20
WARNING
Water heaters are heat-producing appliances. To avoid damage or injury there must be no materials stored against
the water heater or direct vent system, and proper care must be taken to avoid unnecessary contact (especially by
children) with the water heater and direct vent system.
UNDER NO CIRCUMSTANCES SHOULD FLAMMABLE
MATERIALS, SUCH AS GASOLINE OR PAINT THINNER BE USED OR STORED IN THE VICINITY OF THIS
WATER HEATER OR IN ANY LOCATION FROM WHICH FUMES COULD REACH THE WATER HEATER.
Installation or service of this water heater requires ability equivalent to that of a licensed tradesman in the field
involved. Plumbing, air supply, venting, gas supply and electrical work are required.
Light the unit in accordance with the operating instructions label attached to the water heater.
Under no circumstances should the input rate exceed the input rate shown on the water heater rating plate. Over
firing could result in damage or sooting of the water heater.
If the unit is exposed to the following, do not operate water heater until all corrective steps have been made by a
factory authorized independent service contractor or qualified service professional.
1. Flooding to or above the level of the burner or controls
2. External
firing
3. Damage
4. Firing without water
5. Sooting
NEVER OPERATE THE WATER HEATER WITHOUT FIRST BEING CERTAIN IT IS FILLED WITH WATER AND A
TEMPERATURE AND PRESSURE RELIEF VALVE IS INSTALLED IN THE RELIEF VALVE OPENING OF THE
WATER HEATER.
TO FILL THE WATER HEATER
1. Close the water heater drain valve by turning the knob clockwise. If alternative water connections are provided but
not used, make certain they are plugged (i.e. rear connections).
2. Open the cold water supply shut-off valve.
3. Open several hot water faucets to allow air to escape from the system.
4. When a steady stream of water flows from the faucets, the water heater is filled. Close the faucets and check for
water leaks at the water heater drain valve, combination temperature and pressure relief valve and the hot and cold
water connections.
5. To restore operation of water heater refer to operating instruction label on the water heater.
TO DRAIN THE WATER HEATER
Should it become necessary to completely drain the water heater, make sure you follow the steps below:
1. Reduce the thermostat setpoint to the lowest setting. On water heater models having 24 volt controls, depress the
control panel rocker switch on the top of the control box to the “OFF” position and disconnect the power to the water
heater.
2. Rotate and partially depress gas control knob clockwise to the “OFF” position.
3. Shut off the gas supply to the water heater.
4. Close the cold water supply shut-off valve.
5. Open the drain valve on the water heater by turning the knob counter-clockwise. The drain valve has threads on the
end that will allow the connection of a standard hose coupling.
6. Open a hot water faucet to allow air to enter the system.
To refill the water heater, refer to “To Fill the Water Heater.”
Содержание GAS-FIRED COMMERCIAL WATER HEATER
Страница 22: ...22 Spark to Pilot Ignition IID Wiring Diagram ...
Страница 23: ...23 SECTION IX OPERATING INSTRUCTIONS Lighting And Shutdown Instructions Standing Pilot Models ...
Страница 24: ...24 Lighting and Shutdown Instructions Spark to Pilot Ignition IID Models ...
Страница 56: ...56 SECTION XIV NOTES ...
