EVOHEAT Fusion-I 16 Pool Heat Pump User Manual

EVOHEAT Fusion-I 16 Pool Heat Pump.

Introduction

This manual contains all the necessary information in regard to the installation, troubleshooting, operation and maintenance of this unit. Ensure instructions in this manual are adhered to at all times. Failing to comply with these recommendations will invalidate the warranty.The Evo Fusion-i heat pump is the ideal choice for recreational pool & spa owners looking to extend their swim season with minimal running costs. Designed with the latest technology including stepless full DC inverter compressors, fans, and control systems – the Evo Fusion-i is the energy efficient and environmentally friendly way to enjoy a longer swim season.

• Heating: 27°C air / water 26°C / humid 80% * The data above is based on the EVO heat pump only, it does not include auxiliary devices. Product specification information provided above is correct at the date of printing, this data may change without notice. Please speak with an EvoHeat Specialist for the most current product specifications.

Unit Dimensions

Unit: mm

Fusion-i 7, 9 & 12

Fusion-i 16

Fusion-i 19

IMPORTANT THINGS TO NOTE

• Ensure you meet the minimum clearances and recommended installation locations as outlined in the manual.
• All heat pump accessories are contained in a plastic bag inside the packaging of your heat pump unit.

PRE-INSTALLATION

1. Position the heater on a level pad in the desired location on the pool water return line (as shown in the example image below).
2. Install the supplied antivibration rubber pads under the feet of the unit.
3. Install the supplied condensation barb to the underside of the unit and direct the condensation to an appropriate drainage point.

PLUMBING INSTALLATION

PLEASE NOTE: Evo heat pumps standard plumbing fitting size can accept 40mm NB PVC pipe for connection to the pool or spa filtration plumbing.

1. Attach the 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 by connecting a “T” piece to the heated line.
4. Make the plumbing connections and brace pipework where necessary.

ELECTRICAL CONNECTION

PLEASE NOTE: Electrical connection should only be completed by licenced personnel and in accordance with all relevant Australian Standards, applicable laws and local legislations.

1. Remove the external cover to the electrical terminal by removing the screws and the terminal cover panel.
2. Feed the electrical cable in through the conduit nipple and attach the electric supply wires to the applicable Active Neutral and Earth connections located in the electrical terminal.
3. To complete the electrical connection, install electrical conduit, UF cable or other suitable means as specified (as permitted by local electrical authorities) and connect the cable to a dedicated power supply branch circuit equipped with the appropriate size circuit breaker, or time delay fuse protection.

INITIAL START UP AND COMMISSIONING

PLEASE NOTE: The water pump must be running and water circulating through the heat pump for the system to operate.

1. Turn on your water filter pump and check for water leaks and verify flow to and from the pool.
2. Turn on the electrical power supply to the EvoHeat unit.
3.  Press the ON/OFF button of the controller for half a second, the heat pump will start within 60 seconds
4. To select the operating mode, press the “M” button to cycle to the sun icon (heating)
5. To set the temperature, press in the main interface, the current target-temperature will flash
6. Press to increase the temperature, or press to decrease the temperature
7. Once the desired temperature is displayed, allow the screen to time out to set
8. After the system has been running for approximately 5 minutes; check the 2 temperatures displayed on the screen and review the Temperature Differential (TD). The small temperature displayed is the cold water inlet temperature, the main temperature display is the heated water outlet.
9. Adjust the water flow by opening or closing the 3-way valve installed at the cold-water inlet to achieve a target TD of approximately 2°C (e.g. 22°C inlet water and 24°C outlet water)
10. If there is any interruption to water flow (i.e. when the water pump is turned off), the unit will automatically turn off and display an E03 error code – no water flow. This is normal and the system will restart once water flow is reinstated.

INITIAL HEAT UP TIME
Initial heat up times will vary depending on the size of your pool, environmental conditions and the capacity of the system installed. After installation please allow the unit and pool pump to run continuously until the desired pool water temperature is reached (it may take several days for the pool to initially reach the set temperature). EvoHeat Fusion-i Series Manual

Safety Instructions

Installation, repair or relocations must be done by a fully qualified person and not by the customer. If done incorrectly it may cause fire, electric shock, water leakage and other hazards. A circuit breaker must be installed for the unit. To avoid risk of electrical shock, the unit must have a good power connection and earthing. The unit is equipped with an over-load protection system. After a previous stoppage, the unit will not start for at least 3 minutes.  Do not use any means to accelerate the defrosting processor or to clean other than those recommended by the manufacturer. The unit must be stored in a room without any continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater.) Do not pierce or burn. Be aware that refrigerants may not contain an odour.  If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. The appliance shall be installed in accordance with national wiring regulations. Before obtaining access to terminals, all supply circuits must be disconnected. An all-pole disconnection device must be incorporated which as at least 3mm clearances in all poles, a leakage current that may exceed 10mA, residual current device (RCD) having a rated residual operating current not exceeding 30mA and disconnection must be incorporated in the fixed wiring in accordance with the wiring rules. The unit should be installed, operated and stored in a room with a floor area larger than 30m2.

• The installation of pipe-work shall be kept to a minimum 30 m2
• Spaces where refrigerant pipes shall be compliance with national gas regulations.
• Servicing shall be performed only as recommended by the manufacturer.
• The appliance shall be stored in a well-ventilated area where the room size corresponds to the room area as specified for operation.
• All working procedure that affects safety means shall only be carried by competent persons.

Transport of equipment containing flammable refrigerants

• Compliance with the transport regulations
• Marking of equipment using signs
• Compliance with local regulations
• Disposal of equipment using flammable refrigerants
• Compliance with national regulations
• Storage of equipment/appliances
• The storage of equipment should be in accordance with the manufacturer’s instructions. Storage of packed (unsold) equipment
• Storage package protection should be constructed such that mechanical damage to the equipment inside the package will not cause a leak of the refrigerant charge.
• The maximum number of pieces of equipment permitted to be stored together will be determined by local regulations.

Use supply wires suitable for 75°C

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

Installation

System Installation

Installation Items
The factory only provides the main unit and the water unit; the other items in the illustration are necessary spare parts for the water system that are to be provided by users or the installer.

Attention
Please follow these steps when starting for the first time:

1. Open valve and charge water.
2. Make sure that the pump and the water-in pipe have been filled with water.
3. Close the valve and start the unit

The schematic diagram is for reference only. Please check the water inlet/outlet label on the heat pump while plumbing the unit.

IMPORTANT: EvoHeat heat pumps MUST be connected by a licensed electrician. Under no circumstances should an unlicensed person attempt to install or repair an EvoHeat heat pump themselves. Heater electrical installation undertaken by an unlicensed installer will void the warranty. Correct installation is required to ensure safe and efficient operation of your pool heater. Before installation it is very important to ensure 5 variables are carefully checked to allow the unit to operate correctly.

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

Heater Condition
Check the heater packaging upon delivery for any obvious signs of damage. Inform your supplier IMMEDIATELY if there is any evidence of rough handling. When the heater has been removed from the packaging check the refrigerant gauge on the front panel of the unit. The gauge should be showing a pressure of approx. 10 – 20 on the outside red band – any less than this figure means there may be a leak in the refrigerant system and you should immediately contact your EvoHeat Dealer.

NOTE: All accessories (drain barb, rubber feet, Wi-Fi module and barrel unions) and installation manuals are inside the DHP-R service panel. Please ensure to remove the service panel to locate these items.

Location Recommendations
Installation and service must be performed by a qualified installer. Evo recommend the heat pump should be installed in an outdoor location with appropriate ventilation. Installing the heater indoors without adequate ventilation, or in a poorly ventilated enclosed space, will result in very poor performance and can, in extreme cases, damage the heater. Ensure the heater is installed in a well-ventilated area with plenty of fresh air. Evo recommend the heat pump should ONLY be installed in a location with appropriate ventilation. The Evo pool heat pump should be installed with a minimum clearance of at least 3.5m to the water’s edge. Furthermore, EvoHeat recommends installing the heat pump no greater than 7.5 meters away from the water’s edge due to heat loss from the piping. The heat pump should be installed a maximum of 5m below the water level of the pool/spa. Make sure the heat pump is not located where large amounts of water may run-off from a roof into the unit. Sharp sloping roofs without gutters will allow excessive amounts of rain water mixed with debris from the roof to be forced through the unit. A water deflector may be needed to protect the heat pump. If installing the heater on an existing pump/filtration system the heater must be installed AFTER the filter and BEFORE the chlorinator/sanitizer. The heat pump should be installed on a flat-level surface. In the event that a suitable outdoor location is unavailable please contact Evo Industries for specialist technical advice ON 1300 859 933.

Airflow Clearances

Installing the heater indoors or in an enclosed space will result in very poor performance and can in extreme cases damage the heater. Ensure the heater is installed in a well-ventilated area with plenty of fresh air, a minimum gap between walls/fences etc of 600mm on the sides and 500mm overhead clearance. Leave sufficient space for unobstructed airflow into and out of the heater. Do not locate the heater in an enclosed area, or the discharged cold air will recirculate into the unit and consequently lower the heating efficiency as well as possible icing up. If you do not have a location with these suggested clearances, please contact our EvoHeat Tech Support Specialist to discuss appropriate installation locations.

Adequate Water Flow
All EVOHEAT heat pumps have a factory preset internal water flow switch. If there is insufficient water flow the heater will not operate.
It is CRITICAL that there is sufficient water flow to the unit. Incorrect water flow can cause a loss of efficiency and possible damage to the unit. Optimal water flow rates are listed in the EvoHeat manual. It is imperative that water flow is kept as close as possible to these flow rates. Correct water flow not only offers optimal heater performance, but may also prevent possible damage to your heater.
Before connecting the heater to the plumbing, all piping must be thoroughly flushed to ensure no debris can enter the heater. Failure to remove pipe debris can jam or damage the flow switch and may cause damage to the heater. When cleaning the pool it is advisable to turn off your heater as restricted water flow may cause the heater to shut down and indicate low water flow fault (E03 error) or high pressure fault (E01 Error).

IMPORTANT: A Variable speed pump or bypass valve and plumbing MUST be fitted to allow water flow to be adjusted through the heater. Do not direct connect a water pump with higher flow than required to the heat pump.

Rubber Feet
All EvoHeat units are provided with rubber feet which EvoHeat highly recommend being installed. The rubber feet help reduce vibration of the unit and help provide a space below the heat pump to install the drainage barbs.

Condensate Drain Barb
Fit the condensate drain barb into the 2 holes under the unit if you need to direct water away from the heater. Put in hot water if stiff.

Drainage & Condensation
Whilst the heater is operating, water in the air condenses on the fins of the evaporator. In the instance of high humidity, the condensate may be several litres per hour. This may give the impression that the heater is leaking, however this is a normal function of heat pumps. The heater will automatically activate reverse cycle or de-icing mode when required which also increases condensate discharge. This normally occurs at temperatures below 8 degC. The condensate water will discharge through the base of the heater. As an option a pipe can be connected to the drain on the base of the unit to direct condensate water to an appropriate location.

NOTE: A quick way to verify that the water is condensation is to shut off the unit and keep the pool pump running. If the water stops running out of the basepan, it is condensation. AN EVEN QUICKER WAY IS to TEST THE DRAIN WATER FOR CHLORINE – if the is no chlorine present, then it’s condensation.

Plumbing
The Swimming Pool Heat Pumps exclusive rated flow titanium heat exchanger requires no special plumbing arrangements except bypass (please set the flow rate according to the nameplate). The water pressure drop is less than 10kPa at max.
Flow rate: Since there is no residual heat or flame Temperatures, the unit does not need copper heat sink piping. PVC pipe can be run straight into the unit. Location: Connect the unit in the pool pump discharge (return) line downstream of all filter and pool pumps, and upstream of any chlorinators, ozonators or chemical pumps. Standard model have slip glue fittings which accept 40 mm PVC pipe for connection to the pool or spa filtration piping. By using a 50 NB to 40NB you can plumb 40NB. Give serious consideration to adding a quick coupler fitting at the unit inlet and outlet to allow easy draining of unit for winterizing and to provide easier access should servicing be required.

Electrical Connection

IMPORTANT: Always use a qualified Electrician to perform any electrical work. A licensed electrician must read the information before connecting. Ensure the power cable and circuit breaker are of a suitable size for the heater being installed. Also check that there is adequate voltage and current available at the heater connection to run the unit. Voltage range should be 220-230 volts for single phase, and 380-400 volts for 3 phase units. Voltage ranges outside these parameters will cause heater damage and void your warranty.

1. Ensure power is disconnected during installation or service.
2. Always comply with the national and local electrical codes and standards.
3. Ensure electrical cable size is adequate for heater requirements at the installation location.
4. The heater must be equipped with a circuit breaker and isolation device.
5. Circuit breaker must be installed between the heater and the water circulation pump if the water pump is hard-wired into the heater. Please note recommended circuit breaker sizes make no allowance for a water pump hard wired into the heater.
6. The unit must be well earthed. Remove the front panel to access the electrical connection terminals of the heater. The electrical wiring diagram is affixed to the inside of the front panel.

Initial Start-up
Refer to the Quick Start Guide, page 6 for instructions on the initial start- up and commissioning of the unit.

Operation

Main Controller Interface

Functions of the Controller

Start-up & Shutdown
Only from the main screen, the unit can be turned on of off. If the half or the full-off screen appears, press any key to go back to the main interface. 6.2 Functions of the Controller

Start-up & Shutdown
Only from the main screen, the unit can be turned on of off. If the half or full-off screen appears, press any key to go back to the main interface.

• When the unit is started using the controller, if the emergency switch was used to shut it down the controller will display as follows; the operation will be the same as the regular ON/OFF screen.

Switching Modes
To switch modes, from the main menu short press the MENU button to choose from Heating, Cooling or Auto modes. A symbol will display on the controller according to what mode is active. After 2 seconds without a change, the setting will be saved.

If the unit is defrosting, the defrosting symbol will display on the main interface. After defrosting is complete, the unit automatically switches to Heating or Auto mode depending on what was on prior to defrosting. Under defrosting the mode can be switched however the unit won’t apply the mode until defrosting has been completed.

Setting the Target Temperature
From the main menu, press the UP or DOWN keys to adjust the temperature setting as desired. If you press the ON/OFF button during this, you will be taken back to the main menu with no changes saved. If there is no operation for 5 seconds or the MODE button is pressed, the adjustments to the temperature will be saved and you will return to the main menu.

System Time Settings
Hold the CLOCK button for 2 seconds to enter the system time setting interface. Press the CLOCK again to adjust the time. After the first press, the hour parameter will be flashing which means it can be changed, use the UP & DOWN arrow accordingly. Press the CLOCK button again to move to adjusting the minute digits using the same process. Press the CLOCK button again to save and return to the main interface.

Under this menu, if there is no operation for 20 seconds the system will automatically memorise the settings and return to the main menu. Press the ON/OFF button at any time during changes to exit without saving changes.

Timer Settings

Setting a Timer
The controller can be set up as a two-stage timing switch: Timer ON1~OFF1; Timer ON2~OFF2. Select ON1, OFF1, ON2 or OFF2 on the timer setting interface. Press the CLOCK button to enter the timer setting interface. Press the UP or DOWN arrows to choose between ON1, OFF1, ON2 or OFF2. To set the time, follow the same process as changing the system time to adjust values.
Example: On at 9:20

NOTE: You will need to set both an ON & OFF Time if using this function

Cancelling a Timer
Select ON1, OFF1, ON2 or OFF2 to cancel the corresponding timer. To cancel a timer, while the hour value is selected and flashing, press the ON/OFF button to clear it. Then press the ON/OFF button again to save and return to the main button.

Example: Cancelling ON1 Timer

• To cancel first-stage timing switch, cancel both ON1 and OFF1
• To cancel the second-stage timing switch cancel both ON2 and OFF2
• To cancel the two-stage timing switch cancel all 4.

Silent Settings

One-Click Silent Function
Press the MUTE button to activate the one-click silent function. If the one- click silent and timing silent function are both started at the same time, press MUTE to cancel the one-click silent unction and quit the timing silent functions. At night or during rest periods, the user can start the one-click silent or the timing silent function to reduce noise.

Setting the Timing Silent Function
To set the Timing Silent function, HOLD the mute button for 2 seconds. A blank time parameter will be flashing, from here you can use the UP or DOWN arrows to select either the Timing ON or OFF function. Press the MUTE button to begin adjusting the hour value. Once this is done press the MUTE button again to save the time for the selected function. Repeat this process to set the alternate ON or OFF timer.

• When the MUTE icon is lit, the timing silent has been set but is not yet under silent status.
• When the MUTE icon is flashing, it is under silent status.
• When there is no MUTE icon, the timing silent has not been set.
• To cancel the Timing Silent Function, follow the process in 6.2.5.2 Cancelling a Timer.

Keyboard Lock
To lock the screen after adjusting settings, from the main menu hold the ON/OFF button for around 5 seconds. The keyboard will be locked when the small lock symbol appears. The screen can be locked while the controller is in the on or off interface. Under the locked screen, the only operation that can be performed is turning the unit on.

Fault Interface
When a failure occurs, the controller will display a code according to the reason of the fault (See 7. Troubleshooting for the definition of the codes). From the main interface, press the ON/OFF button to view the faults. If there are multiple faults, use the up and down keys to view others.

Troubleshooting

EvoHeat have developed a YouTube Channel where you will find useful videos – from setting up your timers to setting up the EvoHeat app. View it to see resolutions to some of our most asked, yet easily solved questions: https://www.youtube.com/channel/UCfYiOxHuybBuC1NZcqUnrcA

Electronic Control Fault Table

Frequency Conversion Board Fault Table

Appendix

Interface Drawings

1. Main Board – Fusion i7/ Fusion i9/ Fusion i12
2. Main board – Fusion i16/ Fusion i19

Parameter List

Cable Specifications

Single Phase Unit

Three Phase Unit

If the unit is to be installed outdoors, ensure that a UV resistant cable is used.

Comparison Table of Refrigerant Saturation Temperature

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.

What should I be checking regularly?
Check the water inlet/outlets often for leaks. You should avoid the condition of no water or air entering the system, as this will influence the unit’s performance and reliability. You should clear the pool/spa filter regularly to avoid damage to the unit as a result of the dirty of a clogged filter. 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. 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. You should discharge the water at the bottom of the water pump if the unit will not be used for an extended period. You should 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

CHECKS TO THE AREA

Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimized. For repair to the refrigerating system, the following precautions shall be complied with prior to conducting work on the system. a prolonged period of no usage.

WORK PROCEDURE
Work shall be undertaken under a controlled procedure to minimize the risk of flammable gas or vapor being present while the work is being performed.

GENERAL WORK AREA
All maintenance staff and others working in the local area shall be instructed on the nature of the work being carried out. Work in confined spaces shall be avoided. The area around the workspace shall be sectioned off. Ensure that the conditions within the area have been made safe by control of flammable material.

CHECKING FOR THE PRESENCE OF REFRIGERANT
The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the technician is aware of potentially flammable atmospheres. Ensure that the leak detection equipment being used is suitable for use with flammable refrigerants, i.e. non-sparking, adequately sealed or intrinsically safe.

PRESENCE OF FIRE EXTINGUISHER
If any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate fire extinguishing equipment shall be available to hand. Have a dry powder or CO2 fire extinguisher adjacent to the charging

NO IGNITION SOURCES
No person carrying out work in relation to a refrigeration system that involves exposing any pipe work that contains or has contained flammable refrigerant shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources, including cigarette smoking, should be kept sufficiently far away from the site of installation, repairing, removal and disposal, during which flammable refrigerant can possibly be released to the surrounding space. Prior to work taking place, the area around the equipment is to be surveyed to make sure that there are no flammable hazards or ignition risks. No Smoking signs shall be displayed.

VENTILATED AREA
Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere. a prolonged period of no usage.

CHECKS TO THE REFRIGERATION EQUIPMENT

• Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. At all times the manufacturer’s maintenance and service guidelines shall be followed. If in doubt consult the manufacturer’s technical department for assistance.
• The following checks shall be applied to installations using flammable refrigerants:
• The charge size is in accordance with the room size within which the refrigerant-containing parts are installed;
• The ventilation machinery and outlets are operating adequately and are not obstructed; If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the presence of refrigerant;
• Marking to the equipment continues to be visible and legible. Markings and signs that are illegible shall be corrected;
• Refrigeration pipe or components are installed in a position where they are unlikely to be exposed to any substance which may corrode refrigerant-containing components unless the components are constructed of materials that are inherently resistant to being corroded or are suitably protected against being so corroded.

CHECKS TO ELECTRICAL DEVICES
Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution shall be used. This shall be reported to the owner of the equipment, so all parties are advised.
Initial safety checks shall include:

• That capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking;
• That there no live electrical components and wiring are exposed while charging, recovering or purging the system;
• That there is continuity of earth bonding.

CABLING
Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also consider the effects of aging or continual vibration from sources such as compressors or fans.

REPAIRS TO SEALED COMPONENTS

1. During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked upon prior to any removal of sealed covers, etc. If it is necessary to have an electrical supply to equipment during servicing, then a permanently operating form of leak detection shall be located at the most critical point to warn of a potentially hazardous situation.
2. Particular attention shall be paid to the following to ensure that by working on electrical components, the casing is not altered in such a way that the level of protection is affected. This shall include damage to cables, excessive number of connections, terminals not made to original specification, damage to seals, incorrect fitting of glands, etc.

• Ensure that apparatus is mounted securely.
• Ensure that seals or sealing materials have not degraded such that they no longer serve the purpose of preventing the ingress of flammable atmospheres. Replacement parts shall be in accordance with the manufacturer’s specifications.

NOTE: The use of silicon sealant may inhibit the effectiveness of some types of leak detection equipment. Intrinsically safe components do not have to be isolated prior to

REPAIR TO INTRINSICALLY SAFE COMPONENTS
Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the permissible voltage and current permitted for the equipment in use. Intrinsically safe components are the only types that can be worked on while live in the presence of a flammable atmosphere. The test apparatus shall be at the correct rating. Replace components only with parts specified by the manufacturer. Other parts may result in the ignition of refrigerant in the atmosphere from a leak.

DETECTION OF FLAMMABLE REFRIGERANTS
Under no circumstances shall potential sources of ignition be used in the search for or detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall not be used.

LEAK DETECTION METHODS
The following leak detection methods are deemed acceptable for systems containing flammable refrigerants. Electronic leak detectors shall be used to detect flammable refrigerants, but the sensitivity may not be adequate, or may need re-calibration. (Detection equipment shall be calibrated in a refrigerant-free area.) Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used. Leak detection equipment shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant employed and the appropriate percentage of gas (25 % maximum) is confirmed. Leak detection fluids are suitable for use with most refrigerants but the use of detergents containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work. If a leak is suspected, all naked flames shall be removed/ extinguished. If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be recovered from the system, or isolated (by means of shut-off valves) in a part of the system remote from the leak. Oxygen-free nitrogen (OFN) shall then be purged through the system both before and during the brazing process.

REMOVAL AND EVACUATION
When breaking into the refrigerant circuit to make repairs or for any other purpose conventional procedures shall be used. However, it is important that best practice is followed since flammability is a consideration. The following procedure shall be adhered to:

• Remove refrigerant;
• Purge the circuit with inert gas;
• Evacuate;
• Purge again with inert gas;
• Open the circuit by cutting or brazing.

The refrigerant charge shall be recovered into the correct recovery cylinders. The system shall be “flushed” with OFN to render the unit safe. This process may need to be repeated several times. Compressed air or oxygen shall not be used for this task.
Flushing shall be achieved by breaking the vacuum in the system with OFN and continuing to fill until the working pressure is achieved, then venting to atmosphere, and finally pulling down to a vacuum. This process shall be repeated until no refrigerant is within the system. When the final OFN charge is used, the system shall be vented down to atmospheric pressure to enable work to take place. This operation is absolutely vital if brazing operations on the pipe-work are to take place.
Ensure that the outlet for the vacuum pump is not close to any ignition sources and there is ventilation available. working on them.

LABELLING
Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. The label shall be dated and signed. Ensure that there are labels on the equipment stating the equipment contains flammable refrigerant.

RECOVERY
When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice that all refrigerants are removed safely. When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. Ensure that the correct number of cylinders for holding the total system charge is available. All cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant (i.e. special cylinders for the recovery of refrigerant). Cylinders shall be complete with pressure relief valve and associated shut- off valves in good working order. Empty recovery cylinders are evacuated and, if possible, cooled before recovery occurs. The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at hand and shall be suitable for the recovery of flammable refrigerants. In addition, a set of calibrated weighing scales shall be available and in good working order. Hoses shall be complete with leak-free disconnect couplings and in good condition. Before using the recovery machine, check that it is in satisfactory working order, has been properly maintained and that any associated electrical components are sealed to prevent ignition in the event of a refrigerant release. Consult the manufacturer if in doubt.
The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery cylinder, and the relevant Waste Transfer Note arranged. Do not mix refrigerants in recovery units and especially not in cylinders.
If compressors or compressor oils are to be removed, ensure that they have been evacuated to an acceptable level to make certain that flammable refrigerant does not remain within the lubricant. The evacuation process shall be carried out prior to returning the compressor to the suppliers. Only electric heating to the compressor body shall be employed to accelerate this process. When oil is drained from a system, it shall be carried out safely.

DECOMMISSIONING
Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail. It is recommended good practice that all refrigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of reclaimed refrigerant. It is essential that electrical power is available before the task is commenced.

• Become familiar with the equipment and its operation.
• Isolate system electrically.
• Before attempting the procedure ensure that:
  • Mechanical handling equipment is available, if required, for handling refrigerant cylinders;
  • All personal protective equipment is available and being used correctly;
  • The recovery process is always supervised by a competent person;
  • Recovery equipment and cylinders conform to the appropriate standards.
• Pump down the refrigerant system, if possible.
• If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system.
• Make sure that the cylinder is situated on the scales before recovery takes place.
• Start the recovery machine and operate in accordance with the manufacturer’s instructions.
• Do not overfill cylinders. (No more than 80 % volume liquid charge).
• Do not exceed the maximum working pressure of the cylinder, even temporarily.
• When the cylinders have been filled correctly and the process completed, make sure that the cylinders and the equipment are removed from site promptly and all isolation valves on the equipment are closed off.
• Recovered refrigerant shall not be charged into another refrigeration system unless it has been cleaned and checked.

CHARGING PROCEDURES
In addition to conventional charging procedures, the following requirements shall be followed.

• Ensure that contamination of different refrigerants does not occur when using charging equipment. Hoses or lines shall be as short as possible to minimise the amount of refrigerant contained in them.
• Cylinders shall be kept upright.
• Ensure that the refrigeration system is earthed prior to charging the system with refrigerant.
• Label the system when charging is complete (if not already).
• Extreme care shall be taken not to overfill the refrigeration system.

Prior to recharging the system, it shall be pressure tested with OFN. The system shall be leak tested on completion of charging but prior to commissioning. A follow up leak test shall be carried out prior to leaving the site. The safety wire model is 5*20_5A/250VAC and must meet the explosion- proof requirements.

Warranty

Please refer to the EvoHeat website for warranty details

• Australia: www.evoheat.com.au
• South East Asia: www.evoheat.com.sg

1. Warranty terms are from the 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:
   • Natural Disasters (hail, lightning, flood, fire, etc.)
   • Rust or damage to paintwork caused by a corrosive atmosphere
   • When serviced by an unauthorized person without the permission of Evo Industries
   • When a unit is installed by an unqualified person
   • Where a unit is incorrectly installed
   • When failure occurs due to improper or faulty installation
   • Failure due to improper maintenance (refer to Operating Instructions)
   • ‘No Fault Found’ service calls where the perceived problem is explained within the
   • Costs associated with delivery, handling, freighting, or damage to the product in transit.
4. If warranty service is required you should:
   • contact Evo Industries Australia on 1300 859 933 or via our Contact page on our website
   • provide a copy of your receipt as proof of purchase
   • have completed the online warranty registration or provide a completed warranty card.
5. Onsite technical service is available within the normal operating area of your Evo Industries authorized Service Centre. Service outside this area will incur a traveling fee.
6. Unless otherwise specified to the purchaser, the benefits conferred by this express warranty and addition to all other conditions, warranties, rights and remedies expressed or implied by the Trade Practices Act 1974 and similar consumer protection provisions contained in the 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.

Warranty Registration
EvoHeat highly recommend customers to 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/

References

• Heat Pump | Pool Heating | Commercial and Domestic Heat Pump | EvoHeat
• Singapore | EvoHeat
• Warranty Registration - Evoheat

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