Dectron DRY-O-TRON Supervisaire DSV 040 User Manual

Dectron, Inc. March 2012
Owner’s Manual DSH/DSV/RSH/DBH/RBH Series Dehumidifier
Data subject to change without notice.
291
Alarms Troubleshooting Service
DECTRON
The signal from the evaporator
leaving air temperature sensor is
out of range.
• Be sure the sensor cable is properly
connected to both the sensor and the
controller.
• Disconnect the cable from the controller and
check the resistance of the sensor and cable
combination. Compare to the chart at the
end of this section.
If the resistance is outside the allowable
range, disconnect the cable from the sensor
and be sure the resistance of the cable is
above 1 million ohms. Connect the ends of
the cable wires together and be sure the
cable resistance is less than 5 ohms. If
either condition fails, replace cable.
Compare the resistance of the sensor
itself to the sensor resistance chart. Replace
sensor if necessary.
Connect sensor and cable to controller.
EVAPORATOR X
SENSOR FAULT,
where “X” is a place-
holder. Your display will
actually show a number
associated with a partic-
ular refrigeration circuit.
Fire alarm (by others) has been
tested but not completely reset
• Contact your fire alarm technician.
Fire or smoke present
• Be sure there is no fire.
Broken fire alarm wiring (by oth-
ers)
• Contact your fire alarm technician.
Shorted fire alarm wiring (by oth-
ers)
• Contact your fire alarm technician.
FIRESTAT ALARM
Where so equipped, the
DRY-O-TRON® will shut
down.
Cable or addressing problem
• Consult Dectron or a Dectron-certified
technician.
EXPANSION MODULE
COMMUNICATION
FAILURE
Excessive outdoor airflow rate
• Be sure the outdoor air intake rate is as
specified.
Heating fluid (water or steam) too
cold
• Be sure heating source is operating and
properly adjusted.
Inadequate flow of heating fluid
(water or steam)
• Be sure flow rates are as specified.
Outdoor air temperature unex-
pectedly low.
• Outdoor air intake rate may have to be
reduced during coldest weather.
Return air filters too dirty
• Replace with clean filters.
Defective freezestat • Check that the air temperature at the heating
coil is approximately 40°F when the freezstat
trips.
FREEZESTAT ALARM
The signal from freeze-
stat (where so equipped)
indicates imminent
freezing of the heating
coil. Where so
equipped, the DRY-O-
TRON® will shut down.
ALARM POSSIBLE CAUSES CHECKS & CORRECTIONS
8.11

Dectron DRY-O-TRON Supervisaire DSV 040 Specifications

General

Brand	Dectron
Model	DRY-O-TRON Supervisaire DSV 040
Category	Controller
Language	English