A.O. Smith ProLine XE User Manual

INSTALLATION
14 • Residenal Hybrid Electric Heat Pump Water Heater Use and Care Guide

If your home has copper water pipes,
you can solder the water pipe connec-
ons or use compression ngs which
don’t require soldering. Compression
ngs are easier to install than solder
-
ing pipe. Check with local plumbing
ocials to determine what types of
pipe materials are suitable for your
locaon. Do not use lead-based solder.
NOTICE! Do not solder pipes while
they are aached to the water heater.
The water heater’s inlet and outlet
connecons contain non-metallic parts
which could be damaged. The proper
way to connect the water heater to
copper water pipes is as follows:
• Solder a short length of pipe (about
a foot or so) to a threaded adapter
using only lead free solder. Aach
the threaded adapters to the water
heater’s connecons (using Tef
-
lon® tape or pipe joint compound).
Connect the home’s water pipes by
soldering, keeping the connecons at
the water heater cool with wet rags.
 Do not over apply joint com-
pound.
This water heater model con-
tains an outlet connecon (J-tube) that
has an orientaon mark that must line
up with arrow (in a 12 o’clock posion).
3
Connect the hot water supply
using 3/4 inch NPT to the hot
water outlet. Follow the same
connecon guidelines as for the cold
water supply.
4
Install insulaon on the water
pipes. Insulang the hot water
pipes can increase energy
eciency.
5
Double check to make sure
the hot and cold water pipes
are connected to the correct
hot and cold water ngs on the
water heater.
6
If needed, install a Pressure
Reducing Valve and a Thermal
Expansion Tank.
Figure 18 - A Pressure Reducing Valve is
required if your home’s water pressure is
above 80 psi.
Figure 19 - The Thermal Expansion Tank
should be pressurized with air, to match the
home’s incoming water pressure.



To remove air from the tank and allow
the tank to ll completely with water,
follow these steps:
1
Remove the aerator at the
nearest hot water faucet. This
allows any debris in the tank
or plumbing system to be washed out.
2
Turn the cold water supply
back on.

Figure 20 - Fully open the cold water supply
valve.
INSTALLATION

A.O. Smith ProLine XE Specifications

General

Brand	A.O. Smith
Model	ProLine XE
Category	Water Heater
Language	English