AAON RSMD-CM, Technical Manual

Page: 9 / 43

9
RSMD-CM Technical Guide
WIRING
Outputs Wiring
Head Pressure Control
The Head Pressure Transducers are used to measure Head
Pressure at the discharge line. This Head Pressure is used to
drive the condenser fans with a 0-10 VDC output signal or
valve with a 2-10 VDC output signal to maintain a given Head
Pressure Setpoint.
Compressor Discharge Sensors
The Digital Compressor Discharge Temperature Sensor monitors
the discharge temperature from the digital compressor to protect
against overheating.
Leaving Water Temperature Sensor
The Leaving Water Temperature Sensor is used to measure the
Leaving Water Temperature when used on a water source heat
pump unit.
CAUTION:
Suction pressure transducers should
be installed in a vertical portion of the
suction line to prevent refrigerant oil from
accumulating in the sensor.
NOTE:
If there are two compressors on a single circuit (a
tandem circuit), Suction Pressure 2, Head Pressure
2, and Condenser Signal 2 would not be used.
Figure 3: RSMD-CM Outputs Wiring
GND
18-30
VAC
Line Voltage
Actuator
NOTE:
All relay outputs are normally open
and rated for 24 VAC power only.
1 Amp maximum load.
24 VAC ONLY
COMPRESSOR 1 ENABLE
COMPRESSOR 2 ENABLE
CONDENSER 1 ENABLE
CONDENSER 2 ENABLE
REVERSING VALVE
Digital Compressor 1 Unloader
Digital Compressor 2
Signal 1
Condenser
Condenser
Signal 2
WSE Bypass
Valve Actuator
Wires to VCCX2
Loop Communications
connector when used on
a split system.
GND
+
GND
+
COM
+
COM
+
GND
TEMP3
TEMP2
TEMP1
TB9
GND +5V
D12
BIN4
D11
BIN3
D10
BIN2
D9
BIN1
TB12
GND
HP-2
+5V
TB8
GND
J1 C
C
SP-2
+5V
TB6
GND
HP-1
+5V
TB3 POWER
COMM
ALARM
STATU
GND
SP-1
+5V
TB4
YS102632 REV 1
R30
4751
R1
R34
4751
R2
4751
R38
R3
4751
R42
R4
4751
R58
R5
COM
V6
TB7
COMP1
24VAC
P6
COMP2
TB11
AOUT 1
AOUT 2
GND
P2
HH485
R+
GND
T-
TB2
C20 .01uF
I
O
I
O
OMRON G5Q-1A4 DC12V
SA
5A30VDC
CHINA 10A250VAC~
R14
R27 R28
R31 R32
R35 R36
R39 R40
R44 R43
C43 R49 R48
R56 R54
1002 1002 1002
1002 1002 1002
.1uF 1002 1002
.1uF 1002 1002
.1uF 1002 1002
.1uF 1002 1002
.1uF 1002 1002
SERIAL #
ALARM
UP
DOWN
ENTER MENU
AAON P/N: ASM06709
+24
VA
C
GND
RELAY CONTACT
RATING IS 1 AMP
MAX @ 24 VAC
CONDENSER 1
COMP 1
COMP 2
ANALOG OUT
REVERSING VALVE
COMMON
RELAY OUTPUT
TERMINALS
LABEL P/N:
G102070
COND 1
COND 2
GND
24 VAC
POWER ONLY
WARNING!
POLARITY
MUST BE
OBSERVED
OR THE
CONTROLLER
WILL BE
DAMAGED
CONDENSER 2
HEAD PRES 1
+5 V
+5 V
COMP DIS 1
COMP 1
SP-1
HP-1
COMP DIS 2
COMP 2
GND
GND
OA COIL / POWF
EMER SHDN
GND
LEAVING H20
GND
SUCTION PRES 2
HEAD PRES 2
+5 V
+5 V
SP-2
HP-2
GND
GND
R+
SHD
T-
R+ SHD T-
E-BUS DUAL E-BUS
EXPANSION
RSMD-CM
www.aaon.com
SUCTION PRES 1
Actuator must be 0-10 VDC with
24 VAC power. Confirm wiring
terminations with manufacturer's
wiring instructions.
1 COM
2 +
3 Y1