Medivance Arctic Sun 2000, Service Manual

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6. Remove the nut from the top of each solenoid coil being
careful not to unscrew the valve stem (see Figure 7.34). If
necessary, place a blade screwdriver into the slot at the top
of the stem to hold it secure while loosening the nuts.
7.
Remove the solenoid coils from the stems. Note the location
of each and the associated label on the wire. The 3 wires
are labeled FV, BV, and PV. The new solenoid coils will
have to be returned to their proper location.
Removing Solenoid Nuts
Figure 7.33
8. With a 7/16” wrench, loosen the temperature probe and
remove it from the manifold block.
9. Unplug the manifold harness from the Input/Output Circuit
Card by first compressing the tab on the top of the plug. Do
not stress the wires. It may be necessary to unplug the
three closest connectors to gain access. The tabs on these
connectors must be compressed in the same manner to
release them.
10. Replace the harness. Install the new temperature probe into
the manifold replacing the orange rubber washer. Tighten
the probe until finger tight then tighten ½ turn.
11. Check that the valve stems are tight but do not over tighten.
Replace valve washers then each solenoid assuring the
proper location of each (see Figure 7.33 above). Tighten the
nuts onto the valve stems assuring the solenoid covers are
properly aligned with the valve washers.
Removing Temperature Probe
Figure 7.34
12. Reconnect the harness to the I/O board with the connector
tab oriented down. Assure the connector is fully engaged.
13. Replace the manifold in the frame, assuring the wires do not
become pinched or the lines kinked.
14. Reconnect the line onto the circulating pump. Push the lever
on the pump down to latch. Reinstall the back panel.
15.
Check the calibration according to Section 5.1.5 using a
Calibration Test Unit. Recalibrate if required.
I/O Manifold Connector Location
Figure 7.35
PV
BV
FV
Labels
Harness
Connector
Valve
Stem
Valve
Washer
Nut