Orion System Water Source Heat Pump X Module - Manual (Page 30)

WSHP-X Module
Technical Guide 30
Troubleshooting
Using LEDs to Verify Operation
The WSHP-X Module is equipped with LEDs that can be used to verify
operation and perform troubleshooting. There are LEDs for communi-
cation, operation modes, diagnostic codes, and relays. The Module has
twenty LEDs—one used for power, one used for communications, one
used for operation status, one used for alarms, fi ve used for compressor
relays, four used for Suction Pressure Transducer status, and seven used
for Binary Input status. See Figures 10 & 11 on page 31 for the LED
locations. The LEDs associated with these inputs and outputs allow you
to see what is active without using a voltmeter.
 Operation Status LEDs
“STATUS” - This is the status blink code LED. It will light up and
fi rst blink the address of the Module. It will then blink out the Mode of
Operation. See Table 8 below for Status Blink Code descriptions. The
blink code descriptions are also located on the Module’s front cover.
See Figure 10 for location.
No. of
Blinks
Status
1 Off Mode
2 Cool Mode
3 Heat Mode
Table 8: STATUS LED Blink Codes
“COMM” - This LED will light up to indicate Communications with
the VCM-X WSHP Series Controller or SA Series Controller. If Com-
munications are established, the COMM LED will blink. You should
not see this LED light up in stand-alone mode, because there would be
no communications with the VCM-X WSHP Series Controller or SA
Series Controller. See Figure 10 for location.
“ALARM” - This is the diagnostic blink code LED. It will light up and
blink out diagnostic codes. See Table 9 below for Diagnostic Blink
Code descriptions. The blink code descriptions are also located on the
Module’s front cover. See Figure 10 for location.
No. of
Blinks
Alarm
1 Low Suction Pressure
2 Compressor Lockout
3 Water Flow Failure
4 Low Leaving Water Temp
Table 9: ALARM LED Blink Codes
Figure 10: Operation Status LED Locations
WATTMASTER CONTROLS
Y 102374 REV 0 S
MADE IN USA
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