Orion OE335-26B-VCBX-A, Техническое руководство

Страница: 37 / 116

VCB-X Controller Field Technical Guide
INSTALLATION & WIRING
37
VCB-X EM1 Expansion Module Outputs
The VCB-X EM1 Expansion Module must be connected to 24
VAC as shown in the wiring diagram below. Please see
Table 1
for
correct VA requirements to use when sizing the transformer(s) used
for powering the expansion module.
Also, please note that when wiring the VCB-X EM1 Expansion
Module, its contacts must be wired as wet contacts (connected to
24 VAC).
VCB-X EM1 Expansion Module Output Wiring
Figure 23: VCB-X EM1 Expansion Module Output Wiring Diagram
NOTE:
ALL RELAY OUTPUTS ARE NORMALLY
OPEN AND RATED FOR 24 VAC POWER
ONLY - 1 AMP MAXIMUM LOAD
CONFIGURABLE RELAY OUTPUT #3
CONFIGURABLE RELAY OUTPUT #2
CONFIGURABLE RELAY OUTPUT #1
24 VAC ONLY
R1
R4
R5
R3
R2
HV
AC
U
N
IT
CO
NN
EC
T
ION
S
24 VAC POWER
RC
R
CONFIGURABLE RELAY OUTPUT #4
CONFIGURABLE RELAY OUTPUT #5
NOTE: BUILDING PRESSURE DAMPER
ACTUATOR OR BUILDING PRESSURE FAN
VFD CONTROL CAN BE USED, NOT BOTH
COM
BUILDING PRESSURE
RELIEF FAN VFD
+
CHILLED WATER VALVE ACTUATOR
2 +
Y1 3
COM 1
BUILDING PRESSURE DAMPER
ACTUATOR
2 +
Y1 3
COM 1
-
CONDENSER FAN ECM
MOTOR
+
VCB-X EM1
Expansion Module
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.
AOUT1
AOUT2
AOUT4
NOTE: RELAY CONTACTS R1-R5 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
24VAC
GND
Line Voltage
Size Transformer For
Correct Total Load.
VCB-X E 1 Module = 5 VA
M
16.) MOD COOL ENABLE
17.) MORNING WARM-UP /
18.) REHEAT
19.) EXHAUST FAN
20.) HEAT WHEEL
BUILDING PRESSURE
COM
CONDENSER 2 FAN VFD
+
GND
COOL-DOWN
CONDENSER 1
WATER VALVE ACTUATOR
2 +
Y1 3
COM 1
2 +
Y1 3
COM 1
COM
CONDENSER 1 FAN VFD
+
AOUT3
C
1
2
CONDENSER 2
WATER VALVE ACTUATOR
2 +
Y1 3
COM 1
2 +
Y1 3
COM 1
Revised 8/6/14