Product Overview

Boiler Control Replacement Parts

McDonnell & Miller

OILER

ONTROLS

Series 63

Low Water Cut-Offs

Low Water Cut-Offs – Float Type

For Hot Water Boilers

Replacement Head Mechanisms

For Repl. Head Part Weight

Model Model No. Number Description lbs. (kg)

63-HD 142600 Head mechanism 7.0 (3.2)

w/ No. 2 switch

63-B

63-BM

63-M-HD 143200 63-HD w/manual reset 7.0 (3.2)

63-M

Head mechanisms include a gasket and bolts.

Series 63

Model 63-HD

Model 63-M-HD

Components (shown on page 9)

Item Part Model Weight

Number Number Number Description lbs. (kg)

1 110000 2 Switch 1.0 (0.5)

2 110100 2-M Switch w/manual reset 1.0 (0.5)

3 343200 SA63-5 Bellows assembly 1.5 (7.3)

4 302500 CO-11 Gasket 0.1 (.05)

5 343400 SA63-30 Float 1.0 (0.5)

6 302600 CO-12 Head gasket 0.1 (.05)

7 302900 CO-106 Cam 0.1 (.05)

PAGE 1
BOILER CONTROLS Boiler Control Replacement Parts McDonnell & Miller Low Water Cut-Offs – Float Type For Hot Water Boilers Series 63 Low Water Cut-Offs Series 63 Replacement Head Mechanisms For Model Repl. Head Model No. Part Number 63-HD 142600 Head mechanism w/ No. 2 switch 7.0 (3.2) 63-M-HD 143200 63-HD w/manual reset 7.0 (3.2) Description Weight lbs. (kg) 63 63-B 63-BM Model 63-HD 63-M Head mechanisms include a gasket and bolts.
PAGE 2
Boiler Control Replacement Parts McDonnell & Miller BOILER CONTROLS Low Water Cut-Offs – Float Type For Hot Water Boilers Series 63 (continued) Low Water Cut-Offs Components 1 2 7 3 5 4 6 9