Section II - Description
Remote Fault Alarm
A remote alarm relay is built into the
controller to facilitate an alarm connection
remote from the dryer. This can activate at
the service due period or with a predefined
number of electrical faults or both. This can
be enabled or disabled using the software
interface.
The alarm requires a power source to
be brought to the controller and on
activation the controller will switch on in
an alarm condition. This in turn can be
used to activate a remote audible or visual
indicator.
Energy Management Feature (EM)
The purpose of the energy management
feature is to save energy by reducing
compressed air consumption during
periods of low demand by interrupting the
normal purge cycle.
This feature can be activated with a link
from the receiver upper and lower pressure
switches normally fitted to receivers.
Where the compressor is a continually
running type or the dryer is remote from
the receiver, a dewpoint dependent
switch can be used to activate the energy
management feature.
The energy management feature is
supplied activated on all controllers. When
connected to an external switching system,
the energy management process will
become operational. For systems where
energy management is not required, a
jumper link is fitted to the supplied DIN
plug.
To allow conditioning of the dryer
desiccant beds to optimum condition,
the controller has been programmed to
delay Energy Management operation six
hours from the time of a new installation or
from service. Once this time has elapsed,
the energy management feature will be
activated.
Energy Management Memory Retention
Energy savings are made in the dryer by
interrupting the normal purge operation
during periods of low demand. To maintain
the equilibrium of the dryer towers, the
dryer has a memory retention feature. This
allows the dryer to remember the point
in the operating cycle when the energy
management feature was activated and
return to it to complete the cycle.
Quincy Compressor-QMOD 7
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