American Water Heater Ultra Low Nox Manuel d'instructions télécharger pdf (Page 12)

The temperature-pressure relief valve must be manually operated at

least once a year. Caution should be taken to ensure that (1) no one

is in front of or around the outlet of the temperature-pressure relief

valve discharge line, and (2) the water manually discharged will not

cause any bodily injury or property damage because the water may

be extremely hot.

If after manually operating the valve, it fails to completely reset and

continues to release water, immediately close the cold water inlet

to the water heater, follow the draining instructions, and replace the

temperature-pressure relief valve with a new one.

FIGURE 10.

FILLING THE WATER HEATER

Never use this water heater unless it is completely full of water.

To prevent damage to the tank, the tank must be ﬁ lled with water.

Water must ﬂ ow from the hot water faucet before turning “ON” gas

to the water heater.

To ﬁ ll the water heater with water:

1. 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.

2. 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.

3. To insure complete ﬁ lling of the tank, allow air to exit by opening the

nearest hot water faucet. Allow water to run until a constant ﬂ ow is

obtained. This will let air out of the water heater and the piping.

4. 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-ﬁ red water heater

has a thermal efﬁ ciency at or above 80% which may produce a

relatively low ﬂ ue gas temperature. Such temperatures may not

be high enough to properly open thermally operated vent dampers.

This would cause spillage of the ﬂ ue gases and may cause carbon

monoxide poisoning.

Vent dampers must bear evidence of certiﬁ cation as complying with

the current edition of the American National Standard ANSI Z21.66

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American Water Heater Ultra Low Nox Manuel d'instructions Page 12