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505328M 06/09
NOTE − SIMILAR
INSTALLATION
PRACTICES SHOULD BE
USED IF LINE SET IS TO
BE INSTALLED ON
EXTERIOR OF OUTSIDE
WALL.
PVC
PIPE
FIBERGLASS
INSULATION
CAULK
OUTSIDE
WALL
VAPOR LINE WRAPPED
WITH ARMAFLEX
LIQUID LINE
IMPORTANT!
REFRIGERANT LINES
MUST NOT CONTACT
STRUCTURE.
OUTSIDE WALL
LIQUID LINE
VAPOR LINE
IMPORTANT -
REFRIGERANT LINES MUST
NOT CONTACT WALL.
WOOD BLOCK
BETWEEN STUDS
STRAP
SLEEVE
WOOD BLOCK
STRAP
SLEEVE
WIRE TIE
WIRE TIE
WIRE TIE
INSIDE WALL
Figure 17. Refrigerant Line Sets: Installing Vertical
Runs (New Construction Shown)
STRAP LIQUID LINE
TO VAPOR LINE
METAL SLEEVE
AUTOMOTIVE
MUFFLER-TYPE HANGER
WALL
STUD
VAPOR LINE WRAPPED
IN ARMAFLEX
LIQUID
LINE
ANCHORED HEAVY
NYLON WIRE TIE
STRAP LIQUID LINE
TO VAPOR LINE
WALL
STUD
LIQUID LINE
METAL SLEEVE
VAPOR LINE − WRAPPED
IN ARMAFLEX
Figure 18. Refrigerant Line Sets: Transition from
Vertical to Horizontal
2
3
4
5
6
outdoor
UNIT
LIQUID LINE
SUCTION LINE
SERVICE
VALVE
SERVICE
VALVE
CUT AND DEBUR
ATTACH
GAUGES
WRAP
SERVICE
VALVE
FLOW NITROGEN
NITROGEN
BRAZE LINE SET
1
INSTALL CORE ONLY FOR
BOTH SERVICE PORTS after they
have coolED.
7
INDOOR UNIT
REMOVE CAP AND CORE FROM
BOTH LIQUID AND SUCTION
SERVICE PORTS
SERVICE PORT MUST BE
OPEN TO ALLOW EXIT
POINT FOR NITROGEN
Figure 19. Brazing Connections
