Table 7 - Display Codes
OPERATING MODES
|
|
| ALARMS |
| |
|
| Action |
| Reset |
|
Display | Description | Taken Sv |
| Probable Cause | |
| Method | ||||
|
| Control |
|
| |
|
|
|
|
| |
|
|
|
|
|
|
Comp | Al | Al | FailureCircuit | A | shut | off | M a n u a l | High pressure switch trip or high discharge gas temp | ||
|
|
| Failure | Comp | shut off |
| M a n u a l | switch trip, on when it is not supposed to be on. Wiring | ||
Campo p | A2Bl | ii: | Failure | Circuit | B | shut | off | M a n u a l | error between electronic control and compressor relay. | |
Comp |
| B 2 | Failure | Comp | shut off |
| M a n u a l |
| ||
Loss of charge circuit A |
| Circuit | A | shut | off | M a n u a l | Low refrigerant charge, or loss of charge pressure switch | |||
Loss of charge circuit B |
| Circuit | B | shut | off | M a n u a l | failure. | |||
Low cooler flow |
|
| Unit shut | off |
| M a n u a l | No cooler flow or reverse cooler flow | |||
Low oil pressure circuit A | Circuit | A | shut | off | M a n u a l | Oil pump failure or low oil level, or switch failure. | ||||
low oil pressure circuit B | Circuit | B | shut | off | m a n u a l |
| ||||
Freeze | protection |
|
| Unit shut | off |
| Auto. | Low cooler flow | ||
High suction superheat circuit A | Circuit | A | shut | off | M a n u a l | Low charge or EXV failure, or plugged filter drier. | ||||
High suction superheat circuit B | Circuit | B | shut | off | M a n u a l |
| ||||
Low suction suoerheat circuit A | Circuit | A | shut | off | M a n u a l | EXV failure ar cooler thermistor error. | ||||
Low suction superheat circuit B | Circuit | 6 | shut | off | M a n u a l |
| ||||
Leaving | water | thermistor | failure | Unit shut | off |
| Auto. | Thermistor failure, or wiring error, or thermistor not | ||
Entering | water | thermistor | failure | Use default value | Auto. | connected to input terminals. | ||||
Cooler thermistor failure circuit A | Circuit | A | shut | off | Auto. |
| ||||
Cooler thermostor failure circuit B | Circuit | B | shut | off | Auto. |
| ||||
Comp thermistor failure circuit A | Circuit | A | shut | off | Auto. |
| ||||
Comp thermistor failure circuit B | Circuit | B | shut | off | Auto. |
| ||||
Reset thermistor | failure |
| Stop reset |
| Auto. |
| ||||
NOTES:
1.Freeze protection trips at 35 F (1.7 C) for water and 6 degrees F (3.3 degrees C) below set point for brine units. Resets at 6 degrees above set point.
2.All auto. reset failures that cause the unit to stop will restart the unit when the error has been corrected.
3.All manual reset errors must be reset by moving the control switch to STANDBY then to RUN.
4.Valid resistance range for thermistors is 363,000 ohms to 216 ohms.
9
