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TANKLESS
WATER HEATERS
Models & Prices
Tankless Water Heater Product Guide
Description / Specification
Tankless Water Heater Applications
Residential / Commercial
Tankless Water Heater Electrical Guide
Service Calculations
Tankless Water Heater Installation
Plumbing / Electrical
Tankless Water Heater Cost Comparisons
Reports / Listings
Tankless Water Heaters Service Guide
Remove / Repair
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OUTLET WATER FITTING REPLACEMENT
The outlet water
fitting (or nipple) is located is located vertically on the left side
of the heating chamber. It is not necessary to remove the control board
or the heater from the wall to replace the outlet fitting.
Required Tools: Phillips screw drivers, battery
powered volt meter, rag, bucket, two pipe wrenches, needle nose pliers
and Teflon tape pipe sealer.
WARNING: To avoid electrical shock,
make sure that all of the power is off to the heater before attempting
to remove the old outlet fitting and while installing the new outlet fitting.
- Turn off all the power to the heater. Confirm
the power is off with a voltmeter, even if the status light (or
LED) on the control board is off. There may be multiple breakers powering
your model heater.
- Open a hot water faucet nearby.
While the water is running, turn off the water supply to the heater.
This will help siphon some of the water out of the heater.
- Using a large Phillips screw driver,
remove the six screws from the right bottom clean out plate on the under
side of the heating chamber (there is only one clean out plate on a
two chamber heater) to drain the remaining water from the heater into
a bucket. Replace the plate after draining.
- Using two pipe wrenches, disconnect
the outlet water line threaded onto the top of the outlet fitting. Use
the rag to prevent any water dripping or spraying, which should
be very little if any.
- Remove the two set-screws at the top of
the outlet tube that hold the outlet water fitting in place.
- Slide the outlet fitting up and out of the
unit.
- After sliding the new outlet tube in place,
tighten the set-screws. The tube should be free to rotate after turning
the set-screws into the grooves. Do not over tighten the set-screws.
- Wrap the Teflon tape pipe sealer
around the threads of the outlet fitting and reconnect the outlet water
line. Do not use Plumber’s Putty or Pipe
Dope on the threads of the inlet and outlet fitting connections. If
using CPVC or PVC primer and glue, avoid contact of these substances
with the heater’s inlet and outlet fittings. These substances are
highly corrosive and can damage the inlet and outlet fittings. Leaks
may occur as a result and cause severe damage to the heater.
- Before turning on the water, make sure the
control board is covered and protected from any possible water leak
or spray. Turn on the water and check for leaks.
- If there are no leaks, remove the covering
or protector from the control board and turn on the power to the heater.
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