GSI Group PNEG-377, Service Manual

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84
Fan and Heater
FLAME DETECTOR KIT INSTALLATION
1991-1993
Flame Detector Kit Installation
Part Number HF-7136
1. Mount the detector module inside the
heater control box. Module can be
mounted in any position, but install so
that moisture cannot get inside unit.
2. Run white wire to common or neutral
of 120V power source.
3. Run black wire to terminal that is 110V
when heater gets power. (Wire module
power in parallel with ignition trans
former or main solenoid if they are
110V.)
4. Run green and red wires down to sens-
ing probe. Red wire should go to flame
probe electrode and green wire should
go to flame probe ground. For proper
operation the ground wire should be
connected as close to probe as possible.
5. The remaining three wires are the
normally open or normally closed relay
contacts that replace the mechanical
flame probe. The blue-black wire is the
common, the white-brown wire is the
normally closed, and the white-blue is
the normally open. On all Airstream
heaters use the blue-black and the
white-brown wires. The white-blue
wire should be used only on makes of
heaters that use a normally open probe.
6. Mount the sensing probe so the sensing
portion will be in the flame at its highest
and lowest operating conditions.
7. Inside the flame detector is a red neon
light. This light should be on when
flame is being sensed and will go out
when flame out condition is detected.
NOTE: IF PROBE DOES NOT SEEM TO SENSE FLAME AS IT SHOULD REVERSE THE
RED AND GREEN WIRES AT THE PROBE. THIS MAY INCREASE SENSITIVITY OF
PROBE ON CERTAIN MAKES OF HEATERS.
FLAME
DETECTOR
MODULE
CONNECT WHERE
MECHANICAL PROBE
WIRES WERE CONNECTED
NORMALLY OPEN WHITE/BLUE
COMMON BLUE/BLACK
NORMALLY CLOSED WHITE/BROWN
V
TO FLAME SENSOR ELECTRODE RED
GROUND GREEN
V
TO FLAME SENSOR
BLACK
WHITE
V
PNEG-286