Maytag HRX75XORSCGA - Manuel (Page 16)

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Never use this water heater unless it is completely full of water.
To prevent damage to the tank, the tank must be filled with water.
Water must flow from the hot water faucet before turning “ON”
gas to the water heater.
To fill the water heater with water:
• Close the water heater drain valve by turning the handle to
the right (clockwise). The drain valve is on the lower front of
the water heater.
• Open the cold water supply valve to the water heater.
NOTE: The cold water supply valve must be left open
when the water heater is in use.
• To insure complete filling of the tank, allow air to exit by
opening the nearest hot water faucet. Allow water to run
until a constant flow is obtained. This will let air out of the
water heater and the piping.
• Check all water piping and connections for leaks. Repair as
needed.
Venting
VENT DAMPERS - Any vent damper, whether it is operated
thermally or otherwise must be removed if its use inhibits proper
drafting of the water heater.
Thermally Operated Vent Dampers: This gas-fired water
heater has a thermal efficiency at or above 80% which may
produce a relatively low flue gas temperature. Such
temperatures may not be high enough to properly open thermally
operated vent dampers. This would cause spillage of the flue
gases and may cause carbon monoxide poisoning.
Vent dampers must bear evidence of certification as complying
with the current edition of the American National Standard
ANSI Z21.66/CGA 6.14, (covering electrically and mechanically
actuated vent dampers). Before installation of any vent damper,
consult your Maytag Customer Service Center at 1-800-788-
8899 or the local gas supplier for further information.
To insure proper venting of this gas-fired water heater, the correct
vent pipe diameter must be utilized. Any additions or deletions
of other gas appliances on a common vent with
this water heater may adversely affect the operation of the
water heater. Consult your Maytag Customer Service Center
at 1-800-788-8899 or gas supplier if any such changes are
planned.
For proper venting in certain installations, a larger diameter vent
pipe may be necessary. Consult your Maytag Customer
Service Center at 1-800-788-8899 or gas supplier to aid you
in determining the proper venting for your water heater from
the vent tables in the current edition of CAN/CSA - B149.1
Installation Code.
Periodically check the venting system for signs of obstruction or
deterioration and replace if needed.
The combustion and ventilation air flow must not be obstructed.
The water heater with draft hood installed must be connected to
a chimney or listed vent pipe system, which terminates to the
outdoors. Never operate the water heater unless it is vented to
the outdoors and has adequate air supply to avoid risks of
improper operation, explosion or asphyxiation.
• For proper draft hood attachment, the draft hood legs may
be angled slightly inward.
• Place the draft hood legs in the receiving holes on the top of
the water heater. The legs will snap in the holes to give a
tight fit. Secure draft hood with the supplied brackets.
• Place the vent pipe over the draft hood. With the vent pipe in
position, drill a small hole through both the vent pipe and
draft hood. Secure them together with a sheet metal screw,
see Figure 18.
Obstructed or deteriorated vent systems may present serious
health risk or asphyxiation.
FIGURE 18.
The vent pipe from the water heater must be no less than the
diameter of the draft hood outlet on the water heater and must
slope upward at least 1/4 inch per linear foot (21 mm per meter),
see Figure 19.
FIGURE 19.