Trane IntelliPak CGAF Series, Programming, Troubleshooting Manual

Page: 57 / 68

57
System Testing & Troubleshooting
DIAGNOSTIC DISPLAYED
REASON FOR DIAGNOSTIC
UCM’
S
REACTION
RESET REQUIRED
IB
T
S
A
d
jus
ted t
o
M
a
int
a
in M
in D
if
f
P
roblem
: T
h
e ac
ti
v
e
I
c
e B
u
ild
T
e
rm
inat
e S
e
tpoint
(
IB
T
S
) is
c
los
er
t
o
t
h
e Leav
ing S
o
lut
ion
C
u
to
ut
T
e
m
p
S
e
tp
oint
t
h
an t
h
e
c
a
lc
ulat
ed M
inim
u
m
D
if
fer
ent
ial.
T
h
e ac
ti
v
e
I
c
e B
u
ild T
e
rm
inat
e S
e
tp
oint
and t
h
e Leav
ing S
o
lut
ion C
u
to
ut
T
e
m
p
S
e
tpoint
ar
e t
o
o c
los
e t
oget
h
er
f
o
r pr
oper
unit
oper
at
ion.
T
h
e ac
ti
v
e
I
c
e B
u
ild T
e
rm
inat
e
S
e
tpoint
is
s
e
t t
o
t
h
e Leav
ing
S
o
lut
ion C
u
to
ut
T
e
m
p
S
e
tpoint
plus
t
he lar
ger
of
1)
c
a
lc
ulat
ed
M
inim
u
m
D
if
fer
ent
ial v
a
lue,
or
2)
6.
5 deg F
.
(P
A
R
) A
n
aut
om
at
ic
r
e
s
e
t oc
c
u
rs
af
te
r
th
e dif
fe
re
nc
e bet
w
een t
h
e ac
ti
v
e
I
c
e
B
u
ild T
e
rm
inat
e S
e
tpoint
and t
h
e
Leav
ing S
o
lut
ion C
u
to
ut
T
e
m
p
S
e
tp
oint
m
eet
s
t
he m
inim
u
m
dif
fer
enc
e
re
quir
e
m
e
nt
.
Ic
e B
u
ild T
e
rm
inat
e S
e
tpoint
F
a
il
P
roblem
: T
h
e I
c
e B
u
ild T
e
rm
inat
e
S
e
tp
oint
is
out
of
r
a
nge.
C
h
e
c
k
: If Ic
e
B
u
ild
Te
rm
in
a
te
S
e
tp
oint
S
our
c
e
is
as
s
igned t
o
e
ith
e
r G
B
A
S
m
o
d
u
le
, b
u
t th
is
s
e
tp
oint
has
not
been as
s
igned t
o
one of
t
hat
G
B
A
S
m
o
dule’s
analog
in
p
u
ts
, th
is
d
ia
g
n
o
s
ti
c
c
a
n
o
c
c
u
r.
T
h
e unit
is
r
eading a s
ignal t
h
at
is
out
of
range f
o
r t
h
e I
c
e B
u
ild T
e
rm
inat
e
S
e
tpoint
.
T
h
e def
ault
(
H
I)
I
c
e B
u
ild
T
e
rm
inat
e S
e
tp
oint
w
ill bec
o
m
e
the ac
ti
v
e
s
e
tp
oint
w
h
ile t
h
is
diagnos
ti
c
is
ac
ti
v
e
.
(P
A
R
) A
n
aut
om
at
ic
r
e
s
e
t oc
c
u
rs
af
te
r
th
e des
ignat
ed I
c
e B
u
ild T
e
rm
inat
e
S
e
tp
oint
s
o
ur
c
e
s
ends
a s
ignal t
h
at
is
w
it
h
in r
a
nge f
o
r 10 c
o
nt
inuous
s
e
c
onds
,
or
af
te
r a dif
fer
ent
s
e
tpoint
s
our
c
e
is
us
er
-d
ef
ined.
Leav
ing S
o
lut
ion S
e
tpoint
F
a
il
P
roblem
: T
h
e des
ignat
ed Leav
ing
S
o
lut
ion S
e
tpoint
is
out
of
r
a
nge.
If e
ith
e
r G
B
A
S
m
o
d
u
le
i
s
des
ignat
ed as
t
h
e Leav
ing S
o
lut
ion
S
e
tp
o
in
t s
o
u
rc
e
, v
e
ri
fy
th
a
t G
B
A
S
m
odule has
t
h
is
input
as
s
igned t
o
one of
it
’s
analog input
s
.
T
h
e des
ignat
ed Leav
ing S
o
lut
ion S
e
tp
oint
s
o
ur
c
e
is
out
of
r
a
nge.
O
u
t of
r
ange is
def
ined as
one of
t
he f
o
llow
ing:
a)
LS
S
>
65 deg F
or
<
51 deg F
f
o
r unit
w
it
h
LS
S
R
a
nge 51-
65 deg F
.
b)
LS
S
>
50 deg F
or
<
40 deg F
f
o
r unit
w
it
h
LS
S
R
a
nge 40-
50 deg F
.
c
) LS
S
>
39 deg F
or
<
30 deg F
f
o
r unit
w
it
h
LS
S
R
a
nge 30-
39 deg F
.
d)
LS
S
>
29 deg F
or
<
20 deg F
f
o
r unit
w
it
h
LS
S
R
a
nge 20-
29 deg F
.
e)
LS
S
>
75 deg F
or
<
10 deg F
f
o
r unit
wi
th
L
S
S
Ra
n
g
e
SPEC
IA
L
.
W
h
ile t
h
e diagnos
tic
is
ac
ti
v
e
,
the Leav
ing S
o
lut
ion S
e
tp
oint
w
ill r
e
v
e
rt
t
o
us
ing t
he def
a
ult
(H
I)
Leav
ing S
o
lut
ion S
e
tp
oint
.
(P
A
R
) A
n
aut
om
at
ic
r
e
s
e
t oc
c
u
rs
af
te
r
th
e des
ignat
ed Leav
ing S
o
lut
ion
S
e
tp
oint
r
e
tu
rn
s
t
o
it
s
allow
able r
ange.
In
or
der
t
o
pr
ev
ent
r
a
pid c
y
c
ling of
t
he
D
iagnos
ti
c
, t
h
er
e is
a 10 s
e
c
o
nd delay
bef
or
e t
he aut
o
m
a
ti
c
r
e
s
e
t.
Liquid P
res
s
u
re
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
Line P
res
s
u
re
s
ens
or
input
is
out
of
r
a
nge.
C
h
ec
k
: C
h
ec
k
f
ield/
unit
w
ir
ing
bet
w
een S
e
ns
or
and S
S
M
.
T
h
e unit
is
r
eading a s
ignal t
h
at
is
out
of
range f
o
r t
h
e C
ir
c
uit
1 S
a
tu
ra
ted Liquid
Line P
res
s
u
re
S
e
ns
or
input
on t
h
e S
S
M
.
(P
re
s
s
u
re
<
0 P
S
IG
or
P
res
s
u
re
>
400
PSI
G
).
T
h
e S
u
per
heat
/S
ubc
o
ol
c
a
lc
ulat
ion is
inv
a
lid and t
h
e
va
iu
e
s
a
re
se
t t
o
ze
ro
. N
o
ot
her
c
h
ange in unit
oper
a
ti
on
oc
c
u
rs
. T
h
is
diagnos
ti
c
is
f
o
r
inf
o
rm
at
ion only
.
(I
N
F
O
) A
n
aut
om
at
ic
r
e
s
e
t oc
c
u
rs
af
te
r
th
e C
ir
c
uit
1 S
a
tu
ra
te
d Liquid P
res
s
u
re
S
e
ns
or
input
r
e
tu
rn
s
t
o
it
s
allow
able
ra
nge.
I
n
or
der
t
o
pr
ev
ent
r
a
pid c
y
c
ling
of
t
h
e D
iagnos
ti
c
, t
her
e is
a 10 s
e
c
o
nd
delay
bef
o
re
t
h
e aut
om
at
ic
r
e
s
e
t.