Grant Products HPAW155 - Manual (Page 9)

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