Thermo King SPECTRUM TS 30 SR NAD, Руководство пользователя

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165
Refrigeration Diagnosis
Ra
pi
d
c
y
c
lin
g be
tw
ee
n Co
ol
an
d H
eat
U
n
it
co
ols
in
He
at
a
n
d
D
e
fr
o
s
t c
ycle
U
n
it
h
e
a
ts
in
R
e
fr
ig
e
ra
tio
n
c
ycle
Hi
g
h
he
ad p
res
s
u
re
Low
he
ad p
res
s
u
re
N
o
he
ad
p
re
s
s
u
re
Hi
g
h
s
u
c
ti
o
n pr
es
su
re
Low
s
u
c
ti
o
n pr
es
su
re
N
o
suc
ti
o
n pr
es
su
re
Un
it
o
per
at
in
g
i
n
a
va
cu
um
Re
ce
iv
er s
igh
t gl
a
s
s
emp
ty
S
u
ct
io
n
l
in
e
fr
ost
ing
b
a
c
k
Un
ab
le
to
p
u
mp
d
o
w
n
s
y
s
tem
U
n
a
b
le
t
o
p
u
ll
va
cu
u
m
in
lo
w
sid
e
U
n
a
b
le
t
o
h
o
ld
va
cu
u
m
in
lo
w s
id
e
N
o
is
y c
o
m
p
re
sso
r
U
n
it
n
o
t
re
fr
ig
e
ra
tin
g
U
n
it
no
t
he
at
in
g
o
r
de
fr
os
ti
n
g
Sy
mptom
Possible Causes
• • • • Overcharge of refrigerant
• • • • • • Shortage of refrigerant
• • • • • No refrigerant
• Air through condenser too hot (ambient)
• Air flow through condenser restricted
• • • Air through condenser too cold (ambient)
• • • Air in refrigerant system
• Condenser fan blades bent or broken
• Air short cycling around evaporator coil
• Air through evaporator restricted
• • • • Evaporator needs defrosting
• Compressor discharge valves leaking
• • Scroll compressor seals leaking
• Too much compressor oil in system
• Faulty oil pump in compressor
• Loose compressor pulley
• Compressor bearing loose or burned out
• • • • • Broken discharge check valve in compressor
• • Expansion valve power element lost its charge