AAON RSMV-HP, Technical Manual, Page: 7 / 32

RSMV-HP Technical Guide
WIRING
7
RSMV-HP Outputs Wiring
24VAC GND
Line Voltage
Size Transformer For
Correct Total Load.
RSMV = 18 VA
OE370-26-RSMV-HP
RSM For VFD Compressors -
Heat Pump
NOTE:
ALL RELAY OUTPUTS ARE NORMALLY
OPEN AND RATED FOR 24 VAC POWER
ONLY - 1 AMP MAXIMUM LOAD
REVERSING VALVE
COMPRESSOR 2 ENABLE
COMPRESSOR 1 ENABLE
24 VAC ONLY
RLY1
RLY2
COMM
RLY4
RD
WH
BK
GRN
EXPANSION
VALVE 1
RD
WH
BK
GRN
EXPANSION
VALVE 2
RD
WH
BK
GRN
EXPANSION
VALVE 3
RD
WH
BK
GRN
EXPANSION
VALVE 4
RLY3
CONDENSER ENABLE
M
ENTER
UP
DOWN
ALARM
MENU
OE370-26-RSMV-HP
REFRIGERANT SYSTEM
MODULE V-HP
AAON No.: V61540
E-BUS
+24 V
A
C
GND
RELAY CONTACT
RATING IS 1 AMP
MAX @ 24 VAC
CONDENSER
COMP 1
COMP 2
SUCTION
PRESSURE
SENSOR
HEAD
PRESSURE
SENSOR
COIL TEMP
SENSORS
BINARY
INPUTS
ANALOG
OUTPUTS
BLACK
+5 V
+5 V
COIL TEMP 1
COMP STATUS 1
BLACK
COMP SIGNAL
CONDENSER VALVE
WHITE
SP
HP
COIL TEMP 2
COMP 2 STATUS
GND
GND
COIL TEMP 3
OUTSIDE COIL TEMP / POWF
NOT USED
COIL TEMP 4
GND
WHITE
RED
RED
GND
GREEN
GREEN
REVERSING VALVE
COMMON
RELAY OUTPUT
TERMINALS
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WattMaster Overlay
#
000071 Rev1D SW
EXP VLV 4
BLACK
BLACK
WHITE
WHITE
RED
RED
GREEN
GREEN
EXP VLV 2 EXP VLV 1
EXP VLV 3
E-BUS
LEAVING WATER TEMP
OPEN
GND
GND
MODBUS
Connect to
VCC-X or VCCX2
Controller
Figure 3: RSMV-HP Outputs Wiring
CAUTION: The Shraeder port used for installation of the
suction pressure transducer should be located in a vertical
position of the suction line to prevent refrigerant oil from
accumulating in the sensor.
Head Pressure Control
The RSMV-HP can monitor a Head Pressure Transducer and
control Condenser Fans to maintain a Head Pressure Setpoint. Th
e
Condenser Fan will be controlled with a 0-10 VDC output signal.
Head pressure control can also be used to modulate the water valve
when confi gured as a water source heat pump. Th
e water valve signal
is 2-10 volts.
Coil Temperature Sensors
The Coil Temperature Sensors are used to measure Coil Temperature
after each evaporator coil line. This temperature combined with the
calculated saturated refrigerant temperature is used to calculate the
Superheat of each individual evaporator coil. The Superheat is used
to drive the Expansion Valves to maintain a given Superheat Setpoint.
Leaving Water Temperature Sensor
Th e Leaving Water Temperature Sensor is used to measure the
Leaving Water Temperature when used on a WSHP unit.