Nautel NV7.5, Руководство по эксплуатации и обслуживанию

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NV10/NV7.5 Operations and Maintenance Manual Routine maintenance
Issue 3.4 2016-08-03 Page 3-3
Replacing an air filter
The transmitter contains several cotton air filters, contained in the front door and the upper
and lower rear panels. If an air filter becomes damaged, replace it as follows:
Interval
As required.
Parts and tools
• Replacement air filter
• Phillips screwdriver
Procedure
Take the following steps to replace an NV10/NV7.5 air filter:
1. Order a new filter or filters, as necessary. You can order a standard sized filter from
Nautel (Nautel Part # HR 128 ) or from the manufacturer ( 15” x 20” x 2” , American Air
Filter PerfectPleat HC M8 MERV 8, M7 MERV 7, or equivalent) or obtain one from
any local supplier of HVAC supplies.
2. Unpack the new filter and inspect it for damage.
3. Remove the old or damaged filter (see Figure 3.1 on page 3-4 ) as follows:
• For a front door air filter, open the front door and remove the protective metal
cover (two M4 screws) just above the fan filter. Remove the screws and slide up the
cover to allow access to the fan filter bracket’s securing screws. Remove the filter
bracket’s four M4 securing screws. Remove the air filter from the bracket.
• For rear panel filters, loosen the three quarter-turn fasteners at the right-hand side
of the appropriate filter panel. Remove the angle bracket from the right-hand side
of the filter panel and remove (slide out) the air filter.
4. Insert the new air filter into the bracket. As required, reinstall the filter bracket and
protective metal cover for the front door filter, or reinstall the angle bracket on the
right-hand side of the rear panel(s).
5. Dispose of the damaged air filter.