Calculating Initial Heating Time

The time it takes to initially warm your pool or spa depends on several factors. First determine how many gallons of water are to be heated. Knowing this, you can then compute the equivalent pounds of water involved, and the BTU's necessary to heat the volume of water to the desired temperature. Next, find the approximate BTU output of your heat pump at the current ambient air temperature (see specifications table in this manual). Finally, decide upon the temperature at which you plan to maintain your pool or spa.

Sounds complicated, but it's not! The following work sheet can be used to calculate approximately how long it will take your heater to bring your pool or spa up to temperature. Keep in mind that heating times will vary somewhat due to weather conditions during the period that the heater is in use.

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) ________ $ 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 your AquaCal heat pump for the first time, the heat pump must be permitted to operate, continuously, until the desired water temperature is attained. This may take several hours, to several days, depending upon the time of the year and weather conditions. If a time clock or similar device controls the operating time of the circulator pump, temporarily override the time clock or controlling device to allow for 24-hour, continuous water pump operation.

Once the body of water is up to temperature, the time clock can be reset. A heat pump is a maintainer of heat, and thus is sized to overcome heat losses. However, during the colder months, when heat losses are at their greatest, and in order to keep up with increased heat losses, water pump run times may need to be extended.

Since air is generally at its warmest during the daytime, it is best to operate heat pumps during the daytime when there is more heat to transfer. Whenever possible, set system run times for daylight hours.

NOTE: An optional Call Flex Time Clock Manager (AquaCal part #0030S) can eliminate the need to change water pump run times as heat losses change with weather conditions. Please contact your installing dealer for details.

H/AT120R, H/AT100R specifications

Aquacal H/AT100R and H/AT120R are leading heat pump models designed to efficiently heat swimming pools while promoting energy savings and environmental sustainability. These units are renowned for their advanced technology and impressive performance, making them a popular choice among pool owners.

One of the standout features of the Aquacal H/AT series is its high-efficiency operation. Both models are equipped with a high-performance compressor and heat exchanger that work together to maximize heat transfer. This efficiency translates into lower energy consumption, which not only reduces utility bills but also minimizes the carbon footprint associated with pool heating.

The H/AT100R and H/AT120R utilize advanced refrigeration technology, integrating state-of-the-art components that enhance their overall reliability and durability. The titanium heat exchanger is particularly noteworthy as it provides exceptional resistance to corrosion, ensuring longevity in various water conditions. This means pool owners can enjoy their heated pools for years without worrying about the negative effects of chemical treatment or saltwater.

Another significant technological innovation in these models is the incorporation of a user-friendly digital control panel. This intuitive interface allows users to easily monitor and adjust the temperature settings, facilitating a customized swimming experience. Moreover, the H/AT series is equipped with a built-in timer, enabling automatic operation to ensure the pool is heated precisely when needed.

Aesthetically, the Aquacal H/AT100R and H/AT120R have been designed with a sleek, compact form factor that allows for easy installation in residential and commercial settings. Their quiet operation is another feature that enhances user experience, offering a tranquil swimming environment without the disruptive noise often associated with conventional heating systems.

In terms of environmental friendliness, both models are designed to utilize eco-friendly refrigerants, aligning with modern regulations and promoting sustainable pool heating solutions. This commitment to sustainability reflects Aquacal's proactive approach to meeting the needs of environmentally-conscious consumers.

In conclusion, the Aquacal H/AT100R and H/AT120R heat pumps are notable for their advanced technology, high energy efficiency, user-friendly operation, and environmentally responsible design. These features come together to provide pool owners with a reliable, effective, and sustainable solution for pool heating, ensuring that they can enjoy their aquatic space year-round without compromising on energy efficiency or environmental impact.