61
Is ha
rne
ss plug
ged
in
to
Return
Te
mpe
rat
ur
e Se
ns
or
?
Is harness
plugged into Control
Module J5?
_ P _ _ _
Blocking Error E 5 2
Return Sens
Open
Replac
e
Re
tur
n
T
e
mpera
tur
e
Se
nsor
Replace Control
Module
Check
continuity of brown
wires between
Return
T
emperature Sensor and
Control Modu
le J5
-4 an
d J5
-1
2
Continuity?
Measure Re
tu
rn
Te
mpe
rature
Sen
so
r re
sistance with
d
igita
l
meter.
Es
timat
e Sens
or
temperature.
Do temperature
and resist
ance f
all
within
ran
ges sh
own in ch
art?
Re
place Wires
50
to
9
0
10
to
3
2
9K to
2
4K ohms
15
0 to
2
00
90 to 130
°F
°C
R
es
istan
ce
13
0 to
1
50
2K
to 1K ohms
2K
to 3K ohms
3K
to 9K ohms
54
to
6
6
32
to
5
4
66
to
9
4
Return Temperature Sensor
Re
sistance
Cha
rt
YE
S
NO
Inser
t Ha
rnes
s
YE
S
NO
YE
S
NO
13 - TROUBLE SHOOTING
Содержание DKVLT-050
Страница 47: ...47 13 TROUBLE SHOOTING ...
Страница 51: ...51 13 TROUBLE SHOOTING ...
Страница 53: ...53 13 TROUBLE SHOOTING ...
Страница 62: ...62 Supply Water Temperature Sensor Resistance Chart 13 TROUBLE SHOOTING ...
Страница 64: ...64 14 WIRING DIAGRAM 14 1 Connection Diagram 050 075 100 150 200 MBH ...
Страница 66: ...66 14 WIRING DIAGRAM 14 3 Connection Diagram 299 MBH EXTERNAL PUMP RELAY LIMIT OF 1 AMP PER PUMP SEE SECTION 8 ...
Страница 83: ...83 NOTES ...
Страница 84: ...ECR International Inc 2201 Dwyer Avenue Utica NY 13501 web site www ecrinternational com ...