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56
TK 56430-18-IP-EN
•
These ports accept a #4 Flare fitting, n
no
ott an ORS fitting.
Units with Oil Return Hose
•
Remove the Schrader valve from one of the service ports on the splice connector b
be
effo
orre
e attaching oil return hose.
•
Attach the oil return hose with #4 Flare fitting onto service port securely.
IIm
mp
po
orrtta
an
ntt:: Failure to remove the Schrader valve will cause the oil return system to not function, ruin the
compressor, and void your warranty.
•
Unused service port must retain the Schrader valve and cap.
Figure 51.
Remove Schrader valve and attach oil return hose.
Units with Jet Cool (Liquid Injection System)
All MAX units are equipped with a liquid injection system that requires a special orifice be installed onto the service
port located on the suction line splice connector.
•
Remove Schrader valve from the service port on splice connector and install orifice.
•
Attach the liquid injection hose with #4 Flare fitting securely. V
Ve
erriiffy
y o
on
nlly
y tth
he
e lliiq
qu
uiid
d iin
njje
eccttiio
on
n h
ho
osse
e iiss a
atttta
acch
he
ed
d tto
o
tth
hiiss o
orriiffiicce
e,, N
NO
OT
T tth
he
e o
oiill rre
ettu
urrn
n h
ho
osse
e..
IIm
mp
po
orrtta
an
ntt:: Failure to remove the Schrader valve will cause the liquid injection system to not function, ruin the
compressor, and void your warranty.
Suction Line Routing and P-Trap Formation
The P-Trap creates an oil trap in the suction line which helps ensure proper compressor lubrication. As refrigerant flows
through the P-Trap it picks up oil and carries it to the compressor ensuring proper compressor lubrication.
IIm
mp
po
orrtta
an
ntt:: It is critical that P-Trap is installed in the suction line before the roadside compressor.
1. All hose bends must maintain at least minimum bend radii with no kinks. Refer to (