Fujitsu UTW-KBDXD Installation guide

Brand: Fujitsu

Model: UTW-KBDXD

Type: Installation guide

This manual is also suitable for

UTW-KCMXE

Installation instructions

intended for the

professional technician

these must be kept safe

for subsequent consultation

" 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 congure these

units.

Fujitsu General (Euro) GmbH

Fritz-Vomfelde-Strasse 26/32

40547 Düsseldorf - Germany

Subject to modications 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 congurations 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

194

124

1279,5

Back view

Heating

ow

Heating

return

Boiler

1.3 Specications

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

mCE

1 mbar=10 mmCE=100 Pa

m/h

1,5 20,50

mCE

1 mbar=10 mmCE=100 Pa

m/h

1,5 20,50

Variable pressure

Constante pressure

Installation instructions "1601 - EN"

Boiler connection kit

- 2 -

175 210

1840

244

1189

1141

648

1296

698

103

1850

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

Boiler

Hydraulic

unit

Boiler conguration:

see pages 8 & 9.

Installation instructions "1601 - EN" - 3 -

Boiler connection kit

gure 4 - Boiler connection kit

1.5 Description

Distribution

valve

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 Teon 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

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

• Conguration 3 : Boiler connection and 1 heating circuit.

Ssa

Sae

CAR

SDp

SaeC

SSe

Rdyn*

SA*

BT *

VDI

CAT

Bre

CCI

VDI

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

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

• Conguration 4 : Boiler connection and 2 heating circuits.

Ssa

Sae

CAR

SDp

SaeC

SSe

Rdyn*

SA*

BT *

CCM

SDpM

K2c

CAR

AVS

Circuit 1

Circuit 2

Rdyn*

SA*

Rdyn*

SA2 *

BT *

CAR

VDI

CAT

Bre

CCI

VDI

CCI

Exemple

groupe chaudière

Exemple

groupe chaudière

Example

boiler unit

Example

boiler unit

SA2

Installation instructions "1601 - EN" - 7 -

Boiler connection kit

CAT

B’

C’

A’

...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”

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,

-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.

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

- 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)

- Do not connect stud X14, the boiler must be constantly kept under

temperature (water bath type).

2.3 Boiler conguration

- Unregulated boiler

" Not suitable for an installation with a heated oor.

Installation instructions "1601 - EN"

Boiler connection kit

- 8 -

20°

CAT

20°

20° 20°

20°

B’

C’

A’

D E

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

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

inuence 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 conguration

- 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

Regulation

board

L1 L2 L3

X82

gure 8 - Disconnection of the 3-phase electrical back-up

Regulation

board

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.

Valve motor

release button

Manual operation:

opens all the channels for the lling

and/or drainage.

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)

Taris peak times/ o-peak times

Ou/

1+N

230 V

GN/YE

Ou/

0/I

EX1

EX2

EX3

Départ /

Flow sensor

Retour /

Return sensor

COM

RP ECS

230V

Contact d'organe externe

External device connection

ACI

électrode

Ballon ECS /

DHW Tank

COM

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

RP1

RP2

( ) 3KW

(=) 6KW

Option Appoint électrique monophasé

Electric back-up Single phase Option

Option Relève chaudière

Boiler connection option

Piscine /

Swimming pool sensor

X10

X110

X112

X152

X150

X153

X154

X100

Option AVS 55

Piscine /

Swimming pool sensor

X10

X110

X112

X152

X150

X153

X154

X100

Ou/

Départ /

Flow sensor

C.C

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.

X13

X12

X14

Colour code

BK Black

BN Brown

BU Blue

Distribution valve

(deviation boiler)

Boiler control

(boiler thermostat)

Regulation

board

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 eects on your health and on the environment.

The dismantling and treatment of refrigerant, oil and other parts must be done by a qualied 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 modications 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