d2itsu FCSD 1V EC FLEX Series, Installation And Maintenance Manual

Page 1: ...FCSD 1V 01 EC FCSD 1V 02 EC CASSETTE 1 WAY FCSD 1V EC MOTOR Serie FCSD 1V EC FLEX Edition R00 Models INSTALLATION AND MAINTENANCE MANUAL ...

Page 2: ...anage every stage 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 WEEE MARK Quality Controlled from Start to Finish All products conform to the WEE...

Page 3: ...Layout and Ceiling Opening 18 Electrical Connection 20 Mounting Front Panel Assembly 21 Start Up 21 Maintenance 22 For Units Out Of Use for Extended Period 22 Extra Maintenance 22 Air Vent and Water Purge 23 Control PCB Replacement 23 Motor or Drain Pump Replacement 24 Control Specifications Complete Control PCB EC TOTAL Type Control 25 I O Port Definitions 25 Wiring Diagrams 26 EC TOTAL Type Cont...

Page 4: ...work Setup 43 Master Slave Communication Method 45 Open Modbus protocol 46 Control Specifications Flexible Function PCB FLEXI Type Control 49 Features 49 I O Port Definitions 49 Onboard configuration 49 Wiring Diagram 50 EC FLEXI Type Control 50 Control Logic Specification 51 Unit Power ON OFF 51 Alarm Protection and Error Display 51 Drain Pump Operation 51 Louver Control 51 Modulating Signal Inpu...

Page 5: ...CSD 1V 01 FLEXI EC EC EC Motor Configuration FLEXI Flexible function onboard PCB with drain pump louver and zone control functionality 01 02 Unit Sizes See General Specification section A for cooling and heating capacities FCSD 1V Hydronic Cassette Super Slim Series ...

Page 6: ... with both deflector blades and independent directional vanes enabling supply air to be automatically distributed and air flow and direction to be customized Condensate pump A condensate pump is fitted to carry water out of the unit The pump is fixed to a mounting bracket The pump can be withdrawn from the bottom after removing the front panel A float switch is fitted to stop the cooling action wh...

Page 7: ...B Noise Sound Pressure Level dB A 37 33 23 41 37 26 Sound Power Level 46 42 32 50 46 35 Electrical Power input in cooling mode H W 18 27 M 13 18 L 9 10 Power input in heating mode H W 13 22 M 8 13 L 4 5 Fan Motor Running Current H A 0 16 0 23 Hydraulic Cooling Water Flow Rate H L h 439 547 M 363 439 L 180 278 Cooling Water Pressure Drop H kPa 25 4 36 9 M 18 4 25 4 L 5 6 11 7 Hot Water Flow Rate H ...

Page 8: ...of 61 SK2019 FCSD 1V 01 EC 001_1 Coil Data Model Fin Height mm Fin Length mm Fins inch No of rows No of circuits Tube Diameter mm FCSD 1V 01 02 252 755 18 5 2 3 7 Dimension Drawings All dimensions shown in mm ...

Page 9: ... 4 33 6 33 5 34 5 39 5 315 0 Hz 35 8 31 8 19 0 19 0 23 5 26 9 27 8 31 8 34 9 35 8 36 9 38 8 400 0 Hz 35 0 30 3 21 2 21 2 22 9 23 5 26 9 30 3 34 2 35 0 36 6 39 1 500 0 Hz 36 9 31 5 25 0 25 0 26 6 27 1 29 2 31 5 33 9 36 9 39 7 42 1 630 0 Hz 39 8 35 3 22 4 22 4 26 1 29 1 32 4 35 3 36 9 39 8 40 9 42 7 800 0 Hz 37 3 31 8 16 8 16 8 22 1 24 7 28 5 31 8 35 0 37 3 38 9 41 2 1000 0 Hz 40 1 33 5 19 1 19 1 22...

Page 10: ... 4 39 5 315 0 Hz 38 5 35 8 23 5 19 0 23 5 26 9 27 8 31 8 34 9 35 8 36 9 38 5 38 8 400 0 Hz 38 5 35 0 22 9 21 2 22 9 23 5 26 9 30 3 34 2 35 0 36 6 38 5 39 1 500 0 Hz 40 2 36 9 26 6 25 0 26 6 27 1 29 2 31 5 33 9 36 9 39 7 40 2 42 1 630 0 Hz 41 4 39 8 26 1 22 4 26 1 29 1 32 4 35 3 36 9 39 8 40 9 41 4 42 7 800 0 Hz 40 0 37 3 22 1 16 8 22 1 24 7 28 5 31 8 35 0 37 3 38 9 40 0 41 2 1000 0 Hz 43 3 40 1 22...

Page 11: ...Body 3 Way Valve Body Valve Code valve body ON OFF thermoelectric actuator Valve Body Dimensions mm DN A B C D SGS14HFCA 23020101 D15 G1 2 52 47 19 5 63 Valve Code valve body ON OFF thermoelectric actuator Valve Body Dimensions mm DN A B C D SGS14HFCA 23020102 D15 G1 2 52 70 40 86 DN 3 4 ...

Page 12: ...0B 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 Imax 150mA 250mA 250mA Wires 2 wire 2 wire 3 wire red blue black ...

Page 13: ...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 14: ...eater Optional and standard accessories supplied with the unit are dependent on control configuration type Control Configuration Type Accessory list TOTAL Complete function on board PCB with integrated group control functionality FLEXI Flexible function on board PCB with drain pump louver and zone control functionality IR remote handset SGS14HFCA 16000101 Optional 1 pc N A Wired wall pad SGS14HFCA...

Page 15: ...o circulate throughout the room and allow the minimum distance required for technical maintenance operation 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 the unit and the packaging must be checked for damage sustained in transit and if necessary a damage claim must be filed with the sh...

Page 16: ... of the unit If installation of unit includes using a lift insert a plywood sheet between the unit and the lift forks to avoid damaging unit Figure B 5 1 It is recommended to locate the unit near one side of room to ensure 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 su...

Page 17: ... unit to provide installation and service Figure B 6 Model B mm FCSD 1V 01 02 Minimum 10 Condensate Drainage Connection The unit is fitted with a condensate pump with a maximum of 500mm lift Figure B 7 1 The unit is provided with a 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 2 Insulate...

Page 18: ... state actuation 2 24VAC 2 way or 3 way modulating valves with 0 10VDC modulating signal motor driven actuation and variable size aperture 10 to 100 FLEXI Valve control requires external wired thermostat See thermostat manual for details Review below table for Valve diameter Model External valve information Type Connector dia inch All models 2 way 3 way 1 2 Valve installations See external valve i...

Page 19: ...osition 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 int...

Page 20: ... Insert support rods into the bracket slot 3 Line up the unit to the supporting bars of the ceiling by tightening the nuts and counter nuts of the suspension rods 4 After connecting the condensate drain piping and piping connections confirm fan coil is level 5 Check to ensure the unit is level Drain will be at lowest point when unit is level 6 Tighten nuts on the suspended rods Clearance between t...

Page 21: ...l at least 5m from any electromagnetic wave source Use shielded sensor cable in where electromagnetic waves exist Install a noise filter if necessary Always take safety precautions before wiring for mains supply See section B 1 for Safety Precautions One standard power cord optional two auxiliary contacts for outdoor unit or Electric Heater one window contact one wired wall pad contact and two coo...

Page 22: ...condensate drain pipe slope Confirm the condensate water pump in good working order Confirm float switch did not loosen or become dislodged during shipping Use the following steps to confirm pump functionality 1 Install the cassette unit in an absolute horizontal position 2 Fill the internal drain pan manually with enough water to confirm the drain pump is working 3 Confirm flow of water through c...

Page 23: ...ean or replace as necessary For Units Out Of Use for Extended Period Prior to restarting the unit Clean or replace the air filters Check and remove any obstructions from the internal drain pan and condensate drain line 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 floa...

Page 24: ... Water Purge Step 1 Remove grille and filter Step 2 Operate air vent water purge valve by turning the knobs Control PCB Replacement Repeat Step 1 at C 3 Step 2 Release 3 to remove Control Box cover Step 3 Remove screws on PCB and install replacement knobs ...

Page 25: ...r or Drain Pump Replacement Repeat Step 1 at C 3 Step 2 Release screws shown below to remove front panel Step 3 Release screws shown below to remove internal drain pan Step 4 Remove Drain Pump Motor mounting screws then replace it Drain Pump Motor ...

Page 26: ...tral N1 Power supply to 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 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 Voltage...

Page 27: ...n1 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 sensor Tr AI2 ...

Page 28: ...Tr 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 A...

Page 29: ...g mode 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 PRO contact setting SW1 1 Window contact remote on off When PR...

Page 30: ... 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 fan coil unit and no wired wall pad is installed the Mode Fan Speed Set temperature and Louver setting 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 ...

Page 31: ...uns at the set speed c If Tr Ts then heat operation is terminated and MTV1 and AUX1 are turned 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 electrical heater...

Page 32: ...i1 38ºC then MTV1 and AUX1 are turned off Then indoor fan maintains its original state c If Ti1 36ºC then MTV1 and AUX1 are turned off Then indoor fan is turned OFF d If the indoor coil temperature sensor is damaged then the post heat time is set for 3 minutes Indoor fan runs at set speed Post heat with electrical heater a Indoor fan will run at Modbus 310000 setting before the unit turns off for ...

Page 33: ...ing cycle until the user changes the mode manually or restarts the unit Should the Ti1 sensor be damaged auto mode will not function Auto heat with electric heater as primary heat source all configuration auto changeover If current running mode is auto cool mode then the control logic will change over to auto heat mode when all the following conditions are met a Ts Tr 1 0 C or 4 ºC if economy cont...

Page 34: ...ical heater a MTV1 MTV2 AUX2 and heater 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 runs 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 el...

Page 35: ...cording to the pre heat and post heat program DEHUMIDIFICATION MODE a MTV1 MTV2 AUX1 and heater are always off b If Tr 25ºC then indoor fan and AUX2 will be ON for 3 minutes and then OFF for 4 minutes c If 16ºC Tr 25ºC then indoor fan and AUX2 will be ON for 3 minutes and then OFF for 6 minutes d If Tr 16ºC then indoor fan and AUX2 will be turned off for 4 minutes e At the end of the above dehumid...

Page 36: ...turned off b Indoor fan speed can be adjusted to low medium and high HEAT MODE Without Electrical 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 speed c If Tr Ts then heat operation is terminated MTV2 and AUX1 are turned off Indoor fan runs at Modbus 310000 se...

Page 37: ...turned off 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 an...

Page 38: ... Fan speed cannot change until it has run for more than 30 seconds 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 to 100 Modulating Valve Control Under Energy Saving Mode If the modulating val...

Page 39: ...er supply Operation parameters are mode set temperature louver s position and the fan speed When power supply resumes or the system is switched on again the same operations as previously set will function On Off Switch On LED Display a This is a tact switch to select Cool Heat Off operation mode b In COOL mode the set temperature of the system is 24ºC with auto fan speed There are no timer and sle...

Page 40: ...r safety switch is opened for 1 second or EC motor RPM is lower than Modbus 310000 setting EH will be turned OFF immediately and report an error and fan speed is changed to high speed Once the contact is returned to the closed position 180 seconds reset the error and the heater will start again When the EH safety switch is opened 3 times within 60 minutes the heater is not allowed to start anymore...

Page 41: ... 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 heat protection Green LED blinks 6 ti...

Page 42: ...s 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 ...

Page 43: ...ontrol Handset to 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 aut...

Page 44: ... 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 i If the total length of wire is more than 1000m please use shielded wire in order to protect the signal transmission ii Complete wire connection First unit Middle unit Last unit ...

Page 45: ...wire contact by using a multimeter 3 Check 1 and 2 3 and 4 5 and 6 to be sure the connections are correct 4 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 46: ...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 47: ...re 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 10...

Page 48: ...nd 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...

Page 49: ...l 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 4000...

Page 50: ...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 motor CN4 5 wire connection Stepping motor CN1 2 Low voltage output EH rela...

Page 51: ...N2 N1 L1 AI2 DI S4 S3 S1 PROG1 L M H EH COM MOTOR3 V1 V2 Lo Med Hi N1 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 2 pipe sensor Ti1 MOTOR1 MOTOR2 MOTOR4 EC W1B unit wiring scheme IPA19 DL EC W1B BL GY WH OR BR YL CN4...

Page 52: ...Ti1 14ºC the drain pump turns ON ii If 14ºC Ti 16ºC the drain pan keeps original state iii If Ti1 16 ºC the drain pump turns OFF b When the unit turns OFF and the drain 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 m...

Page 53: ...or RPM 300 b If EC motor failure or EC motor RPM is lower than 300RPM EH relay is opened at once Low Temperature Protection of Indoor Coil in Winter This is frost protection for when the unit is off to prevent water in the coil and room from freezing Unit is in Standby Mode If Ti1 2 ºC for 2 minutes report error code and Buzzer is beeping for 3 minutes ...

Page 54: ...ps 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 3s No EC motor feedback 1 Check DIPB SW5 and ...

Page 55: ...r unit its settings are automatically sent to the slave units Auto Cool Heat operation will be applicable in 4 pipe system only Swing function is not applicable European version only uses degree C setting Swing It is not available Interchange o F and o C on Display Press up and down buttons for 3 seconds then release ...

Page 56: ... 61 SK2019 FCSD 1V 01 EC 001_1 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 57: ... 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 on off icon is on when timer on off is set on that day 4 Swing or Sleep s...

Page 58: ...de fan speed swing and sleep Press to set 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 SP...

Page 59: ... 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 hea...

Page 60: ...6 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 1...

Page 61: ...1 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 9...

Page 62: ...tage 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 Ti...

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