solution, system reliability is increased, maintenance is possible without shutting down all zones, and capital cost is often reduced.
(2)It is recommended that air free of oil and moisture (control quality air) be used with AIRFOG systems. All air compressors will produce moisture, which must be removed using a refrigerated air dryer. Excessive amounts of water in the air lines will reduce nozzle performance, and in extreme cases will prevent the nozzle from producing any mist. Oil must also be removed from the compressed air through the use of oil removal filters.
(3)Air pressure loss can be managed by reduction in the air pipe length, elimination of unnecessary elbows, valves and flow restrictions, increasing the diameter of the primary delivery pipe to the zones and elimination of leaks.
E.OLDER NORTEC AIRFOG SYSTEM COMPONENTS
(1)This document is applicable to all NORTEC AIRFOG system components purchased after February 2004. If the designer has existing system components purchased prior to February 2004, the Nortec Technical Service Department should be consulted to determine compatibility with the newer equipment, parts and external interfaces.
F.INSTALLATION TOOLS AND EQUIPMENT
(1)The designer should have already provided drawings of the proposed AIRFOG humidification system physical layout. These drawings and parts list should clearly identify the system components by name and part number, physical spacing, zone identification and comments on nozzle location and pointing directions.
(2)During installation there will be a requirement to:
(a)Attach mounting brackets to walls, ceilings or other structures, which may be higher than six feet off the floor.
(b)Cut and join copper, stainless steel or plastic pipe using standard plumbing joining techniques.
(c)Connect low voltage wiring to the control panel.
(d)Connect plastic tubing.
(e)The installer should have all the tools and be certified to perform these plumbing, mounting and electrical tasks.
G.PARTS
(1)A parts list should be included with the drawings developed by the designer. Not all the necessary parts are provided by Nortec. The following parts are supplied by others:
(a)Pipe, elbows, pipe hanger and mounting hardware for inside HVAC units, T- joints, pipe size adapters, Teflon sealing tape and other plumbing supplies from a local plumbing supplier. Pipe material is either copper, stainless steel or plastic and should be specified on the designer produced drawings.
(b)Wire for the electrical connections is 18 gauge standard insulation, which can carry 24 Volts AC at 1 amp. This wire can be purchased from most electrical
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