ICP MF08B1500A1, MF16J2200A1, MF20N2600A1 Installation Guide
INSTALLATION
INSTRUCTIONS
Models
MF08B1500A
MF12F1900A
MF16J2200A
MF20N2600A
With
AMF001NHA
Accessory No Heat Kit
Use ONLY factory listed electric heaters.
Modular Blower
(Electric Furnace)
Safety Labeling and Signal Words
Danger, Warning and Caution
The signal words DANGER, WARNING and CAUTION
are used to identify levels of hazard seriousness. The
signal word DANGER is only used on product labels to
signify an immediate hazard. The signal words WARN-
ING and CAUTION will be used on product labels and
throughout this manual and other manuals that may ap-
ply to the product.
DANGER - immediate hazards which WILL result in se-
vere personal injury or death.
WARNING - Hazards or unsafe practices which
COULD result in severe personal injury or death.
CAUTION - Hazards or unsafe practices which COULD
result in minor personal injury or product or property
damage.
Safety Labeling and Signal Words Cov
General Information / Installation ............ 2
Vertical Installations ........................ 2
Horizontal Installations ..................... 3
Condensate Drain .......................... 5
Refrigerant Orifice and Lines ................ 5
Electrical Wiring ............................ 6
Checks and Maintenance ................... 7
Blower Performance ........................ 8
Signal Words in Manuals
The signal word WARNING is used throughout this
manual in the following manner:
The signal word CAUTION is used throughout this
manual in the following manner:
CAUTION
Product Labeling
Signal words are used in combination with colors and/or
pictures on product labels.
Printed in U.S.A.
442 01 2202 02
June 2002
_ Installation Instructions Modular Blower I
FigUre ! [ Nominal Installation Dimensions and Clearances
LowVoltage A\
Entrance
/
15-1/2'' (2-2 1/2Ton) MF08
19-1/8'' (3-3 1/2Ton) MF12
22-3/4" (4 Ton) MF16
26-3/8" (5 Ton) MF20
14-1/2" (2-2 1/2 Ton) MF08
17-3/4" (3- 31/2 Ton) MF12
21-3/8" (4 Ton) MF16
25" (5 Ton) MF20
20
Bottom Return Air Opening
14-1/4 '' x 20" (1 1/2-2 1/2 Ton)
18" x 20" (3-3 1/2 Ton)
21-3/8" x 20" (4 Ton)
25-1/4" x 20 (5 Ton)
38-20-17
CLEARANCES
NO HEATERS
All Sides .................................. 0"
From Supply Duct .......................... 0"
Recommended Service From Front .......... 20"
(Service for blower, filter if installed)
WITH HEATERS
All Sides .................................. 0"
From First Three
Feet of Supply Duct to Combustibles ........ 1"
From Duct after Three Feet ................. 0"
Recommended Service From Front .......... 20"
(Service for blower, heaters if installed)
Fire Hazard
When heaters are installed maintain clear-
ances from combustible materials as speci-
fied on unit rating plate. Do not use plastic
lined or combustible flexible ducting within 36
inches of the supply end of the air handler.
Failure to do so can result in fire, property
damage, personal injury and/or death.
General Information
Installation or repairs made by unqualified persons can
result in hazards to you and others. Installation MUST
conform with local building codes and with the
National Electrical Code NFPA70 current edition.
The information contained in this manual is intended
for use by a qualified service technician familiar with
safety procedures and equipped with the proper tools
and test instruments.
Failure to carefully read and follow all instructions in
this manual can result in equipment malfunction,
property damage, personal injury and/or death.
The blower cabinet may be used for cooling or heat pump
operation with or without electric heat. Installations without
electric heat, require a No Heat Kit. The cabinet can be installed in
an upflow, downfiow or horizontal position (Figure 3, 4).
Location
Select the best position which suits the installation site conditions.
The location should provide adequate structural support, space in
the front of the unitfor service access, clearance for return air and
supply duct connections, space for refrigerant piping connections
and condensate drain line connections. If heaters are being
installed make sure adequate clearance is maintained from
supply ductwork, See Clearances and Warning in Figure 1.
Ifthe unit is located in an area of high humidity, nuisance sweating
of casing may occur. On these installations a wrap of 2" fiberglass
insulation with a vapor barrier should be used.
Modular Blower
Installation Instructions /
Installations
The unit is ready to install in any position without modifications.
Refer to the coil instructions for information on drain pan
configurations etc. Make sure coil is set up properly for desired
position of blower cabinet.
Coil must be secured to blower cabinet with the three tabs that are
part of the blower cabinet base. Bend the tabs out from the bottom
so they fit over the coi! cabinet.
Position coil cabinet in relation to the blower so they wil! be correct
for desired application.
For upflow and horizontal applications apply foam seal strip
around top of coil cabinet. For downflow application apply foam
seal strip around bottom of coil cabinet. Set blower on top of coil
cabinet so they are flush. Secure cabinets together using the
three tabs on the bottom of the cabinet. Bend the tab out from the
bottom so it fits over the coil cabinet. If no pilot holes are present,
drill a hole as required for a screw.
Figule 2 I
Attach Coil to Blower Cabinet
Panels removed
for clarity only
Place seal
on top of
Coil Cabinet
around
perimeter
Bend Tabs (both sides
and back) on Bottom of
Blower Cabinet to Fit
over Coil Cabinet
FigUre 3 l
UPFLOW
POSITION
HEATER
BLOWER
Airflow Positions
DOWNFLOW
POSITION
HEA'_R
Subbase
J) \,
A'
Downflow Installations
Refer to instructions with Subbase Kit.
Non-Ducted Return Air Closet Installation
The cabinet can be installed in a closet with a false bottom to form
a return air plenum, or mounted on an open platform inside the
closet. Platform should be high enough to provide a free (open)
area for adequate return airflow into the bottom of the cabinet.
The open area can be on the front side or a combination of front
and sides, providing there is clearance on the sides between
cabinet and closet. Refer to ACCA Manual D for sizing and free
area recommendations.
NOTE: Local codes may limit application of systems without a
ducted return to single story dwellings.
Horizontal Left and Right Installations
Coil cabinets that are shipped with the horizontal drain pan
installed are set up for horizontal left hand airflow. They must have
the drain pan repositioned for right hand airflow. Refer to coil
installation manual.
CAUTION
Afield fabricated auxiliary drain pan, with a separate drain is
REQUIRED for all installations over a finished living space or
in any area that may be damaged by overflow from the main
drain pan. In some localities, local codes require an auxiliary
drain pan for ANY horizontal installation.
_ Installation Instructions
FigUre [ Airflow Positions
HORIZONTAL RIGHT POSITION
8®
HORIZONTAL LEFT POSITION
Suspended Cabinet Installation
1. The cabinet may be supported on a frame or shelf, or it may
be suspended.
2. Use metal strapping or threaded rod with angle iron
supports under the auxiliary drain pan to suspend cabinet.
These supports MUST run parallel with the length of the
cabinet (Figure 5 ).
3. Ensure that there is adequate room to remove service and
access panels after installing supporting brackets.
4. Place Styrofoam blocks in auxiliary drain pan to support
cabinet.
Modular Blower I
Duct Connections
Supply Duct
Supply duct must be attached to the outside of flange on outlet
end of unit. Flexible connectors may be used if desired. Maintain
clearances from supply duct to combustibles when heaters are
installed. See Figure 1 and unit rating plate.
Return Duct
Return duct should be attached to bottom of unit using sheet
metal screws or other fasteners.
Filter Installation
Filters must be field supplied, A remote filter grille or other means
must be provided. Refer to ACCA Manual D for remote filter
sizing.
Figure 5 Horizontal Installation
See Note
Below
Drain
Lines
Refrigerant
Lines
_Styrofoam Field-Fabricated
locks Drain Pan
Supports MUST run parallel with blower cabinet
NOTE
If increased structural strength is needed in the horizontal
position, use the two connecting plates that are shipped with the
Multipoise Coil Cabinet in place of the tabs on the bottom of the
blower.
12J
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