28
!
!
!
Step 5. The Gas Control Systems
WARNING: THIS UNIT IS NOT FOR USE WITH
SOLID FUEL.
Two types of gas control systems are used with these models:
Standing Pilot Ignition
and
Intermittent Pilot Ignition (IPI).
Standing Pilot Ignition System
This system includes millivolt control valve, standing pilot,
thermopile/thermocouple flame sensor, and piezo ignitor.
WARNING: 110-120 VAC MUST NEVER BE
CONNECTED TO A CONTROL VALVE IN A
MILLIVOLT SYSTEM.
Intermittent Pilot Ignition (IPI) System
This system includes a 3V control valve, electronic module
and intermittent pilot.
WARNING: CONTINUOUS 110-120 VAC SER-
VICE MUST BE WIRED DIRECTLY TO THE FIRE-
PLACE JUNCTION BOX.
Figure 33. Gas Controls Systems
INTERMITTENT PILOT IGNITION
STANDING PILOT
FLAME SENSOR
ROD
