6.2 Blower (Fan) Switch
Turning “ON” the fan switch will cause the unit's internal blower to run continuously, whether the unit is dehumidifying or not. This function is desirable if the unit is used for air circulation.
Turning “OFF” the fan switch will cause the unit’s internal blower to run only while the unit is dehumidifying.
Figure 15: Blower
fan switch.
the refrigerant pressure and temperature to drop. It next enters the evaporator coil where it absorbs heat from the incoming air and evaporates.
7 Maintenance
WARNING
NOTE: Do not operate the unit without the filter or with a less effective filter. The heat exchange coils inside the unit could become clogged and require disassembly to clean.
7.1 Air Filter
The Santa Fe HC ships with a pleated fabric filter standard. This should be checked monthly. Operating the unit with a dirty filter will reduce dehumidifier capacity and efficiency and may cause the compressor to cycle on and off unnecessarily.
The pleated fabric filter can generally be vacuumed clean several times before needing replacement. Replacement filters can be ordered from the factory. To order a replacement filter, refer to the options and accessories table in this document.
7.2 Blower Oiling
The blower motor has been lubricated at the factory for many years of normal operation.
8 Service
IMPORTANT
WARNING: Servicing the Santa Fe HC with its high pressure refrigerant system and high voltage circuitry presents a health hazard which could result in death, serious bodily injury, and/or property damage. Only qualified service people should service this unit.
8.1 Technical Description
The Santa Fe HC uses a refrigeration system similar
to an air conditioner's to remove heat and moisture from incoming air, and add heat to the air that is discharged. Hot, high pressure refrigerant gas is routed from the compressor to the condenser coil. The refrigerant is cooled and condensed by giving up its heat to the air that is about to be discharged from the unit. The refrigerant liquid then passes through a filter/drier and capillary tubing which cause
Figure 16: Santa Fe HC refrigeration system.
The evaporator operates in a flooded condition, which means that all the evaporator tubes contain liquid refrigerant during normal operation. A flooded evaporator should maintain constant pressure and temperature across the entire coil, from inlet to outlet. The mixture of gas and liquid refrigerant enter the accumulator after leaving the evaporator coil. The accumulator prevents any liquid refrigerant from reaching the compressor. The compressor evacuates the cool refrigerant gas from the accumulator and compresses it to a high pressure and temperature gas to repeat the process.
8.2 Troubleshooting
No dehumidification, neither blower nor compressor run with fan switch OFF.
1.Unit unplugged or no power to outlet.
2.Humidity control set too high or defective.
3.Loose connection in internal wiring.
No dehumidification, compressor does not run but blower runs with fan switch OFF and humidity control turned to ON.
1.Defective compressor or compressor run capacitor.
2.Loose connection in compressor circuit.
3.Defective compressor overload.
4.Defrost thermostat open.
Blower runs with fan switch OFF, but compressor cycles on & off.
1.Low ambient temperature and/or humidity causing unit to cycle through defrost mode.
2.Defective compressor overload.
3.Defective compressor.
4.Defrost thermostat defective.
Blower does not run with fan switch in either position. Compressor runs briefly but cycles on & off.
1.Loose connection in blower circuit.
2.Obstruction prevents impeller rotation.
3.Defective blower.
4.Defective blower switch.
6 | Santa Fe HC Owners Manual |