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HVAC Cascade Option Module

USER GUIDE

DECLARATION

All rights reserved. No part of this User Guide may be reproduced 

or transmitted in any form or by any means, electrical or mechanical 

including photocopying, recording or by any information storage 

or retrieval system without permission in writing from the publisher. 

Copyright Bardac Drives © 2020

The manufacturer accepts no liability for any consequences 

resulting from inappropriate, negligent or incorrect installation. 

The contents of this User Guide are believed to be correct at the 

time of printing. In the interests of a commitment to a policy of 

continuous improvement, the manufacturer reserves the right to 

change the specification of the product or its performance or the 

contents of the User Guide without notice.

SAFETY

This  option  is  specifically  designed  to  be  used  with  the  HVAC 

variable speed drive product and is intended for professional 

incorporation into complete equipment or systems. If installed 

incorrectly it may present a safety hazard. The HVAC drive uses 

high voltages and currents, carries a high level of stored electrical 

energy, and is used to control mechanical plant that may cause 

injury. Close attention is required to system design and electrical 

installation to avoid hazards in either normal operation or in the 

event of equipment malfunction.

Please read the SAFETY NOTICE carefully, and all Warning and 

Caution boxes elsewhere.

WARRANTY

All Bardac Drives products carry a 2-year warranty, valid from the 

date of manufacture. Complete warranty info available online. 

Bardac Corporation

Worldwide Industrial Control Solutions

40 Log Canoe Circle, Stevensville, MD 21666
Phone: (410) 604-3400 | Fax: (410) 604-3500   
[email protected] | bardac.com | driveweb.com

SAFETY NOTICES

WARNING

 is given where there is a hazard that could lead to 

injury or death of personnel.

CAUTION

 is given where there is a hazard that could lead to 

damage to equipment.

It is the responsibility of the installer to ensure that the equipment 

or system into which the product is incorporated complies with 

the EMC legislation of the country of use. Within the European 

Union, equipment into which this product is incorporated must 

comply with 89/336/EEC, Electromagnetic Compatibility.

WARNING

 Within the European Union, all machinery in which 

this product is used must comply with the Directive 89/392/EEC, 

Safety of Machinery. In particular, the equipment should comply 

with EN60204-1.

CAUTION

•  Store the option module in its box until required. It should 

be stored in a clean and dry environment. Temperature range 

–40ºF to +140ºF. 

•  Install the option module into the drive by inserting 

the module into the option module port, as shown in 

the mechanical installation section. Do not use undue 

force in inserting the option module into the port. 

WARNING

•  Drives and the option module should be installed only by 

qualified electrical persons and in accordance with local and 

national regulations and codes of practice.

• 

Electric shock hazard!

 Disconnect and ISOLATE the drive 

before attempting any work on it. High voltages are present 

at the terminals and within the drive for up to 10 minutes 

after disconnection of the electrical supply.

•  Where the electrical supply to the drive is through a plug and 

socket connector, do not disconnect until 10 minutes have 

elapsed after turning off the supply.

STANDARDS CONFORMITY

A  drive  fitted  with  this  option  module  complies  with  the 

following standards:

 

•  CE-marked for Low Voltage Directive.

•  IEC  664-1  Insulation  Coordination  within  Low  Voltage 

Systems.

•  UL 840 Insulation Coordination for electrical equipment.

•  EN50081-2 EMC Generic Emissions Standard, Industrial 

Level.

•  EN50082-2 EMC Generic Immunity Standard, Industrial Level.

•  Enclosure ingress protection, EN60529 IP00, NEMA 250.

•  Flammability rating according to UL 94.

SPECIFICATIONS

Model Number:

 

  T2-CASCD-IN

Compatibility:

   

 

V3 Series (HVAC)

    P2 

Series* 

    *limited 

functionality

Max Relay Switching Voltage:

 

250V AC / 30V DC

Max Relay Switching Current:

 

6A (250V AC) / 5A (30V DC)

Environmental:

   

 

14ºF  . . .  +122ºF

Conformity:

 

 

 

IP20, UL94V-0

Terminal Torque:

  

 

0.5Nm (4.5 Ib-in)

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