140
es
ua
C
e
ma
n
ed
oc
kc
eh
C
ed
oc
kc
eh
C
D
upli
ca
te
d
in
do
or
o
ut
do
or
u
ni
ts
Th
er
e
ar
e
tw
o
or
m
or
e
in
do
or
o
ut
do
or
u
ni
ts
in
a
g
ro
up
du
rin
g
gr
ou
p
co
nt
ro
l
1)
C
he
ck
w
he
th
er
th
e
co
nn
ec
tio
n
on
re
m
ot
e
co
nt
ro
lle
rs
(g
ro
up
a
nd
/
or
in
di
vi
du
al
) h
as
b
ee
n
ch
an
ge
d
si
nc
e
th
e
gr
ou
p
co
nf
ig
ur
at
io
n
an
d
ad
dr
es
s
ch
ec
ki
ng
o
n
th
e
re
m
ot
e
co
nt
ro
lle
rs
fi
ni
sh
ed
.
2)
If
th
e
gr
ou
p
co
nf
ig
ur
at
io
n
an
d
ad
dr
es
s
ar
e
no
rm
al
w
he
n
po
w
er
h
as
b
ee
n
tu
rn
ed
o
n,
th
e
m
od
e
au
to
m
at
ic
al
ly
shif
ts
to
ad
dress
s
et
up
mo
de
. F
or
set
tin
g
up
ad
dresses
a
gain,
re
fer
to
"A
ddress
s
et
up
".
es
ua
C
e
ma
n
ed
oc
kc
eh
C
ed
oc
kc
eh
C
D
upl
ic
at
ed
s
et
up
o
f o
ut
do
or
li
ne
ad
dre
ss
O
ut
do
or
li
ne
a
dd
re
ss
es
a
re
d
up
lic
at
ed
C
or
re
ct
th
e
w
ire
c
on
ne
ct
io
n.
Y
es
Y
es
N
o
No
C
or
re
ct
th
e l
in
e a
dd
re
ss
se
tu
p.
R
e-
se
t u
p t
he
a
dd
re
ss
.
(R
efer to "
Ad
dres
s s
etup
".)
Is
th
er
e
du
pl
ic
at
ed
li
ne
ad
dre
ss
s
et
up
?
Are
co
m
m
un
ic
at
io
n
w
ire
c
on
ne
ct
io
ns
o
f
[U
1.
U
2]
, [
U
3.
U
4]
no
rm
al
?
C
he
ck
o
ut
do
or
I/
F
P.
C
. b
oa
rd
.
Fa
ilu
re
Rep
lac
e
es
ua
C
e
ma
n
ed
oc
kc
eh
C
ed
oc
kc
eh
C
D
up
lic
at
ed
in
do
or
u
ni
ts
w
ith
pr
io
rit
y
(D
is
pl
ay
ed
o
n
in
do
or
u
ni
t w
ith
pr
ior
ity
)
Two
o
r m
or
e p
rio
r i
nd
oo
r u
ni
ts
e
xi
st
Th
is
c
he
ck
c
od
e
is
di
sp
la
ye
d
on
th
e
in
do
or
u
ni
t s
et
a
s
a
pr
io
r o
ne
w
he
n
tw
o
or
m
or
e
pr
io
r i
nd
oo
r u
ni
ts
a
re
d
et
ec
te
d.
• P
rio
rit
y
set
up
wit
h
two
or
more
units
is
n
ot
av
ailabl
e.
A
s
only
on
e
in
do
or
u
nit
w
ith
priorit
y
is
v
alid,
c
ha
ng
e
th
e
se
tu
p.
Lo
w
-p
re
ss
ur
e
pr
ot
ec
tiv
e
op
er
at
io
n
1.
Se
rv
ic
e v
al
ve
c
lo
se
2.
P
s s
en
so
r e
rr
or
3.
SV2, SV4 circuit error
4.
M
is
w
iri
ng
o
f c
om
m
un
ic
at
io
n
be
tw
ee
n
in
do
or
a
nd
o
ut
do
or
5.
Indo
or
/
ou
td
oo
r f
an
a
nd
c
on
de
nse
r e
rro
r
6.
In
do
or
/
ou
td
oo
r P
M
V
c
lo
gg
in
g
7.
Indo
or
/
ou
td
oo
r h
ea
t e
xc
ha
ng
er
cl
og
gi
ng
8.
R
ef
rig
er
an
t s
ho
rta
ge
es
ua
C
e
ma
n
ed
oc
kc
eh
C
ed
oc
kc
eh
C
Ar
e
se
rv
ice
va
lve
s
of
g
as
an
d
liq
ui
d
pi
pe
of
o
ut
do
or
u
ni
t f
ull
y
op
en
ed
?
Are
ch
ara
ct
eri
st
ic
s
of
lo
w
-p
re
ss
ur
e
se
ns
or
no
rm
al
?
Are SV2 and SV4
ci
rc
ui
ts
n
orm
al
?
Is
a
ny
in
do
or
u
ni
t
in
a
d
iff
er
en
t l
in
e
co
nn
ec
te
d?
In
c
oo
lin
g
se
as
on
, g
o
to
(A
)
In
h
ea
tin
g
se
as
on
, g
o
to
(B
)
*1
. P
re
ss
ur
e b
y p
re
ss
ur
e
ga
ug
e (
Ch
ec
k j
oi
nt
)
2.
P
re
ss
ur
e d
is
pl
ay
o
n
7-
se
gm
en
t d
is
pl
ay
3.
O
ut
pu
t v
ol
ta
ge
o
f I
/F
P
.C
. b
oa
rd
If
1
an
d
2,
3
a
re
d
iff
er
en
t,
an
e
rro
r o
f p
re
ss
ur
e
se
ns
or
e
rro
r i
s
co
ns
id
er
ed
.
If
2
an
d
3
ar
e
di
ffe
re
nt
, c
he
ck
I/
F
P
.C
. b
oa
rd
.
C
he
ck
m
is
wi
rin
g,
m
is
in
st
al
la
tio
n a
nd
c
on
ne
ct
or
c
on
ne
ct
io
n.
(C
he
ck
wi
th
m
is
w
iri
ng
c
he
ck
fu
nc
tio
n
of
o
ut
do
or
u
ni
t.)
No
No
No
Ye
s
O
pe
n s
er
vi
ce
v
al
ve
s
fu
lly
.
Ex
ch
an
ge
lo
w
-p
re
ss
ur
e
se
ns
or
.
Correct SV2 and SV4 circuits
C
or
re
ct
w
iri
ng
.
No
Ye
s
Ye
s
Ye
s
R
ep
ai
r fau
lty
p
ar
ts
.
R
ep
ai
r fau
lty
p
ar
ts
.
R
ep
la
ce
P
M
V b
od
y.
R
ep
la
ce
P
M
V b
od
y.
(A
) C
oo
lin
g
D
oe
s
in
do
or
fa
n
no
rm
al
ly
o
pe
ra
te
in
c
oo
lin
g
se
as
on
?
Is
th
er
e
cl
og
gi
ng
o
f i
nd
oo
r a
ir
fil
te
r
or
he
at
e
xc
ha
ng
er?
Is
in
do
or
P
M
V
no
rm
al
?
Re
fri
ge
ra
nt
sh
or
ta
ge
or
cl
og
gin
g o
r p
ipe
de
fo
rm
ed
Ar
e
fol
low
ing
ite
ms
co
nc
er
ne
d t
o i
nd
oo
r f
an
mo
tor
no
rm
al?
1.
Co
nn
ec
tor
co
nn
ec
tio
n
2.
Co
nd
en
se
r
3.
Mo
tor
4.
Fa
n
Y
es
No
No
Is
c
on
ne
ct
or
co
nn
ec
tio
n
or
c
oi
l
no
rm
al
?
Is
th
ere
c
lo
gg
in
g
on
w
ho
le
v
al
ve
?
Is
in
do
or
fa
n
sy
st
em
n
or
m
al
?
• F
an
c
ra
ck
• F
an
c
om
in
g-
of
f
C
he
ck
o
ut
do
or
I/F
P
.C
. b
oa
rd
.
Fai
lu
re
Repl
ace
No
No
Y
es
Y
es
No
No
R
ef
rig
er
an
t s
ho
rta
ge
,
cl
og
gi
ng
, p
ip
e
de
fo
rm
ed
C
le
an
in
g
C
lea
ni
ng
(B
) Heating
C
he
ck
in
do
or
P
.C
. b
oa
rd
.
Fa
ilu
re
R
ep
la
ce
Is
o
ut
do
or
fa
n
no
rm
all
y o
pe
ra
te
d i
n h
ea
tin
g
se
as
on
?
Is
th
er
e
cl
og
gi
ng
o
f o
ut
do
or
he
at
ex
ch
an
ge
r?
Is
ou
td
oo
r P
M
V
no
rm
al
?
Y
es
No
No
Ye
s
No
Ye
s
Ye
s
Ye
s
No
Y
es
129