Section 4 --- Appliances
Cayman 2005
158
Water Heater Bypass
The bypass valve is located at the back of the water heater.
Turning the valve to BYPASS stops water from entering the cold
water inlet of the water heater. Turn the valve to BYPASS when
winterizing. For normal operation, turn valve so that handle
points to NORMAL FLOW.
Pressure-Temperature Relief Valve
The water heater is equipped with a Pressure/Temperature relief valve (P
& T) that may discharge during the heating cycle, due to thermal expansion of
water. The P & T relief valve is designed to open if the water temperature
in the tank reaches 210° F (98.8° C), or if internal pressure reaches 150 psi.
When water pressure and temperature reach these settings, water may drip
from the valve until the pressure has dropped. A small discharge is normal
and is not necessarily a faulty valve. Avoid opening the P & T valve manual-
ly as it may continue to leak.
The water heater has an internal air pocket to reduce the possibility of
dripping or weeping. Eventually, the expansion of the water will absorb the
air pocket. When this occurs, the air pocket will have to be replaced utiliz-
ing the following procedure.
CAUTION:
Ensure the water heater tank is cool prior to making any
check of the valve.
Re-establishing the Air Pocket:
Step 1: Turn OFF the water heater.
Step 2: Turn OFF the incoming water supply.
Step 3: Open any hot water faucet closest to the water heater.
Step 4: Pull the handle of the P & T valve until the flow of water
stops.
Step 5: Close the P & T valve allowing it to snap shut. Close the
hot faucet and turn ON the water supply.
Step 6: Turn ON the water heater.
The air pocket is re-established and the process does not need to be repeated until the next discharge of
water from the P & T valve. If the discharge does not stop, contact a qualified service center to evalu-
ate the valve and make any required repairs.
040493c
040424d
040463
Located behind exterior access panel.
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