Thermotec Mini 4-5kw Mini Reversible Heat Pump User Manual

Thermotec Mini 4-5kw Mini Reversible Heat Pump

Product Information

The ThermoTec Mini Swimming Pool Heat Pump is a durable and efficient unit designed to heat the swimming pool water and maintain a constant temperature. It offers the following features:

1. Durable: The heat exchanger is made of PVC & Titanium tube, which can withstand prolonged exposure to swimming pool water.
2. Installation Flexibility: The unit can be installed outdoors.
3. Quiet Operation: The unit is equipped with an efficient rotary/scroll compressor and a low-noise fan motor, ensuring quiet operation.
4. Advanced Controlling: The heat pump includes micro-computer controlling, allowing for easy adjustment of operation parameters. The LCD wire controller provides real-time operation status display.

Product Usage Instructions

Installation and Connection
Follow the installation illustration provided in the manual for proper installation and connection of the swimming pool heat pump. Pay attention to the location, plumbing, and electrical wiring requirements.

Initial Start-up of the Unit

Once the installation is complete, follow the instructions in the manual for the initial start-up of the unit. This will ensure proper functioning and performance.

Use and Operation Instruction of Wire Controller

The wire controller allows for easy control and monitoring of the swimming pool heat pump. Refer to the manual for detailed instructions on the functions and usage of the wire controller.

Function of wire controller

The controller usage
ON/ OFF mode
When the unit is off, press the key and hold on for 0.5-5 seconds to turn on the unit;
When the unit is on, press the key and hold on for 0.5-5 seconds to turn off the unit.

Settings and viewing the set point (Desired water temperature)
In OFF mode and in ON mode
Press once the button or to view the set point. Press the button or again to set the desired set point.
Note: The settings are automatically saved after 3 s if no button is pressed.

Remark:

Operation| Short press, long press “ ” or“ ” to change each time within 2s| Long press “ ” or“ ” for more than 2s to change each time
---|---|---
Range of temp. Variation| 0.5℃ / 1℉| 1℃ / 1℉

Mode setting seconds
In the main interface, press and   for 0.5 can set the mode, press or to change the current mode, you can switch different modes of co ling, heating and auto mode. If there is no operation for 5 system will memorize the current mode and back to the main interface, if  press the change will not be saved and return to the main interface.

Malfunction display
There will be malfunction code showing on the controller screen when relative malfunction occurs. If there are more than one malfunctions occurs at the same time, you can check the current error codes list by pressing or key. In the main interface, if there is no operation for 20seconds, it will return to the malfunction display. You can refer to the malfunction table to find out the failure cause and solution.

Maintenance and Inspection

Regular maintenance and inspection are essential for optimal performance and longevity of the swimming pool heat pump. Follow the recommended time and frequency for maintenance tasks as stated in the manual. Use genuine standard spare parts for repairs to avoid warranty invalidation.\

• Check the water supply often. You should avoid the condition of no water flow or air entering into system, as this will influence unit’s performance and reliability. You should clean the pool filter regularly to avoid damage to the unit as a result of the dirty of clogged filter.

• The area around the unit should be dry, clean and well ventilated. Clean the heat exchanger fins regularly to maintain good air flow

• The operation pressure of the refrigerant system should only be serviced by a certified technician .

• Check the power supply and cable connection often,.Should the unit begin to operate abnormally, switch it off and contact the qualified technician.

• In winter, disconnect the hoses and drain all water in the heat pump so that freezing of the water in the heat pump does not occur. Damage caused to the heat pump by water freezing inside it, is not covered by the warranty. Store the heat pump inside for winter in a dry building

• 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.

• Work procedure
  Work shall be undertaken under a controlled procedure so as to minimise the risk of a flammable gas or vapour 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 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 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 area.

• No ignition sources
  No person carrying out work in relation to a refrigeration system which 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, removing 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.

• Checks to the refrigeration equipment
  Where electrical components are being changed, they shall be fit for the purpose and to t he 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 which 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.

• 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 absolutely 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 working on them.

• 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.

• 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 take into account the effects of aging or continual vibration from sources such as compressors or fans.

• Detection of flammable refrigerants
  Under no circumstances shall potential sources of ignition be used in the searching 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 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 supervised at all times by a competent person;
  • Recovery equipment and cylinders conform to the appropriate standards.
  • Pump down 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 cylinder is situated on the scales before recovery takes place.
  • Start the recovery machine and operate in accordance with 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

Appendix

The appendix section of the manual provides additional information such as cable specifications, a comparison table of refrigerant saturation temperature, and an explosive view of the unit. Refer to this section for further details.

Cable specification
Single phase unit

Nameplate maximum
current| Phase line| Earth line| MCB| Creepage protector| Signal line
---|---|---|---|---|---
No more
than 10A| 2×1.5mm2| 1.5mm2| 20A| 30mA less than 0.1 sec| n×0.5mm2
10~16A| 2×2.5mm2| 2.5mm2| 32A| 30mA less than 0.1 sec
16~25A| 2×4mm2| 4mm2| 40A| 30mA less than 0.1 sec
25~32A| 2×6mm2| 6mm2| 40A| 30mA less than 0.1 sec
32~40A| 2×10mm2| 10mm2| 63A| 30mA less than 0.1 sec
40 ~63A| 2×16mm2| 16mm2| 80A| 30mA less than 0.1 sec
63~75A| 2×25mm2| 25mm2| 100A| 30mA less than 0.1 sec
75~101A| 2×25mm2| 25mm2| 125A| 30mA less than 0.1 sec
101~123A| 2×35mm2| 35mm2| 160A| 30mA less than 0.1 sec
123~148A| 2×50mm2| 50mm2| 225A| 30mA less than 0.1 sec
148~186A| 2×70mm2| 70mm2| 250A| 30mA less than 0.1 sec
186~224A| 2×95mm2| 95mm2| 280A| 30mA less than 0.1 sec

Three phase unit

Nameplate maximum
current| Phase line| Earth line| MCB| Creepage protector| Signal line
---|---|---|---|---|---
No more than 10A| 3×1.5mm2| 1.5mm2| 20A| 30mA less than 0.1 sec| n×0.5mm2
10~16A| 3×2.5mm2| 2.5mm2| 32A| 30mA less than 0.1 sec
16~25A| 3×4mm2| 4mm2| 40A| 30mA less than 0.1 sec
25~32A| 3×6mm2| 6mm2| 40A| 30mA less than 0.1 sec
32~40A| 3×10mm2| 10mm2| 63A| 30mA less than 0.1 sec
40 ~63A| 3×16mm2| 16mm2| 80A| 30mA less than 0.1 sec
63~75A| 3×25mm2| 25mm2| 100A| 30mA less than 0.1 sec
75~101A| 3×25mm2| 25mm2| 125A| 30mA less than 0.1 sec
101~123A| 3×35mm2| 35mm2| 160A| 30mA less than 0.1 sec
123~148A| 3×50mm2| 50mm2| 225A| 30mA less than 0.1 sec
148~186A| 3×70mm2| 70mm2| 250A| 30mA less than 0.1 sec
186~224A| 3×95mm2| 95mm2| 280A| 30mA less than 0.1 sec

When the unit will be installed at outdoor, please use the cable which can against UV.

Comparison table of refrigerant saturation temperature

Temperature
(R410A)(℃)| -51.3| -20| -9| 4| 11| 19| 24| 31| 35| 39
Temperature
(R32)(℃)| -52.5| -20| -9| 3.5| 10| 18| 23| 29.5| 33.3| 38.7
Pressure (MPa )| 2.5| 2.8| 3| 3.3| 3.5| 3.8| 4| 4.5| 5| 5.5
Temperature
(R410A)(℃)| 43| 47| 51| 55| 57| 61| 64| 70| 74| 80
Temperature
(R32)(℃)| 42| 46.5| 49.5| 53.5| 56| 60| 62| 67.5| 72.5| 77.4

WARNING: Always adhere to the safety precautions mentioned in the manual to prevent accidents or hazards. If you have any doubts or concerns, contact a qualified installer or authorized dealer for assistance.

Explosive view of the unit
Model and code:(Thermotec Mini 5kW)

PREFACE

• In order to provide our customers with quality, reliability and versatility, this product has been made to strict production standards. This manual includes all the necessary information about installation, debugging, discharging and maintenance. Please read this manual carefully before you open or maintain the unit. The manufacture of this product will not be held responsible if someone is injured or the unit is damaged, as a result of improper installation, debugging, or unnecessary maintenance. It is vital that the instructions within this manual are adhered to at all times.
• The unit can only be repaired by qualified installer centre , personnel or an authorized dealer.
• Maintenance and operation must be carried out according to the recommended time and frequency, as stated in this manual.
• Use genuine standard spare parts only. Failure to comply with these recommendations will invalidate the warranty.
• The Swimming Pool Heat Pump heats the swimming pool water and keeps the temperature constant.

Our heat pump has following characteristics:

1. Durable
   The heat exchanger is made of PVC & Titanium tube which can withstand prolonged exposure to swimming pool water.

2. Installation flexibility
   The unit can be installed outdoors.

3. Quiet operation
   The unit comprises an efficient rotary/ scroll compressor and a low-noise fan motor, which guarantees its quiet operation.

4. Advanced controlling
   The unit includes micro-computer controlling, allowing all operation parameters to be set. Operation status can be displayed on the LCD wire controller.

WARNING
Do not use means to accelerate the defrosting process or to clean, Other than those recommended by the manufacturer. When not in use, the appliance shall be stored in a room without 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, Appliance shall be installed, operated and stored in a room with a floor area larger than 30m2. NOTE: The manufacturer may provide other suitable examples or may provide additional information about the refrigerant odour.

• This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.

• 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 which has at least 3mm clearances in all poles , and have a leakage current that may exceed 10mA, the 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 appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater.)

• Do not pierce or burn

• Appliance shall be installed, operated and stored in a room with a floor area larger than 30 m2 Be aware that refrigerants may not contain an odour. 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 affets 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.

Caution & Warning

1. The unit can only be repaired by qualified installer centre personnel or an authorized dealer. for Europe market

2. This appliance is not intended for use by persons (including children) with reduced physical sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety for Europe market Children should be supervised to ensure that they do not play with the appliance.

3.  Please make sure that the unit and power connection have good earthing, otherwise may cause electrical shock.

4. If the supply cord is damaged, it must be replaced by the manufacturer or our service agent or similarly qualified person in order to avoid a hazard.

5. Directive 2002/96/EC (WEEE):
   The symbol depicting a crossed-out waste bin that is underneath the appliance indicates that this product, at the end of its useful life, must be handled separately from domestic waste, must be taken to a recycling centre for electric and electronic devices or handed back to the dealer when purchasing an equivalent appliance.

6. Directive 2002/95/EC (RoHs): This product is compliant with directive 2002/95/EC (RoHs) concerning restrictions for the use of harmful substances in electric and electronic devices.

7. The unit CANNOT be installed near the flammable gas. Once there is any leakage of the gas , fire can be occur.

8. Make sure that there is circuit breaker for the unit, lack of circuit breaker can lead to electrical shock or fire.

9. The heat pump located inside the unit is equipped with an over-load protection system. It does not allow for the unit to start for at least 3 minutes from a previous stoppage.

10. The unit can only be repaired by the qualified personnel of an installer center or an authorized dealer.

11. Installation must be performed in accordance with the NEC/CEC by authorized person only. for North America market

12. USE SUPPLY WIRES SUITABLE FOR 75 .

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

SPECIFICATION

Performance data of Swimming Pool Heat Pump
*** REFRIGERANT : R32

Heating capacity
(27/24.3℃ ）| kW| 5
Btu/h| 17060
Heating Power Input| kW| 0.98
COP| | 5.10
Heating capacity
(15/12℃ ）| kW| 3.3
Btu/h| 11260
Heating Power Input| kW| 0.89
COP| | 3.3
Power Supply| | 220~240V～/50Hz
Compressor Quantity| | 1
Compressor| | rotary
Fan Number| | 1
Fan Power Input| W| 25
Fan Rotate Speed| RPM| 800
Fan Direction| | horizontal
Noise| dB(A)| 50
Water Connection| mm| 32
Water Flow Volume| m3/h| 1.8
Water Pressure Drop(max)| kPa| 1.5
Unit Net Dimensions(L/W/H)| mm| 420 x 350 x 380
Unit Ship Dimensions(L/W/H)| mm| 450 x 420 x 400
Net Weight| kg| see nameplate
Shipping Weight| kg| see package label

Heating:
Outdoor air temp: 27℃/24.3℃ , Inlet water temp:26℃
Outdoor air temp: 15℃/12℃, Inlet water temp:26℃
Operating range:
Ambient temperature: -7-43℃
Water temperature: 15-44℃

Dimensions for Swimming Pool Heat Pump
UNIT: Thermotec Mini 5kw

INSTALLATION AND CONNECTION

Installation illustration

Installation items:
The factory only provides the heat pump, the other items in the illustration are necessary parts for the operation of the system which are supplied by the end user or the installer.

Attention:
The schematic diagram is for reference only. Please check the water inlet/outlet labels on the heat pump when connecting the pipes

Swimming Pool Heat Pump Location
The unit will perform well in any outdoor location provided that the following three factors are presented:

1. Fresh Air
2. Electricity
3. Water supply

The unit may be installed virtually anywhere outdoors. For indoor pools please consult the supplier. Unlike a gas heater, it has no draft or pilot light problem in a windy area. DO NOT place the unit in an enclosed area with a limited air volume, where the units discharge air will be re-circulated.
DO NOT place the unit blowing onto shrubs or fences which can cause recirculation of the expelled air. Recirculation of the expelled air will reduce the heat output of the heat pump and may cause it to ice up, even in warm weather.

How Close To Your Pool?
Normally, the pool heat pump is installed within 2.5 metres of the pool. The longer the distance from the pool, the greater the heat loss from the hoses. Heat loss is minimal for runs of up to15 meters(15 meters to and from the pump = 30 meters total),. A very rough estimate of heat loss per 30 meters is 0.6 kW-hour,(2000BTU) for every 5c difference in temperature between the pool water and the ground surrounding the pipe, which translates to about 3% to 5% increase in run time.

Swimming Pool Heat Pump Plumbing
The Swimming Pool Heat Pump titanium heat exchanger requires no special plumbing arrangements except a bypass(please set the flow rate according to the faceplate) The water pressure drop is less than 10kPa at max. flow rate. Flexible hoses or solid PVC pipe can be run straight into the unit.
Location: Connect the unit in the pool pump discharge (return) line downstream of the filter and circulation pump, but upstream of any chlorinators, ozonators or chemical pumps.

Condensation: Since the heat pump cools down the air by about 4 -5c, condensation will condense on the fins of the evaporator. If the relative humidity is very high, this could be as much as several litres an hour. The water will run down the fins into the base of the heat pump and will drain out through the drain holes on the bottom of the heat pump. It is easy to mistake the condensation for a water leak inside the heat pump. If you turn off the heat pump, but allow the pool water to continue running through it, then after around 30-mins, the condensation will stop. A quick way to verify that the water is condensation is to shut off the heat pump but keep the pool circulation pump running. If the water stops running out of the basepan, after around 30 mins, then it is condensation.
AN EVEN QUICKER WAY IS to TEST THE DRAIN WATER FOR CHLORINE – if there is no chlorine present, then it is normal condensation.

Swimming Pool Heat Pump Electrical Wiring
NOTE: Although the unit heat exchanger is electrically isolated from the rest of the unit, it simply prevents the flow of electricity to or from the pool water. Earthing the unit is still required to protect you against short circuits
The heat pump is supplied with an inline RCD and UK plug. If the unit is connected to an outdoor socket, then the outdoor socket should be protected by an RCD
Disconnect – A disconnect means (circuit breaker , fused or un-fused switch) should be located within sight of and readily accessible from the unit, This is common practice on commercial and residential air conditioners and heat pumps. It prevents remotely-energizing unattended equipment and permits turning off power at the unit while the unit is being serviced.

Initial startup of the Unit
NOTE: In order for the heat pump to heat the pool, the pool circulation pump must be running to circulate water through the heat pump.
Start up Procedure – After installation is completed, you should follow these steps:

1. Turn on your pool circulation pump. Check for water leaks and verify flow to and from the pool.

2. Turn on the electrical power supply to the unit, then press reset button on the RCD
   Then press the ON/OFF button on the display panel. The heat pump should then start

3. After running a few minutes make sure the air leaving the fan should be cooler(Between 5-10 ℃)

4.  With the unit operating turn the filter pump off. The unit should also turn off automatically,

5. Allow the unit and pool pump to run 24 hours per day until desired pool water temperature is reached. When the water-in temperature reaches this setting, the unit will slow down for a period of time, if the temperature is maintained for 45 minutes the unit will turn off. The unit will now automatically restart (as long as your pool pump is running)when the pool temperature drops more than 0.5 below set temperature.

Time Delay- The unit is equipped with a 3 minute built-in solid state restart delay included to protect control circuit components and to eliminate restart cycling and contactor chatter. This time delay will automatically restart the unit approximately 3 minutes after each control circuit interruption. Even a brief power interruption will activate the solid state 3 minute restart delay and prevent the unit from starting until the 5 minute countdown is completed.
Water Flow Switch
The Thermotec Mini is equipped with a water flow switch. This turns on the heat pump when there is sufficient water flow to operate the internal flow switch. If your unit displays the E03 message, please check that your circulation pump is running. If it is but you still get the E03 message, please check that the filter is clean and if the pump/filter has sufficient flow rate for the Thermotec Mini When the pool circulation pump is turned off, the heat pump will shut down and show the E03 code. When the pool circulation pump is re-started the E03 message will clear and the heat pump will restart. This also allows an external time clock to be used on the circulation pump which will then control the Thermotec Mini

Trouble Shooting Guide

The common failure cause and solution.

is enough or not
High pressure protection| E01| The exhaust pressure is high, high pressure switch action| Check high pressure switch and cooling return circuit
Low pressure protection| E02| The suction pressure is low, low pressure switch action| Check low pressure switch and cooling return circuit
No water flow or flow switch failure| E03| No water flow of insufficient water flow| Check the water flow rate, ensure that the filter is running and is not dirty or blocked
Communication failure| E08| Communication failure between remote wire controller and main board| Check the wire connection between remote wire controller and main board
Temp. is too much different between water-inlet and outlet| E06| Water temp. difference between inlet and outlet is too large| Check the pipe water flow and whether water system is jammed or not
Low ambient temp. protection| TP| Ambient temperature is too low| Check the ambient temp. value
Defrost| DF| Is time to defrost| End defrosting

Parameter table

Interface diagram

Wire control interface diagram and definition

Controller interface diagram and definition

Connections explanation：

Operation instruction of Bluetooth

Account Login
Use email address and password to register, login or reset the password.

1. Account Registration: To register an account, click 1 (Fig.1) to jump to the Account Registration interface, fill in the relevant information and click 2 to receive verification code, while completed the application information, click 3 to read the details of the Privacy Policy, then click 4 to agree, and click 5 , registration is done.
   Please note, the valid time of one verification code is 15min, please fill in the verification code within 15min, otherwise you need to ask for a new one.

2. Log in: Follow the instructions on the page(Fig.1 ), enter your registered email address and password, click 6 and jump to device list;

3. Forgot Password: While forget your password, click 7 (Fig.1 ), jump to the Forgot Password interface (Fig.3 ). Follow the instructions on the page, fill in the relevant informations, click 8 to receive verification code from your mailbox, click 9 to comfirm and password reset is done.

Add Device
After log in, displays My Device interface (Fig. 4) , follow the instruction to add and bond device.

Device Management
Device management operations are as below :

Note: The setting of “Parameter Settings”(Fig.12) is used for after-sales maintenance only.

Contact Details
HeatPumps4Pools Ltd
Unit 3 Sovereign Business Park
Cranes Farm Rd
Basildon
Essex
SS14 3JD
Tel: 01268-206560
www.HeatPumps4Pools.com
enquiries@heatpumps4pools.com

References

• Pool Heat Pumps, Largest Range, UK & Europe HeatPumps4Pools

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