STANDARD CONSTRUCTION
NTS non tempered make-up air units are available in four housing sizes
incorporating eight blower sizes (9” through 20” single
blower units and 18” through 20” twin blower units) with
air flow capacities of 600 to 30,000 CFM and total static pressures
up to 4” W.G.
These fans offered in a choice of four housing and five curb/mounting
arrangements with three discharge orientations. Construction features
include:
- HOUSING:
- Heavy gauge weatherproof galvanized steel housing
- 1” thick 3# density fiberglass insulation
- Large gasketed access panels with draw-tight tooled fasteners
- Heavy gauge base frame with lifting lugs
- Intake hood with bird screen
- V-bank filter rack
- 1” permanent filters
- BLOWER SECTION:
- Forward curved, double width, double inlet blowers
- Statically and dynamically balanced blower wheels
- Precision machined shafts and sealed ball bearings
- Adjustable motor mount and drives with belt selected for 165%
of motor horsepower
- ODP motor (three phase 1HP and larger are EPACT high efficiency
rated)
- Blower and motor mounted on vibration isolators
- Down discharge
Construction/submittal drawings and performance data are available in PDF format, with some drawings in standard (read only) and form (text boxes) format. You will need Acrobat Reader to view and print standard format or Adobe Acrobat to utilize text boxes. Acrobat Reader is available at no charge from the Adobe Website. You will be able to follow the links below to open and view. Use the back arrow to return to this page.
Available Submittal Drawings:
OPTIONS AND ACCESSORIES
Standard options include:
- HOUSING
- Standard intake with flat filters
- Extended intake with flat filters
- Flat filter section in intake hood
- Delete intake hood
- Foil faced insulation
- Double wall insulation
- Painted housing
- Stainless steel housing
- End discharge
- Top discharge
- Duct adaptor
- Four way discharge head
- Floor rubber in shear isolators
- Floor spring isolators
- Hanger spring isolators
- Vertical unit
- Equipment stand for vertical unit
- FILTERS
- 2” permanent filters
- 1” disposable filters
- 2” disposable filters
- 1” 30% filters
- 2” 30% filters
- MOTORS
- TEFC
- Two speed, two winding
- Two speed, one winding (three phase)
- Premium efficiency (three phase)
- MOTORIZED DAMPER
- Low leakage opposed blade damper
- Two position spring return actuator
- Intake or discharge mounting
- End switch
- Return air damper with numerous actuator options
- CONTROLS
- Fan disconnect switch (non-fusible or fusible)
- Single point pre-wired motor control center with main fusible
disconnect, starter(s) and fused transformer (located within unit
or remotely)
- Exhaust fan starter
- Remote control panel
- Remote control panel with indicator lights
- Low temperature limit switch (freezestat)
- Clogged filter switch with indicator light
- Convenience outlet (service receptacle)
- Time delay relay
- Time clock (seven day)
- Smoke detector
- Variable air volume with frequency drive
Contact the factory for any other options or accessories not listed.
PERFORMANCE DATA
Model NTS
TYPICAL SPECIFICATIONS
(LINK)
