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
3
Versi
o
n 2.0
Check method Error
Comb
usti
o
n
st
op
s
d
urin
g
t
h
e
op
erati
o
n
O
t
h
er tr
o
u
bl
e
Gas
p
ressure err
o
r
D
e
f
e
c
tive
g
as
p
ressure sens
o
r
ho
se
D
e
f
e
c
tive
g
as
p
ressure sens
o
r
D
e
f
e
c
tive
PCB
Measure t
h
e
m
ain
p
ressure.
LP : 8”(9” 180 M od e l) ~13.5” W.C
If
t
h
e
g
as
p
ressure is
low, co
nta
c
t t
h
e
g
as su
ppl
ier.
C
ause
of low g
as
p
ressure
:
1) N arr ow g a s p i p e .
2) D e f ec t ive g a s re g u l a to r .
3) L ac k of g a s in th e c o n t ainer .
4) Clogg e d p i p e (fo rei g n s u bst ance )
1
.
Ch
e
c
k t
h
e
g
as
p
ressure sens
o
r va
l
ue
(AD
va
l
ue
) d
is
pl
a
y
e
d o
n
t
h
e
co
ntr
oll
er.
(P
.
1
00
ȥ 1
00
)
Ch
e
c
k t
h
e va
l
ue at
m
in
/ m
a
x of
t
h
e
comb
usti
o
n s
p
e
c
i
fic
ati
o
n ta
bl
e.
2.
Ch
e
c
k t
h
e
g
as
p
ressure sens
o
r v
ol
ta
g
e
Op
eratin
g
v
ol
ta
g
e
(Bl
a
c
k
+R
e
d) : DC 5
V
Sens
o
r
o
ut
p
ut v
ol
ta
g
e
(Bl
a
c
k
+
W
h
ite
) : DC
0.
3~4
.0 V
1
.
Ch
e
c
k i
f
t
h
e
g
as
p
ressure sens
o
r
ho
se is
d
a
m
a
g
e
d
.
2.
Ch
e
c
k i
f
t
h
e
g
as
p
ressure sens
o
r
ho
se is
clogg
e
d
.
3
.
Ch
e
c
k i
f
t
h
e
g
as venturi is
clogg
e
d
.
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