Flexit EcoNordic Manuel d'utilisation

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

Q. Castel

creation

8/03/2018

Q.Castel /J. Desno

Overall revision

08/06/2018

J Desno

>§8 & §9 PCB syst & INV cable colors

rewieved

>§1 list of spare parts : reference reviewed

>§10 Thermistors : legend added

22/10/2018

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

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 5

1. SPARE PARTS

INFORMATION:

For a complete list of spare parts please visit the Flexit Web site: www.flexit.com

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.

HEAT PUMP VIEW FROM BELOW

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.

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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