Ohmeda Ohio Care Plus, Operation, Maintenance, Service Manual And Installation Instructions

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Appendix
A-5 A-5
A. Loosen the six mounting screws that secure the humidifier fill tray rails so that
you can slide the rails out along their mounting slots. Remove the cable clip
that secures the temperature sensor cable underneath the base platform. The
rails must drop down 3/16" (the height of the plastic spacer on the mounting
screw) to slide into the lower back half of the slot. Before repositioning the rails,
the mounting screw heads were above the rail surface, now they are recessed
inside the slot. Do not tighten the rail mounting screws at this point.
12. Install the new back rail by placing it flat against the back inside wall of the base
platform. Attach the back rail, but do nut fully tighten the two back rail mounting
screws yet. Tie wrap the sensor cable to the rail cables (this prevents the cable
from being damage when the fill tray is inserted).
13. Attach the sensor connector strain relief to the two sensor connectors as shown
in Figure A-3.
Figure A-3
Humidity sensor cable connector attachment
14. Slide the two side rails all the way back into the pockets in the back rail, and
secure them in position by tightening the remaining four mounting screws. Now
fully tighten the two mounting screws that secure the back rail.
15. Secure the temperature sensor cable with the cable clip and screw on the right
hand side tray rail.
Note: For incubators with continuous mattress tilt, to facilitate installing the
humidifier controller remove the left hand tilt knob assembly. However, do not
remove the knob assembly mounting hinge.
16. Insert the new servo-controlled humidifier fill tray and lid assembly to check that
the connectors on the back rail properly engage the connector on the back of the
tray lid. Now remove the tray and lid assembly to facilitate installing the controller.
17. Connect the green and yellow ground wire from the connector on the back rail
to the grounding stud on the inside bottom rear of the controller housing with the
lock nut provided.
18. Connect the humidity sensor cable wire to J3 on the control/display board.
Connect the heater power wire to J4 on the control/display board. Connect the
microswitch and heater signal wire to J5 on the control/display board.
CI.18.006
jumper
red
white