Mechanical Data – W2W2 Continued
SC31D100-W2W2 SC31D120-W2W2 SC31D130-W2W2
2 x DR70 2 x DR95 2 x DR95
Capacity
(1)
Nom Cooling (Gross) – W2 kW 98.6 112.4 120.2
Total Heat of Rejection – W2 kW 126.6 144.6 154.7
Capacity Steps 6 4 6
Fan Gain (5) kW 1.46 2.51 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
Kg 1390 / 1400 1400 / 1410 1400 / 1420
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 6/1 4/1 6/1
Condenser
Stainless Steel Brazed Plate
Water Volume l 16.7 16.7 16.7
Water Flow l/s 3.09 3.53 3.78
Pressure Drop Condenser kPa 27.88 35.79 40.63
Dry Cooler
Water Volume l 55.9 55.9 55.9
Flowrate l/s 3.09 3.53 3.78
Pressure drop kPa 52 62 70.2
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 1116 / 1510 1347 / 1520 1480 /1510
Maximum ESP Pa 478 232 77
Nominal Airflow m³/s 6.1 7.3 7.9
Compressor – Scroll
Configuration – W2W2
Dual Circuit - Circuit 1 Tandem Compressors (Refrigeration)
Circuit 2 Tandem Compressors (Refrigeration)
Quantity – W2W2 2 2 2
Oil Charge Volume – W2W2 l 2 x 3 + 2 x 3.3 2 x 3.3 2 x 3.3
Oil Type Polyolester
Refrigeration
Dual Circuit
Refrigerant control and type Thermostatic Expansion Valve (Optional EEV)
Refrigerant type R410A
Holding Charge Inert Gas
Charge (Per Circuit) kg 12 12 12
Connections
Water Inlet / Outlet –W2 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 -
(3)
Nom Heating (Gross) kW 14.6 15.8 16.3
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
Fan Gain kW 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 (5) kW N/A N/A N/A
Low Pressure Hot Water
(4) Copper Tube/Aluminium Fin
Capacity Gross kW 40.6 43.8 45.2
Water Flow (Nominal) l/s 0.9 0.97 1.01
Pressure drop kPa 35.9 37.4 38.8
LPHW Connection Sizes (5) mm 22 22 22
(1) Entering air 24°C/45% RH condensing water in / out: 35/40°C
(2) Machine weight Includes a refrigerant charge / Operating weight includes calculated water volume
(3) Based on air temperature of 15.5 °C leaving the evaporator coil
(4) Based upon low pressure hot water 82 °Cinlet/71°C outlet. Air on 20°C.
(5) Fan gain based on 25 Pa ESP @ nominal air volume. Fan gain figure will change as airflow and ESP change.
W2W2
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