Auto-Zone Control Systems Auto-Zone Plus Systems Installation & Operation (Version 03A) - Manual (Page 155)

Auto-Zone Plus Section 4
Start-Up and Troubleshooting 4-5
CommLink IV
Multiple Loop
Network Loop
Terminal Block
Network Loop
Terminal Block
Local Loop
Terminal Block
Local Loop #1
Local Loop #2
Local Loop
Terminal Block
Network Loop
To Other Zone Managers
RS-485 Network
Communication
Loop
Address Set To 1
Address Set To 2
Computer
(Optional)
HVAC Unit #1
Zone
Manager
To HVAC Unit #1
Zone Controllers
And Constant Volume
Units If Used
To HVAC Unit #2
Zone Controllers
And Constant Volume
Units If Used
The Address Is Used To Describe
Which Loop We Are Referring To
HVAC Unit #2
Zone
Manager
Caution: Connect Only
Zone Managers & CommLink
To This Loop
Figure 4-1: Communications Loop Overview
Each Zone Manager (HVAC unit) has a separate Local communications loop for
associated Zone Controllers and any Constant Volume units used.
Each Local loop must have a unique cluster address. It is typical for each Local loop to
have a sequential cluster address (e.g. 1, 2, 3, etc.).
Note:
No controllers should be connected to the Network communications loop.
The Network communications loop should only be connected to the MiniLink’s Network
terminals on the Zone Manager(s), and the CommLink IV.