Installation and Assembly
User Manual 4-3
DMR V4C 3.3 (User Manual) V-4 06-May-2022
WARNING:
Never use the device without an air intake filter installed. Always use the approved filters. Use of
an incorrect filter may impact breath delivery. See Section 2.7, Specifications for filter
specifications and Section 4.1, Installation and Assembly for installation instructions.
WARNING:
Check the condition of the V4C-O2E Oxygen Mixer's air intake filter once a month when used
indoors. If the V4C-O2E Oxygen Mixer is used outdoors or in a dusty environment, the Oxygen
Mixer's air intake filter should be checked weekly and replaced as necessary. Do not wash or wet
the filter as this may compromise its filtration or resistance.
WARNING:
If the Oxygen Mixer's air intake filter appears visibly soiled, replace it even if the recommended
maintenance period has not yet elapsed.
WARNING:
Do not use the V4C-O2E Oxygen Mixer with filters whose flow resistance is greater than allowable.
Doing so may increase circuit resistance and compromise spontaneous breathing. For information
on allowable filter resistances see Section 2.7, Specifications.
WARNING:
Always ensure that any filters are removed from the back of the ventilator before connecting the
gas connection tube of the Oxygen Mixer. Using the V4C-O2E Oxygen Mixer with the ventilator's
air intake filter in place at the back of the ventilator could impact flow resistance of the system.
To assemble the ventilator and Oxygen Mixer:
1. Refer to Figure 4-1 and Figure 4-2. Use the installation tool to attach the side arms to the V4C-O2E
Oxygen Mixer enclosure with four M6 screws and four M6 washers, until fully secured.
Note:
Refer to Figure 4-1 and Figure 4-2. It is recommended to lay the Oxygen Mixer on its side and attach
one side arm, then rotate it onto its opposite side and attach the second side arm.
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