SIS Side Intake Filtered Fresh Air Supply Units

SKU#:

SIS Series

An economical fresh air supply unit designed as a practical method to meet NFPA 96 separation requirements between supply & exhaust air streams in restaurant applications.   Also suitable for many other applications, such as schools and apartments.

  • Easy on-site addition of customer supplied air supply duct extension between the intake hood and unit provides additional separation where necessary.
  • Filters designed with large surface area for efficient filtration.
  • Weather proof cabinet designed for outdoor roof mounting.
  • Flexible forward curved belt drive blowers operate at low speed and low noise levels.
  • Heavy duty ball bearings suitable for -65º to +250º F.
  • Washable aluminum mesh filter are located in the intake hood (except SIS-20) and are accessible through the hood end cap for ease of service.
  • SIS-20 has a drawer type filter section (not illustrated). The SIS-20 intake hood has a screened inlet.
TYPICAL MAXIMUM CFM @ SP
MODEL1/2” SP1” SP1 1/2” SP2" SP2 1/2" SPMin HPMax HP
CFMBHPFEIFEPact (kW)CFMBHPFEIFEPact (kW)CFMBHPFEIFEPact (kW)CFMBHPFEIFEPact (kW)CFMBHPFEIFEPact (kW)
SIS-923001.360.641.3022001.480.741.4020001.470.841.3918001.450.911.3716001.450.961.371/41 1/2
SIS-1027001.460.671.3824001.420.791.3522001.490.871.4119001.400.961.3317001.440.991.371/41 1/2
SIS-1236001.940.621.8033001.980.751.8329001.900.861.7626001.960.911.8121001.940.881.801/42
SIS-1553002.980.612.6848002.880.742.5944002.900.852.6139002.910.902.6235003.000.922.701/23
SIS-1883004.950.604.3377004.860.734.2671004.970.814.3565004.930.894.3258004.940.934.321/25
SIS-20125009.910.468.45117009.830.568.38110009.890.648.43103009.940.718.4895009.900.768.48210
CFM values listed are summarized for convenience. For full performance data refer to our Delair program.
Power rating (BHP) does not include transmission losses.  Performance certified is for installation type B: Free inlet, Ducted outlet. Performance ratings do not include the effect of appurtenances (accessories).
For expanded FEI dataclick here.
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MODELABDEFGHLMZFILTERS*INSIDE
CABINET
UNIT WEIGHT (LBS)
(without motors & drives)
SIZEQUANTITY
SIS-924 3/8" 19 3/8"10 1/4"11 13/16"6 9/32"7 1/16"7 1/16"19 1/4"16 9/16"21 1/4"16" x 24" x 1"124"x 24"70
SIS-1028 3/8"21 3/8"11 3/8"13 1/8" 7 5/8"8 1/2"8 1/2"20 1/2"18 9/16"25 3/4"15" x 20" x 1"228"x 28" 87
SIS-1232 3/8" 24 5/8"13 7/16"15 5/8" 8 3/8"9 15/32"9 15/32"25 3/8"21 9/16"30 3/4"20" x 25" x 1" &
16" x 25" x 1"
1 & 132"x 32" 117
SIS-1536 3/8" 28 3/8"15 7/8"18 5/8" 8 7/8"8"12 1/2"31 3/16"25 13/16"33 1/2"20" x 28 1/2" x 1" 236"x 36" 175
SIS-1836 3/8" 42 1/2"18 7/8"21 7/8" 7 1/4"6 1/4"11 1/4"35 5/8"32 11/16"40 1/4"20" x 25" x 1" &
16" x 25" x 1"
2 & 236"x 36" 262
SIS-2044 3/8" 49"24 3/4"24 3/4"9 13/16"5 3/16"14 7/16"38 5/8"35 9/16"45 1/2"**20" x 25" x 1"644"x 44" 497

* May not be exactly as shown. Blower assembly may be oriented differently

Replacement Parts

Click your model number below for replacement parts.

  • Roof Curbs.