When operation in the Auto-Dual mode allows the
vacuum pump to start and stop more than five (5) times
per hour, select the “Hand” mode and allow the unit to
operate continuously. Excessive motor starts will
shorten motor life.
!WARNING!
Never assume it is safe to work on the unit because it
is not operating. It may be in the “Automatic
Stand-by” mode and may re-start at any time.
FO11OWall safety instructions in the “Preparing for
Maintenance or Service Section V“.
Auto/Demand-O~tional
The QSVI vacuum pump with AutoiDemand controls
accommodates external control signals from an optional
Quincy Demand-A-Matic multiple vacuum pump
controller. With the selector switch in the Local mode,
the vacuum pump will operate exactly as described in
the previously mentioned Auto/Dual description.
In the “Remote” mode, the pump’s vacuum switch is
bypassed in favor of the Demand-A-Matic multiple
vacuum pump controller. The vacuum pump will start,
draw vacuum, unload and shut down on time delay as
determined by the Demand-A-Matic controller.
Electrical Svstem
A wiring diagram is included in the control panel on all
Quincy QSVI vacuum pumps.
NOTE: Due to
continuing product improvement and updates, it is
suggested that the wiring diagram in the control panel
be used when servicing the electrical controller.
NOTE!
Standard motors are open drip proof with a
maximum ambient temperature rating of 104° F.
They are not suitable for salt laden , corrosive, dirty,
wet or explosive environments.
The QSVI series vacuum pumps utilize 460V incoming
power through an across-the-line magnetic starter. A
transformer in the control panel reduces this voltage to
120V for the various controls on the unit. These
controls include the selector switch, vacuum switch,
timer, high air temperature stiety switch, solenoid and
indicator lights. Other incoming line voltages are
available as options. The vacuum pump is provided
with a NEMA 1 enclosure.
NEMA 4.
Indicators and Gau~es
Optional panels include
Main Power- On Light- Indicates when power from
the main disconnect switch has been turned on and
there is live power at the vacuum pump starter and
control panel. This light will remain on as long as
there is power to the unit, regardless of the position of
the control selector switch.
!WARNING!
Always check the power supply disconnect, the main
power-on light may be inoperable.
High Air Temperature Light -
indicates when unit
has reached an unusually high temperature in the
discharge air/fluid mixture. Unit has shut down.
NEVER turn the unit back on until the problem has
been corrected.
Hourmeter - Indicates actual hours of operation. Used
to determine maintenance intervals.
Vacuum Gauge - Indicates the system vacuum in
Inches of Mercury (“HgV) below atmospheric pressure
surrounding the vacuum pump.
Air Outlet Temperature Gauge - Indicates the
temperature of the air/fluid mixture as it discharges
from the vacuum pump. Normal readings are 180 to
22(YF.
Air/Fluid Separator Differential Gauge - Indicates
pressure differential across the air/fluid separator
element. Used to determine separator element change
intervals.
Fluid Level Indicator - The fluid level indicator is a
sight gauge mounted on the air/fluid reservoir and
continually monitors the fluid level in the air/fluid
reservoir.
Vacuum Pump Fluid Filter Maintenance Indicator-
When the white indicator piston moves from the green
zone into the red zone, it is a warning that the fluid
filter is in need of service. The vacuum pump should be
shut down and the fluid filter element replaced.
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