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Section VIII - Power$ync II
™
Operation
44 Quincy Compressor
®
- QSD™
The normal operating displays are dependent on the
mode of operation selected. These displays include:
STG 1 OUT TEMP______STG 2 IN TEMP______
COMPRESSOR IS RUNNING IN AUTO DUAL MODE
PRESS ENTER KEY TO SELECT MENU
HOURS______STG 2 OUT TEMP______
This display indicates that the compressor is
running in the Auto Dual Mode and shows the total
number of hours on the machine.
If the system air demand falls below a predetermined
minimum, the compressor will unload and start a timer
that will count down to shutdown. The following display
indicates that condition:
STG 1 OUT TEMP______STG 2 IN TEMP______
COMPRESSOR IS UNLOADED
MINUTES LEFT TO SHUTDOWN ➔ ______
HOURS______STG. 2 OUT TEMP______
The countdown display will alert operators that
the compressor is detecting little or no system air
demand and is operating in the unloaded mode.
It also displays the total time left until the unit shuts
down and goes into standby mode.
If there is no demand for a predetermined amount of
time, the compressor will turn off the main drive (and
fan) motor and wait until additional air is required. If
additional air usage is detected, the machine will restart
automatically. While the compressor is in Standby
Mode, the following message will be displayed:
STG 1 OUT TEMP______STG 2 IN TEMP______
COMPRESSOR HAS TIMED OUT AND SHUT DOWN
**WARNING** WILL RESTART AUTOMATICALLY
WHEN LINE PRESSURE IS______PSIG
If Continuous Run Mode has been selected, the following
message will be displayed after the compressor is started:
STG 1 OUT TEMP______STG 2 IN TEMP______
RUNNING IN CONTINUOUS RUN MODE
PRESS ENTER KEY TO SELECT MENU
HOURS______STG 2 OUT TEMP______
Continuous Run Mode is the second primary operational
Mode and is identical to Auto Dual Mode except the
compressor will not turn itself off and go into Standby
Mode. When the system demand falls below a preset
minimum, the compressor will unload, but it will
continue to run. The following display indicates an
unloaded condition:
STG 1 OUT TEMP______STG 2 IN TEMP______
COMPRESSOR IS UNLOADED
HOURS______STG 2 OUT TEMP______
The last of the three primary operational mode displays
indicates that the compressor has been setup to run with
other Power$ync II
™
machines in a network. This
Network Mode allows several machines to work together
to deliver the greatest number of CFM for the least
amount of power input. The following display indicates
that the compressor has been setup for this type of
operation:
STG 1 OUT TEMP______STG 2 IN TEMP______
RUNNING IN NETWORK MODE POSITION___ OF___
PRESS ENTER KEY TO SELECT MENU
HOURS______STG 2 OUT TEMP______
Besides indicating that the machine is running in
a network, this display also indicates the position
in that network assigned to this particular unit.
Units running in Network Mode will load, unload
and shutdown similar to Auto Dual Mode.
The following display in the operational group indicates
that SHUTDOWN has been pressed.
STG 1 OUT TEMP______STG 2 IN TEMP______
PROGRAMMED SHUTDOWN
HOURS______STG 2 OUT TEMP______
This display indicates that the compressor has been
intentionally turned off and has not experienced
an emergency shutdown. When SHUTDOWN is
pressed, the controller will open the bypass valves
to unload the compressor and then open the
blowdown valve to vent the pressure in the system
piping. When the pressure has been vented, the