Pump Curves; Operating Sequences - Grant Aerona HPAW110 Installation And User Instructions Manual

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