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McDonnell & Miller 150E Series - Probe and Control Box Wiring

McDonnell & Miller 150E Series
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9
Screws
Plate Ground
Blue/Top
Yellow/Middle
Red/Bottom
Connect wires between Control Box and Probes
as follows.
Pr
obes Control
Top/Blue Top/Blue
Middle/Yellow Middle/Yellow
Bottom/Red Bottom/Red
Plate Ground Chassis Ground
Attach cover plate to probe housing.
Use knockout plug from probe housing to plug
the hole in the cover plate.
Proceed to Electrical Wiring Section to complete
wiring to Burner and Pump/Valve circuits.
Wire connections at Probes (1/4 Ring Terminal) and
Control Panel (22-18 Female Spade) must be made
with connectors suitable for high temperature (200˚C)
service.
NOTE
BCOM
BNC
BNO
PCOM
PNC
PNO
N
H
BCOM
BNC
BNO
PCOM
PNC
PNO
N
H
60
30
Secs.
0 60
30
Secs.
0
BCOMBCOM
BNCBNC
BNOBNO
PCOMPCOM
PNCPNC
PNOPNO
N
H
BCOM
BNC
BNO
PCOM
PNC
PNO
N
H
6060
3030
SecsSecs.
0 6060
3030
SecsSecs.
0
Probe wires
Control Box
Chassis Ground