Orion-system Water Source Heat Pump X Module User Manual download pdf (Page 31)

Technical Guide

WSHP-X Module

Troubleshooting

Suction Pressure Transducer LEDs

“PRES 1-4” - There are LEDs for each of the Suction Pressure

Transducers. Since each compressor has a sensor, these LEDs which

are located on the top left of the WSHP-X Module will give a better

indication of which compressor is causing an alarm. See Table 10 for

PRES LED status descriptions. See Figure 11 for locations.

No. of

Blinks

Status

Solid On Sensor is Detected and is OK

Solid Off Sensor is Not Detected

1 Low Suction Pressure on this Compressor

2 Compressor is Locked Out

Table 10: PRES 1-4 LED Blink Codes

Figure 11: PRES 1-4 LED Locations

LED Diagnostics

“POWER” LED: When the WSHP-X Module is powered up, the

POWER LED (located above the address switches) should light up and

stay on continuously. If it does not light up, check to be sure that the

power wiring is connected to the board, the connections are tight, and

the VCM-X WSHP Series Controller or SA Series Controller is powered

(if connected). If after making all these checks, the POWER LED does

not light up, the module is probably defective.

“COMM” LED: When the WSHP-X Module is powered up while in

Stand Alone Mode, the COMM LED does not light up. When the module

is connected to the VCM-X WSHP Series Controller or SA Series Con-

troller, the COMM LED should light up, indicating Communications.

Each time Communications are detected, this LED should continuously

blink on and off for a half second. This LED should never stop checking

for a Communications signal. If it does not light up, check to be sure

that the power wiring is connected to the board, the connections are

tight, and the VCM-X WSHP Series Controller or SA Series Controller

is powered. If after making all these checks, the COMM LED does not

light up, the board is probably defective.

“STATUS” LED: As previously described, when the WSHP Module is

ﬁ rst powered up, the STATUS LED will b

link out the Mode of Operation.

“ALARM” LED: As previously described, this LED will blink on and

off to indicate alarms and diagnostics.

NOTE: The WSHP-X Module contains no user-serviceable parts.

Contact qualiﬁ ed technical personnel if your Module is

not operating correctly.

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Orion-system Water Source Heat Pump X Module User Manual Page 31

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