EvoHeat EDGE-i Inverter Pool & Spa Heat Pump

1. Introduction

This manual provides information on the installation, troubleshooting, operation, and maintenance of the EvoHeat unit. Following these instructions is crucial; failure to comply may invalidate the warranty. For questions or technical support, contact EvoHeat at 1300 859 933.

The Evo Edge-i is EvoHeat's latest innovation in domestic pool and spa heating and cooling. Its unique rear intake and side discharge design allows for versatile installation. Featuring stepless full DC inverter compressors, fans, and control systems, it offers optimized year-round heating and cooling with low operating costs.

PERFORMANCE DATA

TECHNICAL DATA

The data above is based on the Evo heat pump only and does not include auxiliary devices. Product specification information provided is correct at the date of printing and may change without notice. Please consult an EvoHeat Specialist for the most current specifications.

2. Dimensions

Detailed dimensions for the Evo Edge-i heat pump models are provided in tables and diagrams.

Edge-i 7, Edge-i 9 & Edge-i 13

Schematic diagrams showing the physical dimensions of the Edge-i 7, 9, and 13 heat pump models, with labels indicating specific measurements for length, width, height, and other key points.

Edge-i 17

Schematic diagrams showing the physical dimensions of the Edge-i 17 heat pump model, with labels indicating specific measurements for length, width, height, and other key points.

Edge-i 20

Schematic diagrams showing the physical dimensions of the Edge-i 20 heat pump model, with labels indicating specific measurements for length, width, height, and other key points.

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 in the desired location on the pool water return line.
2. Install the supplied antivibration rubber pads under the unit's feet.
3. Install the supplied condensation barb to the underside of the unit and direct condensation to a drainage point.

AIRFLOW CLEARANCES

Ensure the heater is installed in a well-ventilated area with ample fresh air. Maintain a minimum gap of 1500mm on the sides and 500mm overhead clearance. A minimum gap of 50mm is required at the rear.

Diagram illustrating recommended airflow clearances around the heat pump, showing minimum side clearances of 1500mm, a minimum overhead clearance of 500mm, and a minimum rear clearance of 50mm.

PLUMBING INSTALLATION

NOTE: Evo heat pumps accept 32mm or 50mm NB PVC pipe for pool/spa filtration plumbing.

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 necessary.

WATER PUMP CONNECTION

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

1. Remote On/Off: For connection to external pool automation (signal input).
2. Water Pump: 230V connection point for a dedicated water pump.
3. Dry Contact: Connection for chlorinators with dry contact capabilities (signal output).

4. Safety Instructions

Installation, repair, or relocation must only be performed by a qualified technician. Incorrect procedures can lead to hazards including 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.
• Do not use unapproved methods to accelerate defrosting or cleaning.
• Store the unit in a room without continuously operating ignition sources (e.g., open flames, operating gas appliances).
• Do not pierce or burn the unit.
• If the supply cord is damaged, it must be replaced by a qualified service agent.
• Install the appliance according to national wiring regulations.
• Disconnect all supply circuits before accessing terminals.

The unit has an over-load protection system and will not start for at least 3 minutes after a stoppage. Be aware that refrigerants may not have an odour.

An all-pole disconnection device with at least 3mm clearances, a residual current device (RCD) rated not exceeding 30mA, and disconnection incorporated in the fixed wiring are required.

Installation Requirements:

• Install, operate, and store the unit in a room larger than 30m².
• Keep pipe-work installation 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 inform EvoHeat immediately of any rough handling. Verify the refrigerant gauge on the front panel shows approximately 10-20 on the red band; contact your EvoHeat Dealer if it's lower, indicating a potential leak.

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

Initial Start-Up Sequence:

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.

Schematic diagram 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. Unauthorized installation or repair will void the warranty. Correct installation ensures safe and efficient operation.

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 outdoors with appropriate ventilation. Indoor installation in poorly ventilated spaces will result in poor performance and potential damage.

The Evo 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 from piping).
• No greater than 5m below the pool/spa water level.

Ensure the heat pump is not located where roof run-off or debris can enter the unit. A water deflector may be needed. Avoid installation near harsh or corrosive chemicals. Install on a flat, level surface. For unsuitable outdoor locations, contact EvoHeat for advice.

5.3 Airflow Clearances

Ensure the heater is installed in a well-ventilated area with ample fresh air. Maintain a minimum gap of 1500mm on the sides and 500mm overhead clearance. A minimum gap of 50mm is required at the rear.

Provide sufficient space for unobstructed airflow. Avoid enclosed areas where discharged cold air could recirculate, reducing heating efficiency and potentially causing icing.

If installation location does not meet these clearances, contact EvoHeat Tech Support.

Diagram illustrating recommended airflow clearances around the heat pump, showing minimum side clearances of 1500mm, a minimum overhead clearance of 500mm, and a minimum rear clearance of 50mm.

5.4 Adequate Water Flow

All EvoHeat heat pumps have a factory pre-set internal water flow switch; the unit will not operate without sufficient flow. It is vital to maintain adequate water flow to prevent efficiency loss and unit damage. Optimal flow rates are detailed in this manual.

Before connecting the heater, flush all piping thoroughly to remove debris that could jam the flow switch or damage the heater. When cleaning the pool, turn off the heater to prevent restricted flow, which can trigger low water flow (E03) or high pressure (E01) faults.

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

5.5 Rubber Feet

EvoHeat units include rubber feet, recommended for installation to reduce vibration and provide 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 from the heater. If stiff, place it in hot water to soften.

5.7 Drainage & Condensation

Water condensation on the evaporator fins during operation is normal, especially in high humidity, and can appear as leaks. This process increases during reverse cycle or de-icing modes, typically below 8°C. Condensate drains from the base of the heater.

An optional 20mm clear vinyl tube can be connected to the base drain to direct condensate. To verify condensation, turn off the unit while the pool pump runs; if water stops, it's condensation. Testing drain water for chlorine can also confirm it.

5.8 Plumbing

The unit's titanium heat exchanger requires no special plumbing arrangements beyond a bypass, with flow rate set according to the nameplate. Water pressure drop is less than 10kPa at maximum.

Flow Rate

As there are no residual heat or flame temperatures, copper heat sink piping is not required. PVC pipe can be run directly into the unit.

Location

Connect the unit in the pool pump discharge (return) line, downstream of all filters and pumps, and upstream of any chlorinators, ozonators, or chemical pumps.

Diagram showing plumbing connection: From Pump -> Filter -> Heat Pump Inlet -> Heat Pump Outlet -> To Pool. Includes recommended PVC coupler and condensate drain barb FTG.

Standard models use slip glue fittings for 32mm or 50mm PVC pipe. A 50NB to 40NB fitting can be used for 40NB plumbing.

Consider adding quick coupler fittings at the inlet/outlet for easier draining and servicing. Ensure pipework is supported to prevent movement that could pinch the O-ring and cause leaks.

5.9 Water Pump Connection

Three connection options for heat pump/water pump activation:

1. Remote On/Off: For external pool automation (signal input).
2. Water Pump: 230V connection for a dedicated water pump.
3. Dry Contact: For chlorinators with dry contact capabilities (signal output).

5.10 Electrical Connection

NOTE: Electrical work must be performed by a qualified electrician according to relevant Australian Standards, laws, and local legislations.

Ensure all cabling, circuit breakers, and protections are correctly sized and specified per electrical wiring legislation. Verify adequate voltage and current at the connection point.

Voltage range: 220-240V (single phase), 380-415V (3 phase). Deviations may cause damage and void the warranty.

1. Ensure power is disconnected before installation or service.
2. Comply with national and local electrical codes and standards.
3. Ensure electrical cable size is adequate for heater requirements.
4. The heater must have a circuit breaker and isolation device.
5. Install the circuit breaker between the heater and water circulation pump if the pump is hard-wired. Note: breaker sizes do not account for a hard-wired pump.
6. The unit must be well-earthed. Access electrical terminals by removing the front panel. The wiring diagram is inside the front panel or at the back of this manual.

5.11 Initial Start-Up

The filter pump MUST be running to circulate water through the heat exchanger for the unit to heat the pool or spa.

1. Turn on the filter pump. Check for water leaks and verify flow to and from the pool.
2. Turn on the unit's electrical power supply. Press the ON/OFF button on the controller; the unit will start within 60 seconds. The outlet water temperature will be displayed.
3. After a few minutes, check that the air leaving the unit is approximately 5-10°C cooler than the ambient air.
4. With the unit running, turn off the filter pump. The unit should automatically shut down.
5. Allow the unit and pool pump to run continuously until the desired temperature is reached (this may take several days). The unit will periodically slow down and shut off if the temperature is maintained for at least 45 minutes. It will automatically restart (if the pool pump is running) when the pool temperature drops more than 0.2°C below the set temperature.

6. Operation

6.1 The Controller

The controller features several buttons and a display area:

• ON/OFF ?: Starts up or shuts down the unit.
• CLOCK ⏰: For system time or clock timer settings.
• MODE ☰: Switches unit mode, temperature setting, and parameters.
• UP ⬆️: Increases or decreases a value; scrolls up/down pages.
• DOWN ⬇️: Increases or decreases a value; scrolls up/down pages.

Status indicators include:

• Defrosting: Unit is currently defrosting.
• Compressor: Compressor has started.
• Water Pump: Water pump has started.
• Fan: Fan has started.
• Water Outlet: Displays the water outlet temperature.
• Water Inlet: Displays the water inlet temperature.

Illustration of the heat pump's controller display showing current operating status. It displays the outlet water temperature (OUT) and inlet water temperature (IN), along with icons indicating the unit's mode (e.g., heating), compressor status, fan status, and water pump status.

6.2 Operating Functions

6.2.1 Startup & Shutdown

Press the ON/OFF button to turn the unit on or off. When on, the outlet water temperature is displayed instead of 'Off'. The screen sleeps after one minute of inactivity; press any key to wake it.

6.2.2 Setting the Mode

From the main menu, press MODE to cycle through Heating, Cooling, and Automatic modes. Leave the panel idle for a few seconds to apply changes.

6.2.3 Setting a Target Temperature

From the main menu, use the UP or DOWN arrow keys to adjust the target temperature. The value will flash while editing. Press MODE or leave the screen idle for 5 seconds to save changes.

Illustrations showing the controller display changing as the target temperature is adjusted.

6.2.4 System Time Settings

Adjust the system time to your local time via the CLOCK button. Once the time flashes, use the arrow keys to set the hour, press CLOCK, then set the minute, and press CLOCK to save. Use POWER to cancel adjustments.

Illustrations showing the sequence of button presses and display changes for setting the system time.

6.2.5 On-Off Timer

To set a startup or shutdown timer, hold the CLOCK button for up to 5 seconds until the alarm clock symbol flashes. Press CLOCK to enter ON/OFF Timer settings. Use arrow keys to select ON or OFF timer, then CLOCK to adjust hour and minute values.

Illustrations showing the sequence of button presses and display changes for setting the ON/OFF timer.

6.2.6 Mute Timer

The Mute Timer allows operation at reduced noise levels for a specified period. Note: Silent mode reduces compressor speed, lowering heating capacity.

To set, hold CLOCK for up to 5 seconds until the alarm clock symbol flashes. Use the arrow key to select MUTE, then press CLOCK to enter settings. Use the same steps as the On-Off Timer to adjust hour and minute values.

Illustrations showing the sequence of button presses and display changes for setting the Mute Timer.

6.2.7 Locking the Keyboard

Lock the keyboard to prevent accidental changes. Hold the POWER button for 5 seconds to lock or unlock. A lock symbol ? will appear on the screen.

6.2.8 Fault Interface

If a fault occurs, a flashing warning symbol ⚠️ appears. Press POWER for half a second to view faults. The display shows a fault code and the number of errors. Use arrow keys to browse multiple errors.

7. Troubleshooting

7.1 Electronic Control Fault Table

This table lists common faults, their display codes, reasons, and elimination methods:

7.2 Frequency Conversion Board Fault Table

This table lists faults related to the frequency conversion board, their display codes, reasons, and elimination methods:

8. Appendix

8.1 Wiring Diagrams

Detailed electrical wiring diagrams are provided for the EvoHeat EDGE-i series heat pumps (Edge-i 7, Edge-i 9, Edge-i 13, Edge-i 17, Edge-i 20). These diagrams illustrate the connections between the main unit, controller, power supply, pump, and various sensors and components. Key components labeled include AT (Ambient temp.), COMP (Compressor), CT (Coil temp.), EEV (Exhaust temp.), ET (Exhaust temp.), FM (Fan motor), FS (Flow switch), HP (High pressure protection), IT (Inlet water temp.), K2 (Relay of pump), LP (Low pressure protection), OHP (Overheat protection), OT (Outlet water temp.), SUT (Suction temp.), 4V (4-way valve), WiFi, DCFAN, RS485, and others. These diagrams are essential for qualified technicians during installation and troubleshooting.

Detailed electrical wiring diagrams for the EvoHeat EDGE-i series heat pumps, illustrating the connections between the main unit, controller, power supply, pump, and various sensors and components.

8.2 Parameter List

8.3 Cable Specifications

Cable specifications for single and three-phase units are provided, detailing required cable sizes based on the nameplate maximum current.

Single Phase Unit

Three Phase Unit

9. Maintenance

9.1 F.A.Q

SHOULD I CHECK MY UNIT REGULARLY?

An annual maintenance check is recommended to prevent potential 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:

• Inspection of the unit's operation:
  • Check if the unit is reaching set temperature.
  • Look for visible water leaks (test water for chlorine or pool chemicals to distinguish from condensation).
  • Monitor the temperature difference between inlet and outlet temperatures on the display.
  • Isolate unit power and remove debris from around the evaporator to prevent airflow restriction. Clean the evaporator coil with a soft brush, brushing downwards to avoid damaging fins.
• Conduct a visual inspection of all plumbing and electrical connections.
• Check the condensate drain line for blockages and clear if necessary. The drain is typically attached to a plastic barb at the unit's base.
• Perform a general external clean of the unit 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 air conditioning or refrigeration technician. Coastal areas may require more frequent service.

During service, operational pressures of the refrigeration system are checked, and the unit and fins are cleaned for optimal performance.

TWO YEAR SERVICE

This maintenance should be carried out by EvoHeat Authorised personnel. Regular servicing ensures efficiency and longevity.

Contact EvoHeat Service at 1300 859 933 for your nearest Accredited Service Agent. Only genuine replacement parts should be used.

The two-year service includes:

• All items from Annual Maintenance.
• Removal of unit covers to inspect parts and internal leaks.
• Check/tighten Heat exchanger Nut and Olive.
• Check Fan operation.
• Check compressor current draw.
• Check electrical resistance and components for carbon build-up, loose wiring, etc.
• Wash out Evaporator Coil.
• Vacuum Drain to ensure no blockages.

9.2 Advanced

CHECK THE AREA

Before working on systems with flammable refrigerants, conduct safety checks to minimize ignition risk. Follow these precautions for refrigerating system repairs:

• PRESENCE OF FIRE EXTINGUISHER: Have appropriate fire extinguishing equipment (dry powder or CO2) available for hot work.
• CHECKING FOR PRESENCE OF REFRIGERANT: Use an appropriate refrigerant detector to check for flammable atmospheres. Ensure detection equipment is suitable for flammable refrigerants (non-sparking, sealed, intrinsically safe).
• CABLING: Check cabling for wear, corrosion, pressure, vibration, sharp edges, or adverse environmental effects, including aging and vibration from compressors/fans.
• REPAIR TO INTRINSICALLY SAFE COMPONENTS: Do not apply inductive or capacitance loads without ensuring they meet equipment specifications. Intrinsically safe components can be worked on live in flammable atmospheres. Use correctly rated test apparatus and manufacturer-specified parts.
• NO IGNITION SOURCES: Keep ignition sources (including smoking) far from the work area to prevent fire or explosion risk from refrigerant leaks. Survey the area for hazards and 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 safe by controlling flammable materials.

WORK PROCEDURES

Undertake work under controlled procedures to minimize the risk of flammable gas or vapour presence.

VENTILATED AREA

Ensure the work area is open or adequately ventilated before breaking into the system or performing hot work. Maintain ventilation to disperse released refrigerant.

DETECTION OF FLAMMABLE REFRIGERANTS

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

LABELLING

Label equipment as de-commissioned and emptied of refrigerant, including date and signature. Ensure equipment is labeled as containing 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.
• Avoid overfilling the refrigeration system.
• Pressure test with OFN before recharging and leak test upon completion and before leaving the site.

CHECKS TO THE REFRIGERATION EQUIPMENT

• Verify charge size matches room size.
• Ensure ventilation machinery and outlets are adequate and unobstructed.
• Check secondary circuits for refrigerant presence if used.
• Ensure equipment markings are visible and legible.
• Install refrigeration pipes/components away from corrosive substances or use resistant materials.

CHECKS TO ELECTRICAL DEVICES

Initial safety checks include discharging capacitors safely, ensuring no live electrical components are exposed during charging/recovering/purging, and checking earth bonding continuity.

REPAIRS TO SEALED COMPONENTS

1. Disconnect all electrical supplies before working on sealed components. If live work is necessary, use permanent leak detection.
2. Ensure casing integrity is maintained when working on electrical components to preserve protection levels.
3. Mount apparatus securely.
4. Ensure seals or sealing materials are intact. Use manufacturer-specified replacement parts.

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

LEAK DETECTION METHODS

Use electronic leak detectors for flammable refrigerants, ensuring they are calibrated and suitable for the refrigerant. Leak detection fluids are generally suitable, but avoid chlorine-containing detergents.

If a leak is suspected, remove all naked flames. For brazing, recover or isolate refrigerant, purge with oxygen-free nitrogen (OFN) before and during brazing.

REMOVAL AND EVACUATION

Follow standard procedures for breaking into the refrigerant circuit, prioritizing safety due to flammability. This involves removing refrigerant, purging with inert gas, evacuating, purging again, and then opening the circuit.

RECOVERY

Recover refrigerant into correct cylinders, flushing the system with OFN. Ensure the vacuum pump outlet is not near ignition sources and has ventilation. Transfer refrigerant safely using appropriate cylinders and equipment. Ensure cylinders are on scales before recovery and do not overfill or exceed working pressure.

DECOMMISSIONING

Technicians must be familiar with the equipment. Isolate electrically. Ensure mechanical handling equipment, PPE, and supervision are available. Pump down the system. If vacuum is not possible, use a manifold. Recover refrigerant according to manufacturer instructions. Close all valves and remove equipment promptly. Recovered refrigerant must be cleaned and checked before reuse.

10. Warranty

REGISTER YOUR WARRANTY

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

Warranty terms commence from the date of purchase.

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

Warranty is conditional upon correct operation and regular maintenance by the owner. It does not cover non-product-related faults. The owner is responsible for:

• Operating and maintaining the heat pump according to instructions.
• Performing regular cleaning and annual maintenance checks.
• Keeping air inlets and outlets free from obstructions.
• Ensuring the condensate drain is clean and unobstructed.
• Ensuring plumbing and electrical connections are secure and in good working order. Note: Loose plumbing fittings causing damage are not covered.
• Applying corrosion protection if installed in a corrosive environment.

This warranty does not cover:

• Natural Disasters (hail, lightning, flood, fire).
• Damage from animals or creatures.
• Rust or cabinet damage from corrosive atmospheres or environmental conditions.
• 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 where the issue is explained in the operation instructions.
• Costs associated with delivery, handling, freighting, or transit damage.
• Relocation of the unit from its original installation location.

For warranty service:

• Contact Evo Industries Australia on 1300 859 933 or via the website.
• Provide a copy of your receipt as proof of purchase.
• Complete the online Service Request Form at evoheat.com.au/service-request/.

Onsite technical service is available within the normal operating area of Evo Authorised Service Agents. Service outside this area may incur a traveling fee.

The benefits of this express warranty are in addition to all other conditions, warranties, rights, and remedies implied by law.