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16

Electrical Connections

Before connecting the power supply, please confirm the 

unit suits the power supply. 

 

Breaker protection must be installed according to 
the max value stated in the nameplate attached to 
the unit inside of the front panel.

 

The equipment must be installed via an isolator 
switch with a minimum breaking gap of 3 mm

 

The power supply must conform to the specification 

on the unit’s nameplate. The supply voltage must 

be within the range specified in the electrical data 

table.  For wiring connection, refer to the electric 
wiring diagram on the inside panel of the unit.

 

When the building is equipped with a RCD the heat 
pump should be equipped with a separate one

IMPORTANT:

During the installation of the unit, first make the 
water connections and then electrical connections. 
If the unit is to be removed first disconnect the 
electrical connections, then the water connections to 
reduce the chance of an electrical shock.

WARNING:

Disconnect the main power supply switch before 
servicing the system or handling any internal parts 
of the unit.
In case of any major malfunction turn the unit off, 
disconnect the mains power supply and contact a 

qualified service engineer.

Power Connection

Summary of Contents for AS10/LF

Page 1: ...AIR TO WATER HEAT PUMP Split EVI Operation installation maintenance manual V 201510 The installation of this unit is to adhere to all local Building Codes and Standards...

Page 2: ...9 System Overview 11 Installation 13 Electrical connection 16 User Guide 20 Service Parameters 33 Service Guide 34 Commissioning and Adjusting 41 Commissioning Form 42 Alarms 43 Maintenance 46 Dimens...

Page 3: ...d state 4 The liquid state refrigerant is expanded in thermostatic expansion valve and become low pressure and low temperature liquid refrigerant 5 The cycle repeats 6 When EVI condition is met EVI ex...

Page 4: ...e N none V with 3 way valve N none P with pump N none 6 60Hz default 50Hz B 220V 3 50 60Hz C 380V 3 50Hz 380 400V 3 60Hz D 380 415V 3 50Hz 440V 3 60Hz P 208 230V 1 60Hz Q 220 240V 1 50Hz Rated heating...

Page 5: ...high tension side pressure of 5 3MPa G or over 2 Charge hose Only for R410A Use pressure performance of 5 09MPa G or over 3 Electronic scale 4 Gas leak detector Use the detector for R410A 5 Vacuum pu...

Page 6: ...mage beyond repair to the compressor Do not use oxygen to purge lines or to pressurize a unit for any purpose Oxygen gas reacts violently with oil grease and other common substances Use only refrigera...

Page 7: ...of condensation water when running in high humidity zones There is also a large run off when the unit melts ice during a defrost cycle Avoid locations exposed to machine oil vapour salty air thermal...

Page 8: ...6 Positioning Outdoor unit 1600mm 600mm 550mm 600mm Indoor unit 800 50 800 800...

Page 9: ...g EV01 indoor pump mode to work by regulation Inlet water temp sensor should be taken out of the unit and put into buffer tank s sensor pocket The Inlet water temp sensor is located on inlet water pip...

Page 10: ...be taken during winter 1 Drain the water from the system using the drains in the lower part of the unit 2 Add the correct percentage of glycol antifreeze to the water circuit 3 The power to the unit m...

Page 11: ...Automatic water supplement valve External LPS Electronic low pressure transmitter Internal SAK Safety valve External HPS Electronic high pressure transmitter Internal FL Filter External ET Suction gas...

Page 12: ...will start again when Inlet water temperature RTc ST04 b When SF04 enable compensation YES ST02 is replaced by Set temperature at heating ST05 ST06 10 ST05 OT Refer to chapter Heating compensation cur...

Page 13: ...Outdoor temperature sensor Internal VVB Hot water tank External HT Hot water temperature sensor Internal FI Soft joint External ET Suction gas temperature sensor Internal EXP Diaphragm expansion vess...

Page 14: ...as heating booster It will stop heating when Outlet water temperature B2 ST02 ST04 2 When SF04 enable compensation YES ST02 is replaced by Set temperature at heating ST05 ST06 ST05 OT Refer to chapte...

Page 15: ...sion fouling and deterioration of the pump fittings 5 Protection devices are to be installed to protect the unit from operating outside of its running parameter such as control devices shutoff valve b...

Page 16: ...9 52mm 3 8 15 88mm 5 8 Connection Flare 3 8 Flare 5 8 Minimum copper coil thickness 1 0mm 0 8mm Max pressure 4 5MPa Out diameter copper pipe mm A mm 9 52 13 2 15 88 19 7 Out diameter copper pipe mm R...

Page 17: ...be used when pressurizing and flushing the system Use a vacuum pump to evacuate all air Vacuum for at least one hour and end pressure after evacuation must be 1mbar absolute pressure If the system has...

Page 18: ...iring connection refer to the electric wiring diagram on the inside panel of the unit When the building is equipped with a RCD the heat pump should be equipped with a separate one IMPORTANT During the...

Page 19: ...Temperature sensor must be separated min 20 cm from high voltage power cables to avoid interference which will cause read temperature fluctuating and heat pump can not work normally If the temperature...

Page 20: ...xternal signal like a timer or thermostat etc could be connected to B1 B2 to activate or deactivate the unit s heating function This external signal must be voltage free Note This is a potential free...

Page 21: ...e On Off function A1 A2 switch is activated to turn On Off the hot water function hot water switch A1 A2 is bridged the unit s hot water function is activated An external signal like a timer or thermo...

Page 22: ...o activate and de activate an auxiliary electric heater or a boiler The max current is 1 Amps therefore a contactor must be applied to control auxiliary electric heater or boiler KM2 N L1 PE ELK L2 L3...

Page 23: ...lash to indicate when any alarm happens Press it to re set manual re set alarms after the fault is removed Program Press it to enter main menu Esc In Menu parameter setting mode press it to return to...

Page 24: ...mode Water pump Domestic hot water mode Compressor Domestic hot water mode Heating mode Fan Menu Tree Code Indication Code Indication CM Compressor settings ST Setpoints CN Condenser settings UI User...

Page 25: ...changeover Service Password required Configure and commission applications by setting adjusting parameter values User No password is required Adjust limited values of parameters Access Rights Three g...

Page 26: ...n ON OFF Black cursor flashes on OFF on AC status heat press button it display Press button to enter It displays Press button black cursor flashes on OFF on HW status press button it display press but...

Page 27: ...ating Press Enter button Heating will flash press up or down button to change to Cooling Press Enter button to confirm S01 System mode Cooling It will display B1 RT AC inlet temp B2 ST AC outlet temp...

Page 28: ...ers could be adjusted when the unit is ON or OFF Para meter Descriptions De fault Min Max Unit Res System mode Cooling or heating ST01 Setting temperature at cooling mode 7 ST11 ST12 C 0 1 ST02 Settin...

Page 29: ...5 ST06 ST05 OT ST05 is indoor temperature that the user feel comfortable ST06 is the heating compensation coefficient curve factor you select for the heat pump to work with Increasing ST06 will increa...

Page 30: ...the room temperature is too low You could increase ST05 If the room temperature is too high you could decrease ST05 The temp of the room with floor heating need a long time to stabilize After a ST05...

Page 31: ...ing control temp will be calculated If OT 15 0 actual control temp is 49 0 S11 0T Heat setp 15 0 49 0 If you have your own curve as below you want to have ST 38 when OT 0 and ST 49 when OT 10 Just adj...

Page 32: ...y keyboard before the automatic turning on by the timer this timer ON program is implemented and unit will be turned off automatically when the time of timer OFF has come If the unit is manually turne...

Page 33: ...replacement of the fuse ensure an adequate replacement is used e g not fuse wire The electrical supply must be isolated during a heightened risk of lightning strikes Do not attempt to move the applian...

Page 34: ...It display controller version information Press Down button it goes to Unit type setting Press Enter to confirm when Cooling heating is flashing press Up or Down button to change the value Press Ente...

Page 35: ...ble domestic hot water function YES YES or NO SF13 HW On Off way Keyboard Keyboard or remote SF14 AC On Off way Keyboard Keyboard or remote DF03 Defrost start outdoor temperature 12 3 0 20 0 C 0 1 DF0...

Page 36: ...the two screws at the bottom of front panel as below indication and then Front panel could be removed by pressing the panel downward 2 Unscrews the screws as below indication to remove left panel 3 Th...

Page 37: ...econd s delay switch off fan motor 3 After 30 seconds delay switch off water pump Turn on process at cooling mode 1 Start water pump and 4 way valve check water flow switch 2 5 seconds after water flo...

Page 38: ...stops compressor again when hot water reach set temperature before it revert back to cooling mode Crankcase heater running control N05 When all of conditions below are met compressor crankcase heater...

Page 39: ...rature CN05 fan runs as CN01 ambient temperature CN06 fan runs as CN03 CN06 ambient temperature CN05 fan runs on the speed proportionally between CN03 and CN01 The EC fan input control voltage and spe...

Page 40: ...off when pump is off Pump PWM will starts running for 3 minutes when pump is off for 24 hours to avoid seizure Defrosting control The unit is equipped with hot gas defrosting When the conditions of de...

Page 41: ...n button to Manufacturer Parameter Press Down button it display parameter and data Press Enter to confirm when data is flashing press Up or Down button to change the value Press Enter to confirm Curso...

Page 42: ...S 0 1 SF20 Super heat setup 5 72 99 9 0 1 SF25 Refrigerant type R410A AR01 Low outlet water temperature protection 5 1 10 0 1 AR03 High outlet water temperature protection 58 1 100 0 1 AR04 Water flow...

Page 43: ...p Preparations Filling and Flushing Startup and Inspection The temperature difference between ST RT can be adjusted by increasing the flow rate by either using circulation pumps or control valve Air w...

Page 44: ...LPS Power voltage V Current A Domestic hot water mode 10 minutes after compressor start to run Is a hot water cylinder installed Capacity litres Heating coil diameter mm length m Inlet discharge outl...

Page 45: ...s with their meanings Codes Meaning AL20 Low suction temperature AR08 AL21 High exhaust gas temperature over AR10 AL23 Phase relay AL24 Compressor overload AL32 Low pressure alarms from transmitter ti...

Page 46: ...l appear on the LCD it records instant inlet water temperature RT2 and will return to normal working after inlet water temperature RT RT2 ST04 Water flow switch protection Code AL17 At starting proces...

Page 47: ...temperature SF08 and unit is off state if water flow switch is closing A C auxiliary heater is switched on If water flow switch is opening it does not switch on A C auxiliary heater and displays AL26...

Page 48: ...PR red light on means that phase connection is reversal 3 PL red light on means that there is a loss of one or more phases If AL24 alarm is activated open the control box panel to find the thermal ov...

Page 49: ...ting test verify the following values A Compressor high pressure side discharge pressure B Compressor low pressure side suction pressure C Charge visible in the sight glass D Verify the charge status...

Page 50: ...ed regularly to check the degree of fouling This depends on the environment where the unit is installed areas by the sea can cause increase corrosion and an approved sprayed film coating is recommende...

Page 51: ...48 Dimensions AS10 LF AS13 LF Indoor unit Outdoor unit 633 600 955 600 1023 999 1028 999 1050 650 400 420...

Page 52: ...49 Water Pressure Plots AS10 LF UPM2K 25 60 130 1 230V 50 60 Hz Optional water pump 1 curve AS10 LF m3 h 10 20 30 1 0 2 0 3 0 4 0 40 KPa...

Page 53: ...50 Water Pressure Plots UPM3 FLEX AS 25 70 130 Optional water pump 2 curve AS10 LF...

Page 54: ...51 Water Pressure Plots AS13 LF Optional water pump curve AS13 LF UPML 25 105 130 PWM 1 230V 50 60Hz m3 h 10 20 30 1 0 2 0 3 0 4 0 40 KPa...

Page 55: ...1 1 66 1 62 81 1 66 1 62 1 57 82 1 62 1 57 1 53 83 1 57 1 53 1 49 84 1 53 1 49 1 44 85 1 49 1 45 1 40 86 1 45 1 41 1 37 87 1 41 1 37 1 33 88 1 37 1 33 1 29 89 1 34 1 30 1 26 90 1 30 1 26 1 22 91 1 27...

Page 56: ...29 0 29 35 32 73 4 236 32 27 33 20 1 42 1 43 0 34 0 35 40 26 71 4 120 26 28 27 15 1 62 1 64 0 40 0 41 45 21 92 3 903 21 52 22 32 1 81 1 84 0 46 0 47 50 18 08 3 801 17 72 18 45 2 00 2 03 0 53 0 53 55...

Page 57: ...ction HP 6 Electric heater backup 7 Expansion tank 8 3 way valve 9 Circulation pump 10 11 Main circuit Expansion valve 12 Gas liquid separator 13 EVI Expansion valve 14 Economizer 15 Plate heat exchan...

Page 58: ...or board 22 Grill 23 De icing heater 24 Terminal block 25 Pump relay 26 Transformer 27 Carel controller 28 User interface 29 Compressor contactor 30 Thermal overload relay 31 Backup Heater contactor 3...

Page 59: ...AS13 LF N L1 L2 L3 N KM1 FR1 U11 COMP V11W11 0V 24V TC1 2 1 M1 JQ1 Suction temp sensor Discharge temp sensor Hot water temp sensor Ambient temp sensor Inlet temp sensor OFAN BU YE WH BK FG Vsp Vcc GND...

Page 60: ...wiring diagram Ambient temp sensor OFAN BU YE WH BK FG Vsp Vcc GND RD Vdc DE ICING HEATER L N WIRING DIAGRAM MODEL AS13 LF W The components within the dotted lines are optional parts TO INDOOR UNIT O...

Page 61: ...8 Running current at A7 W35 A 4 9 6 3 Starting current A 53 75 Power Supply 380 415V 3PH 50Hz 380 420V 3PH 50Hz Compressor HITACHI scroll Copeland scroll Condenser Brazed plate heat exchanger Brazed p...

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