Refrigeration System Diagnosis
14-3
NOTE: *Unit would be able to ramp down if the unit had the BPCV valve front seated
•
•
•
•
Liquid refrigerant entering compressor
•
•
•
Restricted line on the low side
•
•
•
•
Restricted line on the high side
•
•
•
•
Restricted dehydrator
• Evaporator damper open
•
•
•
Evaporator damper stuck closed
•
Discharge service valve back seated
•
Suction service valve back seated
• •
•
•
•
•
• • Faulty three-way valve
• •
• • Faulty pilot solenoid
•
• •
•
•
Controller or sensor out of calibration
Leaky receiver tank outlet valve
• •
•
*Leaky bypass check valve
• Leaky condenser check valve
Faulty three-way condenser pressure bypass check valve
• • •
• • Modulation or ETV valve stuck closed
•
•
•
• • Hot gas bypass valve stuck open or leaking
ALL MODELS EXCEPT TCI AND SPECTRUM (Continued)
Unit operatin
g
with r
educed
heat
ing capacity/DF
Unit O
p
erating with redu
ced refrigeration capacity
Rapid cycl
ing between
C
ool
a
n
d Heat
Unit cool
s in Hea
t
a
n
d Defro
st cycle
Unit hea
ts in Refrig
eratio
n
cy
cl
e
H
igh h
ead
pressu
re
L
o
w h
ead
pressure
No head p
ressure
H
igh suction pressure
L
o
w suction
pressu
re
No suction
pressur
e
Unit
operati
ng
i
n
v
a
cuum
Receiver sight glass
emp
ty
S
u
ction line frostin
g
bac
k
Unable to pum
p
dow
n
s
y
stem
Unable to pul
l va
cuum
i
n
com
p
res
so
r
Unable to hold va
cuum
i
n
com
p
res
so
r
Noi
sy com
p
res
so
r
Unit n
o
t r
efrigerating
Unit no
t hea
ting or defrosti
ng
SYMPTO
M
POSSIBLE CAUSE
Содержание SLXi Spectrum
Страница 17: ...Safety Precautions 2 5 Warning Decals...
Страница 18: ...Safety Precautions 2 6 Warning Decals Information Decals...
Страница 74: ...Unit Description 5 30...
Страница 128: ...Controller Operation 7 28...
Страница 156: ...Electrical Maintenance 8 28...
Страница 177: ...Engine Maintenance 9 21 Integral Fuel Solenoid Components 1 Integral Fuel Solenoid 2 O ring 3 Fuel Injection Pump Groove...
Страница 234: ...Refrigeration Maintenance 10 22...
Страница 309: ...13 Mechanical Diagnosis TK 482 TK 486 and TK 486V Engines 13 2...
Страница 316: ...Mechanical Diagnosis 13 8...
Страница 322: ...Refrigeration System Diagnosis 14 6...
Страница 332: ...Single Temperature Refrigeration System Diagrams 15 10...
Страница 339: ...Multi Temperature Refrigeration System Diagrams 16 7...
Страница 340: ...Multi Temperature Refrigeration System Diagrams 16 8...
Страница 342: ...Wiring Diagrams and Wiring Schematics 17 2...