Greenheck Temperature Interlock (471738) - Manual (Page 3)

3 Temperature Interlock
Installation
Control Box Mounting
Locate an area with enough space to mount the control
box and fasten to the wall. Avoid installing the control
box in environments with high magnetic and/or radio
frequency interference.
3. Place the junction box provided over the fitting on
top of the hood, keeping the fitting centered in the
box.
4. Thread the thermostat into the compression seal
fitting and tighten to 35 ft-lbs. (4.84 m-kgs) .
Hood Plan View
19.525 inches
3 inch air space
2 inch typical Exhaust Area
Supply Area
(optional)
Sensor Install
(cut out area)
1. Locate the flat
area(s) at the top
interior of the hood
in front of the
filters, towards the front
of the hood. A 1
1 ⁄
8
to
1¼ inch ( 28.58 to 31.75
mm) diameter hole must
be cut into the top of
the capture tank. Make
sure the thermostat will
not interfere with the fire system nozzles and is not
within 8 inches
(20.32 cm) of the light fixtures.
Hood Surface
(28.58 to 31.75 mm)
2. Insert the Evergreen Compression Seal fitting into
the hole from the inside of the hood, making sure the
gasket is placed on the fitting before inserting it into
the hole. Install the lock washer and 1
1 ⁄
2
inch (38 mm)
nut on the threaded portion of the compression seal
fitting and tighten securely.
Exploded View (Components)
Gasket
Compression Seal
PN 452614
Nut
Lock Washer
Octagon Extension
PN 830125
Junction Box Plate
PN 732396
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. 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 lock washer and 1
1 ⁄
2
inch (38.1 mm) nut
on the threaded portion of the Evergreen Quik-Seal
fitting and tighten securely.
3. Place the junction box provided over the fitting
and tack weld the junction box to the exhaust duct
keeping the fitting centered in the box. (Welding
optional).
4. Thread thermostat into Evergreen Quik-Seal fitting
and tighten to 35 ft-lbs (4.84 m-kgs) .
Gasket
1/2 inch Quik-Seal
PN 451168
Nut
Lock Washer
Octagon Extension
PN 830125
Junction Box Plate
PN 732396
Exploded View (Components)
2 inches
(50.8 mm)
Hood Exhaust Collar
(front side)
(28.58 to 31.75 mm)
NOTE
Control box may be factory mounted. If so, continue
to the next section.
Thermostat Installation - Hood Mounting
Recommended thermostat mounting location is in the
flat interior of the hood and at least 8 inches
(20.32 cm)
from light fixture.
NOTE
All field installation and wiring of electrical equipment
must be done to meet NEC and local codes.
®