YCAB_man

Liquid Chiller / Heat Pump YCAB-B Air Cooled-Scroll Hermetic

Installation, operation and maintenance manual FORM NO.: YCAB-B-01IOM (0405)

License No.: XK06-135-00028

Air cooled-scroll hermetic Table of contents chiller/heat pump YCAB-B

Table of contents

Foreword .................................................................................................................... 3

Section 1 Unit introduction ............................................................................................................... 4 General introduction........................................................................................................................................ 5 Nomenclature .................................................................................................................................................. 5 Unit performance data..................................................................................................................................... 5 Component description ................................................................................................................................... 6 Operational limitations .................................................................................................................................. 6 Options ............................................................................................................................................................ 7

Section 2 Unit outline and installation requirement ............................................... 8 Overall dimension and installation size........................................................................................................... 9 Unit layout clearance requirement ................................................................................................................ 11 Installation check list..................................................................................................................................... 12 Unit installation location ............................................................................................................................... 12 Shock absorber installation ........................................................................................................................... 13 Connection to chilled water pipe................................................................................................................... 14 Water treatment ............................................................................................................................................. 16 Water pressure drop of Heat exchanger......................................................................................................... 16 Air pipe.......................................................................................................................................................... 17

Section 3 Unit control and maintenance ............................................................... 18 Electrical connection diagrams ..................................................................................................................... 19 Safety precautions ......................................................................................................................................... 27 Wiring requirements...................................................................................................................................... 27 Operation notes ............................................................................................................................................. 27 Controller description.................................................................................................................................... 28 Feature of control system .............................................................................................................................. 29 Data sheet ...................................................................................................................................................... 31 Interface description...................................................................................................................................... 33

Air cooled-scroll hermetic Foreword chiller/heat pump YCAB-B

Foreword This manual contains all the information necessary for correct installation, commissioning, startup and maintenance.

Safety warning This product contains pressurized refrigerant, moving parts and electrical components, which are dangerous and might cause injury to human body. For the sake of safety, prior to equipment movement or its various operations, please carefully read this manual. All the operations can only be carried out by the technical personnel qualified for this operation. Such personnel must have professional tools, wear proper protection clothing and take necessary safety actions. This manual is designated to provide information required for operation of this unit by professional personnel.

Inspection When unit arrives, please immediately check the unit for any possible damages that may happen during transportation. It should be noted on the freight bill of all the obvious damages. Then make a claim for compensation as indicated in the note. If the damages are on the part other than the surface, please immediately contact local York maintenance team for service.

Storage If the unit is planned to be stored for some time before installation, please take necessary measures against any damages, corrosion or abrasion.

1. All the connections like water pipe connections must be sealed properly.

2. Temperature for storage area must not exceed 45�

C and storage area must be kept away from direct sunshine.

3. Fan cooled coil on the unit should have necessary covering against fins rusting; especially it cannot be stored in the open air at construction site.

4. To minimize the possibilities for unexpected damages (like damages caused by falling objects or collision) try to store the unit in the places where there is least number of various activities.

5. Remove the key to the electrical control panel and give it to site responsible person for care.

6. During storage, check the unit periodically.

Symbols used in this manual

Warning: Be sure to follow the instructions in this warning. Otherwise, it might cause injury to the personnel

Note: Be sure to follow the instructions in this warning. Otherwise, it might cause damage to the unit.

Warranty is subject to following conditions: � Installation of such equipment must be carried out by the maintenance people authorized by York or qualified people who have experience with installation and maintenance for liquid chillers. Whilst installation, relevant regulations must be followed, especially the electrical wiring or other safety components (like pressure relief valve) � Startup of the unit must be carried out by professional maintenance people from York service center or the professional from designated professional companies. � Excessive voltage over operation range will cause damage to the components of the unit. Prior to installation, make sure all the switches for this unit must be in OFF position. � Only genuine parts and accessories supplied by York can be used. � Operations and maintenance specified in this manual must be strictly carried out to the time period and frequency outlined in this manual.

�Any of above violations will automatically make the warranty null.

All the pictures and information contained in this manual are only for reference.

Manufacturers have rights at any time to make necessary modification due to sales or production reasons without prior notice.

After reading this manual, please keep it in a proper way in case of need in the future. Also please show this manual to other operators for reference.

Air cooled-scroll hermetic Unit introduction chiller/heat pump YCAB-B

Section 1 Unit Introduction

General introduction York air cooled-scroll hermetic liquid chiller / heat pump YCAB-B provides cooling water/hot water to the centralized air-conditioning equipment or air terminal device. This unit is completely independent integrated unit, which is designed for outdoor (roof or floor) installation. Each unit is composed of scroll compressor, air-cooled condenser, plate type or shell-tube type evaporator and microcomputer control center. They are all mounted on the base made out of shaped steel.

Table 1.1 Performance Data

Compressor Power input Compressor

Cooling capacity

Heat capacity Qty.

Cooling Heating Fan

Unit capacity control Model

Set kW kW kW % YCAB100RB50B 96 99 Scroll 2 20.4x1+12.3x1 20.1x1+12.1x1 1.1x3 100-63* YCAB130RB50B 120 124 Scroll 2 20.4x2 20.1x2 1.1x3 100-50 YCAB150RB50B 145 149 Scroll 2 26.0x2 25.6x2 1.5x3 100-50 YCAB200RB50B 199 205 Scroll 4 20.5x2+12.3x2 20.2x2+12.1x2 1.1x6 100-69-50-19** YCAB250RB50B 250 258 Scroll 4 20.5x4 20.2x4 1.5x6 100-75-50-25 YCAB100SB50B 101 Scroll 2 20.4x1+12.3x1 1.1x3 100-63* YCAB130SB50B 126 Scroll 2 20.4x2 1.1x3 100-50 YCAB160SB50B 152 Scroll 2 26.0x2 1.1x3 100-50 YCAB210SB50B 209 Scroll 4 20.5x2+12.3x2 1.1x6 100-69-50-19** YCAB270SB50B 263 Scroll 4 20.5x4 1.1x6 100-75-50-25 YCAB330SB50B 324 Scroll 4 25.0x4 1.5x6 100-75-50-25

Condenser Evaporator Unit overall dimensions Weight

Air flow Rated

water flow

Water pressure

drop Length Depth Height Shipping Operating Model

m3/h kPa

Water connector i/o

mm mm mm kg kg YCAB100RB50B V 15876x3 plate 16.5 99 G2-1/2" 3271 1060 2358 1336 1355 YCAB130RB50B V 15876x3 plate 20.6 161 G2-1/2" 3271 1060 2358 1430 1453 YCAB150RB50B V 17380x3 plate 24.9 222 G2-1/2" 3271 1060 2358 1584 1614 YCAB200RB50B W 15876x6 shell-tube 34.2 15.7 6" 3271 2038 2358 2818 2968 YCAB250RB50B W 17380x6 shell-tube 43.0 17.7 6" 3271 2038 2358 2926 3076 YCAB100SB50B V 15876x3 plate 17.3 110 G2-1/2" 3271 1060 2358 1224 1243 YCAB130SB50B V 15876x3 plate 21.6 163 G2-1/2" 3271 1060 2358 1306 1331 YCAB160SB50B V 15876x3 plate 26.1 233 G2-1/2" 3271 1060 2358 1490 1520 YCAB210SB50B W 15876x6 shell-tube 35.9 17.8 6" 3271 2038 2358 2664 2764 YCAB270SB50B W 15876x6 shell-tube 45.2 19.8 6" 3271 2038 2358 2810 2910 YCAB330SB50B W 17380x6 shell-tube 55.8 30.2 6" 3271 2038 2418 3298 3428

Note: Above datasheet are standard working conditions based on GB18430.1

Cooling mode under standard working conditions: cooling water in/out temperature 12�

, coil air inlet temperature 35�

Heating mode under standard working conditions: hot water in/out temperature 40�

/45�

, coil air inlet temperature 7�

YCAB100-160 water pressure drop includes built-in water filter, water flow switch and plate heat exchanger

*/** The unloading of compressor depends on running time of each compressor and has no fix sequence, so unit capacity

control could be different from above sheet.

Nomenclature

YC A B 130 S B 50 B

York liquid chiller

Air cooled Scroll compressor

Nominal cooling capacity KW S Liquid chiller

R heat pump

B Refrigerant R407C 50 380V 3N~50Hz

B Design serial

General comments York air cooled-scroll hermetic liquid chiller / heat pump YCAB-B is assembled by the factory. All relevant refrigerant pipeline and internal wiring are already connected for ease of installation on site. For normal operation, simply connect water supply, power supply and control circuit.

Each unit has been strictly tested at factory with pressure, and after evacuated, each unit is filled out with R407C refrigerant and lubricant. Unit has been tested to make sure cooling system and control function are in normal operation.

Unit has been durably constructed with galvanized steel framework. Each part has been treated with zinc phosphate followed by powder polyester. Unit has gray surface. Lifting hole for lifting lug for containers and installation holes for shock absorber are all available on the framework.

Limitation to operation Standard power supply is 380V 3N~50Hz, min. allowable voltage is 342V, max. allowable voltage is 418V.

Temperature range for unit working environment At max. cooling At min. cooling At max. heating At min. heating

-10�

Water temperature range Control modes can be available for inlet and outlet temperatures for unit

Water outlet temperature—cooling: min. 5�

, max: 12�

; heating: min. 40�

, max. 50�

Water inlet temperature—cooling: min. 7�

, max: 17�

; heating: min. 35�

, max. 40�

(Note: If customers request the unit to be running under the condition that water outlet temperature is lower than above min. values, please propose such request to your distributor or York service center. Do not put unit into such operation before necessary protection measures are in place.)

Compressor System adopts 2-3 serial connected Maneurop scroll compressors. Compressor can be available with multi-volume regulator. The refrigerant steam will cool down motor of the compressor. Winding for each phase is equipped with PTC temperature sensor, and the sensors send heat signal to the protection module of motor to prevent overheating.

Note: Be sure to use York specified lubricant for the compressor. Incorrect lubricant injection will automatically cause the warranty invalid.

Evaporator Single system unit (YCAB100, 130, 150, 160SB/RB50B series) adopts plate heat exchanger from ALFALAVAL for the evaporator, which is manufactured, tested and accepted in accordance with “Plate heat exchanger for cooling application” (JB/8701-1998). Design pressure is 2.8MPa for refrigerant side and 1.0MPa for waterside. Evaporator is wrapped up with 19mm rubber-plastic heat insulation material.

Double system unit (YCAB200, 210, 250, 270, 330SB/RB50B series) adopts shell-tube heat exchanger for the evaporator, which is manufactured, tested and accepted in accordance with “Shell-tube heat exchanger” (GB151-1999) and “Pressure vessel for cooling system” (JB6917-1998). Design pressure is 2.8MPa for refrigerant side and 1.0MPa for waterside. Refrigerant side is at tube side and cooling water at shell side with baffle plate. Heat exchanger is constructed with highly efficient seamless copper tubes with internal threads. Evaporator is wrapped up with 19mm rubber-plastic heat insulation material. Each refrigerant loop is protected with 350psig safety valve (Heat pump unit is protected with 400psig safety valve)

Condenser Coil- “V” or “W” shaped, copper tubes with internal thread and high efficient aluminum fins are connected through mechanical expansion.

Vane of the axial fan is made of LY12 aluminum alloy with sprayed plastic treatment on the surface. The fan is directly connected and driven by motor. Exhausts the air upwards. Vanes have been tested through dynamic and static balancing.

Electric motor-hermetic three-phase air-cooled squirrel-cage motor, with built-in overheating protection, aluminum cast case.

Refrigerant loop Each unit is composed of 1~2 independent refrigerant loops and each loop includes: liquid refrigerant stop vale, filter-drier, solenoid valve (single cooling), four-way valve (heat pump), accumulator (heat pump), sight glass, thermal expansion valve, discharge and suction pressure switches. Cooling system has been tested at factory on pressure and leakage. System has been evacuated and filled with R407C refrigerant. Liquid pipes after the expansion valve and all suction pipes are wrapped up with rubber-plastic heat insulation material.

Microcomputer control center All the control and startup devices have been installed and tested at factory. Control panel includes power supply, control center and controlling components, which are installed into a galvanized steel box. Control panel is composed of two independent parts: electric motor starter and unit controller. Control panel is installed with hinged door. Box design complies with IP55 for rain and dust proof. Its surface is gray painted.

Unit has following control functions:

LCD dot matrix display 4 line 15-row characters display

Operation status display Unit operation data display-cooling/hot water inlet/outlet temperature, environment temperature, and suction and discharge pressure for each system

Malfunction display- when unit malfunctions, system will initialize auto test and display the causes, which will be alarmed with buzzer and indicators. All the malfunction records can be traced back.

D1 and D0 status display-can display the status of both input (D1) and output (D0) for different modules.

Control protection function This unit is featured with following control protection functions:

Current break protection Remote-locked isolator

Prevention of frequent compressor startup Balanced compressor operation

Compressor overload protection Fan overload protection

Protection against excessive discharge pressure protection against too low suction pressure

Protection against low water temperature protection of power supply

This unit also has other control functions, like �

Remote control ON/OFF Timer

Energy control manual testing

Limitation to operation hot plug system

Network Reserved standard RS-485/RS232 serial ports

Following options are available from this unit: Coil protection �

Standard unit adopts coil out of copper tube and aluminum fin.

It is suitable for the application near coast, under salt spray condition and other cases where corrosion is easily available. Three protection alternatives are available from the unit:

Black fin coil-aluminum fin for the coil is coated with black epoxy resin.

Phenolic resin coated coil- aluminum fin for the coil is coated with phenolic resin

Copper fin coil- unit adopts copper fin (this is not suitable for the site where there is acid rain.)

Unit outline and Air cooled-scroll hermetic installation requirement chiller/heat pump YCAB-B

Section 2 Unit outline and installation requirement

Unit overall dimension 1:

Overall dimension for models YCAB100SB50B, YCAB100RB50B, YCAB130SB50B, YCAB130RB50B, YCAB150RB50B

and YCAB160SB50B

Figure 1

A B C D E F G H I J K L M N

YCAB100~160SB/RB50B �� Unit mm

Notes:

1. Adoption of spring shock absorber will increase the installation height for unit by about 135mm.

2. Inlet and outlet water pipes have connector with internal threads:G2-1/2”.

3. Above drawing is only for reference. Please refer to practical products for detail of the internal structure.

Water outlet

Scaling down drawing in direction a

Shock absorber installation holes

Water Inlet

Unit overall dimension 2: Overall dimension for models YCAB200RB50B, YCAB210SB50B, YCAB250RB50B and YCAB270SB50B

Figure 2

A B C D E F G H I J K L M

YCAB200RB50B !�"�#�#�#�"�!%$&#�!�'%$(#%)�*�#�"�+�$,'%*-'�.�*�"�"/!%*-0,.�.�"�"�0�!�01'�0%$2*-!�.3*-!�.YCAB210SB50B !�"�#�#�#�"�!%$&#�!�'%$(#%)�*�#�"�+�"�'%*-'�.�*�"�"/!%*-0,.�.�"�"�0�!�01'�0%$2*-!�.3*-!�.YCAB250RB50B !�"�#�#�#�"�!%$&#�!�'%$(#%)�*�#�"�+�$,'%*-'�.�*�"�"/!%*-0,.�.�"�"�0�!�01'�0%$2*-!�.3*-!�.YCAB270SB50B !�"�#�#�#�"�!%$&#�!�'%$(#%)�*�#�"�+�"�'%*-'�.�*�"�"/!%*-0,.�.�"�"�0�!�01'�0%$2*-!�.3*-!�.YCAB330SB50B !�"�#�#�#�"�!%$&#%)4.�$(#%)�*�#�"�+�"�'%*-'�.�*�"�"/!%*-0,.�.�"�"�0�!�01'�0%$2*-!�.3*-!�.

Unit 5 mm

Notes:

1. Adoption of spring shock absorber will increase the installation height for unit by about 135mm.

2. Inlet and outlet water pipes have tube flange connector: SO 150-2.0 RF HG20615.

3. Above drawing is only for reference. Please refer to practical products for detail of the internal structure.

Scaling down drawing in direction a

Shock absorber installation holes

Water outlet

Water Inlet

Installation clearance illustration 1

Figure 3

Installation clearance illustration 2

Figure 4

Clearance (mm)

A B C D E

2450 1525 1525 2450 15000

Above installation clearance requirements apply to all YCAB-B units

Requirements for location and clearance 1. To prevent air return in the condenser and avoid malfunction, York recommends min. unit clearance, as illustrated in

figure 3 and figure 4. If units are installed in parallel, make sure the min. clearance between two adjacent units is 3600mm. If such clearance cannot be guaranteed, air that flows through the coil will be limited or the exhaust air will return. As a result, performance of the unit may be affected or malfunction will be the case.

2. To ensure enough airflow to condenser coil, what needs to be put into consideration is the influence by the downward airflow from surrounding high-rise buildings on the exhaust air from the unit.

3. If the unit is installed at the location where there is dynamic airflow, like exposed roof, lower wall or louver can be considered as measures against the interference on air intake by disturbed airflow. If lower wall is required for unit, make sure its height should never exceed the unit. If louver is adopted, the static pressure outside the fan should be more than total loss of the static pressure. Clearance between unit and lower wall or louver still needs to conform to the min. installation clearance required for the unit.

Air flow in

Air flow out

Air flow in

Air flow out

4. If the unit is to be operated in winter, plus the installation location has snow already, unit needs to be elevated and higher

than snow height so that air can smoothly flow through the coil.

Installation check list Prior to installation, please check the unit for following:

1. Check the unit for any transportation damage

2. Prior to connection to water pipes, do not remove protective cover from flange or threaded connector. Check to insure the pipeline is clean.

3. Connect the pipeline in a correct way.

4. Check the installation and operation to make sure they meet the requirements for running the unit.

Following is the installation procedure:

Handling This unit is shipped as completely assembled unit containing full operating charge, and care should be taken to avoid damage due to rough handling.

Unit is shipped without wood pack, unless Sales Order specifies.

When lifting, make sure the lifting hook is in close contact with the holes in base rails to prevent the lifting chains damaging the unit.

Inspection Immediately upon receiving the unit, it should be inspected for possible damage, which may have occurred during transit. If damage is evident, it should be noted on the carrier’s freight bill. A written request for inspection by the carrier’s agent should be made at once.

Foundation The unit should be mounted on a flat and level foundation, floor or rooftop, capable of supporting the entire operating weight of the equipment. See “Unit performance datasheet” for operating weight. If the unit is elevated beyond the normal reach of service personnel, a suitable catwalk must be constructed around the unit. The catwalk must be capable of supporting service personnel and their equipments.

Installation location

Outdoor installation The unit can be installed on the ground or suitable roof where there must be enough airflow. Try to not install the unit on where noise and vibration should be avoided

The unit installation location should be free of direct sunlight, far away from boiler chimney and environment where the aluminum/copper condenser and other copper components will be subject to corrosion.

If the unit is installed at location where unauthorized person can get access to, please arrange safety protections around the unit, like fence, so that artificial or unexpected damage can be avoided or the control panel will not be opened to expose electrical components.

When installed on the ground, steel base of the unit must be mounted on flat and level concrete foundation. Foot-stands of the concrete foundation must extend below the frost earth line. Make sure, unit foundation must not be connected to the main building foundation in case of transfer of noise and vibration.

Mounting holes are provided on unit steel base for firmly bolting unit to foundation.

When unit is installed on the roof, such roof must be capable of supporting the weigh of unit and service personnel. Unit can be mounted on the concrete foundation or steel channel similar to on ground. Holes on steel channel must be coaxial to mounting holes of shock absorber on unit, plus such steel channel must be wide enough for installation of shock absorber.

For any request for special installation location, please consult with construction contractor or building designer or other professionals.

Indoor installation The unit can be installed in the house, but the ground must be flat and be capable of supporting operating weight of unit. Clearance must ensure adequate airflow through coil. Air exhaust pipe should be installed on top of the unit to exhaust the air so that airflow return inside house can be avoided.

Arranging louver on unit house to offer good ventilation is recommended.

Fan required for indoor installation needs to generate airflow with high static pressure. Static outside pressure: 100Pa.

Note: Selection of air exhaust pipe, silencer and louver for incoming air must consider the principle: total static pressure loss of those components will not exceed static pressure outside the fan. If necessary, add air suction and exhaust fans to ensure airflux and avoid cooling capacity loss

For indoor installation, connecting a copper pipe from relief valve of the unit to outside.

Shock absorber installation With the 6 14mm installation holes on the steel base, unit can be bolted on the foundation through spring shock absorbers. For distance between centers of installation holes, please refer figue1 & 2.

YCAB-B air-cooled chiller/heat pump is equipped with spring shock absorber which has compression set of 15~25mm. For installation on the roof of high-rise building or at vibration sensitive area, please consult on selection of shock absorber.

Shock absorber installation procedure:

1. Flatness of concrete foundation must remain within 7 3mm. Lift up the unit about 135mm.

2. Remove the lockup nut off the shock absorber as illustrated in figure 5.

3. Put the unit on the absorbs, and install bolts of the absorber inside the fixing holes on the unit steel base.

4. Put back the lockup nuts on the bolt of absorber and screw them in.

5. Adjust working height of absorber. Screw in leveling nut and adjust the working height to 130mm. Screw in the nuts around one by one to insure working height is the same for all absorbers.

6. When correct working height is reached, tighten the lockup nut.

Note: It is suggested mount the shock absorber on the foundation with two fixation holes. Once unit is located in place on the foundation, never move the connected shock absorbers. Do not tighten the lockup nut before shock absorber is loaded

Figure 5 Shock absorber installation

Lockup nut

Leveling nut

M12 leveling bolt

2-ø13-fixation hole

Water piping connection

Figure 6 Water piping installation

General requirements When the unit has been located in its final position, the unit water piping may be connected. Normal installation precautions should be observed. Piping should be kept free of all foreign matter. All liquid cooler piping must comply in all respects with local plumbing codes and ordinances. 1. Prior to unit operation, run a complete flush to the cooler piping to make sure there is no foreign material left over in the

line. Also be careful to not flush any foreign material into evaporator. 2. Water flow must go through inlet into heat exchanger. If water flow through heat exchanger is in reverse direction, unit

performance will be worse. 3. A water flow switch must be installed in the leaving water piping of the unit to against flow stoppage. There should be a

straight horizontal run of at least 5 diameters on each side of the switch. For installation for water flow switch, please strictly follow “Guideline to water flow switch installation and commissioning”. The unit which uses plate heat exchanger is already equipped with water flow switch, and flow rate & parameters are already set up. Please do not reset the flow rate on site. Neither an extra water flow switch is required. Water flow switch should be connected to control panel through shielded cable (Please refer to electrical connection diagram for more details). Working pressure for water flow switch is 150Psig, connector is 25mmNPT. For shell-tube heat exchanger, after installation of pipeline, adjust the settings for water flow switch till suitable value based on rated water flow for the unit.

4. Water pump installed in the water line needs a starter. Water pump will directly pump the water to heat exchanger. 5. Auxiliary pipe and pipe connector must be supported on separate support, but not on the unit. 6. Pipeline and pipe connectors for heat exchanger must be removable for operation and cleaning, and for inspection of

evaporator connection pipe. 7. On site, install a 40-mesh filter for evaporator (Note: the unit which uses plate heat exchanger is already equipped with

water filter in factory). Water filter should be just ahead of the evaporator and be insulated. 8. Bypass pipe and bypass valve as illustrated in figure 6 must be installed so that it is very convenient for cleaning of

external water system before unit commissioning. During maintenance, inlet/outlet pipe for heat exchanger can be switched off without interference with other heat exchangers.

9. Heat exchanger piping should be connected through flexible connectors in order to against transmission of vibration. 10. For convenience for maintenance, install thermometer or pressure gauge on return and leaving water pipes. Unit is not

equipped with thermometer or pressure gauge. Customers need to buy for themselves. 11. Drain connection should be install at all low points to permit complete drainage of liquid cooler and piping system. A

valve or valves should be installed at the highest point or points in the chilled liquid piping to allow any trapped air to be purged. Vent and drain connections should be extended beyond the insulation to make them accessible.

12. Water pipes within the system, which might be frozen, must be insulated, including the flange of heat exchanger. 13. The chilled liquid lines that are exposed to outdoor ambient should be wrapped with a supplemental heater cable to

protect against freeze-up during low ambient periods. Power supply for heater must be provided with separate fuse. 14. When the temperature is below 0

� and unit stops, liquid chiller must be drained to avoid freezing damage to unit.

Heating pump is not in operation for long time in winter, please also drain away water. If not drain, do not switch off the power supply for the unit. Fan coil terminal units that connect to the chiller should be equipped with three-way valve to ensure water circulation once pump is started.

15. For units in a network, please install the water temperature sensor on the public outlet water line.

Water flow switch

Stop valve Water/air discharge valve Regulating valve Flow meter

Filter Pressure gauge Connector

Water pump

Main pump

Spare pump

Return water

Leaving water

Warning: For water plumbing, including filter and heat exchanger, dreg and water scale will seriously damage heat exchanger. Installer/customers must ensure water quality and no trapped air in water system, as air can oxidize steel parts inside the heat exchanger.

Guideline to water flow switch installation and commissioning 1. Before installation, carefully check the packaging and water flow switch for any damage or deformation. If there is any

problem, please contact manufacturer.

2. Flow switch can be installed on the horizontal pipeline or vertical pipeline in which liquid flows upward. Do not install the flow switch on the vertical pipeline in which liquid flows downward. When installed on vertical pipeline in which liquid flows upward, take into consideration the weight of water.

3. There should be a straight horizontal run of at least 5 diameters on each side of the switch. Make sure liquid inside the pipeline must flow in the same direction as indicated on the switch. Its wiring terminal must be located in an accessible place (Figure a)

4. When installing and wiring, pay attention to following issues:

� Do never touch the bottom plate of flow switch with the spanner. If doing so, flow switch may be failure (Figure b)

� Switch off the power before wiring or commissioning to avoid electric shock or damage to equipment.

� Whilst wiring, do not adjust any other screws except those for micro switch terminal or grounding. Please pay attention, excessive force when wiring on micro switches may result in micro switch displacement and lead to failure. (Figure c)

� Grounding must adopt professional grounding screws. Do not remove or dismantle the screws as want, otherwise it will cause the switch failure.

� Flow switch has been set up with min. flow value before delivery out of factory. Do not adjust the setting to the value lower than factory setup; otherwise it may cause the switch failure. After installation, check the flow switch by pressing on the levers for flow switch. Once there is no click heard after the lever springs back, turn clockwise the adjustment screw until a click is heard.

� Please select flow switch trigger in accordance with rated flux, diameter of leaving water pipe and adjustment range for flow switch trigger (Please refer to the manual) Also make sure such trigger must not touch inside wall of the pipe or other throttles in the pipeline. If doing so, flow switch will not reset as normal.

5. Based on the testing values obtained from flow meter, judge whether flow switch or the system connected to it are functioning or not. That is, if the tested value from flow meter is less than 60% of the rated flux, the flow switch should cut off the power of unit. Observe it for three working cycles, and then capped its cover timely.

Figure 7

Adjustment screw

Installation screw

Water treatment Cooling capacity in performance datasheet is given based on scale coefficient of 0.044m2 � /kW. Dirt, water scale, grease and specific water treatment will cause adverse influence on efficiency of heat exchange and unit performance. Foreign materials inside the water will increase pressure drop inside the heat exchanger, reduce flow rate and cause mechanical damage to pipe clusters of the heat exchanger. Alkalescent water is not recommended. Life of the heat exchanger will be reduced if water contains air. Consultation with water treatment experts is recommended by York to find out what quality for the water will not influence performance of the heat exchanger.

Air-cooled water chiller/Air-source Heat pump Units Water Quality Requirement Tendency

Item Unit Limit Corrosion Scale

PH 8:9 25 ;=< 7.5-8.0 >

SO4-- ppm <100 >

HCO3-/ SO4-- ppm ? 1.0 >

Cl- ppm <50 >

PO4 ppm <2.0 >

NH3 ppm <0.5 >

Free Chlorine ppm <0.5 >

Fe+++ ppm <0.5 >

Mn++ ppm <0.05 >

CO2 ppm <10 >

H2S ppb <50 >

Temperature ; <65 > >

Oxygen content ppm <0.1 >

Total hardness dH 4.8-8.5 >

Note 1. Water quality should be inspected before unit installation and regularly during unit operation. The parameters of water

quality should meet the demand as above form. Once the parameter is over the limit, the heat exchanger will leak for corrosion and is possible to have serious scale formation.

2. When the parameter of water quality in projects that trend to corrosion is over the limit for a long time, the heat exchanger will leak for corrosion. The unit cannot operate normally and use as usal.

3. When the parameter of water quality in projects that trend to scale formation is over the limit for a long time, heat exchanger will have serious scale, which effects heat exchange and drops the cooling (heating) capacity directly.

Users should take on the lost that comes from the unqualified users’ water quality.

Water pressure drop of heat exchanger

@A @B@CB@B@DE@B@FG@B@H @B@IB@B@J @B@KB@B@LB@B@A @B@B@

@GME@ A ME@ CGME@ DBME@ FNME@ H ME@ IGME@ J ME@ KGME@ LGME@ A @GME@OABA ME@PA CGME@OA DBME@OA FNME@PA H ME@OA IGME@

Water flow rate (L/s)

A-YCAB100RB/SB50B B-YCAB130RB/SB50B C-YCAB150RB/160SB50B

Above curve for water pressure drop is for the unit including built-in water filter, water flow switch and heat exchanger

D-YCAB210SB50B, YCAB270SB50B, YCAB330SB50B, YCAB200RB50B, YCAB250RB50B

Pressure drop (kPa)

Water flow rate (L/s)

Pressure relief valve for refrigerant pipeline For sake of safety, pressure relief valve for refrigerant is installed on the suction pipeline for shell pipe heat exchanger. When unit is installed indoor, run a copper pipe from the pressure relief valve to outside.

Air pipe For air exhaust pipe for the fan, recommended section area should be the same as that for air outlet from the fan and min. 1000mm straight pipe piece must be retained against return flow.

Air pipe should be suspended with shock absorber to avoid transmission of noise and vibration to building.

The fan should be connected through flexible connectors with air pipe to avoid transmission of vibration. Flexible connector should not be flexible hose.

Unit is not designated to support the weight of building or air pipeline. Except the 1000mm light air pipe, do not settle other weights on the unit. Air pipe should be installed at proper location with separate support to avoid shearing pressure caused by air flow.

When air pipes of each fan are connected to the general pipeline, a check valve is recommended to avoid air return.

Unit control and operation Air cooled-scroll hermetic chiller/heat pump YCAB-B

Section 3 Unit control and operation

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Unit control and operation Air cooled-scroll hermetic chiller/heat pump YCAB-B Safety precautions 1. Prior to operations, Please read carefully and follow all the “Safety precautions”

2. “Safety precautions” list up all the precautions in relation to safety. Please strictly follow these instructions.

3. Note: Please carefully read all the labels on the control panel.

Wiring requirements

Warning:

Use only the electric components specified by our company. Contact manufacturer or authorized dealer for installation and technical service. If the wiring does not conform to electrical installation specification, it may cause controller to fail or electric shock.

Users should never try to do the repairing themselves. Any improper repair to controller may cause electric shock or damage to the controller. If customers have any request for repair, please contact York service center.

1. No controlling components are required to be added to the control panel (like relay), Power supply or control circuit that is not connected to the control panel is not allowed to run through control panel. Otherwise, electromagnetic interference may cause malfunction or damage to unit or control components. Consequently, warranty will be null.

2. All the cables that are connected to the control panel need separate support. Do not support them on the control panel.

3. High voltage power cable will normally run through control panel. 220VAC also runs through control board. Please separate strong power and weak power when wiring the system. Power cable should be kept 100mm away from signal cable.

4. Unit can only operate with 380V- 3Ph -50Hz, min. allowable power supply is 342V, max. allowable is 418V.

5. All the electrical circuits must comply with local wiring regulations. Proper cables must go through the holes in the bottom of the control panel to the wiring terminals for power supply. According to Chinese standards, customers have the obligations to provide over current protection to the units supplied by York.

6. Warning: All the power supplies connected to the unit must go through a master circuit breaker (not supplied by York) so that when the circuit breaker triggers, all the voltages on the whole circuit for the unit will be released.

7. Note: Use only the correct cables for power supply system for the unit. Unit must use separate power supply system. Unit is prohibited to share power supply with other electrical appliances to avoid overload. Fuse for power supply system and circuit breaker must match up with working voltage and current for the unit.

8. In the control panel, customers need to provide power supply for part of the voltage-free contacts, rated voltage is 220VAC, and rated current is 3A. For the power supply for the voltage-free contact, customers can only take power supply from the master circuit breaker for the whole unit so that when the circuit breaker triggers, all the voltages on the whole circuit for the unit will be released.

9. All the sensitive components (contactors, coil of the relay) that are under the control by York voltage-free contacts must be controlled with standard capacitor suppressor so that electromagnetic interference can be avoided. Consequently, unit and its controller will malfunction or be damaged.

10. All the weak power cables connected to control panel must be shielded cable. Shield layer must be properly grounded. Shield cable must be separate from power cable to avoid electromagnetic interference.

11. Note: Unit must be properly grounded. DO not connect this grounding line with those for gas, fuel lines, water pipe, thunder rod or telephone. Improper grounding might cause unexpected electric shock. Frequently check unit grounding.

Operation notes

1. When operating the unit, do not press the button with sharp tools to avoid damage to controller.

2. Do not twist or pull the electrical cable inside the control panel. Otherwise, wiring may be loose and control system may malfunction.

3. Do not use Benzene, thinker or chemical agents to clean controller or control components. If doing so, system may discolor or malfunction. When cleaning the dirt, please dip the cloth into water with neutral cleaning agent. After the cloth is dry, use if for cleaning. Then use clean and try cloth to clean up controller or control cabinets.

4. Do not exert too much force on the display or connection to avoid color change.

5. ��Warning: strong power is available in the control panel, before the power supply is disconnected from unit, do not touch any other control elements or terminals other than those for the display. If doing so, it might cause human body injury.

Controller description

Display illustration

a. Buzzer hole When system is alarmed for trouble, it will give off “Di-Di-Di”

Pushing ENTER key will “Di”

b. LCD dot matrix display display 4 lines and 15 rows.

c. Functional key ”FUN” and inquiry key “ALARM” Press “FUN” key to manually defrost or force to turn on/off the unit. In the main menu, press “ALARM” key to directly find out trouble. Press it again to reset the trouble and get out of this icon. When there is trouble, press any key to stop the alarm.

d. LED indicators on unit running This includes running indication (RUNNING), trouble indication (ALARM), low temperature, defrost and anti-frozen indication (LOWTEMP), heating indication (STANDBY1) cooling indication (STANDBY2). OUTPUT1-OUTPUT12 are the indicators for each of the compressors under module 1-4#.

e. Startup key “STARY” and stop key “STOP” System can be started and stopped by single key in any interface. Press “START” key, unit will start to run as start setup in the system. Press “STOP” key, unit will run as stop setup in the system.

f. Setup key and selection key Press “MENU” key to come back to upper level menu until system is back at main menu. Then press “ENTER” key to confirm. To change the settings, first come to relevant interface, then press “ENTER” key to make the corrections. “ENTER” key has to be used to confirm selected area.

g. Cursor key Press “pg” key to come do different pages. When system is under setup, use these two keys to correct the figures and move down the white area. Press “tu” key to move the white area advance.

h. RS-485 standard serial communication port

This is the communication port (RJ11) to computer (PC). Communication line can run up to 1200 meters. Computer needs to have conversion port 485/232.

i. RS-485 standard serial communication port This is the communication port (RJ11) to control system (I/O) module. Communication line can run up to 1200 meters.

Figure 5B Port illustration

j. RS-232 standard serial port This is the communication port to computer (PC) or MODEM. System can be connected to public Internet through Modem for remote control. Note: h and j ports can be selected through jumpers inside the unit.

k. Power supply input voltage: 220VAC s 15% Power: < 20W

Features of control system 1. Control mode: one output for water pump and 2~3 scroll compressors for an independent cooling system. 3 condenser

fan for public fan system. 1-8 modules comprise “network of air cooled-scroll hermetic chiller/heating pump”

2. Network group: Local network can be prepared through simple communication setup. Each module can be integrated in to the network once is power up. At the same time, display panel can indicate its address. When one module is powered off, it will not affect other module.

3. Following functions can be realized through controller: remote control, timer ON/OFF, manual and automatic switch between operation mode, automatic trouble diagnosis, handling, auto dial for alarm, manual testing, auto defrost, electrical heating, anti-frozen after work, energy control, running control, load match up, operation limits, Chinese display and hot plug.

4. Working process and functions of the controller meet the requirements of Q/SKCG01-2000 in relation to technical specification and requirement for microcomputer.

5. All the input/output signals and communication data are strong enough against interference so that unit can work in a steady and reliable way: No wrong information, no shaking and temperature will not jump over 1.0 t .

6. Controller has function to prevent accidental or incorrect operation. For example, system will not react if there is trouble.

7. Safety and electromagnetic compatibility comply with applicable national regulations on safety for electric and electrical products and electromagnetic compatibility.

8. Data setup is secured by multi-password, timeout lockup. All the data to be set up have relevant default values. Such default values will come to effect when unit is started for the first time or default values need to be confirmed.

Address configuration for unit combination I/O control panel 1.I/O control board address DIP switch illustration 2. I/O control board address list

Figure 5C Figure 5

Note: DIP switch illustrated in figure is “1” up and “0” down

Figure 5D 1# unit address Figure 5E 2# unit address

Figure 5F 3# unit address Figure 5G 4# unit address

Unit address

Datasheet

Table 5.2 Module combination air-water system data setting sheet

Category Default value Setting range

Leaving water temp. In summer 7.0 u C -20 u C-18.0 u C

Returning water temp. In summer 12.0 u C -20 u C-18.0 u C

Fluctuation range 2.0 u C 1.0 u C-5.0 u C

Leaving water temp. In winter 45.0 u C 35.0 u C-55.0 u C

Returning water temp. In winter 40.0 u C 35.0 u C-55.0 u C

Heating option in auto mode v 20.0 u C 10.0 u C-30.0 u C

Cooling option in auto mode w 25.0 u C 20 u C-40.0 u C

Leaving water temp. required to start the

water pump for anti-frozen

v 4.0 u C 2.0 u C-7.0 u C

Leaving water temp. required to start the

compressor for anti-frozen

v 2.0 u C 1.0 u C-5.0 u C

Leaving water temp. required to stop the

compressor after anti-frozen

w 10.0 u C 5.0 u C-15.0 u C

Operation temperature for electrical heater 35.0 u C 25.0 u C-48.0 u C

Shutoff temperature for electrical heater 40.0 u C 30.0 u C-48.0 u C

Temperature difference when defrost starts 10.0 u C 5.0 u C-20.0 u C

Temperature when defrost stops 20.0 u C 0.0 u C-5.0 u C

Shortest interval between defrost cycles

(ambient temp. over -5 u C)

1800s 600-3600s

Shortest interval between defrost cycles

(Ambient temp. below -5 u C)

1200s 600-3600s

Longest defrost cycle 300s 90-600s

Fan & 4 way-valve start delay after defrost 10s 0-60s

Defrost waiting time 1200s 300-1800s

Oil warm-up startup temp for compressor

when system is initially powered on.

v 10.0 u C 5.0 u C-25.0 u C

Time setup for system from initial power-up

to compressor warm-up

240min. 0-480min.

Category Default value Setting range

Temperature control cycle 80s 10-250s

Time interval between compressor star-up 180s 60-999s

Solenoid valve control delay for liquid line 10s 0-30s

Alarm delay when flow switch triggers 10s 3-30s

Condensation pressure setup for starting fan 10.0bar 7.0-20.0bar

Evaporation pressure setup for starting fan 9.0bar 3.0-9.0bar

Pressure setup for different air flow 3.0bar 1.0-4.0bar

Pressure setup for control range 1.5bar 1.0-6.0bar

High condensation pressure alarm 25.0bar 22.0-30.0bar

Low pressure alarm point for cooling 3.0bar 1.0-4.0bar

Low pressure alarm point for heating 1.5bar 0.0-3.0bar

Low evaporation temp alarm -1.0 t -20.0 ~10.0 t

Stop alarm for low evaporation temp 6 t -20~10 t

High condensation temp alarm 60.0 t 50.0 ~80.0 t

Returning water sensor compensation setting -0.0 t +5.0 ~5.0 t

Leaving water sensor compensation setting -0.0 t +5.0 ~5.0 t

Number of combination modules 2 1-8

Number of unit compressors 3 2-3

Low leaving water temp alarm point 3.0 t -20~10 t

High leaving water temp alarm point 55.0 t 40~65 t

Interface description Initial interface

YOK INTERNATIONAL Central Control System

YORK GUANGZHOU

HTTP: WWW.YORK.COM

System is started and enter initial interface to indicate manufacturer, contact information and so on. Press cursor key x to enter main menu

Main menu 1

LCWT : 8.8 u SETPOINT: 7.0 u C ECWT: 11.8 u SETPOINT: 12.0 u C ENVT: 38.8 u LOAD: 25.0%

First line in the display indicates current date and time. Real time indication of Leaving / Returning water temperatures, their settings, environment temp and load capacity Press cursor key x to enter “function” menu

Function selection (main menu)

FUNCTION MENU DISPLAY SYSTEM STATUS

UPDATE SETPOINT DISPLAY FAULT

Use x or y key to select the item. Selected items will be in

white. Press “Enter” key to confirm and enter corresponding

function. Press MENU key to return to main menu 1.

A. Indicate system status—Real time indication of system communication, DO and DIN status of each unit, fin temp. At each unit, Leaving water temp, Returning water temp, compressor, and accumulative running time for water pump, D0 and DI definition.

UPDATE SETPOINT DISPLAY FAULT

FUNCTION MENU indicates system status and functions. Press ENTER key to confirm. Use x or y key to go to different pages for indication of corresponding status.

Interface A-1

MODULE STATUS I/O NUMBER: 2

This is the initial interface to indicate module grouping. Press MENU to go back to function selection interface. Press cursor key x to enter next page.

Interface A-2

COMMUNICATION STATUS ONLINE MODULE: 2 1: ON 2:ON 3: OFF 4: OFF 5:OFF 6 OFF 7:OFF 8: OFF

This interface indicates system communication. Press y key to go back to last page and press x key to go to next page. Press MENU key to come back to function selection interface.

Interface A-3

1# DO STATUS 1:ON 2: OFF 3:OFF 4: OFF 5:OFF 6 OFF 7:OFF 8: OFF 9:OFF 10 OFF 11:OFF 12: OFF

This interface indicates 1# module DO status. Press MENU key

to go back to function selection menu. Press x key to go to next

Interface A-4

1# DIN STATUS 1: ON 2: ON 3: ON 4: ON 5: ON 6 ON 7: ON 8: ON 9: ON 10 ON 11: ON 12: ON

This interface indicates 1# module DIN status. Press MENU key

to go back to function selection menu. Press x key to go to next

Interface A-5

1# MODULE AIN 1 EVA/COND TEMP 30.3 t 4 FIN –5.3 t 5 EXT TEMP 30.2 t 7 HP 7.5BAR 8 LP 1.7BAR

This interface indicates tested value of 1# module AIN. Press

MENU key to enter function selection menu. Press x key to go

to next page.

Interface A-6

ALL RUNNING TIME (HOUR) 1:0000H 2:0000H 3:0000H 4:0000H ALL RUNNING TIME OF PUMP:0000H

This interface indicates accumulative running time of each

module. Press y key to go back to last page and press x key to

go to next page. Press MENU key to come back to function

selection interface.

Interface A-7

DO DEFINITION 1:PUMP 2:1# COND FAN 3: 2# COND FAN 4:1# COM 5:2# COM 6:3# COM

This interface indicates DO definition. Press y key to go back to

last page and press x key to go to next page. Press MENU key

to come back to function selection interface.

Interface A-8

DO DEFINITION 13:3# COND FAN 7:4-WAY VALVE 8:LIQUID VALVE 9: HEATER 10: FAN1 REV 11:RUN 12: ALARM

This interface indicates DO definition. Press y key to go back to

Interface A-9

DI DEFINITION 1:WFS 2:EXTERIOR CHAIN 3: FAN O/L 4:HP PROTECT 5: LP PROTECTION: COM 6: POWER FAILURE 7:1# COM O/L

This interface indicates DI definition. Press y key to go back to

Interface A-10

8: 2# COMP O/L 9:3# COMP O/L 10:LP PROTECT: CO 11: H/C SWITCH (1#) 12: REMOTE CONTROL (1#MODULE)

This interface indicates DI definition. Press y key to go back to last page and press x key to go to next page. Press MENU key to come back to function selection interface.

Interface A-11

ID: 966661961 EDITION: YCAB-V10.0T

This interface indicates unit serial number and software version. Press MENU key to come back to function selection interface. press x key to go to next page.

B. Change system data—set up unit condition, running time, control basis, control selection, time interval, trouble alarm and password usage. Control system offers protection when power is off so that all the data settings are safe.

FUNCTION MENU

DISPLAY SYSTEM STATUS UPDATE SETPOINT

DISPLAY FAULT

Function selection interface offers change to system settings.

Press ENTER key to confirm.

Interface B-1

UPDATE SETPOINT CUSTOMER SETTING

SERVICE SETTINGS FACTORY SETTINGS

This is the dub-interface for change to system settings. Selected

items will be in white background. Press ENTER key to enter

related sub-function setup.

(a) Change to user settings—change unit running mode, auto timer ON/OFF, weekday setup, working conditions in summer and winter, switch, travel range, switch between heating and cooling, current time.

UPDATE SETPOINT CUSTOMER SETTING

SERVICE SETTINGS FACTORY SETTINGS

Select in FUNCTION MENU the interface for UPDATE

SETPOINT, then press ENTER key to confirm. If operation

password is required (password: 4653) please refer to following

text (d) password usage interface. Press y or x key to go up and

down to relevant interfaces for setting changes.

For change to the settings in current interfaces, following is the procedure:

(1) Press ENTER key, screen will be indicated in white.

(2) Press y or x key to move the white area to the desired data. Press ENTER key to enter the data.

(3) Press y or x key to change the value of the data. Use z or { key to move the white area to different digit position for

change.

(4)Press ENTER key to confirm the change

(5)Press y key to go back to last page and press x key to go to next page.

(6) Press MENU key to come back to FUNCTION MENU interface.

Interface B-a-1

RUNNING MODE SET

TURN ON TIME: 7:30

TURN OFF TIME: 15:00

MODE: AUTO RUNNING BY TIME

ON/OFF time setup refers to the working mode setup: auto

ON/OFF time.

Procedure to change running mode for the unit: auto ON/OFF-MANUAL OFF/ON- Manual ON and auto OFF-auto OFF-Manual OFF-auto ON/FF

When manual ON/OFF running mode is selected, the system cannot turn on or of automatically. In this case, ON time OFF time does not work. Holiday or week day settings do not work either. When auto ON/OFF is selected, then setup priorities are: holiday setting- weekday running time setting-daily auto ON/OFF time. In this case, manual start or stop key still works.

Interface B-a-2

HOLIDAY RUNNING SET1

TURN ON TIME: JAN 1 8:30

TURN OFF TIME: JAN 1 12:00

When auto ON/OFF mode is selected in the interface B-a-1,

control system allows for 3 sets of holiday running settings

Interface B-a-3

ON time: Jan 1 0:00

OFF time: Jan 1 0:00

Interface B-a-4

Interface B-a-5

WEEK RUNNING SET1

Control system allows for changes to 2 sets of weekday running

time, that is, there are two days off each week. Once initialized,

system will operate according to this time settings

Interface B-a-6

WEEK RUNNING SET2

If ON time and OFF time are both 0:00, this means such setting

is not initialized.

Interface B-a-7

SUMMER COOL MODE SET:

LCWT:12.0 t DT 1.0 t

ECWT: 12.0 t DT 1.0 t

Temp range for leaving temp when cooling: 5.0~12.0 t

Returning water tem range: 7.0~17.0 t

Temperature difference to load/unload :1.0-5.0 t

Interface B-a-8

WINTER HEAT MODE SET;

LCWT:45.0 t DT 2 t

ECWT: 40.0 t DT 2 t :

Temp range for leaving temp when heating :40.0~50.0 t

Returning water temp range: 35.0~45.0 t

Temperature difference to load/unload:1.0-5.0 t

Interface B-a-9

COOLING/HEATING MODE SWITCH: AUTO

COOLING/HEATING MODE TEMP SWITCH:

< 20.0 t , HEAT

> 25.0 t , COOL

Switch between cooling/heating: cooling-heating-auto-manual

(when “single cooling” model is selected, press enter to force to

cooling.

Auto heating temperature range:10.0~30.0 t

Auto cooling temperature range:20.0~40.0 t

Interface B-a-10

ALARM PHONE No.:

This interface indicates the telephone number for alarm. It can be

land phone or auto pager.

Interface B-a-11

CURRENT DATE SET

DATE: AUG 21, 2001 THU

TIME: 08:50

*Note: If customer settings are out of the range given by the control system, then system will choose top and bottom limits

as final settings.

(b) Change to server settings: change and set up control selection, alarm delay duration, alarm time and so on.

UPDATE SETPOINT

CUSTOMER SETTING

SERVICE SETTINGS

FACTORY SETTINGS

password is required, please refer to following text (d) password

usage interface. Press y or x key to go up and down to relevant

interfaces for setting changes.

change.

(4)Press ENTER key to confirm the change

(5)Press y key to go back to last page and press x key to go to next page.

Interface B-b-1

SUMMER CONTROL SELECT: LW

WINTER CONTROL SELECT: LW

Control base is the selection of circulation switch: returning

water –leaving water –returning water

Interface B-b-2

WINTER FREEZE PREVENTION:

LCWT<2.0 t COMP ON

LCWT>10.0 t COMP OFF

Temp range for compressor start: 1.0~5.0 t .

Temp range for compressor stop: 5.0~15.0 t .

Interface B-b-3

HEATER SET: LCWT<35.0 t ON

LCWT>40.0 t OFF

Running temperature for electrical heater is controlled based on

leaving water temperature. Setup range: 25.0-48.0 t .

Temperature range setup for switching off electrical heater:

30.0-48.0 t

Interface B-b-4

START DEFROSTING

SURROUND FIN TEMP> 5.0 t

STOP DEFROSTING: FIN TEMP> 20.0 t

Temp to start defrost: 5.0-20.0 t

Temp to stop defrost: 0.0-50.0 t

Interface B-b-5

SHORTEST INTERVAL SET

SURROUNDING> –5.0 t 1800S

SURROUNDING< –5.0 t 1200S

LONGEST TIME LIMIT: 300S

Shortest defrost time interval range

Environment temp higher –5.0 t 600-3600s

Environment temp lower –5.0 t 600-3600s

Longest defrost time range: 90-600s

Note: only when environment temp is lower than 7 t , can

defrost program work

Interface B-b-6

AFTER DEFROSTING, FAN&4 WAY-VAL

RUN DELAY TIME: 50S

After defrost, fan&4 way- valv start delay time,

Range: 0-60s

Interface B-b-7

DEFROST LATENCY TIME: 1200S

OIL WARM-UP TIME: 200MIN

WHEN SURROUNDING TEMP LOWER 10.0 t

Defrost latency time: 300-1800s

Warm up time setting for compressor oil: 0-600min.

Interface B-b-8

TEMP CONTROL CYC SET: 10S

COMP RESTART-UP DELAY: 180S

LAST RUN TIME BEFORE

STOP BY TEMP CONTROL: 30S

Temp control cycle: 10-250s

Compressor restart interval range: 60-999s

LIQUID VALVE DELAY: 10 SEC

WFS ALARM DELAY: 10 SEC

Liquid line solenoid valve control delay range: 0-30s

Water flow switch trigger alarm delay range: 3-30s

Interface B-b-9

COND PRESSURE: 10.0BAR

EVA PRESSURE: 9.0BAR

WIND PRESS SEGMENT: 2.0 BAR

PRESS DIFFERENCE: 2.0BAR

Condensation pressure setup for starting fan range: 7.0-20.0bar

Evaporation pressure setup for starting fan range: 3.0~9.0bar

Wind press segment range: 1.0-4.0bar

Pressure difference range: 1.0-6.0bar

Interface B-b-10

HIGH COND ALARM: 25.0 BAR

COOL ALARM SET: 3.0BAR

HEAT ALARM SET: 1.5BAR

High condensing alarm pressure range: 22.0-30.0bar

Cooling alarm pressure range: 1.0 –4.0bar

Heating alarm pressure range: 0.0 –3.0bar

Interface B-b-11

LOW EVA ALARM TEMP:-10.0 t

EVA ALARM OFF TEMP:6.0 t

Low evaporation alarm temp range:-20.0-10.0 t

Stop alarm for low evaporation temp range:-20.0~10.0 t

Interface B-b-12

HIGH COND ALARM TEMP: 65 t High condensation temp alarm range: 50~80 t

Interface B-b-13

SYS LCW TEMP TOO LOW: 3.0 t

SYS LCW TEMP TOO HIGH: 55 t

DT: 4.0 t

Low leaving water temp alarm range: -20~10 t

High leaving water temp alarm range: 40~65 t

Difference temp range: 0~10 t

(c) Change manufacturer settings—clear, reset data, password use, total of compressor running time and so on.

Note: These data are factory set up. Customers do not try to change them. If so doing, control system may malfunction.

UPDATE SETPOINT

CUSTOMER SETTING

SERVICE SETTINGS

FACTORY SETTINGS

password is required, please refer to following text (d) password

usage interface. Press y or x key to go up and down to relevant

interfaces for setting changes.

change.

(4) Press ENTER key to confirm the change

(5) Press y key to go back to last page and press x key to go to next page.

Interface B-c-1

ECWT SENSOR MODIFY: 0.0 t

LCWT SENSOR MODIFY: 0.0 t

returning water sensor temp compensation range: -5.0-+5.0 t

leaving water sensor temp compensation range: -5.0-+5.0 t

Interface B-c-2

CLEAR ALL VARIABLES: NO

RESTORE DEFAULT VALUE: NO

PASSWORD USING: YES

MEMORY WHEN POWER DOWN: NO

Setting circulation switch: Yes-No (No-Yes)

Note: ”Clear all variables” means clear off accumulative running time for compressor and water pump. “Confirm as

defaults” means system will adopt factory settings as configuration. For “Password usage”, please refer to following text

(d) password usage interface

Interface B-c-3

LIMIT RUN TIME PROTECT: NO

LIMIT RUN TIME: 800H

FACTORY PASSWORDS: 8836

CUSTOMER NO: 10

Interface B-c-4

CLEAR ALARM: NO

UNIT NUMBER: 2

BACKLIGHT OFF DELAY: 30MIN

Interface B-c-5

MODULE SELECT: SINGLE COOLING

MODULE NUMBER: 2

MODULE COM NUM: 3

Interface B-c-6

TEMPERATURE UNIT: t

LANGUAGE: ENGLISH

* PLEASE RETURN THEN POWER ON

(d) Password usage interface-change system setup to receive usage of password for access verification. Internal PIN numbers adopted to the unit includes user password, server password and manufacturer password. Each password is a four-digit number.

Interface B-d-1

CUSTOMER PASSWORD:

This interface is for user to change the password for

sub-function. Press y or x key to change the value in white.

press z or { to move the white area. Press ENTER key to

confirm the entry (user password is 4653)

Interface B-d-2

INVALID PASSWORDS!

If correct password is entered, this interface will pop up. Press

any key to enter the interface “change user password” (B-a-1)

Interface B-d-3

SERVICE PASSWORDS

This is the encrypted interface to change SERVICE SETTINGS.

Procedure is the same as above.

Interface B-d-5

FACTORY PASSWORDS:

This is the encrypted interface to change FACTORY

SETTINGS.

c- Trouble information-To inquiry on start date and time and end date and time for trouble, trouble location, trouble

description and so on. Such inquiry function memorizes only the last 100 records in order of occurrence.

UPDATE SETPOINT

DISPLAY FAULT

In the FUNCTION MENU interface, DISPLAY FAULT. Press

ENTER key to confirm.

Press y or x key to page up and down to specific trouble page.

Interface C-1 (Example for trouble)

9/9 14:09

COMP FAULT WITH NO.1

This screen indicates that the first trouble happened on Sep 9.

Trouble started at 14:09. Trouble description:1# compressor

overload.

If this unit needs to be restarted after the trouble is fixed, in the main menu, press twice “return” to finish reset and restart. D. Role of functional keys D-1 Forced turn ON or OFF the unit D-1-1 In OFF mode, press “FUNCTION” key to complete forced startup

FORCES TURN ON/OFF MODULE: 1

Press “confirm” key to select the module desired for forced start and confirm.

D-1-2 In forced ON mode, press “FUNCTION” key to complete forced turn off.

Press “confirm” key to select the module desired for forced turn off and confirm. D-1-3 In ON mode, press “FUNCTION” key to complete forced turn off.

Press “confirm” key to select the module desired for forced turn off and confirm. D-2 Manual defrosting D-2-1 In heating mode, in the main menu, press “FUNCTION” key two times to enter the interface for manual defrosting setup.

DEFROSTING SETTING MODULE: 1 DEFROSTING 10 MINUTES

Press “Confirm” key to select the module desired for defrosting and defrosting time. Conditions to end defrosting are the same as those for automatic defrosting.

Interface E: Accumulative running timeout protection interface

-----WARNING INFORMATION------

OVERRUN PROTECTION PLEASE CONTACT MANUFACTURER!

This screen is designated to set up protection to running timeout. Time will be accumulated till such a time that when customers start the unit, start push button does not work. In this case, contact manufacturer to change the settings for accumulative running timeout before unit can be started.

York Guangzhou Air-conditioner and Refrigeration Equipment Co., Ltd. * York reserves rights to modify the design of product without prior notice. ** Specific features of the products can be agreed on in the contract. This brochure is only for reference. *** Thank you for using York products. If you have any questions during usage, please at any time call our toll free number: 8008206607

Headquarter of York North Asia Tel: 00852 23319286 Fax: 00852 23319840

Fuzhou office Tel: (0591)8783108 Fax: (0591)8788389

Kunming Office Tel: (0871)5653273(74) Fax (0871)5653285

Harbin office Tel: (0451)82311092(93) Fax: (0451)82314038

York China Refrigeration Project Engineering Center Tel: (021)62766509 Fax: (021)62773543/3986

Guangzhou office/service center Tel: (020)83635222(564) Fax: (020) 83635828/567

Wuhan office Tel: (027)85725031(32) FAX: (027)85725038

Tianjin office Tel: (022) 26264070 Fax (022)26213052

Shanghai office/service center Tel: (021)62766509 Fax: (021) 62773543/0608

Chang sha office Tel: (0731)4421838 Fax: (0731)4447868

Chengdu office/service center Tel: (028)86527070 Fax: (028)86527279

Qing dao Office Tel: (0532)5759274/294/248 Fax: (0532)5777641

Nan jing office Tel: (025) 84799857 Fax: (025)84799624

Shan tou office Tel: (0754)8469358(658) Fax: (0754)8468362

Chongqing office Tel: (023)63801828(38/48) Fax: (023)63801858

Shenyang office Tel: (024) 23286160 Fax:(024)23866150

Hefei office Tel: (0551) 2680917/918/919/920 Fax: (0551)2680915

Dongguan office Tel: (0769)2496018(28/38/48) Fax: (0769)2494068

Zheng Zhou office Tel: (0371)5615674/75 Fax: (0371)5600295

Xin jiang office Tel: (0991)2824882 Fax: (0991)2834186

Xiamen office/service center Tel: (0592)2397977/6 Fax: (0592)2399996/5967

Shenzhen office/service station Tel: (0755)82292868 Fax: (0755)82181527

Beijing office/service center Tel:( 010)65545580 Tel: (010)65545560/61/62/63

Lan Zhou office Tel: (0931)8448430(31) Fax: (0931)8448432

Suzhou office Tel: (0512)65119076 Fax: (0512)65115575

Nan Ning office Tel: (0771)5329894(791) Fax: (0771)5330154

Dalian office Tel: (0411)83787291(92) Fax: (0411)83787293

Changchun office Tel: (0431) 8400233 Fax: (0431) 8400237

Hangzhou office/service center Tel: (0571)87797796/051 Fax: (0571)87797048/053

Hai kou office Tel: (0898)66786881 Fax: (0898)66706880

Ji nan office Tel: (0531)3185555 Fax: (0531)3185500

York Guangzhou Air-conditioner and Refrigeration Equipment Co., Ltd. Tel: (0763) 4681111 Fax: (0763)4681114

Nan chang office Tel: (0791)6495565 Fax: (0791)6495515

Guiyang office Tel: (0851)6791833/6791133 Fax: (0851)6791933

Xi’an office Tel: (029)87887838/87811245 Fax: (029) 87883430

York Wuxi Air-conditioner and Refrigeration Equipment Co., Ltd. Tel:( 0510)5216966 Fax: (0510)5217113

YCAB_man

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