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3004750-2014-09-04
Electrical installation guide
VEX340 with EXact2 control system
ON
Electrical installation........................................Chapter 1 + 2
EXHAUSTO A/S
Odensevej 76
DK-5550 Langeskov
Tel. +45 65 66 12 34
Fax +45 65 66 11 10
exhausto@exhausto.dk
www.exhausto.dk
VEX340 EXact2
Original instructions
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Table of Contents
Related Manuals for Exhausto VEX340
Summary of Contents for Exhausto VEX340
- Page 1 VEX340 EXact2 3004750-2014-09-04 Electrical installation guide VEX340 with EXact2 control system Electrical installation........Chapter 1 + 2 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...
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Page 2: Table Of Contents
3004750-2014-09-04 1. Connection diagram for supply voltage and connection box 1.1. Key to connection diagram ..................5 1.2. Connection diagram....................6 1.2.1. Termination......................7 1.3. Cable plan.......................8 2. Installation of the VEX 2.1. Installation......................9 2.1.1. Connections in the connection box..............9 2.2. Dimensioning and electrical installation............10 2.2.1. - Page 3 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.
- Page 4 3004750-2014-09-04 Information plate The VEX unit information plate shows: ● VEX model type (1) ● Unit production no. (2) Have the production number ready at all times when contacting EXHAUSTO A/S. 4/16...
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Page 5: Connection Diagram For Supply Voltage And Connection Box
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 VEX340-350-360 ● HCE heating coil - electric ● CCW cooling coil ● MXCU, module for external cooling unit 5/16... -
Page 6: Connection Diagram
Connection diagram for supply voltage 3004750-2014-09-04 and connection box 1.2 Connection diagram * Not supplied by EXHAUSTO ** 120 Ω terminating resistor *** Terminal block for continuation of 24 VDC 6/16... -
Page 7: Termination
Connection diagram for supply voltage 3004750-2014-09-04 and connection box **** Only if IHCW 1.2.1 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". -
Page 8: Cable Plan
Connection diagram for supply voltage 3004750-2014-09-04 and connection box 1.3 Cable plan The cable plan below shows the accessories that can be connected in the connection box. 8/16... -
Page 9: Installation Of The Vex
Installation of the VEX 3004750-2014-09-04 2. Installation of the VEX 2.1 Installation VEX unit The electrical installation for the air handling unit comprises the following connec- tions: Connection to VEX unit: ● Connection box ● Optional electrical heating coil HCE ●... -
Page 10: Dimensioning And Electrical Installation
A leak current of up to 100 mA can be generated. Electrical connec- tions VEX type Voltage Dimensioned power consumption (max. phase current) VEX340 1 x 230 V+N+PE 12.5 A Short-circuit current Maximum short circuit current (lcu), in accordance with EN60947.2 is 10 kA. 10/16... - Page 11 Installation of the VEX 3004750-2014-09-04 Accessories Accessory types MHCW, MCCW and MXCU do not require separate supply cables and can be directly connected to the VEX control system box. Short-circuit current Maximum short circuit current (lcu), in accordance with EN60947.2 is 10 kA. Accessories Accessories of type MHCW, MHCE2 and MXCU must be connected to the external bus of the VEX and be separately powered.
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Page 12: Electrical Components
Installation of the VEX 3004750-2014-09-04 2.3 Electrical components Positioning of elec- trical components 1. Connection box 2. Motor control ● Main fuse ● 24 V power supply ● Control fuses ● Isolation switch 12/16... -
Page 13: Terminal Board On Exact2 Main Board
Installation of the VEX 3004750-2014-09-04 2.3.1 Terminal board on EXact2 main board The layout drawing below gives an overview of components (standard + accessory) that can be connected to the terminal blocks. Component Terminal board Description connection 1 - 4 Bus for external parts 5 - 8 Bus for external parts... -
Page 14: Connecting Shielded Cable To Modbus
Installation of the VEX 3004750-2014-09-04 Component Terminal board Description connection Light/CP 37 - 38 Light or circulation pump (if IHCW has been selected, the CP function is activated) For service use DI SPARE TIMERBUTTON2/TIMERBUTTONEU2 AI SPARE CO2B/RHB 24 V supply for MLON/MTCP Service HMI Service HMI Plug for connecting extra HMI panel, see section "Servicing - connection of... -
Page 15: Service - Connection Of Additional Hmi Control Panel
Installation of the VEX 3004750-2014-09-04 Connection Wires and screen must be connected as shown in the table below Wires Action Conductors Strip minimum amount of insulation from con- Symbol: ductors and ensure they are not damaged/ Twinned snapped pair con- Twist 0V conductor and 24V conductor togeth- ductors Twist conductor A and conductor B together...
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