Bosch ACC MT Bedienungsanleitung

6720892132 (2021/10) GB/UG/TZ/SC/KE/RW

Installation instructions/Quick-Start-Guide

Central controller with touch display

Air Center Control

ACC MT

Table of contents

Air Center Control – 6720892132 (2021/10)

Table of contents

1 Explanation of symbols and safety instructions . . . . . .3

1.1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . .3

1.2 General safety instructions . . . . . . . . . . . . . . . . . . . .3

2 Product Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.1 Product Description. . . . . . . . . . . . . . . . . . . . . . . . . .5

2.2 Compatible variable refrigerant flow system

components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.3 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.4 Status LED indication . . . . . . . . . . . . . . . . . . . . . . . .7

2.5 Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2.6 Connections and control elements . . . . . . . . . . . . . .9

2.6.1 Connections on reverse side without AC EXP . . . . .9

2.6.2 Restore default setting of central controller . . . . 10

2.6.3 Connections on reverse side (AC EXP only). . . . . 10

2.6.4 Connections – view from above . . . . . . . . . . . . . . 11

2.6.5 Connections on right. . . . . . . . . . . . . . . . . . . . . . . 11

2.6.6 Power supply connection . . . . . . . . . . . . . . . . . . . 12

2.6.7 Mains power supply (part number

8733502082). . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.7 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1 Preparations before installation . . . . . . . . . . . . . . 14

3.1.1 Installation site . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1.2 Use cable feed (optional) . . . . . . . . . . . . . . . . . . . 14

3.1.3 Inserting expansion card AC EXP (optional) . . . . 14

3.1.4 Cable specifications . . . . . . . . . . . . . . . . . . . . . . . 15

3.2 Types of installation . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2.1 Installation on finished walls without cable

conduit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2.2 Installation on finished walls with cable

conduit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2.3 Hook in central controller and fasten . . . . . . . . . . 18

3.2.4 Removing the central controller . . . . . . . . . . . . . . 18

4 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.1 Configuration wizard . . . . . . . . . . . . . . . . . . . . . . . 19

4.2 Recommended system configuration. . . . . . . . . . 19

5 First steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.1 Overview Dashboard . . . . . . . . . . . . . . . . . . . . . . . 20

5.2 Changing the keyboard assignment . . . . . . . . . . . 21

6 System handover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

7 Help and operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

8 Environmental protection and disposal . . . . . . . . . . . 23

9 Open Source Software . . . . . . . . . . . . . . . . . . . . . . . . . 23

10 Data protection notice . . . . . . . . . . . . . . . . . . . . . . . . . 23

Explanation of symbols and safety instructions

Air Center Control – 6720892132 (2021/10)

1 Explanation of symbols and safety

instructions

1.1 Explanation of symbols

Warnings

Inwarnings, signal wordsat the beginningof awarning areused

to indicate the type and seriousness of the ensuing risk if

measures for minimizing danger are not taken.

The following signal words are defined and can be used in this

document:

DANGER

DANGER indicates that severe or life-threatening personal

injury will occur.

WARNING

WARNING indicates that severe to life-threatening personal

injury may occur.

CAUTION

CAUTION indicates that minor to medium personal injury may

occur.

NOTICE

NOTICE indicates that material damage may occur.

Important information

The info symbol indicates important information where there is

no risk to people or property.

Additional symbols

Table 1

1.2 General safety instructions

Operation of the ACC MT central controller in the VRF air

conditioning system cannot result in conditions that are

hazardous to the user and environment.

HNotices for the target group

These installation instructions are

intended for qualified persons who are

skilled in dealing with climate, heating

and electrical systems. All instructions

must be observed. Failure to comply

with instructions may result in material

damage and personal injury, including

danger to life.

▶ Read installation manual (outdoor

unit, indoor unit, control unit, ERV

ventilation unit, etc.) prior to

installation.

▶ Observe the safety instructions and

warnings.

▶ Follow national and regional

regulations, technical regulations and

guidelines.

HIntended use

▶ Only use the product to control Air

Flux/MDCI VRF air conditioning

systems (VRF = Variable Refrigerant

Flow).

All other use is considered unsuitable.

Any damage resulting from unsuitable

operations is excluded from liability.

Symbol Meaning

▶ a step in an action sequence

a reference to a related part in the document

•alistentry

–a list entry (second level)

Explanation of symbols and safety instructions

Air Center Control – 6720892132 (2021/10)

HElectrical work

Electrical work must only be carried out

by a qualified electrician.

▶ Before starting electrical work:

– Isolate all poles of the mains

voltage and secure against

reconnection.

– Make sure the mains voltage is

disconnected.

▶ Onlyconnect theproducttothemains

voltage using the supplied power

supply unit or a professionally

installed cable in accordance with the

specifications (Table 4, page 15).

▶ Observe the wiring diagrams of other

system components as well.

HNotes regarding fire protection

The variable refrigerant flow central

controller must not be installed in the

following locations:

• Rooms in which fat residues or steam

could damage plastic parts, e. g.

kitchens.

• Locations where harmful gases, e.g.

gases containing sulphuric acid, are

present as this can corrode

components.

• Near machines that give off

electromagnetic radiation.

• Locations where combustible gases

or dusts are present.

• Inlocations with hightemperaturesor

near an open flame.

• Damp rooms where water can enter

the device and cause a short-circuit.

HOriginal spare parts and

accessories

The manufacturer assumes no liability

for damage caused by spare parts not

supplied by the manufacturer.

▶ Use only original spare parts and

accessories from the manufacturer.

HSafety instructions for care and

cleaning

The projected capacitive touchscreen

(PCT) contains a layer of tempered

glass. This could be damaged if the

touchscreen is used incorrectly.

▶ Only operate the touchscreen with a

finger or a capacitive stylus.

▶ Protect against sharp edges and

scratching.

▶ To clean, wipe with a soft cloth.

▶ Do not use organic solvents, acids or

alkaline solutions.

▶ Wipe off water or fat residue without

delay.

HDehumidifying

The Air Flux VRF air conditioning system

can not be used for setting the defined

absolute moisture content of the

ambient air. For applications, where

moisture is critical, such as for example

in museums or libraries, special

dehumidifying or humidifying systems

must be used.

Product Information

Air Center Control – 6720892132 (2021/10)

2ProductInformation

2.1 Product Description

The Air Flux product series is an air-conditioning system

solution for commercial buildings, e.g. offices, hotels or

apartment complexes.

The variable refrigerant flow central controller with ACC MT

(Air Center Control) touch screen – referred to as "central

controller" in this document – plays a key role in the operation

of the air-conditioning system. The central controller is

primarily designed to be used and operated by professional

users in the area of HVAC technology who are authorised to

make more in-depth system settings.

The central controller controls up to 32 outdoor or 64 indoor

units (or other units of the type ERV, AF-HB or AHU SET) via an

XYE communication cable. Up to 128 outdoor units with up to

256 indoor units (or other units of the type ERV, AF-HB or AHU

SET) can be controlled via 4 XYE cables in total using an

optional expansion board. The outdoor and indoor units

communicate via the PQE protocol.

The central controller can be operated via 3 different user

levels or user roles:

•User

•Expert

•Administrator

Users with the role of “User” can control indoor units either

individually or as a group via the central controller. These users

can only perform the most important basic settings.

Users with the role of “Expert”, e. g. Facility Manager, can

access functions in the central controller such as grouping of

indoor units, user management, assignment of user roles and

advanced settings for time programs and diagnostics.

Persons with the “Administrator” user role have unrestricted

rights and can manage the rights of other users.

The central controller can be connected to a commercially-

available PC via a local network (LAN).

Additionally, a connection to building management systems of

third-party providers can be established via Modbus/TCP.

Connections, to fire-alarm call points or emergency flasher

systems for example, can be established via additional

interfaces such as digital inputs and outputs.1)

To protect against unauthorised access to the central controller

from the Internet:

▶ Use suitable firewall (Figure 1, page 6).

1) Function depends on which version of the central

controller is used

Product Information

Air Center Control – 6720892132 (2021/10)

System overview

Fig. 1 VRF system overview (schematic overview; the system configuration shown is only an example, not all options are shown;

the actual wiring/piping is not shown in this figure)

1) Functionality optional

2) Adaptor AC-CM for connection of outdoor units of the

type MDCI (some functions of these systems are

restricted)

3) Auto addressing is the default setting in the outdoor

units. However, this only leads to a successful system

scan if only a refrigerant system is connected.

If more than one refrigerant system is connected to an

XYE cable, the addressing must be carried out manually

in combination with unique IDU addresses.

4) The AHU set can be connected to an AHU (air handling

unit/ventilation unit). The AHU is a system component

which is not available from Bosch and must be sourced

from/provided by a third party.

0010024046-005

AF-SB AF-SB AF-SB

XYE

Air Flux Outdoor Units AF 6300

Slave

Master

Air Flux

Indoor

PQE

ERV

X1X2

ARC C-1

X1X2

ARC C-1

X1X2

ARC C-1

X1X2

ARC C-1

ARC C IR

Internet PC Access

AHU KIT

AHU

AHU KIT

AF-HB

Air Center Control ACC MT

AC EXP

(via LAN)

Ethernet 1: LAN / WAN1

Modbus/RTU

XYE

PQE

ERV

Power Meter

X1X2 X1X2

ARC H-1

ARC C-1

X1X2

ARC C-1 ARC C IR

1) 1)

MDCIMDCI

Refr.system n

Air Flux Outdoor Units AF 5300

Air Flux Outdoor Unit AF 5300

AC-CM

Refr.system n 2)

3) Slave

Slave

Master

X1X2 X1X2

ARC C-1ARC C-1 ARC C IR

Product Information

Air Center Control – 6720892132 (2021/10)

2.2 Compatible variable refrigerant flow system

components

The central controller is compatible with the following system

components:

• Air Flux outdoor unit AF 5300

• Air Flux outdoor unit AF 6300

• Air Flux indoor unit

• ERV ventilation unit

•HTHydroBoxAF-HB

•AirFluxAHUSET

• Expansion card for central controller AC EXP

• Room Controller VRF ARC C-1/H-1

• Variable refrigerant flow infra-red remote control ARC C IR

• MDCI outdoor unit

•AdaptorAC-CM

For more information on compatible variable refrigerant flow

system components Air Flux product catalogue.

2.3 Scope of delivery

Fig. 2 Scope of delivery of central controller

[1] Variable refrigerant flow central controller with touch

screen

[2] Wall mounting bracket

[3] Power source for central controller with country-specific

adapter

[4] Installer Guide

[5] 1 × Digital terminal I/O

[6] 1 × XYE terminal

[7] 1 × Power source terminal

[8] 2 × Insert for cable feed, each with 2 fixing screws

[9] USB stick with open source information

(open source information also available at

https://www.bosch-thermotechnology.com/global/)

[10] Ferrite (only included in scope of delivery for units with

the part number 8733502082)

The expansion card AC EXP is not included in the scope of

delivery.

2.4 Status LED indication

The front top right-hand side of the VRF central controller

(Figure 2, [1], page 7) has a status LED indicator.

Thisindicatesthe currentoperatingor faultstatusof the central

controller:

Table 2 Status LED indication

0010023914-003

123

7 68

10 9 5

Status display LED Description

Solid white Nofaultsare present. Starting

procedure of the central

controller is complete.

Flashing white Starting procedure of the

central controller in progress.

Solid red System fault is present (more

information is shown on the

display). Central controller is

in operation.

Flashing red Afault is present in thecentral

controller.

Product Information

Air Center Control – 6720892132 (2021/10)

2.5 Dimensions

Fig. 3 Dimensions (in mm)

0010023910-002

271

188

10,1"

R 6,6

R 2,5

R 105,1

R 100

(4x)

(2x)

(16x)

R 56

(2x)

Product Information

Air Center Control – 6720892132 (2021/10)

2.6 Connections and control elements

The PoE+ (Power over Ethernet) function is not available for

devices with the part number 8733502082.

2.6.1 Connections on reverse side without AC EXP

Fig. 4 Connections on rear (without AC EXP expansion board for ACC MT central controller; shown without cover)

[1] Slot for Micro SD card (insert card into the slot below the

marking in the holder with the contacts facing upwards

and pointing towards the marking)

[2] XYE 1

[3] Digital I/O

[4] Factory-Reset (default setting) with LED

[5] Ethernet 1 incl. PoE+ WAN + LAN

[6] DCin power supply

[7] Screw (locking device of central controller on wall

mounting bracket)

Notice: When inserting the Micro-SD card, make sure it is

actually in the slot and is not being pushed throughunderneath

it on the bottom panel.

If an AC EXP expansion board is used, it must be removed in

order to access the slot for the Micro-SD card.

0010024444-002

234 51

Product Information

Air Center Control – 6720892132 (2021/10)

2.6.2 Restore default setting of central controller

When the default setting of the central controller is restored, all

configurations and settings are reset to the delivered condition.

To restore the default setting of the central controller:

▶ Press and hold Factory-Reset [Fig. 4, Item 4].

The LED next to the pushbutton flashes after roughly

5seconds.

▶ Briefly release the Factory-Reset while LED is flashing.

▶ Press Factory-Reset again and hold for at least 5 seconds

while the LED is flashing.

The LED lights up continuously. The central controller has

now been reset to the default setting.

2.6.3 Connections on reverse side (AC EXP only)

Fig. 5 Connections on rear (only AC EXP expansion board connections for ACC MT central controller; shown without cover)

[8] Analogue I/O

[9] Ethernet 2 Modbus/TCP

[10] XYE 2

[11] XYE 3

[12] XYE 4

[13] Modbus/RTU

0010024445-002

8 9

10111213

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