Auto-Zone Control Systems EZ-Zone to Auto-Zone Upgrade Guide (Version 01C) - Manual (Page 10)

EZ Zone/Auto-Zone
10 Upgrade
Example #2:
Your project has multiple EZ Zone Master Panels and
their associated Zone Controllers. This upgrade will
convert this to an Auto-Zone Plus System.
To upgrade your existing EZ Zone System to the Auto-
Zone Plus System the following procedures will be
required.
Warning: All removal and installation procedures
must be done with the power to the controllers
turned off. Failure to do so can cause severe dam-
age to the controller boards.
1) All power and input/output wiring will need to be
disconnected from the existing Master Controller board.
Disconnect the keypad & display cable from the board
by unplugging its connector from the board and the dis-
play on the existing enclosure cover.
2) The new Return Air Sensor should be installed in
the return air stream in a location upstream of the point
that the bypass duct connects to the return duct.
3) Install the new Outdoor Air Sensor in a location on
the exterior of the building that provides shade and
protection from the weather. Only one OA sensor is
required for the entire system. See the mounting instruc-
tions included with the sensor for detailed mounting
instructions.
4) Connect the CommLink to the network communica-
tions loop and wire in 24VAC power (See Figure 13 on
page 25).
5) Remove the existing EZ Zone Master Controller
Board from the EZ Zone enclosure. This will require
the removal of 4 screws securing the board to the en-
closure base.
6) Install the new Zone Manager board onto the exist-
ing enclosure base. The MiniLink should then be
mounted to the Zone Manager board using the stand-
offs and screws included with the MiniLink. The new
Zone Manager board installation requires 6 plastic
standoffs be inserted between the back of the new board
and the existing standoffs. Secure the board to 4 of the
threaded standoffs (one in each corner of the board)
with the screws that were included with the new Zone
Manager board.
7) Connect the input, output and power wiring per the
Auto-Zone Plus wiring diagram (See Figure 3 on page
18). Connect the new 3 Connector Ribbon Cable key-
pad display connector to the existing EZ Zone enclo-
sure cover and to the new Auto-Zone Zone Manager
board (See Figure 18 on page 30). Secure the existing
enclosure cover to the enclosure base with the existing
screws.
8) Remove and replace each EPROM on all the exist-
ing EZ-Zone Zone Controllers. See Figures 16 & 17 on
pages 28 & 29 for detailed EPROM Replacement in-
formation.
To Upgrade To The Auto-Zone Plus System Order the Following :
(X) (OE753) EZ Zone to Auto-Zone Plus Upgrade Kit (One Required Per Existing Master Controller)
(Includes: Zone Manager Board w/ Mounting Screws, Plastic Standoff Kit for Zone Manager,
MiniLink w/ Mounting Hardware, Return Air Sensor, 3 Way Display/Keypad Connector cable,
Upgrade Label, Installation Instructions).
(1) (OE361-04-CLMA) CommLink II Kit (Includes: Cables, Power Supply, Installation Instructions)
(1) (OE250) Outside Air Sensor (Only One Required For Entire System)
(X) (OE752) EPROM (Replaces EZ Zone, Zone Controller EPROM) (One Required Per Controller)
(1) (OE392-01-AZSYSM) System Manager (Not Required if Using Optional Computer)
Note: When ordering be sure to specify Fahrenheit or Celsius operation for your system
For optional components list and information see pages 14 & 15 of this manual.