1) The unit is supplied with compression fittings, USE THESE; DO NOT USE TAPERED
THREADED PIPE FITTINGS AND DO NOT SOLDER PIPE TO THE INLET OR OUTLET.
2) 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.
3) Install isolating valves (full flow ball valve type) on both inlet and outlet pipes. This allows
unit to be isolated for maintenance purposes. (see Fig. 1)
4) When all plumbing is complete, fully check the system for water leaks at all plumbing
connections. If leak is present take corrective action. If leak is at compression fitting slowly
tighten compression nut until it stops. Fully open both inlet and outlet ball valves.
Run all hot water outlets fed by this heater one at a time for a minute or two until the water
flow is continuous, free from ”gulping” and from all visible air pockets.
PLUMBING HOOK-
UP
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.
7 “
Hot outlet
compression
fitting
DO NOT
SOLDER
Cold inlet
compression
fitting
DO NOT
SOLDER
4
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