356486-UUM-F-0209
2
Johnson Controls Unitary Products
SECTION II: INSTRUCTIONS FOR
EXAMINING THE FURNACE
INSTALLATION
It is the owner’s responsibility to ensure that an annual inspection of the
entire heating portion of the unit is made by a qualified service agency.
Examine the furnace as outlined below in steps “1 - 8” before each
heating season. Use Figures 1 - 6 for visual reference.
FIRE OR EXPLOSION HAZARD
This furnace is designed and approved for use with Natural Gas
and (LP) Propane Gas ONLY. DO NOT BURN ANY LIQUID FUEL
OR SOLID FUEL IN THIS FURNACE.
Burning any unapproved fuel will result in damage to the furnace
heat exchanger, which could result in Fire, Personal Injury, and/or
Property Damage.
FIGURE 1:
Component Location - 80% Single & Two Stage Models
FIGURE 2:
Component Location - 95% Single & 96% Two Stage Models
Vent Pipe
Pressure
Switch
Silicone
Tube
Rollout
Safety Switch
Gas Valve
Flame
Sensor
Induced Draft
Assembly
Induced
Draft Motor
Limit Switch
Ignitor
Manifold
Pipe
Safety
Door Switch
Control
Board
Flue
Collar
Electrical
Junction Box
Blower
Transformer
Capacitor
(Not used on
all models)
Vent Pipe
Pressure
Switch
Manifold
Pipe
Rollout
Safety Switch
Gas Valve
Flame Sensor
Manifold Draft
Assembly
Limit Switch
Ignitor
Safety
Door Switch
Control
Board
Electrical
Junction Box
Blower
Transformer
Capacitor
Condensate
Pan
Silicone Tube
(Not used on
all models)
FIGURE 3:
Component Location - 80% Modulating PSC Models
FIGURE 4:
Component Location - 80% Modulating ECM Models
Pressure
Sensor
Silicone
Tube
Rollout
Safety Switch
Gas Valve
Flame
Sensor
Induced Draft
Assembly
Induced
Draft Motor
Limit Switch
Ignitor
Manifold
Pipe
Safety
Door Switch
Control
Board
Flue
Collar
Electrical
Junction Box
Blower
Transformer
Capacitor
PSC MOTOR
Pressure
Switch
Pressure
Switch
Pressure
Sensor
Silicone
Tube
Rollout
Safety Switch
Gas Valve
Flame
Sensor
Induced Draft
Assembly
Induced
Draft Motor
Limit Switch
Ignitor
Manifold
Pipe
Safety
Door Switch
Control
Board
Flue
Collar
Electrical
Junction Box
Blower
Transformer
Power Factor
Choke
ECM MOTOR
(Not used on
all models)
