Zone
Zone
INSTALLATION & WIRING
VCB-X Controller Field Technical Guide
50
Figure 36: OE358-23E-12R-A – E-BUS 12-Relay Expansion Module Wiring
E-BUS 12-Relay Expansion Module
The E-BUS 12-Relay Expansion Module ( OE358-23E-12R-A)
provides for 12 Dry Contact Con
fi
gurable Relay Outputs. See
Figure
36
below for complete wiring details.
The E-BUS 12-Relay Expansion Module can be used in conjunction
with the VCB-X EM1 Expansion Module ( OE336-23-EM1-A) and
the VCB-X EM2 Expansion Module ( OE336-23-EM2-A). The
expansion modules can be used individually or together to provide
the required inputs and outputs for your speci
fi
c applications.
The expansion modules can be used individually or together to
provide the required inputs and outputs for your speci
fi
c applications.
12-Relay E-BUS Expansion Module Wiring
E-BUS 12-Relay
Expansion Module
Configurable Relay Output #9
Configurable Relay Output #1
Configurable Relay Output #5
RLY9
R1
R5
RLY10
R2
R6
RLY11
R3
R7
RLY12
R4
R8
Configurable Relay Output #10
Configurable Relay Output #2
Configurable Relay Output #6
Configurable Relay Output #11
Configurable Relay Output #3
Configurable Relay Output #7
Configurable Relay Output #12
Configurable Relay Output #4
Configurable Relay Output #8
EBC E-BUS Cable
Connect To VCB-X Controller
EBC E-BUS Cable
Connect To Next Expansion Board
(When Used)
24 VAC
GND
15 VA Minimum
Power Required
WARNING!!
Observe Polarity! All boards must be wired with GND-to-GND and 24VAC-to-24VAC. Failure to observe polarity will result in damage to
one or more of the boards. Expansion Modules must be wired in such a way that the expansion modules and the controller are always
powered together. Loss of power to the expansion module will cause the controller to become inoperative until power is restored to the
expansion module.
Note:
All Relay Outputs Are Normally Open
And Rated For 24 VAC Power Only.
1 Amp Maximum Load.
RLY9
RLY10
RLY11
RLY12
RLY-COM
MADE IN USA
RLY-COM
RLY-COM
RLY1
RLY2
RLY3
RLY4
RLY8
RLY7
RLY6
RLY5
24VAC
GND
EXPANSION BOARD
YS102324 REV 2
RELAY
24 V
A
C
GND
NOTE:
RELAY CONTACTS R1-R12 MAY BE CONFIGURED FOR:
1.) HEATING STAGES
2.) COOLING STAGES
4.) CONDENSER
5.) REVERSING VALVE
6.) HEAT PUMP COMPRESSOR
7.) PREHEAT
8.) AUX HEAT
10.) ALARM
11.) OVERRIDE
12.) OCCUPIED
13.) ECONOMIZER
14.) MOD HEAT ENABLE
15.) EMERGENCY HEAT
9.) LOW AMBIENT
3.) DIGITAL COMPRESSOR
16.) MOD COOL ENABLE
17.) MORNING WARM-UP /
18.) REHEAT
19.) EXHAUST FAN
20.) HEAT WHEEL
Note:
-
A Total Of 17 Relays Are Available By
Adding The Relay Expansion
Modules. All Expansion Module Relay
Outputs Are User Configurable.
RLY1
RLY2
RLY3
RLY4
COM
COM
RLY5
RLY6
RLY7
RLY8
COM
COOL-DOWN
Revised 4/11/14
