Precision Air Conditioning
SmartCool
TM
– D
Precision Air Conditioning
109
Installation, Maintenance and Commissioning Manual :6877419 02/2013
Mechanical Data- W2C0 Continued
SC25D045-W2C0
SC25D050-W2C0
SC25D055-W2C0
Standard Dry Cooler Match
1 x DR55
1 x DR70
1 x DR70
Capacity
Nom Cooling (Gross) – W2
(1)
kW
43.8
47.8
54.6
Nom Cooling (Gross) – C0
(2)
kW
71.2
74.8
79.8
Total Heat of Rejection – W2
kW
54.5
60.2
68.9
Capacity Steps
2
2
3
Fan Gain
(6)
kW
2.24
2.65
3.01
Dimensions
– W x D x H
Mm
2549 x 890 x 1980
2549 x 890 x 1980
2549 x 890 x 1980
Weight
– Machine / Operating
(3)
Kg
980 / 1020
1050 / 1090
1050 / 1100
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
2/1
2/1
Cooling Coil – C0
Copper Tube/Turbulated Hydrophilic Coated Aluminium Fins
Cooling /Dehum Stages
1 (Modulated) / 1
Water Volume
l
42.2
42.2
42.2
Water Flow
l/s
3.81
4.02
4.32
Pressure Drop FC
kPa
57.4
55.2
61.68
Condenser
Stainless steel Brazed Plate
Water Volume
l
6.1
9.9
9.9
Water Flow
l/s
2.66
2.95
3.38
Pressure Drop Condenser
kPa
69.06
29.79
38.50
Dry Cooler
Water Volume
L
43.2
55.9
55.9
Flowrate
l/s
2.66
2.95
3.38
Pressure Drop
kPa
33.7
41.8
58.8
Fan Motor
Backwards Curved, Centrifugal direct drive
Motor Type
AC
AC
AC
Quantity x Motor Size
kW
3 x 2.38
3 x 2.38
3 x 2.38
Speed @25Pa / Maximum ESP
RPM
1092 / 1364
1220 / 1360
1360 /1360
Maximum ESP
Pa
328
188
20
Nominal Airflow
m³/s
5.3
5.9
6.5
Compressor – Scroll
Configuration – W2C0
Dual Cool – Circuit 1 Tandem Compressors (Water Cooled) / Circuit 2 Chilled Water
Quantity – W2C0
2
2
2
Oil Charge Volume – W2C0
l
2 x 1.57
2 x 3
2 x 3
Oil Type
Polyolvinyl
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
11.5
12.2
12.2
Electric Heating (Total)
kW
21
21
31.5
Humidifier
Capacity
kg/hr
8
8
8
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
Backwards Curved, Centrifugal direct drive
Quantity x Motor Size
kW
3 x 2.2
3 x 2.2
3 x 2.2
Speed @ 25Pa / Maximum ESP
rpm
1074 / 1360
1200 / 1360
1337 / 1360
Maximum ESP
Pa
314
188
45
Fan Gain
(6)
kW
1.4
1.92
2.6
Second upgrade Motor - EC Motor
Backwards Curved, Centrifugal direct drive
Quantity x Motor Size
kW
3 x 3.1
3 x 3.1
3 x 3.1
Speed @ 25Pa / Maximum ESP
rpm
1095 / 1510
1225 / 1510
1254 / 1510
Maximum ESP
Pa
464
337
195
Fan Gain
(6)
kW
1.4
1.92
2.6
Low Pressure Hot Water
(5)
Copper Tube/Aluminium Fin
Capacity Gross
kW
32.5
35.7
35.7
Water Flow (Nominal)
l/s
0.72
0.79
0.79
Pressure drop
kPa
20.2
21.8
21.8
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.
W
2
C
0