Install Condensate Drain Lines; Connect The Temperature And Pressure Relief Valve/Pipe; Condensate Pump Wiring; The T&P Relief Valve Discharge Pipe Installed Properly - A.O. Smith ProLine XE Installation Instructions And Use & Care Manual

INSTALLATION
Condensate Drain
Access Cover
Primary Drain
Connection
Secondary Drain
Connection
Overflow Slot

Condensate Pump Wiring

(Loop Located Close to the Drain Connections)
Figure 14 - Condensate Pump Wiring
Step 6:
Install Condensate
Drain Lines:
NOTE: When making condensation
connections to the primary connec-
tion DO NOT overtighten! These con-
nections should be HAND TIGHTENED
ONLY. Overtightening could crack or
damage the condensate drain pan.
• Plastic pipe or tubing must be
used to connect the condensate
drain to a suitable drain or con-
densate pump.
• Condensate drain lines should
be installed in conditioned areas
only.
• Do not connect condensate
drain lines with other drain or
discharge lines into a single (com-
mon) pipe or line. Each line (con-
densate drain line, temperature
and relief valve discharge pipe,
etc.) should be independently
run to an adequate drain.
• Slope the condensate drain lines
toward the inside floor drain or
condensate pump.
• The condensate drain lines and
connections to the drain piping
must comply with all local codes.
12 • Residential Hybrid Electric Heat Pump Water Heater Use and Care Guide
• Use appropriate fittings and
primer to cement the condensate
drains to the heat pump drain
pan.
• If a condensate pump is installed,
it should be wired to shut off the
heat pump in the event the con-
densate pump fails or the float
switch in the pump activates (see
step 5 on page 11).
Using 3/4" PVC piping, a 90°
1
elbow that is 3/4" slip & 3/4"
NPT and an approved sealant
(none supplied with unit), attach the
elbow to the primary drain connec-
tion and insert the PVC pipe into the
female end allowing enough length to
access an adequate drain.
Using 1/2" ID rubber or flexi-
2
ble plastic tubing, slip one
end over the secondary drain
connection allowing enough length to
access an adequate drain.
Step 7:
Connect the Tempera-
ture and Pressure (T&P)
Relief Valve/Pipe
Most T&P Relief Valves are pre-
installed at the factory. In some cases,
they are shipped in the carton and
must be installed in the opening
marked and provided for this purpose
and according to local codes. .
WARNING! To avoid serious injury
or death from explosion, install a T&P
Relief Valve according to the following
instructions:
If your water heater does not have
a factory installed T&P Relief Valve,
install the new T&P Relief Valve that
came with your water heater. Do not
reuse an old T&P Relief Valve. Install
a T&P Relief Valve discharge pipe
according to local codes and the fol-
lowing guidelines:
The discharge pipe should be
1
at least 3/4" inside diameter
and sloped for proper
drainage. Install it to allow complete
drainage of both the T&P Relief Valve
and the discharge pipe.
The discharge pipe must
2
withstand 250°F (121°C)
without distortion. Use only
copper or CPVC pipe. Most homes
use copper water pipes or cross-linked
polyethylene (PEX), but some use
CPVC. Use fittings appropriate for the
type of pipe in your home. Do not use
any other type of pipe, such as PVC,
iron, flexible plastic pipe, or any type
of hose.
Figure 15 - The T&P Relief Valve discharge
pipe must be installed properly and piped
to an adequate drain.