Carrier WeatherMaster 48HC04 Service And Maintenance Instructions page 36

ON/OFF
SWITCH
NPT INLET
INLET
PRESSURE TAP
NPT OUTLET
SINGLE STAGE
IGNITER AND SENSOR LOCATIONS
(BRACKET HEAT COVER NOT SHOWN FOR CLARITY)
Fig. 58 — Spark Adjustment (Size 14)
REGULATOR
COVER SCREW
PLASTIC ADJUST
SCREW
REGULATOR SPRING
NPT INLET
(PROPANE - WHITE
NATURAL - SILVER)
GAS PRESSURE PRESSURE TAP
REGULATOR
ADJUSTMENT
MANIFOLD
PRESSURE TAP
Fig. 59 — Typical Gas Valves
36
5 CELL
50TM400735
6 CELL
50TM400484
8 CELL
50TM400485
10 CELL
50TM400439
ON/OFF
SWITCH
INLET
NPT OUTLET
2 STAGE
0.130
0.181
REGULATOR
COVER SCREW (2)
PLASTIC ADJUST
SCREW (2)
REGULATOR SPRING (2)
(PROPANE - WHITE
NATURAL - SILVER)
LOW STAGE
GAS PRESSURE
REGULATOR
ADJUSTMENT
MANIFOLD
PRESSURE TAP