5
NSKW INSTALLATION MANUAL
BS EN 14511-2 Performance Ratings
Heating Performance
Model
B0/W35
W10/W35
B0/W45
B5/W35
W10/W45
Capacity
Output
kW
COP
Power
Input
kW
Capacity
Output
kW
COP
Power
Input
kW
Capacity
Output
kW
COP
Power
Input
kW
Capacity
Output
kW
COP
Power
Input
kW
Capacity
Output
kW
COP
Power
Input
kW
06
5.80
3.80
1.53
7.30
4.80
1.52
5.50
2.90
1.90
6.60
4.30
1.54
7.10
3.70
1.92
08
8.30
4.20
1.98
10.6
5.30
2.00
8.00
3.20
2.50
9.50
4.80
1.98
10.2
4.10
2.49
12
11.6
4.20
2.80
14.4
5.30
2.72
11.3
3.20
3.53
13.3
4.80
2.77
14.2
4.10
3.46
17
16.6
3.70
4.49
21.4
4.70
4.55
15.9
2.90
5.50
19.0
4.30
4.42
20.4
3.70
5.51
All ratings based upon 220V operation
All ratings based on new heat pump with clean heat exchangers
9/26/11
Cooling Performance
Model
W30/B0
W30/W12
W30/W23
Capacity
Output kW
EER (W/W)
Power Input
kW
Capacity
Output kW
EER (W/W)
Power Input
kW
Capacity
Output kW
EER (W/W)
Power Input
kW
06
4.00
2.80
1.43
5.90
4.10
1.44
8.10
5.60
1.45
08
6.10
3.00
2.03
9.00
4.40
2.05
12.4
6.00
2.07
12
8.20
2.90
2.82
12.0
4.30
2.80
16.6
5.80
2.86
17
11.2
2.60
4.30
16.4
3.80
4.32
22.7
5.20
4.37
All ratings based upon 220V operation
All ratings based on new heat pump with clean heat exchangers
9/26/11
Legend
ABBREVIATIONS AND DEFINITIONS:
COP = coefficient of performance
EER = cooling energy efficiency (TC/kW)
ELT = entering load fluid temperature
EST = entering source fluid temperature to heat pump
FLA = full load amps
FtHd = pressure drop in feet of head
gpm = US gallon per minute
HC
= heating capacity in kW
HE
= heat of extraction in kW
HR
= heat rejected in kW
kPa =
kilopascal
kW =
kilowatt
L/s
= liters per second
LLT = leaving load fluid temperature from heat pump
LRA = locked rotor amps (starting current)
LST = leaving source fluid temperature from heat pump
LWPD = load heat exchanger water pressure drop
MCC = maximum continuous current
PD =
pressure
drop
psi
= pressure drop in pounds per square inch
P/T =
Pressure/Temperature
RLA = run load amps
TC
= total cooling capacity in kW
W =
Watt
CONVERSIONS:
x
°F =
(
x
- 32)/1.8°C
1 bar = 100 kPa
1 gpm = 0.0631 L/s
1 US Gallon = 3.785412 L
1 Btu/h
= 0.29037 W
