4221


RefrigerantOil

Model RL68HCharge L 18×2 18×2 18×2 16×2 16×2


Condenser


Fan



cfm 148,260 148,850 158,850 158,850 180,030Motor Input kW 25.2 27 28.8 28.8 30.6



Unit Dimensions

L mm 7340 8240 9140W mm 2260H mm 2330

Weight






cfm=m³/min×35.3


22

UAY/UAA 310.2 330.2 350.2




×104 kcal/h 91 99 111×104 Btu/h 363 394 440


Compressor


RefrigerantOil

Model RL68HCharge L 16×2 16×2 16×2


Condenser


Fan

Type Propeller (Direct Drive)Qty. 18×TFE800-95 19×TFE800-95 20×TFE800-95

Air Flow Rate m3/min. 5,400 5,700 6,000cfm 190,620 201,210 211,800

Motor Input kW 32.4 34.2 36

RefrigerantType R407CNo. of Circuits 2 2 2Control Electronic Expansion Valve

Water Piping Connection inch 8Compressor Acoustic Insulation Material Polyurethane FoamingUnit Input kW 358.4 390.2 422.0

Unit Dimensions

L mm 9140 10040W mm 2260H mm 2330

Weight






cfm=m³/min×35.3


23

Star Delta Compressors starter – For low inrush current and reduced starting torque.Compressor thermal overload relays – Safety devices against compressor motor overloading in addition to the normal protection related to the electrical windings.Fan thermal overload relays – Safety devices against fan motor overloading in addition to the normal protection related to the electrical windings.Phase protector – The phase monitor with under/over voltage protection controls the phases sequence is correct and controls phase loss and ensure power supply voltage is corrrect.Evaporator electric heater – Electric heater controlled by a thermostat to protect the evaporator from freezing.Victaulic evaporator water connection – Hydraulic joint with gasket for an easy and quick water connection.General fault protection – Contactor for alarm warning.Discharge line shut off valves – Installed on the discharge port of the compressor.Suction line shut off valve – Suction shut-off valve installed on the suction port of the compressor to facilitate maintenance operation (Only for UAA050/UAA060/UAA080).Flow switch – Supplied separately to be wired and installed on the evaporator water piping (by the customer).Spring type vibration mounts – Supplied separately, these have to be positioned under the base of the unit during installation. Ideal for dampening vibrations on roofs installation and metallic structures.

Glycol version – Set-point can go down to -8°C.Speed control – Continuous fan speed modulation on the first fan of each circuit. It allows the unit working with air temperature down to -15 °C.Condenser coil guards – Metal protection guards fixed on all the external surface of the condenser coils.Cu-Cu condenser coils – To give better protection against corrosion by aggressive environments.Blue fin / Gold Fin – Fins are protected by a special acrylic paint with a high resistance to corrosion.High pressure guagesLow pressure guagesSoft starter – Electronic starting device to reduce inrush current and to start compressors gradually, with very low mechanical stress.BMS (Building Management System) protocol – Modbus, LonWorks, BACnet50/100Pa high static pressure fan

Note: These options should be factory mounted. Field modifications are not available.

4.1 Standard accessories (supplied on basic unit)

4.2 Optional accessories (on request)

4. Accessories


24

UAA050~060 / UAY050~060

5. Dimensions

1685

792

513

2290

2260

4

32

2980

1C

onde

nsor

2 3 4 5

Eva

pora

tor

Eva

pora

tor w

ater

inle

tE

vapo

rato

r wat

er o

utle

tC

ontro

l box

5"(O

D13

9.7)

5"(O

D13

9.7)

unit:

mm

5

1

2225

2875

273

6Fa

ns

6


25

UAA070~080 / UAY070~080

513

2290

2225

2260

32

1

5

4

Uni

t: m

m

3210

3100

1685

1017

270

6

1 2 3 4 5 6

Con

dens

orE

vapo

rato

rE

vapo

rato

r wat

er in

let

Eva

pora

tor w

ater

out

let

Con

trol b

oxFa

ns

5`(O

D13

9.7)

5`(O

D13

9.7)


26

UAA100~185 / UAY100~185

2260

H

2225

BC

D

unit:

mm

5

1 3

4A

2

E

1C

onde

nsor

2 3 4 5

Eva

pora

tor

Eva

pora

tor w

ater

out

let

Eva

pora

tor w

ater

intle

tC

ontro

l box

MO

DE

L

UA

A(U

AY

)100

.1F

UA

A(U

AY

)120

.1F

Dim

ensi

on/m

mA

BC

DE

Wat

erco

nnec

tions

5"(O

D13

9.7)

8"(O

D21

9.1)

8"(O

D21

9.1)

8"(O

D21

9.1)

8"(O

D21

9.1)

UA

A(U

AY

)135

.1F

UA

A(U

AY

)150

/170

.1F

UA

A(U

AY

)185

.1F

4000

4000

4000

4900

5800

2090

2090

HL

250

200

225

225

225

2290

2290

2290

2310

2310

442

492

492

512

512

845

895

950

895

900

1885

1960

1960

L

4110

4110

5050

5950

4110

6Fa

ns

6N

ote:

F

ans

No.

coul

d be

foun

dfro

m th

e te

chni

cal p

aram

ete

rs.


27

UAA200~380 / UAY200~380

H

2225

CB

D

2260

A

1C

onde

nsor

2 3 4 5

Eva

pora

tor

Eva

pora

tor w

ater

out

let

Eva

pora

tor w

ater

intle

tC

ontro

l box

unit:

mm

15

32

4

E

MO

DE

L

UA

A(U

AY

)200

.2F

UA

A(U

AY

)220

/235

/260

.2F

UA

A(U

AY

)285

/310

.2F

Dim

ensi

on/m

m

AB

CD

EW

ater

conn

ectio

ns

8"(O

D21

9.1)

8"(O

D21

9.1)

8"(O

D21

9.1)

8"(O

D21

9.1)

UA

A(U

AY

)330

/350

/380

.2F

7200

8100

9000

9900

1800

1800

2000

2702

450

565

1390

1585

HL

702

662

662

662

2330

2330

2330

2330

7340

8240

9140

1004

0

532

597

597

597

L

6

6Fa

ns

Not

e:

Fan

s N

o.co

uld

be fo

und

from

the

tech

nica

l par

am e

ters

.


28

Model LWT °C

Ambient temperature (°C)25 28 30 35 40 42

CAP PI CAP PI CAP PI CAP PI CAP PI CAP PIkW

UAA/UAY050.1

4 168 54 164 55 161 56 153 58 145 61 142 625 175 55 170 56 167 57 159 59 151 62 148 636 181 56 176 57 173 58 164 60 156 63 153 647 187 57 182 58 179 59 170 61 161 64 158 65 8 193 58 188 59 184 60 176 62 167 65 163 669 200 59 194 60 190 61 181 63 172 66 169 67

UAA/UAY060.1

4 203 66 198 67 194 68 185 70 175 73 172 75 5 211 67 205 68 201 69 191 71 182 75 178 766 218 68 212 69 208 70 198 73 188 76 184 78 7 226 70 219 71 215 71 205 74 195 77 191 79 8 233 71 227 72 222 73 212 75 201 79 197 80 9 241 72 234 73 230 74 219 77 208 80 203 82

UAA/UAY070.1

4 238 78 231 79 227 80 216 83 205 86 201 885 247 79 240 80 235 81 224 84 213 88 208 90 6 255 80 248 82 244 82 232 85 220 89 216 917 264 82 257 83 252 84 240 87 228 91 223 938 273 83 265 84 260 85 248 89 235 93 230 95 9 282 85 274 86 269 87 256 90 243 94 238 96

UAA/UAY080.1

4 277 90 270 91 265 93 252 96 239 100 234 1025 288 92 280 93 275 94 261 98 248 102 243 1046 298 93 290 95 284 96 271 99 257 104 252 106 7 308 95 300 96 294 97 280 101 266 106 260 108 8 318 97 310 98 304 99 289 103 275 108 269 110 9 329 98 320 100 314 101 299 105 284 110 278 112

UAA/UAY100.1

4 357 105 347 107 340 108 324 112 308 117 301 1205 370 107 360 109 353 110 336 114 319 119 312 1226 383 109 373 111 366 112 348 116 331 121 324 1247 396 111 385 113 378 114 360 118 342 123 335 1268 409 113 398 115 391 116 372 120 353 126 346 1289 423 115 411 117 403 118 384 122 365 128 357 131

UAA/UAY120.1

4 418 121 407 123 399 125 380 129 361 135 353 1385 434 123 422 125 414 127 394 131 374 137 366 1406 449 126 437 127 428 129 408 134 387 140 379 1437 464 128 452 130 443 131 422 136 401 142 392 1458 480 130 467 132 458 134 436 138 414 145 405 1489 495 133 482 134 473 136 450 141 427 147 418 150

UAA/UAY135.1

4 451 127 439 129 430 130 410 135 389 141 381 1445 468 129 455 131 446 132 425 137 403 143 395 1466 484 131 471 133 462 135 440 140 418 146 409 1497 501 134 487 135 478 137 455 142 432 149 423 1528 517 136 503 138 494 139 470 145 446 151 437 1549 534 138 519 140 510 142 485 147 461 154 451 157

UAA/UAY150.1

4 520 151 506 153 496 155 473 160 449 168 439 1715 539 153 525 156 515 157 490 163 465 171 456 1746 559 156 543 158 533 160 508 166 482 174 472 1777 578 159 562 161 551 163 525 169 499 177 488 1808 597 162 581 164 570 166 542 172 515 180 504 1849 616 165 599 167 588 169 560 175 532 183 520 187

UAA/UAY170.1

4 619 180 602 183 591 185 563 192 534 201 523 2055 642 183 625 186 613 188 583 195 554 204 542 2086 665 187 647 189 635 191 604 198 574 208 562 2127 688 190 669 193 656 195 625 202 594 211 581 2168 711 193 691 196 678 198 646 206 613 215 600 2199 734 197 713 200 700 202 666 209 633 219 620 223

NOTES:CAP: cooling capacity (kW)PI: power input (kW)

6. Capacity Tables

6.1 UAY/UAA050.1FST~UAY/UAA380.2FST[R22]


29

Model LWT °C



UAA/UAY185.1

4 648 173 630 176 618 178 589 184 559 193 547 1975 672 176 654 179 641 181 611 187 580 196 568 2006 696 179 677 182 664 184 632 191 600 199 588 2037 720 182 700 185 687 187 654 194 621 203 608 2078 744 186 723 188 710 191 676 197 642 207 628 2119 768 189 747 192 732 194 697 201 662 210 648 215

UAA/UAY200.2

4 713 207 694 210 681 213 648 220 616 230 603 2355 740 211 720 214 706 216 672 224 638 234 625 2396 766 214 745 217 731 220 696 228 661 238 647 2437 792 218 771 221 756 224 720 232 684 243 669 2488 819 222 796 225 781 228 744 236 706 247 691 2529 845 226 822 229 806 232 768 240 729 252 714 257

UAA/UAY220.2

4 775 225 754 228 739 231 704 239 669 250 654 2555 803 229 781 232 767 235 730 243 693 255 679 2606 832 233 809 236 794 239 756 248 718 259 703 2647 861 237 837 240 821 243 782 252 743 264 727 2698 889 241 865 245 849 248 808 257 767 268 751 2749 918 246 893 249 876 252 834 261 792 273 775 279

UAA/UAY235.2

4 832 242 810 245 794 248 756 257 718 269 703 2755 863 246 839 250 824 253 784 262 745 274 729 2796 894 250 869 254 853 257 812 266 771 278 755 2847 924 255 899 258 882 261 840 271 798 283 781 2898 955 259 929 263 912 266 868 276 824 289 807 2949 986 264 959 268 941 271 896 281 851 294 833 300

UAA/UAY260.2

4 941 257 916 261 898 264 855 273 812 286 795 2925 976 262 949 265 931 268 887 278 842 291 824 2976 1011 266 983 270 965 273 918 283 872 296 854 3027 1046 271 1017 275 998 278 950 288 902 301 883 3078 1080 276 1051 280 1031 283 982 293 932 307 912 3139 1115 281 1084 285 1064 288 1013 299 962 312 942 319

UAA/UAY285.2

4 991 279 964 283 946 287 900 297 855 311 837 3175 1027 284 999 288 981 292 934 302 887 316 868 3236 1064 289 1035 293 1015 297 967 308 918 322 899 3287 1101 294 1070 299 1050 302 1000 313 950 327 930 3348 1137 300 1106 304 1085 307 1033 319 981 333 960 3409 1174 305 1141 309 1120 313 1066 324 1013 339 991 346

UAA/UAY310.2

4 1060 308 1031 312 1012 316 963 328 915 343 896 3505 1099 313 1069 318 1049 321 999 333 949 348 929 3566 1139 319 1107 323 1086 327 1034 339 982 355 962 3627 1178 324 1145 329 1124 333 1070 345 1016 361 995 3688 1217 330 1183 335 1161 339 1105 351 1050 367 1028 3759 1256 336 1221 341 1198 345 1141 358 1084 374 1061 382

UAA/UAY330.2

4 1152 335 1121 340 1100 344 1047 356 994 372 973 3805 1195 341 1162 345 1140 349 1086 362 1031 379 1009 3866 1237 346 1204 351 1181 355 1124 368 1068 385 1045 3937 1280 353 1245 358 1221 362 1163 375 1104 392 1081 4008 1322 359 1286 364 1262 368 1202 382 1141 399 1117 4079 1365 366 1328 371 1303 375 1240 389 1178 407 1153 415

UAA/UAY350.2

4 1288 362 1253 368 1229 372 1170 385 1112 403 1088 4115 1336 369 1299 374 1275 378 1214 392 1153 410 1128 4186 1383 375 1345 380 1320 385 1257 399 1194 417 1168 4267 1431 382 1392 387 1365 392 1300 406 1235 425 1208 4338 1478 389 1438 394 1411 399 1343 413 1276 432 1249 4419 1526 396 1484 401 1456 406 1386 421 1317 440 1289 449

UAA/UAY380.2

4 1358 356 1320 361 1296 366 1233 379 1171 396 1147 4045 1408 362 1369 367 1343 372 1279 385 1215 403 1189 4116 1458 369 1418 374 1391 378 1324 392 1258 410 1231 4187 1508 375 1466 381 1439 385 1370 399 1301 417 1273 4268 1558 382 1515 387 1487 392 1415 406 1344 425 1316 4339 1608 389 1564 394 1534 399 1461 414 1387 433 1358 441



30

Model LWT °C



UAA/UAY050.1

4 163 54 158 55 155 56 148 58 140 61 137 625 169 55 164 56 161 57 153 59 145 62 142 636 175 56 170 57 167 58 159 60 151 63 147 64 7 180 57 176 58 172 59 164 61 156 64 152 658 186 58 181 59 178 60 169 62 161 65 158 669 192 59 187 60 184 61 175 63 166 66 163 67

UAA/UAY060.1

4 196 66 191 67 187 68 178 70 169 73 166 755 203 67 198 68 194 69 185 71 176 75 172 766 211 68 205 69 201 70 191 73 182 76 178 787 218 70 212 71 208 71 198 74 188 77 184 79 8 225 71 219 72 215 73 205 75 194 79 190 809 232 72 226 73 222 74 211 77 201 80 196 82

UAA/UAY070.1

4 230 78 224 79 219 80 209 83 198 86 194 885 238 79 232 80 227 81 217 84 206 88 201 906 247 80 240 82 236 82 224 85 213 89 208 91 7 255 82 248 83 244 84 232 87 220 91 216 938 264 83 257 84 252 85 240 89 228 93 223 95 9 272 85 265 86 260 87 247 90 235 94 230 96

UAA/UAY080.1

4 268 90 260 91 255 93 243 96 231 100 226 1025 277 92 270 93 265 94 252 98 239 102 234 1046 287 93 279 95 274 96 261 99 248 104 243 1067 297 95 289 96 284 97 270 101 256 106 251 1088 307 97 299 98 293 99 279 103 265 108 259 110 9 317 98 308 100 302 101 288 105 273 110 268 112

UAA/UAY100.1

4 344 111 334 112 328 114 312 118 297 123 290 1265 357 113 347 114 340 116 324 120 308 125 301 1286 369 115 359 116 352 118 335 122 319 127 312 1307 382 117 371 118 364 120 347 124 330 130 323 1328 395 119 384 120 377 122 359 126 340 132 333 1359 407 121 396 123 389 124 370 129 351 134 344 137

UAA/UAY120.1

4 403 128 392 129 385 131 366 136 348 142 341 1455 418 130 407 132 399 133 380 138 361 144 353 1476 433 132 421 134 413 136 393 141 374 147 366 1507 448 134 436 136 427 138 407 143 387 150 378 1538 463 137 450 139 442 140 420 146 399 152 391 1559 478 139 465 141 456 143 434 148 412 155 403 158

UAA/UAY135.1

4 435 133 423 135 415 136 395 141 375 148 367 1515 451 135 439 137 430 139 410 144 389 150 381 1546 467 138 454 140 446 141 424 146 403 153 395 1567 483 140 470 142 461 144 439 149 417 156 408 1598 499 143 486 145 476 146 454 152 431 159 422 1629 515 145 501 147 492 149 468 154 445 162 435 165

UAA/UAY150.1

4 502 158 489 160 479 162 456 168 434 176 424 1795 521 161 507 163 497 165 473 171 450 179 440 1826 539 164 525 166 515 168 490 174 465 182 456 1867 558 166 543 169 532 171 507 177 481 185 471 1898 577 169 561 172 550 174 524 180 497 188 487 1929 595 173 579 175 568 177 541 183 513 192 503 196

UAA/UAY170.1

4 598 189 581 192 570 194 543 201 516 211 505 2155 620 193 603 195 591 198 563 205 535 214 523 2186 642 196 624 199 612 201 583 208 554 218 542 2227 664 199 645 202 633 205 603 212 573 222 561 2268 686 203 667 206 654 208 623 216 592 226 579 2309 708 207 688 210 675 212 643 220 611 230 598 235


6.2 UAA/UAY050.1FST~UAA/UAY350.2FST[R407C]


31

Model LWT °C



UAA/UAY185.1

4 625 182 608 185 597 187 568 194 540 203 528 2075 648 185 631 188 619 190 589 197 559 206 548 2106 671 188 653 191 641 193 610 200 579 210 567 2147 694 192 675 195 663 197 631 204 599 213 587 2188 718 195 698 198 685 200 652 208 619 217 606 2229 741 199 720 202 707 204 673 211 639 221 625 226

UAA/UAY200.2

4 689 218 670 221 657 224 626 232 594 242 582 2475 714 222 695 225 681 227 649 236 616 246 603 2516 739 225 719 229 706 231 672 240 638 251 625 2567 765 229 744 233 730 235 695 244 660 255 646 2608 790 234 769 237 754 240 718 248 682 260 667 2659 816 238 793 241 778 244 741 253 704 265 689 270

UAA/UAY220.2

4 748 237 728 240 714 243 680 252 646 263 632 2695 776 241 754 244 740 247 705 256 669 268 655 2736 803 245 781 248 767 251 730 260 693 272 679 2787 831 249 808 253 793 256 755 265 717 277 702 2838 859 254 835 257 819 260 780 270 741 282 725 2889 886 258 862 262 846 265 805 275 765 287 748 293

UAA/UAY235.2

4 804 254 782 258 767 261 730 271 693 283 679 2895 833 259 810 262 795 266 757 275 719 288 704 2946 863 263 839 267 823 270 784 280 745 293 729 2997 893 268 868 272 852 275 811 285 770 298 754 3048 922 273 897 277 880 280 838 290 796 303 779 3109 952 278 926 282 908 285 865 295 821 309 804 315

UAA/UAY260.2

4 909 270 884 273 867 277 826 287 784 300 767 3065 942 274 916 278 899 281 856 292 813 305 796 3116 976 279 949 283 931 286 887 297 842 310 824 3177 1009 284 982 288 963 291 917 302 871 316 852 3228 1043 289 1014 293 995 297 947 307 900 322 881 3289 1076 294 1047 299 1027 302 978 313 929 327 909 334

UAA/UAY285.2

4 956 294 930 298 913 301 869 312 825 327 808 3335 992 299 964 303 946 307 901 318 856 332 837 3396 1027 304 999 308 980 312 933 323 886 338 867 3457 1062 309 1033 314 1014 317 965 329 916 344 897 3518 1097 315 1067 319 1047 323 997 335 947 350 927 3579 1133 321 1102 325 1081 329 1029 341 977 357 957 364

UAA/UAY310.2

4 1024 323 996 328 977 332 930 344 883 359 865 3675 1061 329 1032 333 1013 337 964 350 916 366 896 3736 1099 334 1069 339 1049 343 999 356 948 372 928 3807 1137 340 1106 345 1085 349 1033 362 981 379 960 3868 1175 347 1142 351 1121 356 1067 369 1014 385 992 3939 1212 353 1179 358 1157 362 1102 375 1046 392 1024 400

UAA/UAY330.2

4 1112 352 1081 357 1061 361 1010 374 959 391 939 3995 1153 358 1121 363 1100 367 1047 380 995 398 974 4066 1194 364 1161 369 1139 374 1085 387 1030 405 1008 4137 1235 370 1201 376 1178 380 1122 394 1066 412 1043 4208 1276 377 1241 383 1218 387 1159 401 1101 419 1078 4289 1317 384 1281 390 1257 394 1196 408 1136 427 1112 436

UAA/UAY350.2

4 1244 380 1210 386 1187 390 1130 404 1073 423 1050 4325 1289 387 1254 392 1231 397 1172 411 1113 430 1089 4396 1335 394 1299 399 1274 404 1213 419 1152 438 1128 4477 1381 401 1343 406 1318 411 1255 426 1192 446 1167 4558 1427 408 1388 414 1362 418 1297 434 1231 454 1205 4639 1473 415 1433 421 1406 426 1338 442 1271 462 1244 471



32


Model LWT °C

Ambient temperature (°C)25 28 30 35 40

CAP PI CAP PI CAP PI CAP PI CAP PIkW

UAA/UAY050.1

4 165 54 161 55 158 55 150 57 143 605 172 55 167 55 164 56 156 58 148 616 178 56 173 56 170 57 161 59 153 627 184 57 179 57 175 58 167 60.2 159 638 190 58 185 58 181 59 173 61 164 649 196 59 191 60 187 60 178 62 169 65

UAA/UAY060.1

4 199 65 194 66 190 67 181 70 172 735 207 66 201 67 197 68 188 71 178 746 214 68 208 69 204 69 194 72 185 757 221 69 215 70 211 71 201 73.2 191 778 229 70 222 71 218 72 208 75 197 789 236 71 229 72 225 73 214 76 204 79

UAA/UAY070.1

4 233 77 226 78 222 79 212 81 201 855 241 78 235 79 230 80 219 83 208 876 250 79 243 80 239 81 227 84 216 887 259 81 252 82 247 83 235 85.8 223 908 267 82 260 83 255 84 243 87 231 919 276 84 268 85 263 86 251 89 238 93

UAA/UAY080.1

4 272 89 264 90 259 91 247 95 234 995 282 91 274 92 269 93 256 96 243 1016 292 92 284 94 278 95 265 98 252 1037 302 94 293 95 288 96 274 99.8 260 1048 312 96 303 97 297 98 283 102 269 1069 322 97 313 99 307 100 292 103 277 108

UAA/UAY100.1

4 350 104 340 105 334 107 318 111 302 1165 363 106 353 107 346 108 330 112 313 1186 376 108 365 109 358 110 341 114 324 1207 389 109 378 111 371 112 353 116.4 335 1228 401 111 390 113 383 114 365 118 346 1249 414 113 403 115 395 116 376 121 357 126

UAA/UAY120.1

4 410 120 399 122 391 123 373 128 354 1335 425 122 414 124 406 125 386 130 367 1366 441 124 428 126 420 127 400 132 380 1387 456 126 443 128 435 130 414 134.4 393 1418 471 129 458 130 449 132 428 137 406 1439 486 131 473 133 464 134 441 139 419 146

UAA/UAY135.1

4 442 125 430 127 422 129 402 133 381 1395 458 127 446 129 437 131 416 136 395 1426 475 130 462 132 453 133 431 138 409 1447 491 132 477 134 468 135 446 140.4 424 1478 507 134 493 136 484 138 461 143 438 1499 523 137 509 139 500 140 476 146 452 152

UAA/UAY150.1

4 510 149 496 151 487 153 464 159 440 1665 529 152 515 154 505 156 481 161 457 1696 548 154 533 156 523 158 498 164 473 1727 567 157 551 159 541 161 515 167 489 1758 586 160 570 162 559 164 532 170 505 1789 604 163 588 165 577 167 549 173 522 181

UAA/UAY170.1

4 607 179 591 181 580 183 552 190 524 1995 630 182 613 184 601 186 572 193 543 2026 652 185 634 187 622 190 593 197 563 2067 675 188 656 191 644 193 613 200 582 2098 697 191 678 194 665 196 633 204 601 2139 719 195 700 198 687 200 654 207 621 217

6.3 UAA/UAY050.1 FLN ~ UAA/UAY350.2 FLN [R22]


33


Model LWT °C



UAA/UAY185.1

4 635 171 618 174 606 176 577 182 548 1905 659 174 641 176 629 179 598 185 568 1946 682 177 663 180 651 182 620 188 589 1977 705 180 686 183 673 185 641 191.6 609 2008 729 183 709 186 696 188 662 195 629 2049 752 187 732 189 718 192 684 199 649 208

UAA/UAY200.2

4 700 205 680 208 668 210 636 218 604 2285 725 208 706 211 692 214 659 221 626 2316 751 212 731 215 717 217 683 225 648 2367 777 216 756 219 741 221 706 229.2 670 2408 803 219 781 223 766 225 729 233 693 2449 829 223 806 227 791 229 753 238 715 248

UAA/UAY220.2

4 759 222 738 225 724 228 690 236 655 2475 787 226 765 229 751 232 715 240 679 2516 815 230 793 233 778 236 741 245 703 2567 843 234 820 237 805 240 766 249 727 2608 871 238 847 242 831 245 791 253 752 2659 899 243 874 246 858 249 817 258 776 270

UAA/UAY235.2

4 816 239 793 243 778 245 741 254 704 2665 846 243 822 247 807 250 768 259 730 2706 876 247 852 251 836 254 796 263 756 2757 906 252 881 255 864 258 823 267.8 782 2808 936 256 910 260 893 263 850 273 808 2859 966 261 939 265 922 268 878 278 833 290

UAA/UAY260.2

4 923 254 897 258 880 261 838 270 796 2835 957 259 930 262 913 265 869 275 825 2886 991 263 963 267 945 270 900 280 855 2937 1025 268 997 272 978 275 931 284.8 884 2988 1059 273 1030 277 1010 280 962 290 913 3039 1093 278 1063 282 1043 285 993 295 943 309

UAA/UAY285.2

4 971 276 944 280 927 284 882 294 838 3075 1007 281 979 285 961 288 915 299 869 3136 1043 286 1014 290 995 293 947 304 900 3187 1079 291 1049 295 1029 299 980 309.6 931 3248 1114 296 1084 301 1063 304 1013 315 962 3309 1150 302 1119 306 1098 310 1045 321 992 336

UAA/UAY310.2

4 1039 305 1011 309 992 313 944 324 897 3395 1078 310 1048 314 1029 318 979 330 930 3456 1116 315 1086 320 1065 324 1014 335 963 3517 1154 321 1123 326 1102 329 1049 341.4 996 3578 1193 327 1160 331 1138 335 1084 348 1029 3639 1231 333 1197 338 1175 341 1119 354 1062 370

UAA/UAY330.2

4 1130 331 1099 336 1078 340 1026 352 975 3695 1171 337 1139 342 1118 346 1064 358 1011 3756 1213 343 1180 348 1158 352 1102 365 1047 3817 1255 349 1220 354 1197 358 1140 371.2 1083 3888 1296 355 1261 360 1237 365 1178 378 1119 3959 1338 362 1301 367 1277 371 1216 385 1155 402

UAA/UAY350.2

4 1262 359 1228 364 1205 368 1147 382 1089 3995 1309 365 1273 370 1249 375 1189 388 1130 4066 1356 371 1318 377 1294 381 1232 395 1170 4137 1402 378 1364 383 1338 388 1274 402 1210 4208 1449 385 1409 390 1382 395 1316 409 1250 4289 1495 392 1454 397 1427 402 1359 417 1290 436


34


Model LWT °C



UAA/UAY050.1

4 160 54 155 55 152 55 145 57 138 605 165 55 161 55 158 56 150 58 143 616 171 56 167 56 163 57 156 59 148 627 177 57 172 57 169 58 161 60.2 153 638 183 58 178 58 175 59 166 61 158 649 189 59 184 60 180 60 172 62 163 65

UAA/UAY060.1

4 192 65 187 66 183 67 175 70 166 735 199 66 194 67 190 68 181 71 172 746 206 68 201 69 197 69 188 72 178 757 214 69 208 70 204 71 194 73.2 184 778 221 70 215 71 211 72 200 75 190 789 228 71 221 72 217 73 207 76 196 79

UAA/UAY070.1

4 225 77 219 78 215 79 204 81 194 855 233 78 227 79 223 80 212 83 201 876 242 79 235 80 230 81 219 84 208 887 250 81 243 82 238 83 227 85.8 216 908 258 82 251 83 246 84 235 87 223 919 266 84 259 85 254 86 242 89 230 93

UAA/UAY080.1

4 263 89 255 90 251 91 239 95 227 995 272 91 265 92 260 93 247 96 235 1016 282 92 274 94 269 95 256 98 243 1037 292 94 284 95 278 96 265 99.8 252 1048 301 96 293 97 288 98 274 102 260 1069 311 97 302 99 297 100 283 103 268 108

UAA/UAY100.1

4 337 109 328 111 322 112 306 116 291 1225 349 111 340 113 333 114 317 118 301 1246 362 113 352 115 345 116 329 120 312 1267 374 115 364 117 357 118 340 122.4 323 1288 387 117 376 119 369 120 351 125 334 1309 399 119 388 121 381 122 363 127 344 133

UAA/UAY120.1

4 395 126 385 128 377 130 359 134 341 1405 410 128 399 130 391 132 372 137 354 1436 425 131 413 133 405 134 386 139 366 1457 439 133 427 135 419 136 399 141.4 379 1488 454 135 441 137 433 139 412 144 391 1519 468 138 455 140 447 141 425 147 404 153

UAA/UAY135.1

4 426 132 414 133 407 135 387 140 368 1465 442 134 430 136 422 137 401 142 381 1496 458 136 445 138 437 140 416 145 395 1517 473 139 460 141 452 142 430 147.4 408 1548 489 141 476 143 467 145 444 150 422 1579 505 144 491 146 482 147 459 153 435 160

UAA/UAY150.1

4 492 156 478 158 469 160 447 166 424 1745 510 159 496 161 486 163 463 169 440 1776 528 162 513 164 504 166 480 172 455 1807 546 165 531 167 521 169 496 175 471 1838 564 168 549 170 538 172 512 178 487 1869 582 171 566 173 556 175 529 181 502 190

UAA/UAY170.1

4 586 187 570 190 559 192 532 199 505 2095 607 191 591 193 579 196 552 203 524 2126 629 194 612 197 600 199 571 206 543 2167 650 197 633 200 621 203 591 210 561 2208 672 201 654 204 641 206 611 214 580 2249 694 205 675 208 662 210 630 218 599 228

6.4 UAA/UAY050.1 FLN ~ UAA/UAY350.2 FLN [R407C]


35


Model LWT °C



UAA/UAY185.1

4 612 180 596 183 584 185 556 191 528 2005 635 183 618 186 606 188 577 195 548 2046 658 186 640 189 628 191 597 198 567 2077 680 190 661 192 649 195 618 201.6 587 2118 703 193 683 196 671 198 638 205 606 2159 725 197 705 199 692 202 659 209 626 219

UAA/UAY200.2

4 675 215 656 218 644 221 613 229 582 2405 700 219 681 222 668 225 636 233 604 2446 725 223 705 226 691 229 658 237 625 2487 749 227 729 230 715 233 681 241.2 647 2528 774 231 753 234 739 237 704 246 668 2579 799 235 777 238 763 241 726 250 690 261

UAA/UAY220.2

4 733 234 713 237 700 240 666 249 633 2605 760 238 739 241 726 244 691 253 656 2656 787 242 766 246 751 248 715 257 679 2697 814 246 792 250 777 253 740 262 703 2748 841 251 818 254 803 257 765 267 726 2799 869 255 845 259 829 262 789 272 749 284

UAA/UAY235.2

4 787 252 765 255 751 258 715 268 679 2805 816 256 793 260 779 263 741 272 704 2856 845 260 822 264 806 267 768 277 729 2907 874 265 850 269 834 272 794 281.8 754 2958 903 270 878 274 862 277 820 287 779 3009 932 275 906 279 889 282 847 292 804 306

UAA/UAY260.2

4 890 267 865 271 849 274 809 284 768 2975 923 271 897 275 881 278 838 289 796 3026 955 276 929 280 912 283 868 294 824 3077 988 281 961 285 943 288 898 298.8 853 3128 1021 286 993 290 974 293 928 304 881 3189 1054 291 1025 295 1006 299 958 310 909 324

UAA/UAY285.2

4 937 291 912 295 895 298 852 309 809 3235 972 296 945 300 928 303 883 314 839 3296 1007 301 979 305 961 309 915 320 869 3357 1041 306 1013 311 994 314 946 325.6 898 3418 1076 312 1046 316 1027 320 977 331 928 3479 1110 317 1080 322 1060 326 1009 338 958 353

UAA/UAY310.2

4 1003 320 975 325 957 328 911 340 865 3565 1040 325 1011 330 992 334 945 346 897 3626 1077 331 1047 336 1028 340 978 352 929 3687 1114 337 1083 342 1063 346 1012 358.4 961 3758 1151 343 1119 348 1098 352 1046 365 993 3829 1188 349 1155 354 1133 358 1079 372 1025 389

UAA/UAY330.2

4 1090 348 1060 353 1040 357 990 370 941 3875 1130 354 1099 359 1079 364 1027 377 975 3946 1170 360 1138 366 1117 370 1063 383 1010 4017 1211 367 1177 372 1155 376 1100 390.2 1045 4088 1251 374 1217 379 1194 383 1136 397 1079 4159 1291 380 1256 386 1232 390 1173 404 1114 423

UAA/UAY350.2

4 1218 377 1184 382 1162 387 1107 401 1051 4195 1263 383 1228 389 1205 393 1147 408 1090 4266 1308 390 1272 395 1248 400 1188 415 1128 4347 1353 397 1316 402 1291 407 1229 422 1167 4418 1398 404 1359 410 1334 414 1270 430 1206 4499 1442 411 1403 417 1376 422 1311 437 1245 458


36

Water flow rate (L/S)

Pre

ssur

e dr

op (K

Pa)

7. Pressure Drop Through Evaporator

UAA380.2F/UAY380.2FUAA350.2F/UAY350.2FUAA310.2F/UAY310.2FUAA330.2F/UAY330.2F

UAA170.1F/UAY170.1F/UAA235.2F/UAY235.2FUAA285.2F/UAY285.2F

UAA185.1F/UAY185.1F/UAA200.2F/UAY200.2FUAA260.2F/UAY260.2FUAA150.1F/UAY150.1FUAA135.1F/UAY135.1FUAA120.1F/UAY120.1FUAA100.1F/UAY100.1F

UAA070.1F/UAY080.1F/UAA070.1F/UAY080.1FUAA060.1F/UAY060.1FUAA050.1F/UAY060.1F


37

System Water Volume

It is important to have adequate water volume in the system to provide an opportunity for the chiller to sense a load change, adjust to the change and stabilize. As the expected load change becomes more rapid, a greater water volume is needed. The system water volume is the total amount of water in the evaporator, air handling products and associated piping. If the water volume is too low, operational problems can occur including rapid compressor cycling, rapid loading and unloading of compressors, erratic refrigerant flow in the chiller, improper motor cooling, shortened equipment life and other undesirable occurrences.

For normal comfort cooling applications where the cooling load changes relatively slowly, we recommend a minimum system volume. Calculation of the water volume (m3) is as below:

where:

L = minimum water volume (m3)

P = nominal cooling capacity (kW)

Water flow range

Model UAY/UAA 50 60 70 80 100 120 135 150 170 185Water Flow Rate

Range m3/h 25~40 25~48 32~56 34~66 43~85 51~99 55~107 63~124 75~147 78~153

Model 200 220 235 260 285 310 330 350 380Water Flow Rate

Range m3/h 87~169 95~183 101~198 114~224 120~235 129~251 140~273 157~306 165~321

L = P × 0.0068

8. Operation Limits

8.1 Operation Limits

OPERATION LIMIT(COOL)

35 40 45 55 6050

OPERATION LIMIT(HEAT)

-5

0

5

15

25

35

10

20

30

40

45

-10

0 5 10 15 20 25

-5

0

5

15

25

10

20

-10

-5-10

-15 -1530

-20

NOTE:1、At standard water flow rate;2、Using ethylene glycol，LWT can reach to -8℃;3、The range of relative humidity is below 90%.

LEAVING CHILLED WATER TEMP(℃)

LEAVING HEATED WATER TEMP(℃)

OU

TDO

OR

TEM

P (℃

D.B

.)

OU

TDO

OR

TEM

P ( ℃

D.B

.)

Unload area Recommended area

Add

ed G

lyco

l

Running range

Added fan speed controller


35 40 45 55 6050


-5

0

5

15

25

35

10

20

30

40

45

-10

0 5 10 15 20 25

-5

0

5

15

25

10

20

-10

-5-10

-15 -1530

-20




OU

TDO

OR

TEM

P (℃

D.B

.)

OU

TDO

OR

TEM

P ( ℃

D.B

.)


Add

ed G

lyco

l

Running range



35 40 45 55 6050


-5

0

5

15

25

35

10

20

30

40

45

-10

0 5 10 15 20 25

-5

0

5

15

25

10

20

-10

-5-10

-15 -1530

-20




OU

TDO

OR

TEM

P (℃

D.B

.)

OU

TDO

OR

TEM

P ( ℃

D.B

.)


Add

ed G

lyco

l

Running range



35 40 45 55 6050


-5

0

5

15

25

35

10

20

30

40

45

-10

0 5 10 15 20 25

-5

0

5

15

25

10

20

-10

-5-10

-15 -1530

-20




OU

TDO

OR

TEM

P (℃

D.B

.)

OU

TDO

OR

TEM

P ( ℃

D.B

.)


Add

ed G

lyco

l

Running range



38

Fouling factor (m2°C/kw) Cooling capacity correction Power correction COP correction0.017 1.045 0.974 1.073

0.044 1.022 0.986 1.037

0.086 1.000 1.000 1.000

0.132 0.980 1.013 0.967

Altitude correction factorsElevation above sea level (m) 0 300 600 900 1200 1500 1800

Barometric pressure (bar) 1.013 0.977 0.942 0.908 0.875 0.843 0.812

Cooling capacity correction factor 1.000 0.993 0.986 0.979 0.973 0.976 0.960

Power input correction factor 1.000 1.005 1.009 1.015 1.021 1.026 1.031

Ethylene glycol correction factors% Of ethylene glycol by weight 10 20 30 40 50

Cooling capacity correction factor 0.991 0.982 0.972 0.961 0.946

Power input correction factor 0.996 0.992 0.986 0.976 0.966

Water flow rate correction factor 1.013 1.04 1.074 1.121 1.178

Water pressure drops correction factor 1.070 1.129 1.181 1.263 1.308

Low temperature operation performance factorsEthylene glycol leaving water temperature of chilled water (°C) 2 0 -2 -4 -6 -8

Max. ambient temperature (°C) 40 39 38 37 36 35

Cooling capacity correction factor 0.842 0.785 0.725 0.67 0.613 0.562

Power input of compressor correction factor 0.95 0.94 0.92 0.89 0.87 0.84

Min. % of ethylene glycol 10 20 20 30 30 30

Fouling factors (water side heat exchanger)

8.2 Correction


39

Model UAY/UAAOctave band level Overall

dBA Hz 63 125 250 500 1000 2000 4000 8000

46.4 65.5 71.6 76.2 75.3 71.3 64.9 56.4 74.0

43.5 56.6 63.3 69.4 70.0 65.6 60.2 56.0 74.0

53.7 64.6 70.3 71.0 69.7 65.2 57.4 49.3 76.0

48.0 63.6 69.2 71.0 69.6 68.0 61.4 53.9 76.0

53.9 66.4 72.4 71.2 70.9 65.5 59.6 53.3 77.0

40.5 58.2 65.8 71.8 73.5 68.2 60.6 54.1 77.0

46.5 58.5 68.3 71.0 72.8 69.4 62.3 54.9 77.0

51.9 69.1 72.4 72.9 72.2 64.5 57.4 50.6 78.0

51.8 66.7 69.9 73.3 73.6 68.2 60.3 51.4 78.0

46.7 65.2 70.8 74.6 74.0 69.5 62.0 52.1 79.0

45.8 65.9 69.8 73.6 74.1 71.7 63.0 56.7 79.0

49.3 66.7 71.7 74.3 75.2 72.2 65.5 58.5 80.0

54.2 66.6 75.0 74.0 74.5 70.1 63.7 57.2 80.5

46.4 65.5 71.6 76.2 75.3 71.3 64.9 56.4 80.5

53.7 68.1 73.3 77.3 76.5 72.9 67.0 59.1 81.0

58.8 68.1 71.9 74.9 76.6 73.7 66.9 60.0 81.0

46.4 65.5 71.6 76.2 75.3 71.3 64.9 56.4 81.0

45.4 60.5 72.1 76.0 75.5 71.6 65.4 56.8 81.0

54.6 67.6 73.2 76.6 76.6 72.7 66.4 59.2 81.5

050.1FST

060.1FST

070.1FST

080.1FST

100.1FST

120.1FST

135.1FST

150.1FST

170.1FST

185.1FST

200.2FST

220.2FST

235.2FST

260.2FST

285.2FST

310.2FST

330.2FST

350.2FST

380.2FST

Notes: Average sound pressure level is according to ISO 3744, semispheric free field conditions.Sound pressure levels are referred to units furnished without hydraulic kit.Measuring location is at 1m from the unit in semispheric free field (rif. 2×10-5 Pa).

9.1 ST Overall Sound Level and Octave Band Level

9. Sound Level


40

Model UAY/UAAOctave band level Overall

dBA Hz 63 125 250 500 1000 2000 4000 8000

48.0 45.4 58.0 64.9 65.9 62.0 56.8 49.5 70.0

42.2 45.4 57.3 66.3 66.2 60.1 53.1 44.5 70.0

49.9 49.1 57.4 65.6 70.0 60.8 53.8 49.4 72.0

52.0 51.3 56.8 65.9 69.9 60.4 53.2 48.5 72.0

41.3 55.2 62.3 67.9 69.2 65.6 58.9 50.9 73.0

52.0 53.0 59.9 67.1 70.3 64.8 58.0 50.7 73.0

53.8 54.9 59.7 67.3 70.3 64.9 58.2 50.3 73.0

47.3 57.5 63.7 69.2 70.4 64.8 58.1 50.1 74.0

43.5 56.6 63.3 69.4 70.0 65.6 60.2 56.0 74.0

43.5 58.1 64.8 70.5 71.2 65.1 57.8 49.1 75.0

40.6 58.0 65.9 69.6 70.6 66.4 60.4 56.0 75.0

42.9 58.1 67.2 70.2 70.6 65.7 60.0 55.0 75.0

43.3 56.8 67.8 71.3 71.8 66.1 58.3 51.4 76.0

47.2 59.3 65.2 70.5 72.0 68.0 62.4 56.7 76.0

40.4 57.0 67.3 72.3 73.0 68.4 60.9 52.5 77.0

37.7 60.8 66.1 71.2 73.2 69.3 62.9 56.9 77.0

44.2 61.9 67.5 72.3 72.1 67.6 61.3 55.2 77.0

43.2 50.5 66.9 72.2 73.1 68.7 61.6 51.8 77.0

050.1FLN

060.1FLN

070.1FLN

080.1FLN

100.1FLN

120.1FLN

135.1FLN

150.1FLN

170.1FLN

185.1FLN

200.2FLN

220.2FLN

235.2FLN

260.2FLN

285.2FLN

310.2FLN

330.2FLN

350.2FLN

Notes: Average sound pressure level is according to ISO 3744, semispheric free field conditions.Sound pressure levels are referred to units furnished without hydraulic kit.Measuring location is at 1m from the unit in semispheric free field (rif. 2×10-5 Pa).

9.2 LN Overall Sound Level and Octave Band Level


41

Notes: LRA -- Locked rotor Amps in Delta for each compressor.MFA -- Max. Fuse Amps for each compressor.FLA -- Full Load Amps for each fan motor.MRA -- Max. Running Amps for unit(based on outdoor temp. 44°C).RLA -- Rated load Amps for unit(based on outdoor temp. 35°C).Inrush Amps -- Single System: Compressor inrush current + Control circuit current.Dual System: Inrush current of Max. size compressor + 0.8×running current of small size compressor (based on outdoor temp. 44°C) + Fan current + Control circuit current.The size of power cable and breaker is recommended larger than MRA, ensuring the breaker doesn't trip off while the chiller is starting.

UnitStarting

Comp.(each) Fan motor(each) UnitModel

UAY/UAA Volts-Ph-Hz Voltage range Qty. LRA MFA Qty. kW FLA MRA RLA Inrush Amps

050.1FST2

380-440/3/50Hz Max.440V Min.342V Star-Delta

1 643 160 4 2 4 130 110 248050.1FST4060.1FST2

1 643 200 4 2 4 156 131 248060.1FST4070.1FST2

1 906 200 6 2 4 181 153 350070.1FST4080.1FST2

1 906 250 6 2 4 204 173 350080.1FST4100.1FST2

1 1678 315 8 2 4 257 215 648100.1FST4120.1FST2

1 1678 355 8 2 4 289 239 648120.1FST4135.1FST2

1 2166 355 8 2 4 299 251 837135.1FST4150.1FST2

1 2166 400 10 2 4 381 294 837150.1FST4170.1FST2

1 2166 500 10 2 4 429 365 837170.1FST4185.1FST2

1 2166 500 12 2 4 449 374 837185.1FST4200.2FST2

21678 315

14 2 4 499 417 881200.2FST4 1678 315220.2FST2

21678 315

15 2 4 537 449 893220.2FST4 1678 355235.2FST2

21678 355

16 2 4 622 503 921235.2FST4 1678 355260.2FST2

22166 355

16 2 4 647 539 1117260.2FST4 2166 355285.2FST2

22166 355

17 2 4 701 580 1162285.2FST4 2166 400310.2FST2

22166 400

18 2 4 757 636 1166310.2FST4 2166 400330.2FST2

22166 400

19 2 4 839 705 1222330.2FST4 2166 500350.2FST2

22166 500

20 2 4 939 788 1226350.2FST4 2166 500380.2FST2 2 2166 500 20 2 4 891 750 1226

10. Electric Characteristics


42

UAA050~060 / UAY050~060

UAA070~080/UAY070~080

11. Foundation

BAInstallation base

Unit base

Control box

Distribution of shock absorber

BA

AInstallation base

Unit base

Control box


A

B

B

Unit: mm

Unit modelLoad of spring shock absorber (kg)

A B

UAA 050.1/050.1 684 576

UAY 050.1/050.1 695 590

Unit: mm


A B

UAA 070.1/080.1 834 711

UAY 070.1/080.1 846 719


43

UAA100/UAY100

CAInstallation base

Unit base

Control box


B

CBA

Unit: mm


A B C

UAA100.1 642 642 586

UAY100.1 652 652 596

UAA120/UAY120

CAInstallation base

Unit base

Control box


B

CBA

Unit: mm


A B C

UAA120.1 717 723 615

UAY120.1 727 737 631


44

UAA135/UAY135

CAInstallation base

Unit base

Control box


B

CBA

UAA150~170/UAY150~170

CAInstallation base

Unit base

Control box


B

CBA

Unit: mm


A B C

UAA135.1 684 721 545

UAY135.1 730 772 653

Unit: mm


A B C

UAA150.1/170.1 809 826 790

UAY150.1/170.1 810 834 821


45

UAA185/UAY185

AInstallation base

Unit base

Control box


B

BA

C

C

UAA200/UAY200

CAInstallation base

Unit base

Control box


B

CBA

D

D

Unit: mm


A B C

UAA185.1 810 918 987

UAY185.1 880 929 946

Unit: mm


A B C D

UAA200.2 875 792 792 875

UAY200.2 882 826 826 882


46

UAA220~235/UAY220~235

CAInstallation baseUnit baseControl boxDistribution of shock absorber

B D

DCBA

Unit: mm


A B C D

UAA220.2 960 980 809 809

UAY220.2 957 978 854 810

UAA235.2 1038 1039 876 876

UAY235.2 1024 1052 900 868

UAA260/UAY260


B D

DCBA

Unit: mm


A B C D

UAA260.2 1022 1034 897 897

UAY260.2 1010 1050 923 887


47

UAA285~310/UAY285~310

UAA330~380/UAY330~380

Note: The unit should be set on a horizontal flat foundation, ground floor or building roof capable of supporting the operating weight of the entire equipment. See Specifications for the operating weight.Levelness of ground base ≤ 0.1%.A drainage ditch shall be set around the earth base to prevent water logging, and the foundation shall have smooth edge.The foundation shall have enough strength to support the operating weight of the entire unit (the water piping having counted on the support).A spring damper shall be installed between the unit and the ground base. Set bolts shall not be pre-buried.The model of shock absorber shall be chosen according to the load to be carried, and cannot be exchanged.


B D

DCBA


B D E

EDCBA

Unit: mm


A B C D

UAA285.2 1040 1045 936 780

UAY285.2 1042 1074 978 960

UAA310.2 1018 1024 963 995

UAY310.2 1019 1053 1006 997

Unit: mm


A B C D E

UAA330.2 966 978 832 800 780

UAY330.2 969 992 882 812 782

UAA350.2 967 979 841 810 789

UAY350.2 969 992 891 821 791

UAA380.2 988 1001 886 854 831

UAY380.2 990 1014 933 865 833


48

If locations of a pump and an expansion tank are wrong ,air is intermixed into the chilled water system,

which may reduce capacity of the water chiller and cause abnormal noise. Be sure to install the pump on.

12. Location of Water Circulating Pump


49

13.1.1 LocationMake sure the job site is clean, dirt and dust will accelerate aging of the machine;

Hydraulic system and power supply are ready. Test under the requirement of the unit;

Double check the unit base. Make the base firm to meet the installation regulations;

Lifting and moving must be performed by professional personnel and companies.

13.1.2 UnloadThe unit is transported with charged refrigerant in the system. So take care while transporting the unit. The fins of the condenser are very soft. It will influence the heat exchange if the unit falls down or crafted.Use the fork truck to move the unit in a short distance. And put 3~6 pieces of round tube under the unit to ease the moving. Move slowly so that the force is balance.

support wood

Transporting figure

chiller

round steel tube

13.2.1 CraneIt is advised to do the lift job by professional lifting company according to the weight of the unit

13.2.2 Correct way to liftUse the lifting holes and spreader bar to avoid damage to the unit.(refer to the figure)

UAY/UAA050~185 lifting figure

13. Lifting13.1 Preparation

13.2 Unload


50

The length and weight of UAY/UAA200~380 is larger, which brings trouble to lift the unit. The quantity of the hoist cables and lifting holes can be decided as real condition. Refer to the following figure.

UAY/UAA200~260lifting figure UAY/UAA285~380lifting figure

13.2.3 Correct way to liftSet up a guard when do the lifting and it’s not allowed for non-missionary to come in;

Don’t stand under the unit for safety while lifting.


51

The installation site should not be exposed to straight sunshine, and sufficient fresh air is necessary to cool the condenser. Enough clearance is needed to ensure the air circulation and service access. The unit should be installed on the base of floors or roofs which is sufficiently robust to withstand the operating weight of unit. Please refer to the catalogue for the operating weight of unit. Accessing ladder should be equipped when the unit is too high for operation and servicing.

BaseThe base should be strong enough to withstand the weight of running equipment. The base could be on the first floor or on the top. Refer to the nameplate to check the operating weight. If the base is too high, it’s not convenience for service people to do the maintenance. The ladder can be applied if the base is high. The base should be strong enough to endure the weight of the servic people.

Layout of the baseThe unit must be installed on the base that is strong enough. It’s recommended to use concrete slab as the base. Besides, don’t fix the base with the building base together to escape the spread of the noise.

There’s installation hole on the base so that the unit can be fixed with base by screw.

When layout the base, take care that the unit isn’t crashed by person. Lock the inspection door. And refer to local installation regulation department.

Layout of the top buildingThe unit must be installed on the base on the top floor that is strong enough. Don’t cause any damage to the top. Ask for advice from installation engineer. There must be beam, rubber, cork or other anti-vibration equipment on the base to escape the spread of vibration.

InstallationAnti-vibration spring is installed referring to the base drawing. Don’t release and adjust the screw when do the installation.

Wiring ConnectionFactory has already finished the wiring on all the control connection;

Wiring on job-site---Must follow the NEC and local regulations. Fuse switch and terminal connection are available;

Others---Contact for chilled water flow switch ,pump and alarm.

14. Installation


52

14.1.2 Correct way to liftElevate the installation height of the unit( unit base is recommended 1m higher than the highest accumulated snow.)

Snow

ac

cum

ulat

ion

size

Snow

ac

cum

ulat

ion

size

Incorrect Correct

14.1.3 Don’t install unit at places where snow will be accumulated.

Incorrect

14.1.1 Don’t install the unit under the eaves.

Incorrect Correct

14.1 Refer to the following items if the units are installed where there’s plenty of snow:


53

3500

1500

1500

Leng

thw

ays

layo

ut

3500

3500

1500

1500

1500

1500

Late

ral l

ayou

t

1500

1500

14.2 When two or more units are positioned side by side, it’s recommended that follow the below figure to do the installation:


54

After the unit installation, the piping installation begins. It’s advised to follow the installation regulation so that installation of hydraulic system is efficient. There should be no dust in the piping. All the piping should follow the local regulation and rules.

Since the bends, three-way joints and valves will affect the performance of water pump, all piping should be as straight and simple as possible;

It is recommended to apply manual shut-off valve on all piping for maintenance;

Draining pipe should be installed at the lowest point of water circuit in order to drain out the evaporator and pipeline;

Air relief valve should be installed at the highest point of water circuit in order to remove the air from hydraulic system. Thermal insulation is not needed for draining pipe and air relief valve for easy service;

According to the requirement of the project, the design of evaporator should follow the items below:

1) The outlet of the pump should be connected with the inlet of the evaporator. The inlet of the pump should be entering water tube, not evaporator

2) A more than 25 meshes strainer must be installed at the inlet of evaporator.

3) The chilled water pipe must be cleaned completely by bypass. It’s prohibited to use shell and tube evaporator to clean the pipe.

4) It is recommended that thermometer and pressure gauge be installed at the inlet and outlet of water exchangers for easy service.

5) Chilled water pipe outdoor should be covered with electric heater, and with heat insulation to prevent freezing or dew under low temperature.

6) A flow switch must be applied at the outlet of evaporator. The minimum length of straight pipeline on both sides of flow switch should be more than five times of pipe diameter.

Warning: Water flow can't be used for Switch ON/OFF. It’s a safety switch.

14.3 Hydraulic System Installation


55

Before the starting, do the following examination

14.4.1 Hydraulic systemExam all the piping, make sure the piping connection and the direction are correct;

Check the water inlet/outlet connection;

Open all the valves;

Turn on the pump, and clean the pipe. Make sure the pipes are clean;

Check if there’s leakage on the connection. Discharge the air in the system. Hydraulic system should be clean and without rust

14.4.2 Electric and Control systemSwitch off the main power Q10, check all the wiring in the control box;

Check the power that supplies the unit. The voltage fluctuation should be less than ±10% compared with the voltage marked on the nameplate. Phase voltage unbalance should be less than 2%. Make sure the phase frequency is correct;

Make sure the power supply is abundant so that the unit can start under full load;

Make sure all the fuse and wire are all correct size and matched with the units. Complete all the wiring;

Make sure all the accessories and control parts run normally.

14.4.3 UnitMake sure the compressor oil heater power on for 24 hours;

Make sure that all the valve ( shut-off valve ,ball valve on suction line and gas line and so on) are open;

Switch on other external devices, such as pumps;

Check if all the safety device is on initial position and the setting is correct.

14.4 Starting


56

Safety device Type Setting value Applicable modelHigh Pressure cut-out switch PS2-G8A(Alco) ON: 28kg/cm2 All modelsHigh Pressure sensor AKS3000(Danfoss) 27kg/cm2 All modelsLow Pressure sensor AKS3000(Danfoss) 2.9kg/cm2 All modelsOil Pressure sensor AKS3000(Danfoss) High pressure − Oil pressure>1.8kg/cm2 All modelsFreeze-up protection NTC OFF: 3°C ON: 4°C All modelsCompressor Thermal Protector PT1000 110°C All modelsFuse Refer to the below tableCompressorOver current relay

Refer to the below tableFan Motor Over current relay

*When outdoor temp. in lower than 3°C, the unit can not run.

Model No. Safety device Type

050.1

1 Fuse for comp. NH2, GL160A 500V, 03568, WOHER/SIEMENS2 Fuse for T2 4A (PRI.) /8A (SEC.), DELIXI3 Fuse for T3 4A, DELIXI4 Fuse for T3/T4 4A, DELIXI5 Fuse for evap. 8A, DELIXI6 Fuse for dry-fillter SJ-48A

060.1


070.1


080.1


100.1


120.1


135.1


150.1


15. Safty Devices Setting


57


170.1


185.1


200.2

1 Fuse for comp.1 NH2, GL315A 500V, 03574, WOHER/SIEMENS2 Fuse for comp.2 NH2, GL315A 500V, 03574, WOHER/SIEMENS3 Fuse for T2 4A (PRI.) /8A (SEC.), DELIXI4 Fuse for evap. 8A, DELIXI5 Fuse for dry-fillter SJ-48A

220.2


235.2


260.2


285.2


310.2



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330.2


350.2


380.2 (R22 only)


ModelSafety device

Over current relay for compressor Over current relay for fan motor

050.1 LR2-D3363C,Schneider LRD10KN×4,Schneider




100.1 LR9F5369C,Schneider LRD10KN×8,Schneider






200.2 LR9F5369C×2,Schneider LRD10KN×14,Schneider

220.2 LR9F5369C+LR9F5371C,Schneider LRD10KN×15,Schneider





330.2 LR9F5371C+LR9F7375C,Schneider LRD10KN×19,Schneider




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If the chiller is faulty, it is recommended to check on the following points.

Trouble Probable Cause Remedy

Compressor is unable to start

1. Main switch is not closed2. Fuse is blown, and circuit switch is not closed3. Malfunction of contactor or solenoid4. Incorrect order of three-phase input5. Shutdown due to safety device protection6. Malfunction of motor7. Loose wire

1. Close switch2. Check if circuit and motor coil is grounded,

check for overload (after troubleshooting), replace fuse or close switch, check for looseness or corrosion at the joint section.

3. Repair or replace4. Put phases in order.5. Determine the type and cause of shutdown,

and eliminate the malfunction before restoring safety switch.

6. Check for disconnection, short-circuit or burnout of motor.

7. Check all wire terminals, tighten wire terminal bolt

8. Reset

Compressor is unable to operate but makes sound

1. Wiring mistake2. Low voltage3. Damage of compressor

1. Check and reconnect wire2. Check supply voltage3. Replace

Compressor stops and starts again

1. Voltage drop on start-up different2. Lack of refrigerant

1. Check voltage and power line

2. Check for leakage, repair and add refrigerantCompressor makes abnormal sound and vibrates

1. Large volume of refrigerant entered to the compressor

2. Damage of compressor

1. Check setting of expansion valve2. Replace

High discharge pressure1. Non-condensable gas in the system2. Overcharged refrigerant

1. Discharge non-condensable gas2. Withdraw surplus refrigerant

Low discharge temperature

1. Improper adjustment of condensing temperature

2. Suction shut off valve is not fully opened3. Shortage of refrigerant4. Compressor is not loaded while operating

1. Check the control and operation process of condenser

2. Open the valve3. Check for leakage, repair and charge

refrigerant4. Refer to the following correct procedure for

handling low suction pressure5. Refer to the following method for handling

failure of compressor loading

High suction pressure1. Excessive water inlet temperature2. Excessive liquid supply of expansion valve3. Compressor is not loaded while operating

1. Decrease load or add equipment2. Check EXV setting3. Refer to the following method for handling

failure of compressor loading

Low suction pressure

1. Shortage of water flow2. Low condensing temperature3. Evaporator is dirty4. Adjustment of expansion valve is incorrect5. Liquid supply pipe drying filter is clogged6. Compressor is unable to unload

1. Check for leakage, repair and charge refrigerant

2. Chemical cleaning3. Replace4. Check EXV setting5. Check and adjust condensing temperature6. Refer to the following method for handling

failure of compressor unloading7. Adjust water flow

Compressor is unable to load and unload

1. Failure of capacity control2. Improper control setting

1. Replace2. Reset

Short interval between compressor loading and unloading

1. Abnormality of water temperature controller2. Shortage of water flow, fast water flow

fluctuations

1. Replace2. Adjust water flow

Insufficent oil pressure 1. Oil filter is clogged2. Liquid refrigerant entered to the oil tank3. Low oil level4. Damage of bearing5. Deficient water flow

1. Clean,replace2. Check oil tank heater operation expansion

valve setting.3. Replace compressor4. Add oil5. Adjust expansion valve6. Adjust water flow

Oil shortage 1. Lack refrigerant2. Damage of oil tank heater

1. Check for leakage and repair, add refrigerant, check oil foaming.

2. Replace oil seperator heaterMotor overload relay is disconnected or fuse is blown

1. Low voltage 2. Damage of motor coil3. Loose power cable4. High condensing temperature5. Voltage imbalance due to malfunction of power

cord

6. High ambient temperature of overload relay

1. Check supply voltage for excessive voltage drop

2. Replace compressor motor3. Check all joints and tighten4. Refer to the method for handling high discharge

pressure5. Check supply voltage, and start compressor

only after Power Supply is corrected.6. Improve ventilation to reduce heat

Compressor thermo- sensitive protection switch is turned OFF

1. Operating conditions are out of scope design 1. Make improvement to control the conditions within permissible range

16. Trouble and Action


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General Before shipment a full test will be held to avoid any losses.Chiller will be delivered to the job site completely assembled and charged with refrigerant and oil.Comply with the manufacturer instructions for rigging and handling equipment.The unit will be able to start up and operate as standard at full load and outside air temperature from °C to °C with an evaporator leaving fluid temperature between °C and 15 °C.

Performance Number of unit:Cooling capacity for single air-cooled water chiller: kWPower input for single air-cooled water chiller: kWEvaporator entering water temperature: °CEvaporator leaving water temperature: °CEvaporator water flow: L/minOutside working ambient temperature: °CThe unit should work with electricity at V ±10% , 3ph, 50Hz without neutral and shall only have one power connection point. The control circuit voltage shall be 24V maximum, supplied by a factory-installed transformer.The electrical power absorbed should not exceed kW

Unit description Each chiller consists of multiple semi-hermetic rotary screw compressor, direct expansion shell & tube evaporator, air-cooled condenser section, control system and all components necessary for safety.The units will have 2 independent refrigerant circuits, and the respective electronic microprocessor will allow the starting of the compressors. Each chiller will be factory assembled on a robust base-frame made of zinc coated steel, protected by an epoxy paint.

Noise level and vibrations

Sound pressure level at 1 meter distance in free field, semispheric conditions, shall not exceed dB(A).The sound pressure levels must be rated in accordance to ISO 3744.Other types of rating are unacceptable. Vibration level should not exceed 2mm/s.

Dimensions Unit dimensions shall not exceed following indications:Unit length mmUnit width mmUnit height mm

Compressors The compressors shall be field serviceable, semi-hermetic, single-screw type with one main helical rotor meshing with gate-rotor. The gate-rotor will be constructed of a carbon impregnated engineered composite material. The gate-rotor supports will be constructed of cast iron.The compressor shall be provided with an automatic spring return of capacity control valve to the minimum load position to ensure compressor starting always at minimum motor load, with minimum in-rush current.The oil injection shall be used in order to get high EER (Energy Efficiency Ratio) also at any load conditions.

The compressor's oil cooling must be realized, when necessary, by liquid injection. External dedicated heat exchanger and additional piping to carry the oil from the compressor to heat exchanger and vice versa will be not accepted.The compressor shall be provided with an integrated, high efficiency, cyclonic type oil separator and with built-in oil filter.The compressor shall be direct electrical drive (2950 rpm @ 50Hz), without gear transmission between

Refrigerant system differential pressure shall provide oil flow through service replaceable, and cartridge type oil filter internal to compressor.Refrigerant system differential pressure shall provide oil injection on all moving compressor parts to correctly lubricate them.

17. Guide Specifications


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the screw and the electrical motor.The motor's compressor shall be provided with star/delta start (D/Y) as standard.The compressor casing shall be provided with ports to realize refrigerant economizer actions. Shall be present two thermal protections realized by temperature sensors: one is to protect motor temperature and the other against high discharge gas temperature.The compressor shall be equipped with an electric oil-crankcase heater.

Regulation of cooling capacity

Each unit will have a microprocessor for the control of compressor slide valve's position.

Step unloading unacceptable because of evaporator leaving water temperature fluctuation and low compressor's efficiency at partial load.The system shall stage the unit based on the leaving evaporator water temperature that shall be controlled by a PID (Proportional Integral Derivative) loop.

Evaporator The units shall be supplied with shell and tubes counter-flow evaporator with single pass refrigerant. It will be refrigerant direct expansion type with refrigerant inside the tubes and water outside (shell side). It will include carbon steel tube sheets, with straight copper tubes internally wound for higher efficiencies, expanded on the tube plates.The external shell shall be linked with an electrical heater to prevent freezing down to -15 °C ambient temperature, commanded by a thermostat and shall be insulated with flexible, closed cell polyurethane insulation material (20mm thick). The evaporator will have 2 circuits, one for each compressor and shall be single refrigerant pass.The water connections shall be VICTAULIC type connections as standard to ensure quick mechanical disconnection between the unit and the hydraulic network.

Condenser coil The condenser coils are constructed with internally finned seamless copper tubes of a "W" shape and arranged in a staggered row pattern and mechanically expanded into lanced and rippled aluminum fins with full fin collars for higher efficiencies. The space between the fins are given by a collar that will increase the surface area in connection with the tubes, protecting them from ambient corrosion.The coils will have an integral sub cooler circuit that provides sufficient sub cooling to effectively eliminate the possibility of liquid flashing and increase the unit's efficiency of 5-7% without increasing in power absorption.The condenser coil shall be leak-tested and submitted to a pressure test with dry air.The total coil surface area will be designed in order to have an air velocity not higher than 3.05m/sec.

Condenser fans The fans used in conjunction with the condenser coils, shall be helical type with aerofoil blades for higher efficiencies and lower noise. Each fan shall be protected by a fan guard.The air discharge shall be vertical and each fan must be coupled to the electrical motor, supplied as standard to IP54 and capable to work to ambient temperatures of -40°C to +55°C.They shall have individual overload protection via a disconnect switch.

Refrigerant circuit The unit must have refrigerant circuits completely independent of each other with one compressor per circuit.Each circuit shall include: thermostatic expansion device, compressor discharge shut-off valve, a liquid line shut-off valve with charging connection, replaceable core filter-drier, sight glass with moisture indicator and insulated suction line. Suction line shut-off valve should be available as option.

The capacity control shall modulate slide valve's capacity from 100% to 25% for each compressor (from 100% down to 12,5% of full load for unit with 2 compressors). The chiller shall be capable of stable operation to a minimum of 12,5% of full load, without hot gas bypass.


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Hydraulic kit options (on request)

(Available on unit from UAA 070.1 FST 022/407~UAA 120.1 FST 022/407)The hydraulic module shall be integrated in the chiller chassis without increasing its dimensions and include the following elements: centrifugal monocle water pump with three-phase motor equipped with internal over-temperature protection, safety relief valve, filling kit.The water piping shall be protected against corrosion and equipped with drain and purge plugs. The customer connections shall be Victaulic connections. The piping and the water pump shall be fully insulated to prevent condensation (pump insulation using polyurethane foam, protected by aluminum panels). Electric resistance heaters shall guarantee Frost protection down to -20°C.

Control panel

Compressor contactor sequence will be star/delta type.Power and starting controls should include fuses and contactors for each compressor motor coil and fan motors. Operating and safety controls should include energy saving control; emergency stop switch; overload protection for compressor motor; high and low pressure cutout switch (for each refrigerant circuit); anti-freeze thermostat; shut off switch for each compressor.All of the information regarding the unit will be reported on a display and with the internal built-in calendar and clock that will switch the unit ON/OFF during day time all year long.The following features and functions shall be included:

Soft load function to prevent the system from operating at full load during the chilled fluid pull down period;Password protection of critical parameters; Start-to-start and stop-to-star timers to provide minimum compressor off-time with maximum motor protection;Communication capability with a PC or remote monitoring;Discharge pressure control through intelligent cycling of condenser fans;Lead-lag selection by manual or automatically by circuit based on run hours;Double set point for glycol unit version;Scheduling via internal time clock to allow programming of a yearly start-stop schedule accommodating weekends and holidays.

Display Capabilities The controller as a minimum shall be capable of monitoring and displaying the following data:

No. Analogue Inputs (AI) No. Digital Inputs (DI)

1 Entering Evaporator fluid Temp. 1 Control switch one per comp.

2 Leaving Evaporator fluid Temp. 2 Evaporator water flow switch

3 Outside Air Temp. 3 Phase monitor

4 Not used 4 Double Set point (Ice Mode)

5 Discharge Press., one per comp. 5 High Press. Switch, one per compressor

6 Discharge Press., one per comp. 6 High Press. Switch, one per compressor

7 Setpoint Override (Set point Reset) 7 Low Press. Switch, one per compressor

8 Demand Limit or Current Limit (Site Selectable) 8 Oil Press. Switch, one per compressor

9 % Capacity Signal, one per comp. 9 Transition Fault, one per compressor

10 % Capacity Signal, one per comp. 10 Discharge Temp. Sensor, one per comp.

11 External Alarm

Condensing pressure control

The units will be provided with an automatic control for condensing pressure, ensuring a proper condensing pressurethe. Fan speed control, allows unit's operation with very low ambient temperature down to -15°C.

Automatic compressor unloading, prevents the shutdown of the refrigerant circuit (shutdown of the unit) due to a high-pressure fault.

Unit control system should be centrally located in an electric panel (IP 54). Power and controls should be separated and operating in different compartments of the same panel.

Chilled water temperature reset, controlled from the return water temperature or through a remote 4-20 mA DC signal or external ambient temperature;

While utmost care is taken in ensuring that all details in the publication are correct at the time of going to press, we are constantly striving for improvement and therefore reserve the right to alter model specifications and equipment without notice. Details of specifications and equipment are also subject to change to suit local conditions and requirements and not all models are available in every market.

Air Cooled Single Screw Chiller/ Heat Pump

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