Air-to-water Heat Pump

Transcription

1 Change for life Air-to-water Heat Pump Monobloc Versati Owner's Manual Air Conditioners Thank you for choosing our air conditioners. Please read this Owner s Manual carefully before operation and retain it for future reference. If you have lost the Owner's Manual, please contact the local agent or visit www. gree.com or send an to global@gree.com.cn for the electronic version.

2 Contents Instruction to Users... Safety Considerations... 3 Diagram of the Operating Principle...5 Operating Principle of the Unit omenclature Installation Example Main Components... 8 Installation Guideline of the Unit Remote Air Temperature Sensor Thermostat...8 -Way Valve Way Valve Wired Controller...0 Other Auxiliary Heat Sources Gate-controller Charging and Discharging of Refrigerant... 7 Installation of Insulated Water Tank... 8 Wring Diagram Commissioning Daily Operation and Maintenance...38

3 Instruction to Users Thank you for choosing our air to water heat pumps. Please read this manual carefully before installation and use the unit correctly according to the following procedure. After receipt of the unit, check it for appearance, unit model compared with your desire and attachments. For proper installation and future maintenance please read this Instruction and keep it carefully. Design and installation work of the unit must be performed by authorized personnel according to applicable laws and regulations and this Instruction. After installation work, the unit cannot be energized unless there is not any problem in check. Ensure periodical clean and maintenance of the unit after normal operation of the unit for longer life and reliable operation. For improvement of products, there should be not additional notice of amendment of the contents. otice! 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. R0A(R3/5:50/50):087.5 Correct Disposed of this product This marking indicates that this product should not be disposed with other household wastes throughout the EU.To prevent possible harm to the environment or human health from uncontrolled waste disposal,recycle it responsibly to promote the sustainable reuse of material resources. To retuern your used device,please use the return and collection systems or contact the retailer where the product was purchased. They can take this product for environmental safe recycling. 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.

4 Safety Considerations Please read the following contents carefully before operating. WARIG Once abnormality like burning smell occurs, please cut off the power supply immediately and then contact with service center. Don't operate the unit with wet hand. Before installation,please see if the voltage of local place accords with that on nameplate of unit and capacity of power supply, power cord or socket is suitable for input power of this unit. If the abnormality still exists, the unit may be damaged and electric shock or fire may result. Special circuit must be adopted for power supply to prevent fire. Otherwise, it may cause electric shock. Be sure to pull out the power plug and drain the unit and water tank when unit is not in use for a long time. ever damage the electric wire or use the one which is not specified. Do not use octopus multipurpose plug or mobile terminal board for wire connection. Before cleaning please cut off the power supply. Otherwise, the accumulated dust may cause overheating,fire or freeze of water tank or coaxial heater exchanger in winter. The power supply must adopt special circuit with leakage switch and enough capacity. Otherwise, it may cause overheating or fire. User can not change power cord socket without prior consent. Wiring working must be done by professionals. Ensure good earthing and don't change earthing mode of unit. Otherwise, it may cause electric shock or damage.

5 Earthing: the unit must be earthed reliably! The earthing wire should connect with special device of buildings. ever insert any foreign matter into uint to avoid damage. And never insert your hands into the air outlet of the unit. Don't attempt to repair the unit by yourself. If not, please ask the qualified personnel to install. Furthermore, don't connect earth wire to gas pipe, water pipe, drainage pipe or any other improper places which professional does not recognize. Don't step on the top of the unit or place anything on it. ever block the air inlet and outlet of unit. Improper repair may cause electric shock or fire, so you should contact the service center to repair. Keep pressurized spray, gas holder and so on away from the unit above m. There is the danger of fall of things or people. Please note whether the installation stand is firm enough or not. It may reduce efficiency or cause stop of the unit and even fire. Unit should be installed at the place with good ventilation to save energy. It may cause fire or explosion. When there is not water in water tank, never power the unit on to run. If damaged, it may cause fall of the unit and injury of people. otice! () Before installation, please check if the adopted power is accordance with that listed on nameplate, and check the safety of power. () Before using, please check and confirm if wires and water pipes are connected correctly to avid water leakage, electric shock or fire etc. (3) Don t operate the unit with wet hand, and don t allow children to operate the unit. 3

6 () The On/off in the instruction is for the operation to on and off button of PCB for users; cut off power means to stop supplying power to the unit. (5) Don t directly expose the unit under the corrosive ambient with water or dampness. (6) Don t operate the unit without water in water tank.the air outlet/inlet of unit can not be blocked by other objects. (7) The water in unit and pipeline should be discharged if the unit is not in use, to prevent the water tank, pipe line and water pump from frost-cracking. (8) ever press the button with sharp objects to protect manual controller. ever use other wires instead of special communication line of the unit to protect control elements. ever clean the manual controller with benzene, thinner or chemical cloth to avoid fading of surface and failure of elements. Clean the unit with the cloth soaked in neutral eradicator.slightly clean the display screen and connecting parts to avoid fading. (9) The power cord must be separated with the communication line. (0) maximum and minimum water operating temperatures. Item Minimum water operating temperatures Maximum water operating temperatures Cooling 7 C 5 C Heating 5 C 60 C Water heating 0 C 80 C maximum and minimum water operating pressures. Item Minimum water operating pressures Maximum water operating pressures Cooling Heating Water heating 0.05MPa 0.5MPa maximum and minimum entering water pressures. Item Minimum entering water pressures Maximum entering water pressures Cooling Heating Water heating 0.05MPa 0.5MPa the range of external static pressures at which the appliance was tested (add-on heat pumps, and appliances with supplementary heaters,only);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 is intended to be permanently connected to the water mains and not connected by a hose-set. If there is any question, please contact with local dealer, authorized service center, agencies or our company directly.

7 3 Diagram of the Operating Principle o. ame o. ame o. ame o. ame Inverter compressor 3 Solenoid valve 5 Water filter 37 Discharge temperature sensor EXV 6 Inlet temperature sensor (plate heat exchanger) Solar system inlet temperature sensor 38 Water separator 3 High-pressure switch 5 Low pressure sensor 7 Safety valve 39 -way Valve High pressure sensor 6 5 -way Valve 7 Suction temperature sensor Outlet water temperature sensor (plate heat exchanger) 6 Finned heat exchanger 8 Auxiliary electric heater Environment temperature sensor Defrosting temperature sensor 8 Exhaust valve 0 Floor radiator 9 3-way valve Water collector Water tank temperature sensor FCU 9 Expansion tank 3 Water tank 3 By-pass valve 0 Main outlet temperature sensor 9 Filter Main water pump 33 0 EXV Main flow switch 3 3 Solar system outlet temperature sensor Solar system flow switch Solar system water pump Flasher 3 Outlet pipe connector 35 Solar panel Pressure sensor Inlet pipe connector 36 Solar panel temperature sensor Vapor liquid separator 5 Main plate heat exchanger 6 Water tank temperature sensor 5

8 Operating Principle of the Unit DC Inverter Air to Water Heat Pump is composed of the unit,fcu and water tank. Operation functions: () Cooling; () Heating; (3) Water heating; () Cooling +water heating; (5) Heating+ water heating; (6) Emergency mode; (7) Quick water heating; (8) Holiday mode; (9) Forced Operation Mode; (0) Silent mode; () Disinfection mode; () Weather-dependent Operation; (3) Floor debugging () Air removal of the water system (5) Solar water heater (6) Backup heat source Cooling: in cooling mode, the refrigerant is condensed in the aluminum fin-copper tube and evaporated in the plate heat exchanger. Via the heat exchange with water in the plate heat exchanger, the temperature of water decrease and it releases heat while the refrigerant absorbs heat and evaporates. With the help of wired controller, the outflow temperature can meet the user s requirement. Through the control of valve, the low-temperature water in the system is connected with indoor fan coil and underground pipe, and exchanges heat with the indoor air so that the indoor temperature decreases to the required range. Heating: in heating mode, the refrigerant evaporates in the aluminum fin-copper tube and is condensed in the plate heat exchanger. Via the heat exchange with water in the plate heat exchanger, the water absorbs heat and its temperature increase while the refrigerant releases heat and is condensed. With the help of wired controller, the outflow temperature can meet the user s requirement. Through the control of valve, the high-temperature water in the system is connected with indoor fan coil and underground pipe, and exchanges heat with the indoor air so that the indoor temperature increases to the required range. Water heating: in water heating mode: the refrigerant evaporates in the aluminum fin-copper tube and is condensed in the plate heat exchanger. Via the heat exchange with water in the plate heat exchanger, the water absorbs heat and its temperature increase while the refrigerant releases heat and is condensed. With the help of wired controller, the outflow temperature can meet the user s requirement. Through the control of valve, the high-temperature water in the system is connected with the coil pipe of bearing water tank, and exchanges heat with the water in the water tank so that the temperature of water tank increases to the required range. Cooling + water heating: when cooling mode exists together with the water heating mode, the user can set the priority of these two modes based on the needs. The default priority is heat pump. That is under the default setting, if cooling mode exists together with the water heating mode, the heat pump gives priority to cooling. In that case, water heating can only realized with e-heater of the water tank. Inversely, the heat pump gives priority to water heating and switches to cooling after finishing water heating. Heating+ water heating: when heating mode exists together with the water heating mode, the 6

9 user can set the priority of these two modes based on the needs. The default priority is heat pump. That is under the default setting, if heating mode exists together with the water heating mode, the heat pump gives priority to heating. In that case, water heating can only realized with e-heater of the water tank. Inversely, the heat pump gives priority to water heating and switches to heating after finishing water heating. Emergency mode: this mode is only available for heating and water heating. When the monobloc unit stops due to malfunction, enter the corresponding emergency mode; as to heating mode, after entering the emergency mode, heating can only be realized through e-heater.when the setting outflow temperature or indoor temperature is reached, the e-heater will stop running; as to water heating mode, the e-heater stops while the e-heater of water tank runs. When the setting temperature or water tank is reached, the e-heater will stop running. Quick water heating: in quick water heating mode, the unit runs according to the water heating control of heat pump and the e-heater of water tank runs at the same time. Forced Operation Mode: this mode is only used for refrigerant recovery and debugging for the unit. Holiday mode:this mode is only available for heating mode. This mode is set to keep indoor temperature or leaving water temperature in a certain range, so as to prevent water system of the unit from freezing or protect certain indoor articles from freezing damage. When the unit stops due to malfunction, the two e-heaters of the unit will run. Disinfection mode: in this mode, the water heating system can be disinfected. When starting up the disinfection function and setting corresponding time to meet the requirement of disinfection mode, the function will start. After the setting temperature is reached, this mode will terminate. Weather-dependent Operation: this mode is only available for space heating or space cooling. In Weather- dependent mode, the setting value (remote room air temperature or leaving water temperature) is detected and controlled automatically when the outdoor air temperature is changed. Quiet mode: Silent mode is available in cooling, heating and water heating mode. In silent mode, the unit will reduce the running noise via automatic control. Floor commissioning: this function is intended to preheat the floor periodically for the initial use. Air removal of the water system: this function is intended to replenish water and remove air in the water system to make the equipment run at the stabilized water pressure. Solar water heater: when the condition for starting the solar water heater is satisfied, the solar heater will start to heat the circulation water. Then the heated water will go to the water tank and exchange heat with water in it. At any condition, the solar water heater will be given priority for startup so as for energy conservation. Backup heat source: when the outdoor temperature is lower than the set point for starting the backup heat source and the unit is under the error condition and the compressor has stopped for three minutes, then the backup heat source will start to supply heat or hot water to the room. 7

10 5 omenclature G RS - C Q 6 Pd / a C - M O. Description Options GREE G-GREE Air to water heat pump Heat Pump Water Heater RS 3 Heating Mode S= Static; C=Circulating Function Q=Multi-function; Omit=Single-function 5 ominal Heating Capacity 6=6.0kW; 8=8.0kW;0=0kW; =kw; =kw; 6=6kW 6 Compressor Style Pd=DC Inverter; Omit=On/Off 7 Refrigerant a=r0a 8 Design Serial umber B,C,D... 9 Power Supply K=0-0V,~,50Hz; M=380-5V,3~,50Hz Model Line-Up Model ame Heating,kW Capacity Cooling,kW GRS-CQ8.0Pd/aC-K GRS-CQ0Pd/aC-K GRS-CQPd/aC-M GRS-CQPd/aC-M..5 Power supply 0-0V,~,50Hz 380-5V,3~,50Hz ote: Capacities and power inputs are based on the following conditions: Indoor Water Temperature 30 C/35 C,Outdoor Air Temperature 7 C DB/6 C WB; Capacities and power inputs are based on the following conditions: Indoor Water Temperature 3 C/8 C,Outdoor Air Temperature 35 C DB/ C WB. Operation Range Mode Heat Source Side Temperature ( C) User Side Temperature ( C) Heating -0~35 5~60 Cooling 0~8 7~5 Water Heating -0~5 0~80 8

11 6 Installation Example CASE : Connecting Heat Emitters for Heating and Cooling(Under floor loop,fan Coil Unit,and Radiator) ote: The two-way valve is very important to prevent dew condensation on the floor and Radiator while cooling mode; Type of thermostat and specification should be complied with installation of this manual; 3 The Bypass valve must be installed to secure enough water flow rate, and should be installed at the collector; CASE : Connecting Sanitary Water Tank 9

12 ote: In this case, three-way valve should be installed and should be complied with installation of this manual; Sanitary water tank should be equipped with internal electric heater to secure enough heat energy in the very cold days; CASE 3 : Connecting Solar thermal system Two-way valve is very important to prevent dew condensation on the floor and Radiator while cooling mode. CASE : Connecting Swimming pool system T Under Floor Coil B 3-way valve 3-way valve M FCU F CU Radiator Hot water Sanitary water tank Booster heater City water 0

13 otes: )Two-way valve is very important to prevent dew condensation on the floor and Radiator while cooling mode. ) 3-Way valve is controlled by user,while the pool pump is actived, 3-Way valve switches to pool loop;while the pool pump is shuted down,3-way valve switches to under floor/fcu loop. 3) 3-Way valve is automatic controlled by monobloc unit,while running water heating mode,3- Way valve switches to water tank loop;while running cooling/heating mode,3-way valve switches to under floor/fcu loop. 7 Main Components () GRS-CQ8.0Pd/aC-K,GRS-CQ0Pd/aC-K Control Box Electric Heater DC Fan Motor Water Pump Flow Switch Expansion Tank Compressor Plate Heat Exchanger

14 () GRS-CQPd/aC-M,GRS-CQPd/aC-M Control Box Safety Valve DC Fan Motor Air Vent Electric Heater Flow Switch Expansion Tank Water Pump Compressor Flash Tank Plate Heat Exchanger

15 8 Installation Guideline of the Unit 8. Instruction to installation () Installation of the unit must be in accordance with national and local safety codes. () IInstallation quality will directly affect the normal use of the air conditioner unit. The user is prohibited from installation. Please contact your dealer after buying this machine. Professional installation workers will provide installation and test services according to installation manual. (3) Do not connect to power until all installation work is completed. 8. Installation of the Monobloc Unit 8.. Selection of the Installation Location of the Monobloc Unit () The monobloc unit must be installed on a firm and solid support. () Avoid placing the monobloc unit under window or between two constructions, hence to prevent normal operating noise from entering the room. (3) Air flow at inlet and outlet shall not be blocked. () Install at a well-ventilated place, so that the machine can absorb and discharge sufficient air. (5) Do not install at a place where flammable or explosive goods exist or a place subject to severe dust, salty fog and polluted air. 8.. Outline Dimensions of the Monobloc Unit () GRS-CQ8.0Pd/aC-K,GRS-CQ0Pd/aC-K

16 >000 >500 () GRS-CQPd/aC-M,GRS-CQPd/aC-M Space requirements for installation >000 >500 >500 >000 > Precautions on installation of the Monobloc Unit () When moving the monobloc unit, it is necessary to adopt pieces of long enough rope to hand the unit from directions. Included angle between the rope when hanging and moving must be 0 below to prevent center of the unit from moving. () The monobloc unit should be installed on concrete base that is 0cm height. (3) Requirements on installation space dimension of unit s bodies are shown in following drawing. () The monobloc unit must be lifted by using designated lifting hole. Take care to protect the unit during lift. To avoid rusting, do not knock the metal parts.

17 8.3 Water Volume and Pump Capacity (with pump) n/ /min nmax nmin Off 3 0 U/V ote: during operation, the water pump will adjust its output based on the actual load. 5

18 8. Water Volume and Expansion Vessel Pressure Pre-pressure in expension vessel(bar) Maximum total water volume(liter) ote: The expansion vessel is 0 liter and bar pre-pressurized; Total water volume of 80 liter is default; if total water is changed because of installation condition, the pre-pressure should be adjusted to secure proper operation; 3 Minimum total water volume is 0 liter; To adjust pre-pressure, use nitrogen gas by certificated installer. 8.5 Selection of Expansion Vessels Formula: V--- Volume of expansion vessel C--- Total water volume P --- Pre-set pressure of expansion vessel P -- The highest pressure during running of the system (that is the action pressure of safety valve.) e---the expansion factor of water (the difference between the expansion factor of the original water temperature and that of highest water temperature.) Water expansion factor in different temperature Temperature( ) Expansion factor e

19 Remote Air Temperature Sensor Front side Back side Remote Air Temperature Sensor O YES O.5 Meters O O Doors C5 Remote Air Environment Temp sensor C 5K Electric box ote: Distance between the monobloc unit and the remote air temperature senor should be less than 5 meter due to length of the connection cable of remote air temperature sensor; Height from floor is approximately.5 meter; 3 Remote air temperature sensor can not be located where the area may be hidden when door is open; Remote air temperature sensor can not be located where external thermal influence may be 7

20 applied; 5 Remote air temperature sensor should be installed where space heating is mainly applied; 6 After the remote air temperature sensor is installed, it should be set to With through the wired controller so as to set the remote air temperature to the control point. 0 Thermostat Installation of the thermostat is very similar to that of the remote air temperature sensor. XT OFF V AC V GD COOL HEAT COOL HEAT OFF 0V GD 0V AC Thermostat Thermostat How to Wire Thermostat () Uncover the front cover of the monobloc unit and open the control box. () Identify the power specification of the thermostat, if it is 30V, find terminal block XT3 aso.~5; Otherwise, if it is V, find terminal block XT3 as O.6~30; (3) If it is the heating/cooling thermostat, please connect wire as per the figure above; CAUTIO! ever use 30V AC and V AC thermostat at the same time, otherwise, it will cause short circuit and power cut-off by the circuit breaker; Setting temperature by the thermostat(heating or cooling) should be within the temperature range of the product ; 3 For other constrains, please refer to previous pages about the remote air temperature sensor; Do not connect external electric loads. Wire 0V AC(V AC) and 0V GD(V GD) should be used only for the electric thermostat. 5 ever connect external electric loads such as valves, fan coil units, etc. If connected, the mainboard of the unit can be seriously damaged. 6 Installation of the thermostat is very similar to that of the remote air temperature sensor. -Way Valve There are two -way valve,the -way valve is available and the -way vavle is reserved.the -way valve is required to control water flow for cooling operation. The role of -way valve is to cut off water flow into the underfloor loop when the fan coil unit is equipped for cooling operation. General Information Type Power Operating Mode Supported Closing water flow Yes O -wire 30V 50Hz ~AC Opening water flow Yes Closing water flow Yes C -wire 30V 50Hz ~AC Opening water flow Yes () ormal Open type. When electric power is OT supplied, the valve is open. (When electric power is supplied, the valve is closed.) () ormal Closed type. When electric power is OT supplied, the valve is closed. (When electric power is supplied, the valve is open.) 8

21 How to Wire -Way Valve: Follow steps below to wire the -way valve. Step. Uncover the front cover of the unit and open the control box. Step. Find the terminal block and connect wires as below. XT L(O) L(OFF) L(O) L(OFF) -Way Valve -Way Valve WARIG! ormal Open type should be connected to wire (O) and wire ()for valve closing in cooling mode. ormal Closed type should be connected to wire (OFF) and wire ()for valve closing in cooling mode. (O) : Line signal (for ormal Open type) from PCB to -way valve (OFF) : Line signal (for ormal Closed type) from PCB to -way valve () : eutral signal from PCB to -way valve The -way value is reserved without any control program. At the field installation, it should be wired at the terminal board of the -way valve. 3-Way Valve There are two 3-way valve, the 3-way valve is reserved and the 3-way valve is available.the 3-way valve is required for the sanitary water tank. Its role is flow switching between the under floor heating loop and the water tank heating loop. General Information Type Power Operating Mode Supported SPDT Selecting Flow A between Flow A and Flow B Yes 3-wire 30V 50Hz ~AC Selecting Flow B between Flow B and Flow A Yes () SPDT = Single Pole Double Throw. Three wires consist of Live (for selecting (for selecting Flow B), and eutral (for common). () Flow A means 'water flow from the monobloc unit to under floor water circuit'. (3) Flow B means 'water flow from the monobloc unit to sanitary water tank'. Follow steps below to wire the 3-way valve: Follow below procedures Step ~ Step. Step. Uncover front cover of the unit and open the control box. Step. Find terminal block and connect wire as below. XT L(O) L(OFF) L(O) L(OFF) 3-Way Valve 3-Way Valve 9

22 WARIG! The 3-way valve should select water tank loop when electric power is supplied to wire (OFF) and wire (). The 3-way valve should select under floor loop when electric power is supplied to wire (O) and wire (). (O): Line signal (Water tank heating) from the main board to the 3-way valve (OFF): Line signal (Under floor heating) from the main board to the 3-way valve (): eutral signal from the main board to the 3-way valve 3 Wired Controller Wired controller wiring guidance: Other Auxiliary Heat Sources Other auxiliary heat sources are allowed for the equipment and controlled in such a way that the mainboard will output 30V when outdoor temperature is lower than the set point for startup of the auxiliary heat source. XT 3 5 Gate-controller Other Thermal If there is gate control function,installation guide follow as: () GRS-CQ8.0Pd/aC-K,GRS-CQ0Pd/aC-K XT3 Gate-Controller () GRS-CQPd/aC-M,GRS-CQPd/aC-M XT 5 6 Gate-Controller 0

23 6 Charging and Discharging of Refrigerant The unit has been charged with refrigerant before delivery. Overcharging or undercharging will cause the compressor to run improperly or be damaged. When refrigerant is required to be charged or discharged for installation, maintenance and other reasons, please follow steps below and nominal charged volume on the nameplate. () Discharging: remove metal sheets of the outer casing, connect a hose to the charging valve and then discharge refrigerant. Charging valve Charging valve otes: Discharge is allowed unless the unit has been stopped. (Cut off the power and repower it minutes later) Protective measures should be taken during discharging to avoid frost bites. 3 When discharging is finished, if vacuuming cannot be done immediately, remove the hose to avoid air or foreign matters entering the unit. () Vacuuming: When discharging is finished, use hoses to connect the charging valve, manometer and vacuum pump to vacuum the unit. Pressure Meter Connection Pipe Vacuum pump ote: when vacuuming is finished, pressure inside the unit should be kept lower than 80Pa for at least 30 minutes to make sure there is no leak. Either charging valve or charging valve can be used for vacuuming. (3) Charging: when vacuuming is finished and it is certain that there is no leak, charging can be done. Be sure to charge the specified amount of refrigerant in liquid state. Since this refrigerant is a mixed refrigerant, adding it in gas form may cause the refrigerant composition to change, preventing normal operation. Before charging, check whether the refrigerant cylinder is equipped with a siphon tube or not.

24 With siphon tube o siphon tube 7 Installation of Insulated Water Tank 7. Installation measure The water tank should keep a horizontal distance of 5 meters and a vertical distance of 3 meters with the main unit. It allowed to be installed in the room. The standing type water tank must be installed erectly on the ground/floor and never be suspended. Installation place must be firm enough and the water tank should be fixed on the wall with bolts to avoid vibration, as shown in the following figure. During installation, weight of the water tank should be taken into consideration. Water Tank Fix With Bolts Installed on the ground and never suspended The minimum clearance between the water tank and any combustible object must be 500mm. The water pipe, hot water joint and floor drain should be equipped for the water replenishment, hot water supply and drainage of the water tank respectively. Connection of the inlet/outlet waterway: connect the safety check valve attached with the unit (with the arrow on it pointing at the water tank) to the water inlet of the water tank with the PPR pipe according to the following figure and seal with seal tape. The other end of the safety check valve should connect with the water tap. The hot water pipe should be connected to the water outlet of the water tank also with the PPR pipe. Safety check valve Tap water ote: For safe use of water, water outlet/inlet of water tank must connect with a certain length of PPR pipe,l 70 R (cm, R is inside radius of the pipe). Moreover, heat preservation should be conducted and metal pipe can not be used. For the first use, water tank must be full of water before the power is on.

25 7. Outline dimension and parameter of water tank SXVD00LCJ/A-K SXVD00LCJ/A-K SXVD300LCJ/A-K SXVD300LCJ/A-K Model SXVD00LCJ/A-M SXVD00LCJ/A-M SXVD300LCJ/A-M SXVD300LCJ/A-M SXVD00LCJ/A-H SXVD00LCJ/A-H SXVD300LCJ/A-H SXVD300LCJ/A-H Litre 00L 00L 300L 300L coil specification SUS30 ФX0.8 coil M \ 0m \ 0m length 3m 3m 8.5m 8.5m D(mm) D(mm) H(mm) A(mm) 7 80 B(mm) 05 C(mm) E(mm) 3 6 F(mm) I(mm) \ 80 \ 95 J(mm) \ 7.5 \ 0.5 K(mm) Outline (Diameter H) (mm) Φ Φ60 60 et weight(kg) Description Hot water outlet of water tank Circulating water inlet/outlet of water tank Cooling water inlet of water tank Pipe joint Joints Dimension 3 Joint pipe thread / Female BSP 3/ Female BSP / Female BSP 3/ Female BSP

26 7.3 Connection of waterway system () If connection between the water tank and the monobloc unit should go through the wall, drill a hole φ70 for pass of circulating water pipe. () Preparation of pipelines: circulating water outlet/inlet pipe must be hot water pipe and PPR pipe with nominal outer diameter of dn5 and S.5 series (wall thickness of.mm) are recommended. Cooling water inlet pipe and hot water outlet pipe of water tank should also be hot water pipe and PPR pipe with nominal outer diameter of dn0 and S.5 series (wall thickness of 3.mm) are recommended. If other insulated pipes are adopted, refer to the above dimensions for outer diameter and wall thickness. (3) Installation of circulating water inlet/outlet pipes: connect the water inlet of the unit with circulating outlet of water tank and water outlet of unit with circulating inlet of water tank. () Installation of water inlet/outlet pipes of the water tank: safety check valve, filter and cut-off valve must be installed for the water inlet pipe according to the installation sketch of the unit. At least a cut-off valve is needed for the water outlet pipe. (5) Installation of blow-off pipes at the bottom of water tank: connect a piece of PPR pipe with drainage outlet to floor drain. A cut-off valve must be installed in the middle of the drainage pipe and at the place where it is easy to be operated by the users. (6) After connection of all waterway pipelines, perform the leakage test firstly. After that, bind up the water pipes, water temp sensor and wires with wrapping tapes attached with the unit. (7) Refer to Installation Sketch of the Unit for details. AP C9 C C Hot Water Outlet XT3 Tem.Sensor Other Thermal System Monobloc Unit Cool Water Inlet Safety Check Valve Filter Tap Water Power cord of booster heater Description Circulating water inlet/outlet of main unit Cooling water inlet of water tank Circulating water inlet/outlet of water tank Hot water outlet of water tank Cut- Off Valve Blow -O ff Outlet Joint pipe thread Male BSP / Female BSP 3/ Female BSP / Female BSP ote: Distance between monobloc unit and water tank should not exceed 5m levelly and 3m vertically. If higher, please contact with us. Water tank on lower and main unit on higher side is recommended. Prepare the materials according to the above joints dimension. If cut-off valve is installed outside the room, PPR pipe is recommended to avoid freeze damage.

27 3 Waterway pipelines can t be installed until water heater unit is fixed. Do not let dust and other sundries enter into pipeline system during installation of connection pipes. After connection of all waterway pipelines, perform leakage test firstly. After that, perform heat preservation of waterway system; meanwhile, pay more attention to valves and pipe joints. Ensure enough thickness of insulated cotton. If necessary, install heating device for pipeline to prevent the pipeline from freezing. 5 Hot water supplied from insulated water tank depends on pressure of water tap, so there must be supply of tap water. 6 During using, the cut-off valve of cooling water inlet of water tank should be kept normally on. 7. Electric wiring work 7.. Wiring principle General principles Wires, equipment and connectors supplied for use on the site must be in compliance with provisions of regulations and engineering requirements. Only certificated electricians are allowed to perform wire connection on the site. Before connection work is started, the power supply must be shut off. Installer shall be responsible for any damage due to incorrect connection of the external circuit of the unit. Caution --- only copper wires are allowed to be used. Connection of power cable to the electric cabinet of the unit Power cables should be laid out through cabling trough, conduit tube or cable channel. Power cables to be connected into the electric cabinet must be protected with rubber or plastic to prevent scratch by edge of metal plate. Power cables close to the electric cabinet of the unit must be fixed reliably to make the power terminal in the cabinet free from an external force. Power cable must be grounded reliably. 7.. Specification of Power Supply Wire and Leakage Switch Power cable specifications and Leakage switch types in the following list are recommended. Model Power Supply Leakage Switch Minimum Sectional Area of Earth Wire Minimum Sectional Area of Power Supply Wire V,Ph,Hz (A) (mm ) (mm ) GRS-CQ8.0Pd/aC-K V,~,50Hz GRS-CQ0Pd/aC-K GRS-CQPd/aC-M V,3~,50Hz GRS-CQPd/aC-M ote: The leakage switch is necessary for additional installation. If circuit breakers with leakage protection are in use, action response time must be less than 0. second, leakage circuit must be 30mA. The above selected power cable diameters are determined based on assumption of distance from the distribution cabinet to the unit less than 75m. If cables are laid out in a distance of 75m to 50m, diameter of power cable must be increased to a further grade. 3 The power supply must be of rated voltage of the unit and special electrical line for airconditioning. All electrical installation shall be carried out by professional technicians in accordance with the 5

28 local laws and regulations. 5 Ensure safe grounding and the grounding wire shall be connected with the special grounding equipment of the building and must be installed by professional technicians. 6 The specifications of the breaker and power cable listed in the table above are determined based on the maximum power (maximum amps) of the unit. 7 The specifications of the power cable listed in the table above are applied to the conduitguarded multi-wire copper cable (like, YJV XLPE insulated power cable) used at 0 C and resistible to 90 C(see IEC ). If the working condition changes, they should be modified according to the related national standard. 8 The specifications of the breaker listed in the table above are applied to the breaker with the working temperature at 0 C. If the working condition changes, they should be modified according to the related national standard. 6

29 8 Wring Diagram 8. Control Board () Main Board (AP):GRS-CQ8.0Pd/aC-K, GRS-CQ0Pd/aC-K,GRS-CQPd/aC-M, GRSCQPd/aC-M: AC- AC-L V VA- HEAT ETH FB FA ETH-PRESS L-PRESS H-PRESS C8 COM-ESPE C7 PWR HPP DC-MOTOR0 T-SESOR3 DC-MOTOR Silk Screen AC_ AC_L V VA- HEAT ETH FB FA ETH-PRESS L-PRESS H-PRESS C8 C7 COM-ESPE HPP T-SESOR3 T-SESOR C5 DC-MOTOR DC-MOTOR0 PWR C5 T-SESOR Specification eutral wire input of power supply Live wire input of power supply -way valve E-heater of chassis Electric heating tape Solenoid valve To EXV,pipe electric expansion valve,- pin: driving impulse output; 5 pin: +V; To EXV,pipe electric expansion valve,- pin: driving impulse output; 5 pin: +V; Signal input of pressure sensor pin: GD; pin: signal input; 3 pin: +5V; Signal input of pressure sensor pin: GD; pin: signal input; 3 pin: +5V; Signal input of pressure sensor pin: GD; pin: signal input; 3 pin: +5V; To the wired controller, communication cable: pin earthed, pin B, 3 pin A, pin+power supply; Communication between AP and AP;communication cable pin B, 3 pina Pin for communication with the drive High pressure switch hole: +3.3V hole: detection ; suction temperature sensor, hole: pipe temperature; 3, hole: environment; 5, 6 hole: exhaust Supply 8V DC power to the drive. DC fan pin: strong power supply; 3 pin: fan GD; pin: +5V; 5 pin: control signal; 6pin:feedback signal; DC fan pin: strong power supply; 3 pin: fan GD; pin: +5V; 5 pin: control signal; 6pin:feedback signal; Supply 30V DC power to the drive. 7

30 ()Main Board (AP):GRS-CQ8.0Pd/aC-K, GRS-CQ0Pd/aC-K,GRS-CQPd/aC-M, GRSCQPd/aC-M HEAT AC-L E RR RUH BA-HEAT X5 HEAT OTHER_HEAT_ 0V EAT X9 X0 V_O V_OFF V_O V_OFF 3V_O 3V_OFF 3V_O 3V_OFF OTHER_HEAT_DCOUT OTHER_HEAT_DCI C6 C33 C COM-OUT TR-I C3 IDOOR_PUMP C8 POOL_PUMP TR-OUT TR-OUT SOLOR_PUMP T-SE3 SW_IDOOR SW_SOLAR T-SE SW_POOL T-SE0 T-SE T-SE5 T-SE8 T-SE9 T-SE7 T-SE T-SE6 T-SE3 T-SE OVC_HEAT OVC_HEAT OVC_WT_HEAT DOOR_I T-SE Silk Screen Location Introduction AC-L - Live wire of power supply - eutral wire of power supply ERR X9 Error indicator RU X5 Running indicator WT_HEAT X6 E-heater of water tank HEAT X7 E-heater HEAT X8 E-heater BA_HEAT X3 Antifreeze heater for the heat exchanger OTHER_HEAT_0V X6 Assistant heat by 0VAC X5 X5 Reserved X0 X0 Reserved X9 X9 Reserved V_OFF X8 Electric magnetic -way valve is normally closed. 8

31 V_O X7 Electric magnetic -way valve is normally open. V_OFF X Electric magnetic -way valve is normally closed. V_O X3 Electric magnetic -way valve is normally open. 3V_OFF X Electric magnetic 3-way valve is normally closed. 3V_O X Electric magnetic 3-way valve is normally open. 3V_OFF X Electric magnetic 3-way valve is normally closed. 3V_O X Electric magnetic 3-way valve is normally open. OTHER_HEAT_DCOUT X The dc output of assistant heat OTHER_HEAT_DCI X The dc input of assistant heat COM-OUT C5 Connect to AP C6 C6 Connect the wired controller IDOR_PUMP C Control and feedback of the water pump for the main unit C8 C8 Feedback of the water pump for the main unit POOL_PUMP C9 Control and feedback of the water pump for the swimming pool SOLAR_PUMP C7 Control and feedback of the water pump for the solar system SW_IDOOR C5 Detection input of water flow switch for indoor SW_SOLAR C6 Detection input of water flow switch for solar SW_POOL C7 Detection input of water flow switch for pool DOOR_I C3 Door detection input OVC_WT_HEAT C8 E-heater of water tank adhesion-proof protection detector OVC-HEAT C6 E-heater of indoor unit adhesion-proof protection detector OVC-HEAT C7 E-heater of indoor unit adhesion-proof protection detector T-SE C0 Terminal of temperature sensor T-SE3 C Terminal of temperature sensor3 T-SE C Terminal of temperature sensor T-SE C Terminal of temperature sensor T-SE6 C Terminal of temperature sensor6 T-SE5 C0 Terminal of temperature sensor5 T-SE7 C9 Terminal of temperature sensor7 T-SE8 C3 Terminal of temperature sensor8 T-SE9 C30 Terminal of temperature sensor9 T-SE0 C Terminal of temperature sensor0 T-SE C5 Terminal of temperature sensor T-SE C3 Terminal of temperature sensor T-SE3 C Terminal of temperature sensor3 TR-OUT C Transformer output (V) TR-OUT C3 Transformer output (V) C8 C8 Power supply interface of the thermostat (0~0V) TR-I C 0V input of transformer C3 C3 Power supply interface and control signal of the thermostat (V)) C33 C33 Control signal of the thermostat 9

32 (3) Drive Board (AP):GRS-CQ8.0Pd/aC-K,GRS-CQ0Pd/aC-K G-OUT L- P-OUT L- DC-BUS PWR V U W L- L- AC-L COMM COMM Silk Screen AC-L Introduction Live line input of the drive board eutral line input of the drive board L- To PFC inductor brown line L- To PFC inductor white line L- To PFC inductor white line L- To PFC inductor blue line U To compressor phase U V To compressor phase V W To compressor phase W DC-BUS Pin for electric discharge of the high-voltage bar during test. P-OUT Reserved G-OUT COMM COMM PWR Reserved Communication interface[-3.3v,-tx,3-rx,-gd] Power input of the drive board [-GD,-8V,3-5V] 30

33 () Drive Board (AP):GRS-CQPd/aC-M, GRS-CQPd/aC-M o Silk Screen Introduction COMM Communication interface [-3.3V, -TX, 3-RX, -GD] PWR Switch power interface [-30VDC, 3-GD] 3 X Connector to filter L-F X Connector to filter L-F 5 X3 Connector to filter L3-F 6 X Connector to L- OF PFC reactor 7 X5 Connector to L- OF PFC reactor 8 X6 Connector to L3- OF PFC reactor 3 9 X9 Connector to L3- of PFC reactor 3 0 X8 Connector to L- of PFC reactor X7 Connector to L- of PFC reactor DC-BUS Pin for electric discharge of the high-voltage bar during test. 3 X50 Connector to the compressor phase-u X50 Connector to the compressor phase-v 5 X503 Connector to the compressor phase-w 3

34 (5) Filter Board (AP3):GRS-CQ8.0Pd/aC-K,GRS-CQ0Pd/aC-K AC- AC-L -OUT -OUT E E L -OUT Silk Screen Introduction AC- eutral line of the power supply for the main unit AC-L Live line of the power supply for the main unit -OUT -OUT L-OUT eutral line output of the filter board (to the drive board) eutral line output of the filter board (to the main board ) Reserved Live line output of the filter board (to the drive and main boards) E To the grounding line of the main unit E Reserved 3

35 (6) Filter Board (AP3):GRS-CQPd/aC-M, GRS-CQPd/aC-M o Silk Screen Introduction X Connector to power supply output line AC-L X Connector to power supply output line AC-L 3 X3 Connector to power supply output line AC-L3 X Connector to power supply neutral line AC- 5 X9 Connector to the grounding line E, reserved 6 X8 Connector to power supply neutral line -F (mainboard AC-) 7 X7 Connector to power supply output line L3-F (drive board L3-F) 8 X6 Connector to power supply output line L-F (drive board L-F) 9 X5 Connector to power supply output line L-F (drive board L-F and AC-L) 0 X Connector to power supply output line L-F (drive board L-F and AC-L) X0 Connector to the grounding line E 33

36 U V W Electric Wiring 8.. Wiring principle Refer to Section Electric wiring design Wiring diagram: monobloc unit. GRS-CQ8.0Pd/aC-K,GRS-CQ0Pd/aC-K PE Power Water tank Auxiliary electric heater PE Consumer Connection Specification XT L PE PE KM3 5 6 KM EH PE Electrical heater Earthing. The wires in the imaninal frames are connected bythe consumer.. power supply for Thermostat: If it is 0V AC, Please connect Terminal block(xt)..3..5; If it is V AC, please connect Terminal block(xt) If consumer need EH6 Please connectterminal block(xt) 9.0 with EH3 Together. KM 0 8 WH RD BK BU HT EH PE Electrical box Earthing 3-way valve -way valve 3-way valve -way valve Other thermal Running Indicating lamp Error indicating lamp Gatecontroller Thermostat Thermostat Pool-pump control signal Pool-pump fault feedback signal Solar-pump control signal Solar-pump fault feedback signal Pump Control signal (OUT) L OFF L O L OFF L O L OFF L O L OFF L O EH3 EH6 HL 5 6 HL SW SW 0VAC 0VACGD OFF HEAT COOL HEAT COOL VACGD VAC OFF XT XT3 XT AC-L X X X X3 X X X8 X7 X6 X5 X9 X3 X3 C3 C6 C7 C8 PE C33 C3 C9 C7 C8 AP C0 C3 C C C C9 C30 X7 X8 C6 C7 C8 C C C3 L L 3L TC 3 C C0 C C 0K 0K 0K 50K 50K 5K 0K 0K 50K 0 KM 8 0 KM X6 0 KM3 C5 C5 C5 C L8 0K 0K 0K KM-6 KM-6 KM3-6 SW3 RT RT RT3 RT RT5 RT7 RT8 RT9 RT0 RT RT RT3 HT XT 3 3 C M 0 5K XT PE 0K 5K 50K 0K HP AP BK/B L9 L9 BU RT6 YE/G p S P S P S P YV YV EH EH5 RT RT5 RT6 RT SP SP SP3 5 T-SESOR T-SESOR3 HPP H-PRESS L-PRESS AP ETH-PRESS ETH V HEAT VA- Communication line AP3 L-OUT -OUT C7 8 L L C5 AC-L AC- COM-ESPE FA FB DC-MOTOR L0 C8 AP 6 3 Display board L AP AP3 L EKV EKV L AC-L Electric component position map X AC- PWR COMM M X COMP 3 AP3 L-OUT PE AC-L AP E -OUT U V W L- L- L- L- 96 PE L3 L YE L7 L PE AP HT B WH XT XT TC KM3 BU 80 PE L KM KM XT XT3 CODE AME AP Main Board OnlyFor RT6 AP Indoor unit Main Board AP Outdoor unit Main Board AP3 Filter Board AP Drive Board COMP Compressor EH Water side electrical heater EH Water side electrical heater EH3 Plate heat exchanger anti-freezing EH Compressor band heater EH5 Bottom band heater EH6 expansion tank heater EKV Electronic expansionvalve coil EKV Electronic expansionvalve coil HL Running indicating lamp HL Error indicating lamp HP High pressure switch HT Temperature limiter HT Temperature limiter KM Auxiliary electric heater ACcontactor KM Auxiliary electric heater ACcontactor KM3 Water tank Auxiliary electric heater AC contactor L Electrical Inductance L Electrical Reactance L Electrical Inductance L3 L0 Magnetic ring M DC motor M Indoor unit pump RT Water-out temp sensor of the whole unit RT Water-in temp sensor ofthe whole unit RT3 Auxiliary heater leaving water temp sensor RT Water-tank temp sensor RT5 Water-tank temp sensor RT6 Remote room temp sensor RT7 Remote room temp sensor RT8 Pool water temp sensor RT9 Pool water-in temp sensor RT0 Pool water-outt temp sensor RT Solar water-out temp sensor RT Solar water-in temp sensor RT3 Solar Board temp sensor RT Defrosting temp sensor RT5 Outdoor temp sensor RT6 Discharged temp sensor RT7 Suction temp sensor SP High pressure sensor SP Low pressure sensor SP3 Enthalpy increasing pressure sensor SW Solar waterflow switch SW Swimming Pool waterflow switch SW3 Indoor units waterflow switch TC Transformer XT Terminal block(l,,,) XT Terminal block(~0) XT3 Terminal block(~6) XT Terminal block(~) YV Increase Enthalpy solenoid valve YV -way valve coil GRS-CQPd/aC-M, GRS-CQPd/aC-M Power XT L L L3 W8 W9 W0 PE PE W3 Water tank Auxiliary electric heater XT KM3 W W6 W5 W W7 3 W6 W8 6 5 W7 3 KM KM PE PE HT HT RD BK BU RD BK BU EH EH Specification. The wires in the imaninal frames PE PE are connected bythe consumer. Electrical heater Electricalbox Earthing Earthing. power supply for Thermostat: If it is 0V AC, Please connect Terminal block(xt3)..3..5; If it is V AC, please connect Terminal block(xt3) If consumer need EH6 Please connectterminal block(xt) 9.0 with EH3 Together. Top AP AP AP3 XT Front Underlayer XT3 XT KM3 KM KM L L L AP TC XT5 XT HT W W5 XT L(OFF) 3-way L(O) valve L(OFF) 3 -way L(O) valve 5 L(OFF) 6 3-way L(O) 7 valve 8 L(OFF) 9 -way L(O) 0 valve Other 3 thermal Running HL 5 indicating lamp 6 HL Error indicating 7 lamp 8 9 EH6 EH3 0 XT3 0VAC 0VACGD OFF 3 HEAT COOL 5 HEAT 6 COOL 7 VACGD 8 VAC 9 OFF 30 Pool-pump control 3 signal 3 Pool-pump fault 33 feedback signal 3 Solar-pump 35 control signal 36 Solar-pump fault 37 feedback signal 38 Pump Control 39 signal (OUT) 0 XT Gate controller 5 6 SW 7 8 SW 9 0 Thermostat Thermostat W5 W3 W W6 W50 W7 W8 W5 W9 W5 W5 W53 W55 W59 W57 W60 W58 W6 W56 W6 W63 W6 W70 W7 W7 W65 W66 W67 W68 W69 W73 W7 W75 W76 W77 W78 W79 W80 W8 W8 W0 W03 W06 W07 W0 W05 L5 W X5(L-F) X(AC-L) W X6(L-F) X(AC-L) W3 AP3 X7(L3-F) X3(AC-L3) W X(L) X(AC-) X9(E) X8(-F) RT 0K AC-L W C0 RT 0K PE X X RT3 0K C3 RT 0K X(AC-) X X3 RT 50K RT5 5K X(AC-L) C T-SESOR X RT6 50K X W RT5 50K PWR C W X8 RT7 0K X7 RT7 5K T-SESOR3 C COM-ESPE X6 HP p W37 RT8 0K W38 HPP X5 C0 X9 RT9 0K H-PRESS FA C X3 SP RT0 0K AP C L-PRESS RT 0K SP FB C8 C RT 0K C33 C9 ET-PRESS SP3 RT3 50K C30 DC-MOTOR0 W85 YV ETH AP KM- C6 W86 C3 W88 YV V KM- C7 DC-MOTOR EH5 W89 W87 VA- X7 C9 A A W9 EH W90 W95 HEAT X8 C7 C8 A A W9 KM3- HT3 C7 C8 W9 W96 W93 W97 XT5 X6 A A W98 L6 C8 SW3 C5 C5 KM KM KM3 C3 RT6 5K Display C5 C6 board C AP L C7 M3 L5 B XT5 W3 C XT-L M BU W XT- C C C3 YEG L5 L6 W9 W0 W L7 W5 RD W6 W7 W L BK L L L3 L8 W30 L3 W9 W8 L9 W3 W3 L0 W08 W09 W0 W 5 EKV 3 5 EKV 3 M M M M X(L-F) X(L-F) X3(L3-F) X(L-) X5(L-) X6(L3-) AP X9(L3-) X8(L-) X7(L-) PWR COMM X50(U) X50(V) X503(W) L W33 W3 W35 L COMP 3 W36 PE CODE AME YV -way valve coil AP Main Board Only For RT6 AP Indoor unit Main Board AP Outdoor unit Main Board AP3 Filter Board AP Drive Board COMP Compressor EH, Auxiliary electric heater EH3 Plate heat exchanger electric heater EH Compressor band heater EH5 Botton band heater EH6 Expand jar electric heater EKV Electric expansion valve coil EKV Electric expansion valve coil HL Running indicating lamp HL Error indicating lamp HP High pressure switch HT, Thermostat (WP95A-R) HT3 Thermostat (WP75A-R) L~L3 Inductor L Electrical Inductance L5~L6 Magnetic ring M Down DC Motor M UP DC Motor M3 Indoor unit pump RT Water-out temp sensor of the whole unit RT Water-in temp sensor of the whole unit RT3 Auxiliary heater water-out temp sensor RT Water-tank temp sensor RT5 Water-tank temp sensor RT6 Remote Airtempsensor RT7 Remote Airtempsensor RT8 Pool water temp sensor RT9 pool water-in temp sensor RT0 Pool water-out temp sensor RT Solar water-out temp sensor RT Solar water-in temp sensor RT3 Solar board temp sensor RT Defrosting temp sensor RT5 Outdoor temp sensor RT6 Discharged temp sensor RT7 Suction temp sensor SP High pressure sensor SP Low pressure sensor SP3 Increase enthalpy pressure sensor SW Solar waterflow switch SW Pool waterflow switch SW3 Indoor units waterflow switch TC Transformer YV Increase enthalpy solenoid valve L PE 3 L 3L TC 3

37 8..3 Terminal Board GRS-CQ8.0Pd/aC-K,GRS-CQ0Pd/aC-K: GRS-CQPd/aC-M, GRS-CQPd/aC-M: 35

38 9 Commissioning 9. Check before startup For safety of users and unit, the unit must be started up for check before debugging. The procedures are as below: The following items shall be performed by qualified repair persons. Confirm together with the sales engineer, dealer, installing contractor and customers for the following items finished or to be finished. o. Confirmation of Installation If the contents of Application for Installation of this Unit by Installer are real. If not, debugging will be refused. Is there written notice in which amendment items are shown in respect of unqualified installation? 3 Are Application for Installation and Debugging list filed together? o. Pre-check Is appearance of the unit and internal pipeline system ok during conveying, carrying or installation? Check the accessories attached with the unit for quantity, package and so on. 3 Make sure there is drawings in terms of electricity, control, design of pipeline and so on. Check if installation of the unit is stable enough and there is enough space for operation and repair. 5 Completely test refrigerant pressure of each unit and perform leakage detection of the unit. 6 Is the water tank installed stably and are supports secure when the water tank is full? 7 Are heat insulating measures for the water tank, outlet/inlet pipes and water replenishing pipe proper? 8 Are the nilometer of water tank, water temperature indicator, controller, manometer, pressure relief valve and automatic discharge valve etc. installed and operated properly? 9 Does power supply accord with the nameplate? Do power cords conform to applicable requirements? 0 Is power supply and control wiring connected properly according to wiring diagram? Is earthing safe? Is each terminal stable? Are connection pipe, water pump, manometer, thermometer, valve etc. are installed properly? Is each valve in the system open or closed according to requirements? 3 Confirm that the customers and inspection personnel of Part A are at site. Is Installation Check-up Table completed and signed by the installation contractor? Attention: If there is any item marked with, please notify the contractor. Items listed above are just for reference. General Evaluation: Debugging Amendment Judge the following items (if there is not any filling, qualification will be regarded.) a: Power supply and electric control system b: Loading calculation c: Heating problems of Unit d: oise problem e: Pipeline problem f: Others Confirmed Items after pre-checking ormal debugging work can t be performed unless all installation items are qualified. If there is any problem, it must be solved firstly. The installer will be responsible for all costs for delay of debugging and re-debugging incurred by any problem which is not solved immediately. Submit schedule of amending reports to installer. Is the written amending report which should be signed after communication provided to installer? Yes ( ) o ( ) 36

39 9. Test run Test run is testing whether the unit can run normally via preoperation. If the unit cannot run normally, find and solve problems until the test run is satisfactory. All inspections must meet the requirements before performing the test run. Test run should follow the content and steps of the table below: The following procedure should be executed by experience and qualified maintenance men. o. Start up the pretest procedure otice: before test, ensure that all power must be cut off, including the far- end power switch, otherwise, it may cause casualty. Ensure that the compressor of the unit is preheated for 8h. Caution: heat the lubricating oil at least 8h in advance to prevent refrigerant from mixing with the lubricating oil, which may cause damage to the compressor when starting up the unit. Check whether the oil temperature of the compressor is obviously higher than the outdoor ambient temperature. Caution: if the oil temperature of the compressor is obviously higher than the outdoor ambient temperature, it means that the heating tape of compressor is damaged. In that case, the compressor will be damaged easily. Therefore, repair the heating tape before using the unit. Check whether the phase sequence of the main power supply is correct. If not, correct the phase 3 sequence firstly. Recheck the phase sequence before start-up to avoid reverse rotation of the compressor which may damage the unit. Apply the universal electric meter to measure the insulation resistance between each outdoor phase and earth as well as between phases. Caution: defective earthing may cause electric shock. o. o. Ready to start Cut off all temporary power supply, resume all the insurance and check the electricity for the last time. Check the power supply and voltage of the control circuit; V must be ±0% within the range of rated operating power. Start up the unit Check all the conditions needed to start up the unit: oil temperature, mode, required load etc. Others: Start up the unit, and observe the operation of compressor, electric expanding valve, fan motor and water pump etc. ote: the unit will be damaged under abnormal running state. Do not operate the unit in states of high pressure and high current. Items for acceptance after debugging Estimation or suggestion on the general running situation: good, modify Identify the potential problem (nothing means the installation and debugging are in accordance with the requirements.) a. problem of power supply and electric control system: b. problem of load calculation: c. outdoor refrigerant system: d. noise problem: e. problem of indoor and piping system: h. other problems: During operation, it is needed to charge for the maintenance due to non-quality problems such as incorrect installation and maintenance. Acceptance Is the user trained as required? Please sign. Yes( ) o( ) 37

40 0 Daily Operation and Maintenance In order to avoid damage of the unit, all protecting devices in the unit had been set before delivery, so please do not adjust or remove them. For the first startup of the unit or next startup of unit after long-period stop (above day) by cutting off the power, please electrify the unit in advance to preheat the unit for more than 8 hours. ever put sundries on the unit and accessories. Keep dry, clean and ventilated around the unit. Remove the dust accumulated on the condenser fin timely to ensure performance of the unit and to avoid stop of the unit for protection. In order to avoid protection or damage of the unit caused by blockage of the water system, clean the filter in water system periodically and frequently check water replenishing device. In order to ensure anti-freezing protection, never cut off the power if ambient temperature is below zero in winter. In order to avoid frost crack of the unit, water in the unit and pipeline system not used for a long period should be drained. In addition, open the end cap of the water tank for drainage. ever frequently make the unit on/off and close the manual valve of the water system during operation of the unit by users. Ensure frequent check to the working condition of each part to see if there is oil stain at pipeline joint and charge valve to avoid leakage of refrigerant. If malfunction of the unit is out of control of users, please timely contact with authorized service center. otes: The water pressure gage is installed in the returning water line in the unit. Please adjust the hydraulics system pressure according to next item: If the pressure is less than 0.5 bar, please recharge the water immediately; When recharging, the hydraulics system pressure should be not more than.5bar. Troubleshooting Malfunctions Reasons Troubleshooting Compressor does not start up Heavy noise of fan Heavy noise of compressor Water pump does not run or runs abnormally Compressor starts or stops frequently The unit does not heat although compressor is running Poor efficiency of hot water heating Power supply has problem. Connection wire is loose. 3 Malfunction of mainboard. Malfunction of compressor. Fixing bolt of fan is loose. Fan blade touches shell or grill. 3 Operation of fan is unreliable. Liquid slugging happens when liquid refrigerant enters into compressor. Internal parts in compressor are broken. Malfunction of power supply or terminal. Malfunction of relay. 3 There is air in water pipe. Poor or excess refrigerant. Poor circulation of water system. 3 Low load. Leakage of refrigerant. Malfunction of compressor. Poor heat insulation of water system. Poor heat exchange of evaporator. 3 Poor refrigerant of unit. Blockage of heat exchanger at water side. 38 Phase sequence is reverse. Check out and re-fix. 3 Find out the reasons and repair. Replace compressor. Re-fix fixing bolt of fan. Find out the reasons and adjust. 3 Replace fan. Check if expansion valve is failure and temp. sensor is loose.if that, repair it. Replace compressor. Find out the reasons and repair. Replace relay. 3 Evacuate. Discharge or add part of refrigerant. Water system is blocked or there is air in it.check water pump, valve and pipeline. Clean water filter or evacuate. 3 Adjust the load or add accumulating devices. Repair by leakage detection and add refrigerant. Replace compressor. Enhance heat insulation efficiency of the system. Check if air in or out of unit is normal and clean evaporator of the unit. 3 Check if refrigerant of unit leaks. Clean or replace heat exchanger.

41 GREE ELECTRIC APPLIACES, IC. OF ZHUHAI Add: West Jinji Rd, Qianshan, Zhuhai, Guangdong, China, Tel: ( ) 858 Fax: ( )