Reflect-O-Ray
®
EDS-4DI & EHS-4DI
Installation, Operation & Service
Page 44
Combustion Research Corporation
Is there spark at the igniter
after a 30 second pre
purge?
Remove power from
burner and check igniter
and ignition cable. Are
they damaged?
Replace igniter or
ignition cable as needed.
Is the igniter spark gap
set at 1/8"?
Carefully reset gap to
1/8"
Replace ignition control.
YES
NO
YES
Does the burner ignite?
Is the inlet gas pressure
during ignition correct?
NG - 5.0" min. LP - 11.0"
Check supply gas lines
and manual valves. Is
the inlet gas supply
piping sized correctly?
NO
Is there 24 volts on valve
terminals during ignition?
YES
Is there 24 volts at the
terminals on the ignition
control?
Is there gas pressure at
the manifold pressure
tap? NG - 3.5", LP -
10.0"
Check gas orifice for
blockage & proper size.
Replace gas valve.
Adjust supply gas pressure
to proper levels. (see name
plate)
Repair or replace gas
piping to correct size.
Check wires and replace
as needed.
Replace ignition control
Make sure the "ON / OFF"
knob on the valve is in the
"ON" position.
NO
YES
YES
NO
YES
NO
YES
NO
NO
NO
YES
YES
NO