Figure 4-4: local loop wiring – Auto-Zone Control Systems Auto-Zone Plus Systems Installation & Operation (Version 03A) User Manual

Page 158

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Section 4

Auto-Zone Plus

4-8

Start-Up and Troubleshooting

Connect Zone Controllers, CV Units

And The System Manager To This Loop.

Zone Controllers Should Be Connected

To The Loop Coming From The Rooftop Unit

Which Supplies Air For That Controller

HVAC Unit #1

Zone Manager

T

R

SHLD

T

R

SHLD

Local Loop #1

Rs-485 Comm Loop

RELAY

OUTPUT

COM

1-3

OUT

OUT

1
2

COM

4-5

OUT

OUT
OUT

3
4

5

24VAC

GND

PWR

COMM

T

SHLD

LD4

REC.

12V
AIN

1
2
3

4
5

GND
GND

AOUT

AIN

AIN
AIN
AIN

4-5

OUT

COMM

TEST

32K

8K

RAM

EPROM

ADDRESS ADD

PRESSURE

SENSOR

485

COMM

R

YS101564

EW

DO

G

0-

5

VD

C

0-

1

VD

C

From Other

Zone Managers

And Commlink IV

Network

Loop

To Other

Zone Controllers

And

Constant Volume

Units

Local

Loop

Zone Controller

Zone Controller

Constant Volume Unit

Addressing Starts At 18 And Goes To 30

For Constant Volume Units

& Add-On Devices

Addressing Starts At 1 And Ends At 16

For Zone Controllers


Figure 4-4:

Local Loop Wiring

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