Page 9
XC16 SERIES
ANCHORED HEAVY NYLON
WIRE TIE OR AUTOMOTIVE
MUFFLER-TYPE HANGER
STRAP LIQUID LINE
TO SUCTION LINE
WALL
STUD
LIQUID LINE
METAL SLEEVE
SUCTION LINE − WRAPPED
IN ARMAFLEX
AUTOMOTIVE
MUFFLER-TYPE HANGER
Figure 15. Refrigerant Line Set: Transition
from Vertical to Horizontal
METAL
SLEEVE
STRAPPING MATERIAL
(AROUND SUCTION
LINE ONLY)
TAPE OR
WIRE TIE
WIRE TIE
(AROUND
SUCTION LINE
ONLY)
FLOOR JOIST OR
ROOF RAFTER
TAPE OR
WIRE TIE
TO HANG LINE SET FROM JOIST OR
RAFTER, USE EITHER METAL STRAPPING
MATERIAL OR ANCHORED HEAVY NYLON
WIRE TIES.
8 FEET
8 FEET
STRAP THE SUCTION LINE TO
THE JOIST OR RAFTER AT 8 FEET
INTERVALS THEN STRAP THE
LIQUID LINE TO THE SUCTION
LINE.
FLOOR JOIST OR
ROOF RAFTER
Figure 16. Refrigerant Line Set: Installing
Horizontal Runs
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 17. Brazing Connections
Brazing Connections
Use the following procedure to braze the line set to the new
air conditioner unit. Figure 17 on page 9 is provided as a
general guide for preparing to braze the line set to the air
conditioner unit.
1. Cut ends of the refrigerant lines square (free from
nicks or dents). Debur the ends. The pipe must remain
round, do not pinch end of the line.
WARNING
Polyol ester (POE) oils used with HFC−410A
refrigerant absorb moisture very quickly. It is very
important that the refrigerant system be kept
closed as much as possible. DO NOT remove line
set caps or service valve stub caps until you are
ready to make connections.
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