Halton M.A.R.V.E.L. Operator's Manual page 7

Equipment
•
PT
Hood plenum
pressure
sensor
NOTE: For multiple hood installations with a single
ABD
exhaust fan only
•
Automatic
balancing
•
damper
•
Alarm light and •
•
audible alarm/
buzzer
NOTE: To easily diagnose the alarm, use the remote
Konsole™ Diagnostic Software.
Override push
•
•
button
Room •
temperature
sensor
•
VFD
Variable
•
Frequency
Drive
•
M.A.R.V.E.L. Installation Operation & Maintenance Manual
Description
Used to calculate air fl ow in a hood in real time.
Adjusts air fl ow with motorized balancing
dampers attached to a collar at each hood.
Damper controlled by a 0-10 V DC position
reference signal generated by a controller.
Upon power failure, the automatic balancing
damper fully opens.
Activated when any alarm condition is detected.
Common alarm conditions include: fi lter missing,
fi lter clogged, fi re suppression system activated,
duct temperature dangerously high, sensor
failed, or VFD is in fault.
Used to override pre programmed operation.
Two modes:
1. Press and hold for 1 second to accelerate
the exhaust rate to 100% of the design air
fl ow for a pre programmed period of time
(default 5 minutes.)
2. Press and hold for 3 seconds to accelerate
the exhaust rate to 100% of the design air
fl ow for a pre programmed period of time
(default 1 hour.) Starts the hood if it has
been overridden by a schedule or an 'off'
state.
Mounted on a kitchen wall close to a thermostat.
Controls the speed of a three-phase fan motor
by changing the frequency of the current to the
motor.
For smaller fans, mount the VFD in a cabinet
attached to a hood.
For larger exhaust fan units, attach the VFDs to a
fan unit or cabinet or mount remotely.
Power + Connection Details
Power source: 24 V DC power
supply located in a control panel.
Connection: at terminal block
located behind a cover on the
Capture Jet
Power source: 24 V AC
transformer located in the control
panel.
Connection: at terminal block
located behind a cover on the
Capture Jet® plenum
Connection: at terminal block
located behind a cover on the
Capture Jet
Connections: to the control panel
with 2 wires
Power source: varies as per fan's
voltage requirement
Connection: at terminal block in
VFD control panel to main control
panel
Speed reference: 0-10 VDC
7
® plenum.
® plenum.