Omega Vehicle Security SH73343 - Manual (Page 2)

OPERATING INSTRUCTIONS OMEGA
P age 2
Precautions
! Use filtered air. Avoid grease, oil, or oil vapors, corrosive or reactive gases which will damage heater.
! Use exposed junction type “K” thermocouple within one inch of the heater exit for good control.
Installation and Wiring
See attached drawings.
WARNING! Sensors are at or near line voltage. Use teflon jacketed, teflon insulated “K” thermocouple wire to
connect heater sensors to the over-temperature board.
1. Be sure heater is securely mounted.
2. Follow all applicable electrical codes when mounting and wiring heater and control components.
Operation
1. Turn on air and set pressure or flow to desired operating level.
2. Turn on power to the over-temperature board.
3. Turn on power to the power controller.
4. Turn on power to the temperature controller.
5. Set desired temperature on temperature controller.
During operation, with steady-state airflow, the exit temperature should not vary more than a few degrees from set
point. Although the heater will not burn out with zero airflow, if the heater is operated in a vertical downward position
and an airflow of 100 SCFH or below is run through the heater, the inlet temperature of the heater will exceed 150°F
and the Over-temperature board will begin to limit power to the heater.
To Shut Down:
1. Turn off power to the temperature controller and the power controller.
2. Allow air to continue to flow for a minimum of 1 minute or until exit air temperature is 150°C or less for
safety. Continue airflow longer if hot equipment components present any potential hazard to personnel.
3. Turn off air to the system.
Replacing Elements
Before replacing the element assembly, determine the cause of the element failure. Prior to powering the system
back up, make certain that the entire system is operating properly. Possible causes of element failure are:
1. Normal end of Life
2. Failure in Control System
3. Mechanical Damage to System
REPLACEMENT PROCEDURE
1. Turn off power to the system. Follow lock-out/tag-out procedures.
2. Unscrew the 3 external housing screws and remove the stainless heater housing.
3. Unplug element from its socket and plug new element into the socket.
4. Slide the stainless heater housing back over the element and secure housing with the 3 external housing screws.
Performance Curves
The following curves show the maximum temperature performance of the SH-Series heater as measured by a “K”
type thermocouple located within 1” of heater exit. Use of other temperature measuring devices or varying the
distance of the measurement may cause different temperature readings. The heaters will not generate temperatures
greater than indicated on the graph in and if used correctly will maintain operating life in excess of 5000 hours.