Components - Halton M.A.R.V.E.L. Operator's Manual

FUSIBLE LINK
IR1

Components

NOTE: Refer to Figure 1+2
Equipment
•
IR1, IR2, IR3|
•
Infrared
radiation sensor
(IRIS™)
•
•
•
TS
•
•
Duct
temperature
sensor
•
M.A.R.V.E.L. Installation Operation & Maintenance Manual
ABD
TS
CONTROLLER
IR2 IR3
Figure 2: Multiple Hood M.A.R.V.E.L. Installation
Description
Mount 1 to 4 IRIS™ sensors per hood depending
on the length of the hood.
Calculates an index which averages the
temperature radiation over the sensor's fi eld-of-
view.
Used to detect when one or more pieces of
cooking equipment are turned on and it is
necessary to start the hood fan in idle mode.
Used to measure a rapid change in temperature
of cooking surfaces (for example, cooking
activities) and adjust the air fl ow in the hood to
the required level.
Measures the temperature of the exhaust air.
Located in the hood collar.
Used (in conjunction with the IR Index) to detect
the event of cooking equipment start-up. Duct
temperature is often a better indicator of start-up
in the case of certain types of equipment such
as a gas fryer.
Used to activate the early fi re detection alarm,
activated before the fi re system is triggered.
Exhaust Fan
AIR
FLOW
FUSIBLE LINK
PT
IR1
6
ABD
TS
CONTROLLER
PT
IR2 IR3
Power + Connection Details
Power source: 5 volt DC power
supply located in a 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 ® plenum.
CP
VFD
ST