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pump and on the return into the furnace. Take a garden hose from a house faucet to the
furnace. Steal a washing machine hose from inside the house and use it to hook to the
furnace drain and the garden hose. Turn the water on at the house and open the drain. This
will allow water from the hose to move the entire system and purge any air bubbles. It will
also cause the water to spray from the bottom flange of the pump and you get wet if not
careful. Allow this to run for approx two minutes (time can be based on length of run to the
house and back). Shut the water off and close the drain. Tighten the flange and open all
valves.
L
INES NOT GETTING HOT THROUGHOUT ENTIRE SYSTEM
If you have put a tee into the system then water may not be flowing through one of the
appliances. You may have to re-plumb the system so that there is a continuous loop from the
furnace to the house and back.
The pump may have reached its operating capacity. Try increasing the speed of a multi-
speed pump or getting a bigger pump.
H
OT WATER HEATER SIDEARM NOT HEATING
The sidearm could be air locked or not plumbed properly. Find a way to bleed any air out of
the domestic side of the system at the highest point.
Summary of Contents for Bear Cub 305 Series
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