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Trane WC-IOM-7 manual Unit Economizer Control ECA Troubleshooting, ReliaTel Control

Models: WC-IOM-7

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Unit Economizer Control (ECA) Troubleshooting

Troubleshooting

Unit Economizer Control (ECA) Troubleshooting

ReliaTel Control

Table 10. 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

 

 

 

 

 

1/2 Second On / 2 Seconds Off:

Fast Flash -

 

Error Code:

 

 

 

 

 

Communications Failure

 

 

Pulse Flash:

2 Second On / 1/2 Second Off:

 

 

 

 

 

Error Code:

 

 

 

1

Flash:

Actuator Fault

 

 

 

2

Flashes:

CO2 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

 

 

 

WC-IOM-7 • Packaged Heat Pump

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Trane WC-IOM-7 manual Unit Economizer Control ECA Troubleshooting, ReliaTel Control
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