Nibe S1255 Benutzerhandbuch

Installer manual

Ground source heat pump

NIBE S1255

IHB EN 2150-1

631729

Quick guide

NAVIGATION

Browse

ScrollSelect

The dots at the bottom

edge show that there

are more pages.

If the menu has several

sub-menus, you can

see more information

by dragging up or

down with your finger.

Most options and func-

tions are activated by

lightly pressing on the

display with your finger.

Drag to the right or left

with your finger to

browse between the

pages.

Setting the indoor temperature.

13.45 3 October

Climate system 1

Offset

Heating

Smartguide

Hi!

Your system is working properly. Do you want help making

changes?

Yes please, take me to Smartguide.

October13.45 3

Here, you can set the temperature in the installation's zones.Smartguide helps you both to view information about the current

status and to make the most common settings easily. The inform-

ation that you see depends on the product you have and the ac-

cessories that are connected to the product.

Product overview

Company AB

Phone number

S1255

01234567890123

1.0.0

Product

overview

Product name

Serial number

Software

Service

October13.45 3

Update

Increasing hot water temperature

13.45 3 October

More hot water

Hot water

Here, you can find information about product name, the product's

serial number, the version of the software and service. When

there is new software to download, you can do it here (provided

that S1255 is connected to myUplink).

Here, you can start or stop a temporary increase in the hot water

temperature.

41 Important information

4Safety information

4Symbols

4Marking

4Serial number

5Inspection of the installation

62 Delivery and handling

6Transport

6Assembly

7Supplied components

7Handling panels

9Removing insulation

103 The heat pump design

10General

11Distribution boxes

11Cooling sections

134 Pipe connections

13General

14Dimensions and pipe connections

15Brine side

16Climate system

16Cold and hot water

16Installation alternative

185 Electrical connections

18General

20Connections

25Settings

286 Commissioning and adjusting

28Preparations

28Filling and venting

29Start-up and inspection

Setting the cooling/heating curveSetting the

heating curve

337 myUplink

33Specification

33Connection

33Range of services

348 Control - Introduction

34Display unit

35Navigation

35Menu types

37Climate systems and zones

389 Control - Menus

38Menu 1 - Indoor climate

41Menu 2 - Hot water

43Menu 3 - Info

44Menu 4 - My system

47Menu 5 - Connection

48Menu 6 - Scheduling

49Menu 7 - Installer settings

5710 Service

57Service actions

6211 Disturbances in comfort

62Info-menu

62Manage alarm

62Troubleshooting

6412 Accessories

6613 Technical data

66Dimensions and setting-out coordinates

67Electrical data

68Technical specifications

73Energy labelling

84Item register

87Contact information

3Table of ContentsNIBE S1255

Table of Contents

Safety information

This manual describes installation and service procedures

for implementation by specialists.

The manual must be left with the customer.

Symbols

Explanation of symbols that may be present in this manual.

NOTE

This symbol indicates danger to person or machine.

Caution

This symbol indicates important information about

what you should consider when installing or servi-

cing the installation.

TIP

This symbol indicates tips on how to facilitate us-

ing the product.

Marking

Explanation of symbols that may be present on the product’s

label(s).

Read the User Manual.

Read the Installer Manual.

Serial number

The serial number can be found at the bottom right on S1255,

in the display on the home screen "Product overview" and

on the type plate(PZ1).

Caution

You need the product's (14 digit) serial number for

servicing and support.

NIBE S1255Chapter 1 | Important information4

Important information

Inspection of the installation

Current regulations require the heating installation to be inspected before it is commissioned. The inspection must be

carried out by a suitably qualified person. In addition, fill in the page for the installation data in the User Manual.

DateSignatureNotesDescription

✔

Brine side

System flushed

System vented

Antifreeze

Level/Expansion vessel

Filterball (particle filter)

Safety valve

Shut off valves

Circulation pump setting

Climate system

System flushed

System vented

Expansion vessel

Filterball (particle filter)

Safety valve

Shut off valves

Circulation pump setting

Electricity

Connections

Main voltage

Phase voltage

Fuses heat pump

Fuses property

Outside sensor

Room sensor

Current sensor

Safety breaker

Earth circuit-breaker

Set emergency mode in menu 7.1.8.2

5Chapter 1 | Important informationNIBE S1255

Transport

S1255 should be transported and stored vertically in a dry

place. When being moved into a building, S1255 may be leant

back 45 °.

Ensure that S1255 has not been damaged during transport.

Caution

The product can be tail heavy.

Remove the outer panels in order to protect them when

moving in confined spaces inside buildings.

EXTRACTING THE COOLING MODULE

To simplify transport and service, the heat pump can be

separated by pulling the cooling module out from the cabin-

et.

See page 59 for instructions about the separation.

Assembly

•Place S1255 on a solid foundation indoors that can take

the heat pump’s weight.

Use the product’s adjustable feet to attain a horizontal

and stable set-up.

30 - 50 mm

15 - 40 mm

20-55 mm

•Because water comes from S1255, the area where the

heating pump is located must be equipped with floor

drainage.

•Install with its back to an outside wall, ideally in a room

where noise does not matter, in order to eliminate noise

problems. If this is not possible, avoid placing it against a

wall behind a bedroom or other room where noise may be

a problem.

•Wherever the unit is located, walls to sound sensitive

rooms should be fitted with sound insulation.

•Route pipes so they are not fixed to an internal wall that

backs on to a bedroom or living room.

INSTALLATION AREA

Leave a free space of 800 mm in front of the product. Ap-

prox. 50 mm free space is required on each side, to allow

the side panels to be removed (see image). All service on

S1255 can be carried out from the front, however the right-

hand panel may need to be removed. Leave free space

between the heat pump and the wall behind (and any routing

of supply cables and pipes), to reduce the risk of any vibra-

tions being propagated.

(50) (50)

800

* A normal installation needs 300 – 400 mm (any side) for

connection equipment, e.g. level vessel, valves and electrical

equipment.

NIBE S1255Chapter 2 | Delivery and handling6

Delivery and handling

Supplied components

LEK

Current sensor1

3 x

Room

sensor(BT50)

1 x

Outdoor temperat-

ure sensor (BT1)

1 x

LEK

Safety valve (FL3)

0.3 MPa (3 bar)1

1 x

LEK

Level vessel (CM2)1

1 x

O-rings

8 x

Compression ring

couplings

6 KW

2 x (ø28 x G25)

2 x (ø22 x G20)

12/16 KW

4 x (ø28 x G25)

Filterball (QZ2)

6 KW

1 x G1

1 x G3/4

12/16 KW

1 x G1

1 x G1 1/4

1Not Italy and the DACH countries.

LOCATION

The kit of supplied items is placed in packaging on top of

the heat pump.

Handling panels

OPEN FRONT HATCH

Press the hatch's top left corner to open it.

REMOVE THE FRONT

1. Remove the screw in the hole next to the on/off button

(SF1).

2. Pull the panel's top edge towards you and lift diagonally

upwards to remove it from the frame.

ASSEMBLE THE FRONT

1. Hook one bottom corner of the front onto the frame.

7Chapter 2 | Delivery and handlingNIBE S1255

2. Hook the other corner in place.

3. Check the display is straight. Adjust if necessary.

4. Press the top of the front section against the frame and

screw it into place.

REMOVE SIDE PANEL

The side panels can be removed to facilitate the installation.

1. Remove the screws from the upper and lower edges.

2. Twist the panel slightly outwards.

3. Move the panel outwards and backwards.

4. Assembly takes place in the reverse order.

NIBE S1255Chapter 2 | Delivery and handling8

Removing insulation

The insulation can be removed to make installation easier.

9Chapter 2 | Delivery and handlingNIBE S1255

General

BT7

QN10

BT2

EB1

PZ1

EP14-QM34

EP14-QM31

BT6

EP14-QM32

EP14-QM33

PZ2

QM22

UB1

AA4

SF1

XL1

XL6

XL4 XL3

XL7

XL2

BF1

UB2

FC1

XL5

XF8

FR1

XF3

EP14

PIPE CONNECTIONS

Connection, heating medium flowXL1

Connection, heating medium returnXL2

Connection, cold waterXL3

Connection, hot waterXL4

Connection, HWC1

XL5

Connection, brine inXL6

Connection, brine outXL7

1Only heat pumps with enamelled or stainless steel vessel.

HVAC COMPONENTS

Cooling sectionEP14

EP14-QM31 Shut-off valve, heating medium supply

EP14-QM32 Shut off valve, heating medium return

EP14-QM33 Shut off valve, brine out

EP14-QM34 Shut-off valve, brine in

Venting, coilQM22

Shuttle valve, climate system/water heaterQN10

SENSORS ETC.

Flow meterBF1

Temperature sensors, heating medium flowBT2

Temperature sensor, hot water chargingBT6

Temperature sensor, hot water topBT7

ELECTRICAL COMPONENTS

Display unitAA4

Immersion heaterEB1

Miniature circuit breaker1

FC1

Electrical anode2

FR1

Choke3

RA3

On/off buttonSF1

USB socketXF3

Network connection for myUplinkXF8

1S1255-6 3x400 V is not equipped with miniature circuit breakers (FC1).

2Only heat pump with enamelled vessel.

3Only for S1255-12 3x400 V.

MISCELLANEOUS

Rating platePZ1

Identification plate, cooling modulePZ2

Cable glandUB1

Cable glandUB2

Designations according to standard EN 81346-2.

NIBE S1255Chapter 3 | The heat pump design10

The heat pump design

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