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Payne PF4MNA - Horizontal Conversion Procedures; A-Coil Horizontal Right Conversion; Slope Coil Horizontal Right Conversion

Payne PF4MNA
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3
NOTE: Modular units can be disassembled and components
moved separately to installation area for reassembly. This process
accommodates small scuttle holes and limiting entrances to
installation sites. (See Fig. 4.)
2 SCREWS
2 SCREWS
REAR CORNER
BRACKET
BLOWER BOX
COIL BOX
2 SCREWS
A95293
Fig. 4 -- Removal of Brackets on Modular Units
Horizontal Right Conversion of Units With Slope Coils
NOTE: Gasket kit number KFAHD0101SLP is required for
horizontal slope coil conversion to maintain low air leak/low sweat
performance.
1. Remove blower and coil access panel and fitting panel. (See
Fig. 5.)
2. Remove coil mounting screw securing coil assembly to
right side casing flange.
3. Remove coil assembly.
4. Lay fan coil unit on its right side and reinstall coil assembly
with condensate pan down. (See Fig. 5.)
5. Attach coil to casing flange using coil mounting screw pre-
viously removed.
6. Make sure the pan cap in the fitting door is properly seated
on the fitting door to retain the low air leak rating of the
unit.
7. Add gaskets from kit KFAHD per kit instructions.
8. Align holes with tubing connections and condensate pan
connections, and reinstall access panels and fitting panel.
Make sure liquid and suction tube grommets are in place to prevent
air leaks and cabinet sweating. Install after brazing.
COIL MOUNTING
SCREW
BLOWER
ASSEMBLY
REFRIGERANT
CONNECTIONS
SECONDARY DRAIN
PRIMARY DRAIN
DRAINPAN
SLOPE COIL
SKI
COIL
SUPPORT
RAIL
A03001
Fig. 5 -- Conversion for Horizontal Right Applications Using a
Slope Coil
Horizontal Right Conversion of Units With A--Coils
1. Remove blower and coil access panels. (See Fig. 6.)
COIL
SUPPORT
RAIL
COIL
BRACKET
DRAIN PAN
SUPPORT
BRACKET
COIL
SUPPORT
RAIL
COIL
BRACKET
HORIZONTAL
DRAIN PAN
PRIMARY DRAIN
HORIZONTAL RIGHT
SECONDARY DRAIN
HORIZONTAL RIGHT
REFRIGERANT
CONNECTIONS
AIR SEAL
ASSEMBLY
A
B
C
HORIZONTAL
RIGHT
APPLICATION
A00071
Fig. 6 -- Conversion for Horizontal Right Applications Using
A--Coil
2. Remove metal clip securing fitting panel to condensate pan.
Remove fitting panel.
3. Remove 2 snap--in clips securing A--coil in unit.
4. Slide coil and pan assembly out of unit.
5. Remove horizontal drain pan support bracket from coil sup-
port rail on left side of unit and reinstall on coil support rail
on right side of unit. (See Fig. 7.)
DRAIN PAN
DRAIN PAN
SUPPORT BRACKET
SUPPORT BRACKET
A07571
Fig. 7 -- Drain Pan Support Bracket
6. Convert air--seal assembly for horizontal right.
a. Remove air--seal assembly from coil by removing 4
screws.(SeeFig.6.)
b. Remove air splitter (B) from coil seal assembly by re-
moving 3 screws. (See Fig. 3--factory shipped inset.)
c. Remove filter plate (A) and install air splitter (B) in
place of filter plate.
d. Install filter plate (A) as shown in horizontal right ap-
plication.
e. Remove condensate troughs (C) and install on opposite
tube sheets.
f. Install hose onto plastic spout.
7. Install horizontal pan on right side of coil assembly.
8. Slide coil assembly into casing. Be sure coil bracket on each
corner of vertical pan engages coil support rails.
9. Reinstall 2 snap--in clips to correctly position and secure
coil assembly in unit. Be sure clip with large offsets is used
on right side of unit to secure horizontal pan.
10. Remove two oval fitting caps from the left side of the coil
door and fitting panel.
PF4MNA

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