Component Replacement Procedures; Draining The Water Heater (Procedure 1); Pressure & Temperature Relief Valve (Procedure 2) - Rheem Everhot 2A1050M7 Service Instructions Manual

COMPONENT REPLACEMENT PROCEDURES

Draining the Water Heater (Procedure 1)

Elevated temperatures may be present during the draining process.
Personal Protective Equipment should be worn to prevent the risk of
scalding.
Personal Protective Equipment should be worn when conducting step 3 of
this procedure to reduce the risk of electric shock.
1. Isolate the power and water supplies to the water heater and remove lower access
cover.
2. Relieve pressure from the water heater through TPR valve or a hot tap.
3. Confirm with a multi-meter between Active and Neutral at the terminal block that
voltage is not present.
4. Disconnect the cold water supply pipe.
5. Fit a drain hose to the cold water connection and run the other end to a drain or safe
location.
6. Open the temperature and pressure relief valve to allow air into the system.
Pressure & Temperature Relief Valve (Procedure 2)
Never fit a TPR valve with a rating higher than that indicated on the water
heater rating plate. Do not use reconditioned TPR valves.
1. Partially drain the water heater (refer to procedure 1).
2. Remove the drain line from the TPR valve.
3. Unscrew the TPR valve and remove.
4. Confirm the replacement TPR valve is the correct rating and refit using thread tape.
5. Refit the drain line.
6. Close the hot tap and restore water supply.
7. Check TPR valve thread for leaks.
8. Operate the TPR valve lever to reset relief drain.
9. Purge air from the system through hot taps.
10. Restore the power supply to the water heater.
TM074: Stainless Steel Electric Water Heater Service Instructions
REV AB Issued: 07/16
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