Greenheck Melink IH3 Operations - Manual (Page 19)

XII. Maintenance
Cleaning the Optic Sensors
The Intelli‐Hood Optic Sensors must be cleaned periodically. The time between cleanings will
vary depending on the application and quantity of grease in the airstream of a ventilation hood. Optic
sensors in applications with high amounts of grease may need to be cleaned a 2 or 3 times per month.
Some applications may have optic sensors that can go several months between cleanings.
If the sensors get too much contamination on the lenses, an optic fault will occur. The fans will
run at full speed until the sensors are cleaned and reset.
In order to clean the optic sensors, follow the steps below. Cleaning of the optic sensors may be
performed with the fans on or off.
 Press the pushbutton latches on the sides of the optic box and remove the cover.
 Wipe the lens of the optic circuit board with a soft, moist cloth
 Replace the cover of the optic box ensuring that the cable connecting the optic box cover to the
optic bracket does notis not in front of the lens.
 If the fans were on during cleaning, turn them off.
 Turn on the fans.
Cleaning the Hoods
When doing a general cleaning of the kitchen hood, cover the optic sensors with plastic wrap
and thick tape before using high pressure water, steam or other cleaning chemicals in the hood.
Do not get any of the circuit boards in any other devices of Intelli‐Hood wet.
Cleaning the Temperature Sensors
Temperature sensors rarely need to be cleaned. If extremely large amounts of grease and other
contamination build on the sensor, the probes should be brushed or wiped clean.
Maintenance of Touchpad and Aux Touchpad Devices
Do not use a sharp kitchen utensil or other object to press buttons on the Touchpad or Aux
Touchpad. Press the buttons with human fingers only.
Clean the keypad surfaces with a moist cloth. Light‐duty cleaning chemicals such as Simple‐
Green and 409 may be used.