Aqua comfort Act-750t4s User manual

OWNER’S MANUAL

Manufacturing High Quality, High Efficiency

Heat Pump Pool Heaters

TABLE OF CONTENTS

SAFETY CONSIDERATIONS 2

INSPECTION 2

GENERAL INFORMATION 2

WATER FLOW & CONNECTIONS 2-3

ELECTRICAL CONNECTIONS 4

WIRING DIAGRAMS 5

ELECTRONIC CONTROL PANEL 6

OPERATING YOUR HEAT PUMP 6

START-UP 7

MAINTENANCE 8

WINTERIZING 9

TROUBLESHOOTING 9

CALLING FOR SERVICE 10

SYSTEM OPERATING SPECS 11

WARRANTY 12

WARRANTY REGISTRATION 13

Service Department

P.O. BOX 669

Sorrento, FL 32776-0669

888-475-7443 Rev.23

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AQUACOMFORT

HEAT PUMP

INSTALLATION,

OPERATION,

MAINTENANCE

& SERVICE

SAFETY CONSIDERATIONS

•Qualified personnel should perform installation, maintenance and service.

•Make sure all field wiring conforms to the heater specifications and all national and local

codes.

•Disconnect all power sources before performing any maintenance or service to the heater.

INSPECTION

Immediately upon receipt, inspect cartons and their contents for damage due to transit.

Damage, if found, should be noted on delivery papers and a claim filed with the carrier. Also,

check unit data plate to make sure you have the proper model, before installing.

GENERAL INFORMATION

The information in this manual was prepared to assist in the proper installation, operation,

maintenance and service of your new heat pump pool heater. Please read the entire manual and

follow all instructions. Improper installation and use can result in damage to the heater,

unsatisfactory operation, and may void the warranty. Retain this manual for quick reference.

INSTALLATION

When selecting a location consider the following:

•Heater must be located outdoors.

•Minimum of 24” of clearance on access / service side of heater.

•Minimum of 18” of clearance on all three air intake sides of heater.

•Minimum of 48” of clearance for air discharge (top of unit).

•The heater should sit on a solid level surface sufficient above grade to prevent water from

entering it, and allowing condensate to drain from base.

•The length of water piping and electric should be kept to a minimum to avoid capacity

loss and decreased efficiency.

WATER FLOW & CONNECTIONS

Water connections are made at the front or rear of the heater. Water in and out is labeled at the

connections. Unions are supplied and are made to accept either 2” or 1 ½” rigid PVC pipe. The

minimum flow rate is 20 GPM and the maximum flow rate is 70 GPM.

NOTE: Unions can be used for quick drainage of your heater and winterizing.

•Heater must be piped downstream from filter in the pool return line.

•When all the plumbing connections are complete, and ample drying time is allowed, run

the filter pump and check the entire system for water leaks.

•Make sure filter is clean and there are no obstructions in the filtering system.

•Proper water flow is essential to the performance of your heat pump.

•The minimum flow rate is 20 GPM.

WATER FLOW CONNECTIONS

ELECTRICAL CONNECTIONS

•Field connections must comply with national and local codes, i.e. CSA C22.1 or

NFPA70. The work must be done by a qualified electrician.

•Heater must be permanently grounded and bonded.

Bonding will drastically reduce the chances of electrolysis, “Electrical Corrosion.”

•Use copper conductors only.

•Disconnect all power sources before performing any work on unit.

•Standard Power Supply: 230Volts – 60Hertz – 1Phase.

•See unit data plate for specific ampacity.

Wiring Main Power Supply

1. Remove the screws from lower left and right side of front cover (service panel).

2. Remove the screws on left side of hinged electrical enclosure.

3. Route weather tight, flexible conduit through opening at base of unit.

4. Connect conduit to bottom of the electrical enclosure using a weather tight fitting. A

1.13” hole is provided near the main contactor to accept a weather tight fitting. Mounting

conduit directly to the electrical enclosure will ensure a moisture tight seal, extending the

life of the heater.

5. Attach grounding conductor to the ground lug provided inside the electrical enclosure

(labeled).

6. Install L1 and L2 input conductors to the line side of the main contactor. (See wiring

diagrams.)

7. Connect bond wire (at least #8 solid copper wire) to bond lug provided on right or left

side of coil header plate to pool pump bonding terminal or other suitable location.

Wiring External Controls and Remotes

NOTE: When connecting remotes and external controls to the main control within the electrical

enclosure, conduit must be used within the enclosure to ensure a definite separation of factory

wiring/circuits and external control wiring. When installed ensure that there is no transmission of

stress to main control wire terminal connections.

1. Route conduit through .875” hole provided in bottom of electrical panel.

2. Route conduit to the circuit board.

3. Connect control wiring to either Pool/Spa or Chiller connection at the bottom right of

control board.

4. SEE: REMOTE CONTROLS THERMOSTATS AND CONTROLS

WIRING DIAGRAM

1. Use copper conductors only

2. Connect field wiring in grounded rain tight conduit, per rating plate.

3. Connect bond wire to pool steel using # 8 solid copper wire or larger.

4. All wiring must conform to National (N.E.C.) and local electrical codes.

INDICATES FACTORY WIRING

- - - - - - - - - - - - INDICATES FIELD WIRING

REMOTE THERMOSTATS AND CONTROLLERS:

If a remote thermostat or any other control system is to be used to turn the heater on and off, a

normally open dry contact can be made at terminals labeled POOL/SPA on the bottom right of

the electronic control board. In the case of a remote thermostat where the temperature will be

regulated externally, set the POOL MODE to the OFF position and the SPA MODE to 104º F

(40º C). The heater will only run when the remote control calls for heating (circuit closed).

To Change Between Pool and Spa set points automatically:

This change can be done automatically as the water flow is either directed to the pool or spa.

The use of an external water pressure switch in the spa piping IS necessary. A two-wire control

circuit must be connected from the water pressure switch to terminals labeled POOL/SPA on the

electronic control board.

ELECTRONIC CONTROL PANEL

will display actual Pool or Spa water temperature for six

seconds and then display mode of operation (HEA, COL, AUt or OFF) for two seconds.

MODE SELECTION

Selecting the desired mode of operation is accomplished by pressing the SELECT KEY.

OFF MODE

Press the SELECT KEY until you reach OFF. Pressing the UP or DOWN key will allow you to

enter either oFF or on mode. When in OFF Mode the display will show actual water temperature

for six seconds and then display OFF for two seconds.

Temperature Setpoint

•Temperature set point maximum for POOL mode is 95°F (35°C).

•Temperature set point maximum for SPA mode is 104°F (40°C).

To change the temperature set point, press the SELECT KEY until you reach either POOL or

SPA. Press either the UP or DOWN key to scroll to your desired temperature set point. Once

your new temperature set point has been reached, release the UP or DOWN key. Your new set

point will be displayed for five seconds, then revert back to the actual pool or spa water

temperature.

Selecting Pool or Spa Mode

Press the SELECT KEY until you reach P_S. Pressing the UP or DOWN key will allow you to

enter either POOL or SPA mode. LED indicator lights will verify the mode selected.

HEAT & COOL MODELS ONLY:

Selecting Heat or Cool or Auto

Press the SELECT KEY until you reach PHC. Pressing the UP or Down key will allow you to

choose P_H for Pool Heat, P_C for Pool Cool or AUt for Auto Mode. NOTE: UNIT WILL ONLY

COOL IN THE POOL MODE.

DIGITAL DISPLAY

Displays actual Pool/Spa

temperature. In select mode

displays other parameters.

SELECT/SERVICE KEY

Used to select mode of

operation and enter service

mode.

POOL LED

indicates pool mode.

ON LED

indicates compressor is on.

SPA LED

indicates spa mode.

INCREASE KEY

DECREASE KEY

START-UP

Before proceeding with this section make certain all plumbing connections are airtight and leak

free. Flow rates should not exceed 70 GPM maximum. Use of an external bypass is necessary at

70 GPM and above. Minimum flow rate is 20 GPM.

•Turn filter pump time clock to the ON position and set filter pump hours. For initial

heating, the pool heater and filter pump may need to run continuously until your desired

temperature is reached. After initial heating is achieved, the heater will run only to

maintain your desired temperature.

•Turn power supply to heater ON.

•The control panel will light up and display either OFF or the actual pool water

temperature.

•Select POL or SPA and set your desired water temperature by scrolling either up or

down.

•If your programmed water temperature is above the actual water temperature, the fan and

compressor will start once the time delay is satisfied.

NOTE: Each time the compressor turns off; it is protected by a 5 minute anti-cycling

delay.

Initial Heating

Initial heating may require you to run your heater and filter pump continuously for at least 24

hours, or more, depending on the following factors:

•Temperature difference between actual water temperature and desired water temperature.

•Size of pool.

•Ambient air temperature, the cooler the air temperature the longer the heating time.

•Heat loss (evaporative, convective, radiative and conductive).

•A pool cover / solar blanket may reduce initial heating time by up to 50 percent.

Reducing Heat Loss - Pool Cover / Solar Blanket

We highly recommend the use of a pool cover / solar blanket. Covering your pool is the single

most cost effective means of reducing heat costs from 50 to 70 percent. Heating a pool without a

cover is like heating a house without a roof. They also reduce the amount of maintenance costs.

By reducing evaporation, covers reduce the quantity of chemicals needed.

Evaporation accounts for about 70 percent of pool heat loss, the beneficial effect of using a

pool cover or solar blanket can be dramatic.

Wind Speed Reduction

Reducing wind velocity at the water surface reduces convective and evaporative losses. Fences,

trees, hills, or tall hedges close to the pool perimeter are effective windbreaks. Locate the

obstructions to take the maximum advantage of their effectiveness as windbreaks, without

shading the pool surface from the sun.

Defrost Cycle

The heat pump pool heater has automatic defrost. When the outdoor temperature drops below 40

°F, frost may start to form on the evaporator coil. Frost buildup will be heaviest on humid days

when the temperature is between 35 and 40°F. During the defrost cycle, the display will show

“DEF” indicating the unit is defrosting. During this time the compressor is inactive.

Internal Protection Analyzers

The heater is equipped with internal devices to monitor and protect the integrity of the unit. If an

abnormal condition occurs, the device will interrupt the operation of the unit and may display the

appropriate code on the control panel.

•LOW WATER FLOW: Indicated by “HP” or “HP3” on the control panel. The heater is

designed to run efficiently above twenty (20) GPM. If there is insufficient water flow,

the unit will shut down, protecting the compressor. The usual causes for these conditions

are a dirty pool water filter, a restriction in the return line (i.e. skimmer), or improper

valve positioning.

•NO WATER FLOW: Indicated by “FLO” on the control panel. When the filter pump is

off, or if the water flow to the heater is interrupted during the heating mode, the internal

water pressure switch will shut down the unit. When normal water flow resumes, the

heater will automatically restart itself.

•Other analyzer codes include: “LP”, “tSO”, “tSS” and “ESO” and “ESS”.

The TROUBLESHOOTING CHECKLIST on page 9 goes into further detail on these analyzer

codes.

MAINTENANCE

WARNING: DISCONNECT ELECTRICAL POWER TO UNIT BEFORE STARTING ANY

MAINTENANCE TO PREVENT SERIOUS INJURY FROM SHOCK.

Protecting your Heater

•Keep your pool filter system clean and free of restrictions to ensure proper water flow.

•Check water chemistry regularly. Misuse of chemicals will cause permanent damage to

your heater and other pool equipment. Manufacturers can void warranties for damage as

a result of poor water quality.

•Free airflow is essential. Keep the evaporator coil clean and free of weeds, leaves, glass

clippings, dirt and other debris that will decrease the airflow. Keep fences and shrubs

away from air inlets (sides and back of heater).

•Frequent rinsing of the evaporator with fresh water will remove build up from its surface.

Always spray the coil gently with a regular garden hose being careful not to bend

aluminum fins.

•Regular cleaning of the cabinet will improve its appearance and extend the life of the

finish.

Winterizing

When the heater is exposed to freezing temperatures, it is essential that all water within the unit

be properly drained. When water freezes, it expands, damaging piping.

•Turn thermostat settings to OFF. Turn filter pump to OFF.

•Turn power to unit OFF (i.e. pull disconnect or turn circuit breaker OFF).

•Disconnect water inlet and outlet unions at the back of the unit. Be careful not to lose

rubber o-rings.

•Flush the heater piping out with fresh water to remove any residual chemicals.

•Use low-pressure air or vacuum to remove water that has accumulated inside the piping

of the heater.

TROUBLESHOOTING CHECKLIST

•Check to see that the electrical power is on. Reset breakers, or replace fuses if necessary.

•Check to be sure the electric control panel is set properly. The desired temperature must

be set above the actual pool or spa temperature for the heater to run.

•Check to make sure the evaporator coil has enough clearance and that there are no

restrictions to its airflow.

•Certain ambient air conditions may cause the heater to go into defrost mode, displayed on

the control panel as “DEF”.

NOTE: IT IS NORMAL FOR WATER TO DRIP FROM THE DRAINHOLES AT THE BASE OF THE

HEATER. THE UNIT PRODUCES CONDENSATION WHEN IT OPERATES.

Analyzer Codes

FAILURE LOCK-OUT: This feature is for the protection of the heater. If the same failure

occurs three (3) times within an hour, the control will not allow the unit to restart, and shall

display the appropriate code (i.e. “LP3”, “HP3”).The reset to normal conditions can be

accomplished by pressing any button on the control touch pad one time.

“FLO” (Little or No Water Flow)

•The pump is not running.

•The filter is dirty or clogged.

•Shortage of water to pump - air leak.

•Undersized pump.

•Valves not in correct position.

•Filter in backwash mode.

•Water pressure switch needs adjustment, or is defective.

“HPS” (Compressor High Pressure)

•Low water flow to heater.

•Defective high-pressure switch.

“LPS” (Compressor Low Pressure)

•Evaporator coil dirty.

•Fan motor not running.

•Low refrigerant pressure.

•Defective low-pressure switch.

•Low ambient air temperature.

“ESO”

•Evaporator temperature sensor connection opened. Check for cut or loose sensor wiring

or defective sensor.

“tSO”

•Water temperature sensor connection opened. Check for cut or loose sensor wiring or

defective sensor.

“ESS”

•Evaporator temperature sensor connection shorted. Check for a short in sensor wiring or

defective sensor.

“tSS”

•Water temperature sensor connection shorted. Check for a short in sensor wiring or

defective sensor.

“DEF”

•Heat pump in defrost cycle.

CALLING FOR SERVICE

•Visit www.aquacomfort.com, click “Service” and complete the Service Request form.

•Please eliminate any water flow problems before calling for service.

•If you are unable to contact the installing agent, please contact AQUACOMFORT

TECHNOLOGIES, LLC. A factory representative will assist you or your serviceman

over the phone.

SERVICE PERFORMED WITHIN THE WARRANTY PERIOD MUST BE APPROVED BY AQUACOMFORT

TECHNOLOGIES, LLC. PRIOR TO SERVICE BEING PERFORMED AND ONLY BY AN AQUACOMFORT

TECHNOLOGIES, LLC. AUTHORIZED TECHNICIAN. SEE WARRANTY FOR DETAILS.

Please have the following ready before calling:

MODEL #:

SERIAL #:

DATE OF INSTALLATION:

NAME OF OWNER:

ADDRESS:

CONTACT #:

NATURE OF PROBLEM:

SYSTEM OPERATING SPECIFICATIONS

50°F air 63% RH 80°F Water

Model

Discharge Pressure

(psi) uction Pressure (psi)

uperheat (°F)

ACT-750T4 335 -345 90 - 95 6 - 10

ACT-1100T5 325 - 335 90 - 95 6 - 10

ACT-1250T6 310 - 320 90 - 100 2 - 5

ACT-1500T7 310 - 320 90 - 100 2 - 5

ACT-1750T7 310 - 320 90 - 100 2 - 5

ACT-

1250HCT6 350 - 360 90 – 100 2 - 5

80°F air 63% RH 80°F Water

Model

Discharge Pressure

(psi) uction Pressure (psi)

uperheat (°F)

ACT-750T4 340 - 350 150 - 160 8 - 12

ACT-1100T5 330 - 340 150 - 160 8 - 12

ACT-1250T6 315 - 325 140 - 150 12 - 16

ACT-1500T7 315 - 325 140 - 150 12 - 16

ACT-1750T7 315 - 325 140 - 150 12 - 16

ACT-

1250HCT6 360 - 370 150 - 160 12 - 16

80°F air 80% RH 80°F Water

Model

Discharge Pressure

(psi) uction Pressure (psi)

uperheat (°F)

ACT-750T4 345 - 355 160 - 170 11 - 15

ACT-1100T5 335 - 345 160 - 170 11 - 15

ACT-1250T6 320 - 330 140 - 150 18 - 22

ACT-1500T7 320 - 330 140 - 150 18 - 22

ACT-1750T7 320 - 330 140 - 150 18 - 22

ACT-

1250HCT6 370 - 380 150 - 160 18 - 22

LIMITED WARRANTY

HEAT PUMP POOL HEATERS

AQUACOMFORT TECHNOLOGIES, LLC. (ACT) warrants only to the original owner, the HEAT

PUMP POOL HEATER to be free of defects in materials and workmanship for a limited ten (10) year

term as follows: One (1) year full parts and labor, years two (2) through ten (10) the compressor and heat

exchanger (part only). This warranty does not include transportation charges for equipment or component

parts to or from the factory. This warranty is valid only in the Continental U.S. The labor for repair or

replacement of defective parts will be provided by ACT subject to the conditions of this limited warranty.

THE EFFECTIVE DATE OF WARRANTY is the date of installation, if properly documented,

otherwise the date of manufacture plus three (3) months.

THIS WARRANTY WILL NOT APPLY TO: A) Malfunction or damage resulting from installation,

operation, maintenance, voltage conditions, or service not in accordance with ACT specifications. B)

Malfunction or damage due to the failure to perform normal maintenance as outlined in the Owner’s

Manual. C) Malfunction or damage due to conditions not intended for original use of the unit. D)

Malfunction or damage due to negligence, abuse, freezing conditions, accident, or acts of God. E)

Malfunction or damage from plants or animals. F) Malfunction or damage from the attachment of

accessories not authorized by ACT. G) Unnecessary service calls due to erroneous operational reports,

maintenance and electrical service. H) Units sold outside the continental United States.

SERVICE PERFORMED WITHIN THE WARRANTY PERIOD must be approved by ACT PRIOR

to service being performed, and must be performed by an authorized technician. The warranty is void if

the unit is repaired by anyone unauthorized by ACT. Reimbursement for replacement parts or repair

services that are not authorized or performed by ACT are not covered under this limited warranty.

WARRANTY PARTS will be replaced or repaired at the discretion of ACT. Shipping of warranty parts

is not included. Defective parts must be returned to ACT within the warranty period for validation. ACT

is not liable for the labor involved in the unauthorized repair, or replacement costs including parts and

labor. This warranty is in lieu of all other warranties, expressed or implied, written or oral. The liability

of ACT shall not exceed the cost of the repair or replacement of defective parts; ACT is not liable for

damages of any sort whatsoever, including incidental and consequential. There are no implied warranties

of fitness for a particular purpose that apply to this product.

Owner________________________________

Address_______________________________

City/St/Zip_____________________________

Installation Date_________________________

Contractor_____________________________

Address_______________________________

City/St/Zip_____________________________

In-Ground Model #______________________

Serial #________________________________

KEEP FOR YOUR RECORDS

DO NOT MAIL CERTIFICATE

AQUACOMFORT TECHNOLOGIES, LLC.

Service Department

P.O. BOX 669

Sorrento, FL 32776-0669

WARRANTY REGISTRATION

The Warranty Registration Form must be filled out in full and mailed to AQUACOMFORT

TECHNOLOGIES, LLC. within sixty days from the date of installation. Do not mail Warranty

Certificate.

MAIL TO:

AQUACOMFORT TECHNOLOGIES, LLC

Service Department

P.O. BOX 669

Sorrento, FL 32776-0669

WARRANTY REGISTRATION

HEAT PUMP POOL HEATER

Name of Owner _________________________________________Phone __________________

Address ______________________________________________________________________

City, State _______________________________________________ Zip + 4 _______________

Installation Date _________________Dealer _________________________________________

In-Ground Model # ____________________________ (Location: Label on Front Panel of Unit)

Serial # ______________________________ (Location – Label on Front Left Top of Unit)

Pool Surface Area __________ ft x __________ ft

Is Pool Covered? Yes No (Circle One)

Is Pool Screened In? Yes No (Circle One)

Is an In-Line Chlorinator Used? Yes No (Circle One)

Questions / Comments

Signature ___________________________________________ Date ____________________

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Aqua Comfort ACT-750T4S User manual