Nortec AIRFOG Series - Manual (Page 25)

AirFog Installation Manual | 21
AFE Octo Systems
Octo systems are partially self contained and are between the simple Mini self-contained
installation and the modular AFE systems. The Designer’s drawings and parts list will define the
configuration. The only installation difference between the full modular system and the Octo is
that the vacuum valve and pilot air regulator are located inside the Octo case as illustrated in
Figure 19: Octo Layout and Interfaces.
The Octo interfaces are:
 3/8” O.D. plastic or soft copper water supply line rated at a minimum pressure of 25 psig
 ½” O.D. plastic or soft copper air supply line rated at a minimum pressure of 90 psig
 1/4” O.D. plastic tubing for command air pressure (pilot air)
 Isolation valves for both air and water lines
 Hanging hardware
 Chains
 Threaded rod
 Support anchors
 AFE Control panel
 120 VAC standard electrical receptacle
 Humidity control device (Humidistat)
Installation Procedure
Octo units are designed to be suspended from the ceiling by either a threaded rod or chains.
Octos with nozzles on only one side may also be mounted on a wall or pillar (single sided
configurations). Prior to mounting, ensure there are no obstacles such as duct work, lighting,
large equipment, etc., Please refer to Figure 20: Octo Spray Pattern for further information. The
Octo unit should be installed as high as possible above the floor, any equipment or work space.
Adiabatic cooling maybe uncomfortable to people occupying workstations directly beneath the
Octo systems. The recommended height above the floor is 20 ft (6.1 m) and 18” below ceiling
joists.
When using chains to suspend the Octo, ensure the chains are rated for the units weight (64
lbs) and that all local building codes are followed.
In general:
 Each Octo weighs up to 64 lbs (29 kg).
 Install the four 3/8” NC eye bolts into the four mounting holes on the unit using the supplied
lock washers & nuts.
 Install field supplied supporting chains or rods from the ceiling then raise the unit up into
location and secure in place.
Note: Always hang units, never use a cradle assembly, which can interfere with spray
pattern or restrict access for service.