14
The Fan and Light buttons will be illuminated indicating power is going to the fan(s) and light(s). The system will
start the fan(s) at minimum speed of 30% and will increase up to 100% as the cooking load/temperature
increases until the Exhaust fan(s) are at 100%. The MUA fan(s) will adjust output independent of the Exhaust
fan(s) and maintain building balance. The fan(s) and light(s) will continue to operate when in Auto Run Mode until
all of the following shut down conditions are met: the factory set 30 minute Initial Safety Timer has elapsed, the
cooking equipment has been turned off, the sensor(s) do not detect a temperature above the factory pre-set Low
End Turn Off (88° F) for 3-5 minutes.
The system may also be manually operated by pressing the Light and Fan buttons; however, the system will enter
“Auto Mode” if the system detects a temperature rise associated with cooking operations. If the system changes
from “Manual Mode” to “Auto Mode” because of a temperature rise, it will shut down automatically once the
system no longer detects a cooking operation.
Note:
The system will not shut down manually or
automatically until all the previously mentioned shut down conditions have been met
. For multiple hood
systems, the warmest sensor must cool to the factory set point of 88° F before automatic de-activation can take
place.
WARNING:
It is not recommended to adjust this system except in extreme cases. Please consult factory
before attempting any adjustments.
The microprocessor-based controller contains 4 basic adjustments:
Note: Advanced settings are password protected in the menu of the touch screen display. If your system
is not operating properly, do not attempt adjusting controller before contacting customer support at 800-
322-4036.
The AFC-DCV system is designed to shut down the light(s) and MUA fan(s) and continue to run the Exhaust
fan(s) in the event of fire and activate two Normally Open/Normally Closed (NO/NC) spare dry contacts (may be
used for building alarm, horn strobe, etc.). Terminal STH (Shunt Trip Hot) will also provide 120 VAC for shunt trip
breaker in fire mode.
Maintenance
CAUTION! More than one disconnect switch may be required to de-energize the equipment before
servicing. Ensure all power sources have been disconnected before installing or servicing the system.
VFD(s) can be holding stored energy when main supply has been switched off. DO NOT touch power
connections immediately. Check power terminals for isolation from supply.
•
The Control Box door should be securely closed after opening to avoid tampering or electrical shock.
•
The Control Box is a type1 electrical enclosure and is not watertight. Do not spray, soak, or submerge with
water. Control Box should only be cleaned with a mild cleaner and damp cloth.
•
Hood temperature sensor(s) should be cleaned often to prevent grease build up and ensure a quick response
to temperature changes. Sensor(s) should be cleaned with a mild cleaner to remove grease.
Содержание AFC-DCV
Страница 15: ...15 See Pg 6 ...
