Navien NP-180, Руководство по обслуживанию

Страница: 123 / 179

©N
avien
Am
eri
c
a
I
n
c
. 20
1
0
NR/NP
series servi
c
e Manua
l
1
2
1
Versi
o
n 2.0
Check method Error
D
e
f
e
c
tive
Byp
ass
Mi
x
in
g
Va
l
ve
O
t
h
er tr
o
u
bl
e
Co
nne
c
ti
o
n
of
Wire ass
’y
in
f
au
l
t
D
e
f
e
c
tive
F
ee
db
a
c
k
D
e
f
e
c
tive
Ste
p
M
o
t
o
r
D
e
f
e
c
tive Mi
x
in
g
T
rans
D
e
f
e
c
tive
PCB
Ch
e
c
k t
h
e
co
nne
c
ti
o
n
of w
ire t
o w
ire
co
nne
c
t
o
r
b
et
w
een
byp
ass
m
i
x
in
g
va
l
ve an
d PCB
Ch
e
c
k t
h
e
op
erati
o
n
wh
en
co
nne
c
t t
h
e
byp
ass
m
i
x
in
g
va
l
ve.
(op
erati
o
n
ch
e
c
kin
g:
su
pply pow
er
,
turn
R/C o
n
/off,
st
op b
urner
op
erati
o
n
)
Ch
e
c
k t
h
e v
ol
ta
g
e
of CN
2
4 (BLACK-RED : DC 7~13
V
)
- If
v
ol
ta
g
e ran
g
e is n
o
t in n
o
r
m
a
l, ch
e
c
k
co
nne
c
ti
o
n
of w
ire
,
m
i
x
in
g
trans an
d PCB
.
O
ut
p
ut v
ol
ta
g
e
of bl
a
c
k
-wh
ite
w
ire
of CN
2
4(DC
0
~13
V
)
is n
o
t
ch
an
g
e
, d
is
pl
a
y 45E(16
.02
) d
urin
g ch
e
c
kin
g op
erati
o
n.
- Ch
e
c
k t
h
e
co
nne
c
ti
o
n
of w
ire t
o w
ire
co
nne
c
t
o
r an
d
re
co
nne
c
t it
- Ch
e
c
k t
h
e
d
is
co
nne
c
ti
o
n
of wh
ite
w
ire
- Ch
e
c
k t
h
e
op
erati
o
n
co
n
d
iti
o
n
of
ste
p mo
t
o
r
of byp
ass
m
i
x
in
g
va
l
ve
Ch
e
c
k t
h
e
co
nne
c
ti
o
n
of w
ire t
o w
ire
co
nne
c
t
o
r an
d
re
co
nne
c
t it.
Ch
e
c
k t
h
e
m
i
x
in
g
trans.
Ch
e
c
k t
h
e ste
p mo
t
o
r
d
urin
g ch
e
c
kin
g op
erati
o
n
Ch
e
c
k t
h
e
o
ut
p
ut
p
u
l
se
of p
ink
-o
ran
g
e
w
ire an
d bl
ue
-y
e
llow
w
ire
of CN
2
4
.
(PINK-ORAN
G
E : -1
2
~ 1
2 V
DC (p
u
l
se
),
BLUE-YELLO
W
: -1
2
~ 1
2 V
DC (p
u
l
se
)
Ch
e
c
k t
h
e v
ol
ta
g
e
b
et
w
een
bl
ue an
d bl
ue
w
ire
of CN
2
3 : (14 ~
20V
AC)
If
t
h
e tr
o
u
bl
e
co
ntinues
d
es
p
ite t
h
e
ch
e
c
kin
g of
a
bo
ve ite
m
s
,
re
pl
a
c
e t
h
e
PCB
.
Cause
Check method