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
89
Versi
o
n 2.0
Check method
Check method Cause Error type
Fl
a
m
e
blowo
ut
an
d
n
o
ise
occ
urs a
f
ter
i
g
niti
o
n
Fl
a
m
e
blowo
ut
an
d
n
o
ise
occ
urs a
f
ter
i
g
niti
o
n
Low g
as su
pply
p
ressure
PCB c
a
p
a
c
it
y
settin
g
err
o
r
D
i
ff
erentia
l
g
as
p
ressure
a
dj
ust
m
ent err
o
r
1
.
Ch
e
c
k t
h
e
g
as su
pply p
ressure.
N
G
: 5”(6” 18
0 M
ODEL) ~1
0.
5”
W.
C, LP: 8”
(9” 18
0 M
ODEL)
~13
.
5”
W.
C
LP p
ressure
d
r
op occ
urs
f
re
q
uent
ly
in t
h
e
w
inter.
2.
Ch
e
c
k t
h
e
fl
e
x
i
bl
e
p
i
p
e
d
ia
m
eter.
(3/4”)
3
. W
h
i
l
e t
h
e stati
c p
ressure is n
o
r
m
a
l,
a
l
ar
g
e
d
i
ff
eren
c
e
of dy
na
m
i
c
p
ressure
m
a
y c
ause
d
r
op of g
as
p
ressure.
Th
ere
fo
re
,
it is re
q
uire
d
t
o
ch
e
c
k t
h
e
dy
na
m
i
c p
ressure.
Ȅ
Ch
e
c
k t
h
e stati
c p
ressure
:
Gas su
pply p
ressure as t
h
e
bo
i
l
er is st
opp
e
d
.
Ch
e
c
k t
h
e
dy
na
m
i
c p
ressure
:
Gas su
pply p
ressure at
bo
i
l
er M
AX
comb
usti
o
n
4
.
Ch
e
c
k t
h
e
g
as
p
i
p
e
co
nne
c
t
o
r.
Exc
essive
fo
r
c
e in
f
astenin
g
nuts at insta
ll
ati
o
n
of g
as
p
i
p
e
m
a
y mo
ve
t
h
e
p
a
c
kin
g
an
d bloc
k t
h
e
T
e
flo
n sea
l
in
g, c
ausin
g
a
d
r
op of g
as
su
pply p
ressure.
5
.
Ch
e
c
k t
h
e
m
eter
cl
ass
(Ex
a
mpl
e
)
Gas
m
eter Water
h
eater
F
urna
c
e
Dom
esti
c g
as st
o
ve
4
2
5 CF
H
≥ 195 CF
H
+ 58
.
8 CF
H
+ 63
.
7 CF
H
* 1 CF
H
= 1,
020
B
tu
h
3-
sta
g
e M
IN d
i
ff
erentia
l g
as a
dj
ust
m
ent err
o
r.
T
urn t
h
e a
dj
ustin
g
s
c
re
w
un
d
er t
h
e
m
ain
g
as va
l
ve.
½
turn
,
an
d ch
e
c
k
t
h
e
comb
usti
o
n.
Adj
ust
d
i
ff
erentia
l p
ressure
w
it
h
t
h
e
m
eter a
f
ter i
g
niti
o
n.
PCB DIP
S
/
W 2
,3 ON /
Sta
g
e
3
M
IN m
ain
g
as va
l
ve.
Ch
e
c
k t
h
e
PCB DIP
S
/
W
c
a
p
a
c
it
y
settin
g
.
Capacity
(Btu/h)
DIP Switch
Model
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