12
2.3 COLD WEATHER WARNINGS
FREEZING DAMAGE POTENTIAL AND PRECAUTIONS
Freezing temperatures can damage the water heater and/or water piping. Freezing water
expands rapidly and can create tremendous mechanical forces. Mechanical damage and pipe
ruptures can result from only brief exposure to freezing temperatures.
For best results, completely shut down the system by following the Extended Outage Proce-
dure section of this manual.
In cold regions, insulating material or heat tracing can be used to protect pipes and ttings.
Please consult your dealer if necessary.
COLD WEATHER WITH POTENTIAL FREEZING TEMPERATURES
Keep water owing through the system to guard against freezing.
Follow these steps:
1. Close the fuel gas valve.
2. Turn off the power by pressing the “ON/OFF” button.
3. Open the hot water faucet at one or more points of use (sink, upstairs bathtub, etc.)
Maintain a constant trickle. Monitor the stream of water to ensure it is still owing.
NO FLOW DUE TO EXPECTED FROZEN HEATER
1. Close both the fuel gas valve and the water inlet valve.
2. Turn off the power switch.
3. Open a hot water faucet.
4. Open the water inlet valve now and then to check for a water ow.
5. If no ow, attempt to thaw heater by using a portable heat source such as a hair dryer or
portable electric heater.
6. Check occasionally to see if water ow has started.
7. When water ow resumes, carefully check for any signs of water leakage.
8. Resume normal operation
WARRANTY
Damage caused by freezing is NOT covered by Warranty.
To prevent damage, NEVER force a heater to operate while in a
frozen state. NEVER bypass any safety feature.
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