Medivance Arctic Sun Stat, Руководство по обслуживанию

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42
Service Manual
Fig 8-34 Remove screws securing manifold to upper bracket
Fig 8-35 Remove hose clamps from back of manifold
8.14 Replace the Inlet/Outlet Manifold Harness
Tools and Supplies required:
• 7/16” (11mm) wrench
• 9/16” (14mm) wrench
• Small flat blade screwdriver
1. Remove the Manifold per (step 8.13).
2. Using a 9/16” (14 mm) wrench, loosen and remove
the nuts that secure the solenoids to the manifold.
Use a screwdriver to remove the old valves.
3. Using a 7/16” (11mm) wrench, unthread and
remove the T3 thermistor from the back of the
manifold.
4. Disconnect the manifold harness from the pressure
transducer.
5. When installing the new manifold harness, prior
to threading in the T3 thermistor, twist the wiring
in the counterclockwise direction 3 full rotations
to preload the wiring so that when threading the
thermistor into the manifold the wires will not be
strained.
6. Ensure the solenoids are installed in the correct
locations (see fig 8-37)
Note : When reinstalling the solenoids, if they are not
installed properly it will prevent the device from
functioning properly.
7. Remount the manifold back into the upper bracket.
8. Perform a calibration (see chapter 9).
Fig 8-36 Manifold Harness
Fig 8-37 Manifold, showing position of the 3 solenoids (step 6)
Fig 8-38 Ground wires installed under the upper right screw
8.15 Replace the Power Supply
Tools and Supplies required:
• Phillips screwdriver
1. Disconnect the jumper from the AC PCB and the
two (2) lower main harness connections on the
power supply board.
2. Using a phillips screwdriver, remove the four (4)
screws holding the power supply to the lower
bracket and carefully remove the power supply.
3. When installing the replacement power supply,
ensure the two (2) ground wire ring terminals are
installed with the upper right screw on the circuit
card.
4. Reinstall the jumper to the AC PCB and connect
the two (2) lower main harness connections on the
power supply board.
FV (Fill Valve)
VV (Vent Valve)
BV (Bypass Valve)