ResMed Positive Airway Pressure Device VPAP IV ST - Manual (Page 7)

4
Attaching a H4i Humidifier
The H4i humidifier attaches to the front of a VPAP IV or VPAP IV ST device to provide
heated humidification. These devices automatically detect the presence of the H4i
and no other accessories are required for its use. For more information on using your
H4i, please refer to the H4i user guide.
!
WARNING
• Make sure that the water chamber is empty and thoroughly dried before
transporting the H4i.
• When using the travel bag, always separate the VPAP unit and the H4i and
place the H4i in its pouch.
How to Use the Control Panel
The control panel of your VPAP device includes an LCD screen which displays the
menus and treatment screens as well as a keypad for navigating through the menus
and delivering treatment. The keypad has the following keys:
LCD screen
Keypad
Start/Stop Key
Key Function
Start/Stop
Starts or stops treatment. Extended hold for at least three seconds
starts the
mask-fit feature.
Up
Allows you to increase settings options and scroll through the
menu.
Down
Allows you to decrease settings options and scroll through the
menu.
Left
Performs the function indicated by the guiding text displayed above
it on the LCD screen. Guiding text includes
menu, change, and
apply.
Right
Performs the function indicated by the guiding text displayed above
it on the LCD screen. Guiding text includes
exit and cancel .