Refrigerant Connections - Carrier 42XPP Serie Manual De Instalación, Operación Y Mantenimiento

Installation
marking the wall penetration for the connection piping
Rear piping
• It is best for the piping to go through the wall behind
the unit, so that the unit hides the pipes.
• For this method of installation, make a 65 mm
diameter hole in the wall at point A (See fig. 7-8).
• Drill a 65 mm diameter hole at a slope so that the
outside end is lower than the inside end.
This will ensure good drainage (See fig. 9).
Routing the drain hose and refrigerant piping
• Tie together the refrigerant pipe k, the drain hose l,
and the electrical connection cord m (See fig. 11).
• Route the refrigerant piping in the required direction,
and bind the drain hose and the electrical connection
Installing the indoor unit body to the wall hanging bracket
• Pass the pipes through the wall sleeve and then
hook the indoor unit body on top of the wall hanging
bracket.
• For left-hand piping, hang the unit on top of the wall
hanging bracket and incline the unit using a tool such
as a screwdriver set between the middle area of the
body and bottom right of the wall hanging bracket.
Connecting the pipe can be done more easily if the
unit is inclined.
• Fix the bottom part of the unit to the wall hanging
bracket, by pushing it carefully unit the two bracket
hooks fit into the marked places at the base of the unit
Check
• Next, check the unit drain system by pouring some
water into the unit drain pan and ensuring that it flows
freely through the drain hose and that there is no
leakage from any other part (See fig. 13).

Refrigerant connections

For piping dimensions and refrigerant connection
process refer to the outdoor unit and to the refrigerant
3 42XPP
All manuals and user guides at all-guides.com
• Cut the wall sleeve to match the wall thickness and
pass the pipe through the hole.
Side or bottom piping
• Remove the knock-out in the unit and pass the pipes
through the wall.
• The pipe should slope downward and away from the
unit to ensure good drainage.
cord together with fastening tape.
The drain hose should be at the bottom (See fig. 10).
• For left-hand piping, fit the pipes and the wiring into
the recess at the back of the unit.
(a click will be heard).
nOTE:
Use of additional screws
After installation, if there is a significant gap between the
unit and wall, it can be adjusted by securing the body to the
wall hanging bracket using 2 screws (See fig. 14). Screw
holes can be only seen after removing the frame grille.
connections manual.
Do not crush or kink the indoor piping.
Avoid sharp bends with a bend radius of less
than 100 mm.
Do not bend the same part of the pipe too often.
Do not remove the flare nut from the indoor unit
pipe until the piping is connected.
The recommended bending of the drain hose is
shown (See fig. 12).