Greenheck Vari-Flow Air Management Systems (472966) - Manual (Page 3)

3 Vari-Flow Air Management System
®
NOTE
Resistive temperature detector(s) may be factory
installed. If so, continue to the next section.
Resistive Temperature Detector(s)
(RTD) Mounting
1. Locate flat area(s) at the top interior of the hood
in front of the filters, towards the front of the
hood.
Center the octagon extension over the hole on
the hood surface.
Cut a 3/4-inch diameter hole into the top of
the capture tank. Make sure the resistive
temperature detector(s) will not interfere with fire
system nozzles and is not within 12 inches of
light fixtures.
Installation
Control Box Mounting
1. Locate an area with enough space to mount the
control box and fasten to the wall.
NOTE
All field installation and wiring of electrical
equipment must be done to meet NEC and local
codes.
CENTER THE OCTAGON EXTENSION RING OVER
1/4 inch Compression Seal
Gasket
Temperature
Sensor
Lock Washer
Nut
Octagon Cover
Exhaust Area
Supply Area (optional)
Sensor Install
Cut Out Area
Top View of Exhaust Hood
.75 to .875 inch
diameter hole
Hood
Surface
OcOOca
Octagon
Extension
2. Insert the compression seal 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
nut on the threaded portion of the compression
seals and tighten securely.
CENTER THE OCTAGON EXTENSION RING OVER
1/4 inch Compression Seal
Gasket
Temperature
Sensor
Lock Washer
Nut
Octagon Cover
Exhaust Area
Supply Area (optional)
Sensor Install
Cut Out Area
Top View of Exhaust Hood
.75 to .875 inch
diameter hole
Hood
Surface
OcOOca
Octagon
Extension 3. Place the octagon box provided over the fitting
on top of the hood, keeping the fitting centered
in the box.
4. Insert the resistive temperature detector (RTD)
into compression seal and tighten to 35 ft-lbs.
NOTE
Control Box may be factory mounted. If so, continue
to the next section.
NOTE
As the control box contains the static pressure
controls, this control box should be mounted in the
space to be controlled. If the control box is mounted
outside of this space, please refer to the Pneumatic
Static Pressure Kit Installation Instructions.
CENTER THE OCTAGON EXTENSION RING OVER
1/4 inch Compression Seal
Gasket
Temperature
Sensor
Lock Washer
Nut
Octagon Cover
Exhaust Area
Supply Area (optional)
Sensor Install
Cut Out Area
Top View of Exhaust Hood
.75 to .875 inch
diameter hole
Hood
Surface
OcOOca
Octagon
Extension
CENTER THE OCTAGON EXTENSION RING OVER
1/4 inch Compression Seal
Gasket
Temperature
Sensor
Lock Washer
Nut
Octagon Cover
Exhaust Area
Supply Area (optional)
Sensor Install
Cut Out Area
Top View of Exhaust Hood
.75 to .875 inch
diameter hole
Hood
Surface
OcOOca
Octagon
Extension
Top View of Exhaust Hood