Aquacomfort Technologies


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Product Description

Aqua Comfort ACT-1750 Signature XL Heat Pump; 143000 BTU, 230 V, 1-Phase, 60 Hz


Product Specifications

Brand Aqua Comfort
Item Heat Pump
Series Signature, XL
HeatOutputBTUH 143000
CoefficientofPerformance 6.5
CompressorType Scroll
VoltageRating 230 V
Phase 1-Phase
FrequencyRating 60 Hz
MaximumBreakerSize 50 A
FlowRate 20 – 70 gpm
CabinetWidth 30 Inch
CabinetHeight 39 Inch
CabinetDepth 32 Inch
WaterConnection 2 Inch


AquaComfort Pool Heat Pump Features




    Over 100,000 pool owners across America get the most pleasure from their pools by heating with AquaComfort pool heat pumps. No matter where you live, AquaComfort delivers more heat starting at lower temperatures, with virtually no harmful emissions and at less operating cost than any other product available to heat your pool. We will help you choose the model that’s a perfect fit for any pool size or situation. Did you know HeatCOOL units can also cool your pool when you need it?

  • AquaComfort’s unique design allows for smaller breaker sizes. This design feature costs less to install while providing more time in your pool.
    View Specifications
  • Because of their low temperature operation AquaComfort heat pumps input 30 – 40% more heat than similarly sized competitive heat pumps in the critical first and last 30 days of the swimming season, when you need it most. AquaComfort heaters start heating your pool when the air temperature is at 40 degrees while most other heat pumps don’t start working until the air temperature reaches 52 – 60 degrees.
  • The life expectancy of an AquaComfort heater is nearly twice that of a fossil fuel heater.
  • Since 2000, while the efficiency of the average fossil fuel heater (natural gas, propane, oil) has remained constant, the AquaComfort heater has improved by 27% in efficiency due to component performance improvements and design improvements.
  • The efficiency of fossil fuel heaters decrease over the course of their life expectancy while the efficiency of an AquaComfort heater is constant throughout its life. This means that the operating cost of a gas heater grows every year.
  • Adding a small AquaComfort heat pump to an existing gas heater can reduce your pool heating cost by 50% and your carbon footprint by more than 60%.
  • The typical gas heater emits 15,000 – 20,000 pounds of CO2 annually. A heat pump pool heater is the environmentally correct pool heating option, reducing your pool heating carbon footprint by nearly 100%.

XL SERIES MODEL Specifications



The XL Series pool heater is engineered to capture more of the free heat from the surrounding air, AquaComfort Solutions innovated and perfected the science of pool heating. The XL Series’ Turboguard titanium heat exchanger is virtually immune to damage from unbalanced water chemistry and our fan assembly uses less energy and runs almost silently. It’s a precision package that lasts longer and maintains its efficiency year-after-year. Gas heaters lose efficiency every year starting the day they’re installed. Lower amperage requirements than the competition — starting at only 20 amps — will save you money on installation too.

MODEL ACT-750 ACT-1100 ACT-1250 ACT-1500 ACT-1750 ACT-1250 H/C ACT-1750 H/C
Heat Exchanger Titanium Titanium Titanium Titanium Titanium Titanium Titanium
Minimum Breaker Size 20 30 40 40 50 40 50
Voltage / Hertz / Phase 230 / 60 / 1 230 / 60 / 1 230 / 60 / 1 230 / 60 / 1 230 / 60 / 1 230 / 60 / 1 230 / 60 / 1
Water Flow (GPM) 15 – 50 20 – 70 20 – 70 20 – 70 20 – 70 20 – 70 20 – 70
Dimensions (LxWxH) 28 x 28 x 26 39 x 30 x 32 39 x 30 x 32 39 x 30 x 32 39 x 30 x 32 39 x 30 x 32 39 x 30 x 32
Shipping Weight (lbs) 170 240 240 250 290 250 300
Performance (BTUs) 1 57,000 93,000 108,000 128,000 135,000 86,000 136,000
Efficiency (COP) 1 5.1 5.4 5.3 5.7 5.8 4.3 5.8


* Performance 1 and Efficiency 1 are rated based on 80° air/80° water/80% humidity in accordance with AHRI standard 1160.
Recommended clearance access on service side is 24″ and 18″ on other three air intake sides.
Recommended minimum over head (top of unit) clearance is 48″.






Owner’s Manual

Model and Serial Number






There is constantly water around the base of my AquaComfort heat pump. Does this indicate a pool water leak inside my heater?

No, this does not mean you have a pool water leak. Pool heat pumps are capable of producing up to three gallons of condensation an hour. A very simple way to test this is put a chlorine test strip in the water around the heat pump. Condensation will not have any chlorine in it; if it is pool water your test will show a positive chlorine reading.

Should I cover my AquaComfort heat pump in the winter time?

No, your AquaComfort heat pump was designed to be outside. Covering the heat pump will only make a warm, dry place for animals looking for a home. If you feel that falling tree limbs are a direct threat, you can cover the fan grate only.

My AquaComfort heat pump display reads LPS when temperatures outside are colder ( around 40 degrees ambient air temperature). In my manual it states that LPS can mean I have a refrigerant leak. Do I need service?

This does not mean you need service. An AquaComfort’s heat pump LPS switch will turn the heater off and show a code of LPS when temperatures fall to around 40 degrees ambient air temperature or lower. This does not indicate a leak. This indicates that the outside air temperature has become too low for the heater to run. The heater will come back on when the outside air temperature warms up.

I see a FLO code on my heater at times and at other times I don’t. Is this an intermittent problem?

In most cases an intermittent FLO code is caused by your filter pump being turned on and off by the filter pump timer. The FLO code is indicating that the filter pump has stopped the flow of water to your heat pump. The heat pump cannot heat without water flow so it will turn itself off until the filter pump timer turns back on giving the heat pump the water flow it needs.

If my heat pump shows an Error code on the display does this mean that my heat pump is being damaged?

No, the sensors and computer control board that operate and monitor the various systems on the heat pump are designed to protect the heater by turning it off and displaying the appropriate error code; therefore eliminating the potential for damage.

My heat pump is accumulating frost on the evaporator coil when ambient air temperatures are cooler outside. Is this a problem?

When the ambient air temperature gets cooler it can cause the condensation to freeze on the evaporator coil. The heater has a defrost cycle that will initiate and melt the ice from the coil. The defrost cycle often takes little time to defrost the coil which means you may not always see it happen.

Does setting the temperature on my heat pump higher than the temperature I am trying to achieve make the pool water heat faster?

No, setting the desired pool water temperature higher than the temperature you are trying to achieve will only make the heater run longer until it reaches the temperature it is set for.

When the ambient air outside is colder, it seems as if my heater does not heat as fast. Is this normal?

Yes, there are two major factors that affect the ability to heat a pool.

One is how much heat you’re able to put in the pool. When the ambient air temperature gets colder there is less free heat available for the heater to transfer into the pool water. When it’s colder, allow your heat pump to run as long as it needs to achieve the temperature you desire. You may need to adjust the filter pump clock to run longer so the heat pump does not shut itself off as a result of no water flow.

The second is how much heat you’re able to retain in your pool. The greatest cause of heat loss from a pool is ambient air temperatures colder than your pool water removing the heat from the pool. You may want to invest in a solar cover. A solar pool cover will insulate the surface of your pool greatly reducing the amount of heat loss. This will also save you money.

How do I winterize my pool heat pump?

We highly recommend that you have a Pool professional winterize your pool equipment and heat pump. Any Freeze Damage that occurs from a homeowner winterizing their own heat pump is NOT covered under warranty and will void the warranty of the heat pump.

To winterize your heat pump you need to turn off the power at the electrical panel (breaker). You MUST ensure that you have drained all of the water from the heater. Water left in the heater will freeze causing significant damage to your heat pump. The plumbing must be left in such a way that it will not collect any water or be accessible to animals over the winter. If you are not confident that you are able to achieve any of the above guidelines please seek help from your qualified pool care professional.

Is it difficult to install?

Not for your pool dealer. An AquaComfort heater can be installed by your pool professional quickly and easily.

Does AquaComfort require a GFI breaker to protect the heat pump circuit?

No, AquaComfort does not require a GFI to protect the heat pump circuit.

Does my heat pump need a fireman’s switch?

No, a fireman’s switch is only needed for combustion source heating equipment.

Can I install my heat pump indoors?

No, AquaComfort heat pumps work by absorbing the heat from the surrounding air and exhausting the colder air out of the top of the heat pump. If our heat pump were installed inside of a building the Heat pump would absorb the heat from that space and exhaust the colder air into that space which would cool down that space until the unit could no longer operate.

My electrical Installer would like to see the electrical specifications of the AquaComfort heat pump I have purchased, where can I find this information?

All of AquaComfort’s heat pumps have what is called a data plate on the front panel to the left of the display. This data plate indicates all of the mechanical and electrical specifications necessary for installation and service.