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6. When lines have been ushed, replace the drain plug in the water heater. Set the bypass
valves to NORMAL, and ll the water heater with water. Open the HOT water faucets
until a steady stream of water runs out of them. Turn o the faucets. The water heater
should now be full of water. Power can be restored to the water heater.
7. If your RV has a water lter it should be installed as well.
Water Heater
The water heater manufacturer has preset the sensing limit to maintain the water temperature
when the water heater is activated.
Read the safety and operating information provided in the manufacturer’s manual located in
your warranty packet before attempting to activate the water heater.
Make sure the water heater is lled with water before use as even momentary operation of
the water heater without water in it may result in damage to the tank heating element and/or
controls. , make sure they are set properly.
Always open both the hot and cold water faucets when lling the fresh water tank to allow
air pockets to be forced out of the water heater.
The “propane GAS” switch enables propane operation of the water heater, and the “ELEC-
TRIC” switch enables electric operation.
Water heaters in certain models will ONLY have a single LP Gas water heater
switch. These units will not heat water electrically.
Hydrogen gas may result if you have not used the water heater for two
weeks or more.
To reduce the risk of injury under these conditions, open the hot
water faucet for several minutes at the kitchen sink before you use any
electrical appliance connected to the hot water system. If hydrogen is
present, you may hear what sounds like air escaping through the pipe as
the water begins to ow. Hydrogen gas may be present even after water
has been drained from the water heater tank. Open the faucet at the sink
and allow the system to vent for ve to ten minutes. Do not smoke or
have any open ame near the open faucet while venting. On DSI water
heater models, make sure the switch is OFF.
Do not alter the operation or change the design/construction of your wa-
ter heater. For your safety, only factory authorized parts should be used
on your water heater. Accessories marketed for recreation vehicles, such
as an “add-on” electric heating elements, are not recommended by the
manufacturer. Such items are not approved to be installed and could
create an unsafe condition and will void all warranties.
then and follow the procedures listed
in the Propane System section before attempting to operate the water
heater.
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