11
Capture Jet
®
Operation & Maintenance Manual
OM-0
05/0520
17/re
v3/EN
Hood Wiring Details
The Halton hood is equipped with a Timer Panel which fulfils the International Mechanical Code required interlock
which will turn on the exhaust fan serving the hood if an appliance is turned on without also turning on the fan. This is
accomplished with a temperature sensor in the hood that senses elevated temperature in the hood. This temperature
sensor closes a circuit at 95 degrees Fahrenheit which turns on the exhaust fan. All hoods which are ducted to the same
exhaust fan must have their temperature sensors wired in parallel with the sensor on the hood with the Timer Panel.
This hood is typically the same hood that has the lights and/or fan switch. This required interlock circuit is not intended
to act as the primary means of turning on the exhaust fan. The exhaust fan will always remain on for 15 minutes after
the temperature sensor has cooled lower than 95 degrees Fahrenheit, even if the fan switch has been turned off. This
allows a cool down period for the appliance and removal of heat in the space protected by the hood. The timer panel also
has provision for a night circuit which can turn on the exhaust fan if the fire suppression system fires when the kitchen
is unattended and the hood is off. This circuit is wired through one of the micro switches in the fire suppression control
cabinet. Provision is also made for a Make Up Air interlock which can start the Make Up Air fan whenever the exhaust
fan is operating. This circuit is typically wired through one of the micro switches in the fire suppression control cabinet in
order to turn off the Make Up Air during a fire event. Please see the wiring diagram for details about these options.
The Capture Jet fan will typically remain on in Fire Mode to assist with capture and containment of produced smoke. The
Halton Capture Jet hoods are tested and listed to allow the Capture Jet fan to remain on.
Field Connection of Hood Power
Incoming 120 volt power for the hood lights and the Capture Jet fan is connected to terminals in the Timer Panel on top of
the hood.
When hoods are arranged end to end or back to back one switch panel often controls all of the lights in the hood group.
The electrical power will then be field connected from the hood with the incoming power, the hood with the switch panel
and/or timer panel, to the other hoods in the hood group. Remove the cover from the junction box next to the Capture
Jet intake, on top of the hood. Remove wire nuts from green, white and the switched black for the light circuit and add
field wiring to the same wire junctions on the next hood. Not all hoods may have a timer panel or LED lights. Please
refer to the specific job submittal drawings for wiring diagrams customized to the product mix and arrangement of each
jobsite. Submittal drawings supersede the general wiring diagram found in this manual.
