Schneider Electric SEZ7656R1045B, SEZ7656H1045B Installation Instructions

SEZ7656R1045B / SEZ7656H1045B

Installation Guide for BACnet™ MS-TP RTU / HP
Room Controllers

For Commercial Zoning Systems

CONTENTS

Installation 2

Location 2
Installation 2

BACnet™ System Overview 3
Terminal, Identification and Function 4

Wiring 4

Screw terminal arrangement and wiring 4

Typical Applications 5

Main outputs wiring 5

Configuring and Status Display Instructions 7
User interface 9

Schneider Electric | II-SE700 0-BNE TRTU-A 4.EN.12.2015.v2 December 2015

INSTALLATION

Remove security screw on bottom of cover.

•

Open unit by pulling on bottom side of Room Controller (Figure 1).

• Remove wiring terminals from sticker.

• Read FCC ID and IC label installed in the cover.

Location

1. Should not be installed on outside wall.

2. Must be installed away from any direct heat source.

3. Should not be installed near air discharge grill.

4. Should not be affected by direct sun radiation.

5. Nothing should restrict vertical air circulation to Room Controller.

Installation

1. Swing open the Room Controller PCB to the left by pressing PCB locking
tabs (Figure 2).

2. Pull out cables 6” out from wall.
Ensure wall surface is flat and clean.

4. Insert cable in central hole of base.

5. Align base and mark location of two mounting holes on the wall ensuring
proper side of base up.

6. Install anchors in wall.

7. Insert screws in mounting holes on each side of base (Figure 2).

8. Gently swing back circuit board on base and push until the tabs lock.

9. Strip each wire 1/4 inch from end.

10. Insert each wire according to wiring chart (page 4).

11. Gently push excess wiring back into hole (Figure 3).

12. Re-Install wiring terminals in their correct locations (Figure 3).

13. Re-install cover (top side first) and gently push extra wire length back into
hole in wall.

14. Install security screw.

2

Figure-1 Ope ning the Cover

•

When replacing an existing Room Controller, label the wires
before removal of the Room Controller.

•

Electronic controls are static sensitive devices. Discharge
yourself properly before manipulating and installing the Room
Controller.

•

A short circuit or improper wiring may permanently damage the
Room Controller or the equipment.

•

All SEZ7000 series Room Controllers are designed for use
as operating controls only and are not safety devices. These
instruments have undergone rigorous tests and verification
prior to shipping to ensure proper and reliable operation in the
field. Whenever a control failure could lead to personal injury
and or loss of property, it becomes the responsibility of the user
or installer or electrical system designer to incorporate safety
devices (such as relays, flow switch, thermal protections) and
or an alarm system to protect the entire system against such
catastrophic failures. Tampering with the devices or unintended
application of the devices will result in a void of warranty.

Figure-2 Op ening the PCB

Figure-3 Terminal Block Reinstall

Schneider Electric | II-SE700 0-BNE TRTU-A 4.EN.12.2015.v2 December 2015

BACNET™ SYSTEM OVERVIEW

Schneider Electric SEZ7260X5x45B Zone controllers are used in conjunction with the SEZ7656x1045B
roof top controllers. Combined, they are designed for operating typical; single or multistage RTU’s and
their associated local zones. For example, a typical job layout system may feature 3 RTU controllers and
a total of 31 zones. This would bring to total number of nodes (individual Com addresses) to 34. RTU 1
would have 10 zones under its command, RTU 2 would have 10 zones under its command and RTU 3
would have 11 zones under its command.

3

SEZ7656R1045B

Typical BACnet™ Zoning System Installation