Precision Air Conditioning
SmartCool
TM
– D
Precision Air Conditioning
131
Installation, Maintenance and Commissioning Manual :6877419 02/2013
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.
W
2
F0