Lochinvar Water Heater CGL200080

Seal any unused openings in the venting system

Inspect the venting system for proper size and horizontal pitch

Check for blockage, restriction, leakage, corrosion, and other deficiencies

Close all building doors and windows

Close all doors between the water heater space and other spaces

Turn on all appliances not connected to the venting system

Turn on all exhaust fans at maximum speed

Lift the lever at the top of the valve several times until the valve seats properly and operates freely.

Check operation of other relief valves if present

Ensure water discharge is safe and does not cause water damage.

Avoid contact with hot water during valve operation.

Does the temperature and pressure relief valve discharge periodically or continuously?

Describe any issues observed with the valve operation.

Shut off gas supply to the heater

Remove outer cover plate from lower side of heater jacket

Remove six hex head screws securing tank cleanout plate

Remove lime, scale, or sediment carefully to avoid damaging glass lining

Unfasten two screws to burner cover and remove it

Locate the burner with pilot and remove screw holding burner to manifold

Unfasten pilot tubing from valve and slide out burner and pilot

Clean the orifice of the pilot burner

Measure the depth of lime buildup in the heater

Record the depth of lime buildup in inches

Deliming Schedule Recommendation

Determine deliming frequency based on lime buildup

Review handling instructions on the deliming product label

Is deliming required immediately based on the measurement?