Installation instructions
intended for the
professional technician
these must be kept safe
for subsequent consultation
7
8
3
" This manual primarily concerns the installation and
connection of the boiler connection.
Please refer to the technical manuals for the heat pump
and the boiler for how to install and congure these
units.
Fujitsu General (Euro) GmbH
Fritz-Vomfelde-Strasse 26/32
40547 Düsseldorf - Germany
Subject to modications without notice.
Non contractual document.
Boiler connection kit
UTW-KBD*D
for heat pump, Split integrated DHW
Document n° 1601-3 ~19/08/2019
FR NL DE EN IT
ES PT PL PT PT
1 Description of the equipment
1.1 Package
• 1 package: Boiler connection kit.
On reception, before you t anything, it is essential
that you check the parts received and search for any
damage caused during transport.
1.2 Scope of application
The connection of an oil or gas boiler to the heat pump
requires the installation of the boiler connection kit.
This corresponds to the preset congurations 3 and 4
on the heat pump’s hydraulic unit’s regulator (line 5700).
gure 1 - Dimensions in mm
gure 2 - Hydraulic pressures and ow rates available
(Hydraulic unit + Boiler connection kit)
598
125 210
1256
47,2
1093
1148
272
55
194
124
69
1279,5
Back view
Heating
ow
Heating
return
Boiler
1.3 Specications
Power absorbed < 25 W
Maximum operating pressure 3 bar
Supply voltage 230V - 50Hz
Boiler connection diameter 26 x 34 mm
Flow/return diameter (male) 26 x 34 mm
0
1
2
3
4
5
6
7
8
mCE
1 mbar=10 mmCE=100 Pa
m/h
3
1
1,5 20,50
1
3
55
77
0
1
2
3
4
5
6
7
8
mCE
1 mbar=10 mmCE=100 Pa
m/h
3
1
1,5 20,50
1
3
55
77
Variable pressure
Constante pressure
Installation instructions "1601 - EN"
Boiler connection kit
- 2 -
175 210
1840
47
244
1189
1141
648
1296
698
103
1850
43
630
599
576
644
272 55
174
119
1321
Back view
Heating
ow
Heating
return
Boiler
1.4 Operating principle
When the heat pump cannot supply the amount of
energy required, the 3-way distribution valve shunts the
circuit through the boiler to provide additional energy.
The heat pump can be prevented from operating and
the boiler forced to operate by means of control contact
EX1 (bypass).
" Please refer to the manual provided with the HP.
gure 3 - Overall hydraulic layout
or
Boiler
HP
Hydraulic
unit
Boiler conguration:
see pages 8 & 9.
Installation instructions "1601 - EN" - 3 -
Boiler connection kit
gure 4 - Boiler connection kit
1.5 Description
Distribution
valve
A
B
AB
gure 5 - Pipes passages
Back view
Installation instructions "1601 - EN"
Boiler connection kit
- 4 -
2 Installation instructions
2.1 Hydraulic connections
The connection must comply with good trade practice
according to local building regulations.
The appliance must be connected to the installation
with union connectors and shut-o valves to facilitate
its removal.
Reminder: Seal everything when tting in accordance
with prevailing trade practice for plumbing work:
- Use suitable seals (bre seals, o-rings).
- Use Teon tape or hemp.
- Use sealing paste (synthetic depending on the case).
• Fitting the boiler connection kit (gure 6)
- Remove the front panel.
• 1 - Take out the expansion vessel.
• 2 - Remove and suppress the exchanger’s ow pipe.
• 3 - Install the boiler connection kit.
" Carefully comply with the direction for tting
the distribution valve.
A : way A open: heat pump + boiler operating.
B : way B open: heat pump operating alone.
• 4 - Make an incision in the insulator and clamp the
ow sensor on the facility’s ow pipe. Apply adhesive
tape on each side of the incision.
Good contact must be maintained between the heating
ow sensor and the pipework. The contact surface
between the piping and the sensor should be free of
rust and paint.
gure 6 - Fitting the boiler connection kit
2
1
3
3
4
A
B
Installation instructions "1601 - EN" - 5 -
Boiler connection kit
- Replace the cable grommet with membrane by the cable
grommet included in the kit (see gure 5, page 4).
2.2 Overall hydraulic layout
• Conguration 3 : Boiler connection and 1 heating circuit.
SE
Ssa
Sae
AE
SR
VE
C
VD
GS
MT
CAR
CAR
SDp
Pg
SaeC
SSe
D
R
OU
PC
SA
SA
Rdyn*
OU
SA*
BT *
M
VDI
KR
TA
A
A
B
AB
M
CAT
Bre
CCI
VDI
D
TA
A
B
AB
CCI
Exemple
groupe chaudière
Exemple
groupe chaudière
Legend :
AE - Hot water electrical backup
AVS - Extension board, 2 circuits
BD - Disconnection bottle
C - Heating circulation pump HP
CAR - Non-return valve
CAT - Anti-gravity feed valve
CCI - Heating system circulation pump built into the boiler
CCM - Mixed-circuit heat pump
D - Shut-o
GS - Safety unit
K2c - 2nd circuit kit
KR - Boiler connection kit
MT - Thermostatic mixer valve
PC - Floor heating system
Pg - Bleeder valve
R - Radiators
SA1 - Room thermostat circuit 1 (option)
SA2 - Room thermostat circuit 2 (option)
Sae - Temperature safety of DHW electrical back-up
SaeC - Temperature safety (heating back-up option)
SDp - Initial sensor PAC
SDpM - Mixed-circuit initial sensor
SE - Outdoor sensor
SP - Heated oor thermal safety fuse
SR - Return sensor
Ssa - DHW sensor
TA - Boiler room thermostat terminals
VD - Distribution valve
VDI - Distribution valve (deviation boiler)
VE - Expansion vessel
VM - Mixer valve
Example
boiler unit
Example
boiler unit
OR
OR
Installation instructions "1601 - EN"
Boiler connection kit
- 6 -
Legend :
AE - Hot water electrical backup
AVS - Extension board, 2 circuits
BD - Disconnection bottle
C - Heating circulation pump HP
CAR - Non-return valve
CAT - Anti-gravity feed valve
CCI - Heating system circulation pump built into the boiler
CCM - Mixed-circuit heat pump
D - Shut-o
GS - Safety unit
K2c - 2nd circuit kit
KR - Boiler connection kit
MT - Thermostatic mixer valve
PC - Floor heating system
Pg - Bleeder valve
R - Radiators
SA1 - Room thermostat circuit 1 (option)
SA2 - Room thermostat circuit 2 (option)
Sae - Temperature safety of DHW electrical back-up
SaeC - Temperature safety (heating back-up option)
SDp - Initial sensor PAC
SDpM - Mixed-circuit initial sensor
SE - Outdoor sensor
SP - Heated oor thermal safety fuse
SR - Return sensor
Ssa - DHW sensor
TA - Boiler room thermostat terminals
VD - Distribution valve
VDI - Distribution valve (deviation boiler)
VE - Expansion vessel
VM - Mixer valve
• Conguration 4 : Boiler connection and 2 heating circuits.
SE
Ssa
Sae
AE
SR
VE
C
VD
GS
MT
CAR
CAR
SDp
Pg
SaeC
SSe
D
R
OU
PC
SA
SA
Rdyn*
OU
SA*
BT *
M
CCM
VM
SDpM
K2c
CAR
AVS
Circuit 1
Circuit 2
Rdyn*
SA*
Rdyn*
SA2 *
R
OU
SA
BT *
CAR
M
VDI
KR
TA
A
A
B
AB
M
CAT
Bre
CCI
VDI
D
TA
A
B
AB
CCI
Exemple
groupe chaudière
Exemple
groupe chaudière
Example
boiler unit
Example
boiler unit
OR
SA2
Installation instructions "1601 - EN" - 7 -
Boiler connection kit
BD
CAT
BD
CAT
BD
CAT
BD
CAT
A
B
C
B’
C’
A’
D
E
...avec circulateur
chauffage extérieur
...avec circulateur
chauffage extérieur
et vanne de mélange
manuelle3voies
...avec circulateur
chauffage intégré
...avec circulateur
chauffage/sanitaire
et vanne directionnelle
intégrés
sinon
Ouvrir en grand la vanne de mélange manuelle
dans le cas d’une chaudière chauffage seul.
Si un ballon sanitaire est intégré, régler la vanne
pour limiterlatempératureàlatempérature
habituelle l’hiver.
Supprimer le circulateur chauffage
Installer une bouteille de découplage
- capacité adaptée (au moins 1,5l)
- débit maxi de 2,5m/h
-raccordementsen1”
3
Groupe
chaudière
initial...
...avec circulateur
chauffage extérieur
et vanne de mélange
manuelle4voies
Supprimer le thermostat d’ambiance
Raccorder les bornes TA de la chaudière
devenues libres aux plots12et13du
module hydraulique.
Supprimer le thermostat d’ambiance
Groupe
chaudière
requis...
Régler le thermostat de la chaudièreàlatempérature habituelle l’hiver.
ParamétrerlarégulationdelaPAC suivant besoin aux lignes et .3700 3705
Raccorder les bornes TA de la chaudière devenues libres
aux plots12et13du module hydraulique.
S’il s’agitd’un contact TA à coupure sur circulateur :
- Raccorder lesplots 12 et 13 pour couper le brûleur tout en
préservant la productiond’eau chaude sanitaire si existante,
OU
-Ne pas raccorder lesplots 12 et 13, la chaudière sera
maintenue en températureen permanence (type bain-marie).
...with external
heating system
circulation pump
Initial
boiler
unit…
Boiler
unit
required…
...with external heating
system circulation
pump and 3-port
manual mixing valve
...with external heating
system circulation
pump and 4-port
manual mixing valve
...with built-in heating
system circulation
pump
...with built-in heating
/ domestic hot water
system circulation
pump and distribution
valve
Open the manual mixing valve wide in the case of boiler
heating only.
If an expansion tank is tted, set the valve to restrict the
temperature to the usual temperature in winter.
Remove the heating system circulation pump.
OR
Remove the room thermostat
Set the valve to restrict the temperature to the usual temperature in winter.
Set the heat pump’s control parameters as required in lines 3700 and 3705.
Remove the room thermostat
Install a disconnection bottle with
- a suitable capacity (a least 1.5 liters)
- a maximum ow rate of 2.5m
3
/h
- 1” connections
Connect the room thermostat terminals that
have been freed on the boiler to stud X14 on the
hydraulic unit.
Connect the room thermostat terminals that have been freed on the
boiler to stud X14 on the hydraulic unit.
If there is an room thermostat contact to be cut on the circulation
pump:
- Connect stud X14 to cut o the burner while maintaining the
production of hot water (if covered by the system)
or
- Do not connect stud X14, the boiler must be constantly kept under
temperature (water bath type).
2.3 Boiler conguration
- Unregulated boiler
" Not suitable for an installation with a heated oor.
Installation instructions "1601 - EN"
Boiler connection kit
- 8 -
20°
20°
BD
CAT
BD
CAT
BD
CAT
BD
CAT
20°
20° 20°
20°
SD
SD
A
B’
C’
A’
D E
20°
20°
20°
20°
...with external
heating system
circulation pump
Initial
boiler
unit…
Boiler
unit
required…
...with external heating
system circulation
pump and 3-port
manual mixing valve
...with external heating
system circulation
pump and 4-port
manual mixing valve
...with built-in
heating system
circulation pump
...with built-in heating
/ domestic hot water
system circulation pump
and distribution valve
Remove the heating system
circulation pump
OR
If room thermostat present
If room thermostat present
If room sensor present
Remove the room thermostat
Set the boiler’s manual thermostat to maximum (if tted).
Set the boiler control to AUTO mode. Match the boiler’s heating gradient to that of the heat pump.
The areas in which the outdoor sensors (for the heat pump and the boiler) must be adjacent to each other.
Controlling the boiler: Lower the summer-winter changeover temperature to 5°C.
Set the heat pump’s control parameters as required in lines 3700 and 3705.
For a previous heated oor system, set parameter 3705 to zero.
Remove the room thermostat
Install a disconnection bottle with
- a suitable capacity (a least 1.5 liters)
- a maximum ow rate of 2.5m3/h
- 1” connections"
Connect the room thermostat
terminals that have been freed
on the boiler to stud X14 on the
hydraulic unit.
Remove the room sensor if the boiler
control system permits this or render
the sensor inactive (deactivate the
inuence of the ambient air and
adaptive automatic mode).
Connect the room thermostat terminals
that have been freed on the boiler to stud
X14 on the hydraulic unit.
If there is an room thermostat contact
to be cut on the circulation pump, do
not connect stud X14, the boiler must
be constantly kept at the temperature
calculated by the control system.
2.4 Boiler conguration
- Regulated boiler
Installation instructions "1601 - EN" - 9 -
Boiler connection kit
2.5 Electrical connections
Ensure that the general electrical power supply has
been cut o before starting any repair work.
The electrical installation must be conducted in
accordance with the prevailing regulations.
The electrical connections must only be made when all
the other tting operations have been completed (xing,
assembly, etc.).
Remark: In the case of a heated oor, Insert the
oor heating thermal safety device between the X12
connector and the oor heating circulation pump.
Make the following connections:
• 5 - Disconnect the X13 and X14 connectors
(single phase electrical back-up, see gure 7).
• 6 - Disconnect the X82 connector
(3-phase electrical back-up, see gure 8).
• 7 - Disconnect or not connect the power supply of the
electric back-up.
X13
RP1 RP2
X14
L N
gure 7 - Disconnection of the single phase electrical back-up
5
Regulation
board
L1 L2 L3
X82
gure 8 - Disconnection of the 3-phase electrical back-up
6
Regulation
board
7
7
Installation instructions "1601 - EN"
Boiler connection kit
- 10 -
2.6 Pre-utilization check
- Please refer to the manual provided with the HP.
- Please refer to the instructions supplied with the boiler.
2.6.1 Boiler connection operating test
The distribution valve of the boiler connection and of the
boiler can be engaged by setting the 7141 parameter to
"On" (Emergency operation = "On").
" Do not forget to reset the parameter to "O"
after the test.
A
B
Valve motor
release button
Manual operation:
opens all the channels for the lling
and/or drainage.
AB
X10
X11
X12
X13
X14
X15
X30
X50
X70
X75
X80
X82
X83
X84
X86
X100
C.C
X60
Défauts externes/
External defaults
Délestage /Power shedding
Tarifs (HP/HC; Jour/Nuit)
Taris peak times/ o-peak times
Ou/
Or
1+N
230 V
RD
BU
GN/YE
BN
L1
N
1
2
3
L
N
Ou/
Or
0/I
M
2a
1a
1b
2b
EX1
EX2
EX3
BK
BN
BU
L
N
B2
M
B1
3
2
1
Départ /
Flow sensor
Retour /
Return sensor
L
N
COM
RP ECS
L
N
L
N
230V
Contact d'organe externe
External device connection
ACI
électrode
Ballon ECS /
DHW Tank
L
N
1
2
3
4
5
L
N
COM
L
Option
Relève chaudière
Boiler connection
Ou / Or
Option
Appoint électrique monophasé / triphasé
Electric back-up Single phase / 3-Phase
Option AVS 55
Ou / Or
Option 2 circuits
2 circuits option
124534 ind. 0
A1 A2
B1 B2
L
RP1
RP2
N
( ) 3KW
(=) 6KW
L
Option Appoint électrique monophasé
Electric back-up Single phase Option
TA
M
Option Relève chaudière
Boiler connection option
M
Piscine /
Swimming pool sensor
X10
FP
X110
X112
X152
X150
X153
X154
X100
FP
Option AVS 55
Piscine /
Swimming pool sensor
X10
BK
BN
BU
M
X110
X112
X152
X150
X153
X154
X100
Ou/
Or
B2
M
B1
3
2
1
Départ /
Flow sensor
M
C.C
M
Option 2 circuits
2 circuits option
gure 9 - Electrical wiring
• 8 - Distribution valve (deviation boiler) on the X13
connector.
• 9 - Connect the boiler control to the X14 connector.
Please refer to the instructions supplied with the boiler.
• () - Stick the label of wiring inside the front plate of the
hydraulic unit.
M
X13
X12
BK
BN
BU
X14
TA
Colour code
BK Black
BN Brown
BU Blue
Distribution valve
(deviation boiler)
Boiler control
(boiler thermostat)
Regulation
board
9
8
gure 10 - Distribution valve
gure 11 - Electrical wiring label
Installation instructions "1601 - EN" - 11 -
Boiler connection kit
Date of installation :
Contact of your heating technician or your after-sales service.
This appliance is marked with this symbol. This means that electrical and electronic products shall not be mixed with general household waste.
European Community countries(*), Norway, Iceland and Liechtenstein should have a dedicated collection system for these products.
Do not try to dismantle the system yourself as this could have harmful eects on your health and on the environment.
The dismantling and treatment of refrigerant, oil and other parts must be done by a qualied installer in accordance with relevant local and national regulations.
This appliance must be treated at a specialized treatment facility for re-use, recycling and other forms of recovery and shall not be disposed of in the municipal waste stream.
Please contact the installer or local authority for more information.
* subject to the national law of each member state
Subject to modications without notice. Non contractual document.
Nr Code Designation ...............Type ......Qty
1 142735 Gasket ...................26x34 .......03
2 184088 Pipe of valve ..........................01
3 184089 Pipe .................................01
4 988109 Valve ................................01
5 150322 Motor ................................01
6 184090 Pipe .................................01
7 110865 Connector ...............2 studs .......01
8 109695 Bundle ...............................01
9 157326 Cable grommet ........................02
3 Spare parts
When ordering spare parts, specify the appliance type and
serial number, the name of the part and the part number.
gure 12 - Spare parts Boiler connection kit
1
4
1
5
8
7
2
6
9
Complies with:
- Low voltage directive 2014/35/UE, under standard NF EN 60335-1 et NF EN 60335-2-102.
- Electromagnetic compatibility Diretive 2014/30/UE.
3
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
Fujitsu UTW-KBDXD Guide d'installation
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- Guide d'installation
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dans d''autres langues
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