Navien NP-180, Руководство по обслуживанию

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avien
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eri
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a
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. 20
1
0
NR/NP
series servi
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e Manua
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1
0
8
Versi
o
n 2.0
Check method
Check method Cause Error type
D
e
f
e
c
tive
sens
o
r
O
t
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er tr
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D
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t
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r
D
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g
as
p
ressure sens
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PCB
Ch
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e asse
mbly
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d co
nta
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t
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g
as
p
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r
co
nne
c
t
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r.
Ch
e
c
k t
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as
p
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p
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Op
eratin
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v
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(Bl
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V
Sens
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p
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Op
en
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0.
1±
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1
V
o
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low
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ho
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ir
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uit
: DC 4
.
5±
0.2 V
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t
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ntinues
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es
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ite t
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kin
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ve ite
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s
,
re
pl
a
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e t
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PCB
.
Gas
p
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ho
se is
p
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d
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Gas
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p
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d o
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Ch
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c
k t
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mbly of
t
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(+) o
r
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se
,
an
d
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an
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o
n t
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se.
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