Raypak P-2100, P-1826, P-4001, P-926 manual Winterizing Your Heater

Models: P-2100 P-926 P-4001 P-1826

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Winterizing Your Heater

Winterizing Your Heater

When heaters installed outdoors in freezing climate areas are to be shut down for the winter, please observe the following step-by-step procedure:

1.Remove the drain plug or open the drain cock located on the inlet-outlet header. On larger heaters with external Unitherm Governor(s) and piping, locate plug at low point of Governor piping, or break connections and rotate inlet fittings 180 degrees to face downward. Turn off manual main gas and main gas shut off.

2.Disconnect compression fittings on both ends of the 1/8" copper tube and allow the tube to drain. Remove the "heat exchanger inspection panels" on the right side of the heater to gain access to the fitting on the return header. Remove return head- er.

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Page 31
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Raypak P-2100, P-1826, P-4001, P-926 manual Winterizing Your Heater