BCP / BCM Water Level Switch
Wire Side
pos
Sensor Side
24Vdc-
1
Delime Pump Black
24Vdc+
2
Delime Pump Red
-------
3
Not used
130 Q1
4
High Limit stat Motor “G”
41 Q4
5
High Limit stat Motor “G”
86 SE2
6
(Boiler Level sensor Black)
77 P3
7
100k Ohm Boiler Probe
76 P3
8
100k Ohm Boiler Probe
69 P1
9
100k Ohm Cavity Probe
68 P1
10
100k Ohm Cavity Probe
88 SE3A
11
Not used
87 SE3
12
Speed sensor Motor “sig”
211 SE1
13
Speed sensor Motor 5V-
90 X90
13
Not used
210 SE1
14
Speed sensor Motor 5V+
89 X30
14
Not used
15
(Boiler level sensor Brown
92P912V-
16
(Boiler level sensor Blue)
Plug X31:
BCP / BCM Water Level Switch Test Points
)
Boiler level sensor Brown)
Sensor Power
12 VDC
Empty
1.2 VDC
Full
0 VDC
