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XLHP™ Heat Pump Overview
Your Pentair heat pump will provide you with years of
service and excellent performance. Heat pumps operate
by taking heat from the surrounding air and transferring it
into the water. The warmer the air and the more humidity
in the air, the more latent heat is available for heating
your body of water. With a properly sized heat pump for
your body of water, the heat pump should raise the water
temperature an average of 1° F per hour depending on
air temperature, humidity, and starting water temperature.
The ideal or rated condition for the heat pump is 80° F
air temperature, 80% relative humidity, and 80° F water
temperature. As conditions decrease from 80/80/80, the
heat pump performance will decrease slightly.
Heat Pumps are best utilized to maintain a set water
temperature; they are not intended to provide instant
or fast heating. It is not reasonable to expect a heat
pump to perform like a gas heater which has a much
higher BTU output and faster response. Additionally, gas
heaters are not dependent on environmental conditions.
Aquaculture heat pumps are very similar to home heating
and air conditioning heat pumps and therefore should
be treated similarly.
Proper operation and use of the heat pump is to set it at
your desired temperature and leave it. Your heat pump
will turn on and off automatically to maintain your desired
temperature much like your home HVAC unit. To take
advantage of the sun's energy, operate your heat pump
during the heat of the day.
Your heat pump will still operate when the temperature
drops at night, but the output will be decreased. It is
acceptable to shut the heat pump off and not use it for
extended periods of time. When you have a need to
heat your aquaculture system, please plan accordingly
since it may take the heat pump days to heat the body
of water back to your desired temperature, depending on
its starting temperature and environmental conditions.
Heat Pump Installation Requirements
Correct installation is required to assure safe operation.
The requirements for Pentair heat pumps include
the following:
• Dimensions for critical connections.
• Field assembly (if required).
• Appropriate site location and clearances (pages 2-3).
• Proper electrical wiring (pages 8-9).
• Adequate water flow (page 6).
This manual provides the information needed to
meet these requirements. Review all application and
installation procedures completely before continuing
the installation.
BEFORE INSTALLING THE HEAT PUMP
General Features
•
Dual digital thermostats offer precise temperature
control to maintain the desired separate water
temperatures in unique aquaculture systems without
overheating or wasting energy.
•
Long-life corrosion resistant composite plastic
cabinet stands up to severe climates and chemicals.
•
100% pure titanium heat exchanger assures
corrosion-free performance for extra long life.
•
Self-diagnostic control panel monitors and
troubleshoots heat pump operations to ensure safe,
dependable operation.
•
AutoSet (time clock over-ride) feature monitors
water temperature and turns the water circulation
pump on and off as needed to maintain desired
water temperatures.
•
Extend (time clock over-ride) feature monitors water
temperature and turns the water circulation pump
on and off as needed to prolong a heating cycle that
has been interrupted.
•
Automatic Defrost feature senses refrigerant
temperature and prevents the evaporator coil from
freezing, allowing the heat pump to operate at
even lower temperatures.
•
Thermostatic expansion valve (TXV) controls
refrigerant flow for optimum efficiency and BTU
output over a wider operating range.
•
Elevated base pan for positive drainage of
condensation.
•
2-inch plumbing connections for easy installation.
•
Separate isolated electrical compartment prevents
internal corrosion, extends heater life.
•
Highest efficiency available, meets or exceeds
existing codes and standards.
•
Adjustable timer allows the operator to set the heat
pump to run for a predetermined time. Incremental
by 10 minutes to a maximum of 99 hours.
•
An extensive list of operational conditions, alarms
and water temperatures is logged on the control
board. This information is available for the user to
track performance and troubleshoot issues.
General Installation Information
1. Installation and service must be performed by
a qualified installer or service agency, and must
conform to all national, state, and local codes.
2. Heat pumps get electrical power from an
external source and provide a dual electronic
thermostat control system for unique aquaculture
combinations or preheat convenience.
3. This heat pump is specifically designed for heating
fresh water bodies of water. Do not use it as a
general service heater. Consult your dealer for the
appropriate Pentair products for these applications.
XLHP™ High Performance Heat Pump Installation and User's Guide
1
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