AAON Orion VCCX2 User Manual

59
VCCX2 Controller Technical Guide
Subcool Monitor Controller Wiring
The ASM02350 Subcool Monitor Controller reads the liquid
line pressure and then converts it to saturated liquid temperature
and compares it to the measured liquid line temperature to
calculate subcooling. The use of the Subcool Monitor Controller
is optional.
The Subcool Monitor Controller is connected to the VCCX2
Controller. One or two Subcool Monitors can be connected,
depending on the size of the system:
• One Subcool Monitor Controller is used when three
RSMZ’s are used
• Two Subcool Monitor Controllers are used when six
RSMZ’s are used.
The Subcool Monitor Controller contains a 2 x 8 LCD character
display and four buttons that allow for conguration, status,
and alarm display. This module must be congured to work
with R410A refrigerant and congured for 667 PSI liquid line
pressure transducers.
The Subcool Monitor Controller must be connected to an 18-30
VAC power source.
See Figure 40, this page for wiring.
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.
1
1
0
0
A
A
2
2
5
5
0
0
V
V
A
A
C
C
~
~
5
5
A
A
3
3
0
0
V
V
D
D
C
C
S
S
A
A
V
V
D
D
E
E
G
G
5
5
Q
Q
-
-
1
1
A
A
4
4
O
O
M
M
R
R
O
O
N
N
D
D
C
C
1
1
2
2
V
V
C
C
H
H
I
I
N
N
A
A
SIG
GND
+V
BK
RD
WH
SIG
GND
+V
BK
RD
WH
SIG
GND
+V
BK
RD
WH
TEMP1
TEMP2
TEMP3
GND
18-30 VAC
GND
Line Voltage
Size Transformer For Correct Total Load.
Subcool Monitor Controller = 18 VA
ALARM
UP
DOWN
ENTERMENU
Liquid Line
Pressure
Transducer 1
Liquid Line
Pressure
Transducer 2
Liquid Line
Pressure
Transducer 3
Liquid Line Temp
Sensor #2
Sensor #1
Liquid Line Temp
Sensor #3
Liquid Line Temp
Figure 40: Subcool Monitor Controller Wiring
WIRING
Subcool Monitor Controller

AAON Orion VCCX2 Specifications

General

Brand	AAON
Model	Orion VCCX2
Category	Controller
Language	English