Installation Guide

14 • Residen al Gas Water Heater Use and Care Guide for Manufactured Homes
INSTALLATION
INSTALLATION
reuse the old T&P Relief Valve. A new
T&P Relief Valve comes with your new
water heater.
Figure 13: Removing the T&P Relief Valve
discharge pipe.
10
Allow the vent pipe (roof
jack) and dra hood to cool.
Once cooled, disconnect the
vent pipe from the dra hood. You
may need to support the vent pipe
un l the new water heater is in place.
Figure 14: Disconnect the vent pipe (roof jack)
from the draft hood.
11
Disconnect the water pipes.
Many water pipes are
connected by a threaded
union which can be disconnected with
wrenches. If you must cut the water
pipes, cut the pipes close to the water
heater’s inlet and outlet connec ons,
leaving the water pipes as long as
possible. If necessary, you can make
them shorter later when you install the
new water heater.
12
Confi rm the manual gas valve
for the water heater’s supply
line is turned off . Disconnect
the gas line from the water heater’s
gas control valve and cap it.
13
Remove the old water heater.
Use an appliance dolly or
hand truck to move the water
heater.
WARNING! Use two or more
people to remove or install a water
heater. Failure to do so can result in
back or other injury.
Step 4:
Installing the New
Water Heater
1
Completely read all instruc-
 ons before beginning. If you
are not sure you can safely
complete the installa on, seek assis-
tance from any of the following sources:
• Schedule an appointment with
a qualifi ed person to install your
water heater.
• Contact the manufacturer listed on the
water heater’s ra ng plate .
2
Install a metal drain pan that
is piped through the structural
fl oor or to an adequate drain.
Metal Drain Pan
Piped to Drain
or Through Floor
to the Outside
Figure 15: Metal drain pan piped through floor
or to an adequate drain.
3
Set the water heater in place
taking care not to damage the
drain pan. When installing
directly on carpet, the water heater
must be installed on a wood or metal
base that extends beyond the dimen-
sions of the water heater (width and
depth) by at least 3 inches (76.2 mm)
in any direc on. If the water heater is
installed on carpet in an alcove or
closet, the en re fl oor must be covered
by a wood or metal panel.
NOTICE: Most codes require se ng
the water heater in a metal drain pan
piped to an adequate drain or external
to the structure. The drain pan helps
avoid property damage which may oc-
cur from condensa on or leaks in the
piping connec ons or tank. The drain
pan must be at least two inches wider
than the diameter of the water heater.
Install the drain pan so the water level
is limited to a maximum depth of
1-3/4”.
4
Verify that the water heater is
set in place properly. Check
that:
• There is adequate space to install
the T&P Relief Valve discharge
pipe and that it can be piped to a
separate drain (and not into the
drain pan).
• There is adequate access and
space around the water heater
for future maintenance.
The water heater is installed ver cally.