Page 10
506109−01 10/08
STRAP LIQUID LINE TO
SUCTION LINE
METAL
SLEEVE
AUTOMOTIVE
MUFFLER-TYPE HANGER
WALL
STUD
SUCTION LINE − WRAPPED IN ARMAFLEX
LIQUID LINE
ANCHORED HEAVY
NYLON WIRE TIE
STRAP LIQUID LINE
TO SUCTION LINE
WALL
STUD
LIQUID LINE
METAL SLEEVE
SUCTION LINE − WRAPPED IN
ARMAFLEX
Figure 17. Refrigerant Line Set: 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 18. Brazing Connections
Brazing Connections
Use the following procedure to braze the line set to the new
air conditioner unit. Figure 18 is provided as a general
guide for preparing to braze the line set to the air
conditioner unit.
CAUTION
Brazing alloys and flux contain materials which are
hazardous to your health.
Avoid breathing vapors or fumes from brazing
operations. Perform operations only in well
ventilated areas.
Wear gloves and protective goggles or face shield
to protect against burns.
Wash hands with soap and water after handling
brazing alloys and flux.
WARNING
Danger of fire. Bleeding the
refrigerant charge from only the high
side may result in the low side shell
and suction tubing being
pressurized. Application of a brazing
torch while pressurized may result in
ignition of the refrigerant and oil
mixture − check the high and low
pressures before un−brazing.
WARNING
When using a high pressure gas such
as dry nitrogen to pressurize a
refrigeration or air conditioning
system, use a regulator that can
control the pressure down to 1 or 2
psig (6.9 to 13.8 kPa).
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