Unit Economizer Control (Eca); Troubleshooting - Trane Axiom GWS Series Installation, Operation And Maintenance Manual

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

Table 24. Verify economizer status by economizer
actuator (ECA) LED indicator:
OFF:
ON:
Slow Flash:
Fast Flash:
WSHP-SVX015C-EN
No Power or Failure
Normal, OK to Economize
Normal, Not OK to Economize
1/2 Second On / 2 Seconds Off:
Error Code:
Communications Failure
Table 24. Verify economizer status by economizer
actuator (ECA) LED indicator: (continued)
Pulse Flash:
1 Flash:
2 Flashes:
3 Flashes:
4 Flashes:
5 Flashes:
6 Flashes:
7 Flashes:
8 Flashes:
9 Flashes:
10 Flashes:
11 Flashes:
T T r r o o u u b b l l e e s s h h o o o o t t i i n n g g
2 Second On / 1/2 Second Off:
Error Code:
Actuator Fault
CO2 Sensor
RA Humidity Sensor
RA Temp Sensor
OA Quality Sensor
OA Humidity Sensor
OA Temp Sensor
MA Temp Sensor
RAM Fault
ROM Fault
EEPROM Fault
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