Auto-Zone Control Systems Auto-Zone Plus Systems Installation & Operation (Version 03A) - Manual (Page 45)

Auto-Zone Plus
Section 2
Design Guide 2-13
The Expansion board(s) plugs into the OE352 Expansion Base Board and the Base Board
connects to the Zone Manager via a modular cable. There are jumpers located on the base
board that must be set depending on the board and application it is being used for. Refer
to Figure 2-8 for wiring and jumper settings for the various configurations available.
Warning:
Use extreme care not to damage any of the electronic components
while mounting the backplate. Mark the holes then remove the Zone
Manager before drilling. Do not allow metal shavings to
fall onto the circuit boards.
The Zone Manager requires the following electrical connections:
18 gauge minimum unless otherwise noted.
-24VAC Supply Voltage........................................................................... 2 Conductors
-Communications Loop .................. (18 ga. min.) 2 conductor twisted pair with shield
WattMaster wire, Belden #82760 wire or equivalent
-Supply Air Temperature Sensor ........................................ (24 ga. min.) 2 Conductors
-Return Air Temperature Sensor......................................... (24 ga. min.) 2 Conductors
-Outside Air Temperature Sensor ....................................... (24 ga. min.) 2 Conductors
-Supply Static Pressure Sensor ........................................... (24 ga. min.) 3 Conductors
-Bypass Damper.................................................4 Conductors, twisted pair with shield
-VFD ..................................................................2 Conductors, twisted pair with shield
-HVAC Unit Control Wiring.....................................................................R - Common
G - Fan
Y1 - Cool 1
Y2 - Cool 2
W1 - Heat 1
W2 - Heat 2
The Following Outputs Require The OE352 Expansion Base Board and 1 or more
of the following expansion boards:
OE357 4 Relay Expansion Board -Y3 through Y6
OE357 4 Relay Expansion Board - W3 through W6
OE355 4 Analog Output Expansion Board – Modulating Cooling
OE355 4 Analog Output Expansion Board – Modulating Heating
Tip:
After making all electrical connections, it is advised to unplug all terminal
blocks on the Zone Manager until you are ready to begin the checkout procedure.
This may help to prevent damage if wiring errors occur elsewhere in the system
during installation or start-up.