Aquacal 155, 120 owner manual Troubleshooting Using Displayed Codes, Interpreting Error Codes

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Controls Configuration & Adjustments...

Troubleshooting Using Displayed Codes

Interpreting Error Codes

The HP7R heat pump microprocessor controller is designed to be self-diagnostic through the display of various fault codes.

Owners & Operators: If you believe you are experiencing a problem with the heater, and feel a need to call the factory for assistance, it will be beneficial to let the factory Service Representative know which code is being displayed. Having this information at hand will permit the Service Representative to work through–with you–any site related issues causing or contributing to the problem. Then, if after working through site-related issues the heater is still not functioning correctly, the Service Representative will offer to set up a service visit. As necessary, please Contact AquaCal Customer Support Group (800- 786-7751).

Dealers and Service Centers: For troubleshooting use, listed below are all possible fault messages output by the microprocessor, what the codes mean, and possible causes with solutions for the indicated problem. Please contact AquaCal Technical Support Group, as necessary (800-786-7751).

WARNING !

Failure to heed the following may result in permanent injury or death.

Heat pumps contain no owner or operator repairable components. Repairs must not be attempted by untrained and/or unqualified individuals. If service is deemed necessary, contact installing dealer or AquaCal Customer Support at (800) 786-7751.

Message

Error Description

Possible cause

 

 

 

[dPO]

Defrost Sensor Open

Cut or loose sensor wiring

 

 

 

[PO]

Water Temperature

Cut or loose sensor wiring

Sensor Open

 

 

 

 

 

[dPC]

Defrost Sensor Shorted

Short circuit in defrost sensor wiring or defective sensor.

 

 

 

[PC]

Water Temperature

Short circuit in water temperature sensor or defective sensor.

Sensor Shorted

 

 

 

 

 

[LP]

Refrigerant System Low

System refrigerant charge low, defective low pressure switch, clogged

Pressure Switch Open

evaporator coil, or defective wiring.

 

 

 

 

[HP]

Refrigerant System High

Low water flow, defective high pressure switch, or defective wiring.

Pressure Switch Open

 

 

 

 

 

[HP5]

5 High Pressure Faults

See causes for [HP]

Within One Hour (Unit

 

Locked)

 

 

 

 

[LP5]

5 Low Pressure Faults

See causes for [LP]

Within One Hour (Unit

 

Locked)

 

 

 

 

 

Over Temperature Alarm<

Defective compressor contactor, defective controller, or defective water

[OTA]

Temperature over 110oF

 

(Unit Locked)

temperature sensor

 

 

 

 

 

[FLO]

Low or No Water Flow

Circulating pump off or filter dirty, isolation valves set improperly,

Detected

defective or improperly set heater water pressure switch

 

 

 

 

[FS]

Heater in Defrost Mode

Normal function in lower air temperatures. Fan continues to run and

compressor is off. Compressor will restart when air-coil temperature

 

(HEAT-ONLY UNITS)

reaches 38oF or above.

[CSE]

Control System Error

Controller may need to be reset. Disconnect then reconnect power to

controller. If error continues replace control board, display board, or both.

 

 

 

 

 

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Contents Installation Guide Page Table of Contents Maintenance and General Operation Eam Important Features of Your New Heat Pump HOW a Heat Pump Works Heat Pump Does Not Make Heat…Safety Information Safety SignalsWater Temperature Safety Water Chemistry SafetyVerify Electrical Power is Present at Heater HEATING- Quick Start & StopHEATING-QUICK Start & Stop To Begin HeatingProgram Filter Pump Run Time Continuous Usage and Water Around HeaterHeater Controls Control Panel LayoutHeater Controls Operational & Programming CodesStart Up & Setting Operating Controls Applying Power to The ControllerMode Controls Explained, and Starting the Heat Pump Owner-Level Programming Instructions CompleteStart Up & Setting Operating Controls Selecting Pool/Spa Thermostat SettingsChanging The Pool Temperature Set Point Changing The Spa Temperature Set PointUser Lock Code Option ULC Selecting Call-Flex Pump Options CFO General Maintenance Maintenance Operational RecommendationsSafety During Cleaning Operations Maintain Proper Water Flow Maintenance & OperationControl Water Chemistry Control Irrigation and Storm Run Off Maintain Proper Clearances Around HeaterMaintenance & Operation Heating Tips Heating in Cooler WeatherPool/Spa Blankets Pool and Spa Combination HeatingCalculating Initial Heating Time At Start Up Continuous Circulator Pump Operation RequiredMaintenance & Operation Seasonal Use & Shut Down During the Swim SeasonFreeze Protection & Extended Shut Down Winterizing for Hard Freeze ConditionsWinterizing Procedure Planned Maintenance Program 20-Point Planned Maintenance Service Includes the FollowingTroubleshooting Heat Pump Fails to OperateHeat Pump Running... but is it Heating? Water Coming from the Heat PumpTroubleshooting Flowchart Heat Pump Fails to OperateProblem Solved Heat Pump Running... but is it Heating?Testing Water Coming from Heat PumpPage Specific Dealerinformation Follows DEALER-SPECIFIC Table of Contents Level-2 dealer-service Programming Data Plate Nomenclature Physical Characteristics Specifications100 & 120 Models Performance/Size/Weight Water/Electrical Requirements Heating Only Models120AHDE 120BHDE 120DHDT 120HHDT 155AHDE 155BHDE 155DHDT 155GHDE Installation Placement of HeaterIndoor Installation Outdoor InstallationEquipment Mounting Pad Requirements Irrigation, Rainwater Runoff, and Landscape FeaturesAnchoring Heater to Pad Plumbing Requirements Installation Plumbing RequirementsPlumbing Schematics-Flow 20 to 70-GPM Water in & OUT Connections- TypicalConnecting External Controllers Electrical RequirementsGeneral Requirements Code-Specific RequirementsWord Concerning Ground-Fault Protection Electrical RequirementsControls Configuration & Adjustments Entering Service MenuControls Configuration & Adjustments Time Delay dELConfiguring for External Controllers JAO or FS2 Water Sensor Calibration tSCDefrost Sensor Calibration dSC Checking-Adjusting Water Sensor CalibrationSpa Dead Band Differential dBS Defrost Sensor CalibrationPool Dead Band Differential dBP Changing the Service Lock Code and Back Door Entry Pool Dead Band DifferentialService Adjustable Parameters Level -1 and Level-2 Default SettingsTroubleshooting Using Displayed Codes Interpreting Error CodesVerifying the Mode Jumper Position is Correct Mode Jumper ExplainedRepositioning the Mode Jumper Controls Configuration & Adjustments Defrost Systems- Described Water Flow Pressure Switch Adjustment Locate Water Pressure Switch and Identify TypeTo Adjust a Len Gordon Switch To Adjust a TecMark SwitchLen Gordon Style Switch WPS Location TecMark Style Switch To Complete the Adjustment Procedure- Either Brand SwitchContacting the Factory Page 2737 24th St. North St. Petersburg, FL Heat Pump OWNER’S Instructions Getting Familiar with Controls Digital CONTROLLER- Operational Displays Getting Your Heat Pump Started & Stopped Continuous Usage and Water around Unit

120, 155 specifications

Aquacal 155,120 is a highly regarded pool heater known for its efficiency, reliability, and advanced technology. This product stands out in the competitive market of swimming pool heating solutions, making it a popular choice among pool owners and professionals alike.

One of the main features of the Aquacal 155,120 is its high-performance heat exchanger, made from durable titanium. This material ensures resistance to corrosion and enhances the longevity of the heater. The titanium heat exchanger is designed to facilitate maximum heat transfer, providing rapid warming of pool water and ensuring a consistent swimming experience.

The units are equipped with a powerful compressor that utilizes advanced inverter technology. This technology enables the heater to adjust its output according to the pool’s needs, optimizing energy consumption and reducing operational costs. The inverter-driven compressor allows the Aquacal 155,120 to operate quietly, making it ideal for residential settings where noise could be a concern.

Aquacal has designed the unit to be user-friendly, featuring an intuitive digital control panel. This control panel allows users to easily monitor and adjust the temperature settings, ensuring that the water temperature can be maintained at a comfortable level. Additionally, this feature includes programmable settings to enable automatic heating schedules, providing convenience and energy savings for pool owners.

The Aquacal 155,120 is also known for its energy efficiency. With a high coefficient of performance (COP), this heater can deliver more heat output per unit of energy consumed compared to traditional heating systems. This efficiency contributes to a lower carbon footprint, making it an environmentally friendly choice for heating pool water.

Furthermore, the unit is designed with robust insulation, which minimizes heat loss and maximizes energy retention. This insulation helps maintain the desired water temperature for longer periods, reducing the need for frequent reheating and thereby lowering energy expenses.

In summary, the Aquacal 155,120 is an outstanding choice for pool owners looking for an efficient, reliable, and technologically advanced heating solution. With its titanium heat exchanger, inverter technology, user-friendly control panel, energy efficiency, and excellent insulation, this pool heater stands out as a top contender for modern pool heating needs. Whether for leisure activities or extended swimming seasons, the Aquacal 155,120 ensures a comfortable and enjoyable swimming experience.