Installation
Checkpoints
1. Before Starting The Water Heater:
Do not turn on the water heater unless
it is filled with water as shown by
indicating light on panel box.
2. Check that the front door of the air
decoupler box is closed. Door must be
closed before starting the water heater.
DO NOT OPEN DURING OPERATION.
3. Adjust temperature to proper set-
point.
4. Open the manual shut off gas valve.
5. Close the circuit breaker or the
fuse disconnect.
6. Turn the on-off switch to “ON”
Installation
24-PDWH
CGA
Rating The Water heater
After the water heater has been operating for about 15 minutes check gas input rate to be
sure water heater is operating at design capacity
Testing Ignition Safety Shut Off
Open gas shut off valve, allowing gas to
flow to water heater. Close gas shut off
valve. Reset low gas pressure switch.
Turn on the water heater. The water
heater will run through its purge and
trial for ignition cycle. After 6 seconds of
ignition trial, the water heater will
recycle. Switch the water heater off.
Open the gas shut off valve. Restart the
water heater.
Measure Gas Flow Rate:
Turn off the water heater and the manual
gas shutoff valve. Remove manifold
(down-stream) pressure test plug from the
90 degree elbow.
WARNING
HOTTER WATER CAN SCALD: Water
heaters are intended to produce hot
water. water heated to a temperature
which will satisfy clothes washing, dish
washing, and other sanitizing needs
can scald and permanently injure you
upon contact. Some people are more
likely to be permanently injured by hot
water than others. These include the
elderly, children, the infirm, or
physically/mentally handicapped. If
anyone using hot water fits into one of
these groups or if there is a local code
or state law requiring a certain
temperature water at the hot water tap,
then you must take special precautions.
In addition to using the lowest possible
temperature setting that satisfies your
hot water needs, some type of
tempering device, such as a mixing
valve, should be used at the hot water
taps used by these people or at the hot
water heater. Mixing valves are
available at plumbing supply or
hardware stores. Follow
manufacturer’s instructions for
installation of the valves. Before
changing the factory setting on the
thermostat, read the “Temperature
Regulation” section in this manual.
Summary of Contents for PDWH1000
Page 5: ...Section 1 Safety Warnings and Precautions 3 PDWH...
Page 9: ...Section Installation 7 PDWH 2...
Page 28: ...PAGE INTENTIONALLY LEFT BLANK...
Page 29: ...3 Operation Section 26 PDWH...
Page 37: ...Section 4 Maintenance 34 PDWH...
Page 41: ...Section 5 Parts and Warranty 38 PDWH...
Page 42: ...PAGE INTENTIONALLY LEFT BLANK...
Page 46: ...PAGE INTENTIONALLY LEFT BLANK 42 PDWH...
Page 48: ...PAGE INTENTIONALLY LEFT BLANK...
Page 49: ...PAGE INTENTIONALLY LEFT BLANK...