Greenheck Kitchen Fan Control Center (475730) - Manual (Page 5)

5 Kitchen Fan Control Center
Thermostat - Duct Collar Mounting
1. Locate the exhaust duct on top of the hood. A 1 1 ⁄
8
to
1¼-inch (28.58 to 31.75 mm) diameter hole must be
cut into the duct 2 inches (50.8 mm) above the hood
top. Center the hole along the side of the duct. Make
sure that the thermostat will not interfere with any fire
system nozzles, or other items installed in the exhaust
duct. If an exhaust fire damper is present the hood
exhaust collar, it must be removed prior to thermostat
installation.
2. Place the J-box plate inside of the octagon extension
ring and place over the hole.
3. Insert the Evergreen Quik-Seal fitting into the hole
from the inside of the duct, making sure the gasket is
placed on the fitting before inserting it into the hole.
Install the J-box plate, lock washer, and 1-1/2 inch
(38 mm) nut on the threaded portion of the Evergreen
Quik-Seal fitting and tighten securely.
4. Thread the thermostat through the Quick-Seal and
tighten to 35 ft-lbs.
5. Refer to Electrical Connections section for
instructions on wiring the thermostat.
6. Install the cover for the octagon box.
Gasket
1/2 inch Quik-Seal
PN 451168
Nut
Lock Washer
Octagon Extension
PN 830125
J-Box Plate
PN 732396
Octagon Cover
PN 380926
Thermostat
PN 383923
NOTE
The thermostat will be provided only if the thermostat
style temperature interlock option was configured/
ordered with the unit. If it wasn’t, continue to the next
section.
The thermostat may be factory installed. If so,
continue to the next section.
2 inches
(50.8 mm)
Hood Exhaust Collar
(front side)
(28.58 to 31.75 mm)
®