Control Top Removal And Disassembly; Removal From Valve; Switches; Micro-Switch - Waukesha Cherry-Burell W75RS PMO Operation And Maintenance Manual

Double seat mix proof
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Maintenance
Control Top Removal and
Disassembly
Figure 23: Control Top Removal

Switches

Page 22
The W-Series, 2-Piece Control Module can be removed from the valve while the
valve either remains connected to the piping system or is separately removed.
Due to air requirements and system interlock integrity, it is not recommended to
keep the valve in service while control module is removed.

Removal from Valve

1.
Disconnect the air.
2.
Remove the (3) set screws behind the (3) plastic plugs with tabs at the base
of the module (see Figure 23).
3.
Lift off the control module, being careful not to strain or stretch the wiring
connector.
4.
If required, disconnect the electrical supply and lock out the power.
CAUTION: Only an authorized electrician should disconnect the power.
Disassembly
1.
Remove the valve from service.
2.
Shut off the delivery of air.
3.
Disconnect the electrical supply and lock out the power.
CAUTION: Only an authorized electrician should disconnect the power.
4.
Unscrew the single-piece clear top and remove it.
5.
To remove solenoids, unscrew them from the base, taking care with the
wires.
6.
To disassemble the proximity or micro-switch mounts, disconnect the wires,
then unscrew the round-head screws holding the switch to the switch blocks.
See Figure 24 on page 23.

Micro-Switch

A mechanical switch using a lever arm and roller that is compressed or
released by stem movement.
AC/DC 24VDC or 110VAC
The position of the actuator stem is felt by a roller

Proximity Switch

IP67 sealed, inductive coil switch
AC/DC
The position of the actuator stem is detected by a sensor at the target printed
on the switch
95-03076
Waukesha Cherry-Burrell
August 2008

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