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2.5 Pump Curves
6
5
4
3
2
1
0
0
0.5
Figure 2-10: Pump curve for HPAW65, HPAW85, HPAW110 & HPAW130
15.5kW Pump Curve
15
10
5
0
0
1.2
Figure 2-11: Pump curve for HPAW155
2.6 Heat Pump Operating Sequences
ON
Pump
OFF
ON
Fan
OFF
ON
Comp
OFF
OFF
ON
Demand
OFF
0
10
60
(on)
Figure 2-12: Normal operating sequence
Wilo-Classic Star
1
1.5
2
Flow (m
3
/h)
PUN-200E
2.4
3.6
Flow (m
3
/h)
Pump
Fan
Comp
4-way
valve
Defrost
signal
off
BTC
Time secs
Pump delay
time
Figure 2-13: Defrost cycle
3)
4.8
ON
ON
ON
ON
ON
OFF
OFF
ON
OFF
ON
OFF
0
25 30
0
(on)
(off)
ON
OFF
OFF
25 30
Time secs
5
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