AAON RSMV-HP, Technical Manual, Page: 20 / 32

Zone
Zone
TROUBLESHOOTING
RSMV-HP Technical Guide 20
RSMV-HP LED Diagnostics
Using RSMV-HP LEDs To Verify
Operation
The RSMV-HP’s are equipped with LEDs that can be used to
verify operation and perform troubleshooting. There are LEDs for
communication, operation modes, and diagnostic codes. See
Figure
5, below for the LED locations. The LEDs associated with these
inputs and outputs allow you to see what is active without using a
voltmeter. The LEDs and their uses are as follows:
 
Diagnostic LEDs
STATUS - If the software is running, this LED should blink at a rate
of 1 blink per second.
ALARM (on board) - If the module does not receive communications
for more than 1 minute, this LED will light up, the relays will turn
off , and the Analog Outputs will go to 0 VDC.
ALARM (above LCD display) This red LED will light up and stay
lit when there is an alarm present. The type of alarm will display on
the LCD display. The ALARM LED also blinks when the expansion
valve is initializing at startup.
COMM - Every time the module receives a valid E-BUS request
from the VCC-X / VCCX2 Controller, this LED will blink on and
then off , signifying that it received a valid request and responded.
POWER - This LED will light up to indicate that 24 VAC power has
been applied to the controller.
Binary Input LEDs
BIN1 - This green LED will light up when Compressor Status 1
contact is closed.
BIN2 - This green LED will light up when Compressor Status 2
switch is closed.
BIN3 - This green LED will light up when the Outside Coil
Temperature switch is closed.
Relay LEDs
RLY1
-
RLY4
- These green LEDs will light up when the relays are
enabled and will stay lit as long as they are active.
RSMV-HP Stepper Motor Valve LEDs
EXV-1
- This green LED will light up when Expansion Valve 1 is
modulating.
EXV-2
- This green LED will light up when Expansion Valve 2 is
modulating.
EXV-3
- This green LED will light up when Expansion Valve 1 is
modulating.
EXV-4
- This green LED will light up when Expansion Valve 2 is
modulating.
Figure 5: RSMV-HP LED Locations
RSMV-HP
BINARY
INPUT
LEDs
EXV-1
LED
STATUS
ALARM
COMM
POWER
LEDs
RELAY
LEDs
ALARM
LED
EXV-2
LED
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
www.aaon.com
WattMaster Overlay
#
000071 Rev1C 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
EXV-3
LED
EXV-4
LED