Pentair XLHP Installation And User Manual

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AQUATIC ECO-SYSTEMS™

™

XLHP

HIGH PERFORMANCE HEAT PUMP

IMPORTANT SAFETY INSTRUCTIONS

READ AND FOLLOW ALL INSTRUCTIONS

SAVE THESE INSTRUCTIONS

INSTALLATION AND

USER'S GUIDE

CUSTOMER SERVICE / TECHNICAL SUPPORT

If you have questions about ordering Pentair Aquatic Eco-Systems replacement parts, and products, please use the following contact information:

Customer Service 8 AM to 7 PM — Eastern and Paciﬁc Times

Phone: (877) 347-4788 FAX: (407) 886-6787

International

Phone: (407) 886-3939 FAX: (407) 886-4884

Web site

Visit www.pentairaes.com

TABLE OF CONTENTS

Important Warning and Safety Instructions .......

Operator and Service Control Panel Menus ......

Before Installing the Heat Pump .........................

Heat Pump Overview General Features Heat Pump Installation Requirements General Installation Information

Installation and Location .....................................

Materials Needed for Installation Equipment Pad Drainage and Condensation, Roof Run Off,

and Lawn Sprinklers Heat Pump Dimensions Location and Clearances Anchor Clamp Installation Water Connections and Plumbing Automatic Flow Control Valve Water Pressure Switch Adjustment Multiple Unit Installation

Heat Pump, Heater, Solar

Multiple Heat Pump Connections Electrical Connections and Wiring Wiring Diagram – (Single Phase – 50/60 Hz)

Connecting to an Automation System ...............

Remote Operation/Relay Remote Controls

Operating the Heat Pump ....................................

Energy Saving Tips Heat Pump Control Panel Overview Operator Menu Tree Guide

Stopping and Starting the Heat Pump

Changing the Set Point - TANK1 and TANK2

Heat, Cool, and Auto Modes

Activate Heat Pump Timer

Relay Remote

iii

1 1 1 1

2 2

2 2 3 3 4 4 5 6 6 6 8 9

11 11 12 13 13 13 13 13

AutoSet Operation Extend Mode Timers and Delays Control Panel Alarm Messages

Service Menu Tree Guide

Set Water Temperature Offset Defrost Cycle

Locking the Control Panel

Maintenance ........................................................

Water Chemistry Winterizing Spring Start Up Inspection and Service Owner Inspection Professional Maintenance and Service

Technical Information ........................................

Electrical Supply - Voltage Requirements Temperature Resistance Chart Ambient/Water Flow Table for Professional Maintenance and Service Heat Pump Pressure Drop

Troubleshooting .................................................

Replacement Parts .............................................

Illustrated Parts View Parts List

14 14 15 15 16 17 17 17

18 18 18 18 18 19

20 20

21 21

26 27

For energy saving tips, refer to page 11, under “Operating the Heat Pump”. For technical data, voltage requirements, or ambient/water ﬂow information, refer to page 20-21 at the back of the manual.

P/N 475093 Rev. A 6/11/14

XLHP™ High Performance Heat Pump Installation and User's Guide

IMPORTANT WARNING AND SAFETY INSTRUCTIONS

Important Notice:

This guide provides installation and operation instructions for the XLHP™ Heat Pump. Consult Pentair with any questions regarding this equipment.

Attention Installer: This guide contains important information about the installation, operation and safe use of this product. This information should be given to the owner and/or operator of this equipment after installation or left on or near the heat pump. This heat pump is for use for

aquaculture installations ONLY. Do not use with any type of swimming pool, hot tub, or spa.

Attention User: This manual contains important information that will help you in operating and maintaining this heat pump. Please retain it for future reference. This heat pump is for use for aquaculture installations ONLY.

Do not use with any type of swimming pool, hot tub, or spa.

Warnings and safety instructions for Pentair Aquatic Eco-Systems heat pumps and other related products are available at:

http://www.pentairaes.com or call U.S. (877) 347-4788 • International (407) 886-3939 for additional free copies of these instructions.

Before installing this product, read and follow all

warning notices and instructions which are included. Failure to follow safety warnings and instructions can result in severe injury, death, or property damage.

Codes and Standards

XLHP heat pumps are listed by ETL as complying with the latest edition of the “UL Standard for Safety for Heating and Cooling Equipment”, UL 1995 and CSA C22.2 No. 236.

All Pentair heat pumps must be installed in accordance with the local building and installation codes as per the utility or authority having jurisdiction. All local codes take precedence over national codes. In the absence of local codes, refer to the latest edition of the National Electric Code (NEC) in the United States and the Canadian Electric Code (CEC) in Canada for installation.

RISK OF ELECTRICAL SHOCK OR ELECTROCUTION.

The electrical supply to this product must be installed by a licensed, certiﬁed electrician or qualiﬁed personnel in accordance with the National Electrical Code and all applicable local codes and ordinances. Improper installation will create an electrical hazard which could result in death or serious injury to equipment users, installers, or others due to electrical shock, and may also cause damage to property. Read and follow the speciﬁc instructions inside this guide.

Warranty Information

Heat pumps are sold with a limited factory warranty. Details are speciﬁed on the warranty card. Make all warranty claims to an authorized Pentair dealer or directly to the factory. Claims must include the heat pump serial number and model (this information can be found on the rating plate), installation date, and name of the installer. Shipping costs are not included in the warranty coverage. This warranty does not cover damage caused by improper assembly, installation, operation, improper water chemistry balancing or other chemical abuse, or improper sanitation application, winterizing, ﬁeld modiﬁcation, or failure to earth bond and properly ground the unit. Any changes to the heat pump, evaporator, heat exchanger, wiring, or improper installation may void the warranty.

General Speciﬁcations

Installation Location Certiﬁed for use: OUTDOOR USE ONLY. Failure to provide the proper clearances outlined on page 3 will lower the performance of the heat pump and void the warranty. Water Pipe/Heater Connection — Plastic 2” PVC (Unions included)

Flow Rate

Maximum 120 gpm [456 lpm] - If system ﬂow rate exceeds 120 gpm, a bypass valve is required. Minimum 30 gpm [110 lpm] Maximum Working Water Pressure 50 psi

For Electrical Supply and Voltage Requirements, refer to the table on page 20.

Do not permit children to use this product.

XLHP™ High Performance Heat Pump Installation and User's Guide

OPERATOR

MENU TREE

TANK1

IDLE/HEAT/COOL

SET=__ ACT=__

TANK2

IDLE/HEAT/COOL

SET=__ ACT=__

HEAT / COOL / AUTO

SET TO - H/C/A

HEAT PUMP RUNTIME

REMAINING = NONE

REMOTE MODE

OFF/RELAY

AUTOSET

OVERRIDE IS ON/OFF

ALARM STATUS

RESTA RT / PUMP START /

SENSING WATER TEMP

DELAYS

SUCTION TEMP

ACTUAL = ___

HEAT/COOL/AUTO MODE

TANK1/TANK2

***

****

EXTEND

OVERRIDE IS ON/OFF

HEAT/COOL/AUTO

SERVICE

MENU TREE

LANGUAGE - IDIOMA - LANGUE

ENGLISH / ESPANOL / FRANCAIS

SOFTWARE VERSION

REV. ____

PUMP START TIME

TIME = 1 - 4 HRS

TEMPERATURE SCALE

FAHRENHEIT / CELSIUS

PRESS TANK1/TANK2

TO EXIT SETUP

WP HP LP T1 T2

1 1 1 0 0

FAN COMP PMP REV

1 1 1 0

DEFROST

ENABLE / DISABLE

WATER TEMP OFFSET

OFFSET = -2 TO +2

PUMP START DELAY

TIME = 0 - 5 MINS

EXTEND

ENABLE / DISABLE

AUTOSET

ENABLE / DISABLE

†

††

RUN TIMES/COUNTS

OR TO VIEW

TEMP. RECORD

HOUR # ___ ___°F

iii

XLHP™ HEAT PUMP MENU TREE QUICK START GUIDE

1. Push the ON/OFF button to turn the unit on, the green “ON” light should be lit.

2. Select either TANK1 or TANK2 mode. The default is TANK1 mode.

3. Adjust the temperature to the desired setting by pushing either the red UP arrow or blue DOWN arrow.

4. Allow 5 minutes for compressor restart delay.

See pages 12-17 for details on the operator menu and service menu screens on the control panel.

XLHP™ High Performance Heat Pump Installation and User's Guide

Menu appears only if Heat and Cool mode is enabled

at the factory.

Menu appears only if Autoset or Extend is enabled in the Service Menu.

***

Menu appears only if a delay is active.

****

Menu appears only if defrost is enabled in the Service Menu.

INPUT STATUS

†

WP = WATER PUMP SWITCH HP = HIGH REFRIGERANT PRESSURE SWITCH LP - LOW REFRIGERANT PRESSURE SWITCH T1- TANK1 REMOTE T2 - TANK2 REMOTE

THE NUMBER ONE (1) IS DISPLAYED WHEN THE ASSOCIATED INPUT/ OUTPUT IS ON AND ZERO (0) IS DISPLAYED WHEN INPUT/OUTPUT IS OFF.

OUTPUT STATUS

††

FAN - FAN COMP - COMPRESSOR PMP - FILTER PUMP REV - REVERSING VALVE

BEFORE INSTALLING THE HEAT PUMP

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.

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

38.7"

(983 mm)

4.5"

(114 mm)

9.25"

(235 mm)

11.25"

(286 mm)

34.0"

(864 mm)

32.0"

(813 mm)

30.7"

(780 mm)

INSTALLATION AND LOCATION

When equipment is located below the water surface, a leak from any component can cause large scale water loss or ﬂooding. Pentair Aquatic Eco-Systems, Inc. cannot be responsible for such water loss or ﬂooding which may cause damage to property or to the product. Avoid placing the heat pump in locations where it can cause damage by water or condensate leakage. If this is not possible, provide a suitable drain pan to catch and divert any leakage.

Only a qualiﬁed service person should install the XLHP™ Heat Pump. Before installing this product, refer to the Important Warning and Safety Instructions on page ii.

Materials Needed for Installation

The following items are needed and are to be supplied by the installer for all heat pump installations:

1. Plumbing connections (2-inch).

2. Level surface for proper drainage.

3. Suitable electrical supply line. See rating plate on unit for electrical speciﬁcations. A junction box is not needed at the heat pump; connections are made inside of the heat pump electrical compartment. Conduit may be attached directly to the heat pump jacket.

4. Electric cutout switch that will interrupt all power to the unit. This switch must be within line of sight of the heat pump. Check local codes for requirements.

5. Watertight conduit to run the electrical supply line.

Equipment Pad

For proper drainage of condensation and rain water, place the heat pump on a ﬂat slightly pitched surface, such as a concrete or fabricated slab (pad).

If possible, place the pad at the same level or slightly higher than the ﬁlter system equipment pad.

Note: Be sure that the pad is pitched not more than 1/4 in. per foot in any direction as needed for runoff.

Drainage and Condensation

Condensation occurs from the evaporator coil while the unit is running, and drains at a steady rate (usually three to ﬁve gallons per hour), depending upon ambient air temperature and humidity. The more humid the ambient conditions, the more condensation will be produced.

The bottom of the unit acts as a tray to catch rainwater and condensation. Keep the drain holes, located on the bottom pan of the base of the unit, clear of debris.

Roof Run-off

Make sure the heat pump is not located where large amounts of water may run-off from a roof into the unit.

Sharp sloping roofs without gutters will allow massive amounts of rain water, mixed with debris from the roof to be forced through the unit. A gutter or down spout may be needed to protect the heat pump.

Lawn Sprinklers Avoid placing lawn sprinkler near the heater -

they can spray water into the heater and void the warranty. Be sure to direct any spraying water away

from the heater. Note the wind direction to be sure water from sprinklers is not blown toward the heater. Sprinkler heads can produce high water pressure and spray at an angle, different from typical rain and humid weather. Also, sprinklers connected to a well water system can cause mineral build up on the evaporator coils and electronics. Salt water can also be an issue if located near the coast.

XLHP™ High Performance Heat Pump Installation and User’s Guide

Dimension “A” of 120 H/C & 140 H/C = 45.5” (1156 mm)

Heat Pump Dimensions

NO SPRINKLERS

Location and Clearances

All criteria given in the following sections reﬂect minimum clearances. However, each installation must also be evaluated, taking into account the prevailing local conditions such as proximity and height of walls, and proximity to public access areas.

The XLHP™ Heat Pump must be placed to provide clearances on all sides for maintenance and inspection.

1. At least 24 in. [610 mm] access must be available in

the front and 12 in. [305 mm] on all the other sides of the heat pump for service and proper air ﬂow. (Manufacturer’s recommendation).

2. If the heat pump is to be installed under a cover or under a vertical overhang, the unit must have a minimum of 5 ft [1.52 m] clearance from the top of the heat pump. (Manufacturer’s recommendation).

3. Install a minimum of 5 ft [1.52 m] from the body of water unless the heat pump is separated from the body of water by a 5 ft [1.52 m] high solid fence or other permanent barrier. Canadian installations require a minimum of 3 meters from the body of water.

4. Install heat pump a minimum of 6 in. [153 mm] from any wall or large obstacle.

OPEN

AIR FLOW OUT

EVAPORATOR

COILS

OVER HANG

FT min.

(1520 mm)

12"

min.

(305 mm)

SLAB

Anchor Clamp Installation

Installation of the anchor clamps is recommended in all installations. Installation of the anchor clamps is required in Florida (see Florida Building Code 301.13).

Anchor clamps hold the heat pump to the equipment pad in order to withstand high winds caused during extreme weather (i.e. hurricanes).

To install the anchor clamps:

1. Be sure the heat pump is in its permanent location on the equipment pad.

2. Place the clamps at the base of the heat pump in the four (4) locations, shown in the image to the right.

Note: Bolts and bolt anchors are not included with the heat pump. The installer must provide 1/4” x 1-3/8” stainless steel anchor bolts and the appropriate size concrete anchor to mount the clamp to the equipment pad. Be sure to check local codes.

3. Fit the hook of each clamp over the lip on the base panel of the heat pump. The hook should ﬁt between the lip of the base panel and the evaporator coil guard.

SERVICE ACCESS

24" min.

(610 mm)

12"

min.

(305 mm)

Heat Pump Location and Clearances

(76 mm)

Heat Pump

Clamps

XLHP™ High Performance Heat Pump Installation and User’s Guide

SLAB

min.

(153 mm)

AIR FLOW IN

Anchor Clamp Installation

Heat Pump

Clamps

HEAT PUMP

Anchor Clamp Installation, Continued

4. Mark the position of the hole in each clamp on the equipment pad.

5. Use a masonry drill bit and drill a hole in the cement with a diameter as determined by the concrete anchor, at each of the marks on the equipment pad. The hole should be approximately 1½ in. deep.

6. Insert a bolt anchor into each of the holes. Be sure the anchors are set completely into the holes.

7. Position the anchor clamps so that the holes in the clamps are over the bolt anchors.

Be sure that the clamp hooks are over the lip of

the heat pump base.

8. Insert an anchor bolt through each clamp into the anchor and tighten to secure the clamp and heat pump to the equipment pad.

AIR COIL GUARD

AIR

COIL

1-3/8" HEX BOLT

(installer provided)

HEAT PUMP

BASE

EQUIPMENT PAD

CONCRETE

ANCHOR CLAMP

BOLT ANCHOR

(installer provided)

Water Connections and Plumbing

The image below shows the standard plumbing layout with a single XLHP™ Heat Pump unit. Follow the image from right to left for the standard plumbing sequence.

Arrangement of aquaculture system components (other than the standard plumbing image below), and the location of the heat pump (above or below the water surface) can affect the operation of the heat pump’s water pressure switch.

The pressure switch can be adjusted to accommodate this effect if the heat pump water connections are no more than 6 ft below the water surface.

See instructions for pressure switch adjustment on the next page. If the heat pump is installed outside of this range, an external pressure switch may need to be installed in the plumbing upstream of the heat pump.

Note: Be advised that when equipment is located below the water surface a leak can result in large-scale water loss or ﬂooding. Pentair is not responsible for such water loss or ﬂooding or damage.

Automatic Flow Control Valve

The inlet/outlet header of the heat pump comes equipped with an internal automatic ﬂow control valve. The automatic ﬂow control valve maintains the proper ﬂow through the heat pump at rates up to 120 gpm (456 lpm). If the ﬁlter system ﬂow rate is higher than 120 gpm (456 lpm), install a manual bypass valve, see image below.

Note: Be advised that if your circulation pump is over 2 HP or if the total ﬂow exceeds 120 gpm (456 lpm), you will have to add an external bypass valve. Excess water ﬂow will damage the heat exchanger.

Anchor Clamp Installation

CHEMICAL FEEDER

TO BODY OF WATER

XLHP™ High Performance Heat Pump Installation and User’s Guide

MANUAL BYPASS VA LVE

(Optional)

Standard Plumbing Layout

FILTER

PUMP

FROM BODY OF WATER

Water Connections to the Heat Pump

2 in. Quick Connect ﬁttings have been installed on the water inlet and outlet connections. Filtered cool water is plumbed to the inlet, located on the right side of the XLHP™ Heat Pump. Heated water ﬂows through the outlet, located on the left side of the heat pump.

Plastic piping (PVC Schedule 40) should be connected to the heat pump. The unions, provided with the unit, accept 2 in. PVC pipe.

WATER

INLET UNION

WATER

OUTLET UNION

Heat Pump Water Connections

Always be sure that flow requirements and water turnover rates can be maintained with the

installation of additional heat pumps and plumbing restrictions.

Water Pressure Switch Adjustment

The pressure switch is preset at the factory for activation at 1.5 psi [10 kPa]. This factory setting works for most basic installations. Only adjust the water pressure switch if the heat pump does not operate when the proper ﬂow is applied to unit or if the heat pump does not shut off when the ﬁlter pump is off. Occasionally, unusual plumbing conﬁgurations or necessary restrictions in the plumbing may cause pressure sensing problems. In these rare situations, the plumbing system conﬁguration may require adjustment of the water pressure switch.

Adjustment of the pressure switch may be necessary if any part of the ﬁlter system piping is 3 feet [0.91 m] or more above the top of the heat pump.

In general, if the heat pump is installed more than 6 ft [1.83 m] below the water surface, an external water ﬂow switch must be added to the plumbing system.

On some installations, the piping from the heat pump to the body of water is very short. The back pressure could be too low to trigger the pressure switch. If this

The water pressure switch should be adjusted to

turn the heater off when the pump is off. Setting the switch to close at too low of a ﬂow can damage the appliance. Adjust the switch to turn the heater off, not on.

happens, install a directional ﬁtting or elbow where the return line enters the body of water. This will increase back pressure for the heat pump to operate properly. Be sure to check that the system ﬂow is above the minimum requirement of 30 gpm (110 lpm) after the directional ﬁtting installation.

Be sure the ﬁlter is clean before making any pressure switch adjustment: A dirty ﬁlter will restrict the water ﬂow and the pressure switch cannot be adjusted properly.

To adjust the pressure switch:

The following adjustment is for installations where the heat pump is below water level.

1. Be sure that all valves in the system are set to allow water ﬂow through the heat pump. Start the ﬁlter pump.

2. Set the heat pump temperature above the actual temperature to call for heat. Turn the heat pump ON.

3. Once the heat pump is running, turn off the ﬁlter pump. The heat pump should turn off immediately.

4. If the heat pump continues to operate when the ﬁlter pump is off, then the water pressure switch needs to be adjusted.

5. Remove the heat pump’s left front panel and remove remaining right front panel. The water pressure switch is located in the water plumbing in the lower right corner of the heat pump.

6. Slowly rotate the adjustment wheel on the water pressure switch in a clockwise direction until the “LOW WATER FLOW” Alarm shows on the LCD, the red SERVICE light turns ON, and the heat pump stops.

7. Check the setting of the water pressure switch by starting and stopping the ﬁlter pump and checking the control panel and operation of the heater between each ﬂow change.

8. If the water pressure switch cannot be adjusted to accommodate the conditions listed above, an exter nal ﬂow switch must be added to the plumbing system to ensure that the heat pump will not operate without the proper ﬂow through the heat exchanger.

The following adjustment is for installations where the heat pump is above water level.

1. Be sure that all valves in the system are set to allow water ﬂow through the heat pump. Start the ﬁlter pump.

2. Set the heat pump temperature above the actual temperature to call for heat. Turn the heat pump ON.

3. If the LCD shows a “LOW WATER FLOW” Alarm and red SERVICE light is present then the water pressure switch needs to be adjusted.

XLHP™ High Performance Heat Pump Installation and User’s Guide

FROM SOLAR

Water Pressure Switch Adjustment, Continued

4. Remove the XLHP™ Heat Pump’s left front panel and remove remaining right front panel. The water pressure switch is located in the water plumbing in the lower right corner of the heat pump.

5. Slowly rotate the adjustment wheel on the water pressure switch in a counterclockwise direction until the “LOW WATER FLOW” Alarm and red SERVICE light vanish, time delay countdown will start.

6. Once the heat pump is running, turn off the ﬁlter pump. The heat pump should turn off immediately.

7. If the heat pump continues to operate when the ﬁlter pump is off, turn the adjustment wheel on the water pressure switch in a clockwise direction until the “LOW WATER FLOW” Alarm shows on the LCD, the red SERVICE light turns ON, and the heat pump stops.

8. Check the setting of the water pressure switch by starting and stopping the ﬁlter pump and checking the control panel and operation of the heater between each ﬂow change.

9. If the water pressure switch cannot be adjusted to accommodate the conditions listed above, an external ﬂow switch must be added to the plumbing system to ensure that the heat pump will not operate without the proper ﬂow through the heat exchanger.

12"

min.

(305 mm)

Multiple Unit Installation

1. Heat Pump, Heater and/or Solar Combination

In certain regions of the country it may be more economical to run a heat pump during the warmer months and a gas heater during the cooler months. In some situations it may be desirable to run the heat pump in the “Chiller” mode, if so equipped, during the hottest portion of the year and a heater during the cooler months. The Pentair heat pump may be used in conjunction with a gas or electric heater or any combination of heat sources including solar. All heat sources must be plumbed in series to work correctly and efﬁciently.

A recommended plumbing layout for a heat pump / heater / solar combination heating system for an aquaculture combination is shown below. Your system may not contain all of these components, but the basic plumbing will apply by eliminating the component in the illustration that is not a part of your system.

2. Multiple Heat Pump Connections

All plumbing on multiple heat pump installations must be done in parallel (see image below). An equal ﬂow of water to each heat pump is important for optimum operation.

Note: It may be necessary to adjust the water pressure switch if a unit is installed below the water level. Refer back to page 5 for details on when and how to adjust the pressure switch.

Each heat pump allows a maximum ﬂow rate of 100 gpm (380 lpm) and requires a minimum of 30 gpm (110 lpm).

TANK 1

RETUR

TANK 2 MAKE-UP

TANK 2

TANK 2 DRAIN

CHECK

VALVE

FILTE

TANK 1 DRAIN

TANK 1

TANK 2

XLHP™ High Performance Heat Pump Installation and User’s Guide

HEAT PUMP

CHECK

PUMP

VALVE

FROM SOLAR

TO SOLAR

Multiple Unit Installation: Heater and/or Solar Combination

Extend 12" (305 mm)

past end heater

inlet for hydraulic

balancing

Extend 12" (305 mm) past end heater inlet for hydraulic balancing

Pump

Flow Meter

Minimum

2" PVC Pipe

Flow Meter

To Body of Water

OPTIONAL

2" Check Valve Bypass

Check Valves are optional on heater inlets but will help system balancing

60 GPM (220 lpm)

Minimum

24"

(610 mm)

(153 mm)

12"

(305 mm)

Extend 12"

(305 mm) past

end heater

inlet for hydraulic

balancing

Extend 12" (305 mm) past end heater inlet for hydraulic balancing

Pump

Flow Meter

Minimum

3" PVC Pipe

2" PVC Pipe

Flow Meter

To Body of Water

3" Ball Valve Bypass

Check Valves are optional on heater inlets but will help for system balancing

12"

(305 mm)

2" PVC Pipe2" PVC Pipe

2" PVC Pipe

3" PVC Pipe3" PVC Pipe

120 GPM (456 lpm)

Minimum

24" (610 mm) min. clearance for service access.

(153 mm)

Multiple Unit Installation

Two Heat Pump Plumbing Layout

Four Heat Pump Plumbing Layout

XLHP™ High Performance Heat Pump Installation and User’s Guide

Electrical Connections and Wiring

RISK OF ELECTRICAL SHOCK OR ELECTROCUTION.

This heat pump contains wiring that carries high voltage. Contact with these wires could result in death or serious injury to equipment operators, installers, or others due to electrical shock, and may also cause damage to property. Always disconnect power circuit before connecting the heat pump.

Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

General Information

Wiring connections must be made exactly as shown in the wiring diagram found on the inside of the heat pump access panel; see the wiring diagram on page 9.

The XLHP™ Heat Pump must include a deﬁnite means of grounding and bonding. There is a ground lug inside the heat pump electrical compartment and a bonding lug on the left side of the heat pump.

Bonding

The National Electrical Code and most other codes require that all metallic components of an aquaculture structure, including reinforcing steel, metal ﬁttings, and above ground equipment be bonded together with a solid copper conductor not smaller than 8 AWG. The heat pump, along with pumps and other equipment must be connected to this bonding grid. A bonding lug is provided on the left side of the heat pump to ensure this requirement is met.

This heater must be connected to a bonding grid with a solid copper wire not smaller in diameter than 8 ga.

Main Power

Electrical wiring to the heat pump must be in accordance with the latest edition of the National Electric Code (NEC), ANSI/National Fire Protection Association (NFPA) 70 in the United States, and in Canada, the Canadian Electrical Code (CEC) C22.1, unless local code requirements indicate otherwise. All wiring must be done by a certiﬁed or qualiﬁed electrician.

The following is the procedure to wire the heat pump to the electrical source:

Be sure the power to the circuit for the heat pump is turned off.

1. Remove the front left panel of the heat pump cabinet, (you do not need to remove the torque head screw at the top left corner).

2. Remove the service panel to the heat pump electrical compartment. (Front left corner of unit)

3. Electrical supply lines must be run through watertight conduit. Run the wires and conduit from the power source and connect them to the conduit connection on the left side of the heat pump.

4. Connect the power leads to the bottom terminals on the main compressor contactor as shown in the wiring diagram.

5. Verify that all other contactor wires are secure, they may have loosened during shipment.

6. Connect the ground wire to the ground lug provided on the bottom of the electrical compartment.

7. Replace the service panel and reinstall screws to hold it in place.

8. Replace the front left panel.

9. Connect a copper bonding wire (8 AWG) to the bonding lug on the left side of the heat pump.

XLHP™ High Performance Heat Pump Installation and User’s Guide

Compressor

24 VAC

1 2 3 4 5 6

Fan

Water Pres Sw

Lo Ref Pres Sw

Hi Ref Pres Sw

TBL

TBR

Optional

Reversing Valve

1 2 3 4 5 6 7 8

WHITE

BLUE

YELLOW

BLUE

YELLOW

WHITE

BLACK

RED

BLACK

RED

BLACK

RED

PURPLE

WHITE

GREEN

COM

3-WIRE REMOTE

TERM.

PWR

RS-485

BLACK

OUTPUTS

BLACK

WHITE

PURPLE

BLACK

Capacitor

COMPRFAN

FANHERM C

Transformer

208V

240V

24 VAC

COM

Fan

Relay

BLACK

RED

BLACK

BLUE

WHITE

/RED

WHITE

/RED

WHITE/RED

WHITE

PURPLE

ORANGE

BLACK

YELLOW

TAN

WHITE

BROWN

PINK

PURPLE

BROWN

REDBLACK

WHITE/RED

Incoming 230 VAC Power Connection

See Users Guide

for instructions on

connecting to filter

pump

AutoSet Contactor

GREEN

PINK

TAN

ORANGE

/RED

10K ohm

Thermistors

GREEN

Compressor

Contactor

SPAPOOL

LABEL P/N 473073 REV. E

HEAT PUMP CONTROL BOARD

Wiring Diagram – (Single Phase – 50Hz/60Hz)

XLHP™ High Performance Heat Pump Installation and User’s Guide

24 VAC

Heat Pump ControlBoard

THERM1 THERM2

COM

SPAPOOL

INPUT

SWITCHES

WTR

TEMP

DEF

TEMP

3-WIRE REMOTE

TERM.

PWR

OUTPUTS

RS-485

PIN 2

(Green)

PIN 3

(Yellow)

CONNECTING TO AN AUTOMATION SYSTEM

Remote Operation

The XLHP™ Heat Pump may be connected to an automation system via the remote spade terminals on the back of the control board.

Relay Remote Controls

Electrical wiring must be in accordance with the latest edition of the NEC (NFPA 70) in the United States and CEC (CSA 22.1) in Canada, unless local code requirements indicate otherwise.

To connect remote control equipment to the heat pump, perform the following steps:

1. Turn off the power to both the remote aquaculture control system and the heat pump.

2. Remove the front left panel of the heat pump cabinet, (you do not need to remove the torque head screw at the top left corner).

3. Remove the 4 bezel retaining screws from above the electrical compartment and rotate the bezel downward. This will allow you to access the Remote terminals on the back of the heat pump control board for the remote control installation.

4. Run the wires from the aquaculture remote control system into the upper electrical compartment.

5. Connect the wiring from the aquaculture remote control system to the heat pump remote control terminals using ¼ in. “Spade” connectors as shown in the image below.

6. Rotate the bezel back upwards into position and reinstall the 4 retaining screws.

7. Replace the electrical service panel.

8. Replace the front left panel.

9. Restore power to the heat pump and the aquaculture remote control system.

10. Press the MENU SELECT button repeatedly to scroll to the Remote Mode screen. Toggle the selection by pressing one of the arrows until the screen displays “Relay”.

11. Turn on the heat pump.

*Note: The XLHP heat pump has been tested and rated as an Aquaculture duty product, however, it is based upon a heat pump product platform that is also used in the swimming pool industry. The heat pump’s control board was originally developed for use in swimming pool applications and the Relay Remote spade terminals are labeled “POOL” and “SPA”. In the aquaculture application these labels correspond to “TANK1” and “TANK2” respectively.

XLHP™ High Performance Heat Pump Installation and User’s Guide

¼ in. “Spade”

connectors (*)

OPERATING THE HEAT PUMP

Do not use this heat pump if any part has been under water. Immediately call a qualiﬁed service technician to inspect the heater and replace any part of the control system which has been under water. Keep all objects off the top of the heat pump. Blocking air ﬂow could damage the unit and may void the warranty.

ATTENTION - INITIAL START UP PRECAUTIONS

After the water pressure switch is activated there is a one minute temperature sensing delay then if there is a call for heat or cool the fan will turn on and there will be an additional 5 minute delay for the compressor to start. Be sure that there is water in the system and that the water level is above the inlets of the ﬁlter system.

The pump must be on and water ﬂowing through the heat pump for it to operate.

With any new aquaculture installation, operate the ﬁlter pump with the heat pump off long enough to completely clean the water. This will remove any installation residue from the water. Clean the ﬁlter at the end of this operation before starting the heat pump. When raising the temperature of a cold body of water, program the time clock to run the pump continuously. This lets the ﬁlter system and heat pump operate continuously until the water reaches the temperature setting on the temperature control. When that happens, the heat pump will automatically shut off, but the ﬁlter pump will keep running.

Energy Saving Tips

It is important to note that a XLHP™ Heat Pump will not heat a body of water as fast as a large gas or electric heater. If the water is allowed to cool signiﬁcantly, it may take several days to return to the desired temperature.

For short-term use, it is more economical to maintain the water temperature at or near the desired temperature. For extended non-use, turn the heat pump completely off or decrease the temperature setting of the control several degrees to minimize energy consumption.

Pentair offers the following recommendations to help conserve energy and minimize the cost of operating your heat pump without sacriﬁcing performance.

1. Carefully monitor the water temperature of your system in the summertime. You can reduce heat pump usage due to warmer air temperatures.

2. Find the proper setting on the heat pump temperature control and use the Keypad Lock function to discourage further adjustments.

3. Where possible, shelter the body of water from prevailing winds with well-trimmed hedges or other landscaping or fencing.

Heat Pump Control Panel Overview

1. ON/OFF button – Turns the heat pump On and Off.

2. MENU SELECT button – Displays Operator Menu

Screens; also used to scroll through these menus.

3. TANK1/TANK2 button – If pressed once, the current

HEAT, COOL or AUTO mode will be displayed along with the active set point, TANK1 or TANK2.

Pressing again will toggle between TANK1 or TANK2

set point screens. The operator can also toggle between the TANK1 and TANK2 set point by using the UP and DOWN arrows.

4. UP and DOWN Arrow buttons – The UP and DOWN

arrows will raise or lower the temperature set point if pressed while the run screen is displayed. They are also used to scroll through the various parameter values on the Operator Menu screens and Service Menu screens.

5. LCD SCREEN – Displays water temperature, set

point temperature and heat pump parameters.

6. ON Light – Shows the heat pump is on.

7. SERVICE Light – Lit if alarm condition exists.

TANK1 IDLE °F

SET = 78 ACT = 78

XLHP™ High Performance Heat Pump Installation and User’s Guide

OPERATOR

MENU TREE

Operator Menu Tree Guide

(Press MENU SELECT Button)

TANK1

IDLE/HEAT/COOL

SET=__ ACT=__

TANK2

IDLE/HEAT/COOL

SET=__ ACT=__

HEAT / COOL / AUTO

SET TO - H/C/A

HEAT PUMP RUNTIME

REMAINING = NONE

REMOTE MODE

OFF/RELAY

AUTOSET

HEAT/COOL/AUTO

OVERRIDE IS ON/OFF

EXTEND

HEAT/COOL/AUTO

OVERRIDE IS ON/OFF

RESTA RT / PUMP START /

SENSING WATER TEMP

DELAYS

***

****

SUCTION TEMP

ACTUAL = ___

ALARM STATUS

HEAT/COOL/AUTO MODE

TANK1/TANK2

Menu appears only if Heat and Cool mode is enabled

at the factory. Menu appears only if AutoSet or Extend is enabled in the

Service Menu. Menu appears only if a delay is active.

***

Menu appears only if Defrost is enabled in the Service Menu.

****

XLHP™ High Performance Heat Pump Installation and User’s Guide

Navigating the Operator Menu Screens

Press the MENU SELECT button to view each screen. While in the menu screens, if no activity is detected after 15 seconds, the main screen is displayed.

1. TANK1 and TANK2 Run Screens

Displays whether the heat pump is idle, heating or cooling if the TANK1 or TANK2 set point is active. Displays the water temperature set point and the actual measured water temperature.

2. Heat or Cool Mode Selection Screen

This screen is only shown on Auto Heat and Cool heat pumps. This screen allows the operator to switch the heat pump between Heat-only, Cool-only and Auto Heat/Cool modes.

3. Heat Pump Timer Screen

This feature is an adjustable timer to allow the heat pump to run (green light ON) for a predetermined amount of time and then turn OFF (green light OFF).

4. Relay Remote On/Off Screen

Allows the operator to turn the Relay Remote mode On and Off. In Relay Remote mode, the heat pump is controlled by an automation controller. The local TANK1 or TANK2 set points are not active in this Relay Remote mode.

5. AutoSet On/Off Screen

This screen is only shown if the AutoSet mode is enabled in the Service Menu Tree; it allows the operator to turn the AutoSet mode On and Off. AutoSet mode periodically energizes a contactor to start a remote ﬁlter pump which allows the heat pump to heat or cool the water as necessary.

6. Extend On/Off Screen

This screen is only shown if the Extend mode is enabled in the Service Menu Tree; it allows the operator to turn the Extend mode On and Off. Extend mode energizes a contactor for one cycle and starts a remote ﬁlter pump which allows the heat pump to heat or cool the water as necessary.

7. Time Delay Screen

***

If the heat pump is waiting on any restart, pump start, or sensing water temperature delays, this screen shows how much delay time is left.

8. Suction Temperature Screen

****

Shows the suction line temperature of the refrigerant. This screen appears if the Defrost is enabled.

9. Alarm Screen

Shows if an alarm condition is present. If no alarms are present the screen will display ALARM STATUS NONE. The control board has the ability to store a 30 Alarm history of previous alarms that have occurred. At the alarm status screen, press the DOWN arrow. The ﬁrst alarm will be the most recent alarm that has occurred. Successive presses (up to 30) of the DOWN arrow will display the alarm history in the order of occurrence. The operator can scroll back up using the UP button. There is an option to erase the history.

10. Operation Mode Screen

Displays whether the heat pump is in Heat only, Cool only or Auto mode. It also displays whether the TANK1 or TANK2 set point is active. The active set point can be switched between TANK1 and TANK2 by using the UP and DOWN arrows.

TANK1 HEAT °F

SET=___ ACT=___

HEAT PUMP RUNTIME

REMAINING = NONE

Using the Control Panel

Starting and Stopping the Heat Pump

The XLHP™ Heat Pump is started and stopped with the ON/OFF button.

1. Starting - With power supplied to the heat pump, press the ON/OFF button to start the heat pump. The ON light should be lit.

2. Stopping - Press the ON/OFF button to stop the heat pump; the ON light will turn off. The screen shown below will be displayed temporarily.

PENTAIR AQUATICS

HEAT PUMP OFF

Changing the Set Point (Temperature)

The control board has two independently adjustable temperature set points. One is for the TANK1 temperature control and the other is for the TANK2 temperature control. The active mode of operation (TANK1 or TANK2) is deﬁned as the “active” set point.

1. Press the MENU SELECT button repeatedly until the associated run screen is displayed. Press the UP or DOWN arrows to adjust the TANK1 or TANK2 temperature set point.

SET= __ - Set point ACT= __ - Actual measured water temperature

2. The screen automatically returns to the active run screen after 15 seconds of keypad inactivity.

Heat, Cool, and Auto Modes

Certain models have the ability to both heat and cool. These heat pumps can be setup to operate in any one of three modes:

• Heat only mode

• Cool only mode

• Automatic Heat and Cool: The heat pump automatically switches between

heat and cool based on whether the water temperature is below or above the active set point.

1. If the cooling option is available, press the MENU SELECT button repeatedly until the Heat, Cool or Auto screen displays.

2. Press the UP or DOWN arrows to scroll through the heat, cool and auto options. The last option shown on the display becomes active.

Heat Pump Timer

This feature is an adjustable timer to allow the heat pump to run for a predetermined amount of time (green light ON) and then turn OFF (green light OFF).

During the selected time frame, the green light is ON and the heat pump functions in the normal mode of operation. When time expires the green light turns off, and the heat pump turns off. Countdown time is in hours and minutes.

To activate the heat pump timer:

1. Press MENU SELECT repeatedly until the heat pump timer screen is displayed.

2. Press UP or DOWN arrows to set the amount of time (range of 10 minutes to 99 hours). Timer adjusts in increments of 10 minutes.

If the heat pump is not already on, setting the timer will activate

and start the heat pump.

3. The user can also change the time while it is active using the arrow buttons, only if Relay Remote mode is OFF. Turning Relay ON disables the Heat Pump Timer at the control panel.

4. The timer can be disabled by pressing the DOWN arrow and TANK1/TANK2 buttons at the same time, or by pressing the ON/OFF button.

Relay Remote

Note: The XLHP heat pump has been tested and rated as an

aquaculture duty product, however, it is based upon a heat pump product platform that is also used in the swimming pool industry. The XLHP heat pump’s control board was originally developed for use in swimming pool applications and the Relay Remote spade terminals are labeled “POOL” and “SPA”. In the aquaculture application these labels correspond to “TANK1” and TANK2” respectively.

In Relay Remote operation, the heat pump is started and stopped by remote relays which are connected to the remote TANK1, COMMON and TANK2 spade connectors on the back of the control board.

When conductivity is provided between the TANK1 and COMMON connections or the TANK2 and COMMON connections, the heat pump will start. The local Set Points are ignored in Relay Remote operation. All other features and functions (except for the Heat Pump Timer) are still active; the heat pump will not heat above 104˚F or cool below 45˚F.

To activate the Relay Remote Mode:

1. Press MENU SELECT repeatedly until the Remote Mode screen is displayed. Once displayed, press the UP or DOWN arrows to toggle between OFF and RELAY. The last option

shown on the display becomes active.

2. Press MENU SELECT repeatedly until the Heat/Cool/Auto Mode screen is displayed. Press UP or DOWN arrow to toggle between HEAT, COOL and AUTO. Select HEAT or COOL. AUTO is not a valid selection while the heat pump is in Remote mode operation.

RELAY REMOTE

REMOTE ON/OFF

XLHP™ High Performance Heat Pump Installation and User’s Guide

Intermatic

T104

Timer

CLOCK MOTOR

240V

SUPPLY

GROUND

LINE 1 LINE 2

FILTER PUMP

GROUND

AutoSet

Contactor

1 2 3 4

AutoSet

Note: The XLHP™ heat pump has been tested and rated

as an aquaculture duty product, however, it is based upon a heat pump product platform that is also used in the swimming pool industry. The XLHP heat pump’s AutoSet and Extend features were originally developed for use in swimming pool applications; and they may not have any direct uses in an aquaculture setting. If you don't need to utilize the AutoSet or Extend features you may simply ignore them. However, we've described the features/functionality below in the event that you ﬁnd a reason to employ them in you aquaculture application.

The AutoSet feature periodically energizes a contactor which can be connected to activate the ﬁlter pump. The heat pump can now start and stop the ﬁlter pump independent of a time clock, allowing the heat pump to circulate water and sense water temperature. Enable this feature any time the ﬁlter pump is off.

If the temperature is not at the desired level, the heat pump starts and runs until the water reaches the desired temperature. The ﬁlter pump and the heat pump will stop when the water reaches the desired temperature.

AutoSet allows you to set the time interval between the end of the circulation cycle and when the heat pump reactivates the ﬁlter pump to sense the water temperature.

To use this feature:

Be sure the water circulation pump is wired in parallel with a mechanical time clock, using the auxiliary relay supplied in the high voltage power panel of the heat pump.

To enable the AutoSet feature:

1. Press the MENU SELECT button repeatedly until the AutoSet screen is displayed.

2. Press the UP or DOWN arrows to toggle between the ON and OFF options.

3. Set the interval (1-4 hours) from the Pump Start Time menu in the Service Menu Tree.

For example, if you select a Pump Start Time interval of 4 hours and have the AutoSet feature enabled, this is the sequence of events that will happen:

1. The heat pump displays a countdown window after the ﬁlter pump shuts off.

PUMP START DELAY

REMAINING 4:00

2. After four (4) hours, heat pump will switch on and start the ﬁlter pump to sense water temperature.

3. If the water temperature has fallen below your Set Point, the heat pump will turn on and begin heating the body of water. If the water temperature is above the Set Point, the heat pump and ﬁlter pump will shut off.

4. At the time the water circulation pump shuts off, the heat pump will reset and begin the countdown interval and display ‘Pump Start Delay’ again.

5. The heat pump will continue this cycle every time the water circulation pump is shut off.

6. Once the time clock restarts the heat pump, the heat pump will stop the AutoSet feature and resume normal operation.

AutoSet Contactor to Mechanical Timer Wiring Example

Notes:

1. Mechanical timer is not provided with the heat pump.

2. Example only, other timers will be similarly wired.

3. Be sure that the electrical power lines are not crossed when making connections.

Extend

The Extend feature can energize a contactor which can be connected to activate the ﬁlter pump. This allows the heat pump to start and stop the ﬁlter pump independent of the time clock, allowing the heat pump to circulate water and sense water temperature.

If the temperature is not at the desired level, the heat pump starts and runs until the water reaches the desired temperature. The ﬁlter pump and heat pump will stop when the water reaches the desired temperature.

To use this feature: Be sure the water circulation pump is wired in parallel

with the mechanical time clock and the auxiliary relay installed on the high voltage panel of the heat pump.

To enable the Extend feature:

1. Press the MENU SELECT button repeatedly until the Extend screen is displayed.

2. Press the UP and DOWN arrows to toggle between the ON and OFF options.

For example, if you have the Extend feature enabled, this is the sequence of events that will happen:

1. After the ﬁlter pump shuts off, the heat pump immediately senses the water temperature.

2. If the water temperature has fallen below the Set Point the heat pump will start the ﬁlter pump and begin heating the body of water. If the water temperature is above the Set Point the heat pump and ﬁlter pump will shut off.

3. Once the time clock restarts the ﬁlter pump, the heat pump will stop the Extend feature and resume normal operation.

XLHP™ High Performance Heat Pump Installation and User’s Guide

HEAT PUMP RUNTIME

REMAINING = NONE

HEAT PUMP RUNTIME

REMAINING = NONE

HEAT PUMP RUNTIME

REMAINING = NONE

HEAT PUMP RUNTIME

REMAINING = NONE

Control Panel Alarm MessagesTimers And Delays

1. Water Sensing Timer

One (1) minute timer to allow water from the body of water to reach the XLHP™ Heat Pump before acquiring temperature. This timer initiates when water ﬁrst begins to run from stopped or low water ﬂow conditions or when the heat pump is turned ON. Countdown time is in Minutes and Seconds.

SENSING WATER TEMP

REMAINING = 1:00

2. Restart Delay Timer

Five (5) minute timer is a protection feature for the heat pump’s compressor. This extends the life of the compressors by not allowing it to cycle on and off rapidly, (i.e. adjusting set point up and down around actual temperature). Countdown time is in Minutes and Seconds.

RESTART DELAY

REMAINING = 5:00

3. Defrost Delay Timer

Fifteen (15) minute timer where the heat pump is in Defrost operation. Countdown time is in minutes and seconds. Refer to page 17 for more details on the defrost cycle.

HIGH WATER TEMP

LOW WATER TEMP

LOW WATER FLOW

REMOTE TANK1 / TANK2

WATER THERM SHORT

WATER THERM OPEN

SUCTION TH SHORT

SUCTION TH OPEN

Water temperature is above 108° F.

Water temperature is below 40° F.

The pressure switch sensing water ﬂow is open.

TANK1 and TANK2 relay remote inputs are simultaneously energized.

Water temperature thermistor circuit shorted.

Water temperature thermistor circuit open.

Defrost thermistor circuit shorted

Defrost thermistor circuit open.

DEFROST DELAY

REMAINING = 15:00

4. Pump Start Delay

One to four (1-4) Hour timer used in conjunction with the AutoSet feature. Counts down the time until the control board will energize the internal contactor in the heat pump. Countdown time is in Hours and Minutes. See AutoSet section for more details.

PUMP START DELAY

REMAINING 4:00

5. Heat Pump Runtime Timer

This feature is an adjustable timer to allow the heat pump to run (green light ON) for a predetermined amount of time and then turn OFF (green light OFF). During the selected time frame the green light is ON and the heat pump will function in the normal mode of operation and/or the operator can change set points, functions, etc. The heat pump’s green light will turn OFF and the heat pump will stay OFF when time expires.

BROWNOUT

HIGH REFRIG

LOW REFRIG

FIVE ALARMS

The 24 VAC supply voltage to the control board is low.

Refrigerant high pressure switch is open.

Refrigerant low pressure switch is open.

Indicates that 5 faults have occurred in 1 hour. This fault will automatically reset in 1 hour or can be manually reset by pressing the ON/OFF button.

HEAT PUMP RUNTIME

REMAINING = NONE

XLHP™ High Performance Heat Pump Installation and User’s Guide

SERVICE

MENU TREE

LANGUAGE - IDIOMA - LANGUE

ENGLISH / ESPANOL / FRANCAIS

SOFTWARE VERSION

REV. ____

PUMP START TIME

TIME = 1 - 4 HRS

TEMPERATURE SCALE

FAHRENHEIT / CELSIUS

PRESS TANK1/TANK2

TO EXIT SETUP

WP HP LP T1 T2

1 1 1 0 0

FAN COMP PMP REV

1 1 1 0

DEFROST

ENABLE / DISABLE

WATER TEMP OFFSET

OFFSET = -2 TO +2

PUMP START DELAY

TIME = 0 - 5 MINS

EXTEND

ENABLE / DISABLE

AUTOSET

ENABLE / DISABLE

†

††

RUN TIMES/COUNTS

OR TO VIEW

TEMP. RECORD

HOUR # ___ ___°F

Service Menu Tree Guide

(Press UP and DOWN Arrows Simultaneously)

INPUT STATUS

†

WP = WATER PUMP SWITCH HP = HIGH REFRIGERANT PRESSURE SWITCH LP - LOW REFRIGERANT PRESSURE SWITCH T1- TANK1 REMOTE T2 - TANK2 REMOTE

OUTPUT STATUS

††

FAN - FAN COMP - COMPRESSOR PMP - FILTER PUMP REV - REVERSING VALVE

XLHP™ High Performance Heat Pump Installation and User’s Guide

The number one (1) is displayed when the associated input/output is ON and zero (0) is displayed when input/output is OFF.

Navigating the Service Menu Screens

Press the UP and DOWN arrows simultaneously. If no activity is detected after 15 seconds, the display will return to the main screen.

1. Language Selection

Displays the language selected. Select either English, Spanish or French using the UP and DOWN arrows.

2. Software Revision

Displays the software revision level loaded on the control board.

3. Pump Start Time

Displays the period at which the heat pump will close the AutoSet contactor to start the ﬁlter pump. Adjustable from 1 to 4 hours using the UP and DOWN arrows.

4. Pump Start Delay

Displays the time period between heat pump start cycles. Adjustable from 0 to 5 minutes using the UP and DOWN arrows

5. Temperature Scale

Determines if the water temperature actual reading and set point is displayed in degrees Fahrenheit or Celsius. Adjusted between Fahrenheit and Celsius using the UP and DOWN arrows.

6. Temp Offset

Adjusts the measured water temperature up or down to allow the operator to match the heat pump displayed temperature to a remote temperature monitoring device. The offset can be varied from -2 to +2 using the UP and DOWN arrows.

7. Defrost Screen

Allows the user to Enable/Disable defrost cycle.

8. AutoSet Screen

Allows the user to Enable/Disable AutoSet feature.

9. Extend Screen

Allows the user to Enable/Disable Extend feature.

10. Input Screen and Output Screen

†

††

The Input and Output screens are diagnostic displays which show the status of the input sensors and output devices. The number one (1) is displayed when the associated input/output is on and zero (0) is displayed when the associated input/output is off.

11. Temperature Log / Run Time Counters

These screens display a list of compressor, fan and valve run times, and a history of measured water temperatures. This information is provided so the user can easily track performance and troubleshoot.

12. Exit Set Up

Pressing the TANK1/TANK2 button while this screen is displayed returns the display to the Tank 1 or Tank 2 Run Screen as appropriate.

TEMPERATURE SCALE

FAHRENHEIT / CELSIUS

TEMP OFFSET

OFFSET = -2 TO +2

Temperature Scale - C˚ or F˚

The control board can display temperatures in either degrees Fahrenheit or Celsius. The temperature scale in use can be changed from the Service Menu Tree as described below:

1. Press the UP and DOWN arrows simultaneously. The Language Selection screen should be displayed.

2. Then press the MENU SELECT button repeatedly until the Temperature Scale screen is displayed.

3. Press the UP or DOWN arrows to toggle between the Fahrenheit and Celsius options. The last option shown on the display will become active.

Water Temperature Offset

The control board provides the ability to increase or decrease the displayed water temperature by 2 degrees.

To change the temperature offset:

1. Press the UP and DOWN arrows simultaneously.

2. Press the MENU SELECT button repeatedly until the Temperature Offset screen is displayed.

3. Press the UP or DOWN arrows to select the desired offset. The last number shown on the display will become active.

Defrost Cycle

The XLHP™ Heat Pump may enter a defrost cycle if air temperatures are around 50°F (10°C). To enter a defrost cycle the Defrost feature must be enabled in the Operator Menus. Heat only pumps utilize a

passive defrost cycle. Heat and cool pumps use the hot gas cycle by default, but can use either.

Hot Gas Cycle

The hot gas defrost cycle initiates when the evaporator sensor detects refrigerant temperature below the defrost start set point. At this time, the heat pump compressor stops. The heat pump evaporator will continue to run, and draw air over the fan ﬁns. After a short delay the reversing valve will activate and the compressor will restart. This action directs heated refrigerant into the evaporator to quickly thaw the coil.

The compressor will restart after about 10 minutes. The heat pump will not initiate another defrost cycle for a period of 45 minutes, regardless of the refrigerant temperature.

Note: The efﬁciency of a heat pump decreases as air temperature decreases. For maximum efﬁciency, operate the heat pump during the warmest time of day.

Locking the Control Panel

1. Heat pump control panel lock-out – To prevent unwanted adjusting or manipulating of the heat pump settings, the control panel can be locked. Once locked, if any button is pressed, the display will read:

HEAT PUMP

CONTROLS LOCKED

• To activate the control panel lockout, press the

MENU SELECT and TANK1/TANK2 buttons simultaneously.

• To unlock the control panel, press the

MENU SELECT and TANK1/TANK2 buttons simultaneously.

Heat Pump Control Panel

Passive Cycle

The passive defrost cycle initiates when the evaporator sensor detects refrigerant temperature below the defrost set point. At this time, the heat pump compressor stops. The heat pump evaporator fan will continue to run, and will draw air over the evaporator ﬁns for about 15 minutes.

If the refrigerant sensor detects a temperature above the defrost stop temperature (start set point +20˚F), the compressor will restart after the 15 minutes. If not, the unit will shut down.

XLHP™ High Performance Heat Pump Installation and User’s Guide

MAINTENANCE

Water Chemistry

Proper chemical balances are necessary for ensuring your heat pump’s long life.

Be sure to keep your chemical and mineral concentration levels within values acceptable for your individual needs.

Winterizing

Failure to winterize could cause damage to the heat pump and will void the warranty.

In areas where freezing temperatures occur, you should protect your aquaculture system from the elements. Perform the following steps to completely drain the heat pump.

1. Turn off the electrical power to the heat pump at the main breaker panel.

2. Shut off the water supply to the heat pump.

3. Disconnect the water inlet and outlet unions located on the lower front panel of the heat pump.

4. Blow out the water lines.

5. Cover only the top of the heat pump to prevent debris from falling into the unit. Do not wrap the sides of the heat pump with any plastic or other material that will retain heat or moisture inside the unit.

Spring Start Up

If your heat pump has been winterized, perform the following steps when starting the system in the Spring:

1. Uncover the heat pump and inspect the top and sides for any debris or structural problems.

Inspection and Service

Pentair Heat Pumps are designed and constructed to provide long performance life when installed and operated properly under normal conditions.

Periodic inspections are important to keep your heat pump running safely and efﬁciently through the years. Failure to properly maintain your unit can void the warranty.

Owner Inspection

Pentair recommends that you inspect your heat pump on a continual basis and especially after abnormal weather conditions. The following basic guidelines are suggested for your inspection:

1. Make sure the front of the unit is accessible for future service.

2. Keep the top and surrounding areas of the heat pump clear of all debris.

3. Keep all plants and shrubs trimmed and away from the heat pump.

4. Keep lawn sprinkler heads from spraying on the heat pump to prevent corrosion and damage.

5. If the unit is installed under a roof edge, install a gutter or diverter to prevent excessive water and debris from pouring down into the unit.

6. Do not use this heat pump if any part has been under water. Immediately call a qualiﬁed professional technician to inspect the heat pump and replace any part of the control system which has been submerged.

2. Connect the water inlet and outlet unions on the sides of the heat pump.

3. Turn on the ﬁlter pump to supply water to the heat pump. Open the ﬁlter air bleeder and circulate water through the system long enough to bleed all the air out of the aquaculture system. Check for leaks in and around the heat pump.

4. Turn on the electrical power to the heat pump at the main breaker panel.

XLHP™ High Performance Heat Pump Installation and User’s Guide

Continue onto the next page for “Owner Inspection”.

Owner Inspection, Continued

The XLHP™ Heat Pump will produce condensation (water) while in operation. The heat pump base is designed to allow the condensation to exit through the bottom drain port when the unit is running. The condensation will increase as the outdoor air humidity level increases. Check the following at regular intervals to ensure proper condensate drainage:

1. Visually inspect and clear the bottom drain ports of any debris that could clog the ports.

2. Keep the top air ﬂow discharge and air ﬂow intake area clear of debris so the air ﬂow though the heat pump is not restricted. The cooler discharge air from the top should not accumulate and be drawn into the side air intake coils.

3. Be sure the condensate run-off is properly directed away from the equipment pad to keep it from undermining the pad.

4. Be sure the condensate water does not puddle inside the heat pump. To be sure it is condensate water, check for the absence of chemicals.

During normal operation, the heat pump produces three (3) to ﬁve (5) gallons of condensate per hour. If condensate drainage is above this range during operation or if water continues to drain from the base when the heat pump is not in operation for more than an hour, a leak in the internal plumbing may have occurred. Call a qualiﬁed heat pump technician to investigate the problem.

Professional Maintenance and Service

The maximum heat output and efﬁciency of a heat pump is dependent upon the quality and performance of the major components used. Equally important are the environmental conditions (for example, air temperature, humidity, water temperature, and wind).

To maintain maximum performance and efﬁciency, keep the air coil clean from dirt and debris. It is recommended to clean your air coil once a year by ﬂushing the coil with compressed air or hosing off the coil with a garden hose.

Care should be taken to not bend the coil ﬁns as this will restrict the airﬂow and lower your heat pump performance. Compressed air can also damage the heat pump coil. DO NOT USE A PRESSURE CLEANER ON THE UNIT.

The heat pump should be maintained at least once a year by qualiﬁed personnel to maintain maximum performance and efﬁciency. The unit should be powered off during maintenance.

Typical Heating Cycle

XLHP™ High Performance Heat Pump Installation and User’s Guide

120 H/C 140 H/C

Voltage/Phase/Hz

Recommended Fuse Size

Max Fuse Breaker Size

Compressor/Fan Motor/System

RLA

Compressor/Fan Motor/System

LRA

Compressor/Fan Motor/System

MCC

Capacity (Btu/h) 80A-80RH-80W *

COP 80A-80RH-80W *

Power Input, KW (80A-80RH-80W) *

Current, Amp (80A-80RH-80W) *

Shipping Weight (lbs) ****

Shipping Size (L x W x H)

Models

XLHP™

Capacity (Btu/h) 80A-62RH-80W **

COP 80A-62RH-80W **

Power Input, KW (80A-62RH-80W) *

Current, Amp (80A-62RH-80W) *

Capacity (Btu/h) 50A-63RH-80W ***

COP 50A-63RH-80W ***

Power Input, KW (50A-63RH-80W) *

Current, Amp (50A-63RH-80W) *

Min. Circuit Ampacity (Amp)

208-230/1/60

125,000

5.4

117,000

5.2

82,000

278

43"x34"x51"

6.6

185/4/189

50/NA/NA

6.8

32/2/34

208-230/1/60

32/3/35

185/11/196

50/NA/NA

140,000

5.7

7.2

132,000

5.4

7.1

85,000

6.2

320

43"x34"x46"

TECHNICAL INFORMATION

Electrical Supply - Voltage Requirements

* 80A-80RH-80W: 80° F Air Temp, 80% RH, 80° F Water Inlet Temp. ** 80A-62RH-80W: 80° F Air Temp, 62% RH, 80° F Water Inlet Temp. *** 50A-63RH-80W: 50° F Air Temp, 63% RH, 80° F Water Inlet Temp. **** Add 50 lbs. for Pallet and Packaging. COP = Coefﬁcient of Performance

XLHP™ High Performance Heat Pump Installation and User’s Guide

°F OHMS °F OHMS °F OHMS °F OHMS °F OHMS

0 85,387 51 19,377 66 13,136 81 9,076 96 6,382

10 62,479 52 18,870 67 12,809 82 8,861 97 6,238

20 46,225 53 18,377 68 12,491 83 8,651 98 6,097

30 34,561 54 17,899 69 12,182 84 8,447 99 5,960

40 26,100 55 17,435 70 11,882 85 8,249 100 5,827

41 25,391 56 16,985 71 11,589 86 8,056 101 5,697

42 24,704 57 16,548 72 11,305 87 7,867 102 5,570

24,037

44 23,391 59 15,711 74 10,761 89 7,506 104 5,326

45 22,764 60 15,310 75 10,500 90 7,333 105 5,208

46 22,156 61 14,921 76 10,246 91 7,164 106 5,094

47 21,566 62 14,543 77 9,999 92 6,999 107 4,982

48 20,993 63 14,176 78 9,758 93 6,839 108 4,873

49 20,438 64 13,820 79 9,525 94 6,683 110 4,664

50 19,900 65 13,473 80 9,297 95 6,530 120 3,758

58 16,123

If voltage drops below 208V, this may damage the heat pump and void

the warranty. Take proper steps to ensure correct voltage at the heat

pump during operation.

*Temperature Resistance Chart

73 11,029

88 7,684 103 5,446

Model

Discharge

Pressure (psig)

Suction Pressure

(psig)

Superheat (F) Model

Discharge

Pressure (psig)

Suction Pressure

(psig)

Superheat

(F)

UltraTemp 120 H/C 378 157 10 UltraTemp 120 H/C 336 90 3

UltraTemp 140 H/C 377 170 10 UltraTemp 140 H/C 327 100 3

Model

Discharge

Pressure (psig)

Suction Pressure

(psig)

Superheat (F) Model

Discharge

Pressure (psig)

Suction Pressure

(psig)

Superheat

(F)

UltraTemp 120 H/C 368 146 8 UltraTemp 120 H/C 474 152 4

UltraTemp 140 H/C 369 158 10 UltraTemp 140 H/C 465 165 6

Air: 80F, 80%RH Water: 80F, 45-50gpm

Air: 80F, 63%RH Water: 80F, 45-50gpm

Air: 50F, 63%RH Water: 80F, 45-50gpm

Air: 80F, 63%RH Water: 104F, 45-50gpm

The table below should be used by trained air-conditioning and refrigeration service people. The table below should not be used for adjusting the charge in the system. Use of interpolation or extrapolation of the table data may not be appropriate unless it is closely matched by the ambient and water ﬂow conditions.

RH = Relative Humidity

HEAT PUMP PRESSURE DROP

Pressure Drop (psi)

0102030405060708090 100 110 120

XLHP 120 H/C

and 140 H/C

Water Flow (gpm)

XLHP™ High Performance Heat Pump Installation and User’s Guide

TROUBLESHOOTING

RISK OF ELECTRICAL SHOCK OR ELECTROCUTION.

Improper installation will create an electrical hazard which could result in death or serious injury to equipment operators, installers, or others due to electrical shock, and may also cause damage to property. Do NOT attempt any internal adjustments inside the heater.

1. Keep your hands and hair clear of the fan blades to avoid injury.

2. If you are not familiar with your ﬁltering system and heater: a. Do NOT attempt to adjust or service without consulting your dealer, professional refrigeration or air conditioning contractor. b. Read the entire Installation & User’s Guide before attempting to use, service or adjust the heater or ﬁltering system. The water pressure switch should be adjusted to turn the heater off when the pump is off. Setting the switch to close at too low of a ﬂow can damage the appliance. Adjust the switch to turn the heater off, not on.

Always turn power to the unit OFF before servicing or repair.

Note: Any service must be done by an authorized service agency person.

Problem or Symptoms Possible Cause Corrective Action

HIGH WATER TEMP Alarm:

Water temperature above 108° F.

LOW WATER TEMP Alarm:

Water temperature below 40° F.

LOW WATER FLOW Alarm: The pressure switch sensing water ﬂow is open.

REMOTE TANK1 TANK2 Alarm: TANK1 and TANK2 remote inputs are simultaneously energized.

WATER THERM SHORT Alarm:

Water temperature sensor circuit is shorted.

WATER THERM OPEN Alarm: Water temperature sensor circuit is open.

SUCTION TH SHORT Alarm: Defrost refrigerant temperature sensor circuit is shorted.

SUCTION TH OPEN Alarm: Defrost refrigerant temperature sensor circuit is open.

BROWNOUT Alarm: The 24 VAC supply voltage to the control board is low.

CAUTION: High Voltage Checks. Observe extreme caution or call dealer or factory for advice before attempting to Troubleshoot Electrical Box.

Bad Thermistor or bad control board. Test water temp to see if it is correct, if not, use the 10k ohm

resistance test to verify thermistor. If bad, replace thermistor. If good, replace control board.

Bad Thermistor or bad control board.

Debris is shorting the connections.

1. Water circulation pump not on. Verify water circulation pump is on.

2. Insufﬁcient water ﬂow. Dirty or worn ﬁlters or clogged lint traps. Verify ﬁlter is clean,

3. External bypass open. Make sure external water bypass around heat pump is closed.

4. Bad water pressure switch. With water ﬂowing, check resistance of water pressure switch,

Remote TANK1, TANK2, and common spade terminals on the back of the control board are all energized.

Bad Thermistor or bad control board. Use the 10k ohm resistance test to verify thermistor. If shows

Bad Thermistor, or bad control board. Use the 10k ohm resistance test to verify thermistor. If shows

Bad Thermistor or bad control board. Use the 10k ohm resistance test to verify thermistor. If shows

Bad Thermistor or bad control board. Use the 10k ohm resistance test to verify thermistor. If

1. Bad transformer Supply voltage to the transformer should be between 208 and

2. Insufﬁcient supply voltage to the heat pump.

Test water temp to see if it is correct, if not, use the 10k ohm resistance test to verify thermistor. If bad, replace thermistor. If good, replace control board.

Remove debris or replace PCB.

backwash if necessary to clean entire ﬁlter system or replace ﬁlter element if needed. Inspect & clean pump impeller. Adjust Plumbing valves. Repair suction air leaks.

if open, replace switch.

Modify automation control output so that only either the TANK1 and common or TANK2 and common terminals are energized.

shorted, replace thermistor. If good, replace control board.

open, replace thermistor. If good, replace control board.

shorted, replace thermistor. If good, replace control board.

shows an open, replace thermistor. If good, replace control board.

260 volts. Transformer should output between 24 and 28 volts. If below this range, replace transformer.

Check supply voltage to the heat pump. Supply voltage should be between 208 and 260 volts. Check to see if a phase is out. Should have 120 volts to ground and 240 volts across power legs. A boost transformer may be needed closer to the heat pump to get voltages within proper range.

Refer to 10K Ohm Temperature Resistance Chart on page 20.

XLHP™ High Performance Heat Pump Installation and User’s Guide

Problems or Symptoms Possible Cause Corrective Action

HIGH REFRIG Alarm: Refrigerant high

pressure switch is open.

LOW REFRIG Alarm: Refrigerant low pressure switch is open.

FIVE ALARMS: Indicates 5 faults have occurred in 1 hour. This fault will automatically reset in 1 hour or can be manually reset by pressing the ON/OFF button.

1. Water circulation pump not on. Verify water pump is on.

2. Insufﬁcient water ﬂow.

3. External bypass open.

4. Bad refrigerant high pressure switch. Check resistance of switch, if open, replace switch.

5. TXV Stuck Closed.

6. Other Possibilities:

7. Other Possibilities. Low or restricted water ﬂow through heater. Dirty or worn ﬁlters or clogged lint traps. Clogged ﬁlter pump impeller. Improper plumbing valve settings. Suction leak allowing air into the water ﬂow. Low water ﬂow when switched to TANK2 mode. Unit is plumbed backwards. Heat exchanger clogged with debris. Internal bypass valve damaged or clogged with debris.

8. Unit overcharged.

1. Low refrigerant in system.

2. Air and water temperatures too cold to operate the heat pump.

3. Bad refrigerant low pressure switch.

4. Faulty fan.

5. TXV Stuck Closed.

6. Insufﬁcient airﬂow through air coil

5 alarms of any kind within one hour.

Verify ﬁlter and suction lines are clean, backwash if necessary. Minimum ﬂow 30 GPM.

Verify external water bypass around heat pump is closed. Also make sure all other valves are open or in the proper positions to allow proper water ﬂow through heat pump.

1. Disconnect TXV bulb from suction line (SL), have it in your hand, if pressures go back to normal, then reinstall the bulb on suction line (it may have some debris stuck in the port). For adjustable TXVs open adjustable valve, it may remove the debris and set it back to original position.

2. If (1) does not work, recover the charge, remove bulb from SL, unscrew TXV head, shake it, if rattles, replace head (PN KT-45-ZGA), if not, replace TXV and ﬁlter dryer and charge appropriately.

Check water level. This condition may appear if the heat pump has NOT been operated for an extended period. To Clear this condition, cycle the heat pump on and off up to three times. If this does not correct problem, call for service.

Reclaim charge. Recharge with appropriate nameplate charge.

Find source of refrigerant leak and ﬁx. Pull vacuum and recharge.

Wait until temperatures warm up and see if unit operates.

Check resistance of switch with a full charge, if open, replace switch.

Check the capacitor and fan motor. Replace either one if it is faulty. Check the fan blade and make sure it is not slipping or broken. If so, replace the fan.

2. If (1) does not work, recover the charge, remove bulb from SL, unscrew TXV head, shake it, if rattles, replace head (PN KT-45-ZGA), if not, replace TXV and ﬁlter dryer and charge appropriately.

Remove surrounding debris or shrubs or heat pump maintenance by qualiﬁed personnel.

Press the ON/OFF button to clear the alarm. Check Heat Pump over the next few minutes/hours to see if alarm appears again. This alarm most likely caused the ﬁve alarms in one hour.

XLHP™ High Performance Heat Pump Installation and User’s Guide

Problem or Symptoms Possible Cause Corrective Action

Unable to turn Heat Pump ON. Display is Blank. Unit will NOT start.

Unit power is ON, green light ON, and Set Temperature is above Actual. Unit will NOT start to heat or cool. No Alarms.

Unit power is ON, green light ON, and Set Temperature is above Actual. Unit will NOT start to heat. No Alarms.

Unit power is ON, green light ON, and Set Temperature is above Actual. Unit cycles on and off, i.e. Compressor cuts on brieﬂy and then off after Five minute delay before set point is reached.

Unit is forming ICE or Frost on the outer air coil, usually at the bottom.

Unit power is ON, and Set Temperature is above Actual. Fan is NOT Turning. No Alarms.

Fan is turning, no cool air discharge out of top of heater. Unit ON, and Set Temperature is above Actual, but Unit is not heating. No Alarms.

“Water will not heat to maximum temperature of 104° F. Thermostat is turned all the way up. OR Water is heating very slowly.”

Control failure. No power supply to heater. Tripped breaker or blown fuse. Faulty Transformer. Incorrect Wiring.

Remote feature enabled, but no controlling device hook-up. Control failure.

Heat pump not turned on.

Heat Pump TANK1/TANK2 selection mode incorrect. The thermostat is malfunctioning. Control Board Failure.

Faulty Compressor. Or Compressor internal protection devices are shutting off because of excessive debris. Faulty Compressor contactor. Incorrect wiring. Control Board Failure. Internal bypass valve damaged or clogged with debris. Heat exchanger clogged with debris. Suction leak allowing air into the water ﬂow. Unit is plumbed backwards.

Discharge air ﬂow is restricted. Discharge air is accumulating and being drawn back through the outer air coil. The fan is obstructed, low air ﬂow. Sprinklers spraying on the outer air coil during cooler temperatures. Outer air coil clogged with debris. Plants too close to heater, blocking discharge air ﬂow. Low refrigerant pressure caused by a Refrigerant leak. Possible malfunctioning of the internal low refrigerant pressure switch. Check Alarm Status on Control Board for LOW REFRIG Alarm.

Faulty Fan Relay. Faulty Capacitor. Faulty Fan Motor. Control Board Failure. Incorrect wiring.

Heat Pump is in the ﬁve minute safety delay and Compressor has not started. Faulty Compressor. Faulty Capacitor. Compressor contactor is stuck open. Control Board failure. Incorrect wiring.

Low or restricted water ﬂow through heater. Dirty or worn ﬁlters or clogged lint traps. Clogged ﬁlter pump impeller. Improper plumbing valve settings. Suction leak allowing air into the water ﬂow. Unit is plumbed backwards. Heat exchanger clogged with debris. Internal bypass valve damaged or clogged with debris. Your thermometer is not reading the correct temperature. Air blower is running. Venturi air inlets are open. It is very cold outside. Pump is not running.

Reset breaker. Replace fuse. Call dealer or factory for advice before attempting to replace parts. Replace Transformer. Check wiring.

Check to see if the Remote feature on the Control Board is enabled. Disable if needed. See Section 3 for more information on disabling Remote function. Call dealer or factory for advice before attempting to replace parts. Replace Control Board.

Check to see if heat pump is in correct active TANK1/TANK2 mode by pressing the TANK1/TANK2 button. If active mode is TANK2, but trying to heat/cool TANK1 press TANK1/TANK2 button again to change the active mode to TANK1. If active mode is TANK1, but want TANK2 heat change active mode to TANK2. Call dealer or factory for advice before attempting to replace parts. Replace thermostat. Replace Control Board.

Clean entire ﬁltering system and or replace ﬁlter element. Inspect & clean pump impeller. Adjust all plumbing valves. Repair suction air leaks, grease pump lid O-ring. Replace ﬁlter. Wrong ﬁlter pump pipe size. Call your dealer or factory for advice if corrective action does not solve the problem. Possible Compressor’s internal relief valve or overload protection device is faulty. Call dealer or factory for advice before attempting to replace parts. Replace Compressor.

The outside air temperature too low and Defrost feature is NOT enable. Malfunctioning Defrost Thermistor. Make sure heater is installed with the required placement clearances for air ﬂow and roof clearance. Do NOT install indoors. Make sure that your sprinklers do NOT spray on the heater in any way what so ever. If ice forms on the outer coil, shut the heater off and allow ice to thaw. You may use water at low pressure to thaw ice build up on the outer coil, shut the heater off when doing so. Call your dealer or factory for advice corrective action does not solve the problem.

Call dealer for advice before attempting to replace parts. Replace Fan relay. Replace Capacitor, Replace Fan motor. Replace Control Board.

Call dealer or factory for advice before attempting to replace parts. Replace Capacitor. Replace Control board. Replace Contactor. Replace Compressor.

Clean entire ﬁltering system and or replace ﬁlter element. Inspect & clean pump impeller. Adjust all plumbing valves. Repair suction air leaks, grease pump lid O-ring. Shut off air blower and or Venturi inlets that allow air turbulence in the body of water. Outside air temp. too cold. Set pump timer for longer time. Call your dealer for advice. Call the factory for advice.

XLHP™ High Performance Heat Pump Installation and User’s Guide

Problem or Symptoms Possible Cause Corrective Action

Higher than Normal Head Pressure, lower than normal suction pressure with high superheat and very cold or frosty distributor tubes, may have no Alarm

Lower than Normal Head Pressure, higher than normal suction pressure with cold suction line and compressor and no superheat, may have no Alarm.

Unusually higher than normal current.

Low current with high superheat. Unit undercharged.

Unit runs, but breaker trips continuously. Electrical issue. Contact certiﬁed electrician.

TXV stuck closed. 1. Disconnect TXV bulb from suction line (SL), have it in your

hand, if pressures go back to normal, then reinstall the bulb on suction line (it may have some debris stuck in the port). For adjustable TXVs open adjustable valve, it may remove the debris and set it back to original position. 2. If (1) does not work, recover the charge, remove bulb from SL, unscrew TXV head, shake it, if rattles, replace head, if not, replace TXV and ﬁlter dryer and charge appropriately.

TXV stuck open. 1. Check to see if TXV bulb is ﬁrmly attached to

suction line, if loose, attach ﬁrmly by tightening the clamp over the bulb and suction line.

2. If (1) above does not work, reclaim charge and replace TXV and ﬁlter dryer with nameplate charge.

TXV stuck closed/partially closed, insufﬁcient water ﬂow, system overcharged.

See Possible Cause column for: TXV stuck closed, Insufﬁcient water ﬂow, and Unit overcharged.

Find source of refrigerant leak and ﬁx. Pull vacuum and charge.

XLHP™ High Performance Heat Pump Installation and User’s Guide

*47

5092*

*47509

REPLACEMENT PARTS

Illustrated Parts View

DETAIL B

SEE DETAIL B

XLHP™ High Performance Heat Pump Installation and User’s Guide

XLHP

™

HIGH P

ERFORMANCE HEAT PUMP

Compressor Scroll ZP83

Compression Isolation Kit, Grommet and Spacer (1 Set)

Bezel, Control Board w/ Label Pump Contactor AutoHeat

Wire Harness Terminal Block - Fan, Compressor

Contactor, Heat Pump

Wire Harness, Main

Screw #10 x .75” Pan Head Phillips, Black Head

Screw #10 x 1” Button Head Torx, Black Head

ITEM

PART NO. DESCRIPTION

30 470439 Nut, #10-32 SS corn

473785 Fan Motor w/ Acorn Nut Kit (120 H/C Only)

474323Z

Fan Motor w/ Acorn Nut Kit (140 H/C Only)

473783 Fan Blade (120 H/C Only)

474322 Fan Blade (140 H/C Only)

33 470137 Tie Down Bracket

34 471566 Probe Thermister - Water Temperature

35 473606 Water Pressure Switch Boot

36 473605 Water Pressure Switch

37 473992 Titanium Heat Exchanger

- 474270Z

Heat Pump Coil Repair Kit [Not Shown]

38 473774Z

Water Bypass Manifold w/ 2 Street Elbows

39 R172305 Water Bypass Check Valve

40 473381 Union PVC 2”

41 473656 Switch, Low Pressure

42 473744 Switch, High Pressure

473999

Thermostatic Expansion Valve (120 H/C Only)

474327

Thermostatic Expansion Valve (140 H/C Only)

473772

Titanium Water Coil Tie Down Strap - Long (Qty. 1)

473789

Titanium Water Coil Tie Down Strap - Extra Tall (Qty. 1)

- 473135 Reversing Valve [Not shown]

- 473432

Reversing Solenoid [Not shown]

- 472734 Auto Set Board Bezel LBL Kit [Not Shown]

- 474237 Clip Retension Comp. Pwr. [Not Shown]

- 474270Z Leak Repair Kit [Not Shown]

- 474321 3 IN Receiver [Not Shown]

- 473054Z Coil Guard [Not Shown]

Parts List

ITEM PART NO. DESCRIPTION

1 473665 Probe Thermister Defrost Sensor

2 470284 Nut, J-Clip

3 473285 Nut, 1/4 - 20 S/S Acorn

4 470281 Nut, U-Clip

5 473732 Wire Harness, Compressor (1PH-60Hz)

6 473734Z

7 473295 Fender Washer

8 473736

9 473745 Bolt 5/16 - 18 X 1.75" S/S

10 98219800 Bolt 5/16 - 18 X 1" S/S

11 473139 Drier

12 470441 Fan Guard Fastener Kit

13 071406 Nut, 1/4 - 20 Hex S/S

472734

16 473603

17 473150 Fan Relay

18 473155 Transformer

19 473422

20 473315 Wire Harness Terminal Block - Sensors

21 473731 Capacitor

22 473149

23 473423

24 474194 Panel, Front Right, 36" Black

25 470198

26 474197

27 474196 Panel, Front Left, w/ Decal, 36" Black

28 474193 HP Top, Black

29 473786 Guard, Fan

Auto Heat Control Board, High

XLHP™ High Performance Heat Pump Installation and User’s Guide

SAVE THESE INSTRUCTIONS

*475093*

2395 APOPKA BLVD., APOPKA, FL 32703 • US (877) 347-4788 • INT. (407) 886-3939

WWW.PENTAIRAES.COM

All Pentair trademarks and logos are owned by Pentair or one of its global affiliates. Pentair Aquatic Eco-Systems™ and XLHP™ are trademarks and/ or registered trademarks of Pentair Aquatic Eco-Systems, Inc. and/or its affiliated companies in the United States and/or other countries. Unless expressly noted, names and brands of third parties that may be used in this document are not used to indicate an affiliation or endorsement between the owners of these names and brands and Pentair Aquatic Eco-Systems, Inc. Those names and brands may be the trademarks or registered trademarks of those third parties. Because we are continuously improving our products and services, Pentair reserves the right to change specifications without prior notice. Pentair is an equal opportunity employer.

P/N 475093 REV. A 6/11/14

Pentair XLHP Installation And User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual