HWM-H-IOM (10/14)
Page 9
4. The Primary Circuit
A. Plumbing
The primary circuit in a typical HWM installation is shown in Figure 4.
Figure 4. Typical HWM Primary Circuit Plumbing
IMPORTANT!
The hydronic water module (HWM) is to be mounted on a wall or fixed
rigidly in place. The HWM is to be placed no more than 10 FEET AWAY
FROM THE STORAGE WATER HEATER. Orient the HWM with “pipes
up” only. All interconnecting water piping between the HWM and the
water tank are to be insulated with ½” wall thickness Armflex
®
, Insul-
Lock
®
or the equivalent insulation.