3DJH
31-5000750 Rev. 1
ATTACH THE MANIFOLD GAUGE SET FOR BRAZING LIQUID AND VAPOR LINE SERVICE VALVES
OUTDOOR
UNIT
LIQUID LINE
VAPOR LINE
LIQUID LINE SERVICE
VALVE
VAPOR LINE
SERVICE
VALVE
ATTACH
GAUGES
INDOOR
UNIT
VAPOR SERVICE PORT MUST BE OPEN
TO ALLOW EXIT POINT FOR NITROGEN
A -
Connect gauge set low pressure side to
liquid line service valve (service port).
B -
Connect gauge set center port to bottle of
nitrogen with regulator.
C -
Remove core from valve in vapor line
service port to allow nitrogen to escape.
NITROGEN
HIGH
LOW
USE REGULATOR TO FLOW
NITROGEN AT 1 TO 2 PSIG.
B
A
C
WHEN BRAZING LINE SET TO
SERVICE VALVES, POINT FLAME
AWAY FROM SERVICE VALVE.
Flow regulated nitrogen (at 1 to 2 psig) through the low-side refrigeration gauge set into the liquid line service port valve, and out of the
vapor line service port valve.
CUT AND DEBUR
CAP AND CORE REMOVAL
Cut ends of the refrigerant lines square (free from nicks or dents)
and debur the ends. The pipe must remain round. Do not crimp end
of the line.
Remove service cap and core from
both the vapor and liquid line service
ports.
1
2
LIQUID LINE SERVICE
VALVE
SERVICE
PORT
CORE
SERVICE PORT
CAP
SERVICE
PORT
CORE
SERVICE
PORT CAP
CUT AND DEBUR
LINE SET SIZE MATCHES
SERVICE VALVE CONNECTION
DO NOT CRIMP SERVICE VALVE
CONNECTOR WHEN PIPE IS
SMALLER THAN CONNECTION
3
VAPOR LINE SERVICE
VALVE
COPPER TUBE
STUB
REFRIGERANT LINE
REDUCER
SERVICE VALVE
CONNECTION
LINE SET SIZE IS SMALLER
THAN CONNECTION
Refrigerant Piping - Brazing Procedures
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NOTE
Summary of Contents for GE NS22HM
Page 7: ...3DJH 31 5000750 Rev 1 Figure 2 Component Locations NS22H24MA4 and NS22H36MA4...
Page 58: ...3DJH 31 5000750 Rev 1 24 AND 36 HP MODEL Figure 24 Wiring Diagram Unit Wiring Diagram...
Page 78: ...3DJH 31 5000750 Rev 1 24 AND 36 HP MODEL Figure 45 VAC Voltage Check...
Page 103: ...3DJH 31 5000750 Rev 1 Figure 54 NS22H24M NS22H36M Charging Label...
Page 104: ...3DJH 31 5000750 Rev 1 Figure 55 NS22H48M NS22H60M Charging Label...
Page 105: ...3DJH 31 5000750 Rev 1 Notes...
