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M

aintenance Guide – Econordic heat pump

41

7.3 REASSEMBLY OF THE COOLING FAN

STEP 5:

Remove the complete cooling fan
assembly.

STEP 1:

Position the cooling fan assembly in
the right position, shown on the 3D
view hereafter.

IMPORTANT:

The left fixation part of
the fan bracket must
be placed between
the water pump
cable (1) and the fan
cable (2) as shown in
the picture hereafter.

2

1

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Summary of Contents for EcoNordic

Page 1: ...RTANT Please keep this document Thank you for choosing a FLEXIT product This document is intended for FLEXIT s technicians It provides essential information to complete the required installation work...

Page 2: ...stors legend added 22 10 2018 3 J Desno Management of the water pump reviewed 3 1 Caution message reviewed 3 2 Connector checking added as Step 0 Table of content reviewed according to modifications a...

Page 3: ...CHANGE THE FLEXIT S DOOR 16 4 1 REMOVE THE FLEXIT S DOOR 16 4 2 REASSEMBLE THE FLEXIT S DOOR 16 5 HOW TO CHANGE THE PANELS 17 5 1 FRONT PANEL 17 5 1 1 FRONT PANEL DISASSEMBLY 17 5 1 2 FRONT PANEL REAS...

Page 4: ...EASSEMBLY 41 8 HOW TO CHANGE SYSTEM PCB 43 8 1 SYSTEM PCB DISASSEMBLY 43 8 2 SYSTEM PCB REASSEMBLY 45 9 HOW TO CHANGE INVERTER PCB 48 9 1 INVERTER PCB DISASSEMBLY 48 9 2 INVERTER PCB REASSEMBLY 49 10...

Page 5: ...Maintenance Guide Econordic heat pump 5 1 SPARE PARTS INFORMATION For a complete list of spare parts please visit the Flexit Web site www flexit com...

Page 6: ...ter HEAT PUMP ELECTRIC WIRE CONNECTION STEP 2 Disconnect the water pump cable 3 1 STEP 3 Disconnect the Modbus cable from the electric terminal of the Econordic product Modbus grey IMPORTANT Disconnec...

Page 7: ...p 7 2 2 DISCONNECT THE CONDENSATION HOSE CONDENSATION PIPE LOCATION STEP 1 To disconnect the condensation hose pull down the drain hose 1 then turn to fitting to the left 2 as shown on the picture her...

Page 8: ...HE WATER CONNECTIONS 2 4 DISCONNECT THE AIR CONNECTIONS STEP 1 To disconnect the heat pump from the water supply turn the two flexible hoses the left as shown in the picture hereafter WATER PIPES LOCA...

Page 9: ...2 5 REMOVE THE HEAT PUMP UNIT OVERVIEW OF THE SYSTEM RAILS OF THE G3 PRODUCT HEAT PUMP VIEW FROM BELOW STEP 1 Pull the heat pump unit toward you by sliding it IMPORTANT Two persons are required for th...

Page 10: ...PUMP LOCATION IN THE ECONORDIC PRODUCT Open the door at the bottom right of the product with the two handles in order to access to the domestic hot water tank CAUTION Disconnect the electrical connec...

Page 11: ...alve 2 Drain the water circuit 3 Remove the quick fastener 16 25 2 4 Remove the quick fastener 16 25 4 STEP 2 1 Remove the inlet water pipe 1 2 Remove the outlet water pipe 5 STEP 3 1 Remove the two f...

Page 12: ...pump or when you have to disconnect the cable from the water pump check systematically the connector before reusing and reconnecting the cable Use the following procedure STEP 0 Connector checking If...

Page 13: ...ange water pump cable If case of absence keep the water pump cable fitted to the water pump 2 Check absence of verdigris kind of corrosion or dark traces Caution the cable connector is located behind...

Page 14: ...ocation 2 Fasten the two fixation screws to the fixing bracket STEP 3 1 Reinsert the inlet water pipe in the suction side of the water pump 2 Reinsert the outlet water pipe in the discharge side of th...

Page 15: ...unit STEP 2 Remove the door of heat pump unit 4 1 STEP 3 Disconnect the water pump cable from the water pump 3 1 STEP 4 Disassemble the front panel 5 1 STEP 5 Disassemble the cooling fan 7 2 STEP 6 Di...

Page 16: ...THE HEAT PUMP DOOR Unscrew the three screws located on the top cover as shown on the 3D view below Then remove the door HEAT PUMP VIEW FROM THE TOP 1 Place the door on its location as show on the pic...

Page 17: ...ket 6 PCB protector 7 Rear panel 8 Top panel 9 Right panel STEP 1 Remove the right panel by unscrewing the two screws M4x10 The screw on the front side is located in the bottom right corner The screw...

Page 18: ...ater pump cable harness 2 Remove the two plate brackets Torx T20 tip STEP 3 Remove the PCB protector by pulling it towards you STEP 4 Disconnect the two earth cables by hand or with a flat plier Use a...

Page 19: ...in the front panel Torx T20 tip To remove the front panel pull the upper part first and lift the panel afterwards STEP 1 Pass the cables through the PCB protection location Continue with unfastening...

Page 20: ...20 tip Make sure there is a spacer in each hole STEP 3 Connect the two earth cables by hand or with a flat plier IMPORTANT Make sure that no cables are jammed between the front panel and the PCB casin...

Page 21: ...rounding cables are inserted into their cable path STEP 5 1 Fasten the two plate brackets Torx T20 tip 2 Connect the power supply cable Modbus cable water pump cable harness Modbus grey Water pump cab...

Page 22: ...t metal casing by the upper side push down on top of the cover and position the lower parts by putting pressure towards the heat pump unit STEP 7 1 Fasten the screw on the front side of the metal casi...

Page 23: ...NEL DISASSEMBLY STEP 3 Remove the right panel by sliding it toward the front of the unit To facilitate the handling push up the top panel slightly pull the left corner towards you and then slide it ge...

Page 24: ...L REASSEMBLY 1 Push alternately the upper and lower corner of the panel into the unit 2 Place one hand on the front panel and the other on the rear panel and push the panel into the correct position S...

Page 25: ...be changed in case of damages during handling at the factory At this step there are no metal casing assembled on the heat pump STEP 2 Start to remove the top panel by the right side Push the two corne...

Page 26: ...the groove of the right panel STEP 2 Then finalize the right side Push down the right side of the top panel on the left panel as shown in the picture hereafter IMPORTANT Ensure there is no space betwe...

Page 27: ...ay risk to damage the exhaust air hole Don t push strongly on this area STEP 1 Assemble the gaskets as shown on the 3D view hereafter 1 Aeraulic gasket 0000 605 mm 2 Aeraulic gasket 0010 840 5 mm 3 Ae...

Page 28: ...bled on the heat pump STEP 1 Remove the front panel 5 1 1 STEP 2 Remove the top panel 5 3 1 STEP 3 Pull the rear panel slightly by the two upper corners Avoid too angle the rear panel to much since th...

Page 29: ...t and left panels then insert the rear panel in the slot of the base plate Do not hesitate to force on the upper side of rear panel to ensure no gap between the base plate and the rear panel STEP 2 Pr...

Page 30: ...ining between the parts Comment Rear panel will only be changed in case of damages during handling at the factory At this step there are no metal casing assembled on the heat pump STEP 1 Remove the fr...

Page 31: ...uit 0030 7 Fan cable 1 2 3 5 4 6 7 In order to change the fan easily it is important to provide a minimum service space of 50 cm on the right side of the product STEP 1 Insert the left panel in the sl...

Page 32: ...ressing the two clamps shown hereafter STEP 1 Remove the door 4 1 STEP 2 Remove the front panel 5 1 1 STEP 3 Remove the right panel 5 2 1 RIGHT SIDE VIEW Press the 2 clamps to disconnect the fan cable...

Page 33: ...e the fan housing To remove the fan housing first pull on the left side as shown on the picture 1 below Secondly pull the lower part toward you 2 Third pull down the fan housing 3 IMPORTANT Check that...

Page 34: ...2 To remove the four screws M4 x 16 use a Torx T20 tip The fan bracket can be sharp It s recommended to use protective gloves IMPORTANT Hold the fan during removal of the screws 2 Remove the spacer by...

Page 35: ...fan bracket IMPORTANT Find the correct angle to push the connector through the bracket Do not force STEP 4 Remove the fan from its location and slide it down STEP 1 Pass the two fan cables slightly t...

Page 36: ...in the location shown in the 3D view hereafter STEP 3 Clip the spacer on the fan bracket by introducing the two clamps in the corresponding holes in the fan bracket as shown in the view below IMPORTA...

Page 37: ...tip The fan bracket can be sharp It s recommended to use protective gloves STEP 1 Reinsert the fan housing in its location shown in the 3D view hereafter To reinsert the fan housing insert the upper s...

Page 38: ...ric cables to the fan correctly in the housing in order to close the casing properly STEP 1 Connect the fan cable by pressing the clamps STEP 2 Reassemble the right panel 5 2 2 STEP 3 Reassemble the f...

Page 39: ...2 3 4 5 STEP 1 Place the plastic grid on the front face EBM logo on the motor of the cooling fan STEP 2 Position the cooling fan on the fan bracket STEP 3 1 Insert the two rivets in their location as...

Page 40: ...etized screwdriver to avoid losing screws inside the PCB casing Start by removing the two screws on the top STEP 4 Remove the three screws STEP 1 Remove the FLEXIT s door 4 1 CAUTION Disconnect the el...

Page 41: ...ve the complete cooling fan assembly STEP 1 Position the cooling fan assembly in the right position shown on the 3D view hereafter IMPORTANT The left fixation part of the fan bracket must be placed be...

Page 42: ...s STEP 3 Connect the cooling fan cable harness Use a magnetized screwdriver to avoid losing screws inside the PCB casing Start by fastening the screw in the bottom STEP 5 Reassemble the FLEXIT s door...

Page 43: ...E 0000 RY001 F2815 40010 FAN COOLING 0010 CN103 F0710 40000 POWER SUPPLY CABLE 0000 F0710 40010 POWER SUPPLYCABLE 0010 F0702 40020 WIRE 0020 CN004 F0710 40010 COMMUNICATION CABLE 0010 CN301 F0711 4002...

Page 44: ...WER SUPPLY CABLE 0000 F0710 40010 POWER SUPPLYCABLE 0010 F0710 40010 COMMUNICATION CABLE F0714 40000 PRESSURE SWITCH CABLE F3106 40010 EXPANSION VALVE COIL F4503 40000 HEATER CORD 0000 SYSTEM PCB ASSE...

Page 45: ...left corner IMPORTANT Hold on to the System PCB when you remove the last screw otherwise the PCB may fall down STEP 6 Remove the SYSTEM PCB To remove the SYSTEM PCB pull slightly on the right side fir...

Page 46: ...from N 1 to N 12 F0717 40000 COMMUNICATION CABLE F0716 40010 FAN CABLE F0715 40000 PUMP CABLE 91101 45400T HEAT PUMP THERMISTOR F0702 40000 F2815 40010 F0710 40000 POWER SUPPLY CABLE 0000 F0710 40010...

Page 47: ...ANT When you connect the communication cable n 8 make sure that the cable is placed in the support guide as shown in the picture hereafter STEP 4 Reassemble the fan cooling 7 3 STEP 6 Reassemble the d...

Page 48: ...0020 F0710 40010 COMMUNICATION CABLE F0711 40020 COMPRESSOR CABLE F0702 40010 F0703 10000 TERMINAL BLOCK ASSY 0000 INV PCB ASSEMBLY 40105 11510T 1 2 3 4 5 6 7 CAUTION Disconnect the electric supply to...

Page 49: ...tom left corner IMPORTANT Hold on to the PCB when you remove the last screw otherwise the PCB may fall down STEP 5 Remove the INVERTER PCB To remove the PCB pull slightly on the right side first STEP...

Page 50: ...in Centering pin Centering pin STEP 3 Connect all cables from N 1 to N 7 F4501 40000 REACTOR F0702 40000 F0710 40000 POWER SUPPLY CABLE 0000 F0710 40010 POWER SUPPLYCABLE 0010 F0702 40020 F0710 40010...

Page 51: ...Guide Econordic heat pump 51 The reactor cables are not polarized so it doesn t matter which cable are placed on which connector STEP 4 Reassemble the PCB protection 5 1 1 step 4 STEP 5 Reassemble th...

Page 52: ...EMPERATURE SENSOR REPLACEMENT TEMPERATURE SENSOR OVERVIEW 1 Air inlet sensor 2 CO Discharge sensor the shorter 3 Defrost sensor the longer 4 Water outlet sensor red mark 5 Water inlet sensor white mar...

Page 53: ...STEP 1 Remove the door 4 1 STEP 3 Remove the right metal casing by removing the two screws located at the bottom of the heat pump as shown on the picture below To replace the temperature sensors in th...

Page 54: ...shown on the picture hereafter STEP 5 Remove the front panel 5 1 1 STEP 6 Remove the top panel 5 3 1 STEP 7 Remove the left panel 5 5 1 STEP 8 Remove the five sensors from their location see 10 Tempe...

Page 55: ...intenance Guide Econordic heat pump 55 STEP 9 Disconnect the connector from the SYSTEM PCB SYSTEM PCB ASSEMBLY 40105 11521T STEP 10 Remove the sensor cable harnesses from the sensor holder Sensor hold...

Page 56: ...TURE SENSOR CURVES 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 25 20 15 10 5 0 5 10 15 20 25 30 35 40 45 50 R k Temperatures C Air sensor 0 1 2 3 4 5 6 7 8 9 10 11 12 60 65 70 75 80 85 90 95 100 105 11...

Page 57: ...pump 57 0 2 4 6 8 10 12 14 16 18 20 22 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 R k Temperatures C Gas Cooler sensor 0 2 4 6 8 10 12 14 16 18 20 22 25 20 15 10 5 0 5 10 15 20 25 30 35 40 45 R...

Page 58: ...p 58 11 EXPANSION VALVE COIL CHECK POSITION STEP 1 Remove the door 4 1 STEP 2 Remove the front panel 5 1 1 STEP 3 Check the position of the expansion valve coil as shown in the pictures below The clip...

Page 59: ...ESSURE SWITCH CHECK CONNECTION STEP 1 Remove the door 4 1 STEP 2 Remove the front panel 5 1 1 STEP 3 Check that the connectors are properly attached to the pressure switch as shown in the pictures bel...

Page 60: ...d check the integrity of the connections and or change the defective parts When the tightness is secured switch off the pump Carefully add the required amount of acid for descaling refer to the recomm...

Page 61: ...s Plastic bag STEP 3 Remove the top cover STEP 2 Remove the two cardboard angles and the plastic bag CAUTION Do not damage the package material during cutting Remove vertically the top cover by using...

Page 62: ...wedges 40 located on the heat pump top panel STEP 6 Remove the two internal wedges 30 located on the left and right side of heat pump Internal wedges 30 Internal wedges 40 Remove the top cover vertic...

Page 63: ...L 850 H R 50 Expansion valve trouble code 6 code 7 code 8 code 9 code 10 System PCB Expansion valve F3106 40010 Input Thermistor CN111 DC12V 5 Evaporator Fan trouble code 12 Power supply Fan motor F07...

Page 64: ...Maintenance Guide Econordic heat pump 64 Modbus Communications error NA System PCB G3 product F0717 40000 CN110 Bus RS485 DC12V 5 Fan Power supply cable at terminal blocks PCB INV Power supply...

Page 65: ...Power off OFF OFF Initialisation phase after power on 30s OFF ON Standby mode ON OFF Operating mode Blinking OFF Error mode OFF Blinking INVERTER PCB LED Green Power off OFF Power on ON The green red...

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