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
1
2
4
Versi
o
n 2.0
5.27. Troubleshooting guide by symptom
5.27.1. Noise
Check method Cause Error type
Vi
b
rati
o
n
n
o
ise
D
e
f
e
c
tive
insta
ll
ati
o
n
Blow
er vi
b
rati
o
n
n
o
ise
I
n
co
rre
c
t
l
eve
l
settin
g o
r
fix
in
g
err
o
r
Ch
e
c
k t
h
e
fix
in
g
state
,
an
d
reinsta
ll
t
h
e unit.
Vi
b
rati
o
n
c
ause
d d
ue t
o d
e
f
e
c
tive
blow
er
FAN b
a
l
an
c
e.
To
u
ch
t
h
e
blow
er.
If
vi
b
rati
o
n is si
g
ni
fic
ant
,
re
pl
a
c
e t
h
e
blow
er.
If
inter
m
ittent n
o
ise
occ
urs
d
urin
g op
erati
o
n
, ch
e
c
k t
h
e
blow
er.
If
vi
b
rati
o
n n
o
ise
occ
urs
d
urin
g op
erati
o
n
of
t
h
e
p
r
od
u
c
t
,
an
d
st
op
s
wh
en t
h
e
c
ase
l
i
d
is re
mo
ve
d, ch
e
c
k t
h
e
blow
er.
R
e
g
u
l
ar
n
o
ise
No
ise at
i
g
niti
o
n
No
ise
d
urin
g
comb
usti
o
n
D
e
f
e
c
tive
flow
sens
o
r
Ma
lf
un
c
ti
o
n
of
w
ater a
dj
ust
m
ent
va
l
ve
Gas an
d
air
d
i
ff
erentia
l
p
ressure err
o
r
(Pop, B
ee
p,
Explo-
sive
i
g
niti
o
n
)
D
i
ff
erentia
l
p
ressure
settin
g
err
o
r
Bo
i
l
in
g
n
o
ise
Ro
tatin
g
n
o
ise
d
ue t
o fo
rei
g
n su
b
stan
c
e entere
d
int
o
t
h
e
flow
sens
o
r.
No
ise
d
ue t
o
re
p
eate
d op
enin
g/clo
sin
g of w
ater a
dj
ust
m
ent va
l
ve
d
ue t
o
a
d
e
f
e
c
tive
PCB
.
1
. Gas
d
i
ff
erentia
l p
ressure a
dj
ust
m
ent err
o
r
Adj
ust
d
i
ff
erentia
l p
ressure
w
it
h
t
h
e
p
ressure a
dj
ustin
g
s
c
re
w o
n t
h
e
m
ain
g
as va
l
ve.
DIP
S
/
W
1,
2
ON (
S
/
W
3
M
IN),
If
n
o
ise
occ
urs at stan
d
ar
d
va
l
ue
,
a
dj
ust settin
g
a
bo
ve
/ b
e
low
t
h
e stan
d
ar
d
.
2.
Exc
essive
g
as su
pply d
ue t
o d
e
f
e
c
tive
p
r
opo
rti
o
na
l
va
l
ve
o
n t
h
e
m
ain
g
as va
l
ve.
Ch
e
c
k i
f
t
h
e
p
r
opo
rti
o
na
l
va
l
ve
w
ire is
op
en
,
an
d
i
f
t
h
ere is a
p
r
obl
e
m,
re
pl
a
c
e t
h
e
m
ain
g
as va
l
ve..
3
. Gas su
pply
err
o
r
d
ue t
o d
e
f
e
c
tive air
p
ressure sens
o
r.
4
.
If
t
h
e sa
m
e err
o
r is re
p
eate
d,
it is
d
ue t
o
a
d
e
f
e
c
tive
PCB
.
B
ee
p
i
f
t
h
e
g
as
p
ressure is e
xc
essive
d
ue t
o d
e
f
e
c
tive a
dj
ust
m
ent
of d
i
ff
erentia
l p
ressure
b
et
w
een
g
as an
d
air.
No
ise si
m
i
l
ar t
o
t
h
e
bo
i
l
in
g
n
o
ise
Adj
ust Sta
g
e
3
M
AX d
i
ff
erentia
l p
ressure
by mod
e
l o
n
t
h
e s
p
e
c
i
fic
ati
o
n ta
bl
e.
H
ow
t
o ch
e
c
k t
h
e
bo
i
l
in
g
n
o
ise
:
Bo
i
l
in
g
n
o
ise
occ
urs i
f
t
h
e
w
ater te
mp
erature rises t
o149
ȕ
~167
ȕ
(65
Ȕ
~75
Ȕ
)
.
1
.
Th
e
h
eat e
xch
an
g
er is
clogg
e
d p
artia
lly d
ue t
o d
e
f
e
c
tive
w
e
ld
in
g
.
R
e
pl
a
c
e t
h
e
h
eat e
xch
an
g
er i
f
t
h
e err
o
r
occ
urs
f
r
om
t
h
e start
of
t
h
e insta
ll
ati
o
n.
2.
Th
e
h
eat e
xch
an
g
er is
clogg
e
d d
ue t
o fo
rei
g
n su
b
stan
c
e.
Cl
ean t
h
e
m
ain
h
eat e
xch
an
g
er
by
re
mo
vin
g
s
c
a
l
e.
R
e
pl
a
c
e t
h
e
m
ain
h
eat e
xch
an
g
er i
f
t
h
e err
o
r
co
ntinues a
f
ter
t
h
e
cl
eanin
g
.