Fire Ready Hood
17
1. Using a 1 inch box end wrench and crescent wrench,
loosen the locking nut on the adjustable ball fitting on
both nozzles.
2. Adjust the nozzle so they are angled at a point
halfway between the center of the front and back
burners.
3. After nozzles are correctly aimed, re-tighten the
locking nut on both nozzles.
4. Recheck nozzles are aimed correctly.
Aiming the Nozzles
--
NOZZLE
AIMING POINT
(LEFT)
NOZZLE
AIMING POINT
(RIGHT)
45° TOTAL
INCLUDED ANGLE
OF ADJUSTMENT
IN ANY DIRECTION
Operation
Unit Pre-Suppression Functions
The XRRS functions as a standard ventilation range
hood with the added capability to suppress stove top
fires.
Designed to use over a standard 30 and 36-inch
domestic range, the system relies on input from a
combination of sensors to control the fan and shutoff
power to the stove when the temperature reaches
preset points.
The fans and lights can be turned on and off using the
user interface. The range can also be unlocked via the
user interface. A password may be required to unlock
(turn on) the range. The range may be automatically
locked again after a time limit (default 2 hours) if the
hood system was configured for NFPA 101 compliance.
To comply with NFPA 101, this time limit cannot exceed
2 hours.
If the temperature reaches the cooking detection
temperature setpoint (default 115°F), the hood turns
the fan on (if not already on) and the fan speed control
buttons are disabled. The speed of the fan is no longer
controlled via the user, instead the fan is controlled via
the hood temperature.
If the temperature continues to climb, upon the
temperature reaching the high temperature setpoint
(default 180°F), the hood will immediately lock (shut off)
the range. An alarm will appear on the user interface
warning the user of the high temperature. The dry fire/
fault contacts at this point will switch state (see page 15
for terminal blocks and wiring information).
If the temperature continues to climb, upon reaching
approximately 216°F, the fire suppression system
will discharge, dispersing wet chemical on top of the
appliance and suppress the fire below.
NOTE
System must be armed before operating per the
instructions on page 18.
NOTE
Aiming of the hood nozzles is typically performed by
factory authorized fire equipment distributor during
startup. Do not adjust after startup and arming has
been performed.
