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6
DC power test
1 Turn off the flow generator at the mains.
2 Connect the DC/DC converter into the flow generator.
3 Connect the converter to a DC power source (12V battery or bench top power supply capable of
supplying 3 amps or more).
4 Turn on the unit and confirm that the unit powers up.
5 Turn off the unit, remove the DC/DC converter, and reconnect it to mains power.
7
H4i test
The VPAP range is designed to integrate with the H4i heated humidifier to form a single flow
generator with humidification unit. The flow generator automatically detects the H4i docking
station when it is connected to the flow generator.
Warning
The H4i can reach a maximum temperature of 85°C.
!
1 Switch off the flow generator.
2 Remove the power outlet plug from the front of the unit.
3 Attach the H4i to the flow generator, as shown below:
4 Switch on the flow generator and observe the LCD screen. After a Welcome message is
displayed, the LCD should display the warm-up feature prompt. If the Mask fit screen is
displayed, press the Right key to exit.
5 Turn the control dial to five (IIIII).
3 General inspection and servicing
11
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