Orion System Dual Electronic Expansion Valve Module - Manual (Page 11)

Technical Guide
Dual Electronic Expansion Valve Module
11
Diagnostics
Figure 4: Dual Electrical Expansion Valve Module LED Locations and Descriptions
GND
SERIAL #
DRIVING
BLACK
WHITE
RED
GREEN
SIG A
SIG B
+5V
+5V
GND
GND
VALVEA
VALVEB
COILTEMP A
COILTEMP B
GND
GND
D8
D7
D6
D5
C2
14
D1
D3
J1
R41
TB2
TB3
TB4
TB6
C31
MADE IN USA
YS102468 REV 3
RLYB
RLYA
COMMON
STATUS
ALARM
COMM
POWER
VALVE A DRIVE
DRIVING
BLACK
WHITE
RED
GREEN
TB1
TB7
.1 uF
VALVE B DRIVE
WATTMASTER CONTROLS
.1uF
GND
SERIAL #
DRIVING
BLACK
WHITE
RED
GREEN
SIG A
SIG B
+5V
+5V
GND
GND
VALVEA
VALVEB
COILTEMP A
COILTEMP B
GND
GND
D8
D7
D6
D5
C2
14
D1
D3
J1
R41
TB2
TB3
TB4
TB6
C31
MADE IN USA
YS102468 REV 3
RLYB
RLYA
COMMON
STATUS
ALARM
COMM
POWER
VALVE A DRIVE
DRIVING
BLACK
WHITE
RED
GREEN
TB1
TB7
.1 uF
VALVE B DRIVE
WATTMASTER CONTROLS
.1uF
VALVE A & B
LEDs
RELAY
LEDs
STATUS LED
ALARM LED
COMM LED
POWER LED
VALVE A
DRIVING LED
VALVE B
DRIVING LED
ALARM LED
Communication LEDs
COMM - This yellow LED will light up and blink when E-BUS com-
munications are detected.
Expansion Valve LEDs
DRIVING VALVE A - This green LED will light up when Expansion
Valve A is being driven open or closed.
DRIVING VALVE B - This green LED will light up when Expansion
Valve B is being driven open or closed.
Relay LEDs
RLYA - This green LED will light up when Valve A has an alarm and
will stay lit as long as Valve A relay is active.
RLYB - This green LED will light up when Valve B has an alarm and
will stay lit as long as Valve B relay is active.
Binary Input LEDs
VALVE A - This green LED will light up when Valve A is enabled.
VALVE B - This green LED will light up when Valve B is enabled.