Plumbing
01
The plumbing installation
must be completed before
03
the electrical installation.
Residential plumbing systems with
unstable pressure or pressure above 5
bar require the application of a pressure
stabilizer valve, set to 43-72 psi (3–5 bar).
05
Copper water pipes are recommended for
use within three feet of the unit's water inlet
and outlet. Other types of piping can be used
provided that are rated for high temperature
applications.
06
If installing the heater on an upper floor or in
an attic, be sure installation is in compliance
with local code. Install a drip pan with
drainage, or a leak detector and automatic
shutoff valve, to prevent damage in case of
a leak.
08
Before proceeding to electrical
installation, run water through the unit
for several minutes to flush out any air
bubbles from the water line.
02
A pressure relief device (PRD) must be
installed on the heater's incoming water
supply line prior to installing the unit. The
maximum recommended operating water
pressure is 116 psi (8 bar).
04
The plumbing installation
requires pipes or reinforced
flexible hoses that can
withstand pressure up to
116 psi (8 bar) and that are
rated for high temperature
applications.
07
After plumbing installation
is completed, carefully
inspect all fittings and
connections, and the
pressure relief device for
leaks.
4