Figure 5.1
Maintenance Schedule
EACH
USE
NEW
BLOWER
FIRST 3
HOURS
EVERY
MONTH
OR 10
HOURS
EVERY
MONTH
OR 25
HOURS
EVERY
MONTH
OR 50
HOURS
EVERY
MONTH
OR 100
HOURS
TENSION BELT(S)
%
%
REPLACE BELT(S)
%
INSPECT BLOWER FOR DAMAGE,
FIX IF ANY
%
INSPECT BLOWER FOR LOOSE OR
MISSING BOLTS, NUTS,
ATTACHMENTS. TIGHTEN OR
REPLACE WHERE REQUIRED
%
PPV Set-up Procedures
Single Blower Placement
When using one blower, it should be positioned so that the cone of
pressurized air
just covers
the entrance opening
(Figure 5.1)
. If the blower is too close to the
opening, the opening will not be completely covered by pressurized air. If the blower is too far
from the opening, pressurized air will strike the building around the opening and reduce the
amount of pressurized air being forced inside the building. Therefore, optimum placement is
dependent on the size of the entrance opening, the size of the blower, and the distance between
the blower and the entrance opening.
Due to the size of the "cone" of air issued from a blower, small blowers need to be moved back
from entrance openings while larger blowers should be placed closer to entrance openings to
properly cover the opening with pressurized air.
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