Navien NP-180, Руководство по обслуживанию

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©N
avien
Am
eri
c
a
I
n
c
. 20
1
0
NR/NP
series servi
c
e Manua
l
66
Versi
o
n 2.0
Check method
Check method Cause
Capacity
(Btu/h)
DIP Switch
Model Remark
Error type
Th
u
dd
in
g
n
o
ise
c
ause
d by
c
ir
c
u
l
ati
o
n
err
o
r
T
e
mp
erature
sens
o
r err
o
r
O
t
h
er tr
o
u
bl
e
Th
e
m
ain
h
eat
e
xch
an
g
er is
clogg
e
d
.
D
e
f
e
c
tive
ho
t
w
ater in
p
ut
/
o
ut
p
ut
te
mp
erature
sens
o
r
C
a
p
a
c
it
y
settin
g
D
e
f
e
c
tive
PCB
Se
p
arate in
l
et
/o
ut
l
et
p
i
p
e
of
t
h
e
m
ain
h
eat e
xch
an
g
er
,
an
d blow
air
w
it
h mo
ut
h
t
o ch
e
c
k i
f
t
h
e
p
i
p
e is
clogg
e
d
.
1
.
Th
e s
y
ste
m
re
cog
ni
z
es t
h
e
h
eatin
g w
ater te
mp
erature
h
i
gh
er
t
h
an it a
c
tua
lly
is
d
ue t
o
a
d
e
f
e
c
tive sens
o
r.
Ch
e
c
k i
f
t
h
e
d
eviati
o
n
of
te
mp
erature is
l
ar
g
e
d
ue t
o
a
d
e
f
e
c
tive
te
mp
erature sens
o
r.
2.
P
u
ll o
ut t
h
e
ho
t
w
ater
o
ut
p
ut te
mp
erature sens
o
r
co
nne
c
t
o
r
o
n
ly,
co
nne
c
t a n
o
r
m
a
l
te
mp
erature sens
o
r
o
r
m
easure t
h
e sens
o
r
re
-
sistan
c
e
,
an
d ch
e
c
k t
h
e
d
i
ff
eren
c
e
w
it
h
t
h
e
c
urrent te
mp
erature.
1
.
If
t
h
e
m
a
x
i
m
u
m fi
rin
g
rate s
w
it
ch 1
is
o
n
,
Set t
h
e s
w
it
ch
t
o
t
h
e n
o
r
m
a
l op
erati
o
n
po
siti
o
n.
2. Su
dd
en in
c
rease
of
te
mp
erature
d
ue t
o PCB
.
DIP
S
/
W set
-
tin
g
err
o
r.
NR-18
0
(A)/NP-18
0
(A)
NR-
2
1
0
(A)/NP-
2
1
0
(A)
NR-
2
4
0
(A)/NP-
2
4
0
(A)
15
0
,
000
18
0
,
000
199,
000
5
OFF
ON
OFF
6
OFF
OFF
ON
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
.
< Ch
e
c
k i
f
t
h
e
m
ain
h
eat e
xch
an
g
er is
clogg
e
d >