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Exhausto VEX300 Series Electrical Installation Manual

Air handlers with exact2 control system
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3005999-2020-10-20
Electrical installation guide
VEX310T-320T-330T-340T-350T
EXact2 control system
Electrical installation........................................ Chapter 2 + 3
EXHAUSTO A/S
Odensevej 76
DK-5550 Langeskov
ON
Tel. +45 65 66 12 34
Fax: +45 65 66 11 10
exhausto@exhausto.dk
www.exhausto.dk
VEX300T_EXact2
Original instructions

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Summary of Contents for Exhausto VEX300 Series

  • Page 1 VEX300T_EXact2 3005999-2020-10-20 Electrical installation guide VEX310T-320T-330T-340T-350T EXact2 control system Electrical installation........Chapter 2 + 3 Original instructions EXHAUSTO A/S Tel. +45 65 66 12 34 Odensevej 76 Fax: +45 65 66 11 10 DK-5550 Langeskov exhausto@exhausto.dk www.exhausto.dk...

  • Page 2: Table Of Contents

    3005999-2020-10-20 Symbols, concepts and warnings Symbols, terms and warnings................3 1. Connection in automatic switchboard 1.1. Explanation electrical diagrams................4 1.1.1. Designations used and key to wiring diagram..........4 1.2. Electrical diagrams....................5 1.2.1. Connection diagram - 1-phase.................5 1.2.2. Connection diagram - 3-phase - Electric heating surface........ 6 1.2.3.

  • Page 3: Symbols, Concepts And Warnings

    The instructions must be fully observed to ensure personal safety and the safety of others, and to protect equipment and ensure the correct operation of the VEX unit. EXHAUSTO A/S accepts no liability for accidents caused by a failure to use the product in accordance with the manual’s instructions and specifications.

  • Page 4: Explanation Electrical Diagrams

    1.1.1 Designations used and key to wiring diagram Designation Supplied by Control system panel EXHAUSTO VEX unit EXHAUSTO Connection box for heating coil/cooling unit EXHAUSTO Distribution board fuses...

  • Page 5: Electrical Diagrams

    Connection in automatic switchboard 3005999-2020-10-20 1.2 Electrical diagrams 1.2.1 Connection diagram - 1-phase * Not EXHAUSTO delivery ** 120 Ω resistance for end termination *** Crown sleeve for continuation of 24 VDC **** Only if HW (water) ***** Only if MCOCW / MXHP...

  • Page 6: Connection Diagram - 3-Phase - Electric Heating Surface

    Connection in automatic switchboard 3005999-2020-10-20 1.2.2 Connection diagram - 3-phase - Electric heating surface * Not EXHAUSTO delivery ** 120 Ω resistance for end termination *** -F1 Automatic fuse. Only by: ● VEX330T HE2 10.41 kW ● VEX340T HE2 14.96 kW ●...

  • Page 7: Termination

    Connection in automatic switchboard 3005999-2020-10-20 1.2.3 Termination The first and last device on the bus must be terminated. The diagrams below show two termination examples. See position of jumper JP2 on EXact2 Main Board in section “Terminal board on EXact2 Main Board”. then See diagram no.

  • Page 8: Electrical Diagrams - Cable Plan

    Connection in automatic switchboard 3005999-2020-10-20 1.3 Electrical diagrams - Cable plan The cable plan below shows the accessories that can be connected to the control system panel. 1.4 Internal cable and wiring 1.4.1 Wiring diagrams The following wiring diagrams show internal connections 1.4.2 Designation and key to wiring diagram Accessories are a direct customer choice, and the options may be generated from several factors.
  • Page 9 Connection in automatic switchboard 3005999-2020-10-20 Designation Standard Accesso- Option ries Control system panel VEX unit -B20 Automatic overheating switch 50°C outdoors -B21 Manual overheating switch 80°C in electric heating coil electric heating coil (HE1/ HE2) in supply air chamber Control fuse EXact2 AHUC PCB EMC filter Passive motor filter...
  • Page 10 Connection in automatic switchboard 3005999-2020-10-20 Designation Standard Accesso- Option ries □ Terminal row 2,5 10/28...

  • Page 11: Internal Connections Vex310T - Single Phase

    Connection in automatic switchboard 3005999-2020-10-20 1.4.3 Internal connections VEX310T - single phase *Only for HW (water) 11/28...

  • Page 12: Internal Connections Vex310T - 3-Phase

    Connection in automatic switchboard 3005999-2020-10-20 1.4.4 Internal connections VEX310T - 3-phase 12/28...

  • Page 13: Internal Connections Vex320T-350T - Single Phase

    Connection in automatic switchboard 3005999-2020-10-20 1.4.5 Internal connections VEX320T-350T - single phase *Only for HW (water) 13/28...

  • Page 14: Internal Connections Vex320-340T - 3-Phase Without Control Fuse

    Connection in automatic switchboard 3005999-2020-10-20 1.4.6 Internal connections VEX320-340T - 3-phase without control fuse 14/28...

  • Page 15: Internal Connections Vex330-350T - 3-Phase With Control Fuse

    Connection in automatic switchboard 3005999-2020-10-20 1.4.7 Internal connections VEX330-350T - 3-phase with control fuse 15/28...

  • Page 16: Internal Wiring And Hoses

    Connection in automatic switchboard 3005999-2020-10-20 1.4.8 Internal wiring and hoses * Set termination to ON (DIP switch 8) on the last of up to three MPT's. The number of configured MPT's may be from one to three (-P1, -P2 and -P3) 16/28...

  • Page 17: Installation Of The Vex Unit

    Installation of the VEX unit 3005999-2020-10-20 2. Installation of the VEX unit 2.1 Scope of installation 2.1.1 Connections in the control system panel See following table for possible connections to the terminal block on the EXact2 cir- cuit board. Possible connections See section Supply voltage 2.2 Dimensioning and installation...
  • Page 18 Installation of the VEX unit 3005999-2020-10-20 The inclusion of a built-in control fuse depends on the size of the VEX unit and the size of the VEX unit’s internal electric heating coils (HE1/HE2). See the overview below to see when the VEX unit has a built-in control fuse. ●...

  • Page 19: Power Of Electric Heating Coil In Vex300T

    Installation of the VEX unit 3005999-2020-10-20 ● PFI type A breaker in accordance with EN 61008 that breaks the circuit on registering a vagrant current with DC content (pulsating DC) ● The RCCBs must be marked with the following symbol: ●...
  • Page 20 Installation of the VEX unit 3005999-2020-10-20 With HW or CW coil (supply air) Supply voltage Max. phase current [A] VEX size (nominal) Composite Aluminium 310T 1x230V+N+PE ~ 50/60Hz 320T 1x230V+N+PE ~ 50/60Hz 330T 1x230V+N+PE ~ 50/60Hz 340T 1x230V+N+PE ~ 50/60Hz 350T 1x230V+N+PE ~ 50/60Hz 14.3...

  • Page 21: Isolation Switch, Internal In Control System Panel

    Installation of the VEX unit 3005999-2020-10-20 Circulation pump If the VEX unit is equipped with an internal HW coil, the circulation pump can be connected to terminal block -X1 (terminals 12 and 14). The circulation pump may not draw more than 2.0 A, and its cable must be dimensioned in accordance with the VEX unit’s fuse.

  • Page 22: Electrical Components

    Installation of the VEX unit 3005999-2020-10-20 2.3 Electrical components 2.3.1 Control system panel The illustration below shows the electrical components’ positioning in the control sys- tem panel: -K23 -K12 -K21 or -K24 -K22 Alternativ -K25 Component list Code Electrical component Qty.

  • Page 23: Terminal Block On The Exact2 Printed Circuit Board

    Installation of the VEX unit 3005999-2020-10-20 2.3.2 Terminal block on the EXact2 printed circuit board The drawing and diagram below show which components (standard + accessories) can be connected to the terminal block terminal block. Designation Terminal block no. Connection of the following components 1 - 4 Bus for external topics 5 - 8...
  • Page 24 Installation of the VEX unit 3005999-2020-10-20 Designation Terminal block no. Connection of the following components AUX OUT 35 - 36 Fire alarm for controlling smoke evacuation damper or fire gas fan. Light/CP 37 - 38 Light / circulation pump. Light is not a possible option on the VEX350T, but if VEX units are equipped with HW drums, the circula- tion pump (CP function) is activated.

  • Page 25: Connecting Shielded Cable To Modbus

    Installation of the VEX unit 3005999-2020-10-20 2.3.3 Connecting shielded cable to MODBUS Cable type □ MODBUS requires shielded cable of type 2 x 2 x 0.25 twinned pair conductors. Connection Wires and screen must be connected as shown in the table below Wires Step Action...
  • Page 26 3005999-2020-10-20 26/28...
  • Page 27 3005999-2020-10-20 27/28...

This manual is also suitable for:

Vex310tVex320tVex330tVex340tVex350t

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