Rheem 953060DP Owner's Manual And Installation Instructions page 44

HEAT PUMP AND TANK ASSEMBLY
PRIMARY CIRCULATOR
Each heat pump requires a primary circulator to ensure the correct flow rate and
temperature rise is achieved. Where more than one heat pump is installed the
common manifold must be installed using the Equa-Flow
must be sized to accommodate the total flow of all the primary pumps running
simultaneously.
Header pipe sizing is based on one pump per heat pump with a total length of
40m of primary flow and return piping (if the heat pump capacity is below 120
kW), or 60m of primary flow and return piping (if the heat pump capacity is above
120 kW), and 20 x 90
and heat pumps at 1.2m/sec velocity. If this specification is exceeded consult
Rheem before continuing with the installation.
Refer to tables below for heat pump flow rate and pressure drop specifications
to aid in appropriate pipe sizing and pump selection.
Note: faults caused by incorrect pipe sizing and/or pump selection are not
covered by warranty.
Model
953060DP/
953060DV
953079DP/
953079DV
953101DP/
953101DV
953126DP/
953126DV
953152DP/
953152DV
953202DP/
953202DV
o
bends, excluding Equa-flow manifolds on storage tanks
Design Pressure
Drop (kPa)
50
50
50
50
50
50
44
®
manifold system and
Design Flow
Rate (L/sec) pipe size (DN)
3.63
4.89
6.04
7.90
9.54
12.66
Inlet/Outlet
65
80
80
100
100
125