Propane Gas Furnace - Winnebago Navion iQ Owner's Manual

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Table of Contents

SECTION 4 –

APPLIANCES AND SYSTEMS

Water Heater Exterior Service Access

-Typical View

Normally there is an air gap at the top of the

water heater tank, which acts as a pressure buffer.

In time, however, heated water may expand and

fill this air gap, causing a slight increase in water

pressure. This may cause the P-T valve to "weep"

until the air gap is manually replaced.

C AUT I ON

Hot water can escape from tank causing

injury. Operate this valve only when the

tank water is cold.

To Replace the Air Gap:

1. Turn off the Water Heater switch and

incoming water supply (city water and/or

demand pump).

2. Open a faucet in the motorhome to relieve

water pressure.

3. Pull the handle of the P-T valve straight out

and allow water to flow until it stops.

4-8

• Lift handle straight out to open P-T valve

when water heater is cold

-Typical View

4. Let the handle of the P-T valve snap shut.

5. Close the faucet and turn on the water supply

before switching the water heater on.

Manually operate the pressure temperature

relief valve at least once a year.

NOTE: If your water heater is equipped with the

motoraid system, it uses an extension

from the engine cooling system to heat

water in the water heater while driving.

The engine cooling system must also be

cold before opening the pressure-

temperature relief valve. See "Motoraid

Water Heater" for more information.