56
Fig. 85 — Horizontal Unit with Modulating Gas Heat
MODULATOR VALVE
(MODULATING SYSTEMS ONLY)
AIR PRESSURE
SWITCH
FLAME ROLLOUT
SWITCH
FLAME SENSOR
HI LIMIT SWITCH
MANIFOLD
PRESSURE TAP
WIRE HARNESS
TO JB/IGNITION
CONTROL
MOTOR SUPPORT
BRACKET
DRAFT INDUCER
MOTOR
DRAFT INDUCER
ASSEMBLY
3/4” NPT GAS
INLET
CONNECTION
TWO-STAGE
GAS VALVE
SPARK IGNITER
CONDENSATE DRAIN
FITTING