Spencer FastVac Vacuum Cleaning Systems - Manual (Page 4)

4
NOTE: All wiring and electrical adjustments or installation
should be done by a qualified electrician in accordance with the
National Electrical Code and local codes.
Caution: Confirm that the power source is the same as that
indicated on the unit’s name-plate. Incorrect voltage or
improper phase connection may cause motor failure or
other damage.
Use conductors and devices such as circuit breakers,
starters and switches that comply with the National
Electrical Code and applicable local codes.
Install a properly sized overload device and disconnect
dedicated only to the Vortex vacuum producer.
Furnish the Vortex vacuum producer and all associated
electrical devices with a proper ground in accordance with
all local codes and regulations.
System Test Procedure
NOTE: Before running a system test, remove the top cover and
check that the filter cartridge is installed. (If needed, see Filter
Cartridge Installation on page 5.) Also confirm that the dirt can
is securely in place.
NOTE: For stationary models, perform all tests before connecting
the machine to the tubing system. For mobile models, make
sure there is nothing connected to the vacuum inlet valve.
Motor rotation test. Stand clear of the separator inlet; keep
loose items away from the inlet and the vacuum producer. Turn
the machine on. If air is coming out of the separator inlet, or if air
is being drawn into the outlet diffuser, the direction of motor
rotation is incorrect. To reverse the rotation, (a) for a single-phase
motor, interchange motor leads 5 and 8, or (b) for a three-phase
motor, interchange any two of the three line connections.
6 1 /
4
SCREWDRIVER
SLOT
RETAINING NUT
SPRING
VALVE
DISC
ALLEN
HEAD
COUPLING
BODY
SCREEN CAP
VACUUM RELIEF
VALVE
Vacuum relief valve test. With the machine running, cover the
separator inlet with a board or other solid object, cutting off the
incoming airflow. This machine is equipped with a vacuum relief
valve which should open, allowing room air into the Vortex
vacuum producer and bypassing the separator. This is an
important safety provision to protect the vacuum producer from
potentially damaging airflow loss. Check to be sure the motor is
not running above its full load ampere rating shown in the Motor
Data table. If the test is successful, turn the machine off.
Vacuum Relief Valve
Vortex Maximum Recommended Vacuum
Model No. Vacuum H
2
0 H
2
0 CFM
VB-037-B 80 79 25
VB-055-B 81 80 100
Vortex Adjustable Part Pipe
Model No. Spring Range H
2
0 Number Size
VB-037-B 65-100 VLV90317 2”
VB-055-B 65-100 VLV90317 2”
If the valve does not open, adjust the vacuum relief valve setting.
Remove the screen cap, hold the retaining nut or allen head
with a 1/2" wrench and turn the stud with a screwdriver. To
make accurate adjustments, use an ammeter or vacuum
gauge. Do not exceed the full load ampere rating of the motor
(see Motor Data table on page 3 or motor nameplate for rating.)
Caution: If the vacuum relief valve does not operate correctly,
failure of the Vortex vacuum producer may occur. It must not
operate in a low-flow condition.
For stationary models connect the vacuum tubing network to the
separator inlet using supplied rubber sleeve and clamps to
isolate the machine from stress, vibration and tubing movement.