Trouble Shooting
40 RT-SVX37B-EN
5. After verifying proper unit operation, exit the test
mode. Turn the fan on continuously at the ZSM, by
pressing the button with the fan symbol. If the fan
comes on and runs continuously, the ZSM is good. If
you are not able to turn the fan on, the ZSM is
defective.
ReliaTel Refrigeration Module (RTRM)
Default Chart
If the RTCI loses input from the building management
system, the RTRM will control in the default mode after
approximately 15 minutes. If the RTRM loses the Heating
and Cooling setpoint input, the RTRM will control in the
default mode instantaneously. The temperature sensing
thermistor in the Zone Sensor Module is the only
component required for the “Default Mode” to operate.
Unit Operation without a Zone Sensor
This procedure is for temporary operation only. The
economizer and condenser fan cycling functions are
disabled.
1. Open and Lock the unit disconnect switch.
2. Remove the Outside Air Sensor (OAS) from the
condenser section of unit.
3. Use two (2) wire nuts, to individually cap the wires.
4. Locate the RTRM (J6). Connect two (2) wires to
terminals J6-1 and 2.
5. Connect the sensor (OAS) using two wire nuts to the
two (2) field supplied wires that were connected to
terminals 1 and 2 on J6.
Unit Economizer Control (ECA)
Troubleshooting
ReliaTel Control
Verify Economizer Status by Economizer Actuator (ECA)
LED indicator:
OFF: No Power or Failure
ON: Normal, OK to Economize
Slow Flash: Normal, Not OK to Economize
Fast Flash - 1/2 Second On / 2 Seconds Off:
Error Code:
Communications Failure
Pulse Flash: 2 Seconds On / 1/2 Second Off:
Error Code:
1. Flash: Actuator Fault
2. Flashes: CO
2
Sensor
3. Flashes: RA Humidity Sensor
4. Flashes: RA Temp Sensor
5. Flashes: OA Quality Sensor
6. Flashes: OA Humidity Sensor
7. Flashes: OA Temp Sensor
8. Flashes: MA Temp Sensor
9. Flashes: RAM Fault
10. Flashes: ROM Fault
11. Flashes:EEPROM Fault
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