Carrier 38MFC - Install All Power, Interconnecting Wiring, and Piping to Indoor Unit; Remote Control Installation

10
INSTALL ALL POWER, INTERCONNECTING
WIRING, AND PIPING TO INDOOR UNIT
1. Run interconnecting piping and wiring from outdoor unit to
indoor unit.
2. Run interconnecting cable through hole in wall (outside to
inside).
3. Lift indoor unit into position and route piping and drain
through hole in wall (inside to outside). Fit interconnecting
wiring into back side of indoor unit.
4. Put upper claw at back of indoor unit on upper hook of
Mounting Plate, move indoor unit from side to side to see
that it is securely hooked.
5. Open front cover of indoor unit and remove field wiring ter-
minal block cover.
6. Pull interconnecting wire up from back of indoor unit and
position in close to the terminal block on indoor unit.
7. Push lower part of indoor unit up on wall, then move in-
door unit from side to side, up and down to check if it is
hooked securely. (See Fig. 13.)
Upper hook
Lower hoo
k
A07347a
Fig. 13 --- Indoor Unit Installation
8. Connect wiring from outdoor unit per connection diagram
(see Fig. 12 and Fig. 16).
9. Replace field wiring cover and close front cover of indoor
unit.
10. Connect refrigerant piping and drain line outside of indoor
unit. Refer to Fig. 10 for proper installation of flare
connections. Complete pipe insulation at flare connection
then fasten piping and wiring to the wall as required. Com-
pletely seal the hole in the wall.
11. Connect the drain line. The drain line must not have a trap
anywhere in its length, must pitch downwards, and must be
insulated up to the outside wall. See Fig. 14.
Proper Do not put drain end into waterDo not form a rise
A14351
Fig. 14 --- Proper Drain Hose Installation
NOTE: For proper orientation of the refrigerant piping, electrical
cable and drain lines, refer to Fig. 15.
Interconnecting
Wiring
Drain Piping
Refrigerant Piping
Tape
Indoor unit
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
..
.
A07346
Fig. 15 --- Proper Orientation
NOTE: For applications where gravity cannot be used for
drainage, a condensate pump accessory is available. Consult the
condensate pump Installation Instructions for more information.
REMOTE CONTROL INSTALLATION
Mounting Bracket (if installed on the wall)
1. Use the two screws supplied with control to attach Mount-
ing Bracket to wall in location selected by customer and
within operating range.
2. Install batteries in Remote Control.
3. Place Remote Control into remote control Mounting Brack-
et.
4. For remote control operation, refer to the unit Owner’s
Manual.
LNS L1 L2 S
9K and 12K 115V 12K to 22K 208-230V
Electrical box
cover
Front Panel
A14352
Fig. 16 --- Contro l a nd Power Wiring on Indoor Unit