Orion System VCM-X Modular E-BUS - Manual (Page 41)

VCM-X Modular E-BUS Controller Technical Guide
INSTALLATION & WIRING
41
SIG
GND
+V
BK
RD
WH
SIG
GND
+V
BK
RD
WH
Head Pressure Transducers 3 - 4
0 - 667 PSI
(One Per Refrigerant Circuit)
OE370-23-HP2C2
Two Condenser Head Pressure II Module
OPTIONS Dip Switch Setting Not
Required When Connected To
VCM-X Controller.
+5V
SIG 2
GND
OP
T IO
N
S
ALARM
ANALOG
STAT
+5V
COMM
GND
SIG 4
GND
R1
R2
GND
RELAYS
ADDRESS
SIG 3
+5V
GND
+5V
SIG 1
R3
R4
Rc
AO1
AO2
PWM1-
PWM1+
PWM2-
PWM2+
PWR
Connect To Other
WattMaster-Approved
E-BUS Expansion Module(s) HSSC Cable
24 VAC Transformer
3 VA Minimum
Line Voltage
24 V
A
C
GND WARNING!! Observe Polarity! All
boards must be wired with GND-to-
GND and 24 VAC-to-24 VAC.
Failure to observe polarity could
result in damage to the boards.
NOTE:
NORMALLY OPEN AND
RATED FOR 24 VAC POWER
ONLY
ALL RELAY OUTPUTS
ARE
- 1 AMP MAXIMUM LOAD
Set ADDRESS Dip Switch 1 to ON
for Water Cooled or to OFF for Air
Cooled. Currently showing OFF for
Air Cooled.
Set ADDRESS Dip Switch 2 to ON
on 2nd Head Pressure Module.
Set ADDRESS Dip Switch 3 to ON to
disable Circuit B alarms when only
one Condenser is used. Currently
showing OFF.
Set ADDRESS Dip Switch 4 to OFF
to make reversing valve "ON to Heat
/ OFF to Cool.” Set to ON to make
reversing valve “ON to Cool / OFF to
Heat.” Currently showing OFF.
BIN 1
BIN 2
BIN 3
COM
COM
+
Condenser
Signal 4
COM
+
Condenser
Signal 3
CONDENSER 3 ENABLE
R1
HVAC UNIT CONNECTION
R3
CONDENSER 4 ENABLE
COMM
REVERSING VALVE 4 ENABLE
REVERSING VALVE 3 ENABLE
R4
R2
+24 Volts
Condenser Fan 3
ECM Motor
Duty Cycle
Condenser Fan 4
ECM Motor
YELLOW
BLUE +24 OUT
+24 Volts
Duty Cycle
YELLOW
BLUE +24 OUT
LED BLINK CODES
LED NAME STAT
BLINKS QTY. OF SENSORS INSTALLED
LED NAME ALARM
NO PROBLEMS 0
NO SENSORS DETECTED 1
HIGH HEAD PRESSURE DETECTED 2
LOW HEAD PRESSURE DETECTED 3
WattMaster Label
#LB102110-A
Rev.: 1A
E-BUS
Connector
E-BUS
Connector
+5V
SIG 1
GND
+5V
SIG 2
GND
+5V
SIG 3
GND
+5V
SIG 4
GND
+24
VAC GND
BIN 1
BIN 2
BIN 3
COM
HEAD
PRESSURE
TRANSDUCER #1
HEAD
PRESSURE
TRANSDUCER #2
HEAD
PRESSURE
TRANSDUCER #3
HEAD
PRESSURE
TRANSDUCER #4
REV. VLV. ENABLE INPUT
COMMON
PWM2+
AAON No.:
V20660
AO1
AO2
GND
COND. A ENABLE INPUT
COND. B ENABLE INPUT
COND. A SIGNAL
COND. B SIGNAL
PWM1-
PWM1+
PWM2-
COND. FAN A
COND. FAN B
COND. FAN A
COND. FAN B
GND
Two Condenser Head Pressure II Module
2C2 Orion No.:OE370-23-HP
www.aaon.com
RELA
Y
C
ONT
A
CT
RA
TING
IS
1
A
MP
MAX
@
24
V
A
C
COND. A ENABLE
COND. B ENABLE
REV. VLV. A ENABLE
REV. VLV. B ENABLE
R1
R2
R3
R4
RC RELAY COMMON
A1
A2
B1
B2
Figure 36, cont.: Four Compressor Micro Channel Condenser Wiring for the HP2C2
Four Compressor Micro Channel Condenser Wiring for the HP2C2