Troubleshooting
4.Verify all modes of operation, by running the unit through all of the steps in the “Test Modes” section discussed in “Unit
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.\
Table 9. | System mode and fan selection chart |
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|
|
|
| |
Resistance Valves | Zone Sensor |
| Local Fan | |
(Ohms) |
| Unit/Fan Mode | Local Unit Mode | Mode |
|
|
|
|
|
2.32K |
| Off/ Auto | Off | Auto |
|
|
|
|
|
4.87K |
| Cool/Auto | Cool | Auto |
|
|
|
|
|
7.68K |
| Auto/Auto | Auto | Auto |
|
|
|
|
|
10.77K |
| Off/On | Off | On |
|
|
|
|
|
13.32K |
| Cool/On | Cool | On |
|
|
|
|
|
16.13K |
| Auto/On | Auto | On |
|
|
|
|
|
19.48K |
| Heat/Auto | Heat | Auto |
|
|
|
|
|
27.93K |
| Heat/On | Heat | On |
|
|
|
|
|
35.0K |
| Emergency Heat/Auto | Emergency Heat | Auto |
|
|
|
|
|
43.45K |
| Emergency Heat/On | Emergency Heat | On |
|
|
|
| |
Out of Range (Short) | INVALID/Short | Invalid (CV), Auto (VAV) | Invalid | |
|
|
|
| |
Out of Range (Open) | INVALID/Open | Invalid (CV), Off (VAV) | Invalid | |
|
|
|
|
|
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
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.
54 | Packaged Heat Pump • |
