Installation
Optional added features
The unit can be configured to suit customer specification.
These optional extras would be discussed, arranged and
installed prior to delivery.
(
If unsure what features your system is equipped with
please contact the seller with the unit serial number,
(Refer to section
2
for location)
who will be able to advise
what specification has been supplied.
Remote Stop/Start feature
Enables the extraction unit to be remotely turned On / Off
via an external signal.
Note: Care must be taken to ensure that the system is
correctly wired in order for the extraction unit to function
correctly.
DC Voltage input
This configuration requires the Black & Red cores of the
signal cable (Refer to section
1
for location) to be connected
to a known and tested DC power supply, in order to start the
extractor. The signal needs to be connected to a double
insulated DC power supply.
The operating voltage for this signal is 24VDC. Only this
voltage should be connected. Voltages connected outside of
this range may cause irreversible damage to the relay.
Red cable = V+
Black cable = V-
When the extractor is provided with the correct DC voltage
the motor will start and maintain the set flow rate (Refer to
section
5
for how to set the flow) when the DC voltage is
removed the motor will slow down and come to a stop.
The extractor will need to be turned on (See section
5
for
turning the extractor on) in order for this feature to operate.
Override
Enables the extractor to operate fully with or without either
DC voltage input or the Volt free input.
The override feature can be toggled On / Off by a switch
mounted on the internal motor access panel (see below for
switch location)
Switch in “On” position
In this position the extractor will require a start signal (either
Voltage input or Volt free, depending on the requested
specification) to enable the motor within the extraction unit.
Switch in “Off” position
In this position the extractor motor will run without the
requirement for an external start signal. This feature is
useful for engineers carrying out works/ tests on the
extractor without the need for the laser / auxiliary signal
being present.
Filter Blocked / System Fail Signal
With this option the extraction system will output a signal to
alert the user when the extractor has failed or when the
filters are blocked.
This feature will not directly stop the extractor from running
correctly, but if fitted this feature should be terminated
correctly before power is applied to the extraction system.
Connection specification
This signal is available via the Green and White cores of the
signal cable. The system will provide a volt free Open /
Closed signal that can be connected to an external interface,
beacon or warning device following the specification below.
The signal needs to be connected to a double insulated DC
power supply.
•
Maximum input voltage: 24V AC
•
Maximum current load: 3A @ AC
OR
•
Maximum input voltage: 24V DC
•
Maximum input load: 3A @ DC
Filter Signal
When the filters become blocked or the system develops a
fault the connection between the Green & White cables will
become “Open”
When the extraction system is running normally the
connection between the Green & White cables will become
“Closed”
03
4
