Dectron DRY-O-TRON Supervisaire DSV 040 User Manual

DECTRON
GAS BOILER ALARM
A general failure of an associated
gas boiler supplied by Dectron.
• Consult the boiler manual.
MAX. EXHAUST BLOW-
ER OVERLOAD
(Purge mode equipped
units)
The motor protection
device for the larger
exhaust air blower has
tripped.
Excess Maximum Exhaust airflow
rate
• Be sure the Maximum Exhaust airflow rate is
as specified. Excess airflow can overload some
blowers.
ALARM POSSIBLE CAUSES CHECKS & CORRECTIONS
Applied voltage out of tolerance
or out of balance
• A qualified person should be sure that the
average applied voltage is within ±10% of the
nameplate value and that the individual phase
voltages are within ±1% of the average voltage
(See NEMA MG-1). Reset overload.
GLYCOL PUMP OVER-
LOAD
The motor protection
device for the glycol
pump (where so
equipped) has tripped.
Excessive glycol viscosity
• Be sure the glycol is of the proper type and
concentration.
Glycol temperature colder than
expected.
• Be sure glycol temperature is above -30°F.
Applied voltage out of tolerance
or out of balance
• A qualified person should be sure that the
average applied voltage is within ±10% of the
nameplate value and that the individual phase
voltages are within ±1% of the average voltage
(See NEMA MG-1). Reset overload.
HUMIDITY SENSOR
FAULT
Humidity sensor signal
is out of range.
• Be sure the sensor cable is properly
connected to both the sensor and the controller.
• Disconnect the cable from the sensor and
from the controller and be sure the resistance of
the cable is above 1 million ohms. Connect the
ends of the cable wires together at the sensor
end and be sure the cable resistance is less than
5 ohms. If either condition fails, replace the
cable.
Compare the output signal of the sensor itself to
the expected value. Replace sensor if necessary.
Connect sensor and cable to controller.
Sensor cable disconnected
Sensor cable broken or shorted
Defective sensor
Dectron, Inc. March 2012
DSH/DSV/RSH/DBH/RBH Series Dehumidifier
Owner’s Manual
Data subject to change without notice.
292
Service Troubleshooting Alarms
8.12

Dectron DRY-O-TRON Supervisaire DSV 040 Specifications

General

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