Carrier PF4MNA Installation Instructions Manual page 4

PF4MNA: Installation Instructions
3. Remove coil assembly.
4. Lay fan coil on its right side and reinstall coil assembly with
condensate pan down (Fig.
5. Attach coil to casing flange using previously removed coil
mounting screw.
6. Make sure pan cap in fitting door is properly seated on fitting door
to retain low air leak rating of the unit.
7. Add gaskets from kit - KFAHD.
8. Align holes with tubing connections and condensate pan
connections. Reinstall access panels and fitting panel.
9. Make sure liquid and suction tube grommets are in place to prevent
air leaks and cabinet sweating. Install grommets after brazing.
Horizontal Right Conversion of Units with A-Coils
1. Remove blower and coil access panels.
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 support rail
on left side of unit and reinstall on coil support rail on right side of
unit. (Fig. 7)
6. Convert air seal assembly for horizontal right.
a. Remove air seal assembly from coil by removing 4 screws.
(Fig. 5)
b. Remove air splitter (B) from coil seal assembly by removing 3
screws. (Fig. 6 inset)
c. Remove filler plate (A) and install air splitter (B) in place of filler
plate.
d. Install filler plate (A) as shown in horizontal right application.
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 left side of the coil, access
panel, and fitting panel.
11. Remove insulation knockouts on right side of coil access panel.
12. Remove 2 oval coil access panel plugs and reinstall into holes on
left side of coil access panel and fitting panel.
13. Install condensate pan fitting caps (from Step 10) in right side of
coil door making sure that cap snaps and seats cleanly on back side
of the coil door. Make sure no insulation interferes with seating of
cap.
14. Reinstall access and fitting panels, aligning holes with tubing
connections and condensate pan connections. Be sure to reinstall
metal clip between fitting panel and vertical condensate pan.
15. Make sure liquid and suction tube grommets are in place to prevent
air leaks and cabinet sweating.
Manufactured and Mobile Home Housing Applications
1. Fan coil unit must be secured to the structure using field-supplied
hardware.
2. Allow a minimum of 24-in (610 mm) clearance from access panels.
3. Recommended method of securing for typical applications:
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
4)
(Fig. 5)
2 SCREWS
REAR CORNER
BRACKET
Fig. 6 – Removal of Brackets on Modular Unit
DRAIN PAN
SUPPORT BRACKET
Fig. 7 – Drain Pan Support Bracket
4" (102mm) MAX
Fig. 8 – Mobile Home or Manufactured Housing Applications
4
BLOWER BOX
2 SCREWS
2 SCREWS
COIL BOX
4" (102mm) MAX
SECURE FAN COIL TO STRUCTURE
UNIT AWAY FROM WALL
PIPE STRAP
(TYPICAL BOTH SIDES)
OR
UNIT AGAINST WALL
.125" (3mm)
MOUNTING BRACKET
(TYPICAL BOTH SIDES)
DOWN FLOW
BASE KIT (KFACB)
SECURE UNIT TO FLOOR
ANGLE BRACKET OR PIPE STRAP
A95293
A07571
A07567