Step 5 The Gas Control Systems - Heat-N-Glo 8000TRD Installer's Manual

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: 1 10-120 V AC MUST NEVER BE
!
CONNECTED T O 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 1 10-120 V AC SER-
!
VICE MUST BE WIRED DIRECTLY TO THE FIRE-
PLACE JUNCTION BOX.
STANDING PILOT
INTERMITTENT PILOT IGNITION
Figure 33. Gas Controls Systems
28
FLAME SENSOR
ROD