Convertible Natural/Liquid Propane Gas

Adjustable Regulator

Inlet/Outlet Screen

Pilot Port Plugged for Hot Surface and Direct Spark Ignition Systems, Remove Plug for Intermittent/Proven Pilot Systems

Electric On-Off Switch and Convenient Quick-Connect Coil Terminals

Tamper Resistant Screw and Controlled Gasket Compression to Withstand High Inlet Pressures

Mounting Position Upright or 0 to 90 Degree from Upright in any Direction

Convertible Natural/Liquid Propane Gas

Adjustable Regulator

Inlet/Outlet Screen

Pilot Port Plugged for Hot Surface and Direct Spark Ignition Systems, Remove Plug for Intermittent/Proven Pilot Systems

Electric On-Off Switch and Convenient Quick-Connect Coil Terminals

Tamper Resistant Screw and Controlled Gasket Compression to Withstand High Inlet Pressures

Mounting Position Upright or 0 to 90 Degree from Upright in any Direction

Line Interrupter Styles Use Standard 30 Millivolt Thermocouples

Models with setpoint adjustment

Models with occupied/unoccupied override (bypass) with LED

Models with 3-position (auto/0/1) or 5-position (auto/0/1/2/3 speed) fan switch

LONWORKS network jack on all models except the TR21 and TR21-A models

Solid State Thermistor Element Provides Accurate Sensing of Temperature Changes

Five different outlet pressure ranges

Angled or straight configuration

Installs in numerous mounting positions

Delivers precise pressure control

Five different outlet pressure ranges

Angled or straight configuration

Installs in numerous mounting positions

Delivers precise pressure control

Five different outlet pressure ranges

Angled or straight configuration

Installs in numerous mounting positions

Delivers precise pressure control

2-Stage Application

PSC/VS or ECMX Blower Motor

120 Volt HSI Ignition

Tri-Color Diagnostics LED

Flame Current Test Pad Easy On-Board Checkout

Pushbutton Self-Test

Dipswitch Fan only Speed Set Up

Factory Standard Safety Timing and Adjustable Fan Delay Option

Replaceable Automotive Style Fuse