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HEAT PUMP AND TANK ASSEMBLY
Model
953060DP/
mm
953060DV
953079DP/
mm
953079DV
953101DP/
mm
953101DV
953126DP/
mm
953126DV
953152DP/
mm
953152DV
953202DV/
mm
953202DV
Note:
Header pipe sizing is based on 20 bends and a total length of primary and
return piping of:
-
40m for heat pumps under 120 kW, excluding Equaflow manifolds on
storage tanks and heat pumps.
-
60m for heat pumps above 120 kW, excluding Equaflow manifolds on
storage tanks and heat pumps.
for maximum velocity of 1.2m/s. One pump per heat pump
Multiple heat pumps MUST be installed using Equa-Flow® principles to ensure
the demand on each heat pump (or storage tank) in the bank is the same as any
other. To achieve this, the following is necessary:
1.
The inlet manifolds must be designed to balance the flow to each heat
pump i.e. each branch line must be the same diameter and length.
2.
The outlet manifold must be designed to balance the flow from each heat
pump i.e. each branch line must be the same diameter and length.
3.
The first heat pump in must be the last heat pump out.
Note: Inlet and outlet water isolation valves MUST be installed at each heat pump
to enable each heat pump to be individually isolated for servicing. The inlet
isolation valve MUST be installed before the pump to also enable the pump to
be isolated for servicing.
Header Size for Number of
Heat Pumps in Parallel
1
2
3
80
100
125
80
125
-
100
125
-
100
150
-
125
200
-
150
200
-
45
Primary
Pump
4
Model
CRN 32-2,
150
4 Pole
CRN 45-2-2,
-
4 Pole
CRN 45-2-2,
-
4 Pole
CRN 64-2-1,
-
4 Pole
CRN 64-2-1,
-
4 Pole
CRN 95-1,
-
4 Pole
Primary
Pump
Flange
DN65,
PN40
DN80,
PN40
DN80,
PN40
DN100,
PN16
DN100,
PN16
DN100,
PN16
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