Richmond RMTGHRH111DVLN User Manual

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AP18733 REV. 3.2.17

3. 6 MONTH MAINTENANCE

Check Primary and Gas Piping

• Remove the water heater cover and perform a gas leak inspection following Operating Instructions, page 2, this manual. If gas odor or

leak is detected, follow procedures on page 2. Call a qualified service technician.

• Visually inspect for leaks around the internal water heater water connections and around the heat exchanger. Visually inspect the

external system piping, circulators, and system components and fittings. Immediately call a qualified service technician to repair any leaks

• Lift the relief valve lever. If water flows freely, release the lever and allow the valve to seat. Watch the end of the relief valve discharge

pipe to ensure that the valve does not weep after the line has had time to drain. If the valve weeps, lift the lever again to attempt to clean the

valve seat. If the valve does not properly seat and continues to weep, contact a qualified service technician to inspect the valve and system.

• If water does not flow from the valve when you completely lift the lever, the valve or discharge line may be blocked. Immediately shut the

water heater down per instructions on page 2 and call a qualified service technician to inspect the valve and system.

• If relief valve seats properly, restore power to the water heater. Observe operation for five minutes and ensure it operates properly.

WARNING

Have leaks xed at once by a qualied service technician. Failure to comply could result in substantial property damage, severe personal injury, or

death.

To avoid water damage or scalding due to relief valve operation, a discharge line must be connected to the valve outlet and directed to a safe

place of disposal. This discharge line must be installed by a qualied service technician or heating/plumbing installer in accordance with the water

heater installation manual. The discharge line must be terminated so as to eliminate possibility of severe burns or property damage should the

valve discharge.

4. ANNUAL MAINTENANCE

Check the Burner

The burner should be checked and cleaned only by a qualied service technician.

Cleaning the Cold Water Inlet Filter (Draining the Water Heater)

The Cold Water Inlet Filter should only be cleaned by a qualied service technician.

Flushing the Water Heater

Flushing the Water Heater heat exchanger is a complicated procedure that should only be performed by a qualied service technician.

NOTE: Improper maintenance WILL VOID water heater warranty.

Operate Pressure Relief Valve

• Before proceeding, verify that the relief valve outlet has been piped to a safe place of discharge, avoiding any possibility of scalding from

hot water.

• Shut power off to the water heater. To avoid scalding, wait for water heater to cool before operating the relief valve.

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Richmond RMTGHRH111DVLN Encore 11 GPM 199,900 BTU Tankless Natural Gas Water Heater