AUX ACHP-H16 Thermal Mono Atw Heat Pump Unit Instruction Manual

AUX ACHP-H16 Thermal Mono Atw Heat Pump Unit

Note: All the illustrations in this manual are for explanation purposes only. Your air conditioner may be slightly different. The actual shape shall prevail. They are subject to change without notice for future improvement.

NOTE: The picture and function described in this manual contain the backup heater components. Pictures in this manual are for reference only, please refer to the actual product.

SAFETY PRECAUTIONS

• The precautions listed here are divided into the following types. They are quite important, so be sure to follow them carefully. Meanings of
• DANGER, WARNING, CAUTION and NOTE symbols

INFORMATION

• Read these instructions carefully before installation. Keep this manual in handy for future reference.
• Improper installation of equipment or accessories may result in electric shock, short-circuit, leakage, fire or other damage to the equipment.
• Be sure to only use accessories made by the supplier, which are specifically designed for the equipment and make sure to get the installation done by a professional.
• All the activities described in this manual must be carried out by a licensed technician.
• Be sure to wear adequate personal protection equipment such as gloves and safety glasses while installing the unit or carrying out maintenance activities.
• Contact your dealer for any further assistance.

Caution: Risk of fire/ flammable materials

• WARNING Servicing shall only be performed as recommended by the equipment manufacturer, Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants.
• DANGER Indicates an imminently hazardous situation that if not avoided, will result in death or serious injury.
• WARNING Indicates a potentially hazardous situation which if not avoided, could result in death or serious injury.
• CAUTION Indicates a potentially hazardous situation which if not avoided, may result in minor or moderate injury. It is also used to alert against unsafe practices.
• NOTE Indicates situations that could only result in accidental equipment or property damage.

DANGER

• Before touching the electric terminal parts, turn off the power switch.
• When service panels are removed, live parts can be easily touched by accident.
• Never leave the unit unattended during installation or servicing when the service panel is removed.
• Do not touch water pipes during and immediately after operation as the pipes may be hot and could burn your hands. To avoid injury. give the piping time to return to normal temperature or be sure to wear protective gloves.
• Do not touch any switch with wet fingers. Touching a switch with wet fingers can cause electrical shock. Before touching electrical parts, turn off the applicable power to the unit.

WARNING

• Tear apart and throw away plastic packaging bags so that children will not play with them. Children playing with plastic bags face the danger of death by suffocation.
• Safely dispose of packing materials such as nails and other metal or wood parts that could cause injuries.
• Ask your dealer or qualified personnel to perform installation work by this manual. Do not install the unit yourself, Improper installation could result in water leakage, electric shocks or fire.
• Be sure to use only specified accessories and parts for installation work. Failure to use specified parts may result in water leakage, electric shocks, fire, or the unit falling from its mount.
• Install the unit on a foundation that can withstand its weight. Insufficient physical strength may cause the equipment to fall and possible injury.
• Perform specified installation work with full consideration of strong winds, hurricanes, or earthquakes. Improper installation work may result in accidents due to equipment falling.
• Make certain that all electrical work is carried out by qualified personnel according to the local laws and regulations and this manual using a separate circuit. Insufficient capacity of the power supply circuit or improper electrical construction may lead to electric shocks or fire.
• Be sure to install a ground fault circuit interrupter according to local laws and regulations. Failure to install a ground fault circuit interrupter may cause electric shocks and fire.
• Make sure all wiring is secure. Use the specified wires and ensure that terminal connections or wires are protected from water and other adverse external forces. Incomplete connection or affixing may cause a fire.
• When wiring the power supply, form the wires so that the front panel can be securely fastened. If the front panel is not in place there could be overheating of the terminals, electric shocks or fire. After completing the installation work, check to make sure that there is no refrigerant leakage.
• Never directly touch any leaking refrigerant as it could cause severe frostbite.
• Do not touch the refrigerant pipes during and immediately after operation as the refrigerant pipes may be hot or cold, depending on the condition of the refrigerant flowing through the refrigerant piping compressor and other refrigerant cycle parts. Burns or frostbite are possible if you touch the refrigerant pipes.
• To avoid injury, give the pipes time to retur to normal temperature or, if you must touch them, be sure to wear protective gloves,
• Do not touch the internal parts (pump, backup heater, etc.) during and immediately after operation. Touching the internal parts can cause burns.
• To avoid injury, give the internal parts time to return to normal temperature, if you must touch them, be sure to wear protective gloves.

CAUTION

• Ground the unit.
• Grounding resistance should be according to local laws and regulations.
• Do not connect the ground wire to gas or water pipes, lightning conductors or telephone ground wires.
• Incomplete grounding may cause electric shocks.
  • Gas pipes: Fire or an explosion might occur if the gas leaks:
  • Water pipes: Hard vinyl tubes are not effective grounds.
  • Lightning conductors or telephone ground wires: The electrical threshold may rise abnormally if struck by a lightning bolt.
• Install the power wire at least 3 feet (1 meter) away from televisions or radios to prevent interference or noise. (Depending on the radio waves, a distance of 3 feet (1 meter) may not be sufficient to eliminate the noise.)
• Do not wash the unit. This may cause electric shocks or fire. The appliance must be installed according to national wiring regulations.
• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons to avoid a hazard. Do not install the unit in the following places:
  • Where there is a mist of mineral oil, oil spray or vapours. Plastic parts may deteriorate, and cause them to come loose or water to leak.
  • Where corrosive gases (such as sulphurous acid gas) are produced. Where corrosion of copper pipes or soldered parts may cause refrigerant to leak.
  • Where there is machinery that emits electromagnetic waves. Electromagnetic waves can disturb the control system and cause equipment malfunction.
  • Where flammable gases may leak, where carbon fibre or ignitable dust is suspended in the air or where volatile flammables such as paint thinner or gasoline are handled. These types of gases might cause a fire.
  • Where the air contains high levels of salt such as near the ocean.
  • Where voltage fluctuates a lot, such as in factories.
  • In vehicles or vessels
• Where acidic or alkaline vapours are present.

This appliance can be used by children 8 years old and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they are supervised or given instruction on safely using the unit and understand the hazards involved. Children should not play with the unit. Cleaning and user maintenance should not be done by children without supervision. Children should be supervised to ensure that they do not play with the appliance. If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly qualified person.
DISPOSAL:

Do not dispose of this product as unsorted municipal waste. Collection of such waste separately for special treatment is necessary. Do not dispose of electrical appliances as municipal waste, use seperate collection facilities, Contact your local government for Information regarding the collection systems available. If electrical appliances are disposed of in landfills or dumps, hazardous substances can leak into the groundwater and get into the food chain, damaging your health and well-being. The wiring must be performed by professional technicians according to national wiring regulations and this circuit diagram. An all-pole disconnection device that has at least a 3mm separation distance in all poles and a residual current device(RCD) with a rating not exceeding 30mA shall be incorporated in the fixed wiring according to the national rule. Confirm the safety of the installation area (walls, floors, etc. ) without hidden dangers such as water, electricity, and gas, before wiring/pipes Before installation, check whether the user’s power supply meets the electrical installation requirements of unit (including reliable grounding leakage, and wire diameter electrical load, etc. ). If the electrical installation requirements of the product are not met, the installation of the product is prohibited until the product is rectified When installing multiple air conditioners in a centralized manner, please confirm the load balance of the three-phase power supply, and multiple units are prevented from being assembled into the same phase of the three-phase power supply. Product installation should be fixed firmly. Take reinforcement measures, when necessary.

NOTE: About Fluorinated Gasses

• This air-conditioning unit contains fluorinated gasses. For specific information on the type of gas and the amount, please refer to the relevant label on the unit itself. Compliance with national gas regulations shall be observed.
• Installation, service, maintenance and repair of this unit must be performed by a certified technician.
• Product uninstallation and recycling must be performed by a certified technician.
• If the system has a leak-detection system installed, it must be checked for leaks at least every 12 months. When the unit is checked for leaks, proper record-keeping of all checks is strongly recommended

GENERAL INTRODUCTION

• These units are used for both heating and cooling applications and domestic hot water tanks.
• They can be combined with fan coil units, floor heating applications, low-temperature high-efficiency radiators, domestic hot water tanks and solar kits, which are all field supplied.
• A wired controller is supplied with the unit.
• If you choose the built-in backup heater unit, the backup heater can increase the heating capacity during cold outdoor temperatures.
• The backup heater also serves as a backup in case of malfunctioning and for frozen protection of the outside water piping during winter time.

NOTE

• The maximum length of communication wirings between the indoor unit and the controller is 50m.
• Power cords and communication wiring must be laid out separately, they can not be placed in the same conduit. Otherwise, it may lead to electromagnetic interference. Power cords and communication wirings should not come in contact with the refrigerant pipe to prevent the high-temperature pipe from damaging winds.
• Communication wirings must use shielded lines.

1. Heat pump capacity.
2. Required heating capacity (site dependent).
3. Additional heating capacity provided by the backup heater

Domestic hot water tank (field supply)

• A domestic hot water tank(with or without a booster heater) can be connected to the unit.
• The requirement of the tank is different for different units and materials of heat exchanger.
• The booster heater should be installed below the temperature probe
• The heat exchanger (coil) should be installed below the temperature probe.
• The pipe length between the outdoor unit and the tank should be less than 5 meters.
• Room thermostat(field supplied)
• Room thermostat can be connected to the unit(room thermostat should be kept away from heating source when selecting the installation place).
• Solar kit for domestic hot water tank(field supplied)
• An optional solar kit can be connected to the unit.

Operation range

The unit has a freeze-prevention function that uses the heat pump or backup heater (Customized model) to keep the water system safe from freezing all. conditions. Since a power failure may happen when the unit is unattended, It’s suggested to use an anti-freezing flow switch in the water system. (Refer to 9,4″Water piping”)

In cooling mode, the water flowing temperature (TW02) range in different outdoor temperature(Tao) is listed below:

In heating mode, the water flowing temperature (Tw02) ranges in different outdoor temperatures (Tao)) is listed below:

In DHW mode, the water flowing temperature(TW02) range in different outdoor temperature(Tao) is listed below:

ACCESSORIES

Accessories supplied with the unit

Accessories available from the supplier

Thermistor and extension wire for Twt-BT. Twi-FLH and Tsolar can be shared, if these functions are needed at the same time, and 10m in length of the sensor cable please order these thermistors and extension wire additionally.

BEFORE INSTALLATION

• Before installation
  • Be sure to confirm the model name and the serial number of the unit.
• Handling
  • Due to its relatively large dimensions and heavy weight, the unit should only be handled using lifting tools with slings.
  • The slings can be fitted into foreseen sleeves at the base frame that are made specifically for this purpose.
• CAUTION
  • To avoid injury, do not touch the air inlet or aluminium fins of the unit.
  • Do not use the grips in the fan grills to avoid damage.
  • The unit is top-heavy! Prevent the unit from falling due to improper inclination during handling.
  • The position of the barycenter for different units can be seen in the picture below

IMPORTANT INFORMATION FOR THE REFRIGERANT

• This product has fluorinated gas, which is forbidden to be released into the air. Refrigerant type: R32; Volume of GWP: 675. GWP=Global Warming Potential

CAUTION: Frequency of Refrigerant Leakage Checks

• For units that contain fluorinated greenhouse gases in quantities of 5 tonnes of CO2 equivalent or more, but of less than 50 tonnes of CO2 equivalent, at least every 12 months, or where a leakage detection system is installed, at least every 24 months.
• For units that contain fluorinated greenhouse gases in quantities of 50 tonnes of COz equivalent or more, but of less than 500 tonnes of COz equivalent at least every six months, or where a leakage detection system is installed, at least every 12 months.
• For units that contain fluorinated greenhouse gases in quantities of 500 tonnes of CO2 equivalent or more, at least every three months, or where a leakage detection system is installed, at least every six months.
• This air-conditioning unit is a hermetically sealed equipment that contains fluorinated greenhouse gases.
• Only a certificated person is allowed to do installation, operation and maintenance.

INSTALLATION SITE

WARNING

• There is flammable refrigerant in the unit and it should be installed in a well-ventilated site. If the unit is installed inside, an additional refrigerant detection device and ventilation equipment must be added by the standard EN378. Be sure to adopt adequate measures to prevent the unit from being used as a shelter by small animals.
• Small animals making contact with electrical parts can cause malfunction, smoke or fire. Please instruct the customer to keep the area around the unit clean.
• Select an installation site where the following conditions are satisfied and one that meets with your customer’s approval.
• Well-ventilated places
• Places where the unit does not disturb neighbours
• Safe places that can bear the unit’s weight and vibration and where the unit can be installed at an even level.
• Places where there is no possibility of flammable gas or product leak.
• The equipment is not intended for use in a potentially explosive atmosphere.
• Places where servicing space can be well ensured.
• Places where the units’ piping and wiring lengths come within the allowable ranges.
• Places where water leaks from the unit cannot cause damage to the location (e.g. in case of a blocked drain pipe).
• Places where rain can be avoided as much as possible.
• Do not install the unit in places often used as a workspace. In case of construction work (e.g. grinding etc.) where a lot of dust is created, the unit must be covered.
• Do not place any object or equipment on top of the unit (top plate).
• Do not climb. sit or stand on top of the unit.
• Be sure that sufficient precautions are taken in case of refrigerant leakage according to relevant local laws and regulations.
• Don’t install the unit near the sea or where there is corrosion gas.
• When installing the unit in a place exposed to strong wind, pay special attention to the following Strong winds of 5 m/sec or more blowing against the unit’s air outlet cause a short circuit (suction of discharge air), and this may have the following consequences;
• Deterioration of the operational capacity.
• Frequent frost acceleration in heating operation.
• Disruption of operation due to rise of high pressure.
• When a strong wind blows continuously on the front of the unit, the fan can start rotating very fast until it breaks. In normal conditions, refer to the figures below for the installation of the unit.
• In case of strong wind and the wind direction can be foreseen, refer to the figures below for installation of the unit(anyone is OK).
• Turn the air outlet side toward the building’s wall, fence or screen.
• Make sure there is enough room to do the installation. Set the outlet side at a right angle to the direction of the wind.
• Prepare a water drainage channel around the foundation, to drain waste water from around the unit.
• If water does not easily drain from the unit, mount the unit on a foundation of concrete blocks, etc. (the height of the foundation should be about 100 mm (3.93 in).
• If you install the unit on a frame, please install a waterproof plate (about 100 mm) on the underside of the unit to prevent water from coming in from the low side.
• When installing the unit in a place frequently exposed to snow, pay special attention to elevating the foundation as high as possible.
• If you install the unit on a building frame, please install a waterproof tray (field supply) (about 100mm, on the underside of the unit) to avoid drain water dripping. (See the picture in the right).

Selecting a location in cold climates

• Refer to “Handling” in section “4 Before installation”

NOTE

• When operating the unit in cold climates, be sure to follow the instructions described below.
• To prevent exposure to wind, install the unit with its suction side facing the wail.
• Never install the unit at a site where the suction side may be exposed directly to wind,
• To prevent exposure to wind, install a baffle plate on the air discharge side of the unit.
• In heavy snowfall areas, it is very important to select an installation site where the snow will not affect the unit. If lateral snowfall is possible, make sure that the heat exchanger coll is not affected by the snow (if necessary construct a lateral canopy).

1. Construct a large canopy.
2. Construct a pedestal. Install the unit high enough on the ground to prevent it from being buried in snow.

Selecting a location in hot climates

As the outdoor temperature is measured via the outdoor unit air thermistor, make sure to install the outdoor unit in the shade or a canopy should be constructed to avoid direct sunlight, so that it is not influenced by the sun’s heat, otherwise protection may be possible to the unit. enough on the ground to prevent it from being buried in snow.

INSTALLATION PRECAUTIONS

Dimensions

7.2 Installation requirements
Per the foundation drawing in the figure, fix the unit securely employing foundation bolts. (Prepare four sets each of 10Expansion bolts, nuts and washers which are readily available in the market.) Screw in the foundation bolts until their length is 20 mm from the foundation surface.

Drain hole position

NOTE: It’s necessary to install an electrical heating belt if water can’t drain out in cold weather even if the big drain hole has opened.

Servicing space requirements In case of stacked installation

1. In case obstacles exist in front of the outlet side.
2. In case obstacles exist in front of the air inlet.

In case of multiple-row installation (for rooftop use, etc.)

In the case of installing multiple units in lateral connection per row.

TYPICAL APPLICATIONS

Space Heating Only
The room thermostat is used as a switch. When there is a heating request from the room thermostat, the unit operates to achieve the target water temperature set on the Wired controller. When the room temperature reaches the thermostat set temperature, the unit stops. When the heating terminal uses floor heating and Heating radiator at the same time, the two ends of the floor heating and low-temperature radiator require different working water temperatures. To meet these two different working water temperatures at the same time, it is necessary to install a mixing valve and a mixing water pump at the inlet and outlet of the floor heating. The outlet water temperature of the unit is set to the water temperature required by the heating radiator, and the water mixing valve and water mixing pump are set to reduce the inlet water temperature of the floor heating.

Space Heating and Domestic Hot Water
The room thermostats also can connect to a motorized valve. Each room temperature is regulated by the motorized valve on its water circuit. Domestic hot water is supplied from the domestic hot water tank connected to the hydraulic module. The water tank should be built in a temperature sensor that connects to the hydraulic module, A bypass valve is required.

Space Heating, Space Cooling and Domestic Hot Water
Floor heating loops & Heating radiators & Fan coil units are used for space heating. fan coil units are used for space cooling. Domestic hot water is supplied from the domestic hot water tank connected to the hydraulic module. The unit switches to heating or cooling mode according to the temperature detected by the room thermostat. In space cooling mode, the 2way valve is closed to prevent cold water entering the fioor heating loops & Heating radiator.

Space Heating and Space Cooling
Floor heating loops & Heating radiators & fan coil units are used for space heating, and fan coil units are used for space cooling. In space cooling mode, the 2way valve is closed to prevent cold water from entering the floor heating loops & Heating radiator.

Auxiliary heat source provides space heating only
Users can also use only gas water heaters for heating.

Space Heating Through Floor Heating Loops and Fan Coil Units
The floor heating loops and fan coll units require different operating water temperatures. To achieve these two set points, a mixing station is required. Room thermostats for each zone are optional. The outlet water temperature of the unit is set to the water temperature required by the fan coil unit, and the mixing valve and mixing pump are set to reduce the inlet water temperature of the floor heating.

Space Heating, Space Cooling and Domestic Hot Water Compatible with Solar Water Heater
Floor heating loops & Heating Radiators &fan coil units are used for space heating, and fan coil units are used for space cooling. The temperature in the domestic hot water tank is controlled by the hydraulic module. A temperature sensor needs to be placed in the domestic hot water tank and connected to the hydraulic module. When it is detected that the temperature of the domestic hot water tank is lower than the set temperature and meets the requirements for solar hot water activation When conditions are met, turn on the solar water pump to realize the solar hot water function.

Space Heating with heat pump and AHS, space cooling with heat pump and solar for hot water
When the heating is insufficient, the gas boiler (AHS) is used as an additional heat source, and floor heating or fan cois or low-temperature radiators are used for space heating (also can be used in combination with various types of terminals), The fan coil is used for space cooling. The temperature in the domestic hot water tank is controlled by the hydraulic module. A temperature sensor needs to be placed in the domestic hot water tank and connected to the hydraulic module. When it is detected that the temperature of the domestic hot water tank is lower than the set temperature and meets the requirements for solar hot water activation When conditions are met, turn on the solar water pump to realize the solar hot water function.

CAUTION

• Make sure to connect the 3MV1/2MV/3MV2 terminals in the wired controller correctly please refer to 9.3

The Balance tank volume requirement

OVERVIEW OF THE UNIT

Disassembling the unit
Door 1 To access the compressor and electrical parts.

WARNING
Switch off all power — i.e. unit power supply backup heater and domestic hot water tank power supply (if applicable) – before removing door 1.
Parts inside the unit may be hot.

Main components Hydraulic module

Electronic control box
The figure is only for reference, please refer to the actual product.

8~16kW(1-phase)

12-16kW(3-phase)

Specifications of standard wiring components
Equipment main Power Supply Wiring

• Stated values are maximum values (see electrical data for exact values).

CAUTION

• When connecting to the power supply terminal, use the circular wiring terminal with the insulation casing (see Figure 8.1).
• Use a power cord that conforms to the specifications and connect the power cord firmly. To prevent the cord from being pulled out by external force, make sure it is fixed securely.

NOTE: The ground fault circuit interrupter must be a high-speed type breaker of 30 mA (<0.1 s). The flexible cord must meet 60245IEC(HOSVV-F) standards.
Connection for other components
The port provides the signal with 220V voltage. If the current of the load is < 0.2A load can connect to the port directly. If the current of the load is 0.2A, the AC contactor is required to connect to the load.

1. For solar energy input signal

2. For 3-way value 3WV1, 2W. 3WV2 and Solar pump

   • a)Procedure: Connect the cable to the appropriate terminals as shown in the picture. Fix the cable reliably.
   • 3WV1: Motorized 3way valve
   • 2WV: Two-way valve
   • 3WV2: Mixing valve

3. For Zone1 pump and DHW pipe pump:

   • Zone1 pump External circulation pump:
   • KM4: Zone1 pump AC Contactor4
   • KM5: DHW pipe pump AC Contactor5

4. For tank booster heater:

5. For zone2 pump and additional heat source control:

   • Zone2 pump: Mixing valve
   • KM9: Zone2 pump AC Contactor9
   • Additional heat source control: AHS
   • KM10: additional heat source control AC Contactor10
   • WARNING: This part only applies to Basic. For Customized, cause there’s an interval backup heater in the unit, the indoor unit should not be connected to any additional heat source.

6. For smart grid:

7. The unit has a smart grid function, there are two ports on the PCB to connect the SG signal and EVU signal as follows:

8. when the EVU signal is on, the unit operates as below: DHW mode is turned on, the setting temperature will be changed to 70°C automatically, and the TBH operate as below. T5<69. the TBH is on, T5270, the TBH is off. The unit operates in cooling/heating mode as the normal logic.

9. When the EVU signal is off, and the SG signal is on, the unit operates normally.
   When the EVU signal is off. SG signal is off. the DHW mode is off, and the TBH is invalid, the disinfect function is invalid. The max running time for cooling/heating is “SG RUNNIN TIME”, then the unit will be off.

10. Room Thermostat(Low Voltage)

11. Room Thermostat(High Voltage) ****

12. For modbus

Water piping

• All piping lengths and distances have been taken into consideration.

NOTE

• If no glycol is in the system, in case of a power supply failure or pump operating failure, drain all the water system if the water temperature is below O’C in the cold winter (as suggested in the figure below figure 1).
• When water is at a standstill inside the system, freezing is very likely to happen and damage the system in the process.

Check the water circuit

• The unit is equipped with a water inlet and water outlet for connection to a water circuit. This circuit must be provided by a licensed technician and must comply with local laws and regulations.
• The unit is only to be used in a closed-water system. Application in an open water circuit can lead to excessive corrosion of the water piping

Before continuing the installation of the unit, check the following:

• The maximum water pressure is ≤ 3 bar.
• The maximum water temperature ≤ 70°C according to safety device setting
• Enare that contained Lara cod in the held rang an instant he sinor Prague anger used in the unit
• Arenas mussie provide at allian, points of the system. The veits should be located at points dare maintenance. accessible for service. An automatic air purge is provided inside the unit. Check that this air purge valve is not tightened so that automatic release of air in the water circuit is possible.

Water volume and sizing expansion vessels
The units are equipped with an expansion vessel of 8L that has a default pre-pressure of 1.5 bar. To ensure proper operation of the unit, the pre- pressure of the expansion vessel might need to be adjusted.

• Check that the total water volume in the installation, excluding the internal water volume of the unit, is at least 40L. See 14 “Technical specifications” to find the total internal water volume of the unit.

NOTE

• In most applications, this minimum water volume will be satisfactory.
• In critical processes or rooms with a high heat load though, extra water might be required.
• When circulation in each space heating loop is controlled by remotely controlled valves, this minimum water volume must be kept even if all the valves are closed.
• Expansion vessel volume must fit the total water system volume.
• To size the expansion for the heating and cooling circuit.

Water circuit connection

• Water connections must be made correctly concerning the water inlet and water outlet.

CAUTION

• Be careful not to deform the unit’s piping by using excessive force when connecting the piping. Deforming the piping can cause the unit to malfunction.

If air, moisture or dust gets in the water circuit, problems may occur. Therefore, always take into account the following when connecting the water circuit:

• Use clean pipes only.
• Hold the pipe end downwards when removing burrs.
• Cover the pipe end when inserting it through a wall to prevent dust and dirt from entering
• Use a good thread sealant for sealing the connections. The sealing must be able to withstand the pressures and temperatures of the system.
• When using non-copper metallic piping, be sure to insulate two kinds of materials from each other to prevent galvanic corrosion.
• As copper is a soft material, use appropriate tools for connecting the water circuit. Inappropriate tools will cause damage to the pipes.

NOTE

• The unit is only to be used in a closed-water system. Application in an open water circuit can lead to excessive corrosion of the water piping:
• Never use n-coated parts in the water circuit. Excessive corrosion of these parts may occur as copper piping is used in the unit’s internal water circuit.
• When using a 3-way valve in the water circuit. Preferably choose a ball-type 3-way valve to guarantee full separation between the domestic hot water and floor heating water circuit.
• When using a 3-way valve or a 2-way valve in the water circuit. The recommended maximum changeover time of the valve should be less than 60 seconds.

Water circuit anti-freeze protection

• All internal hydronic parts are Insulated to reduce heat loss. Insulation must also be added to the field piping.
• The software contains special functions using the heat pump and backup heater (if it is available) to protect the entire system against freezing. When the temperature of the water flow in the system drops to a certain value, the unit will heat the water, either using the heat pump, the electric heating tap, or the backup heater. The freeze protection function will turn off only when the temperature increases to a certain value.
• In event of a power failure, the above features would not protect the unit from freezing.

CAUTION

• When the unit is not running for a long time make sure the unit is powered on all the time, if you want to cut off the power, the water in the system pipe needs to be drained clean, avoid the pump and pipeline system be damaged by freezing. Also the power of  the unit needs to be cut off after water in the system is drained clean.
• Water may enter into the flow switch and cannot be drained out and may freeze when the temperature is low enough. The flow switch should be removed and dried, then can be reinstalled in the unit.

NOTE

1. Counterclockwise rotation, remove the flow switch.
2. Drying the flow switch completely.

Filling water

• Connect the water supply to the filling valves and open the valve.
• Make sure all the automatic air purge valves are open (at least 2 turns).
• Filling with water until the manometer indicates a pressure of approximately 2.0bar. Remove air in the circuit as much as possible using the automatic air purge valves.

NOTE

• During filling, it might not be possible to remove all air in the system. The remaining air will be removed through the automatic bleed valve during the first operating hours of the system. Topping up the water afterwards might be required.
• The water pressure indicated on the manometer will vary depending on the water temperature (higher pressure at higher water temperature). However, at all times water pressure should remain above 0.3 bar to avoid air entering the circuit.
• The unit might drain off too much water through the pressure relief valve.
• Water quality should comply with EN 98/83 EC Directives.
• Detailed water quality conditions can be found in EN 98/83 EC Directives.

Water piping insulation

• The complete water circuit including all piping, and water piping must be insulated to prevent condensation during cooling during winter. The insula in the material should aleast or re a resistance rating and comply of the lape water piping legislation. The thickness of the sealing materials must be at least 13 mm with a thermal conductivity of 0.039 W/mK to prevent freezing on the outside water piping.
• If the outdoor ambient temperature is higher than 30°C and the humidity is higher than RH 80%, then the thickness of the sealing materials should be at least 20 mm to avoid condensation on the surface of the seal.

Field wiring

WARNING

• A main switch or other means of disconnection, having a contact separation in all poles, must be incorporated in the fixed wiring by relevant local laws and regulations. Switch off the power supply before making any connections.
• Use only copper wires. Never squeeze bundled cables and make sure they do not come in contact with the piping and sharp edges. Make sure no external pressure is applied to the terminal connections. All field wiring and components must be installed by a licensed electrician and must comply with relevant local laws and regulations.
• The field wiring must be carried out by the wiring diagram supplied with the unit and the instructions given below.
• Be sure to use a dedicated power supply. Never use a power supply shared by another appliance.
• Be sure to establish a ground. Do not ground the unit to a utility pipe, surge protector, or telephone ground. Incomplete grounding may cause electrical shock.
• Be sure to install a ground fault circuit interrupter (30 mA). Failure to do so may cause electrical shock.
• Be sure to install the required fuses or circuit breakers.

Precautions on electrical wiring work

• Fix cables so that cables do not make contact with the pipes (especially on the high-pressure side).
• Fix the wire with cable ties so that it will not contact the pipe, especially on the high-voltage side.
• Make sure no external pressure is applied to the terminal connectors.
• When installing the ground fault circuit interrupter make sure that it is compatible with the inverter (resistant to high frequency electrical noise) to avoid unnecessary opening of the ground fault circuit interrupter.

NOTE

• The ground fault circuit interrupter must be a high-speed type breaker of 30 mA (< 0.1 s).
• This unit is equipped with an inverter. Installing, a phase-advancing capacitor not only will reduce the power factor improvement effect but also may cause abnormal heating of the capacitor due to high-frequency waves. Never install a phase-advancing capacitor as it could lead to an accident.

Wiring overview
Loads requiring field wiring. Refer also to “B typical application”.

• (a) Minimum cable section AWG18 (0.75 mm2).
• (b) The thermistor cable is delivered with the unit: if the current of the load is large, an AC contactor is needed.

NOTE

• Please use HO7RN-F for the power wire, all the cables are connected to high voltage except for the thermistor cable and cable for the user interface.
• Equipment must be grounded.
• All high-voltage external loads, if it is metal or a grounded port, must be grounded.
• All external load current is needed less than 0.2A, if the single load current is greater than 0.2A, the load must be controlled through AC contactor.
• Plate heat exchanger E-Heating tape and Flow switch E-Heating tape share a control port. Field wiring guidelines.
• Must vote since be service is made on the terminal block inside the switch box. To gain access to the terminal block,

WARNING

• Switch off all power including the unit power supply backup heater and domestic hot water tank power supply (if applicable) before removing the switch box service panel.
• Fix all cables using cable ties.
• A dedicated power circuit is required for the backup heater.
• Installations equipped with a domestic hot water tank (field supply) require a dedicated power circuit for the booster heater, Please refer to the domestic hot water tank Installation & Owner’s Manual.
• Lay out the electrical wiring so that the front cover does not rise when doing wiring work and attach the front cover securely.
• Follow the electric wiring diagram for electrical wiring works (the electric wiring diagrams are located on the rear side of door 2.
• Install the wires and fix the cover firmly so that the cover may fit in properly.

Precautions on wiring of power supply

• Use a round crimp-style terminal for connection to the power supply terminal board. In case it cannot be used due to unavoidable reasons, be sure to observe the following instructions.
  • Do not connect different gauge wires to the same power supply terminal.(Loose connections may cause overheating.)
• Use the correct screwdriver to tighten the terminal screws. Small screwdrivers can damage the screw head and prevent appropriate tightening.
• Over-tightening the terminal screws can damage the screws.
• Attach a ground fault circuit interrupter and fuse to the power supply line.
• In wining, make certain that prescribed wires are used, carry out complete connections, and fix the wires so that outside force cannot affect the terminals.

Safety device requirements

1. Select the wire diameters (minimum value) individually for each unit based on the table below.
2. Select circuit breaker that having a contact separation in all poles not less than 3 mm providing full disconnection, where MA is used to select the current circuit breakers and residual current operation breakers:

NOTE

• MCA: Max. Circuit Amps.(A)
• MFA: MAX. Fuse Amps.(A)
• WPM: Water Pump Motor
• FLA: Full Load Amps. (A)

A creepage circuit breaker above the maximum current must be installed to avoid possible electric shocks.

START-UP AND CONFIGURATION

• The unit should be configured by the installer to match the installation environment (outdoor climate, installed options, etc.) and user expertise.

CAUTION

• It is important that all information in this chapter is read sequentially by the installer and that the system is configured as applicable.

Initial start-up at low outdoor ambient temperature

• During initial start-up and when the water temperature is low, the water must be heated gradually.
• Failure to do so may result in concrete floors cracking due to rapid temperature change. Please contact the responsible cast concrete building contractor for further details.
• To do so, the lowest water flow set temperature can be decreased to a value between 25°C and 35°C by adjusting the FOSERVICEMAN. Refer to SPECIAL FUNCTION.

Pre-operation checks

• Checks before initial start-up.

DANGER

• switch the power supply before making any connections.
• After the installation of the unit, check the following before switching on the circuit breaker;
• Field wiring: Make sure that the field wiring between the local supply panel and unit and valves (when applicable), unit and room thermostat (when applicable), unit and domestic hot water tank, and unit and backup heater Kit have been connected according to the instructions described in chapter 9.8 “Field wiring”, according to the wiring diagrams and local laws and regulations.
• Fuses, circuit breakers, or protection devices Check that the fuses or the locally installed protection devices are of the size and type specified in 14 “Technical specifications”. Make sure that no fuses or protection devices have been bypassed
• Backup heater circuit breaker: Do not forget to turn on the backup heater circuit breaker in the switch box (it depends on the backup heater type). Refer to the wiring diagram.
• Booster heater circuit breaker: Do not forget to turn on the booster heater circuit breaker (applies only to units with an optional domestic hot water tank installed).
• Ground wiring: Make sure that the ground wires have been connected properly and that the ground terminals are tightened
• Internal wiring: Visually check the switch box for loose connections or damaged electrical components.
• Mounting: Check that the unit is properly mounted, to avoid abnormal noises and vibrations when starting up the unit. Regera duck ent Chee the inside hit unit for ran lea ago, ments o squeera leak, call your local dealer.
• Power supply voltage: Check the power supply voltage on the local supply panel. The voltage must correspond to the voltage on the identification label of the unit.
• Air purge valve: Make sure the air purge valve is open (at least 2 turns). Shut-off valves: Make sure that the shut-off valves are fully open.

TEST RUN AND FINAL CHECKS

• The installer is obliged to verify the correct operation of the unit after installation.

Final checks

• Before switching on the unit, read the following recommendations:
• When the complete installation and all necessary settings have been carried out, close all front panels of the unit and refit the unit cover.
• The service panel of the switch box may only be opened by a licensed electrician for maintenance purposes,
• Note: hat during the first running period of the unit, the required power input may be higher than stated on the nameplate of the unit.
• This phenomenon originates from the compressor that needs an elapse of a 50-hour run-in period before reaching smooth operation and stable power consumption.

Test run operation (manually)

• If required, the installer can perform a manual test run operation at any time to check the correct operation of air purge, heating, cooling and domestic water heating.

MAINTENANCE AND SERVICE

• To ensure optimal availability of the unit, several checks and inspections on the unit and the filed wiring have to be carried out at regular intervals.
• This maintenance needs to be carried out by your local technician.
• To ensure optimal availability of the unit, several checks and inspections on the unit and the field wiring have to be carried out at regular intervals.
• This maintenance has to be carried out by your local technician.

DANGER Electric Shock

• Do not touch any of it am tor 10 mine es ater the positive sust sture the power supply on the supply panel. any live part for 10 minutes after the power
• The crank heater of the compressor may operate even on standby.
• Please note that some sections of the electric component box are hot.
• Forbid touch any conductive parts.
• Forbid rinse the unit. It may cause electric shock or fire. Forbid leave the unit unattended when the service panel is removed.

The following checks must be performed at least once a year by a qualified person:

• Water pressure
  • Check the water pressure, if it is below 1 bar, fill water to the system.
• Water filter
  • Clean the water filter.
• Water pressure relief valve
  • Check for correct operation of the pressure relief valve by turning the black knob on the valve counter-clockwise:
  • If you do not hear a clicking sound, contact your dealer.
  • In case the water keeps running out of the unit, close both the water inlet and outlet shut-off valves first and then contact your local dealer.
• Pressure relief valve hose
  • Check that the pressure relief valve hose is positioned appropriately to drain the water.
• Backup heater vessel insulation cover Check that the backup heater insulation cover is fastened tightly around the backup heater vessel.
• The domestic hot water tank pressure relief valve (filed supply)Applies only to installation with a domestic hot water tank Check for correct operation of the pressure relief valve on the domestic hot water tank.
•  Domestic hot water tank booster heater Applies only to installations with a domestic hot water tank. It is advisable to remove lime buildup on the booster heater to extend its life span, especially in regions with hard water. To do so, drain the domestic hot water tank, remove the booster heater from the domestic hot water tank and immerse in a bucket(or similar)with lime-removing product for 24 hours.
• Unit switch box
  • Carry out a thorough visual inspection of the switch box and look for obvious defects such as loose connections or defective wiring.
  • Check for correct operation of contactors with an ohm meter, All contacts of these contactors must be in open position.
  • Use of glycol(Refer to 9,5.4″Water circuit anti-freeze protection”) Document the glycol concentration and the pH valve in the system at least once a year.
  • A PH-value below 8.0 indicates that a significant portion of the inhibitor has been depleted and that more inhibitor needs to be added.
  • When the PH-value is below 7.0 then oxidation of the glycol occurs, the system should be drained and flushed thoroughly before severe damage occurs.
  • Make sure that the disposal of the glycol solution is done by relevant local laws and regulations.

TROUBLESHOOTING

• This section provides useful information for diagnosing and correcting certain troubles which may occur in the unit.
• This troubleshooting and related corrective actions may only be carried out by your local technician.

General guidelines

• Before starting the troubleshooting procedure, carry out a thorough visual inspection of the unit and look for obvious defects such as loose connections or defective wiring.

WARNING

• When inspecting the switch box of the unit, always make sure that the main switch of the unit is switched off.
• When a safety device is activated, stop the unit and find out why the safety device was activated before resetting it. Under one circumstance can safety devices be bridged or changed to a valve other than the factory setting? If the cause of the problem cannot be found, call your local dealer.
• If the pressure relief valve is not working correctly and is to be replaced, always reconnect the flexible hose attached to the pressure relief valve to avoid dripping out of the unit!
• Note: For problems related to the optional solar kit for domestic water heating, refer to the troubleshooting in the Installation and Owner’s manual for that kit.

General Symptoms

• Symptom 1: The unit is turned on but the unit is not heating or cooling as expected

Error codes

• When a safety device is activated, an error code will be displayed on the user interface.
• A list of all errors and corrective actions can be found in the table below.
• Reset the safety by turning the unit OFF and back ON.
• In case this procedure for resetting the safety is not successful, contact your local dealer.

CAUTION

• In winter, if the unit fails and the unit is not repaired in time, the water pump and pipeline system may be damaged by freezing, so failure must be repaired in time.

TECHNICAL SPECIFICATIONS

General

Electrical specifications

MAINTENANCE NOTICE Attention:

• For maintenance or scrap, please contact authorized service centres. Maintenance by an unqualified person may cause dangers.
• Feed the air conditioner with R32 refrigerant, and maintain the air conditioner in strict accordance with the manufacturer’s requirements. The chapter is mainly focused on special maintenance requirements for appliances with R32 refrigerant.
• Ask the repairer to read the after-sales technical service handbook for detailed information.

Qualification requirements of maintenance personnel

1. Special training addition to usual refrigerating equipment repair procedures is required when equipment with flammable refrigerants is affected. In many countries, this training is carried out by national training organisations that are accredited to teach the relevant national competency standards that may be set in legislation. The achieved competence should be documented by a certificate.
2. The maintenance and repair of the air conditioner must be conducted according to the method recommended by the manufacturer. If other professionals are needed to help maintain and repair the equipment, it should be conducted under the supervision of individuals who qualify to repair ACs equipped with flammable refrigerant.

Inspection of the Site

• A safety inspection must be taken before maintaining equipment with R32 refrigerant to make sure the risk of fire is minimized. Check whether the place is well-ventilated and whether anti-static and fire prevention equipment is perfect.
• While maintaining the refrigeration system, observe the following precautions before operating the system.

Operating Procedures

1. 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.
2. Checking for the presence of refrigerant:
   • The area shall be checked with an appropriate refrigerant detector before and during work, to ensure the technician is aware of potentially toxic or flammable atmospheres. Ensure that the leak detection equipment being used is suitable for use with all applicable refrigerants, no-sparking, adequately sealed or intrinsically safe.
3. 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 COz fire extinguisher adjacent to the charging area.
4. No ignition sources:
   • No person carrying out work on a refrigeration system that involves exposing any pipe work 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, repair, removal and disposal, during which refrigerant can be released into the surrounding space. Before work takes place, the area around the equipment is to be surveyed to make sure that no flammable hazards or ignition risks are Smoking’ signs shall be displayed
5. Ventilated Area(open the door and window);
   • 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.
6. 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 following 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.
   • Refrigeration pipes or components are installed in a position where they are unlikely to be exposed to any substance that 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.
7. Checks to electrical devices:
   • Repair and maintenance of 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 safely to avoid the possibility of sparking.
   • Keep Conte July of earcom contents and wining are exposed while charging, recovering or purging the system.
   • Keep continuity of earthing.

Inspection of Cable

• Check the cable for wear, corrosion, overvoltage, and vibration and check if there are sharp edges and other adverse effects in the surrounding environment. During the inspection, the impact of aging or the continuous vibration of the compressor and the fan on it should be taken into consideration.

Leakage check of R32 refrigerant

• Note: Check the leakage of the refrigerant in an environment where there is no potential ignition source. No halogen probe once grant an environmental (or any other detector that uses an open flame) should be used.

Leak detection method:

• For systems with refrigerant R32, an electronic leak detection instrument is available, and leak detection should not be conducted in an environment with refrigerant. Make sure the leak detector will not become a potential source of ignition and applies to the measured refrigerant. The leak detector shall be set for the minimum ignitable fuel concentration (percentage) of the refrigerant. Calibrate and adjust to proper gas concentration (no more than 25%) with the used refrigerant.
• The fluid used in leak detection applies to most refrigerants. However, do not use chloride solvents to prevent the reaction between chlorine and refrigerants and the corrosion of copper pipelines.
• If you suspect a leak, then remove all the fire from the scene or put out the fire.
• If the location of the leak needs to be welded, then all refrigerants need to be recovered or isolate all refrigerants away from the leak site (using a cut-off valve). Before and during the welding, use OFN to purify the entire system.

Removal and Vacuum Pumping

1. Make sure there is no ignited fire source near the outlet of the vacuum pump and the ventilation is well.
2. The maintenance and other operations of the refrigeration circuit should be carried out according to the general procedure, but the following best operations that the flammability is already taken into consideration are the key. You should follow the following procedures:
3. The refrigerant should be returned to the appropriate storage tank. The system should be blown with oxygen-free nitrogen to ensure safety. This process may need to be repeated several times. This operation shall not be carried out using compressed air or oxygen.
4. Through the blowing process, the system is charged into the anaerobic nitrogen to reach the working pressure under the vacuum state, then the oxygen-free nitrogen is emitted to the atmosphere, and in the end, vacuum the system.
   Discharge the gas into the almosphere pre sure, are i clear sy After the be chard. Tos operation is necessary for welding the pipeline.

Procedures for Charging Refrigerants

• As a supplement to the general procedure, the following requirements need to be added:
  • Make sure that there is no contamination among different refrigerants when using a refrigerant charging device.
  • The pipeline for charging refrigerants should be as short as possible to reduce the residual of refrigerants in it.
  • Storage tanks should remain vertically up
  • Make sure the grounding solutions are already taken before the refrigeration system is charged with refrigerants.
  • After finishing the charging (or when it is not yet finished), label the mark on the system.
  • Be careful not to overcharge refrigerants.

Scrap and Recovery

Scrap: Before this procedure, the technical personnel shall be thoroughly familiar with the equipment and all its features, and make a recommended practice for refrigerant safe recovery. For recycling the refrigerant, shall analyze the refrigerant and oil samples before operation. Ensure the required power before the test.

1. Be familiar with the equipment and operation.
2. Disconnect the power supply.
3. Before carrying out this process, you have to make sure:
   • If necessary, mechanical equipment operation should facilitate the operation of the refrigerant tank.
   • All personal protective equipment is effective and can be used correctly.
   • The whole recovery process should be carried out under the guidance of qualified personnel.
   • The recovery of equipment and storage tanks should comply with the relevant national standards.
4. If possible, the refrigerating system should be vacuumed.
5. If the vacuum state can’t be reached, you should extract the refrigerant in each part of the system from many places.
6. Before the start of the recovery, you should ensure that the capacity of the storage tank is sufficient.
7. Start and operate the recovery equipment according to the manufacturer’s instructions.
8. Don’t fill the tank to its full capacity (the liquid injection volume does not exceed 80% of the tank volume).
9. Even if the duration is short, it must not exceed the maximum working pressure of the tank.
10. After the completion of the tank filling and the end of the operation process, you should make sure that the tanks and equipment are removed quickly and that all closing valves in the equipment are closed.
11. The recovered refrigerants are not allowed to be injected into another system before being purified and tested.
    • Note: The identification should be made after the appliance is scrapped and refrigerants are evacuated. The identification should contain the date and endorsement. Make sure the identification on the appliance can reflect the flammable refrigerants contained in this appliance.

Recovery:

1. The clearance of refrigerants in the system is required when repairing or scrapping the appliance, It is recommended to completely remove the refrigerant.
2. Only a special refrigerant tank can be used when loading the refrigerant into the storage tank. Make sure the capacity of the tank is appropriate to the refrigerant injection quantity in the entire system. All tanks intended to be used for the recovery of refrigerants should have a refrigerant identification (refrigerant recovery tank). Storage tanks should be equipped with pressure relief valves and globe valves and they should be in good condition. If possible, empty tanks should be evacuated and maintained at room temperature before use.
3. The recovery equipment should be kept in good working condition and equipped with equipment operating instructions for easy access. The equipment should be suitable for the recovery of R32 refrigerants. Besides, there should be a qualified weighing apparatus that can be normally used. The hose should be linked with a detachable connection joint of zero leakage rate and be kept in good condition. Before using the recovery equipment, check if it is in good condition and if it gets perfect maintenance. Check if the electrical components are sealed to prevent the leakage of the refrigerant and the fire caused by it. If you have any questions, please consult the manufacturer.
4. The recovered refrigerant shall be loaded in the appropriate storage tanks, attached with a transporting instruction, and returned to the refrigerant manufacturer. Don’t mix refrigerant in recovery equipment, especially a storage tank.
5. The space loading R32 refrigeration can’t be enclosed in the process of transportation. Take anti-electrostatic measures if necessary in transportation. In the process of transport, loading and unloading, necessary protective measures must be taken to protect the air conditioner to ensure that the air conditioner is not damaged
6. When removing the compressor or clearing the compressor oil, make sure the compressor is pumped to an appropriate level to ensure that there are no residual R32 refrigerants in the lubricating oil. The vacuum pumping should be carried out before the compressor is returned to the supplier. Only the electrical heating method for heating the compressor housing is allowed to speed up the process. Ensure safety when discharging oil from the system.

DE-COMMISSIONING, DISMANTLING & DISPOSAL

This product contains refrigerant under pressure, rotating parts, and electrical connections which may be a danger & cause injury All work must only be carried out by competent persons using suitable protective clothing and safety precautions.

1. Isolate all sources of electrical supply to the unit including any control system supplies switched by the unit. Ensure that all points of electrical and gas isolation are secured in the OFF position. The supply cables and gas pipework may then be disconnected and removed. For points of connection refer to unit installation instructions.
2. Remove all refrigerant from each system of the unit into a suitable container using a refrigerant reclaim or recovery unit. This refrigerant may then be reused, if appropriate, or returned to the manufacturer for disposal. Under NO circumstances should refrigerant be vented to the atmosphere where appropriate, drain the refrigerant oil from each system into a suitable container and dispose of it according to local laws and regulations governing the disposal of oily wastes.
3. Packaged units can generally be removed in one piece after disconnection as above. Any fixing down bolts should be removed and then the unit lifted from a position using the points provided and equipment of adequate lifting capacity. Reference MUST be made to the unit installation instructions for unit weight and correct methods of lifting. Note that any residual or spilt refrigerant oil should be mopped up and disposed of as described above.
4. After removal from position, the unit parts may be disposed of according to local laws and regulations.
5. Meaning of crossed-wheeled dustbin: Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities. Contact your local government for information regarding the collection systems available. If electrical appliances are disposed of in landfills or dumps, hazardous substances can leak into the groundwater and get into the food chain, damaging your health and well-being. When replacing old appliances with new ones, the retailer is legally obligated to take back your old appliance for disposal at least free of charge.
   • 1166 North Mingguang Road, Jiangshan, Yinzhou,
   • Ningbo, 315191 Zhejiang, China
   • For your convenience, please read this statement carefully, per the specification steps.
   • Please safely keep this manual for inspection. 16437005000707

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