Freeze Prevention; Winter Shutdown - Takagi GS-2000W-AU Installation Manual

Gas water heaters

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Table Of Contents

Table of Contents

This unit comes equipped with heaters that prevent the unit from freezing. For this freeze prevention

system to operate, there has to be electrical power to the unit. The freeze prevention devices will not

work if the electrical power source is disconnected. The unit has been rated for temperatures down to

-15 °C in a wind free environment. Do not install the water heater in an area with extremely cold weather.

The pipe heaters are located on the Water Heater only. Any hot or cold water pipes located

outside of the unit will not be protected. Properly protect and insulate these pipes from

freezing.

If you will not be using your heater for a long period of time or if the temperatures will drop below -15 °C

with the wind chill factor, turn off your heater and drain the unit of water. This will keep your unit from

freezing and being damaged.

Follow these instructions carefully:

1. Close the manual gas shut off valve.

2. Turn off the power supply to the water heater.

3. Close the manual water shut off valve located on the water

supply line.

4. Open all hot water taps in the house. (Bathroom, kitchen,

laundry room, etc.). When the water flow has ceased, close

all hot water taps.

5. Have a bucket or pan to catch the water from the unit's

Unscrew

drain plugs.

out of the unit.

6. Wait a few minutes to ensure all water has completely

drained from unit.

7. Securely screw the drain plugs back into place.

Hand-tighten only.

When it is again safe to use the water heater:

• Make sure all hot water taps are closed and the drain plugs are securely attached.

• Purge the water line of debris.

• Turn on the manual water control valve located on the water supply line.

• Open all the hot water taps to verify water flows to the taps. Close hot water taps.

• Turn on the manual gas control valve located on the gas supply line.

• Turn on the power supply to the Water Heater.