Fujitsu UTW-KDWXG Installation guide

Brand: Fujitsu

Model: UTW-KDWXG

Type: Installation guide

Installation instructions

intended for the

professional technician

these must be kept safe

for subsequent consultation

Document n° 1749-2 ~ 03/07/2018

Fujitsu General (Euro) GmbH

Werftstrasse 20

40549 Düsseldorf - Germany

Subject to modications without notice.

Non contractual document.

FR EN DE EN IT

ES PT PL PT PT

DHW Kit

code UTW-KDW*G

To connect a DHW tank

to a monobloc heat pump

with an hydraulic unit WSYP100DG6

230 V

L N

" This manual mainly concerns the installation and

connection of the DHW kit.

" Please refer to the heat pump and DHW tank technical

manuals for how to install and congure these items.

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DHW kit - code UTW-KDW*G

Contents

Description of the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Scope of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

The DHW sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Fitting the DHW kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Connecting to the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Overall hydraulic layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

DHW comfort temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

DHW tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Installation instructions "1749 - EN"

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DHW kit - code UTW-KDW*G

1 Description of the equipment

1.1 Package

• 1 package : DHW kit.

On reception, before you t anything, it is essential

that you check the parts received and search for any

damage caused during transport.

230 V

L N

gure 2 - Présentation du kit sanitaire

1.2 Scope of application

The plumbing kit enables you to connect a DHW

tank to a monobloc heat pump with an hydraulic unit

WSYP100DG6.

Warning !

The heat pump produces the domestic hot water (DHW),

which is then additively heated, if required, by electrical

back-up heating inside the tank: The hot water tank

should be equipped with an electrical backup in

order to ensure a target temperature above 45°C and

for legionella protection cycles.

1.3 The DHW sensor

The sensor must be installed in place of the thermostat

regulation bulb in the electrical back-up heating system.

- Temporarily remove the thermostat.

- Extract and isolate the regulation bulb from the

electrical back-up heating system.

- Place the hot water sensor in the housing for the

cylinder sensors.

- Re-install the thermostat.

DHW

sensor

ACI

system

Thermostat regulation

bulb for the electrical back-up

heating extracted from the glove

nger and isolated

1.4 Specications

Power absorbed . . . . . . . . . . . . W . . . . . . < 25

Maximum operating pressure . . . . bar . . . . . . . . 3

Supply voltage . . . . . . . . . . . . . . . .230V - 50HZ

Boiler connection diameter . . . . . mm . . . . 26x34

Flow/return diameter (male) . . . . . mm . . . . 26x34

Weight . . . . . . . . . . . . . . . . .kg . . . . . . . 2,4

Installation instructions "1749 - EN"

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DHW kit - code UTW-KDW*G

98 70

450

803

845

457

479

gure 3 - Dimensions in mm (Hydraulic unit + DHW kit)

1.5 Description

Front view Side view

Installation instructions "1749 - EN"

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DHW kit - code UTW-KDW*G

2 Installation instructions

2.1 Fitting the DHW kit

" Carefully comply with the direction for tting

the distribution valve.

- Channel AB: Inlet from the hydraulic unit.

- Open channel A: Outlet to DHW tank.

- Open channel B: Outlet to the heating circuit.

• 1 - Remove the "pipe support" of the HP.

- Remove the heating ow sensor from the ow pipe

(see gure 7, page 6).

• 2 - Remove and suppress the HP ow pipe.

gure 1 - 3 - Fitting the DHW kit (not overtighten).

- Install the DHW kit into the HP. Tighten DHW kit ttings.

- Fix the ow sensor on the facility’s ow pipe (see gure

7, page 6).

• 4 - Fitting the "pipe support".

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 4 - Fitting the DHW kit

gure 5 - Installing the DHW kit into the hydraulic unit

A, B, AB Distribution valve orientation.

C Hydraulic unit connection.

Installation instructions "1749 - EN"

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DHW kit - code UTW-KDW*G

2.2 Hydraulic connections

The connection must comply with good trade practice

according to local building regulations.

Tightening torque: 15 to 35 Nm.

The appliance must be connected to the installation

with union connectors and shut-off 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).

gure 6 - Hydraulic connections

Hydraulic Unit + DHW kit

gure 7 - Position of the ow temperature sensor

Flow temperature sensor on the HP… …with DHW kit

Installation instructions "1749 - EN"

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DHW kit - code UTW-KDW*G

Rdyn*

SA*

Ssa

Caption :

AE - Electrical backup

KS - DHW kit

MH - Hydraulic unit

PC - Heating-cooling oor

R - Radiators

Rdyn* - Dynamic radiators

SA* - Room thermostat (option/without Rdyn)

SSa - DHW sensor

SE - Outdoor sensor

VD - Distribution valve

Heat Pump

Hydraulic Unit DHW Tank

Heating Circuit

2.2.1 Overall hydraulic layout

• Conguration 1 : heating circuit and DHW tank (with electrical back-up)

Installation instructions "1749 - EN"

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DHW kit - code UTW-KDW*G

2.3 Electrical connections

The electrical connections must only be made when all

the other tting operations have been completed (xing,

assembly, etc.).

" Do not place the sensor lines and the sector

supply lines near in order to avoid interferences

due to voltage points in the sector supply.

Ensure that all the electrical cables are housed

in the spaces provided for this purpose (inside

the lifting handles). To avoid undue interferences

due to voltage peaks, use a shielded cable

(standard telephone cable) to connect the sensors.

gure 8 - Cable bushing

Cable grommet

Sensors

Cable grommet

Power

• 7 - Place the relay-terminal block assembly in the

electrical box.

• 8 - Connect the hot water tank to the 3 and 4 terminals

of the X84 connector of the HP’s regulation board.

• 9 - Connect the bundle with the 5-stud connector to

X15.

• 10 - Connect the distribution valve.

• 11 - Connect the DHW tank’s resistance to Earth

terminal and to relay RP DHW on terminals 2 (L) and

4 (N).

• () - Connect the power supply of the tank’s integral

corrosion protection system (active anti-corrosion

protection), should it include one, to a continuous

power supply which is protected to the level required

by the manufacturer.

• 12 - Connect the hot water tank’s power supply

originating from the electrical case to the L, N, Earth

terminals of the DHW kit terminal block (Protection by

rated circuit breaker).

• Contract with the power provider

• The heat pump's operation can be controlled to suit

special contracts (e.g. off-peak, day/night). In particular,

domestic hot water (DHW) at Nominal temperature will

be produced during the off-peak hours when electricity

is cheaper.

• 13 - Connect the “energy provider” contact to the EX2

inlet of the X11 connector.

230V on input EX2 = "Peak hours" information activated.

Set the 83 or 1620 parameter according to the desired

operation.

• () - Stick the label of wiring inside the front plate of the

hydraulic unit.

Installation instructions "1749 - EN"

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DHW kit - code UTW-KDW*G

gure 9 - DHW kit Electrical connections

L N

X15

X11

X84

230 V

L N

DHW

sensor

Distribution

valve

“energy provider” contact

Electrical supply

230 V

Regulation

board

RPECS

Resistance of the

electrical back-up

(DHW tank)

12 11

Colour code

BK Black

BN Brown

BU Blue

Installation instructions "1749 - EN"

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DHW kit - code UTW-KDW*G

2.4 DHW comfort temperature

To ensure a DHW setting over 45°C, the electrical

back-up heating or the boiler must be left on.

2.5 Details

2.5.1 DHW tank

The Summer/Winter switch (if present) must be set

to Summer to enable the electrical back-up heating

system to operate.

gure 10 - Distribution valve

Valve motor

release button

Manual operation:

opens all the channels for the lling

and/or drainage.

Installation instructions "1749 - EN"

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DHW kit - code UTW-KDW*G

3 Spare parts

When ordering spare parts, specify the appliance type

and serial number, the name of the part and the part

number.

Nr Code Designation ...............Type .......Qty

1 909136 Relay + Terminal block ............ . . . . . . .01

2 109444 Bundle ......................... . . . . . . .01

3 110866 Connector .................. 5 x ........01

4 198755 Sensor ........................ . . . . . . .01

5 134102 Isolating sheath ................. . . . 0,20 m

6 142735 Gasket .................26x34. . . . . . . .05

7 184064 Pipe ................................01

8 184065 Pipe ................................01

9 988109 Valve ...............................01

10 150322 Motor ...............................01

11 184066 Pipe ................................01

12 104863 Stop ...................... 1" F ........01

gure 11 - DHW kit Spare parts

230 V

L N

Installation instructions "1749 - EN"

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 effects 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.

Complies with:

- Low voltage directive 2014/35/UE, under standards NF EN 60335-1 and NF EN 60335-2-102.

- Electromagnetic compatibility Diretive 2014/30/UE.