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M

aintenance Guide – Econordic heat pump 

6 

2. HEAT PUMP UNIT - REPLACEMENT  

 

 

 

 

 

 

2.1 DISCONNECT THE ELECTRIC CONNECTIONS

 

 

STEP 1 :  

 
Disconnect  the power supply cable. 
Pull the connector outward as shown 
on the picture hereafter. 

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:  

 

Disconnect the electrical connection to the product before replacement and 

turn off the water supply valve. Purge the water inside the heat pump. Disconnect 

the air ducts from the air inlet and air outlet of heat pump. 

Содержание EcoNordic

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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