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Junkers ZWC 18-3 MFK, Service Manual

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Junkers ZWC 18-3 MFK Service Manual Download Page 37

7.

Yes:

↓

8.

No:

8.

Yes:

If C1 still flashing 

↓

9.

If C1 still flashing? 

↓

8.

No:

↓

9.

9.

Electronic card is out of order

C1

I

S FLASHING

Air pressure switch (APS) opens during operation

Control 

S

tep

Order

Measure

Cheek if fan is operating correctly

Check if the 20 poled connection 
cable damaged.

 Check 7-8 pin for any intermittent 
contact

Change the cable harness

Switch on the appliance.

Switch off the appliance

Cut mains supply

Change the electronic card

Connect to mains supply

Switch on the appliance

Change fan

6 720 660 238  (2008/07)

37

 | 

37

Troubleshooting

Summary of Contents for ZWC 18-3 MFK

Page 1: ......

Page 2: ...WC ZSC 3 and NGVA NGVS 4 ZWE 5 and NGVM NGLM 4 types DHW NTC Flue gas NTC Combustion chamber NTC 35 4 types NGLA NGLS 24 4 types NGVA NGVS 24 4 types MFAP MFAE MFAM types Appliance layaut and hydrauli...

Page 3: ...ystem Only use genuine spare parts Combustible materials Do not store or use any combustible materials paper thinners paints etc in the vicinity of the appliance Combustion Air Ambient Air Keep combus...

Page 4: ...ifold 32 Flame sensing electrode 33 Igniter electrodes 36 Temperature sensor in CH flow 38 System filling loop 43 CH flow 56 Gas valve 63 Adjusting nut for max gas inlet flow volume 64 Adjusting screw...

Page 5: ...27 Automatic air vent 29 Burner with injector manifold 32 Flame sensing electrode 33 Igniter electrodes 36 Temperature sensor in CH flow 38 System filling loop 39 Draught diverter 43 CH flow 56 Gas va...

Page 6: ...ture sensor in CH flow 38 System filling loop 43 CH flow 56 Gas valve 63 Adjusting nut for max gas inlet flow volume 64 Adjusting screw for min gas inlet flow volume 84 Motor 88 3 way valve 102 Inspec...

Page 7: ...perature sensor in CH flow 39 Draught diverter 43 CH flow 56 Gas valve 63 Adjusting nut for max gas inlet flow volume 64 Adjusting screw for min gas inlet flow volume 71 Storage flow pipe 72 Storage r...

Page 8: ...anifold 32 Flame sensing electrode 33 Igniter electrodes 36 Temperature sensor in CH flow 38 System filling loop 39 Draught diverter 43 CH flow 56 Gas valve 63 Adjusting nut for max gas inlet flow vol...

Page 9: ...with injector manifold 32 Flame sensing electrode 33 Igniter electrodes 36 Temperature sensor in CH flow 39 Draught diverter 43 CH flow 56 Gas valve 63 Adjusting nut for max gas inlet flow volume 64...

Page 10: ...2 2 1 ZWE 24 28 5 MFA MFAE 2 2 Hydraulic Diagrams Fig 7 6 720 660 238 2008 07 10 10 Appliance Layout and Hydralic Diagrams...

Page 11: ...Fig 8 6 720 660 238 2008 07 11 11 Appliance Layout and Hydralic Diagrams 2 2 2 ZWE 24 5 MFK...

Page 12: ...2 2 3 ZWC 21 24 28 30 35 3 MFA MFAP MFAE MFAM 12 Appliance Layout and Hydralic Diagrams 6 720 660 238 2008 07 12 Fig 9...

Page 13: ...2 2 4 ZSC 21 24 28 30 35 3 MFA MFAE MFAM 13 Appliance Layout and Hydralic Diagrams 6 720 660 238 2008 07 13 Fig 10...

Page 14: ...ner cover 32 Flame sensing electrode 33 Igniter electrodes 34 Hot water pipe 35 Heat exchanger 36 CH temperature 43 CH flow 44 Hot water flow 45 Gas inlet 46 Cold water inlet 47 CH return 48 Discharge...

Page 15: ...nt 29 Injector jets 30 Burner cover 32 Flame sensing electrode 33 Igniter electrodes 34 Hot water pipe 35 Heat exchanger 36 CH temperature 43 CH flow 44 Hot water flow 45 Gas inlet 46 Cold water inlet...

Page 16: ...r 3 seconds In display is seen push the button for a long time until 2 nd service level is reached The display will show 8 A Push either or buttons until 9 A is demonstrated in display Push once the b...

Page 17: ...hannel CH circuit 2 one channel DHW circuit 0 2 0 6 A Show last fault 00 FF 6 b Display room thermostat voltage input V only for 1 2 4 connections 0 24 Display measured value 3 4 Service Functions The...

Page 18: ...programmes inputs 00 off 11 on 01 CH off DHW on 10 CH on DHW off Display actual flow rate turbine of min 00 01 10 11 7 A 7 C The starting flow rate of the DHW Table 1 First service level functions Dr...

Page 19: ...Level Service Mode 3 4 2 Selectry 2 nd Level service Functions To change or examine a service function Push the button approximately 5 seconds display ishows Release the button when it lights The disp...

Page 20: ...tch 300 Code plug 302 Earth connection 310 Temperature control for hot water 312 Fuse T 1 6 A 313 Fuse T 0 5 A 315 Terminal block for programmer EMS bus and outside tem perature sensor 319 Terminal bl...

Page 21: ...rol for CH flow 151 Fuse T 2 5 A AC 230 V 153 Transformer 161 Link 300 Code plug 302 Earth connection 310 Temperature control for hot water 312 Fuse T 1 6 A 313 Fuse T 0 5 A 315 Terminal block for pro...

Page 22: ...or connection ZSC 310 Temperature control for hot water 312 Fuse T 1 6 A 313 Fuse T 0 5 A 315 Terminal block for programmer EMS bus and outside tem perature sensor 319 Terminal block for cylinder ther...

Page 23: ...Gas valve 68 Control solenoid 84 Motor 3 way diverter valve 135 On Off switch 136 Temperature control for CH flow 151 Fuse T 2 5 A AC 230 V 153 Transformer 161 Link 226 Modulating Fan 228 Differentia...

Page 24: ...W cylinder NTC sens or connection ZSC 310 Temperature control for hot water 312 Fuse T 1 6 A 313 Fuse T 0 5 A 315 Terminal block for programmer EMS bus and outside tem perature sensor 319 Terminal blo...

Page 25: ...r RAS 2 5 20 pole connector RAS 2 5 20 pole connector RAS 2 5 20 pole connector RAS 2 5 20 pole connector RAS 2 5 20 pole connector Cable colour green app 4 5 A 36 CH flow Temperature Sensor NTC Gas s...

Page 26: ......

Page 27: ...k 120 C 3 6 k A F 0 5 k Can be Can be Measured at Measured at NTC too NTC too 6 3 CH flow temperature sensor NTC White sock Connector 1 3 Cable colour yellow 20 C 12 k 60 C 2 5 k A b 0 5 k 18 1 Speed...

Page 28: ...turbine White sock Connector 9 10 11 Cable colour red yellow black 9 6 Hz 1 5 l min 68 7 Hz 10 l min 6 d 2 Hz 6 Hz Pos Definition Measurement Point Value Expected Heatronic Parameter Tolerance Explana...

Page 29: ...ppliance remains locked until error is removed Category 3 appliance goes on limited working Category4 appliance remains locked until reset button is pressed Error Air pressure switch opens during oper...

Page 30: ...iring diagrams Code plug not detected DHW NTC is not correctly installed After switching off gas flame detected Internal error Reset button pressed accidentally too long 30 secs Insert code plug corre...

Page 31: ...ed on HT3 Measure CO and check if it is in limits Check and correct flue gas pipes installation Measure draft must be 0 015 mbar Chek and correct wind protection installation If A4 still flashing 3 Ch...

Page 32: ...will be displayed on Ht3 Measure CO and check if it is in limits Check and correct flue gas pipes installation Measure draft must be 0 015 mbar Check and correct wind protection installation Appliance...

Page 33: ...Fasten the connection cable Switch on the appliance If A2 still flashing If A2 still flashing If A2 still flashing Check cable connections especially on RAS 5 20 way connector If needed replace cable...

Page 34: ...r Yes Pull out connections of flue gas NTC Measure the resistance Is the range in between 0 30 k Switch off the appliance Cut mains supply Change the electronic card Connect to mains supply Switch on...

Page 35: ...ill flashing 5 If d4 still flashing 5 If d4 still flashing 6 4 Pull out connections of CH NTC Measure the resistance ans see if it is within specified limits Check if water is circulated Electronic ca...

Page 36: ...there is condensation on in APS hose connection points Is it 230 V Yes No 5 5 Check the mains supply voltage No No 6 9 Yes Yes If C1 still flashing 8 If C1 still flashing 9 Turn off the appliance Cle...

Page 37: ...ol Step Order Measure Cheek if fan is operating correctly Check if the 20 poled connection cable damaged Check 7 8 pin for any intermittent contact Change the cable harness Switch on the appliance Swi...

Page 38: ...c card Connect to mains supply Switch on the appliance 6 720 660 238 2008 07 38 38 Troubleshooting blocked or check if there is condensation Check if APS hoses are damaged or in hoses If C4 still flas...

Page 39: ...ck flue pipe for any blockage or wrong installation Check if APS hoses are damaged or blocked or check if there is condensation in hoses Turn off the appliance Clean the flue gas pipe or correct the i...

Page 40: ...fan cables for damages Check if 20 poled connection cable damaged Check 7 8 pin for any intermittent contact Turn off the appliance Change fan cable Switch on the appliance Change the cable harness S...

Page 41: ...r Make sure all air removed from the system Turn pump propeller manually by help of a screw driver If problem continues Turn off the appliance Cut mains supply and empty water Change pump Fill the sys...

Page 42: ...E9IS FLASHING Over hest thermostat triggered Control Step Order Measure Switch off the appliance Cut mains supply Change the electronic card Connect to mains supplu Switch on the appliance 42 Trouble...

Page 43: ...es If A6 still flashing No 3 Electronic card is out of order Turn off the appliance Pull out the cables Measure the electrical resistance of the NTC sensor Turn off the appliance If NTC is changed Pul...

Page 44: ...der Turn of the appliance Pull cables out Measure the electrical resistance of the NTC sensor Turn of the appliance If NTC changed disassemble the NTC cable from NTC measure the sensor resistance asse...

Page 45: ...Fix cable connections make Sure all modules and controllers have 15 VDC Push the reset button Change the room controller and push reset button Change the modules and push the reset button Electronic c...

Page 46: ...gas inlet measurement point screw on the gas value Remove the air from gass line Tighten gas value inlet meassurement point screw Switch on the appliance and push reset button Change thermolshutdown v...

Page 47: ...ns supply Connect cables Turn on the appliance Make sure there is no gas leakage leaking Switch on appliance and push reset button If EA still flashing Go to Is the continuous firing without gas OK Ch...

Page 48: ...trodes Turn on the appliance Push reset button If EA still flashing Check if main cable harness is damaged or not Turn off the appliance Cut the mains supply of the appliance Change the cable harness...

Page 49: ...le harnedd Switch on the mains supply voltage Turn on the appliance Push the reset button Cut the mains supply voltage of the appliance Close the gas inlet valve Change the gas valve Open the gas inle...

Page 50: ...position No Yes 2 Electronic card is out of order Turn off the appliance Insert link in St8 Switch on the appliance Switch off the appliance Cut mains supply Change the electronic card Connect to main...

Page 51: ...on 8 b If b1 still flashing If b1 still flashing Yes Yes No No 3 Electronic card is out of order Install code plug correctly Restart the appliance Switch off the appliance Cut mains supply Change the...

Page 52: ...Pull out the 20 poled RAS5 connector on control unit Measure DHW NTC resistance Is there deviation of resistance values between two messurements Electronic card is out of order Change NTC Restart app...

Page 53: ...s armature safety valves 1 and 2 R 160 40 Connect cables Turn on the appliance Push reset button Close the gas inlet valve If FA still flashing Cut the mains supply of the appliance Change the gas val...

Page 54: ...ronic card is out of order Enter the 8 C and 8 d Record displayed values to the service report Pull the reset button and restart the appliance again Correct the cable connection Reset appliance If EO...

Page 55: ...plate heat exchanger PHE blocked or not Electronic card is out of order Check IPMx module NTC Check cable connections to gas valve Change flow NTC on IPMx module Connect cables to gas valve Yes Yes N...

Page 56: ...1 6 19 2 7 2 18 9 37 2 1 7 20 4 8 0 21 1 39 4 1 8 21 6 8 8 23 4 41 5 1 8 22 9 9 7 25 9 43 9 2 0 24 10 7 28 5 46 0 2 0 Burner Pressure Gas flow mbar lt min kg h Gas type G20_13mbar G30_29mbar G20_13mb...

Page 57: ...9 24 0 10 6 28 5 45 7 2 0 mbar Burner Pressure Gas flow lt min kg h lt min Gas type G20_20mbar G30_29mbar G25 1_25mbar G20_20mbar G30_29mbar G25 1_25mbar Power kW Country code 7 3 1 2 3 0 1 0 14 5 0 7...

Page 58: ...25 9 44 4 2 0 24 9 6 28 5 46 5 2 0 Burner Pressure Gas flow mbar lt min kg h kg h Gas type G20_20mbar G30_29mbar G31_37mbar G20_20mbar G30_29mbar G31_37mbar Power kW Country code 7 3 1 3 2 7 4 0 14 5...

Page 59: ...2 6 9 34 9 1 6 41 0 19 2 8 0 18 3 7 8 37 1 1 7 43 6 20 4 9 0 20 7 8 8 39 4 1 8 46 5 21 6 9 9 23 1 9 8 41 5 1 8 48 9 22 8 11 0 25 9 11 0 43 9 1 9 51 6 24 12 1 28 5 12 1 46 0 2 0 54 3 Gas flow mbar Bur...

Page 60: ...4 25 0 42 5 1 8 24 12 6 27 7 44 7 1 9 Burner Pressure Gas flow mbar lt min kg h kg h Gas type G20_20mbar G30_29mbar G31_37mbar G20_20mbar G30_29mbar G31_37mbar Power kW Country code 8 6 0 8 2 5 3 3 1...

Page 61: ...1 45 3 2 0 25 7 0 22 9 48 1 2 2 26 7 8 3 26 3 51 1 2 3 28 1 9 2 29 1 53 8 2 4 Burner Pressure Gas flow mbar lt min kg h Gas type G25_25mbar G30_29mbar G25_25mbar G30_29mbar Power kW Country code 8 6 0...

Page 62: ...9 23 9 11 4 1 6 4 7 1 7 22 4 1 0 25 7 13 1 2 2 5 9 2 3 25 6 1 2 29 4 14 6 2 8 7 4 2 8 28 5 1 3 33 1 16 3 6 9 0 3 6 31 2 1 4 36 2 17 5 4 6 10 8 4 6 34 0 1 5 39 5 18 8 5 5 12 6 5 5 36 4 1 7 42 4 20 3 6...

Page 63: ...9 1 5 3 2 19 0 0 8 10 5 1 7 3 6 20 1 0 9 11 4 2 0 4 2 21 8 0 9 13 1 2 7 5 6 25 0 1 1 14 6 3 4 7 0 27 7 1 2 16 4 1 8 4 30 3 1 3 17 5 5 0 10 1 33 0 1 4 18 8 5 9 11 7 35 4 1 6 20 3 7 0 13 7 38 1 1 7 22...

Page 64: ...1 8 12 8 0 6 15 4 7 5 2 6 5 5 2 4 14 7 0 7 17 7 8 5 3 3 7 0 3 1 16 6 0 7 20 0 9 5 4 1 8 7 3 9 18 6 0 8 22 3 10 5 5 0 10 5 4 7 20 5 0 9 24 6 11 5 6 0 12 4 5 7 22 4 1 0 26 8 12 5 7 1 14 5 6 7 24 3 1 1...

Page 65: ...7 32 7 1 5 1 4 38 3 18 8 5 17 9 22 6 8 7 34 9 1 6 1 5 40 9 19 2 9 6 20 1 25 3 9 8 37 2 1 7 1 6 43 5 20 4 10 7 22 4 28 1 11 0 39 4 1 7 1 7 46 0 22 12 3 25 6 31 9 12 5 42 3 1 9 1 9 49 4 23 2 13 5 28 5...

Page 66: ...2 0 24 Burner Pressure Gas flow mbar m 3 h m 3 h m 3 h kg h Gas type GZ50_20mbar GZ35_13 mbar GZ41 5_20 mbar G30_37mbar GZ50_20 mbar GZ35_13 mbar GZ41 5_20 mbar G30_37 mbar Power kW Country code 6 7 7...

Page 67: ...code 7 3 1 0 2 1 14 0 0 6 9 1 5 3 2 17 3 0 8 10 4 2 0 4 2 19 9 0 9 11 5 2 4 5 1 22 1 1 0 12 7 3 0 6 2 24 4 1 1 13 8 3 5 7 2 26 5 1 2 15 7 4 4 9 2 30 1 1 4 18 2 5 9 12 1 34 9 1 6 21 1 7 8 15 8 40 5 1...

Page 68: ...3 39 3 1 8 1 7 46 4 22 9 4 20 2 25 2 9 6 42 4 1 9 1 8 50 3 23 5 10 7 22 7 28 6 10 8 45 2 2 0 2 0 53 6 25 12 0 25 3 32 2 12 1 48 0 2 1 2 1 57 0 26 1 13 1 27 3 35 0 13 1 50 0 2 2 2 2 59 5 27 1 14 0 29 4...

Page 69: ...sure Gas flow mbar m 3 h m 3 h m 3 h kg h Gas type GZ50_20mbar GZ35_13 mbar GZ41 5_20 mbar G30_37mbar GZ50_20 mbar GZ35_13 mbar GZ41 5_20 mbar G30_37mbar Power kW Country code 8 3 8 4 0 8 1 4 8 6 1 5...

Page 70: ...0492 Burner Pressure Gas flow mbar lt min kg h lt min Gas type G20_20mbar G30_29mbar G25_25mbar G20_20mbar G30_29mbar G25_25mbar Power kW Country code 7 3 2 1 16 2 8 6 2 1 2 6 2 9 16 9 0 8 19 1 9 5 2...

Page 71: ...0 1 1 0 8 9 5 2 6 0 8 2 0 4 6 1 1 1 4 1 4 0 9 10 7 3 4 1 0 2 6 5 8 1 3 1 6 1 5 1 0 11 9 4 4 1 3 3 3 7 2 1 4 1 8 1 7 1 1 12 6 5 0 1 8 3 8 8 0 1 5 1 9 1 8 1 1 14 4 6 7 2 1 5 2 10 5 1 7 2 1 2 0 1 3 15 6...

Page 72: ...0 9 0 8 10 7 2 0 1 7 6 4 8 1 21 2 21 1 1 0 0 9 11 9 2 5 2 2 7 8 9 8 23 5 23 4 1 1 1 0 12 6 2 8 2 4 8 7 11 0 24 8 24 8 1 1 1 1 14 4 3 8 3 3 11 2 14 0 28 2 28 2 1 3 1 2 15 6 4 6 3 9 13 0 16 3 30 5 30 4...

Page 73: ...0 8 6 19 4 38 1 38 7 1 7 21 6 10 4 9 9 21 8 40 2 41 0 1 8 22 8 12 0 11 4 24 4 42 3 43 3 1 9 24 13 3 12 6 27 0 44 5 45 6 2 0 Burner Pressure Gas flow mbar lt min kg h lt min Gas type G20_20mbar G30_29m...

Page 74: ...9 23 9 11 9 2 8 6 4 6 9 22 7 1 0 26 4 12 6 3 1 7 2 7 6 24 0 1 1 27 9 14 4 4 2 9 5 9 6 27 3 1 2 31 6 15 6 5 0 11 2 11 1 29 4 1 3 34 1 16 8 6 0 13 0 12 5 31 6 1 4 36 5 18 7 0 15 0 14 0 33 7 1 5 38 9 19...

Page 75: ...25 10 3 6 1 10 6 21 0 2 9 4 0 3 5 2 2 27 12 6 7 1 13 0 24 9 3 1 4 3 3 8 2 3 28 1 13 7 14 1 27 0 3 2 3 9 2 4 Burner Pressure mbar Gas flow lt min lt min kg h kg h Gas type G20_20mbar G20_13mbar G30_29m...

Page 76: ...43 9 44 0 2 0 25 9 7 9 6 21 2 46 6 46 6 2 1 27 11 8 11 5 24 9 50 2 50 1 2 3 28 1 12 8 12 5 27 0 52 2 52 1 2 4 Burner Pressure Gas flow mbar lt min kg h lt min Gas type G20_20mbar G30_29mbar G25_25mba...

Page 77: ...4 1 5 4 2 2 3 21 6 1 0 25 6 13 1 2 0 5 6 3 0 24 8 1 1 29 2 14 6 2 6 7 0 3 8 27 6 1 2 32 4 16 3 3 8 5 4 5 30 1 1 3 35 3 17 5 4 0 10 2 5 4 32 9 1 5 38 4 18 8 4 8 11 8 6 2 35 3 1 6 41 0 20 3 5 8 13 8 7...

Page 78: ...1 3 0 2 5 1 6 18 8 2 9 1 1 1 8 9 6 2 2 3 2 2 7 1 7 20 3 3 5 1 4 2 2 11 3 2 4 3 4 2 9 1 8 22 4 2 1 6 2 7 13 4 2 6 3 7 3 1 1 9 23 5 5 0 1 9 3 2 15 3 2 8 3 9 3 3 2 1 25 5 8 2 2 3 7 17 4 2 9 4 1 3 5 2 2...

Page 79: ...56 1 2 5 2 4 31 5 10 3 24 8 32 7 60 5 2 7 2 7 32 3 10 9 26 3 34 5 61 9 2 8 2 7 33 2 11 8 28 1 63 6 2 9 33 4 11 9 28 4 63 8 2 9 33 9 12 4 64 7 34 9 13 1 66 6 mbar Burner Pressure Gas flow m 3 h kg h kg...

Page 80: ...5 7 0 6 6 17 2 17 2 51 4 51 3 2 3 2 3 29 8 0 7 6 19 3 19 3 54 1 53 7 2 4 2 4 31 5 9 9 9 3 22 9 22 9 58 6 57 8 2 6 2 6 32 5 11 1 10 0 24 5 24 2 60 3 59 0 2 7 2 7 33 5 10 9 26 1 60 9 2 8 34 2 11 5 27 2...

Page 81: ...5 6 3 8 30 2 1 3 34 4 17 5 2 2 6 7 4 6 33 0 1 5 37 4 18 8 2 6 7 8 5 3 35 4 1 6 40 0 20 3 3 1 9 1 6 3 38 1 1 7 43 0 22 3 8 10 8 7 5 41 2 1 8 46 4 23 5 4 5 12 4 8 7 43 9 2 0 49 3 25 5 2 14 1 9 9 46 6 2...

Page 82: ...19 2 7 8 17 8 35 8 1 6 20 4 8 9 20 0 37 9 1 7 21 6 10 1 22 4 40 0 1 8 22 8 11 4 24 9 42 1 1 9 24 12 6 27 6 44 3 2 0 Burner Pressure Gas flow mbar lt min kg h Gas type G20_20mbar G30_29mbar G20_20mbar...

Page 83: ...2 1 6 40 2 20 3 6 0 15 0 8 1 39 1 1 7 43 1 22 7 1 17 4 9 4 42 3 1 8 46 4 23 5 8 2 19 7 10 7 45 1 2 0 49 2 25 9 4 22 0 12 0 47 9 2 1 52 0 27 11 1 25 3 13 8 51 7 2 3 55 6 28 1 12 0 27 4 15 0 53 8 2 4 57...

Page 84: ...25mbar G20_20mbar G20_20mbar G30_29mbar G25_25mbar Power kW Country code S0200 S6300 S0200 S0200 S6300 S0200 10 6 1 3 1 3 2 7 1 3 20 2 20 2 0 9 20 6 12 1 1 7 1 7 3 5 1 7 23 0 23 0 1 0 23 5 13 1 2 0 2...

Page 85: ...5 and NGVM NGLM 4 types Temperature C Resistance 0 33242 10 19947 20 12394 30 7947 40 5242 50 3548 60 2459 70 1740 80 1256 90 923 Tab 54 0 35975 10 22763 20 14772 30 9785 40 6652 50 4607 60 3245 70 2...

Page 86: ...42 50 3548 60 2459 70 1740 80 1256 90 923 Tab 56 0 28250 0 330 20 12161 25 110 40 5736 60 24 08 60 2949 80 11 77 80 1634 100 6 12 100 961 4 120 3 37 120 595 2 140 1 95 140 386 2 160 1 17 160 260 2 165...

Page 87: ...es Key lock active Drying function If the floor drying function is activated on outside temperature controlled programmer refer to programmer instructions Pump anti seize function active Two buttons a...

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