Mechanical Data – W2F0 Continued
SC31D077-W2F0-0 SC31D080-W2F0-0 SC31D083-W2F0-0
Standard Dry Cooler Match 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) - F0 (Free Cooling) (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 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
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
Condenser
(3) Stainless steel Brazed Plate
Water Volume l
Glycol Flow l/s 4.7 5 5.3
Pressure Drop Condenser kPa 58 64.4 71.2
Glycol Coil
Copper Tube/Turbulated Hydrophilic Coated Aluminium Fins
Water Volume l 52.3 52.3 52.3
Glycol Flow l/s 4.7 4.7 4.7
Pressure Drop F0 kPa 115.2 126.7 138.8
Unit
Water flow l/s 4.7 5 5.3
Pressure drop kPa 173.21 191.13 210.04
Dry Cooler
Water Volume L 55.9 55.9 55.9
Flowrate l/s 4.7 5 5.3
Pressure Drop kPa 100 110.3 121.5
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 ESP/ maximum ESP rpm 1479 / 1520 1479 / 1520 1479/ 1520
Maximum ESP Pa 77 77 77
Nominal Airflow m³/s 7.9 7.9 7.9
Compressor - Scroll
Configuration
Dual Cool - Circuit 1 Tandem Compressors (Water Cooled)
Circuit 2 Free Cooling
Quantity - W2 2 2 2
Oil Charge Volume - W2 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 54 54 54
Condensate Drain Hose mm 22 22 22
Filtration Disposable to BS EN 779-G4
Quantity 4 4 4
OPTIONAL EXTRAS
Hot Gas Reheat - X
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 Fan 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
Second upgrade Fan 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 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 condenser water in / out 35 / 40°C
(2) Entering air 24°C/ 45% RH condenser water in / out 7/12°C and based on water.
(3) Pressure drop through condenser, free cooling coil, 3 port valve, Head pressure control valve and unit pipe work
(4) Based upon low pressure hot water 82°C inlet/71°C outlet. Air on 20°C
(5) Fan gain based on 25Pa ESP @ nominal air volume. Fan gain will change as airflow and ESP change.
W2F0
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