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Volume of Pool (Length X Width X Average Depth) = _________ Pool Cubic Feet
X Gallons per cubic ft.(7.5) = _________ Pool Gallonage
X Pounds per Gallon (8.3) = _________ Pounds of Water
How many degrees do you want to raise the temperature of the pool?
# of Degrees _________ X Pounds of Water (per above) = __________ BTU’s Required
BTU’s Required (per above) ___________
4 4
4 4
4 BTU Output of Heater = ______ Hrs. of Operation
Optional Cold Weather Adjustment Factor:
Hrs. of Operation (per above) ______ X 1.25 (60º F outside air (O.A.) Temperature Factor) = ______
Hrs. of Operation at 60º F O.A.
When you start up your new AquaCal Heat Pump for the first time to heat your pool, you must allow the unit to
run continuously until the desired temperature is reached. This may take from several hours to several days
depending upon the time of the year and the outside conditions. If you utilize a time clock or similar device to
control the operating time of your pool system, you should temporarily override the device and allow it to run the
pool or spa pump until the water reaches the desired temperature.
Your heat pump is a maintainer of heat and is sized to overcome the heat loss during the coldest period in which
you are trying to heat. Once your pool is up to temperature, the time clock can be reset. The time your system
has to run may need to be extended during the colder months when heat loss is at its greatest.
Since air is generally at its warmest during the day time, it is best to operate your heat pump during the daytime
when there is more heat to transfer. So keep this in mind when you are trying to heat your pool.
NOTE: An optional Call Flex time clock manager (AquaCal part #0030S) can free you from having to
change the settings on your time clock as the heat loss increases or decreases. Contact your installing
dealer for details.
The information in this section is written for the Home Owner, but also may
apply to a servicing dealer. The section contains information on planned main-
tenance, proper water flow, maintaining proper clearances as well as other
vital information. Please read this section now, and before calling AquaCal
Customer Service at (800) 786-7751.
MAINTENANCE