Flexit EcoNordic Manuale operativo
117181EN-04
2019-06
ECONORDIC
Heat pump - Maintenance Guide
IMPORTANT
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, in
order to ensure the equipment’s optimum and safe operation.
Revision History
Date
Rev
Designed
Revision Content
16/08/2018
0
Q. Castel
creation
8/03/2018
1
Q.Castel /J. Desno
Overall revision
08/06/2018
2
J Desno
>§8 & §9 PCB syst & INV cable colors
rewieved
>§1 list of spare parts : reference reviewed
>§10 Thermistors : 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 above (pages distribution
only)
22/06/2019
4
J.Desno
>§15 FTA modification, Electric Input check
table, LED information
>§5.3.4 Duct fitting screwed with top panel
>§1 list of spare parts : reference of PCB
modified
>§6 FAN replacement : pictures reviewed
TABLE OF CONTENT
1. LIST OF SPARE PARTS...................................................................................................................5
2. HOW TO CHANGE THE COMPLETE HEAT PUMP UNIT ?.................................................................6
2.1 DISCONNECT THE ELECTRIC CONNECTIONS.................................................................................. 6
2.2 DISCONNECT THE CONDENSATE CONNECTION ............................................................................ 7
2.3 DISCONNECT THE WATER CONNECTIONS..................................................................................... 8
2.4 DISCONNECT THE AIR CONNECTIONS ........................................................................................... 8
2.5 REMOVE THE HEAT PUMP UNIT.................................................................................................... 9
3. HOW TO CHANGE THE WATER PUMP?.......................................................................................10
3.1 WATER PUMP DISASSEMBLY....................................................................................................... 10
3.2 WATER PUMP REASSEMBLY........................................................................................................ 12
3.3 HOW TO CHANGE THE WATER PUMP CABLE ? ........................................................................... 15
4. HOW TO 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 REASSEMBLY ................................................................................................. 19
5.2 RIGHT PANEL ............................................................................................................................... 23
5.2.1 RIGHT PANEL DISASSEMBLY ................................................................................................. 23
5.2.2 RIGHT PANEL REASSEMBLY .................................................................................................. 24
5.3 TOP PANEL................................................................................................................................... 25
5.3.1 TOP PANEL DISASSEMBLY .................................................................................................... 25
5.3.2 TOP PANEL REASSEMBLY...................................................................................................... 26
5.3.3 ASSEMBLY OF THE GASKETS OF TOP PANEL ........................................................................ 27
5.3.4 ASSEMBLY OF THE DUCTS OF TOP PANEL ............................................................................ 27
5.4 REAR PANEL................................................................................................................................. 28
5.4.1 REAR PANEL DISASSEMBLY................................................................................................... 28
5.4.2 REAR PANEL REASSEMBLY.................................................................................................... 29
5.5 LEFT PANEL .................................................................................................................................. 30
5.5.1 LEFT PANEL DISASSEMBLY.................................................................................................... 30
5.5.2 LEFT PANEL REASSEMBLY..................................................................................................... 31
6. HOW TO CHANGE THE FAN ? .....................................................................................................31
6.1 DISCONNECT THE FAN CABLES.................................................................................................... 32
6.2 REMOVE THE AERAULIC CIRCUIT 0030 ....................................................................................... 33
6.3 HOW TO REMOVE THE FAN?....................................................................................................... 33
6.4 FAN REASSEMBLY ........................................................................................................................ 35
6.5 AERAULIC CIRCUIT 0030 REASSEMBLY........................................................................................ 37
6.6 CONNECT THE ELECTRIC FAN CABLES ......................................................................................... 38
7. HOW TO CHANGE FAN COOLING?..............................................................................................39
7.1 FAN COOLING KIT SUBASSEMBLY................................................................................................ 39
7.2 FAN COOLING DISASSEMBLY....................................................................................................... 40
7.3 FAN COOLING REASSEMBLY ........................................................................................................ 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. HOW TO CHANGE THE HEAT PUMP THERMISTORS ?................................................................52
10.1 THERMISTORS CURVES.............................................................................................................. 56
11. HOW TO CHECK THE EXPANSION VALVE COIL POSITION?.........................................................58
12. HOW TO CHECK THE PRESSURE SWITCH CONNECTION?........................................................... 59
13. HOW TO CLEAN THE GAS COOLER? ..........................................................................................60
14. HOW TO CHANGE THE PACKAGING ? .......................................................................................61
15. ANNEXES .................................................................................................................................63
15.1 FAILURE TREE ANALYSIS ............................................................ Feil! Bokmerke er ikke definert.
15.2. ELECTRONIC CHECK TABLE ....................................................................................................... 63
Maintenance 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.
Maintenance Guide – Econordic heat pump 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 hereafter.
2
HEAT PUMP VIEW FROM BELOW
1
Maintenance Guide – Econordic heat pump 8
2.3 DISCONNECT THE 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 LOCATION
STEP 1:
Disconnect the air ducts.
Air duct
Heat pump
Maintenance Guide – Econordic heat pump 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 this operation.
Hooks
Use protection gloves !
Maintenance Guide – Econordic heat pump 10
3. WATER PUMP - REPLACEMENT
3.1 WATER PUMP DISASSEMBLY
WATER PUMP OVERVIEW
1. Inlet water pipe
2. Quick fastener
3. Water pump body
4. Quick fastener
5. Outlet water pipe
6. Electrical connector
7. Fixation screws location
WATER 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 connection to the heat pump before you replace
the water pump.
1
2
3
4
5
6
7
WATER PUMP
IMPORTANT:
When you remove the water pump or when you have to disconnect the
cable from the water pump : check the connector systematically before
reusing and reconnecting the cable.
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