Removing And Replacing The Drain Port And Drain Tube - American Water Heater 160X3P Manual

On-demand water heater, condensing models
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Connec ons
and
use 12.7A metal
2
3
fasteners. See Figure 78.
A ach the built-in controller to
13
the front of the water heater.
Reconnect the wire from the built-in
controller to the computer board. See
Figure 77.
Before proceeding , take a
14
moment to check the wiring
connec on and pipe connec ons. Make
sure all are mated correctly and seated
securely.
Before restoring power to the
15
water heater, check the piping
connec ons by restoring water to the
system and check for any leaks. Allow a
few moments for the system to pressurize.
Correct any leaks immediately. Open a
hot water faucet and allow the water to
run un l it fl ows with a full stream. Let the
water run full stream for three minutes
before closing the faucet.
Replace the front cover and
16
secure with the four screws
removed earlier. Note the placement of
the built-in controller when se ng the
front cover in place to ensure proper
alignment.
Reconnect power to the water
17
heater by plugging it into the
wall outlet or turning it on at the circuit
breaker, as appropriate. Press the On/
Off bu on to turn the water heater
back on.
Turn on the gas supply to the water
18
heater at the manual gas shutoff
valve.
Verify proper opera on of the
19
water heater.
Removing and
Replacing the
Drain Port and
Drain Tube
WARNING!
• To ensure your safety and the
safety of others, read and follow
each step of these instructions.
Failure to do so could result in
personal injury or death.
• If you do not have the skills
necessary to complete this
procedure correctly, do not
proceed. Seek assistance from a
qualified service technician.
Tools Needed: #2 Phillip's Head
Screwdriver
NOTICE: DO NOT USE ELECTRIC
SCREWDRIVERS OR DRILLS, HAND
TIGHTEN ALL SCREWS TO PREVENT
OVER TIGHTENING.
Disconnect power to the water
1
heater by unplugging it from the
wall outlet or turning it off at
the circuit breaker, as appropriate. The
power button on the water heater and
remote does NOT disconnect power to
the water heater. You must physically
disconnect power to the water heater.
Use a non-contact circuit tester to
confirm that power is off before
working on or near any electrical parts.
Shut off the gas supply to the
2
water heater at the manual gas
shutoff valve.
Use a Phillips-head screwdriver to
3
remove the 4 screws securing the
cover to the water heater. Set the front
cover and screws aside for re-installa on.
On-Demand Water Heater Service Handbook for X3P Models
Locate the wire on the built-in
4
controller and follow it to the
computer board. Carefully disconnect
the
built-in
controller
computer board. Reference the wiring
diagram on page 28 or in the
maintenance sheet. Set the built-in
controller aside for re-installa on. See
Figure 81.
Built In Controller
Connector
Connecto
Figure 81:  Built-in controller removal.
Shut off water to the water
5
heater and drain the system.
Place a bucket under the water heater
and open the plas c drain port located
on the bo om le side of the water
heater. Allow the system to completely
drain before proceeding.
Remove
the
three
6
fasteners securing the plas c
piping to the recircula on pump.
uses a 16A metal fastener, Connec ons
2
and
3
use 12.7A metal fasteners.
See Figure 82.
Joint "E" # 485
2
3
3
Joint "G" # 487
Joint "G" # 4
487
1
Figure 82:  Metal Fastener and Pipe Joint Re-
moval.
from
the
o r
o
r
r
r
r
r
r
r
r
metal
1
65

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180x3p199x3p

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