Trane IntelliPak CGAF Series, Программирование, Руководство по устранению неисправностей

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59
System Testing & Troubleshooting
DIAGNOSTI
C
DI
SPLAYED
R
EASON FOR DI
AG
NOSTIC
UCM’
S REACTION
RESET REQUIRED
Low
P
res
s
u
re
C
ont
ro
l O
p
en -
C
ir
c
ui
t 2 (
C
ir
c
u
it #2 40-
60 T
on uni
ts
onl
y
)
P
ro
b
le
m
: Th
e
r
e
fr
ig
e
ra
n
t i
n
C
ir
c
u
it 2
is
c
o
ld and m
a
y
c
a
us
e t
h
e S
o
lut
ion in
th
e C
h
ill
er
bar
re
l t
o
bec
om
e t
o
o c
o
ld
.
A
ls
o
, t
h
er
e m
a
y
be a s
tat
e of
c
h
ar
ge
is
s
ue w
ith
C
ir
c
ui
t 2.
W
ith
o
n
e
o
r m
o
re
c
o
m
p
re
s
s
o
rs
ru
nni
ng,
t
he hi
gher
pr
es
s
u
re
of
t
h
e
tw
o LP
C
s
w
itc
h
es
on C
ir
c
uit
2 has
opened 6 t
im
e
s
w
ith
t
he LP
C
B
y
pas
s
re
lay
de-
e
ner
g
iz
ed,
or
it
w
a
s
open at
th
e
ti
m
e
th
e
L
P
C
B
y
p
a
s
s
R
e
la
y
d
e
-
ener
g
iz
ed.
O
n
a s
tandar
d uni
t t
h
is
is
th
e 45 P
S
IG
LP
C
s
w
itc
h
, but
c
a
n be
20 P
S
IG
or
lo
w
e
r on uni
ts
w
ith
a l
o
w
e
r
Leav
ing S
o
lut
ion S
e
tp
oi
nt
r
a
nge.
A
“
L
oc
k
out
C
ir
c
ui
t # 2”
r
eques
t i
s
is
s
u
ed t
o
t
h
e C
o
m
p
re
s
s
or
S
tagi
ng
C
ont
ro
l f
unc
tion.
T
h
e C
o
m
p
re
s
s
o
r
R
e
lay
s
, LP
C
B
y
pas
s
R
e
lay
, Liquid
Lin
e
S
o
le
no
id
R
e
la
y
, an
d
H
o
t G
a
s
B
y
pas
s
R
e
la
y
f
o
r C
ir
c
ui
t 2 ar
e al
l
de-
ener
g
iz
ed.
(P
M
R
) A
m
a
nual r
e
s
e
t is
r
equir
ed
any
tim
e af
te
r t
he D
ia
g
n
o
s
tic
is
s
e
t.
T
h
e D
iagnos
tic
c
a
n be r
e
s
e
t by
th
e H
u
m
an I
n
te
rf
ac
e or
T
rac
er
, or
b
y
c
y
c
lin
g
p
o
w
e
r to
th
e
C
G
M
.
L
S
S
A
d
ju
s
te
d
t
o
M
a
int
a
in M
inim
u
m
D
iffe
re
n
tia
l
P
robl
e
m
: T
h
e ac
tiv
e
Leav
in
g
S
o
lu
tio
n
S
e
tp
o
in
t (
L
S
S
) i
s
c
lo
s
e
r to
th
e
Leav
in
g S
o
lu
tion C
u
to
ut
T
e
m
p
S
e
tp
oi
nt
t
h
an t
h
e c
a
lc
ul
at
ed
Mi
n
imu
m D
iff
e
re
n
tia
l.
T
h
e ac
tiv
e
Leav
ing S
o
lu
tion S
e
tp
oi
nt
and t
h
e Leav
ing S
o
lu
tion C
u
to
ut
T
e
m
p
er
at
ur
e S
e
tp
oi
nt
ar
e t
o
o c
los
e
to
get
h
er
f
o
r pr
oper
unit
oper
at
io
n.
T
h
e ac
tiv
e
Leav
in
g S
o
lut
ion
S
e
tp
o
in
t i
s
s
e
t to
th
e
L
e
a
v
in
g
S
o
lu
tion C
u
to
ut
T
e
m
per
at
ur
e
S
e
tp
oi
nt
pl
us
t
h
e c
a
lc
ul
at
ed
Mi
n
imu
m D
iff
e
re
n
tia
l v
a
lu
e
.
(P
A
R
) A
n
a
u
to
m
a
tic
r
e
s
e
t o
c
c
u
rs
a
fte
r th
e
d
iffe
re
n
c
e
b
e
tw
e
e
n
th
e
a
c
tiv
e
L
e
a
v
in
g
S
o
lu
tio
n
S
e
tp
o
in
t
and t
h
e Leav
in
g S
o
lut
ion C
u
to
ut
T
e
m
p
er
at
ur
e S
e
tp
oint
m
e
et
s
t
he
m
ini
m
u
m
di
ff
e
re
nc
e r
equi
rem
ent
.
M
C
M
C
o
m
m
un
ic
at
io
ns
F
a
ilur
e
(4
0-
60 T
o
n uni
ts
only
)
P
roblem
: T
h
e C
G
M
has
los
t
c
o
m
m
uni
c
at
io
ns
w
ith
t
h
e M
C
M
.
C
h
ec
k
: C
h
ec
k
f
iel
d/
uni
t w
ir
ing
bet
w
een C
G
M
and M
C
M
.
The
C
G
M
h
a
s
los
t c
o
m
m
un
ic
at
io
ns
w
ith
th
e
M
C
M
.
A
“
L
o
c
k
o
u
t”
r
e
q
u
e
s
t i
s
s
e
n
t to
th
e
C
o
m
p
re
s
s
or
S
tagi
ng C
o
nt
ro
l
fu
nc
tion.
T
h
e Li
qui
d
Li
ne S
o
le
noi
d
R
e
la
y
s
and LP
C
B
y
p-
ener
g
iz
ed.
(P
A
R
) A
n
a
u
to
m
a
tic
r
e
s
e
t o
c
c
u
rs
af
te
r c
o
m
m
uni
c
at
ion has
been
re
s
tor
ed.
S
a
t Li
qui
d
T
e
m
p
er
at
ur
e S
e
ns
or
F
a
il
Ci
rc
u
it 1
P
roblem
: C
ir
c
uit
1 S
a
tu
ra
te
d Liquid
Li
ne T
e
m
p
er
at
ur
e s
ens
or
input
is
out
of
r
a
nge.
C
h
ec
k
: S
e
ns
or
r
e
s
is
tanc
e
bet
w
een
830 ohm
s
(
200 F
) and 345.
7K
ohm
s
(-
4
0
F)
. If n
o
t, c
h
e
c
k
fi
e
ld
/u
n
it w
ir
in
g
bet
w
een S
ens
or
and S
C
M
/M
C
M
.
T
h
e S
u
per
h
eat
/S
ubc
ool M
o
dul
e i
s
in
s
tal
le
d and t
h
e uni
t i
s
r
e
adi
ng a
s
ignal
t
h
at
is
out
of
r
ange f
o
r t
h
e
C
ir
c
ui
t 1 S
a
tu
ra
te
d Li
qui
d
Li
ne
T
e
m
p
er
at
ur
e S
ens
or
in
put
on t
he
S
C
M
/M
C
M
. (
T
em
p <
-
5
5 F
or
T
e
m
p
>
209 F
).
T
h
e S
u
per
heat
/S
ubc
o
ol c
a
lc
ulat
ion
is
in
v
a
lid
and t
h
e v
a
lues
ar
e s
e
t t
o
z
e
ro
. N
o
ot
her
c
h
ange i
n
uni
t
oper
at
ion oc
c
u
rs
. T
h
is
di
agnos
tic
is
f
o
r in
fo
rm
a
tion
on
ly
.
(I
N
F
O
) A
n
aut
om
at
ic
r
e
s
e
t oc
c
u
rs
af
te
r t
h
e C
ir
c
ui
t 1 S
a
tu
ra
ted Li
qui
d
T
e
m
p
er
at
ur
e S
e
ns
or
in
put
r
e
tu
rn
s
to
it
s
al
lo
w
abl
e r
a
nge.
I
n
or
der
t
o
pr
ev
ent
r
api
d c
y
c
lin
g of
t
he
D
iagnos
tic
, t
h
er
e i
s
a 10 s
e
c
o
nd
d
e
la
y
b
e
fo
re
th
e
a
u
to
m
a
tic
r
e
s
e
t.