Flowserve 10-40 39 Access M Worcester Controls - Manual

FCD WCAIM2034-01
(Part 17256)
Worcester Controls 10-40 39 Access M
Mounted Limit Switch (Proximity Sensor) and Solenoid
Installation, Operation and Maintenance Instructions
When shipped for field installation, the limit switch (proximity
sensor)/solenoid assembly will be broken down into subassemblies.
The subassemblies are: (1) the switch (sensor) operator assembly,
consisting of the switches (sensors), bracket, springs and buttons;
and (2) the enclosure (housing), probes, solenoid (if applicable),
control block or air connection block, block gasket, PC board or
terminal strip and cover. Hardware items and gasket are packaged
separately. Retaining rings and O-rings shall be assembled.
Ambient temperature range of Access unit is 0°F minimum to 160°F
maximum.
NOTE: Access M Mounted Limit Switch (Proximity Sensor)/Solenoid
Kits fit only Revision R5 and later 39 Actuators. Included in the
Access M Mounted Limit Switch (Proximity Sensor)/Solenoid Kits is a
Rebuild/Accessory Addition Label which is to be marked and applied
to actuator after switch has been installed.
1. The Access M Mounted Limit Switch (Proximity Sensor)/Solenoid
assembly will be mounted on the right-hand end cap (when
viewed from actuator nameplate) with conduit connection on the
right side of the housing (when viewed from the cover side of the
switch).
CAUTION: When actuator is installed in outdoor conditions, water
can enter the exhaust hole(s) of the control block or air connection
block, and then freeze. Flowserve suggests a cover be used, or
mount the actuator such that the block exhaust hole(s) will not fill
with water.
The “standard” mounting configuration of the 39 actuator to the
valve is in-line, fail-closed. In this configuration, SW-1, as
described in Section 6 and in the wiring diagram, will give
indication when the actuator is in the open position (green LED is
on), or CCW (counterclockwise) limit of rotation. SW-2 gives
indication of the closed position (red LED is on), or CW
(clockwise) limit of rotation. See Section 8 for appropriate wiring
diagram.
NOTE: The CW or CCW rotation of the actuator shaft is determined
when viewing the actuator from the nameplate side of the actuator,
while being able to read the label from left to right.
Fail-open mounting configuration may be obtained by either
inverting the actuator, using in-line coupling or mounting the
actuator cross-line (sizes 10-20) or indexing the coupling
(including valve ball and stem) 90° to the actuator shaft (sizes 25-
40). In these cases SW-2, as described in Section 6 and in the
wiring diagram, will give indication when the actuator is in the
open position (green LED is on). SW-1 gives indication of the
closed position (red LED is on). Actuator shaft rotation will vary,
depending on which fail open mounting is used. See Section 8 for
appropriate wiring diagram.
NOTE: LEDs not offered with 240 VAC single-voltage units.
Printed circuit boards (LEDs) not offered with proximity sensors.
The fail-open wiring diagrams in Section 8 and adjustments in Section
6 are for cross-line or 90° indexed mountings only. For wiring and
adjustments of other fail closed or fail open configurations consult
Flowserve.
2. Remove cover from enclosure.
CAUTION: The longer probe must be in the left hand through-hole
looking at the housing from the cover side. (Both probes are the
same length for the 1039 ACCESS only!)
3. Assemble the enclosure, with probe assemblies, to the actuator
inserting the housing gasket between the actuator end cap and
the housing. Important! Do not apply any grease to the gasket, it
must be installed dry. Secure with four machine screws. For all
ACCESS M units, four threaded tamper proof plugs are installed
over the machine screws. Once installed, no attempt should be
made to remove these plugs. If it becomes necessary to remove
enclosure from actuator end cap, consult Flowserve. Check the
probes for freedom of movement by moving them back and forth
slightly.