Air Pressure Switch - L.B.White Premier TS040 Manual Del Propietario Y Instrucciones

FIG. 16
Motor Mount Plate
Motor
Premier 40/80 - 3/16 IN / 4.7 mm
Premier 170 - 1/8 IN / 3.2 mm

Air Pressure Switch

The air pressure switch is located on the cold air hous-
ing internal to the heater. It must work properly to
allow an ignition cycle. If the air pressure switch
contacts are closed before the ignition control starts the
fan motor, or do not close on a call for heat after the fan
motor starts, ignition will not occur . See Fig. 17.
To service:
-- Disconnect the 2 wires attached to the switch.
Unhook the air pressure line attached to the - (NEG)
port. Remove the 2 screws holding the switch to the
cold air housing.
-- Reassemble by reversing above steps.
FIG. 17
Negative
Port (-)
Air Pressure
Switch
Fan Wheel
Clearance
Owner's Manual • Premier Ductable Heater
Premier Ductable Heater
Igniter and Flame
Sensor Assembly
The igniter is of local sense design, meaning it also
serves to sense burner flame. For igniter/flame sensor
location see FIG.18 for Premier 40 and FIG. 19 for
Premier 80/170.
1. Disconnect the high voltage cable from the igniter
assembly.
2. Remove the 2 screws securing the igniter assembly to
either the burner or the heat chamber
• The igniter and ground rod should be cleaned to
maintain proper ignition.
-- Use steel wool or emery cloth.
-- Rub briskly to remove buildup of dust, dirt, and oxide.
• Check the igniter's ceramic base for cracks. -- Replace
the igniter if cracks are found.
Igniter
FIG. 18
FIG. 19
1/8 in. (3.18mm) to
3/16 in. (4.78mm)
GAP
Igniter
Cable
19
3/16 in. (4.78 mm) GAP
Igniter