EvoHeat Force-i Series Inverter Pool & Spa Heat Pump

1. Introduction

This manual provides essential information for the installation, troubleshooting, operation, and maintenance of your EvoHeat unit. Adhering to these instructions is crucial; failure to do so may invalidate the warranty. For questions or technical support, contact EvoHeat on 1300 859 933.

The Evo Force-i series offers superior performance, reduced noise levels, and advanced features, making it a highly energy-efficient and environmentally friendly solution for year-round pool and spa heating. It utilizes the latest stepless full DC inverter compressors, fans, and control systems for optimized heating and cooling with minimal operating costs.

Technical Data

*Heating: 27°C Air / Water 26°C / Humid 80%

Data is based on the Evo heat pump only and does not include auxiliary devices. Specifications are correct at printing and may change without notice. Consult an EvoHeat Specialist for the most current product specifications.

2. Dimensions

Diagrams illustrate the external dimensions (Length, Width, Height) of the Force-i models, labeled A, B, and C respectively, with additional reference points D, E, F, G, H, I for specific models.

3. Quick Start Guide

Important Things to Note

• Ensure minimum clearances and recommended installation locations are met as per the manual.
• All heat pump accessories are in a plastic bag inside the packaging.

Pre-Installation

1. Position the heater on a level pad at the pool water return line.
2. Install supplied antivibration rubber pads under the unit's feet.
3. Install the supplied condensation barb to the underside and direct condensation to a drainage point.

Plumbing Installation

Evo heat pumps use 40mm NB PVC pipe for connections.

1. Attach supplied barrel unions to the cold inlet and hot outlet (hand tighten).
2. Use plumbing tape and ensure the 'O' ring is in position when sealing.
3. Install a 3-way valve at the cold-water inlet and create a bypass using a "T" piece to the heated line.
4. Make plumbing connections and brace pipework as needed.

Diagram shows the plumbing connections for the heat pump, illustrating the flow from the pool suction, through the filter and water pump, to the heat pump's inlet, with a bypass line via a 3-way valve and T-piece, leading to the pool return.

Water Pump Connection

Three connection options are available for heat pump/water pump activation:

• Remote on/off: For external pool automation (signal input).
• Water Pump: 230V connection for a dedicated water pump.
• Dry Contact: For chlorinators with dry contact capabilities (signal output).

4. Safety Instructions

⚠️ Installation, repair, or relocation must be performed by a qualified technician. Incorrect work can lead to fire, electric shock, water leakage, and injury.

• A circuit breaker must be installed for the unit.
• Ensure a good power connection and earthing to prevent electrical shocks.
• Use only recommended methods for defrosting or cleaning.
• Store the unit away from ignition sources (e.g., open flames, gas appliances).
• Do not pierce or burn the unit.
• If the supply cord is damaged, it must be replaced by a qualified service agent.
• Installation must comply with national wiring regulations.
• Disconnect all supply circuits before accessing terminals.

The unit has an overload protection system and will not start for at least 3 minutes after a stoppage. Be aware that refrigerants may be odorless.

WARNING: THIS PRODUCT CONTAINS A BUTTON BATTERY. If swallowed, it can cause severe or fatal injuries within 2 hours. Keep batteries out of reach of children. Seek immediate medical attention if swallowed or placed inside the body.

Installation Requirements

• Install, operate, and store the unit in a room with a floor area larger than 30m².
• Pipework installation should be kept to a minimum of 30m².
• Spaces with refrigerant pipes must comply with national gas regulations.
• Use supply wires suitable for 75°C.

Transport Requirements

• Comply with transport and local regulations for equipment containing flammable refrigerants.
• Store equipment safely as per manual instructions.
• Abide by packaging signage.
• Protect the unit from damage and potential refrigerant leaks.

*Caution: Single wall heat exchanger, not suitable for potable water connection.

5. Installation

5.1 System Installation

Upon receiving the unit, check packaging for damage and report any rough handling to EvoHeat. Verify the refrigerant gauge on the front panel shows approximately 10-20 on the red band; lower readings may indicate a leak, requiring immediate contact with your EvoHeat Dealer.

Only the main unit and water unit are supplied; other items are spare parts for the water system provided by the installer.

Initial Start-Up Procedure:

1. Open valve and charge water.
2. Ensure the pump and water-in pipe are filled with water.
3. Close the valve and start the unit.

The schematic diagram is for reference only. Check water inlet/outlet labels on the heat pump during plumbing.

IMPORTANT: EvoHeat heat pumps MUST be connected by a licensed electrician. Installation by an unlicensed person voids the warranty and compromises safety and efficiency.

Before installation, verify these 5 variables:

• Heater Condition
• Location
• Clearances & Air Flow
• Adequate water flow & plumbing
• Correct electrical connection & supply

5.2 Location of Installation

EvoHeat recommends installing the heat pump in an outdoor location with adequate ventilation. Indoor installation or installation in poorly ventilated enclosed spaces will result in poor performance and potential damage.

The unit should be installed:

• At least 2m away from the water's edge.
• No greater than 7.5m from the water's edge (to minimize heat loss).
• No greater than 5m below the pool/spa water level.

Avoid locations where roof runoff can enter the unit. Water deflectors may be needed for sloped roofs. Ensure the unit is not near harsh or corrosive chemicals. Install on a flat, level surface. For unavailable suitable outdoor locations, contact EvoHeat for advice.

5.3 Airflow Clearances

Diagram indicates recommended installation clearances for optimal airflow: 600mm minimum gap on the sides and 500mm overhead clearance.

Ensure sufficient space for unobstructed airflow. Avoid enclosed areas where discharged cold air can recirculate, reducing efficiency and potentially causing icing. If clearances cannot be met, contact EvoHeat Tech Support.

5.4 Adequate Water Flow

The unit has a factory-set internal water flow switch; insufficient flow will prevent operation. Maintaining adequate water flow is vital for efficiency and to prevent unit damage. Optimal flow rates are listed in the manual. Piping must be flushed to remove debris before connecting the heater, as debris can damage the flow switch. Turn off the heater when cleaning the pool to prevent low water flow faults (E03) or high pressure faults (E01).

A variable speed pump or bypass valve is required to adjust water flow. Do not connect a pump with higher flow than required.

5.5 Rubber Feet

Install the provided rubber feet to reduce vibration and create space for drainage barbs.

5.6 Condensate Drain Barb

Fit the condensate drain barb into the two holes under the unit to direct water away. Soften the barb in hot water if stiff.

5.7 Drainage & Condensation

ℹ️

During operation, water condenses on the evaporator fins. This is normal and may appear as a leak, especially in high humidity. The unit may activate reverse cycle or de-icing mode at temperatures below 8°C, increasing condensate discharge. Condensate drains from the unit's base; a pipe can be connected for directed drainage.

To verify condensation: shut off the unit while the pool pump runs. If water stops, it's condensation. Alternatively, test drain water for chlorine; absence of chlorine indicates condensation.

5.8 Plumbing

The unit's titanium heat exchanger requires no special plumbing arrangements beyond a bypass for flow rate adjustment. Water pressure drop is less than 10kPa at max. PVC pipe can be run directly into the unit. Standard models use 40mm PVC fittings; 50NB to 40NB adapters can be used. Consider quick coupler fittings for easier draining and servicing. Ensure pipework is supported to prevent O-ring damage.

Location: Connect the unit in the pool pump return line, downstream of filters/pumps and upstream of chemical treatment systems.

5.9 Water Pump Connection

Three connection options for heat pump/water pump activation:

• Remote on/off: For external pool automation (signal input).
• Water Pump: 230V connection for a dedicated water pump.
• Dry Contact: For chlorinators with dry contact capabilities (signal output).

5.11 Electrical Connection

⚠️ Always use a qualified electrician. Ensure all cabling, circuit breakers, and protections comply with electrical wiring legislation. Verify adequate voltage and current are available.

Voltage range: 220-240V for single phase, 380-415V for 3 phase. Incorrect voltages will damage the unit and void the warranty.

1. Ensure power is disconnected during installation/service.
2. Comply with national and local electrical codes.
3. Use electrical cable sized appropriately for the unit's requirements.
4. The heater must have a circuit breaker and isolation device.
5. Install the circuit breaker between the heater and water pump if the pump is hard-wired.
6. Ensure the unit is well-earthed. Access electrical terminals by removing the front panel. The wiring diagram is inside the front panel or at the back of the manual.

For 3-phase heaters, correct phase rotation is crucial. Two lights (orange and green) on the 3-phase relay monitor indicate correct wiring; one light indicates a need for phase rotation adjustment. The 3-phase monitor relay is located above the compressor in an electrical box and should only be accessed by certified tradespeople.

5.12 Initial Start-Up

Refer to the Quick Start Guide for initial start-up and commissioning instructions.

6. Operation

6.1 The Controller

The controller interface displays current time, date, day, and ambient/water temperature. Key functions are accessed via buttons labeled ON/OFF, PARAMETER, CLOCK, FAULT DISPLAY, SILENT SETTING, MODE, TEMP. CURVE, WATER INLET TEMP., and LOCK.

• ON/OFF: Starts or shuts down the unit.
• PARAMETER: Views unit state and parameters.
• CLOCK: Sets clock or timer; turns green when timer is active.
• FAULT DISPLAY: Views fault history.
• SILENT SETTING: Activates silent mode and sets low-speed fan timing.
• MODE: Enters mode settings and target temperature interface.
• TEMP. CURVE: Views temperature and power curves.
• WATER INLET TEMP.: Enters mode settings and target temperature interface.
• LOCK: Locks or unlocks the screen (default password: 022).

6.2 Operating Functions

EvoHeat offers YouTube video tutorials for controller functions. Visit youtube.com/@evoheatpumps.

6.2.1 Startup & Shutdown

Press the ON/OFF button to turn the unit on or off.

6.2.2 Setting the Mode & Target Temperature

From the main interface, press the MODE or WATER INLET TEMP. button to access the menu. Choose from Refrigeration (1), Automatic (2), or Heating (3) modes. Note: Some units may have a single mode setting that cannot be switched.

Pressing the temperature display allows adjustment of the target temperature.

6.2.3 Clock Settings

Press the CLOCK button to access the clock menu for changing system date/time or setting timers.

6.2.3.1 Setting the Date & Time

Click on the value to change it directly. Press confirm to save. Ensure correct input format (e.g., 23-11-16 13:00:00).

6.2.4.2 Setting Timers

Use the timer settings to schedule unit operation. Set start and end times within the 0:00 – 23:00 range.

6.2.4 Silent & Silent Timers

Silent mode reduces compressor speed, lowering heating capacity. The controller icon changes to show 3 fans when silent mode is active.

6.2.4.1 Silent Setting

Press the SILENT TIMING button from the main menu. Press the left-hand fan symbol to enable silent mode. Press again to exit.

6.2.4.2 Silent Timer

Press the alarm clock button to access the Silent Timer menu. Set start and end times for silent operation.

6.2.5 Fault History

The Fault Display button shows recorded faults. Faults appear in reverse chronological order. Press 'Clean' to delete all records. The button appears dimmed if no faults exist, red if faults are present but unchecked, and dim again after checking.

6.2.7 Colour Display Calibration

Tap repeatedly on a blank menu area until a long beep is heard. Press '+' to start calibration; another beep confirms completion.

6.2.8 Temperature Curve

The TEMP CURVE button displays temperature and average power curves, showing usage over 24 hours. Data is stored for 60 days; operation less than 1 hour may not be saved.

6.2.9 Unlocking & Locking the Controller

Access the main menu, select the lock symbol, and enter password '022' to lock or unlock the controller.

7. Troubleshooting

7.1 Electronic Control Fault Table

7.2 Frequency Conversion Board Fault Table

8. Appendix

8.1 Wiring Diagrams

Detailed wiring diagrams are provided for various Force-i models (Force-i 9/12, 17/19, 24, 28-3), illustrating the electrical connections between the controller, compressor, fan motors, sensors, power supply, and other components. Key components and their terminal connections are labeled for each model.

8.2 Parameter List

8.3 Refrigerant Saturation Temperature

8.4 Cable Specifications

9. Maintenance

9.1 F.A.Q

Should I check my unit regularly?

An annual maintenance check is recommended to prevent issues and damage to your heat pump.

Annual Maintenance

Minor maintenance should be performed every 12 months by the occupant or an EvoHeat Authorised contractor. This includes:

• Inspecting unit operation: checking set temperature, visible water leaks (excluding condensation), and temperature difference between inlet/outlet.
• Isolating unit power and removing debris from around the evaporator and unit to prevent airflow restriction (brush evaporator coil downwards with a soft brush).
• Visually inspecting plumbing and electrical connections.
• Checking the condensate drain line for blockages.
• Performing a general external clean with a damp cloth.

Do I need to get my unit serviced?

It is recommended to have your EvoHeat unit serviced every two years by a certified technician. More frequent maintenance may be needed in coastal areas. Service includes checking operational pressures and cleaning the unit and fins.

Two Year Service

This service should be carried out by EvoHeat Authorised personnel to maintain efficiency and ensure long-term performance. Contact EvoHeat Service on 1300 859 933 for your nearest Accredited Service Agent.

Only genuine replacement parts should be used. Service includes:

• All items from Annual Maintenance.
• Removal of unit covers to inspect parts and internal leaks.
• Checking/tightening heat exchanger nut and olive.
• Checking fan operation.
• Checking compressor current draw.
• Checking electrical resistance and components (carbon buildup, loose wiring).
• Washing out the evaporator coil.
• Vacuuming the drain to ensure no blockages.

9.2 Advanced

Check the Area

Before working on systems with flammable refrigerants, conduct safety checks to minimize ignition risks. Follow these precautions:

• Presence of Fire Extinguisher: Have appropriate fire extinguishing equipment (e.g., dry powder or CO2) readily available for hot work.
• Checking for Presence of Refrigerant: Use an appropriate refrigerant detector to check for potentially flammable atmospheres during work. Ensure detection equipment is non-sparking, sealed, or intrinsically safe.
• Cabling: Check cabling for wear, corrosion, pressure, vibration, sharp edges, or adverse environmental effects.
• Repair to Intrinsically Safe Components: Do not apply inductive/capacitance loads without ensuring they meet equipment specifications. Work on intrinsically safe components is permitted live in flammable atmospheres only with correctly rated test apparatus. Use manufacturer-specified parts.
• No Ignition Sources: Keep all possible ignition sources (including smoking) far from the installation/repair area. Survey the area for flammable hazards before work. Display 'No Smoking' signs.

General Work Area

Instruct all staff on the work being performed. Avoid confined spaces and section off the workspace. Ensure the area is made safe by controlling flammable materials.

Work Procedures

Undertake work under controlled procedures to minimize risks of flammable gas or vapor presence.

Ventilated Area

Ensure the area is open or adequately ventilated before and during work involving refrigerant. Ventilation should disperse released refrigerant externally.

Detection of Flammable Refrigerants

Never use potential ignition sources for leak detection. Halide torches or naked flame detectors are prohibited.

Labelling

Label equipment stating it has been decommissioned and emptied of refrigerant, including date and signature. Ensure labels indicate the presence of flammable refrigerant.

Charging Procedures

Follow these requirements for charging:

• Prevent refrigerant contamination. Use short hoses.
• Keep cylinders upright.
• Earth the refrigeration system before charging.
• Label the system upon completion.
• Do not overfill cylinders.
• Pressure test with OFN before recharging and leak test upon completion.

Checks to Refrigeration Equipment

Ensure charge size matches room size, ventilation is adequate, and markings are legible. Protect components from corrosive substances.

Checks to Electrical Devices

Perform initial safety checks and component inspections. Do not connect electrical supply if a fault compromises safety. Temporary solutions must be reported. Ensure capacitors are discharged safely, no live components are exposed, and earth bonding continuity is present.

Repairs to Sealed Components

Disconnect electrical supplies before opening sealed components. Use leak detection if electrical supply is needed during servicing. Ensure casing is not altered in a way that affects protection levels. Mount apparatus securely. Ensure seals are intact and replacement parts meet manufacturer specifications.

Silicon sealant may affect leak detection equipment effectiveness. Intrinsically safe components do not require isolation.

Leak Detection Methods

Use electronic leak detectors, calibrated in a refrigerant-free area, suitable for the refrigerant. Leak detection fluids are acceptable, but avoid chlorine-based detergents. If a leak is suspected, extinguish all naked flames. For brazing, recover or isolate refrigerant and purge with oxygen-free nitrogen (OFN).

Removal and Evacuation

Follow conventional procedures for breaking into refrigerant circuits, prioritizing safety due to flammability. This includes removing refrigerant, purging with inert gas, evacuating, and purging again.

Recovery

Recover refrigerant into correct cylinders and flush the system with OFN. Ensure recovery equipment is in good working order, calibrated, and hoses are leak-free. Return recovered refrigerant to the supplier with a Waste Transfer Note. Do not mix refrigerants. Evacuate compressors and oils before removal.

Decommissioning

Before decommissioning, familiarize yourself with the equipment, isolate electrically, and ensure mechanical handling equipment, PPE, and competent supervision are available. Pump down the system, use a manifold if vacuum is not possible, weigh cylinders, operate recovery machine per instructions, do not overfill cylinders, and ensure cylinders and equipment are removed promptly. Recovered refrigerant must be cleaned and checked before reuse.

10. Warranty

Register Your Warranty

EvoHeat recommends registering your warranty online for efficient processing. Scan the QR code or visit evoheat.com.au/warranty-registration/ to fill out the form.

Warranty terms begin from the date of purchase.

Warranty Exclusions

This warranty excludes defects or injuries caused by misuse, abuse, neglect, accidental damage, improper voltage, vermin infestation, incompetent installation, faults not attributable to manufacture, or modifications affecting performance.

Owner Responsibilities

Warranty is conditional on correct operation and regular maintenance. The owner is responsible for:

• Operating and maintaining the heat pump per instructions.
• Performing regular cleaning, including annual maintenance.
• Keeping air inlet/outlet free from obstructions (dirt, leaves, plants).
• Ensuring the condensate drain is clean and unobstructed.
• Ensuring plumbing and electrical connections are secure. Check plumbing regularly for chlorinated water leaks.
• Applying corrosion protection if installed in a corrosive environment.

What is Not Covered

The warranty does not cover:

• Natural Disasters (hail, flood, fire, lightning, etc.).
• Damage from animals or creatures.
• Rust or cabinet damage due to corrosive environments.
• Service by unauthorized persons or unqualified installers.
• Improper or incorrect installation.
• Failure of other connected equipment (e.g., power supply, water pump).
• Improper maintenance or misuse.
• 'No Fault Found' service calls explained in operation instructions.
• Costs associated with delivery, handling, freighting, or transit damage.
• Unit relocation from its original location.

If Warranty Service is Required

Contact Evo Industries Australia on 1300 859 933 or via the website. Provide a copy of your receipt and complete the online Service Request Form.

Onsite technical service is available within normal operating areas of Evo Authorised Service Agents; travel fees may apply outside these areas.