Breas Medical Nippy 3+, Technical Manual, Page: 21 / 46

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Connect the Cooling fan, the blower, the internal and external and Battery
connectors.
Connect the pressure and flow transducers tubes as follows:-
Longest (clear) tube from rear port of flow-head to the flow transducer port P1
(rear)
Green tinted tube from front port on flow-head to front port of pressure
transducer.
Blue tinted tube from middle port of flow-head to flow transducer port P2
(front)
The Blower
Refer to fig 3.
Remove the Control Board.
Release the pipe clip at the blower end of the blower to flow head duct.
Remove the green 2mm tube (above the outlet)
Remove the battery clamp by removing the 2 M4 x 10 screws.
Remove the 6 M4 blower assy retaining screws.
Remove the entire blower assembly.
Reverse this procedure to refit.
The Command Board
Refer to fig 4.
Disconnect the 16 way interconnect lead, the Keypad connector, the display
connector.
Remove the 4 nuts and washers at each corner of the board.
Lift up the board and, when accessible, disconnect the back-light connector.
The Display
Refer to fig 4.
Remove the Command Board.
Remove the 4 hexagon spacers from the mounting studs.
Lift out the display module.
Before refitting or replacing, ensure that the inside surface of the display
window and the surface of the display are spotlessly clean. Any foreign bodies
will show through the display window when re-assembled.
Reverse this procedure to refit.
The Cooling Fan
Remove the three
nylon “xmas tree” fasteners securing the fan to the rear
panel. New fasteners are provided with a new fan.
Disconnect the 3 way fan connector on the control board.
Fit the new fan and reconnect the 3 way connector.