II. PLUMBING HOOK-UP
1)
The unit is supplied with ½” compression fittings (Figure 2a ).
2) DO NOT USE PIPE DOPE AND DO NOT SOLDER TO THE INLET OR OUTLET.
3) Take care to ensure that the pipes are correctly aligned with the inlet and outlet bosses
in order to avoid excessive stress on the heater body molding.
NOTE: When soldering pipe joints remove heater from the wall. Serious damage can occur
if any soldering is done while pipes are connected to the heater.
Run water through the supply pipe to remove all debris from the pipe before
connecting the heater. Failure to do so could cause damage to the flow switch.
4) Install isolating valves (full flow ball valve type) on both inlet and outlet pipes. This allows unit
to be isolated for maintenance purposes. (Fig. 2b)
5) When all plumbing is complete, fully check the system for water leaks at all the plumbing
connections. If any leaks are present take corrective action. Then fully open both inlet and
outlet BALL VALVES, run the hot water outlet fed by this heater for a minute or two, until the
water flow is continuous, free from “gulping” and from all visible air pockets.
NOTE:
ALL MOUNTING AND PLUMBING MUST BE COMPLETE BEFORE YOU
PROCEED WITH ELECTRICAL HOOK-UP.
TEST THE INSTALLATION FOR LEAKS BEFORE CONNECTING THE
ELECTRICAL SUPPLY.
5
Figure 2a
Hot outlet
½” Compression Fitting
DO NOT
SOLDER
Cold inlet
½” Compression Fitting
DO NOT SOLDER
Inlet filter
1 1/2 “
