Replacement Parts List

25
Boiler Control Replacement Parts
McDonnell & Miller
B
OILER
C
ONTROLS
Low Water Cut-Off/Pump Controllers
For Steam Boilers
Series 150, 150S & 150E
Series 157, 157S & 157E
(continued)
For Part Repl. Head Weight
Model Number Model No. Description lbs. (kg)
150S-HD 173003 Head mechanism 11.0 (5.0)
or
150S-M-HD 173203 150S-HD w/manual reset 11.0 (5.0)
150S-MD-HD 173103 150S-HD w/maximum differential 11.0 (5.0)
150S-M-MD-HD 173302 150S-HD w/maximum reset 11.0 (5.0)
and maximum differential
158S-HD 178602 Head mechanism 12.5 (5.7)
or
158S-M-HD 178702 158-S-HD w/manual reset 12.5 (5.7)
159S-HD 178702 Head mechanism 12.0 (5.7)
150E-HD 171640 Head, automatic reset 7.45 (3.48)
150E-M 171650 Head, manual reset 7.45 (3.48)
Replacement Head Mechanisms
Series 150S-HD
Series 150E-HD
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