Installation, Maintenance and Commissioning Manual :6877419 02/2013
Mechanical Data- W2C0 Continued
SC31D077-W2C0 SC31D080-W2C0 SC31D083-W2C0
1 x DR95 1 x DR95 (EC) 1 x DR95 (EC)
Capacity
Nom Cooling (Gross) – W2 (1) kW 75.9 79.9 83.7
Nom Cooling (Gross) – C0 (2) kW 135.2 135.2 135.2
Total Heat of Rejection – W2 kW 96.7 102.4 107.9
Capacity Steps 2 3 2
Fan Gain (6) kW 3.22 3.22 3.22
Dimensions – W x D x H
Mm 3113 x 890 x 1980 3113 x 890 x 1980 3113 x 890 x 1980
Weight – Machine / Operating
(3)
Kg 1230 / 1280 1230 / 1280 1230 / 1290
Construction
Panels: Galvanised Sheet Steel, Epoxy Baked Powder Paint - Black Grey (RAL 7021) /
Material/Colour Frame: Anodised Aluminium Frame with Black Nylon Corners
Evaporator
Rifled Copper Tube/Turbulated Hydrophilic Coated Aluminium Fins
Cooling/Dehum Stages 2/1 3/1 2/1
Cooling Coil – C0
Copper Tube/Turbulated Hydrophilic Coated Aluminium Fins
Cooling /Dehum Stages 1 (Modulated) / 1
Water Volume l 52.3 52.3 52.3
Water Flow l/s 5.16 5.16 5.16
Pressure Drop C0 kPa 65.18 65.18 65.18
Condenser
Stainless steel Brazed Plate
Water Volume l 4.1 4.1 4.1
Water Flow l/s 4.72 4.99 5.16
Pressure Drop Condenser kPa 72.96 80.96 89.44
Dry Cooler
Water Volume l 55.9 55.9 55.9
Flowrate l/s 4.72 4.99 5.16
Pressure Drop kPa 93.23 110 116.3
Fan Motor
Backwards Curved, Centrifugal direct drive
Motor Type EC EC EC
Quantity x Motor Size kW 3 x 3.1 3 x 3.1 3 x 3.1
Speed @25Pa / Maximum ESP RPM 1479 / 1520 1479 / 1520 1479 / 1520
Maximum ESP Pa 77 70 70
Nominal Airflow m³/s 7.9 7.9 7.9
Compressor – Scroll
Configuration – W2C0 Dual Cool - Circuit 1 Tandem Compressors (Refrigeration) / Circuit 2 Chilled water
Quantity – W2C0 2 2 2
Oil Charge Volume – W2C0 l 2 x 3.3 (1 x 3.3)+(1 x 3.6) 2 x 3.6
Oil Type Polyolester
Connections
Water Inlet / Outlet –W2 mm 42 42 42
Water Inlet / Outlet – C0 mm 42 42 42
Condensate Drain Hose mm 22 22 22
Filtration Disposable to BS EN 779-G4
Quantity 4 4 4
OPTIONAL EXTRAS
Hot Gas Reheat -
(4)
Nom Heating (Gross) kW 16.1 16.1 16.1
Electric Heating (Total)
kW 31.5 31.5 31.5
Humidifier
Capacity kg/hr 15 15 15
Feed/Drain 3/4" BSPF Braided flexible hose / 19mm hose connection
Condensate Pump
Head m 10.8 10.8 10.8
Flow l/m 5 5 5
Drain 10mm Stainless steel Stub Connection
First upgrade Motor - EC Motor
Quantity x Motor Size kW N/A N/A N/A
Speed @ 25Pa / Maximum ESP rpm N/A N/A N/A
Maximum ESP Pa N/A N/A N/A
Second upgrade Motor - EC Motor
Quantity x Motor Size kW N/A N/A N/A
Speed @ 25Pa / Maximum ESP rpm N/A N/A N/A
Maximum ESP Pa N/A N/A N/A
Fan Gain (6) kW N/A N/A N/A
Low Pressure Hot Water
(5) Copper Tube/Aluminium Fin
Capacity Gross kW 45.2 45.2 45.2
Water Flow (Nominal) l/s 1.01 1.01 1.01
Pressure drop kPa 38.8 38.8 38.8
LPHW Connection Sizes mm 22 22 22
(1) Entering air 24°C/45% RH condensing water in / out: 35/40°C
(2) Entering air 24°C/45% RH water 7°C/12°C
(3) Machine weight Includes a refrigerant charge / Operating weight includes calculated water volume
(4) Based on air temperature of 15.5 °C leaving the evaporator coil
(5) Based upon low pressure hot water 82 °C inlet / 71°C outlet. Air on 20°C.
(6) Fan gain based on 25 Pa ESP @ nominal air volume. Fan gain figure will change as airflow and ESP change.
W2C0
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