Replacement Parts List

10
Boiler Control Replacement Parts
McDonnell & Miller
B
OILER
C
ONTROLS
Series 64
Low Water Cut-Offs
Low Water Cut-Offs – Float Type
For Hot Water Boilers
Replacement Head Mechanisms
For Repl. Head Part Weight
Series Model No. Number Description lbs. (kg)
64 64-HD 144400 Head mechanism 4.0 (1.8)
64-A
Head mechanisms include a gasket and bolts.
Series 64
Model 64-A
Model 64-HD
Components (shown on page 11)
Item Part Model Weight
Number Number Number Description lbs. (kg)
1 343600 SA64-30 Float assembly 1.0 (0.5)
2 302600 CO-12 Head gasket 0.1 (.05)
3 343500 SA64-2 Bellows assembly 0.3 (.14)
(includes item 2)
4 318800 67-12 Gasket 0.1 (.05)
5 309100 11 Switch 0.5 (.23)
6 309151 11-M No. 11 w/manual reset 0.5 (.23)
7 309200 11-MV No. 11 for Millivolt service 0.5 (.23)
8* 332800 MA-259 Quick hook-up fittings 4.5 (2.0)
(includes item 8, 9, 10)
9* 351800 SA259-24 Upper quick hook-up 1.7 (.77)
10* 349500 SA159-24 Lower quick hook-up 1.7 (.77)
11* 349400 SA159-17 Black “Y” assembly 2.3 (1.0)
*Available for 64-A models only
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