Installation Instructions

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Table Of Contents

Document No. 540-1020

September 16, 2015

TEC Constant Volume Controller

Item No. 540-1020 Rev. BA Page 1 of 5

homisa

Generic Controller I/O Layout. See

Wiring Diagram

for application specific details.

Control Applications

2030, 2032, 2033

Product Description

These instructions explain how to field install or

replace a TEC Constant Volume Controller.

Product Numbers

TEC Constant Volume Controller 540-103N

TEC Constant Volume Controller

with Autozero Module

540-104N

Shipping carton includes a controller assembly, a

mounting rail, and two self-tapping/drilling screws.

CAUTION

Keep the unit in its static-proof bag

until installation.

Otherwise, you run the risk of

damage to the printed circuit board

from electrostatic discharge.

Accessories

Low cost temporary temperature

sensor, 10K Ω

thermistor with RJ11 (1”

long), that enables space control if the

permanent room or duct sensor is not

installed (pack of 25).

540-658P25

Duct Temperature Sensor, NTC 100K

Ω Type 2, 3" Probe for Commissioning

only

QAM1035.008P50

Small Equipment Controller

Enclosure (Short board

controllers.)

540-155

Summary of content (5 pages)

PAGE 1
Installation Instructions Document No. 540-1020 September 16, 2015 TEC Constant Volume Controller homisa Generic Controller I/O Layout. See Wiring Diagram for application specific details. CAUTION Control Applications Keep the unit in its static-proof bag until installation. Otherwise, you run the risk of damage to the printed circuit board from electrostatic discharge. 2030, 2032, 2033 Product Description These instructions explain how to field install or replace a TEC Constant Volume Controller.
PAGE 2
Document No. 540-1020 Installation Instructions September 16, 2015 Large Equipment Controllers Enclosure (Long board and ATEC controllers.) Prerequisites 550-002 RJ11 (6 wire) RTS cable in 25 588-100 series ft, 50 ft, or 100 ft (7.6 m, 15.2 m, 30.48 m) Autozero Module (included with 540-104N) 540-380 Warning/Caution Notation WARNING Personal injury/loss of life may occur if you do not follow the procedures as specified.
PAGE 3
Document No. 540-1020 Installation Instructions September 16, 2015 4. Connect the FLN. CAUTION It is very important that the neutral that supplies the TEC must be earth grounded at the source of the 24 Vac power. Possible erratic equipment operation or damage if neutral is not grounded. The installation is complete. 5. Connect the point wiring (see Wiring Diagrams). 6. Plug the room temperature sensor cable into the RTS port. 7. Connect the power trunk.
PAGE 4
Document No. 540-1020 Installation Instructions September 16, 2015 Application 2030 – Constant Volume Cooling Only. Application 2032 – Constant Volume with Electric Reheat. Page 4 of 5 Siemens Industry, Inc.
PAGE 5
Document No. 540-1020 Installation Instructions September 16, 2015 Application 2033 – Constant Volume with Hot Water Reheat. Information in this document is based on specifications believed correct at the time of publication. The right is reserved to make changes as design improvements are introduced. Product or company names mentioned herein may be the trademarks of their respective owners. © 2015 Siemens Industry, Inc. Siemens Industry, Inc.