Pentair 255-742-075-844, Руководство по обслуживанию

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NOTE:
When replacing/removing camshaft, make sure not
to damage or mis-align the optical sensor. Hold the
sensor in position while removing camshaft.
6. Move the camshaft backwards, away from the controller.
7. Lift the loose front end up and out.
To install camshaft:
1. Check that the optical sensor is in position.
2. Position camshaft above the valve discs. The arrow on the
cup should be up.
3. Slide the rear of the camshaft into place.
4. Pivot the camshaft close to its final position.
5. The camshaft will push on one or more valve discs. You will
feel resistance as you complete the installation.
6. Move the camshaft down and into position. Force valve
discs to move as needed.
7. Move the camshaft forward. Check that the optical sensor
is in position.
8. Install motor.
NOTE:
The camshaft will position itself to C0 (treated water)
when the controller is powered up.
Wiring Harnesses
The wiring harnesses are designed to fit one way. The
connectors are unique to the port they plug into. The wires are
held in place by clips and the connectors latch in place.
Do not run wires through holes in topplate.
Turbine
Figure 18 - Wire Harness Routing
To remove a wiring harnesses:
Latch
Wire Clips
Slots for Motor and
Turbine Harness
1. Disconnect power to the unit.
2. Remove cover.
3. Remove controller.
4. Remove connections by squeezing the latch on the
connector and pulling out.
5. Pull the harness out of the clips on the top plate.
To install a wiring harness:
NOTE:
Start at the back of the valve and work toward the
controller. This will place any slack behind the
controller. Slack or loose wires can become tangled
in the camshaft.
Slots for motor and
transformer wires
Slots for turbine wire
1. Depending on which harness is being installed, plug the
connector into the motor or turbine.
2. Route the harness through the opening at the back of the
top plate.
3. Place the harness into the clips on the top plate. Do not
leave any slack. Put the motor wire in first, then the turbine
sensor cable second.
4. Feed the wire through the opening on the front of the top plate.
5. If installing the motor harness the connector to the optical
sensor can be clipped in place.
6. Connect the harness to the back of the controller.
NOTE:
If using both a motor and turbine cable harness,
install the smaller motor cable first. Install the
larger turbine cable second. This will lock the motor
cable beneath the wire management clips.
Microswitch (Optional Under the Cover)
The microswitch is located under the cover and is screwed to
the top plate. This switch is turned on/off by a cam lobe on the
camshaft. Its function is to signal that the unit is in-service or
out-of-service (regenerating).
Microswitches are available as kits from Pentair Water or a
standard microswitch can be used as well.
WARNING:
This switch will normally control an event on
another piece of equipment. Be certain of what
effect your actions will have on the
other equipment.
Mounting Holes
To install microswitch:
1. Connect wires.
2. Use self-tapping screws to secure the switch base to the
blind boss top plate.
3. Adjust microswitch distance to cam.
NOTE:
Proper procedure for replacing a self-tapping screw:
A. Drop screw into hole.
B. With a screwdriver, back the screw up
(counterclockwise) until the threads click.
C. Rotate the screw forward (clockwise) until finger tight.
WARNING:
The Pentair Water valve is rated for low
voltage (less than 48 volts) microswitch
components only. Using a high voltage switch
may result in damaged valves or fire and may
interfere with electronic control function.
SERVICE AND MAINTENANCE CONTINUED
26 • AUTOTROL
742/762 Control 255 & Performa Series Valves (263, 268, 268FA) Service Manual