Auto-Zone Control Systems Auto-Zone Plus Systems Installation & Operation (Version 03A) - Manual (Page 44)

Section 2
Auto-Zone Plus
2-12 Design Guide
Expansion Board Wiring
The OE352 Expansion Base Board can be populated with (1) or (2) OE357 Relay Output
Expansion Boards or (1) OE357 Relay Output Expansion Board and (1) OE355 4 Analog
Output Expansion Board or (1) OE355 4 Analog Output Expansion Board by itself. The
number and type of expansion board(s) required depend on your HVAC unit
configuration and requirements. See Figure 2-8 for details.
Expansion Board Wiring For HVAC Units With
Modulating Chilled Water Cooling &
Heat
Requiring More
Than 2 Stages Of ing
Expansion Board Wiring For HVAC Units Requiring More
Than 2 Stages of Heating & Also Requiring More
Than 2 Stages Of Cooling
Cooling Stage 3
Cooling Stage 4
Cooling Stage 5
Cooling Stage 6
4RLY IO BD. YS101790
24
V A C
24
V A C
GN
D GN
D
4 AOUT MOD I/O BD 4 AOUT MOD I/O BD YS101786 YS101786
AOUT4 AOUT4
AOUT3 AOUT3
AOUT2 AOUT2
AOUT1 AOUT1
GND GND
24 VAC 24 VAC
GND GND
Connect
To 24 VAC
Transformer
Connect
To 24 VAC
Transformer
Connect
To Zone
Manager
Connect
To Zone
Manager
Jumpers
Must Be Set
As Shown
Jumpers
Must Be Set
As Shown
Jumpers
Must Be Set
As Shown
Jumpers
Must Be Set
As Shown
Modulating
Cooling
Device
Modulating
Cooling
Device
Modulating
Heating
Device
Heating
Heating Cooling
Cooling
OE352 Expansion Base Board
With OE355 4 Analog Output Board
(Optional)
Expansion Board Wiring For HVAC Units With
Modulating Hot Water Heating & Modulating
Chilled Water Cooling
Expansion Board Wiring For HVAC Units With
Modulating Hot Water Heating & Requiring More
Than 2 Stages Of Cooling
OE352 Expansion Base Board
With OE355 4 Analog Output &
OE357 4 Relay Expansion Board
(Optional)
Heating Stage 3
Cooling Stage 3
Heating Stage 3
Heating Stage 4
Cooling Stage 4
Heating Stage 4
Heating Stage 5
Cooling Stage 5
Heating Stage 5
Heating Stage 6
Cooling Stage 6
Heating Stage 6
4RLY IO BD.
4RLY IO BD.
4RLY IO BD. YS101790
YS101790
YS101790
24
V A C
24
V A C
GN
D GN
D
4 AOUT MOD I/O BD YS101786
AOUT4
AOUT3
AOUT2
AOUT1
GND
24 VAC 24 VAC
GND GND
Connect
To 24 VAC
Transformer
Connect
To 24 VAC
Transformer
Connect
To Zone
Manager
Connect
To Zone
Manager
OE352 Expansion Base Board
With (2) s OE357 4 Relay Expansion Board
(Optional)
OE352 Expansion Base Board
With OE355 4 Analog Output &
OE357 4 Relay Expansion Board
(Optional)
Modulating
Heating
Device
Figure 2-8
: Expansion Board Wiring and Jumper Settings