55
VCCX2 Controller Technical Guide
18-30
VAC
GND
Line Voltage
Size ransformer or
t
f
c
t
l
orrect otal oad.
RSMD = 18 VA
RSMD
BK
RD
WH
BK
RD
WH
S
P
1
S
UCTION
RESSURE
ENSOR
H
P
1
S
EAD
RESSURE
ENSOR
COMP STATUS 1
COMP STATUS 2
EMERGENCY SHUTDOWN
OUTSIDE COIL TEMP/POWF
10A250V
A
C
~
5
A
3
0
V
D
C
SA
VDE
G
5
Q
-1
A
4
O
M
R
O
N
DC12
V
C
H
IN
A
BK
RD
WH
BK
RD
WH
S
P
2
S
UCTION
RESSURE
ENSOR
H
P
2
S
EAD
RESSURE
ENSOR
COMP. DISCHARGE
TEMP. 1 SENSOR
LEAVING WATER
TEMP SENSOR
COMP. DISCHARGE
TEMP. 2 SENSOR
Figure 36: RSMD Inputs Wiring
Refrigerant System Module for Digital
Compressors
The ASM02201 Refrigerant System Module for Digital
Compressors (RSMD) can monitor and control up to two
compressors and condensers. The compressors can be in either
a tandem or non-tandem configuration. The module is designed
for R410-A refrigerant.
The RSMD is connected to the VCCX2 Controller. Up to four
RSMD’s can be connected, depending on the size of the system.
There are two E-BUS Expansion Ports which allow the use of
communicating sensors and the E-BUS Modules.
The RSMD provides three analog inputs, four binary inputs,
five relays, and two analog outputs. See
Figure 36, this page
for inputs wiring and
Figure 37, page 56
for outputs wiring.
Suction Pressure Transducer
The ASM02222 Suction Pressure Transducers must be wired
as shown in
Figure 36, this page
. It is typically required for all
VCCX2 applications.
WIRING
RSMD Inputs