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
119
Versi
o
n 2.0
5.25. 45Error
Error occurrence conditions and check items
Description Error
45E
Bypass
Mixing
Valve error
Check items
I
n
NR/NP
t
yp
e
, ch
e
c
k t
h
e
co
n
d
iti
o
n
of byp
ass
m
i
x
in
g
va
l
ve
wh
en su
pply pow
er
,
turn
R/C o
n
/off, o
r st
op b
urner
op
erati
o
n. W
h
en
byp
ass
m
i
x
in
g
va
l
ve is n
o
ti
c
e
d
in a
b
n
o
r
m
a
l co
n
d
iti
o
n
, d
is
pl
a
y 45E
.
D
is
pl
a
y
err
o
r
cod
e
wh
en
byp
ass Mi
x
in
g
va
l
ve
c
ann
o
t
clo
se.
(D
is
pl
a
y 16
.0
1
at
PCB – g
enera
lly
ste
p mo
t
o
r
of byp
ass
m
i
x
in
g
va
l
ve is in a
b
n
o
r
m
a
l
co
n
d
iti
o
n.
)
D
is
pl
a
y
err
o
r
cod
e
wh
en
byp
ass Mi
x
in
g
va
l
ve
c
ann
o
t
op
en.
(D
is
pl
a
y 16
.02 at
PCB – g
enera
lly w
ire
of m
i
x
in
g
va
l
ve is
d
is
co
nne
c
te
d o
r
f
ee
db
a
c
k
sens
o
r
of byp
ass
m
i
x
in
g
va
l
ve is in a
b
n
o
r
m
a
l co
n
d
iti
o
n.
)
1
.
Ch
e
c
k t
h
e
co
nne
c
t
o
r is
co
nne
c
te
d b
et
w
een
byp
ass
m
i
x
in
g
va
l
ve an
d PCB
.
2.
D
e
f
e
c
tive Mi
x
in
g
trans.
3
.
D
e
f
e
c
tive
Byp
ass Mi
x
in
g
va
l
ve
4
.
D
e
f
e
c
tive
PCB
.