Polar Air Coanda CHV2-01-P Page 26 Installation, Operation And Service Manual Download | Manualshive

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Page 25 of 67

SK2018 CHV2-V/P-ECM-001

CHV2-03

580 x 1187: Dimensions for Opening

606 x 1050: Suspension Bolts

(All dimensions shown in mm)



Mark position of field supplied suspension rods, water lines, condensate drain pipe, line voltage and low voltage wiring.



Properly attach suspension rods to structure above.



Do not tighten nuts and counter nuts. This should only be done after all connections are made and leveling of unit is
confirmed.



Verify installation accommodates proper condensate drainage to pump.



Be careful while lifting fan coil unit into position. Do not lift the unit by condensate tray.

Counternut

Washer

NUT

Rod

Nut

50

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Summary of Contents for Coanda CHV2-01-P

Page 1: ...SK2018 CHV2 V P ECM 001 ...

Page 2: ...tage in the manufacturing of our products Throughout the production process we maintain strict control starting with our extensive resources in research and development through to the design and manufacture of almost every individual component from molded plastics to the assembly of units and controllers EUROVENT CERTIFICATION Quality Controlled from Start to Finish Our highly trained staff and st...

Page 3: ... Valve Installation 21 B 11 Fresh Air and Branch Duct Connection 22 B 12 Suspension Bolts Layout and Ceiling Opening 24 B 13 Suspension Installation 26 B 14 Interconnecting Wiring 27 C Maintenance 28 C 1 For Units Out Of Use for an Extended Period 28 C 2 Extra Maintenance 28 C 3 Air Vent and Water Purge Valve 28 C 4 Filter Removal and Cleaning 29 C 5 Control Box Replacement 29 C 6 Condensate Drain...

Page 4: ...g System 48 E 1 Master Slave Network 48 E 1 1 Master Unit Control Settings 48 E 1 2 Master Slave Network Setup 49 E 1 3 Master Slave Communication Method 51 E 2 Open Modbus protocol 52 F Control Specifications Flexible Function PCB W Type Control 55 F 1 Features 55 F 2 I O Port Definitions 55 F 3 Onboard configuration 55 F 4 Wiring Diagrams 56 F 5 Control Logic Specifications 58 F 5 1 Unit Power O...

Page 5: ... integrated group control functionality W Flexible function on board PCB with drain pump and zone control functionality P Chilled Hot Water 4 Pipe V Chilled Hot Water 2 Pipe VEH Chilled Water 2 Pipe with Electric Heater 01 03 Unit Sizes See General Specification section A for cooling and heating capacities CHV2 Coanda Effect Hydronic Series ...

Page 6: ...anent magnet brushless EC motor with preliminary 3 speed setting that allow for precise air balancing Condensate pump A condensate pump is fitted to carry water out of the unit The pump can be withdrawn from the side casing by removing screws A float switch is fitted to stop the cooling action should the pump become blocked or fail Fresh air The fresh air system for CHV2 unit allows up to 15 of un...

Page 7: ... Sound Power Level Outlet e 52 46 39 47 42 37 54 46 38 Electrical Power input in cooling modee H W 25 20 28 M 14 12 15 L 9 5 10 10 Power input in heating modee H 25 20 28 M 14 12 15 L 9 5 10 10 Fan Motor Running Current H A 0 22 0 17 0 24 Hydraulic Cooling Water Flow Rate H L h 281 354 518 M 212 294 393 L 161 257 330 Cooling Pressure Drope H kPa 12 7 10 8 22 4 M 9 8 9 17 4 L 7 6 7 8 14 7 Heating W...

Page 8: ...2 36 53 44 37 Electrical Power input in cooling modee H W 25 20 28 M 14 12 15 L 10 10 10 Power input in heating modee H W 20 15 23 M 9 7 10 L 5 5 5 Hydraulic Cooling Water Flow Rate H L h 281 355 520 M 217 296 404 L 167 257 341 Cooling Pressure Drope H kPa 12 7 10 8 22 4 M 8 1 7 9 14 6 L 5 3 6 2 10 9 Heating Water Flow Rate H L h 115 161 217 M 96 136 169 L 71 115 138 Heating Pressure Drope H kPa 5...

Page 9: ...ts Tube Diameter inch CHV2 01 V 200 458 13 3 2 3 8 CHV2 02 V 200 758 13 3 3 3 8 CHV2 03 V 200 1058 13 3 3 3 8 4 Pipe Systems 1 row Auxiliary Heating Coil Model Fin Height mm Fin Length mm Fins inch No of rows No of circuits Tube Diameter inch CHV2 01 P 200 458 13 1 1 3 8 CHV2 02 P 200 758 13 1 1 3 8 CHV2 03 P 200 1058 13 1 1 3 8 ...

Page 10: ...Page 9 of 67 SK2018 CHV2 V P ECM 001 Dimensional Drawings 595 595 595 595 895 1195 ...

Page 11: ...3 1 315 0 24 0 26 8 29 6 31 9 35 4 33 8 35 1 37 3 37 0 38 4 39 7 42 0 42 7 44 7 43 2 46 3 400 0 22 5 24 7 27 9 29 2 31 8 33 0 34 6 35 4 36 2 37 3 40 7 40 9 42 8 42 4 43 4 45 0 500 0 23 1 25 4 27 7 29 8 33 0 34 3 35 3 36 9 37 7 40 8 41 9 43 4 43 4 45 6 47 3 48 6 630 24 6 27 2 30 6 32 5 35 9 37 0 38 1 40 5 41 1 41 8 44 1 46 0 47 3 47 2 49 2 48 9 800 22 0 24 0 26 1 29 2 30 1 32 2 34 5 36 2 37 5 39 1 ...

Page 12: ...8 7 29 5 32 1 33 5 34 8 35 0 37 7 39 4 39 5 40 9 40 6 43 7 43 3 45 4 46 1 48 2 400 0 27 5 29 4 31 4 32 7 35 2 35 6 37 1 38 4 40 0 40 1 41 0 42 0 44 4 44 5 44 9 46 6 500 0 25 6 27 8 30 4 31 9 34 5 36 2 37 5 38 9 39 3 41 2 42 6 44 2 44 7 45 7 46 3 47 2 630 26 5 29 0 31 7 34 2 37 6 38 1 40 6 42 0 42 9 45 0 45 8 47 6 47 8 49 1 50 5 51 5 800 24 2 27 6 29 9 32 4 34 4 36 9 38 9 39 9 41 6 42 7 44 7 45 4 4...

Page 13: ... 0 48 5 315 0 28 5 30 2 33 5 36 7 36 7 37 5 39 5 40 1 43 2 42 8 44 9 44 3 48 2 47 7 49 0 50 0 400 0 28 8 31 6 33 9 35 8 35 8 38 4 39 6 40 8 43 9 43 4 46 1 45 4 47 0 48 1 48 9 50 4 500 0 25 9 28 3 31 3 34 9 34 9 36 0 37 0 38 9 41 2 41 4 43 0 45 0 45 6 46 3 46 9 47 9 630 29 0 31 6 35 1 37 7 37 7 40 8 42 8 43 5 45 5 46 4 47 8 49 7 50 2 50 9 52 5 54 1 800 26 7 30 2 32 6 35 9 35 9 38 2 39 5 41 0 42 8 4...

Page 14: ...Valve Body Differential Pressure Chart Valve Code valve body ON OFF thermoelectric actuator Valve Dimensions mm DN A B C D SGS14HFCA 23020102 D15 G1 2 52 70 40 86 Valve Code valve body ON OFF thermoelectric actuator Valve Dimensions mm DN A B C D SGS14HFCA 23020101 D15 G1 2 52 47 19 5 63 ...

Page 15: ...ECM 001 Actuator Model DR 16 230B DR 16 24B DR 15B 24B Normal closed Normal closed Normal closed Voltage 230Vac 24Vac 24Vac Working force 90 125N 90 125N 90 125N Time 4 5min 4 5min 4 5min Power 3W 3W 3W Full stroke 3 5mm 3 5mm 5 0mm ...

Page 16: ...ervicing fan coil unit should be performed by qualified service personnel only This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or persons lacking in experience and knowledge of the appliance unless they have been given supervision or instruction concerning it User of this appliance is responsible for his her own safety Warra...

Page 17: ...d optional Electric Heater compatibility Optional and standard accessories supplied with the unit are dependent on control configuration type Control Configuration Type Accessory list S1 Complete function on board PCB with integrated group control functionality W1 Flexible function on board PCB with drain pump and zone control functionality Plug and play control box with complete function controll...

Page 18: ...r diverting a small part of the treated air into a neighboring room They must be installed in such a way as to enable treated air to circulate throughout the room and allow the minimum distances required for technical maintenance operations It is advisable to place the unit close to the installation site without removing it from packaging Do not put heavy tools or weights on packaging Upon receipt...

Page 19: ...e optimum air distribution Figure B 5 2 Generally the best louver position is the one which allows air diffusion along the ceiling Alternative positions can be selected Confirm sufficient space is provided to allow removal of panels from the ceiling in the selected position and to allow enough clearance for maintenance and servicing operations Figure B 5 1 Figure B 5 2 Installation and False Ceili...

Page 20: ...connections with two spanners Condensate Drainage Connection The unit is fitted with a condensate pump with a maximum of 500 mm lift The unit is provided with a Ø25 4 mm ABS drainage outlet Confirm drain outlet has not been damaged before connecting drain pipe to unit Discharge pipe may be connected with hose clamp Figure B 7 1 Insulate drain pipe after installation Figure B 7 1 CAUTION The draina...

Page 21: ...1 2 Make sure the drain pan is horizontal 3 Tighten the two screws while making sure the external drain pan is installed flush against the fixing plate Figure B 8 2 4 When the installation is completed it is necessary to wrap the connecting pipe with thermal insulation to prevent condensation on ceiling tiles Figure B 8 1 Figure B 8 2 External Drain Pan Internal Drain Pan ...

Page 22: ...03 2 way 3 way 1 2 See drawings of external valve installation below Piping for 2 Pipe System Piping for 4 Pipe System 3 Way 4 Port Valve 1 2 Horizontal Drain Pan Water Outlet 1 2 Water Inlet 1 2 3 Way 4 Port Valve 1 2 for Cooling Coil 3 Way 4 Port Valve 1 2 for Heating Coil Hot Water Inlet 1 2 Horizontal Drain Pan Hot Water Outlet 1 2 Cold Water Outlet 1 2 Cold Water Inlet 1 2 ...

Page 23: ...connection is 100 m3 h There are two openings for connecting fresh air ducts and one opening for connecting a branch duct Flanges and conduits can be installed onto casing Conduits can be flexible polyester with spring core or corrugated aluminum Dia 100mm externally insulated Flanges spigots are available as separate accessory items Flange Dimensions shown in mm ...

Page 24: ...esh air intake connections 2 Each sticker is at the center of a knock out hole underneath the casing insulation Use a cutter and follow along the pre cut circular marking as shown and trim off the insulation 3 Knock out the pre cut hole 4 Connect the flange onto the opening with four tapping screws ø 3 mm x 12 mm All dimensions shown in mm ...

Page 25: ...d Ceiling Opening Using the installation template open the ceiling panels and install the suspension bolts as in the images below CHV2 01 580 x 587 Dimensions for Opening 606 x 450 Suspension Bolts CHV2 02 580 x 887 Dimensions for Opening 606 x 750 Suspension Bolts ...

Page 26: ... pipe line voltage and low voltage wiring Properly attach suspension rods to structure above Do not tighten nuts and counter nuts This should only be done after all connections are made and leveling of unit is confirmed Verify installation accommodates proper condensate drainage to pump Be careful while lifting fan coil unit into position Do not lift the unit by condensate tray Counternut Washer N...

Page 27: ...s into the bracket slot 3 Recommended clearance between the unit and false ceiling is 3mm 4 Line up the unit to the supporting bars of the ceiling by tightening the nuts and counter nuts of the suspension rods 5 After connecting the condensate drain piping and piping connections confirm fan coil is level 6 Check to ensure the unit is level Drain will be at lowest point when unit is level 7 Tighten...

Page 28: ...iring Procedures 1 Open the terminal block cover by removing the 4 screws Figure B 13 1 2 Connect power cable to the terminal according to the wiring diagram 3 Connect room temperature sensor and coil temperature sensors to the control box 4 Connect receiver display 5 Connect wall pad optional 6 Slide the control box into the unit casing Figure B 13 2 Figure B 13 1 Figure B 13 2 NOTES Please ensur...

Page 29: ... to restarting the unit Clean or replace the air filters Check and remove any obstruction from the external drain pan and the internal drain pan Extra Maintenance The electrical panel is easily accessible by removing the cover panel Inspection servicing and replacement of internal components such as coil condensate pump float switch and drain pan are accessible via cover panel Be aware of water sp...

Page 30: ... the slot Step 4 Clean the filter and reassemble Control Box Replacement Step 1 Open the return air grille Step 2 Remove front panel after removing the two fixing screws Step 3 Pull out the plug and play control box after removing 4 screws on the control box Step 4 Unplug the wiring on the terminal block and replace with a new control box Front panel fixing screws Front panel fixing screws ...

Page 31: ... 67 SK2018 CHV2 V P ECM 001 Condensate Drain Pump and Float Switch Replacement Step 1 Remove 4 screws from the side casing Step 2 Pull out the condensate pump kit Step 3 Replace it and tighten the 4 screws Screws ...

Page 32: ...Assembly Replacement Step 1 Open the return air grille and remove the front panel by two fixing screws Step 2 Pull out the Fan Deck Step 3 Remove the internal drain pan and coil assembly Step 4 Replace new fan deck or coil assembly Front panel fixing screws ...

Page 33: ...eplace motor or fan blower Electric Heater Replacement Step 1 Unplug PTC Type Electric Heater connector from control box Step 2 Repeat Step 1 to 3 from Section C 7 Step 3 Remove mounting bracket of PTC Type Electric Heater from the coil Step 4 Replace Electric Heater and tighten at the middle of coil Step 5 Reinstall the coil drain pan fan deck and front panel Step 6 Connect Heater connector to th...

Page 34: ...the PCB and all the loads connected to the voltage outputs Earth PE1 Power supply to the PCB and all the loads connected to the voltage outputs Voltage output Fan 1 CN4 Fan 1 driver and motor connection port Fan2 CN5 Fan 2 driver and motor connection port Valve1 MTV1 2 pipe coil circuit valve output chilled hot water valve Voltage output L 4 pipe coil circuit valve output chilled water valve Volta...

Page 35: ...Fan2 OFF 1 Fan1 ON L N Power supply VALVE1 230V on off valve output VALVE2 230V on off valve output WP 230V condensate pump output AUX1 Voltage free contact ON unit in heating mode AUX2 Voltage free contact ON unit in cooling mode ON OFF Occupancy contact CN1 2 Stepping motor output CN3 Serial BUS contact CN4 Fan motor 1 output CN5 Fan motor 2 output TTL Wired wall pad AI1 Return air temperature s...

Page 36: ...r LED display IR receiver chilled hot water Ti2 hot water louver stepping moter connections CN2 A B A B S1 S2 FLOAT EH2 EH1 PR2 PR1 AUX2 AUX1 HF MF LF VALVE1VALVE2 WP CONNECT GY RD WH BK BL PUMP L1 N G A1 A1 A2 A2 PRO PRO TERMINAL WH OR BR YL BL L N N N N RY7 BK BL YL GR WH WH RD RD GR GR 485 FUSE FAN cap Electrical heater 1 N 2 3 RD RD FAN cap float control switch for pump YL YL CN1 X DISI AI1 AI...

Page 37: ...ode only available SW8 0 SW7 1 Cooling and heating modes available SW8 1 with EH functioning as primary Master Slave setting SW6 1 Master SW6 0 Slave Preheat temperature setting SW4 1 28ºC SW4 0 36ºC 230VAC on off valve setting SW3 1 With valve SW3 0 No valve 2 pipe 4 pipe system configuration SW2 1 4 pipe system SW2 0 2 pipe system PR O contact setting SW1 1 Window contact remote on off When PROs...

Page 38: ...m failure or cessation of power supply The restored parameter data set depends on the type of user interface a Handset only user interface When the power ON signal is received by the air conditioner and no wired wall pad is installed the Mode Fan Speed and Set temperature will be the same as the handset setting before the last power OFF b Wall pad only OR wall pad and handset user interface When t...

Page 39: ...off Indoor fan runs at Modbus 310000 setting d The range of Ts is 16 30ºC e Indoor fan speed can be adjusted to low medium high and auto f When turned on MTV1 requires 30 seconds before it is fully open g When turned off MTV1 requires 120 seconds before it is fully closed Heat mode with Electric Heater as booster a MTV2 and AUX2 are always off b If Tr Ts 1ºC or 4ºC if economy contact is activated ...

Page 40: ...is damaged then the protection mode will be overridden and the unit will work according to the pre heat and post heat program DEHUMIDIFICATION MODE a MTV2 AUX1 and heater are always off b If Tr 25ºC then MTV1 and AUX2 will be ON for 3 minutes and then OFF for 4 minutes c If 16ºC Tr 25ºC then MTV1 and AUX2 will be ON for 3 minutes and then OFF for 6 minutes d If Tr 16ºC then MTV1 and AUX2 will be t...

Page 41: ...at 200rpm d The range of Ts is 16 30ºC e Indoor fan speed can be adjusted to low medium high and auto Heat mode with Electric Heater as booster a MTV1 MTV2 and AUX2 are always off b If Tr Ts 1ºC or 4ºC if economy contact is activated then heat operation is activated and AUX1 is turned on Indoor fan runs at the set speed c If Tr Ts then heat operation is terminated and AUX1 is turned off Indoor fan...

Page 42: ...ndoor fan runs at set speed FAN MODE a Indoor fan runs at the set speed while heater MTV1 MTV2 AUX1 and AUX2 are turned off b Indoor fan speed can be adjusted to low medium and high HEAT MODE Without Electric Heater a MTV1 AUX2 and are heater always off b If Tr Ts 1ºC or 4ºC if economy contact is activated then heat operation is activated MTV2 and AUX1 are turned on Indoor fan runs at the set spee...

Page 43: ...f indoor fan remains on and runs at high speed b If Ti2 70ºC then MTV2 and AUX1 are turned on indoor fan remains on and runs at set speed c If the indoor coil temperature sensor is damaged then the protection mode will be overridden and the unit will work according to the pre heat and post heat set times DEHUMIDIFICATION MODE a MTV2 AUX1 and heater are always off b If Tr 25ºC then MTV1 and AUX2 wi...

Page 44: ...re than 30 seconds Fan speed is regulated according to the profile below After 30 seconds the fan speed is modulated according to the difference between the room temperature and the set temperature The controller adjusts the motor signal input from 0 to 5VDC by PID calculation every 10 seconds The air flow is adjusted from 15 to100 Modulating Valve Control Under Energy Saving Mode If the modulatin...

Page 45: ...t switch is closed MTV1 is on Float switch is opened when unit is on If the float switch is opened continuously 5 seconds the drain pump will work and MTV1 will remain off After the float switch is closed the drain pump will run for an additional 5 minutes If the float switch is opened for 10 minutes continuously then MTV1 will remain off the indoor fan will run at set speed and the system reports...

Page 46: ...EH if present is switched on 5 Indoor fan is turned on at low speed If Tr 5ºC for 2 minutes 1 MTV1 is turned OFF 2 AUX1 is open 3 DA2 is 0 VDC 4 Electric Heater is turned OFF 5 Indoor fan Switched OFF If Unit with SW2 1 4 pipe system is in Standby Mode If Tr 2ºC for 2 minutes 1 MTV2 is turned ON 2 AUX1 is closed 3 DA3 is 10 VDC 4 If Ti2 5ºC for 2 minutes EH if present is switched ON 5 Indoor fan i...

Page 47: ...not 2 Check if sensor s resistance is correct or not Indoor coil sensor 1 failure Green LED blinks 4 times stops for 3s Ti1 sensor unplugged or damaged 1 Check if Ti1 plug is connected or not 2 Check if sensor s resistance is correct or not Indoor coil low temperature protection Green LED blinks 5 times stops for 3s Water temperature is lower than 3 ºC Check the water temperature Indoor coil over ...

Page 48: ...stops for 3s Check unit 15 communication plug and fix it Unit 16 failure RED LED blinks 16 times stops for 3s Check unit 16 communication plug and fix it Unit 17 failure RED LED blinks 17 times stops for 3s Check unit 17 communication plug and fix it Unit 18 failure RED LED blinks 18 times stops for 3s Check unit 18 communication plug and fix it Unit 19 failure RED LED blinks 19 times stops for 3s...

Page 49: ...Set Master Control Unit 1 Connect all the units PCBs according to the wire color and type of connector 2 Select the master unit by setting DIPA S1 SW6 to ON 1 in the PCB 3 Ensure the DIPA S1 SW6 is set to OFF 0 in the PCB on each slave unit 4 Switch on the units by connecting the main power supply 5 Using the handset set the operation parameters for the master unit which will automatically send th...

Page 50: ...x 2 Communication plug A B A B is printed on the main PCB When you connect the wires please ensure connection of A to A and B to B 3 Connection wire If the total length of wire is more than 1000m please use shielded wire in order to protect the signal transmission Complete wire connection First unit Middle unit Last unit ...

Page 51: ...e contact by using a multimeter c Check 1 and 2 3 and 4 5 and 6 to be sure the connections are correct d If the resistance between two wire contacts is too high please check and reconnect the wire contacts 4 Reconnect the communication plug to the control box First unit Middle unit Last unit 1st contact 2nd contact 3rd contact 4th contact 5th contact 6th contact ...

Page 52: ...1 SW5 DIPA S1 SW4 DIPA S1 SW3 DIPA S1 SW2 DIPA S1 SW1 Unit No Remark 1 0 0 0 0 0 01 Master 0 0 0 0 0 1 02 Slave 0 0 0 0 1 0 03 Slave 0 0 0 0 1 1 04 Slave 0 0 0 1 0 0 05 Slave 0 0 0 1 0 1 06 Slave 0 0 0 1 1 0 07 Slave 0 0 0 1 1 1 08 Slave 0 0 1 0 0 0 09 Slave 0 0 1 0 0 1 10 Slave 0 0 1 0 1 0 11 Slave 0 0 1 0 1 1 12 Slave 0 0 1 1 0 0 13 Slave 0 0 1 1 0 1 14 Slave 0 0 1 1 1 0 15 Slave 0 0 1 1 1 1 16 ...

Page 53: ... used to test unit Valid Error code table Error code Description Definition 01 01H Invalid commands Received commands beyond valid commands 02 02H Invalid data address Data addresses beyond valid data address 03 03H Invalid data Data beyond definition range 04 04H Write data not successful Write data did not succeed Coils table Description Address Type Remark Unit ON OFF 100000 R W Sleep mode 1000...

Page 54: ... set timer function Minute 300008 W Calibration wired wall pad and set timer function Second 300009 W Calibration wired wall pad and set timer function Hours in Timer on 300010 R W Timer ON Minute in Timer on 300011 R W Timer ON Hours in Timer off 300012 R W Timer OFF Minute in Timer off 300013 R W Timer OFF Icon of Timer ON or OFF 300014 R W BIT0 Icon of Timer ON BIT1 Icon of Timer OFF 1 enable 0...

Page 55: ...heater failure Bit8 Motor1 Error Bit9 Motor2 Error Bit10 System parameters error Bit11 Anti frozen error Bit12 Reserved Bit13 Reserved Bit14 Reserved Bit15 Reserved Fan speed status 400006 R Low 04 H Medium 02 H High 01 H Mode status 400007 R Cooling mode 01 H Dehumidify mode 02 H Fan mode 04 H Heating 08 H Setting temperature status 400008 R Testing only Room temperature in wall pad status 400009...

Page 56: ... thermostat Phase L1 External 230VAC power supply connection to the PCB Neutral N1 N2 Earth GND Signal Input Modulating signal Low voltage modulating signal input standard 0 5 VDC S1 OPEN optional 0 10 VDC S1 CLOSED Digital input Programming interface TTL Low voltage digital signal input for board programming Float switch Float Voltage free NC Voltage output Water pump PUMP Voltage output L EC mot...

Page 57: ... A FLOAT B RLY1 ALARM FUSE1 RLY2 EMI1 EMI2 PE N2 N1 L1 AI2 DI S4 S3 S1 PROG1 EH L M H AUTO COM MOTOR3 V1 V2 Lo Med Hi C R RD RD float control switch for pump BL BK GY JP3 JP4 JP1 BL BL RD WH BR OR EC moter PUMP WH JP2 JP6 JP7 8 BL RD WH BR OR EH or heating valve signal 230Vac High speed signal 230Vac Med speed signal 230Vac Low speed signal 230Vac COM 24VAC 2 pipe sensor Ti1 MOTOR1 MOTOR2 MOTOR4 E...

Page 58: ...ting status signal contact DA1 0 10Vdc signal DA2 0 10Vdc signal A B RS485 port AC EC S4 Thermostat Wiring scheme Rt MV2 MV1 AI1 Indoor coil sensor TI1 AI2 0 10VDC EC Motor control signal X DIS Led display TTL Wired wallpad used to set motor rpm Legend ALARM Pump failure it s opened PUMP Water pump output CN1 CN2 Stepping motor CN4 EC motor output BK IC BG1 X DIS AI1 TTL CN1 CN2 HV EH Relay PUMP F...

Page 59: ...in pump is ON I The drain pump will remain ON for 5 minutes and then turn OFF c At any time I If the float switch is OPEN the drain pump will turn ON II If the float switch is OPEN and then CLOSES the drain pump will remain ON for 5 minutes and then turn OFF Modulating Signal Input a When the Auto ON OFF 230VAC input is ON the fan motor rpm speed shall be modulated by the low voltage modulating si...

Page 60: ...sensor 1 failure Green LED blinks 4 times stops for 3s Ti1 sensor connection is damaged 1 Check if Ti1 plug is connected or not 2 Check sensor s resistor is good or not Water pump failure Green LED blinks 7 times stops for 3s Float switch is opened 1 Check if the condensate water pipe is connected or not 2 Check if the pump is functioning or not EC motor failure Green LED blinks 9 times stops for ...

Page 61: ...are automatically sent to the slave units Auto Cool Heat operation will be applicable in 4 pipe system only Swing Louver functions are not applicable European version only uses degree C setting Swing It is not available Louver It is not available Interchange o F and o C on Display Press up and down buttons for 3 seconds then release ...

Page 62: ...f 67 SK2018 CHV2 V P ECM 001 Wired Wall Pad Controller Day display Mode display Temperature display Fan speed display Timer display Real Time display Master Slave Button display Network icon Sleep icon Key lock ...

Page 63: ...terface and timer icon is on When ON blinks press to set timer date from Monday to Sunday Press to set hour and minute of timer on or timer off alternately ON blinks when timer is set to on and OFF blinks when timer is set to off Press or to set timer on off time Press to confirm settings and exit If no operation within 6 seconds it will automatically exit and the setting will not be saved Timer o...

Page 64: ...et the selected parameter 1 ON OFF unit Press button once H blinks in master slave display area then press to turn on unit H blinks or turn OFF unit S blinks 2 Temperature Press twice temperature blinks in temperature display area then press or to set temperature 3 Mode Press three times Mode icon blinks in mode display area then press to select mode 4 FAN SPEED Press four times fan speed icon bli...

Page 65: ...area and Error code blinks on real time minute area The Error codes display alternately if more than one error is detected If there is no slave unit online only error code is shown in real time minute area Error code table Error reason Error code Indoor coil sensor 2 faulty E2 Return air sensor faulty E3 Indoor coil sensor 1 faulty E4 Indoor coil low temperature protection E5 Indoor coil over heat...

Page 66: ... 16 18 84 5 88 11 91 85 16 14 69 15 05 15 41 17 79 8 83 17 86 64 17 14 03 14 37 14 7 16 75 39 78 53 81 76 18 13 41 13 72 14 03 15 71 26 74 18 77 19 19 12 81 13 1 13 4 14 67 37 70 1 72 9 20 12 24 12 52 12 79 13 63 73 66 26 68 88 21 11 7 11 96 12 22 12 60 3 62 67 65 1 22 11 19 11 43 11 67 11 57 08 59 28 61 55 23 10 71 10 93 11 15 10 54 05 56 1 58 22 24 10 24 10 45 10 66 9 51 19 53 12 55 08 25 9 8 10...

Page 67: ... 88 0 9284 0 9697 1 012 52 3 225 3 326 3 43 89 0 8998 0 9401 0 9818 53 3 105 3 204 3 305 90 0 8721 0 9115 0 9522 54 2 99 3 086 3 185 91 0 8455 0 8839 0 9237 55 2 88 2 974 3 07 92 0 8198 0 8573 0 8961 56 2 774 2 866 2 959 93 0 795 0 8316 0 8696 57 2 673 2 762 2 854 94 0 7711 0 8069 0 8439 58 2 576 2 663 2 752 95 0 748 0 783 0 8192 59 2 483 2 568 2 655 96 0 7258 0 7599 0 7953 60 2 394 2 477 2 562 97...

Page 68: ...ge Check fuse on board Place in the ON position Check the room control Check fan motor Filter clogged Air flow obstructed Room control regulation Incorrect water temperature Air present Insufficient output Clean the filter Remove obstacles Check the room air sensor Check the water source Check the air vent Contact between metal parts Loose screws Noise and vibrations Check for loosening parts Tigh...

Page 69: ...Page 68 of 67 SK2018 CHV2 V P ECM 001 ...

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