EVO HEAT EVOFLEX Domestic Hot Water and Space Heat Pump Instruction Manual

EVO HEAT EVOFLEX Domestic Hot Water and Space Heat Pump Instruction Manual

1. Introduction

This manual contains information relating to the installation, troubleshooting, operation, and maintenance of this EvoHeat unit. Instructions in this manual must always be followed. Failure to comply with these recommendations will invalidate the warranty. Should you have any questions or require technical support, call the EvoHeat office on 1300 859 933 to speak to our team.
The data and information contained in this manual is correct at the time of publishing and is subject to change without notice. For the most up to date manual, contact EvoHeat directly.

Heating: Ambient temp.(DB/WB): 7°C/6°C, Water temp. (In/Out): 30°C/35°C Cooling: Ambient temp.(DB/WB): 35°C/24°C, Water temp. (In/Out): 12°C/7°C The above data is tested under compressor frequency of 90Hz. The data above is for reference only.

2. Dimensions

3. Safety Instructions

• Installation, repairs and maintenance of this unit must be performed by a qualified technician.
• Any wiring must comply with local electrical regulations.
• If any abnormal instances occur or a strange smells, the unit must be shut off by the power supply.
• Do not put fingers or objects into the fans or evaporator of the unit.
• The unit must be earthed to avoid any risk caused by insulation defects.
• No wiring must come into contact with the heat source or the rotating fan parts.
• The unit must be handled and lifted with appropriate equipment in correlation with the unit’s size and weight.
• Electrical power must be switched off before any work is started on the unit.
• Do not expose the unit to or install near any flammable gases.
• Ensure there is a circuit breaker for this unit.
• Copper and iron can not be used as a fuse.
• The unit is equipped with an over-load protection system. After a previous stoppage, the unit will not start for at least 3 minutes.
• If the supply cord is damaged, it must be replaced by the manufacturer, our service agent or a similarly qualified person in order to avoid a hazard.
• USE SUPPLY WIRES SUITABLE FOR 75.
• Caution: Single wall heat exchanger, not suitable for potable water connection.

4. Installation

4.1 Transit

When transporting the unit, ensure the unit is kept standing upright. Laying the unit down may damage internal parts.

If the unit needs to be hung up (such as for lifting with a crane) use an 8-metre cable. Ensure there is some kind of padding between the cable and the unit to prevent damage to the heat pump cabinet.

4.2 Location of Install

The unit can be installed in any outdoor area which can carry the weight of heavy machinery, such as a terrace, rooftop, the ground etc.

• The location must have adequate ventilation and be free from strong winds.
• The installation location must be free from heat radiation and fire hazards.
• Ensure there are no obstacles near the air inlet and outlet of the heat pump.
• There must be a water channel around the heat pump to drain condensing water.
• Ensure that there is enough space around the unit for maintenance.
• The heat pump can be installed onto the concrete basement using expansion screws, or onto a steel frame with rubber feet which can be placed on the ground or rooftop. Ensure the unit is placed horizontally.

4.3 Minimum Clearances

4.4 Plumbing

• Try to reduce the resistance to the water from the piping.
• The piping must be clear and free from dirt and blockage. A water leakage test must be carried out to ensure that there is no water leaking before the installation can be made.
• The pipe must be tested by pressure separately. DO NOT test it together with the unit.
• There must be an expansion tank on the top point of the water loop, and the water level inside the tank must be at least 0.5meters higher than the top point of the water loop.
• The flow switch is installed inside of the heat pump, check to ensure that the wiring and action of the switch is normal and controlled by the controller.
• Try to avoid any air from being trapped inside the water pipe, there must be an air vent on the top point of the water loop.
• There must be a thermometer and pressure meter at the water inlet and outlet for easy inspection during running.
• There must be drainage on the low points of the water system, and there is already drainage on the chassis of the heat pump. The water in the system must be drained out during winter if the heat pump is not to be used.

4.5 Electrical Connection

⚠ Always use a suitably qualified Electrician to perform any electrical work, they must read the manual before connecting.
Ensure all cabling, circuit breakers, and protections are of a suitable size and specification in accordance with electrical wiring legislation for the heater being installed. Ensure to check that there is adequate voltage and current available at the heater connection to run the unit.

• Open the panel and open the power line hole
• Thread the power line though the hole and connect it to the power line terminal. The three-core control line of the remote controller shall be plugged with the three-core signal line on the main board according to the wiring diagram.
• For an external water pump, thread the power line of the water pump through the hole and connect it to the water pump terminals.
• If an additional auxiliary heater is needed to be to be controlled by the heat pump controller, the relay (or power) of the aux-heather must be connected to the relevant output of the controller.

4.6 Initial Start-up

Prior To:
Check the indoor unit, make sure that the pipe connection is done correctly and that the relevant valves are open.
Check the water loop to ensure that there is enough water inside of the expansion tank, that the water supply is good and that the water loop has no air in it and is full of water. Make sure there in good insulation for the water pipe.
Check the electrical wiring. Make sure that the power voltage is normal, the screws are fastened, the wiring is made in line with the diagram and the earthing is connected.
Check that the heat pump, including all the screws and different parts are in good order. When the power is on, review the indicator on the controller to see if there is any failure indications. The gas gauge can be connected to the check valve to see the high pressure (or low pressure) of the system during trial running.

Trial Operation:
Start the heat pump and check whether the water pump is running, if it is running normally there will be 0.2MPa on the water pressure meter.
When the water pump runs for 1 minute, the compressor will start. Hear whether there is a strange sound coming from the compressor. If an abnormal sound occurs, please stop the unit and check the compressor. If the compressor runs well, look for the pressure meter of the refrigerant.
Check whether the power input and running current is in line with the manual. If not stop the unit and check for why this may be occurring.
Adjust the valves on the water loop to make sure that the hot (cool) water supply to each door is good and meets the requirement of heating (or cooling).
Review whether the outlet water temperature is stable.

5. Operation

5.1 The Controller

5.2 Operating Functions

5.2.1 Start-up & Shutdown

To turn the unit on or off, press ON/OFF button. The icon will be grey when the unit is off, and green when it is on.

5.2.2 Mode Switch

From the main menu there are five different operating modes that can be chosen from. Press MODE to select from the options:
Hot Water, Heating, Cooling, Hot Water & Heating or Hot Water & Cooling
Note: If you have purchased a heating-only model (with no cooling functions) “cooling” mode will not appear.

5.2.3 Setting the Target Temperature

Press the TEMP. SETTING button to change the set temperature values of heating and/or cooling mode.
Press the temperature value to alter the value, then press `Enter’ to save and return to the main menu.

5.2.4 Fast Heating Mode

While the unit is in heating mode, press the FAST HEATING to enable the rapid heating function.

5.2.5 Setting a Timer

You can set a customised start-up and shutdown timer for your unit.
Press the TIMER button on the main menu and enter your desired ON’ &OFF’ times.
Press the On/Off button to the left of each time to toggle the start/end timers. When they are not on the button will be grey instead of coloured.
Example: The unit will turn on at 17:10 and shut down at 20:10.

5.2.6 Setup Interface

5.2.7 Setting the Date & Time

From the Setup interface, press CLOCK to enter into the system date & time setting menu. Use the arrows to adjust the date & time as required, then press the enter button to save changes.
Press the return key to return to the previous menu or to cancel any changes.

5.2.8 Fault Interface

Press the FAULT icon on the main menu to display a record of all failures that have occurred.
After faults have been reviewed and corrected, press the top right `Clear’ button to wipe the records.
Note: when clearing the fault records, it may ask for a password first. The password will be the first 2 numbers of the top fault. In this example, the password would be 12.

5.2.9 Colour Display Calibration

Keep clicking quickly at the blank area on any interface till you hear a long beep. You will then enter the calibration interface. Click “+” to start calibration. When you hear the beep again, you will have finished calibration and can exit.

6. Troubleshooting

6.1 Electronic Control Fault Table

6.2 Frequency Conversion Board Fault Table

6.3 Troubleshooting Table

7. Appendix

7.1 Parameter List

7.2 Install Sketch Map

Special Installation (Expandable Water Tank)

1. Main Unit
2. Connecting Hose
3. Pressure Meter
4. General Valve
5. Three-way Valve
6. Y-type Filter
7. Safety Valve
8. Expansion Tank
9. Vent Valve
10. Automatic Refill Valve
11. Pressure Differential Bypass Valve
12. Drain Valve
13. Non-return Valve
14. Water Pump
15. Fan Coil

7.3 Automatic Filled Water Valve

When the automatic filled-water valve is installed, the arrowhead orientation of inlet water must accord with the orientation of the valve.

Automatic filled-water has been adjusted in advance to 1.5ba.
If readjusting the pressure of inlet water, please operate as follows:

• Open the Screw Cap ( C )
• If reducing the pressure of water supply, unscrew the pressure to adjust the screw (B)
• If increasing the pressure of water supply, screw down the pressure to adjust the screw (B)

When the system needs to be filled with water at first, rest the handle (A) of filled water. Then the handle (A) can return (close) when the system is full of water.

Automatic filled-water valve needs periodic cleaning. When you must close the tap, unscrew the plug (D), remove the inside filter net. Reassemble after cleaning.

NOTE: There are two connections for water pressure meters in the central section of automatic filled-water, where the water pressure meter can be connected directly and display the set pressure. The screw cap ( C ) must be tweaked after adjusting the filled-water pressure.

7.4 Leakage Pressure Valve

The action pressure of the leakage pressure valve is more than 3bar (valve is open), but the pressure cannot be adjusted.
The valve will open automatically to make sure that the water loop of air-con system is safe when the water pressure in the backwater side is higher than the set pressure.

7.5 Assistant Heat Source Connection

Unit provides the connection of assistant heat-source, which can be not only be for a gas fired boiler, but also for an electronic boiler or warm-net pipe for city accordingly.

7.6 Cable Specifications

7.7 Controller Interface Diagram

8. Maintenance

DO I NEED TO GET MY UNIT SERVICED?
It is recommended that you get your EvoHeat unit serviced once a year by your local certified air conditioning or refrigeration technician. If your unit is located in a coastal area, more frequent maintenance may be necessary. During the service, they will check the operational pressures of the refrigeration system and give the unit and fins a good clean to ensure maximum performance.

DO WE HAVE RECOMMENDED SERVICE AGENTS?
EvoHeat have a large database of recommended service agents. Please contact EvoHeat tech support on 1300 859 933 for your local service agent details.

SHOULD I CHECK MY UNIT REGULARLY?
We recommend you check your unit regularly to avoid potential issues and damage to your heat pump.

Check the water inlet/outlets often for leaks. You should avoid the condition of no water or air entering into the system, as this will influence unit’s performance and reliability.

The area around the unit should be dry, clean and well ventilated. Make sure there is nothing blocking the airflow of the heater e.g. Leaf litter. Clean the heat exchanger every few months to keep a good heat exchange rate and save energy.

WHAT SHOULD I BE CHECKING REGULARLY?
You should discharge the water at the bottom of the water pump if the unit will not be used for an extended period. Discharge all water in the water pump and water system so that freezing of the water in the pump or water system does not occur. Check the unit thoroughly and fill the system with water fully before using it for the first time after a period of time.
Check the power supply and cable connection often, should the unit begin to operate abnormally, switch it off and contact the qualified technician

Clean the water filter periodically to maintain good water quality. Lack of water and dirty water can damage the unit. The heat pump will start the water every 72 hours when it is not running to avoid freezing.

The water loop of the heat pump MUST be protected from freezing in winter. Do not shut off the power supply to the heat pump in winter. When the air temperature is below 0°C, if the inlet water temperature is above 2°C and below 4°C the water pump will begin freezing protection. If the inlet water is lower than 2°C, the heat pump will begin heating.

9. Warranty

Refer to the EvoHeat website for warranty details

• Australia: https://evoheat.com.au/warranty-terms/
• South East Asia: http://evoheat.com.sg/warranty/

1. Warranty terms are from date of purchase.

2. This warranty excludes any defect or injury caused by or resulting from misuse, abuse, neglect, accidental damage, improper voltage, vermin infestation, incompetent installation, any fault not attributable to faulty manufacture or parts, any modifications which affect the reliability or performance of the unit.

3. This warranty does not cover the following:
   a. Natural Disasters (hail, lightening, flood, fire etc.)
   b. Rust or damage to paintwork caused by a corrosive atmosphere
   c. When serviced by an unauthorized person without the permission of Evo Industries
   d. When a unit is installed by an unqualified person
   e. Where a unit is incorrectly installed
   f. When failure occurs due to improper or faulty installation
   g. Failure due to improper maintenance (refer Operating Instructions)
   h. `No Fault Found’ service calls where the perceived problem is explained within the
   i. Costs associated with delivery, handling, freighting, or damage to the product in transit.

4. If warranty service is required, you should:
   a. contact Evo Industries Australia on 1300 859 933 or via our Contact page on our web site
   b. provide a copy of your receipt as proof of purchase
   c. have completed the online Warranty Registration Form

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

6. Unless otherwise specified to the purchaser, the benefits conferred by this express warranty and additional to all other conditions, warranties, rights and remedies expressed or implied by the Trade Practices Act 1974 and similar consumer protection provisions contained in legislation of the States and Territories and all other obligations and liabilities on the part of the manufacturer or supplier and nothing contained herein shall restrict or modify such rights, remedies, obligations or liabilities.

REGISTER YOUR WARRANTY
EvoHeat highly recommend customers complete their warranty details online to ensure efficient warranty claim processing.
To register your warranty, scan our QR Code or head to our website and fill in the Warranty Registration Form: https://evoheat.com.au/warranty- registration/

https://evoheat.com.au/warranty-registration/

info@evoheat.com.au
1300 859 933
www.evoheat.com.au

References

• Warranty terms - EvoHeat
• Pool Heating and Cooling Solutions | Evoheat
• Warranty Registration - Evoheat
• Warranty Terms - Evoheat

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