WARNING
If removal of the blower assembly
is required, all disconnect switches
supplying power to the equipment
must be de-energized and locked
(if not in sight of unit) so the field
power wires can be safely removed
from the blower assembly. Failure
to do so can cause electrical shock
resulting in personal injury or death.
(SEE SECTION 7.5.5: BLOWER
WHEEL REPLACEMENT)
1.0 SAFETY INFORMATION
WARNING
Because of possible damage
to equipment or personal injury,
installation, service, and mainte-
nance should be performed by a
trained, qualified service personnel.
Consumer service is recommend-
ed only for filter cleaning/replace-
ment. Never operate the unit with
the access panels removed.
!
WARNING
(SEE WARNINGS IN REGARD TO DUCTWORK)
Do not install this unit in manufactured (mobile) homes. Improper installation is
more likely in manufactured housing due to ductwork material, size, location,
and arrangement. Installations in manufactured housing can cause a fire result-
ing in property damage, personal injury or death.
EXCEPTION:
Manufactured housing installations are approved only with documen-
tation by a recognized inspection authority that the installation has been made in
compliance with the instructions and all warnings have been observed.
!
WARNING
These instructions are intended as an aid to qualified, licensed service per-
sonnel for proper installation, adjustment and operation of this unit. Read
these instructions thoroughly before attempting installation or operation.
Failure to follow these instructions may result in improper installation, adjust-
ment, service or maintenance possibly resulting in fire, electrical shock, prop-
erty damage, personal injury or death.
!
!
WARNING
Disconnect all power to unit before
installing or servicing. More than
one disconnect switch may be
required to de-energize the equip-
ment. Hazardous voltage can cause
severe personal injury or death.
(SEE SECTION 3.12:
ELECTRICAL WIRING)
!
WARNING
Duct leaks can create an unbalanced system and draw pollutants such as
dirt, dust, fumes and odors into the home causing property damage. Fumes
and odors from toxic, volatile or flammable chemicals, as well as automo-
bile exhaust and carbon monoxide (CO), can be drawn into the living space
through leaking ducts and unbalanced duct systems causing personal injury
or death (see Figure 1).
• If air-moving equipment or ductwork is located in garages or off-garage stor-
age areas - all joints, seams, and openings in the equipment and duct must
be sealed to limit the migration of toxic fumes and odors including carbon
monoxide from migrating into the living space.
• If air-moving equipment or ductwork is located in spaces containing fuel
burning appliances such as water heaters or boilers - all joints, seams, and
openings in the equipment and duct must also be sealed to prevent depres-
surization of the space and possible migration of combustion byproducts
including carbon monoxide into the living space.
!
3
5.0
COMPONENTS & CONTROLS ................................................................... 27
5.1
Blower Motor ....................................................................................... 27
5.2
Motor Run Capacitor ............................................................................ 27
5.3
Blower Control ...................................................................................... 27
5.4
Blower ................................................................................................... 28
5.5
Transformer .......................................................................................... 28
5.6
Indoor Coil ............................................................................................ 28
6.0
ACCESSORIES & KITS ............................................................................... 29
6.1
Electric Resistance Heater Kits .............................................................. 29
6.2
Drain Pan Overflow Switch Kit .............................................................. 29
6.3
Bottom Return Conversion Kit .............................................................. 30
6.4
Louvered Cabinet Grille ........................................................................ 30
6.5
Decorative Wall Grille ........................................................................... 31
7.0
MAINTENANCE ....................................................................................... 32
7.1
Air-Filter ................................................................................................ 32
7.2
Indoor Coil, Drain Pan, Drain Line ......................................................... 32
7.3
Blower Motor & Wheel ........................................................................ 32
7.4
Motor Lubrication ................................................................................. 32
7.5
Blower Assembly, Motor, & Blower Wheel Removal & Replacement . 32
7.5.1
Small Cabinet Blower Assembly Removal Procedure ................ 33
7.5.2
Large Cabinet Blower Assembly Removal Procedure ................ 34
7.5.3
Large Cabinet Blower Motor Only Removal Procedure ............ 37
7.5.4
Motor Replacement .................................................................. 39
7.5.5
Blower Wheel Replacement ...................................................... 39
7.6
Replacement Parts ................................................................................ 39
8.0
DIAGNOSTICS .......................................................................................... 40
9.0
WIRING DIAGRAMS ................................................................................. 41
9.1
(-)F1P (3-5kW Electric Heat) ................................................................. 41
9.2
(-)F1P (8-10kW Electric Heat) ............................................................... 42
9.3
(-)F1T (3-5kW Electric Heat) ................................................................. 43
9.4
(-)F1T (8-10kW Electric Heat) ............................................................... 44
