Exhausto VEX320C Manual de usuario

Electrical installation guide

for VEX320C/330C/330H with EXact2 control system

Electrical installation........................................Chapter 1 + 2

Original instructions

3004224-2014-09-03 VEX320-330_EXact2

EXHAUSTO A/S

Odensevej 76

DK-5550 Langeskov

Tel. +45 65 66 12 34

Fax +45 65 66 11 10

[email protected]

www.exhausto.dk

1. Connection diagram for supply voltage and connection box

1.1. Connection diagram .............................................................................................5

1.1.1. Connection diagram for supply voltage and connection box...........................6

1.1.2. Termination......................................................................................................7

1.2. Cable plan...............................................................................................................8

2. Installation of the VEX

2.1. Scope of installation..............................................................................................9

2.1.1. Connections in the connection box..................................................................9

2.2. Dimensioning and electrical installation...........................................................10

2.2.1. Installation requirements and recommendations...........................................10

Electrical wiring........................................................................................................10

2.3. VEX300C, electrical components.......................................................................12

2.3.1. VEX300C, components in connection box....................................................13

2.4. VEX330H, electrical components.......................................................................14

2.4.1. VEX330H, components in connection box....................................................15

2.5. EXact2 main board..............................................................................................16

2.5.1. Terminal board on EXact2 main board..........................................................16

2.5.2. Connecting shielded cable to MODBUS........................................................17

2.5.3. Service – connection of additional HMI control panel....................................18

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Symbols, terms and warnings

Prohibition symbol Failure to observe instructions marked with a prohibition symbol

may result in serious or fatal injury.

Danger symbol Failuretoobserveinstructionsmarkedwithadangersymbolmay

result in personal injury and/or damage to the unit.

Scope These instructions apply to the EXHAUSTO EXact2 control system. Please refer to

the product instructions regarding accessories and extra equipment.

The instructions must be fully observed to ensure personal safety and to protect the

equipment and ensure its correct operation. EXHAUSTO A/S accepts no liability for

accidents caused by equipment not used in accordance with the manual’s instruc-

tions and recommendations.

Warnings The work must be performed by an authorised electrician, in ac-

cordance with locally applicable regulations and legislation.

Warnings

Opening the unit Donotopentheservicedoorsbeforethesupplyvoltagehasbeen

disconnected at the isolation switch. The isolation switch is posi-

tioned on the side of the connection box on top of the unit.

ON OFF

Information plate The VEX unit information plate

shows:

1. VEX model

2. Production order no.

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NB Always have the production number ready when contacting EXHAUSTO A/

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1. Connection diagram for supply voltage and connection box

1.1 Connection diagram

Diagram The diagram on the following page illustrates the connection of the power supply,

HMIdisplay paneland variousaccessories thatcan beconnected atthe connection

box.

Diagram explana-

tion given on the fol-

lowing page Term Description Supplied by

-A1 Connection box EXHAUSTO

-A3 Connection box for electric heating coil (if fitted) EXHAUSTO

-F1 Distribution board fuses Customer

-Q1 Distribution board group switch Customer

-Q2 Connection box isolation switch EXHAUSTO

Further info See also "EXact2 main board" section for more information on components which

can be connected.

NB: Other parts, shown on the front page of the VEX instructions, are supplied by EX-

HAUSTO

Accessories See instructions for the relevant accessories:

●HCW heating coil - water

●HCE heating coil - electric

●MXCU, module for external cooling unit

3004224-2014-09-03 Connection diagram for supply voltage

and connection box

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1.1.1 Connection diagram for supply voltage and connection box

* not EXHAUSTO delivery

** 120 Ωresistance to termination

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and connection box

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1.1.2 Termination

The first and last devices on the bus must be terminated. The diagrams below show

two termination examples. See position of jumper JP2 on AHUC in section "Termi-

nal board on EXact2 Main board".

If Then See diagram no.

HMI is the only device on

the bus (bus connector

optional)

the jumper must be connected

to JP2, which applies a resist-

ance of 120 Ω

both buses are used the jumper must not be con-

nected 2

the bus connectors are

not used the jumper must be connected

toJP2asperdiagram1,which

applies a 120 Ωresistance

3004224-2014-09-03 Connection diagram for supply voltage

and connection box

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1.2 Cable plan

The cable plan below shows the accessories that can be connected in the connection box.

3004224-2014-09-03 Connection diagram for supply voltage

and connection box

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2. Installation of the VEX

2.1 Scope of installation

VEX unit The electrical installation for the VEX unit comprises the following connections:

Connection to VEX unit:

●Connection box

●HCE heating coil (electric) (if any)

●HCW heating coil (water) (if any)

●MXCU module for external cooling unit (if any)

2.1.1 Connections in the connection box

Wiring configura-

tions Wiring configurations for the terminal board in the connection box are shown in the

table below.

Wiring configurations See section

Supply voltage 2.2

HMI control panel via modbus 1

Modbus components via modbus 1

on termination and instructions for the

component in question

Control box for heating coil (water

heating coil), MHCW module, via

modbus

on termination and instructions for water

heating coil HCW

Control box for heating coil (electric

heating coil), MHCE2 module, via

modbus

on termination and instructions for elec-

tric heating coil HCE

Control system for external cooling

unit MXCU 1

onterminationandinstructionsforMXCU

module

External start* below

Closing damper in exhaust air LSA/

LSAR 1

Closing damper in outdoor air LSF/

LSFR 1

Fire and AUX IN* 1

and below

* External start, Fire

and AUX IN Note following with regard to jumpers on EXact2 main board.

If Then

Fire is used the jumper between terminals 20 and 21 must be removed

AUX IN used the jumper between terminals 22 and 23 must be removed

EXT start is used the jumper between terminals 24 and 25 must be removed

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2.2 Dimensioning and electrical installation

●The supply cable must be dimensioned and installed in ac-

cordance with applicable rules and regulations.

●The earth terminal (PE) must always be connected.

Diagram The supply voltage must be connected to the isolation switch as shown in the dia-

gram in section 1.

2.2.1 Installation requirements and recommendations

Fuses The fuses must be suitable for:

●Short-circuit protection of the unit

●Short-circuit protection of supply cable

●Overload protection of supply cable

Max. rating Maximum fuse rating is 13 A (gG/gL).

Power supply cable When dimensioning the supply cable, the conditions at the installation location, in-

cluding temperature and cable duct layout, must be taken into consideration.

Earth leak circuit

breaker

●The unit must be protected against indirect contact.

If current earth leak circuit breakers are fitted in the installation, they must be

of a type that meets the following requirements:

●PFI type A breaker that breaks the circuit when a vagrant

current with DC content (pulsating DC) in accordance with

EN 61008.

●The circuit breakers must be marked with the following sym-

bol:

●Cutout time must be max. 0.3 s.

When there is cur-

rent leakage A leak current of up to 100 mA can be generated.

Electrical wiring

VEX type Motor Voltage Dimensioned power con-

sumption

VEX320C/330C/330H -1 1 x 230 V + N + PE 3.1 A

VEX320C/330C/330H -2 1 x 230 V + N + PE 5.3 A

Short-circuit current Maximum short circuit current (lcu), in accordance with EN60947.2 is 10 kA.

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