American Hometec AHG-T42-LP, Инструкция по установке и эксплуатации

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Page 15
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 Procedure
section of this manual.
In cold regions, insulating material or heat tracing can be used to protect pipes and fittings. Please
consult your dealer if necessary.
Cold Weather with Potential Freezing Temperatures
Keep water flowing 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. “CL” will be displayed when off.
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 flowing.
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 flow.
5. If no flow, 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 flow has started.
7. When water flow resumes, carefully check for any signs of water leakage.
8. Resume normal operation
To prevent damage, NEVER force a heater to operate while in a frozen
state. NEVER bypass any safety feature.
Warranty
Damage caused by freezing is NOT covered by Warranty.