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NS SPLIT INSTALLATION MANUAL
Heating Cycle Analysis
COOLING TXV - ACTIVE
RIGHT TO LEFT
ClgTXV
Lineset
length
Measure liquid line
temperature and
pressure here in
both heating and
cooling modes
COAX
HEATING TXV - ACTIVE LEFT TO RIGHT
HtgTXV
Measure suction temperature
here at TXV bulb in heating modes.
Suct PSI____
Suct sat temp____
Volts ____
Amps ____
EWT ____
LWT ____
Suct temp____
Super heat____
Discharge PSI____
Disch. sat temp____
Liquid temp____
Sub cooling____
Bi-flow
filter/drier
Air
Coi
l
Suctio
n
Discharge
Com
p
De
sup
er-
he
ate
r
Measure suction
temperature here
at TXV bulb in
cooling modes.
Cooling Cycle Analysis
COOLING TXV - ACTIVE
RIGHT TO LEFT
ClgTXV
Measure liquid line
temperature and
pressure here in
both heating and
cooling modes
COAX
HEATING TXV-ACTIVE LEFT TO RIGHT
HtgTXV
Measure suction temperature
here at TXV bulb in heating modes.
Suct PSI ____
Suct sat temp ____
Volts ____
Amps ____
EWT ____
LWT ____
Suct temp ____
Super heat ____
Discharge PSI ____
Disch. sat temp ____
Liquid temp ____
Sub cooling ____
Bi-flow
filter/drier
Air
Coi
l
Suctio
n
Discharge
Com
p
De
sup
er-
he
ate
r
Measure suction
temperature here
at TXV bulb in
cooling modes.
Note: DO NOT hook up pressure gauges unless there appears to be a performance problem.
Lineset
length
Unit Startup/Troubleshooting