Form I-RA/D 140/235 (Version A), Mfg No. 110318 Rev 4, Page 21
Check-Test
Check Test - After Start-up
Check that there is sufficient draft for proper combustion. A negative
draft of .01”-.02” w.c. is required in the combustion chamber over
the fire.
NOTE:
Draft measurements must be checked anytime there is a
change in the air band setting.
Instructions for
Measuring Draft Over Fire:
• Remove the metal plug in the observation door.
• Insert draft gauge (such as Dwyer pressure gauge). Measurement
must read at least a negative .01” w.c. to negative .02” w.c.
• If measurement is not as required, adjust draft regulator until
measurement is within the proper limits (see page 16).
• Replace metal plug in the observation door.
Heater
Start-Up
Start-Up Procedure
After installing and testing your unit, follow the procedure below to
start the system.
• Turn on the main electrical supply to the heater.
• Set the manual disconnect switch to the “ON” position.
• Set the thermostat to a temperature above room temperature.
NOTE:
When the low oil temperature limit senses the proper oil
temperature, the green light on the burner junction box will come on
and the heater will fire.
A 10-minute delay may occur before firing depending on the system
and the oil temperature. The delay only occurs on initial start-up or
after an electrical power interruption.
If the system does not automatically try to re-light, then the controller
is in the “lockout” condition and must be reset by depressing the red
button on the controller and holding it down for three seconds.
Once the system is purged of all air and oil reaches the nozzle, igni-
tion will occur.
Observation Door
- Remove plug;
insert draft gauge
into port
.
NOTE: Heater illustrated
does not have a backflow
sensor switch. Beginning
1/96, heaters installed in
Canada are equipped with a
backflow sensor attached to
the observation door.
Beginning 1/02, all heaters
are equipped with a backflow
sensor.
