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
94
Versi
o
n 2.0
Capacity
(Btu/h)
DIP Switch
Model
T
e
mp
erature
sens
o
r err
o
r
O
t
h
er tr
o
u
bl
e
D
e
f
e
c
tive
ho
t
w
ater
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
1
.
If
t
h
e
ho
t
w
ater te
mp
erature is sense
d low
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.
Ch
e
c
k t
h
e te
mp
erature
d
is
pl
a
y
e
d o
n t
h
e
PCB (
H.
5
0.
5 ȥ 5
0.
5 Ȕ )
.
2. Measure t
h
e te
mp
erature sens
o
r resistan
c
e
,
an
d d
eter
m
ine i
f
t
h
e
sens
o
r is
d
e
f
e
c
tive.
1
.
If
t
h
e Ma
x
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
c
a
p
a
c
it
y
settin
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
,
t
h
e
PCB
is
d
e
f
e
c
tive.
Main
h
eat
e
xch
an
g
er
o
ver
h
eate
d
Th
e sur
f
a
c
e te
mp
erature rises
d
ue t
o d
e
f
e
c
tive
m
ain
h
eat e
xch
an
g
er.
R
e
pl
a
c
e t
h
e
m
ain
h
eat e
xch
an
g
er.
< T
e
mp
erature
f
use
> < Ch
e
c
k i
f
t
h
e te
mp
erature
f
use is
d
is
co
nne
c
te
d
.
>
Ch
e
c
k t
h
e
PCB DIP
S
/
W
c
a
p
a
c
it
y
settin
g
.