Replacement Parts List

102
Flow Switches
McDonnell & Miller
• For general purpose applications where high sensitivity
is required and moderate or low flow rates are encoun-
tered such as air conditioning, heating and hydronic
systems, water, fuel oil, some viscous liquids and oils in
process work
• In-line configuration eliminates need for a pipe tee
• High flow capacity
•
1
⁄
2
" NPT
• Single pole, double throw snap switch
• Switch compartment is completely sealed to protect it
from the liquid
• Sensitivity adjusting screw makes flow adjustment easy
• Optional features
– BSPT threads
– Gold plated contacts
• Minimum temperature (fluid or ambient) 32°F (0°C)
• Maximum temperature 225°F (107°C)
• Maximum operating pressure 100 psi (7 kg/cm
2
)
Series FS1
F l ow Switches – Liquid
Series FS1
High Sensitivity Liquid Flow Switches
D i m e n s i o n s , i n . ( m m )
A B C D E F G H J
NPT NPT
3
3
⁄
4
(95) 2
5
⁄
8
(67)
1
⁄
2
7
⁄
8
(22) 3
13
⁄
16
(97) 3
3
⁄
16
(81) 4
7
⁄
16
(113) 1
1
⁄
4
(32)
1
⁄
2
Electrical Ratings
Motor Switch Rating (Amperes)
Voltage Full Load Locked Rotor Pilot Duty
120 VAC 7.4 44.4
125 VA at
240 VAC 3.7 22.2
120 or 240 VAC
50 or 60 cycles
(for specified models)
12.FlowSwitches 96-103• 3/6/07 2:05 PM Page 102