Airflow Instruments PAN300 Series, Operation And Service Manual

Page: 14 / 40

8 Chapter 2
a. For positive pressure,
high-flow testing,
remove the low flow
nozzle if it is installed.
Then, connect the grey
cast-aluminum cam
lock connector to the
outlet side of the
blower per Figure 6.
Close both cam lock
arms at the same time
to ensure proper fit.
Connect the free end of
the 16-ft (5-m) silicone
Figure 6. Positive Pressure,
High-Flow Set-Up
tube to the pressure tap marked DUCT PRESSURE P3 (+)
on the black square box.
Finally, verify that the
FLOW GRID MODE pressure taps on
the inlet tubes are connected to the
FLOW GRID
pressure
taps, i.e., P1 (+) to P1 (+) and P2 (-) to P2 (-) .
b. For positive pressure,
low-flow testing, add
the low-flow nozzle to
the blower inlet if it is
not installed per
Figure 7. Then,
connect the grey cast-
aluminum cam lock
connector to the outlet
side of the blower per
Figure 6. Close both
cam lock arms at the
same time to ensure
proper fit.
Figure 7. Positive Pressure,
Low-Flow Set-Up
Connect the free end of the 16-ft (5-m) silicone tube to the
pressure tap marked
DUCT PRESSURE P3 (+) on the black
square box.
Fan
Outlet
Cam Lock
Connector
Low Flow
Nozzle
Fan Inlet