Maintenance; Frequently Asked Questions - Greenheck KFCC Installation, Operation And Maintenance Manual

Maintenance

Daily
If KFCC is configured with temperature interlock,
clean thermostat or sensor with cloth and degreaser.
Keep clean for best performance; can clean weekly
depending upon grease accumulation.
Weekly
Depending on grease production and grease filter type
in the hood, temperature thermostats or sensors can be
cleaned weekly.
Seasonal
If KFCC is configured with temperature interlock, may
have to change temperature settings if ambient kitchen
temperatures fluctuate between summer and winter
seasons.
Whom to call
Contact your local manufacturer's representative.
What to have ready for the call
Sales order, serial number and description of product.
Sales Order Number ________________________
Serial Number ______________________________
20 Kitchen Fan Control Center

Frequently Asked Questions

Regarding Temperature Interlock
What temperature is the thermostat/temperature
interlock set from the factory?
Thermostat style: 95ºF
Digital style: 95ºF set point + 25ºF hysteresis
How do I determine if the KFCC is configured
with thermostat style or digital style temperature
interlock?
Thermostat style interlock uses 5/8-inch diameter
sensor(s) mounted in either the hood capture area
or exhaust collar(s). The KFCC will include a solid-
state relay with a 1-100 minute off-delay dial. Inspect
the sensor diameter or look inside the KFCC for this
solid-state relay.
Digital style interlock uses 1/4-inch diameter sensor(s)
mounted in either the hood capture area or exhaust
collar(s). The KFCC will include a controller with
a digital read out, capable of displaying different
temperature values. Inspect the sensor diameter
or look inside the KFCC for this digital-displaying
controller.
Will the temperature interlock automatically start/
stop the fans?
When connected properly to the fan starters the
temperature interlock will automatically control
the fans without input from the user. However, the
intended use of the temperature interlock is as a
back-up to manual control.
With thermostat style interlock, what is the purpose
of the timer in the KFCC?
The timer is used to delay the shut down of the fans,
to prevent fan on/off cycling while the temperature
in the exhaust duct can reach steady state. Without
the delay, cycling could occur both on startup
or shutdown of cooking equipment. The delay is
typically set at 20 minutes.
How many individual breakers does the KFCC
require?
The number of individual breakers depends the
number of fans controlled and options included in
the KFCC. Each individual fan typically requires its
own breaker. The KFCC main power requires its own
breaker. Each light circuit is typically put on individual
breakers.
Can I still turn my fan on and off?
Yes, the temperature interlock is designed to operate
with a typical on/off switch. The fan may not turn off
immediately after turning the fan switch off, it will
sense when the cooking operations have cooled and
then turn off.
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