SantaFe ULTRA Serie Instrucciones De Instalación página 24

14
SERVICE
Troubleshooting (Continued)
Symptom
Low dehumidification
capacity (evaporator
is frosted
continuously).
Dehumidification is
being called for.
No ventilation.
Ventilation is being
called for.
Dehumidifier
removes some water,
but not as much as
expected.
2. Refrigerant Charging
WARNING!
SERVICING THE SANTA FE ULTRA70 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. SERVICE MUST BE PERFORMED BY
A QUALIFIED SERVICE TECHNICIAN.
If the refrigerant charge is lost due to service or a leak, the leak should be repaired and a new charge must be
accurately weighed in. If any of the old charge is left in the system, it must be recovered before weighing in the
new charge. Refer to the unit nameplate for the correct charge weight and refrigerant type.
24
Santa Fe ULTRA70 Installation & Operation Instructions
Possible Reason
1. Defrost thermostat loose
or defective.
2. Low refrigerant charge.
3. Dirty air filter(s) or air
flow restricted.
4. Excessively restrictive
ducting connected to
unit.
1. Loose connection in
ventilation control
circuit.
2. Loose connection in
damper power circuit.
3. Defective outdoor air
damper.
1. Air temperature and/or
humidity have dropped.
2. Humidity meter and or
thermometer used are
out of calibration.
3. Unit has entered defrost
cycle.
4. Dirty air filter(s) or air
flow is restricted.
5. Defective defrost
thermostat.
6. Low refrigerant charge.
7. Air leak such as loose
cover or ducting leaks.
8. Defective compressor.
9. Restrictive ducting.
Troubleshooting Procedure
WARNING!
ELECTRICAL SHOCK HAZARD:
Electrical power must be present to perform
some tests. These tests should be performed by
a qualified service person.
Troubleshooting Procedure for Control Related
Issues
This method of diagnosis is used to
function check the internal components in
the dehumidifier. This is to be used when a
performance issue is suspected.
1. Set the humidity controller all the way to the
most humid setting or off position – Did the
unit shut off?
2. If yes, turn the fan setting to the ON position
– does the fan start?
3. If fan starts, leave in the fan ON position
and set the humidity all the way to driest
setting. May have to wait 5 minutes for the
compressor to start.
4. Listen for a distinct buzzing/humming
sound of a compressor starting up – do you
hear this noise?
5. If compressor is running and continues to
run, after about 15 minutes you should feel
a slight increase in air temperature being
discharged out of the discharge air side of
the unit.
6. If so, depending on your environmental
conditions (temp/Rh%), you should see
some water production out of the hose
within 30 minutes or so. (Note: If the room
temperature is 55 degrees or below and/
or in area of low relative humidity, the
dehumidifier will produce little to no water.)
7. Collecting the water removed in a 24
hour period will give a measurement of
performance.
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