Heatmor 400-4S, User Manual

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WATER
Qualities of Water to Use
Water quality will vary from one location to another. Different qualities of water can have a damaging effect on
your HEATMOR™ furnace, pumps, and plumbing components. Please observe the following guidelines for
best results.
• Do not add water from ponds or off roofs.
• Do not add water exceeding 50 parts per million (ppm) in chlorides.
• Do not add water over 27 grains hardness - mix this water 50/50 with softened water.
• Do not add water exceeding 50 ppm silica content.
• Do not add water from shallow wells.
• Do not add water from a well that has recently been “shocked” with chlorine.
Water Level Maintenance
You can verify the water level of your HEATMOR™ by checking the fullness of the bladder. The best method of
gauging the fullness of the bladder is to reach up and feel the bladder. The bladder should still have wrinkles
in it when the water temperature is 180 degrees Fahrenheit. If the filling procedures were done correctly, the
bladder would have been the last thing topped up after the water jacket of your HEATMOR™. Refer to “Filling
your Furnace Initially” for further details or contact your local dealer.
Removal/Replacement of System Water
Before removing more than five gallons of water from your HEATMOR™, make certain to remove the weighted
pop off ball so that air can enter the water jacket as water leaves. Failure to do so may put a negative pressure
on the water jacket and collapse it. Warranty does not cover this.
If a sediment faucet was installed at the back of furnace, it may be used for draining purposes. If you have a
sediment faucet installed on the main manifold in the house, that also can be used to drain the HEATMOR™.
The drained contents of the HEATMOR™ must be discharged to an area or place where they will not
damage property or create an environmental hazard. If you are draining the system because of total
system shutdown in cold weather, remember to also drain the supply and return lines to prevent
freeze-up.
To refill your HEATMOR™, refer to “ Filling your Furnace Initially.” It is important to add water treatment to the
HEATMOR™ once you have refilled your HEATMOR™. For further information on replacing the water in your
furnace, contact your local dealer.
CHAPTER 10