DATA & FACTS GEA Close Control - Delta GCI · GEA Close Control Unit Weights / Access / Typical...

Air Treatment Division

DATA & FACTS

GEA Close ControlE-Range – Aerial Values Always On The Level

Description GEA Close Control E Range

2 PR-2006-0296-GB Subject to modifications Status 05/2007

The Range ..........................................................................................3

Upflow and Downflow Versions Direct Expansion and Chilled Water Units .............................................................3

Key to Type Codes .................................................................................................3

Energy Saving Options .....................................................................4 Dimensions Downflow Units .............................................................5 Dimensions Upflow Units ................................................................ 6 Unit Weights / Access / Typical Airflow Arrangements ..................7 Guide Specification ...........................................................................8 General Details ................................................................................11 Cooling Performance: "X" & "A" Versions ....................................13 Cooling Performance: "W" & "F" Versions ...................................14 Cooling Performance: "C" Version ................................................15 Electrical Details ..............................................................................16

"X" and "A" Version ...............................................................................................16

"W", "F" and "C" Version ......................................................................................17

Schematic Diagrams .......................................................................18 "X" Version.............................................................................................................18

"A" Version.............................................................................................................19

"W" Version............................................................................................................20

"F" Version.............................................................................................................21

"C" Version ............................................................................................................22

Ancillaries and Options ...................................................................23

GEA Close Control The Range E Range Key to Type Codes

PR-2006-0296-GB Subject to modifications Status 05/2007 3

Upflow and Downflow Versions Direct Expansion and Chilled Water Units

The "E" Range of air conditioning units is compact and stylish with the higher performance and quality demanded by today's close control air conditioning market.

These units are designed and built using our unrivalled experience in close control air conditioning, with extensive testing of components and complete systems. Every aspect is engineered to ensure maximum reliability, economy of operation and long working life, together with ease of installation and maintenance.

The "E" Range comprises eight (8) models, in four (4) cabinet sizes, with nominal capacities from 22 kW to 100 kW in the following versions: -

- X: Split System using Denco Condensing Units. - A: Air Cooled DX System with inbuilt compressor(s) and using Denco DCRA

Condensers. - W: Water Cooled DX System with inbuilt compressor(s) and Water Cooled

Condensers. - F: Ambicool System. - C: Chilled Water System. - D: Combicool System

Key to Type Codes Example: U 54 A V G H

H = Humidifier fitted G = Front Grille Return - U only

(as opposed to underfloor return) V = Variable Refrigerant Flow (VRF)

A = A - Air Cooled System X - Split System W - Water Cooled System F - Ambicool System C - Chilled Water System D – Combicool System

54 = Unit Size: 24, 34, 44, 54, 64, 74, 84 and 94 U = Upflow (D = Downflow)

Energy Saving Options GEA Close Control E Range


"E" Range air conditioning units incorporate all of the energy / cost saving benefits for which Denco products are renowned. These include:

Ambicool (Glycol freecooling system) - "F" Version (not available on models 48 – 83) This substantially reduces annual energy consumption, and consequently costs, by exploiting low average ambient temperatures to provide partial or full freecooling. It is very unusual to experience the design summer ambient for any length of time, and external temperatures are generally considerably less for much of the year. This allows the drycooler to produce glycol at lower temperatures.

When the glycol is colder than the room air, it is passed through the economy coil before reaching the condenser, picking up some heat directly from the room rather than via the refrigeration system. Under conditions such as this, the compressor run time is reduced, thereby saving energy. As an example, some degree of freecooling is usually available for 70 % of the year in northern Europe, giving very substantial running cost savings.

Variable Refrigerant Flow (VRF) - "V" Option This provides various compressor options for efficient part-load performance, with exceptional economy.

Full Cooling Load Both compressors running to circulate the full design refrigerant flow in order to achieve specified maximum cooling capacity. The scroll compressor coefficient of performance (COP) is typically 3.5.

Part Load Operation Lead compressor only running to circulate approximately 60% of the refrigerant flow. Evaporator and condenser are both oversized under this condition, causing increase in suction pressure and a reduction in discharge pressure. Resultant part-load COP increases to typically 5.0.

Secondary benefits include reduced temperature swing and increased compressor reliability caused by reduced cycling and an optional two-stage high-pressure trip. Lower inrush current and inbuilt redundancy is also provided by dual compressors and reduced humidifier run time – due to the very high sensible heat ratio achieved at the higher evaporating temperatures. Payback period is typically less than one year.

GEA Close Control Dimensions Downflow Units E Range


Dimensions Upflow Units GEA Close Contro E Range


GEA Close Control Unit Weights / Access / Typical Airflow Arrangements E Range


Unit Weights

Weights : (approx.) kgs 24 34 44 54 64 74 84 94

Version: "X" and "C" 345 345 485 485 735 735 795 795

Version: "A" 520 535 770 795 1045 1090 1220 1230

Version: "W" 535 550 860 890 1075 1130 1280 1305

Version: "F" 720 740 1165 1200 1480 1525 1705 1760

Unit Access Requirements The "E" Range of air conditioning units has been designed to be completely front access for service / maintenance via the front hinged / removable doors. Therefore, no allowance for access to the ends or back is necessary, although the end panels can be removed in-situ if required.

Typical Airflow Arrangements

Section "A" Downflow, into raised floor. Return from room or ceiling. Section "B" Upflow, with horizontal discharge plenum, and front grille return. Section "C" Upflow, with ceiling duct extension and underfloor return.

Guide Specification GEA Close Control E Range


Cabinet The cabinets shall be attractively designed having bevelled corners with flush fitting curved panels. Units shall have a rigid frame, manufactured from non corroding Aluzink, with hinged curved front panel(s) to provide access for installation and servicing. Panels shall be lined with class "O" non eroding insulation material with both thermal and acoustic properties. External panels shall be manufactured from pre-coated steel, colour Grey (RAL number 7024).

Cooling Coil The coils shall be multi row constructed from 3/8" O/D copper tubes with mechanically bonded aluminium fins. Direct expansion coils shall have internal grooving for optimum heat transfer. The coil face area shall be maximised to ensure high sensible heat ratio and low airside pressure drop, thereby minimising fan power and noise level. A stainless steel drain tray shall be included to ensure efficient removal of the condensate, via a factory fitted trap.

- DX: Units shall have one, two or four refrigeration circuits (dependent upon model), inclusive of liquid distributor, expansion valve, solenoid valve, sight glass and filter drier, and these components shall be housed in the cabinet.

- C: Units shall be fitted with a modulating 3 way valve having manual override facility with water pressure / temperature test points, and these components shall be housed in the cabinet.

Fans Large, low speed, double inlet, double width fans with forward curved impellers and "sealed for life" ball or roller bearings shall be used to minimise noise levels. Units shall have one, two, three or four fans, depending on unit size, each fan to have its own TEFC motor and speed variation by manually adjustable pulley. Units shall include fan fail / airflow alarm which shall in the event of an alarm condition disable all outputs except unit run.

GEA Close Control Guide Specification E Range


Electric Heaters Electric heaters shall have rigid Incoloy sheathed elements with stainless steel finning balanced over three phases and rated to operate at black heat. Control shall be in one or two stages, each stage being protected by a high temperature safety cut-out.

Filtration The filters shall have an efficiency of 30 % ASHRAE 52/76 Eurovent 4/5 arrestance value 90 % (G4). They shall be fitted in the return air stream, held by quick release retaining clips, and be accessible from the front of the unit. A differential pressure switch shall be fitted which, through the alarm facility in the microprocessor controller, shall indicate when the filters need changing.

Compressors Fully hermetic scroll compressors, one (or two - VRF only) for each refrigerant circuit, shall be located out of the airstream in the services section of the air handling unit for "A", "W" and "F" versions. The compressor(s) shall be located externally in the condensing unit for "X" versions. When fitted inside the unit, compressor(s) shall be resiliently mounted on a robust frame to minimise noise and vibration transmission to the structure. Each compressor shall be fitted with back seating isolating valves together with crankcase heater ("X" systems only) and on larger models an oil level sight glass shall be fitted.

An external adjustable high pressure cut off switch, with manual reset facility shall be provided for high pressure protection, in addition to the internal devices. To protect primarily against loss of refrigerant charge, an adjustable low pressure switch shall also be provided, which includes an automatic reset facility. On "X" and "A" versions a LP alarm delay function for temperatures down to -25°C is fitted as standard.

Condenser Fan Speed Controllers shall be fitted as standard to units operating with air cooled condensers ("A" version). The controllers, one for each refrigeration circuit, are located within the service section of the Air Handling Unit giving easy access for servicing and adjustment.

Note: Where air cooled condenser are not of Denco manufacture, they must be single phase and have a FLC of less than 5A per circuit to operate with this option.

Water Cooled Condensers The condenser shall be a compact brazed plate heat exchanger having a multiplicity of parallel stainless steel pressed plates. The construction shall give high turbulent flows resulting in a compact heat exchanger form with low pressure drops.

Humidifier The humidifier shall be of the electrode boiler type, located in the bottom of the unit. Features shall include proportional steam output and microprocessor control with alarms and diagnostic facilities. The control system shall allow the use of a wide range of mains water conditions and optimise drain down frequency for maximum operational economy.

Dehumidification This shall be achieved by switching cooling stages as required, in the case of a VRF system this would run both compressors on one of the refrigeration circuits.

Guide Specification GEA Close Control E Range


Electrical Panel The electrical switchgear shall be contained in a cubicle located in the top of the unit, and shall include: - Controller baseboard and modules (if applicable) - MCB's and contactors for fans, heaters, humidifier and compressors as

appropriate - MCB's for remote condensing units (if applicable) - MCB's plus pressure operated on off switches for remote condensers (if

applicable)

Cabling shall be colour coded and numbered, and neatly run in trunking segregating high and low voltages. All wiring shall comply with BS EN 60204 Part 1.

Control Panel The control system and display and push buttons shall be positioned at eye-level in the front hinged panel of the unit. The door interlocked isolator is positioned in a separate fixed box behind this panel. The electrical switchgear, contained in a hinged cubicle behind this panel, shall include:

- A bottom entry gland plate with grommeted cable entry holes - MCB's and contactors for fans, heaters, humidifier and compressors as

appropriate - MCB's for remote condensing units (if applicable) - MCB's plus pressure operated controls for remote condensers (if applicable) - Condenser fan speed controllers Cabling shall be colour coded and numbered, and neatly run in trunking segregating high and low voltages. All wiring shall comply with BS EN 60204 Part 1.

Microprocessor Controls All units shall be fitted, as standard, with a C3-05 advanced microprocessor controls system, designed by Denco. This shall provide maximum economy of operation, a comprehensive intelligent alarm system and a wide range of information for operators and service engineers. All information shall be presented in a user friendly format with tamper proof setting up arrangements.

In addition to precise control of temperature and humidity, the system shall include the following features: - A liquid crystal semi - graphical display indicating unit function via icons,

displaying control conditions and historic logging of temperature and humidity conditions.

- Coded security access for set point parameter adjustment - Programmable stage delays, to minimise inrush currents - A comprehensive alarm system. Alarms shall be memorised and displayed in the

order in which they occur in order to aid fault diagnosis - Programmed set points and parameters shall be held in a non volatile memory,

therefore being safeguarded upon power failure - Denco Net functions are a standard feature within the controller. - Various third party communication and interface options are available which

connect direct to the C3-05 controller.

GEA Close Control General Details E Range


General Details

D / U - All Versions 24 34 44 54 64 74 84 94

Coils: Coil Face Area

m2

1.22

1.22

1.91

1.91

2.60

2.60

3.29

3.29

Fans: No. of Fans Air Volume Noise Level † Fan Motor Fan Heat Absorbed

- m3/s dB(A) kW kW

1

2.2 55 3

2.02

1

2.6 58 3

3.09

2

3.4 57 3

2.95

2

4.3 59 3

5.36

3

5.6 59 3

5.93

3

6.2 61 3

7.65

3

6.7 60 3

6.98

3

7.5 61 3

9.28

Electric Reheat: No. of Steps Capacity

- kW

2 12

2 12

2

12

2 12

3 18

3

18

3 18

3

18 Humidifier: Capacity Power

kg/hr kW

8 6

8 6

15

11.25

15

11.25

15

11.25

15

11.25

15

11.25

15

11.25 D/U Filters: No. of Pieces Length Width Depth

- mm mm mm

2

640 525 100

2

640 525 100

3

640 525 100

3

640 525 100

4

640 525 100

4

640 525 100

5

640 525 100

5

640 525 100

General Details GEA Close Control E Range


D / U - All Versions 24 34 44 54 64 74 84 94

"X" Versions

Suction Line Liquid Line Humidifier Feed Drain

ins ins mm mm

7/8 1/2 15 22

1-1/8 1/2 15 22

1-1/8 5/8 15 22

1-3/8 5/8 15 22

1-3/8 3/4 15 22

1-3/8 3/4 15 22

1-3/8 3/4 15 22

1-5/8 7/8 15 22

Standard C.U. No. C.U.’s fitted

- -

CM61 2

CP72 2

CL90 2

CL12 2

CL12 2

CL16 2

CP90 4

CL90 4

"A" Versions

Discharge Line Liquid Line Humidifier Feed Drain

ins ins mm mm

3/4 1/2 15 22

7/8 1/2 15 22

7/8 5/8 15 22

1-1/8 5/8 15 22

1-1/8 3/4 15 22

1-1/8 3/4 15 22

1-1/8 3/4 15 22

1-1/8 7/8 15 22

Standard Compressor No. Compr. fitted A/C Condenser * No. Condensers fitted

- DCRA -

ZR48K 2

21-6 2

ZR81K 2

21-6 2

ZR81K 2

21-6 2

ZR12M2

32-6 2

ZR12M2

32-6 2

ZR81K 4

50-6 2

ZR81K 4

50-6 2

ZR12M4

50-6 2

"W" Versions

Condenser Water In Condenser Water Out Humidifier Feed Drain

mm mm mm mm

28 28 15 22

28 28 15 22

28 28 15 22

42 42 15 22

42 42 15 22

42 42 15 22

42 42 15 22

42 42 15 22

Standard Compressor No. Compr. fitted W/C Condenser No. Condensers fitted

- - B -

ZR48K 2

10/30 2

ZR81K 2

10/40 2

ZR81K 2

10/40 2

ZR12M2

35/20 2

ZR12M2

35/30 2

ZR81K 4

35/30 2

ZR81K 4

35/30 2

ZR12M4

35/40 2

"F" Versions

Coolant In Coolant Out Humidifier Feed Drain

mm mm mm mm

35 35 15 22

35 35 15 22

42 42 15 22

42 42 15 22

54 54 15 22

54 54 15 22

54 54 15 22

54 54 15 22

Standard Compressor No. Compr. fitted W/C Condenser No. Condensers fitted

- - B -

ZR48K 2

10/30 2

ZR81K 2

10/40 2

ZR81K 2

10/40 2

ZR12M2

35/20 2

ZR12M2

35/30 2

ZR81K 4

35/30 2

ZR81K 4

35/30 2

ZR12M4

35/40 2

"C" Versions

Chilled Water In Chilled Water Out Humidifier Feed Drain

mm mm mm mm

35 35 15 22

42 42 15 22

54 54 15 22

54 54 15 22

Valve Size Valve kv

ins m3/hr

1¼ 16

1½ 25

2 40

2 40

Note:

• - Quiet / Residential Condensers are available as an alternative to the Standard versions stated.

GEA Close Control Cooling Performance: "X" & "A" Versions E Range


“X” Version 24 34 44 54 64 74 84 94

Airflow m3/s 2.2 2.6 3.4 4.3 5.6 6.2 6.7 7.5

21°C, 50 % RH Total Sensible S.H.R.

kW kW -

27.2 23.7 0.88

32.0 26.8 0.85

44.4 37.8 0.86

55.8 45.0 0.82

59.6 54.0 0.91

68.0 58.7 0.88

79.8 69.0 0.88

85.8 73.4 0.87


kW kW -

28.0 24.2 0.87

32.9 27.3 0.84

45.8 38.5 0.85

57.4 45.8 0.81

61.4 55.0 0.90

69.9 59.8 0.87

82.2 70.3 0.87

88.6 74.8 0.86


kW kW -

28.1 26.3 0.94

33.0 29.8 0.91

45.8 41.9 0.92

57.5 49.8 0.88

61.4 5 8.8 0.96

70.0 65.4 0.94

82.3 76.8 0.94

88.7 81.8 0.93


kW kW -

29.3 27.0 0.93

34.4 30.5 0.90

47.8 42.9 0.91

59.9 51.0 0.87

64.0 61.0 0.96

73.0 67.0 0.93

85.7 78.6 0.93

92.7 83.8 0.92

“A” Version 24 34 44 54 64 74 84 94

Airflow m3/s 2.2 2.6 3.4 4.3 5.6 6.2 6.7 7.5


kW kW -

25.3 22.9 0.91

35.2 28.2 0.82

38.6 35.3 0.92

54.7 44.5 0.83

58.2 53.4 0.92

74.4 61.5 0.84

78.0 68.3 0.88

103.3 81.0 0.80


kW kW -

26.0 23.3 0.90

36.2 28.7 0.81

39.7 36.0 0.91

56.3 45.3 0.83

59.9 54.4 0.92

76.7 62.6 0.83

80.3 69.6 0.88

106.2 82.3 0.79


kW kW -

26.0 24.9 0.96

36.3 31.2 0.87

39.7 38.2 0.96

56.3 49.3 0.89

59.9 57.6 0.96

76.7 68.3 0.90

80.4 76.0 0.95

106.3 89.3 0.85


kW kW -

26.8 25.6 0.96

37.3 31.7 0.86

40.8 39.1 0.96

57.9 50.2 0.88

61.6 59.0 0.96

79.0 69.5 0.89

82.7 77.3 0.94

109.2 90.7 0.84

Note: All values are NOMINAL DUTIES (Standard Airflow and Standard Compressor) Cooling performances are NETT, based on Downflow units and:

(a) Standard EU4 / G4 filtration and 50 Pa external static. (b) 32°C ambient temperature. (c) Refrigerant: R407C. (d) Standard Condensing Units (alternative combinations available, enquire for details). (e) Standard matching A/C Condensers (alternative combinations available; enquire for details). (f) Suction line loss 1.5K for “X” Version. (g) Suction line loss 0.5K for “A” Version.

Cooling Performance: "W" & "F" Versions GEA Close Control E Range


(h) VRF option available on all models.

“W” Version 24 34 44 54 64 74 84 94

Airflow m3/s 2.2 2.6 3.4 4.3 5.6 6.2 6.7 7.5


kW kW -

24.7 22.6 0.92

36.2 28.7 0.80

40.2 36.0 0.90

56.1 45.1 0.82

61.6 54.8 0.90

73.8 61.2 0.84

77.5 68.1 0.89

108.5 83.3 0.78


kW kW -

25.5 23.1 0.91

37.3 29.2 0.80

41.5 36.7 0.89

57.8 46.0 0.81

63.5 55.9 0.89

76.2 62.4 0.83

80.0 69.4 0.88

111.9 84.8 0.77


kW kW -

25.5 24.5 0.96

37.4 31.7 0.86

41.5 39.6 0.96

57.9 50.0 0.87

63.6 60.5 0.95

76.3 68.1 0.90

80.1 75.8 0.95

112.1 91.8 0.83


kW kW -

26.3 25.2 0.96

38.6 32.2 0.85

42.8 40.6 0.95

59.7 50.9 0.86

65.5 62.1 0.95

78.7 69.3 0.89

82.6 77.3 0.94

115.5 93.4 0.82

“F” Version 24 34 44 54 64 74 84 94

Airflow m3/s 2.2 2.6 3.4 4.2 5.6 6.0 6.7 7.3


kW kW -

21.7 20.7 0.96

32.0 26.5 0.84

35.4 33.5 0.95

49.8 41.7 0.85

54.4 51.1 0.95

64.7 56.2 0.88

67.9 63.5 0.94

97.2 77.2 0.81


kW kW -

22.4 21.3 0.95

33.1 27.0 0.83

36.5 34.4 0.94

51.5 42.6 0.84

56.3 52.3 0.94

66.9 57.4 0.87

70.2 64.8 0.93

100.4 78.8 0.80


kW kW -

22.5 22.1 0.98

33.1 29.5 0.90

36.6 35.6 0.98

51.6 46.5 0.91

56.3 54.6 0.97

67.0 62.9 0.94

70.3 68.0 0.97

100.5 85.6 0.86


kW kW -

23.2 22.7 0.98

34.2 30.0 0.89

37.8 36.6 0.97

53.2 47.4 0.90

58.1 56.1 0.97

69.2 64.1 0.93

72.7 70.0 0.97

103.7 87.2 0.85

Note: All values are NOMINAL DUTIES (Standard Airflow and Standard Compressor) Cooling performances are NETT, based on Downflow units and:

(a) Standard EU4 / G4 filtration and 50 Pa external static. (b) Condenser water in 30°C, temperature rise 8K for “W” Version. (c) Coolant: 25 % ethylene glycol solution, temperature in 40 °C, temperature rise 8K for “F” Version. (d) Refrigerant: R407C. (e) Standard matching W/C Condensers (alternative combinations available; enquire for details). (f) Suction line loss 0.5K . (g) VRF option available on all models.

GEA Close Control Cooling Performance: "C" Version E Range


“C” Version 34 54 74 94

Airflow m3/s 2.6 4.3 6.2 7.5

21°C, 50 % RH Total Sensible S.H.R. CW Flow Rate Unit Press. Drop

kW kW - l/s kPa

25.7 25.7 1.00 1.23 41.7

43.9 42.8 0.97 2.10 54.7

61.3 60.0 0.98 2.94 44.0

76.5 74.4 0.97 3.66 57.4


kW kW - l/s kPa

30.9 28.1 0.91 1.48 58.6

52.6 46.7 0.89 2.52 76.2

73.7 65.5 0.89 3.53 61.6

91.7 81.1 0.88 4.39 80.0


kW kW - l/s kPa

31.6 30.8 0.98 1.51 61.2

53.9 51.1 0.95 2.58 79.4

75.6 71.8 0.95 3.62 64.5

93.8 88.9 0.95 4.49 83.4


kW kW - l/s kPa

36.9 33.2 0.90 1.77 81.3

62.1 54.8 0.88 2.97 103.0

87.4 77.0 0.88 4.18 84.0

108.0 95.1 0.88 5.17 108.1

Notes: All values are NOMINAL DUTIES (Standard Airflow) Cooling performances are GROSS, based on Downflow units and:

(a) Standard 4 row Coil (a 6 row coil option for high temperature water is available). (b) Standard EU4 / G4 filtration and 50 Pa external static. (c) Chilled water in 7 °C, temperature rise 5K.

Electrical Details at 400 Volt / 3 Ph + N / 50 Hz GEA Close Control "X" and "A" Version E Range


"X" Version 24 34 44 54 64 74 84 94

Controls FLA 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0

Main Fans OA CLA

5.1 6.4

5.1 6.4

10.2 12.8

10.2 12.8

15.3 19.2

15.3 19.2

15.3 19.2

15.3 19.2

Heaters FLA 17.4 17.4 17.4 17.4 26.1 26.1 26.1 26.1

Humidifier OA CLA

8.7 14.8

8.7 14.8.

16.3 27.7

16.3 27.7

16.3 27.7

16.3 27.7

16.3 27.7

16.3 27.7

Condensing Unit OA CLA

17.8 21.0

20.2 24.0

29.2 33.6

37.6 43.6

37.6 43.6

43.2 51.6

53.6 61.6

58.4 67.2

Operating Amps OA 31.6 33.8 55.7 64.1 69.2 74.8 85.2 90.0

Connected Load Amps CLA 42.2 45.2 74.1 84.1 90.5 98.5 108.5 114.1

Maximum Inrush Amps LRA 97.7 107.2 156.3 189.3 195.7 239.7 192.1 196.3

Operating kW kW 18.8 19.5 29.5 34.9 37.3 41.5 44.5 45.3

Connected Load kW kW 24.0 26.0 41.7 48.1 51.1 56.3 60.5 61.3

"A" Version 24 34 44 54 64 74 84 94

Controls FLA 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0

Main Fans OA CLA

5.1 6.4

5.1 6.4

10.2 12.8

10.2 12.8

15.3 19.2

15.3 19.2

15.3 19.2

15.3 19.2

Heaters FLA 17.4 17.4 17.4 17.4 26.1 26.1 26.1 26.1

Humidifier OA CLA

8.7 14.8

8.7 14.8.

16.3 27.7

16.3 27.7

16.3 27.7

16.3 27.7

16.3 27.7

16.3 27.7

Compressors OA FLA

12.4 14.4

21.0 25.4

21.0 25.4

32.6 38.0

32.6 38.0

42.0 50.8

42.0 50.8

65.2 76.0

Condenser Fans FLA 6.6 6.6 6.6 6.6 6.6 13.2 13.2 13.2


Connected Load Amps CLA 38.9 49.9 69.2 81.8 88.2 104.3 104.3 129.5

Maximum Inrush Amps LRA 81.8 138.2 157.5 196.8 203.2 192.6 192.6 244.5

Operating kW kW 18.5 20.9 28.6 35.2 37.6 43.6 43.6 56.8


Notes: Controls are 24 V. “Operating Amps” (OA): worst case phase for components that can be selected to operate at any one time by the automatic control system, each component operating at “design conditions”, i.e. Compressors (based on saturated suction 5 °C, condensing 50 °C), Humidifier (100 %), Main Fans (80 % of rated kW) and Condenser Fans (100 % of rated kW). “Connected Load Amps” (CLA): worst case phase for components that can be selected to operate at any one time by the automatic control system at maximum load conditions for each component, i.e. (based on saturated suction 10°C, condensing 60 °C), Humidifier (170 % Alarm Condition), Main Fans (100 % of rated kW), Condenser Fans (100 % of rated kW).

GEA Close Control Electrical Details at 400 Volt / 3 Ph + N / 50 Hz E Range "W", "F" and "C" Version


"W" and "F" Version 24 34 44 54 64 74 84 94

Controls FLA 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0

Main Fans OA CLA

5.1 6.4

5.1 6.4

10.2 12.8

10.2 12.8

15.3 19.2

15.3 19.2

15.3 19.2

15.3 19.2

Heaters FLA 17.4 17.4 17.4 17.4 26.1 26.1 26.1 26.1

Humidifier OA CLA

8.7 14.8

8.7 14.8

16.3 27.7

16.3 27.7

16.3 27.7

16.3 27.7

16.3 27.7

16.3 27.7

Compressors OA FLA

12.4 14.4

21.0 25.4

21.0 25.4

32.6 38.0

32.6 38.0

42.0 50.8

42.0 50.8

65.2 76.0


Connected Load Amps

CLA 36.6 47.6 66.9 79.5 85.9 98.7 98.7 123.9

Maximum Inrush Amps

LRA 78.5 134.9 154.2 193.5 199.9 186.0 186.0 237.9

Operating kW kW 17.8 20.0 27.3 33.9 36.3 40.9 40.9 54.1


"C" Version 34 54 74 94

Controls FLA 1.0 1.0 1.0 1.0

Main Fans OA FLA

5.1 6.4

10.2 12.8

15.3 19.2

15.3 19.2

Heaters LRA 17.4 17.4 26.1 26.1

Humidifier OA FLA

8.7 14.8

16.3 27.7

16.3 27.7

16.3 27.7

Operating Amps OA 31.2 43.9 57.7 57.7

Connected Load Amps

CLA 39.6 58.9 74.0 74.0

Maximum Inrush Amps

LRA 40.9 84.9 123.3 123.3

Operating kW kW 20.4 28.1 36.5 36.5

Connected Load kW kW 25.2 37.1 46.1 46.1 Notes: Controls are 24 V. “Operating Amps” (OA): worst case phase for components that can be selected to operate at any one time by the automatic control system, each component operating at “design conditions”, i.e. Compressors (based on saturated suction 5°C, condensing 50 °C), Humidifier (100 %) and Main Fans (80 % of rated kW). “Connected Load Amps” (CLA): worst case phase for components that can be selected to operate at any one time by the automatic control system at maximum load conditions for each component, i.e. (based on saturated suction 10 °C, condensing 60 °C), Humidifier (170 % Alarm Condition), Main Fans (100 % of rated kW), Condenser Fans (100 % of rated kW).

Schematic Diagram: "X" Version GEA Close Control E Range


GEA Close Control RI-Schema: "A"-Version E Range


Schematic Diagram: "W" Version GEA Close Control E Range


GEA Close Control Schematic Diagram: "F" Version E Range


Schematic Diagram: "C" Version GEA Close Control E Range


GEA Close Control Ancillaries and Options E Range


Plinth For upflow units, a standard plinth is available that raises the Air Handling Unit 200 mm (or 400 mm) from the floor level to facilitate services entry. It is a plain sheetmetal box supplied complete with gasket and fixing bolts, and finished to match the Air Handling Unit.

Base Stand When the Air Handling Unit is to be installed before the installation of a raised floor, a matching Base Stand should be used to support it. This consists of a rigid frame of 6mm thick MS angle complete with adjustable feet. The upper face of the frame is lined with 3mm semi hard gasket. When ordering, specify the nominal height required, which normally will be the same as the overall height of the raised floor. The feet have an adjustment of ± 25 mm.

Ceiling Return Duct The Ceiling Return Duct is a rigid riveted sheetmetal assembly comprising of unit matched panels lined with 25 mm thick insulation. The duct, which is suitable for downflow units only, is bolted to the top of the Air Handling Unit on site. When ordering, specify the height between the top of the Air Handling Unit and the under side of the suspended ceiling. The overall height of the duct will be this dimension plus 50mm.

Horizontal Discharge Section The Horizontal Discharge Section consists of a double deflection grille fitted into a rigid sheetmetal box. The complete assembly is bolted to the top of the Air Handling Unit on site. The grille has two sets of blades, which allow for both vertical and horizontal directional adjustment of airflow. The standard height for this section is 500 mm.

Ceiling Discharge Section For upflow units, where the Air Handling Unit is required to discharge into the ceiling void, a Ceiling Discharge Extension is available. This consists of a rigid riveted sheetmetal assembly comprising of unit matched front; rear and end panels lined with 25 mm thick insulation. The extension is bolted to the top of the Air Handling Unit on site. When ordering specify the height between the top of the Air Handling Unit and the underside of the suspended ceiling. The overall height of the duct will be this dimension plus 50 mm.

High Efficiency Filters Higher specification filtration can be provided in place of the standard filters having an efficiency of 80 % ASHRAE 52/76 (Eurovent F7). Pre filters are fitted, before the main high efficiency filters, and are rated as G2. These filters are fitted in the return airside of the Air Handling Unit within the main cabinet.

Filter Gauge A dial type manometer can be installed to read the pressure drop across the filter to give an accurate indication of filter condition.

Ancillaries and Options GEA Close Control E Range


Fresh Air Kit and Filter Units can be supplied with a fresh air inlet connection and disposable fresh air filter element. This will admit approximately 35 % of the recirculated air volume. One or two may be fitted depending on requirements.

Special Colours Special Colours must be specified when ordering the Air Handling Unit (quote British Standard number, RAL number, or other, if known). If more than one colour is specified then state the colour of each panel.

Without Electric Heating All equipment associated with electric heating is removed from the Air Handling Unit.

Third Stage Electric Heating On 24, 34, 44 and 54 units where the standard heating capacity together with the fan heat gain is insufficient to meet demands, an additional third stage of electrical heating can be added. This additional stage of heating has a rating equivalent to half the electrical heating capacity of the standard unit, depending on the unit size. Models 64, 74, 84 and 94 are fitted with three stages of electric heating as standard.

L.P.H.W. Heating Units may be fitted with a Low Pressure Hot Water heating coil in place of the standard electrical heating. Water flow through the coil is controlled by a modulating 3-way valve.

Duties of these coils are nominally the same as standard electric heating, based on flow and return hot water temperatures of 82 °C and 71 °C respectively.

Without Humidifier All equipment associated with the humidifier is removed from the Air Handling Unit.

Water Detection Water Sensors, connected directly to the water detection module of the Air Handling Unit microprocessor control system, are located in: - - Condensate drain pan detecting undue water level. - Underfloor water tape, supplied loose with 5 metres of cable.

When water is detected, the Air Handling Unit's alarm system is activated and disables humidifier function.

Sump Pump Where, due to location, it is not possible to gravity drain units, a sump pump can be fitted to collect any condensate and pump it to the nearest convenient drain point (maximum available pump head 5.7 metres). For units fitted with humidifiers, a larger capacity sump pump is available to accommodate the additional discharge of hot water during humidifier drain down cycles (maximum available pump head 7 metres). Please note that when using a sump pump a minimum of a 200 mm high plinth is required.



Top Entry Pipework The “A” version Air Handling Unit pipework can be modified to allow entry/connection of services through the top of the unit. The “X” and “C” version Air Handling Unit pipework can be modified to allow pipework to exit at low level through the right-hand panel for routing and connection on site.

Hot Gas By-Pass "W" and "F" versions are fitted with hot gas by-pass compressor capacity control as standard. This consists of a hot gas control valve in the by-pass line between the discharge line of the compressor and the evaporator coil suction header, with the sensing line fitted in the suction line. "A" versions can be fitted with hot gas by-pass as an option if required. Hot gas by-pass can also be provided for Denco Condensing Units ("X" version), in which case a liquid injection valve is also fitted to avoid the compressor overheating.

Screwed Water Connections BSP screwed fittings supplied instead of the standard copper solder connections on “W” and “C” versions.

Reverse Fan Deck For applications where the air should be discharged "backwards" from the Air Handling Unit, the fan diaphragm can be reversed to ease the airflow pattern and reduce pressure drop.

Fan Guards The fan section can be separately enclosed with a perforated metal sheet as an additional safety precaution on opening the hinged front doors.

Fan Anti-Vibration Mounts (Standard Fans) Air Handling Units can be supplied with spring assisted anti-vibration mounts fitted to individual corners of the fan diaphragms, which are then fixed to the main diaphragm support rails.

Special Fan Motors For applications where fan power requirements exceed the capacity of the standard motors, higher power (up to four kW) motors can be fitted to most models with the exception of Upflow Ambicool or Combicool versions. Motors rated over three kW will not be able to use variable speed pulleys.

Twin Belts Fixed Twin grooved pulleys and belts giving a fixed speed can be provided for each fan / motor.

Hand/Auto Switches A hard wired switch assembly, fitted in the electrical control panel can be used as manual override or as automatic control function, and is intended as an aid to commissioning engineers.

Ancillaries and Options GEA Close Control E Range


Run Status Run Status is achieved by volt free terminals, located in the electrical box, for remote monitoring of the unit run (fans) operation.

Controller Remote Display The C3-05 Controller Display can be supplied remote from the Air Handling Unit, complete with interconnecting cable up to 1 kilometre.

Monitoring Display The Monitoring Display can be connected to a network of C3-05 Controllers to enable complete Air Handling Unit monitoring.

Electronic Expansion Valve (EEV) On DX units the EEV option can be fitted to replace the standard TEV. This consists of a valve, electronic driven module, pressure transducer and temperature sensor per refrigerant circuit.

Discharge Pressure Transducer On DX units a pressure transducer can be fitted to monitor the discharge pressure. It is recommended that the EEV option it fitted with the Discharge Pressure Transducer.

Remote Temperature and Humidity Sensor The temperature and humidity sensors Unit, fitted with the required length of cable (up to a maximum of 25 metres), can be supplied remote from the Air Handling.

Without Controls or Sensors The standard C3-05 microprocessor controls and sensors are omitted (to allow the fitting of an alternative control system, Refer to Denco Engineering Department for feasibility).

Winter Start Kit (ELATE) Generally recommended for temperatures between –25 °C and –40 °C, and comprises horizontal type liquid receiver with trace heater and pressure relief valve situated in a special section below the air cooled Condensing Unit / Condenser. However a base section will be required and will increase the overall height of the horizontal blow Condensing Units / Condensers by 400 mm.



Trend Interface Card The Trend interface is a small pcb which can be plugged into the C3-05 controller to provide it with Trend network capability.

The interface needs to be configured in order that the required controller variables are linked to appropriate Trend parameters; these then become accessible via the Trend network using standard Trend (text) communications. The interface provides CNC functionality.

- Flexible number of configuration modules - Peer to peer communications (IC Comms) - Suitable for field installation - Display and directory modules

RS232 Serial Card The RS232 Serial Card is used to interface the C3-05 controller directly to a standard HAYES modem. The following hardware signals can be managed: - Output, “request to send” (RTS) in parallel to “data terminal ready” (DTR). - Input, “carrier detected” (CD).

The maximum baud rate is 19200.

RS485 Serial Card The RS485 Serial Card is used to interface the C3-05 controller to an RS485 network.

The card guarantees the optical isolation of the controller from the RS485 serial network. The maximum baud rate is 19200 (adjustable in software).

Lonworks Serial Card

The LonWorks Serial Card is used to interface the C3-05 controller to a Lonworks network.

The type of interface on the LonWorks network side is: - PCO20000F0 – interface to FTT-10A 78 Kbs (TP/FT-10).

The baud rate of the C3-05 controller must be set to 4800.

PCOWEB Interface The pCOWeb Interface allows connection to TCP/IP and SNMP protocols on the Ethernet standard and BACnet both on the Ethernet and EIA485 standards.

Due to our policy of continuous development and improvement, the specifications and data herein are subject to change without notice. We must therefore reserve the right to supply equipment that may differ from that described and illustrated herein. All information, including illustrations, contained in this brochure, is believed to be accurate and reliable. Users, however, should independently evaluate the suitability of each product for their own application. GEA makes no warranties as to the accuracy or completeness of the information, and disclaims any liability regarding its use.

GB Denco Ltd.UK-HR4 8DS HerefordTel. +44 / 1432 / 277 277

N GEA Klimaprodukter ASN-0484 OsloTel. +47 / 220 / 27990

UA GEA Ukraina t.o.v.UA-01135 KyivTel. +38 / 044 / 4619356

TR ISISANTR-80700 BalmumcuIstanbulTel. +90 / 212 / 2757171

SLO GEA KlimatizacijskaTehnika d.o.o.SI-1000 LjubljanaTel. +386 / 1 / 2573850

SK GEA Klimatizácia s.r.o.SK-83104 BratislavaTel. +421 / 7 / 44457917

GEA KlimatehnikaRS-11070 Novi BeogradTel. +381 / 11 / 3193955

SRB

S GEA EXOSVentilation ABS-74528 EnköpingTel. +46 / 171 / 85530

RUS GEA KondicionerMoskvaRU-105094 MoskvaTel. +7 / 495 / 9566674

P Nónio, Lda.P-1269-090 LisboaTel. +351 / 21 / 3826160

LV GEA Klimatechnik UABLT-01141 VilniusTel. +370 / 5 / 2106060

LT GEA Klimatechnik UABLT-01141 VilniusTel. +370 / 5 / 2106060

L GEA Happel LuxembourgL-4940 BascharageTel. +352 / 26 / 502970

IS Rafn JenssonIS-110 ReykjavikTel. +354 / 56 / 780-30

PL GEAKlimatyzacja Sp. z o.o.PL-54610 WroclawTel. +48 / 71 / 3737952

HR GEA Klima-rashladnatehnika d.o.o.HR-10000 ZagrebTel. +385 / 1 / 6064900

FIN OY TEKNOCALOR ABFIN-01300 VantaaTel. + 358 / 9 / 82546020

F GEA Happel France sarlF-59436 Roncq CedexTel. +33 / 3 / 20689020

EST GEA Klimatechnik UABLT-01141 VilniusTel. +370 / 5 / 2106060

E GEA Air TreatmentMarketing ServicesInt. GmbH - oficina EspañaE-28036 MadridTel. +34 / 91 / 3837701

DK GEA Klimateknik ApSDK-2610 RødovreTel. +45 / 38 / 887070

H GEA Klimatechnika KftH-1037 BudapestTel. +36 / 1 / 4393200

D GEA HappelKlimatechnik GmbHD-44625 HerneTel. +49 / 2325 / 468-00

CZCZ-46312 LiberecTel. +420 / 48 / 5225-111GEA Klimatizace spol. s r.o.CZ-46312 LiberecTel. +420 / 48 / 5225-303

GEA LVZ, a.s.

CH GEA KlimatecSchweiz AGCH-3065 Bolligen-StationTel. +41 / 31 / 9171919

BY GEA Klimatechnik UABLT-01141 VilniusTel. +370 / 5 / 2106060

BIH GEA KlimatehnikaRS-11070 Novi BeogradTel. +381 / 11 / 3193955

BG EVISS Ltd.BG-7000 RousseTel. +359 / 82 / 81000

B GEA Happel Belgium N.V.B-1130 BrusselsTel. +32 / 2 / 2406161

A GEAKlimatechnik GmbHA-4673 GaspoltshofenTel. +43 / 7735 / 8000-0

NL GEA HappelNederland B.V.NL-2909 LLCapelle a/d IjsselTel. +31 / 10 / 2350606

RO GEA Klimatechnik s.r.l.RO-300222 TimisoaraTel. +40 / 356 / 423703

GEA KlimatehnikaRS-11070 Novi BeogradTel. +381 / 11 / 3193955

MWE

Our Market in Europe

Air Treatment Division For detailed information on all corporate areas,go to www.gea-airtreatment.com or contactus by email [email protected] company of GEA Group

PR-2

006-

0296

-GB

• S

ub

ject

to

mo

dif

icat

ion

s •

Stat

us

05/2

007

• C

op

yrig

ht

GEA

Air

Tre

atm

ent

DATA & FACTS GEA Close Control - Delta GCI · GEA Close Control Unit Weights / Access / Typical...

Documents

Transcript of DATA & FACTS GEA Close Control - Delta GCI · GEA Close Control Unit Weights / Access / Typical...