Rev Low Controllers - Spring Air Systems Rev Low Engineering Manual

EXHAUST FAN
MODEL PNU120-RG
950 CFM @ 1.75" W.C.
C/W 120V/1/60
3/4 HP MOTOR
EXHAUST FAN ROOF CURB
EXHAUST DUCT SUPPLIED
AND INSTALLED PER NFPA-96
EXHAUST DUCT ENCLOSURE
FROM BOTTOM OF CURB TO
BELOW ROOF JOIST 24" TYPICAL
HANGER RODS
EXHAUST DUCT COLLAR C/W
1" PERIMETER FLANGE AND
ARRANGEMENT "D" FIRE DAMPER
10" X 8" - 950 CFM @ 1.25" W.C.
REV LOW Hood Controllers
Spring Air Systems Inc. manufacturers a
REV LOW Hood Controller model RPD-P
(For use with gas or electric duct
heaters) for complete single switch
operating of the exhaust/supply system.
The operator rotates the selector switch
to the occupied position and the exhaust
and supply fans energize, the fresh air
damper opens, and the air conditioning
unit economizers open (optional).
addition, the panels may be interlocked
to the shunt trip, surface fire suppression
system or building management system.
Spring Air Systems can also supply the
motor starters from stock.
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Spring Air Systems REV LOW Engineering Manual Revision 2.0 -021902
24.00
10" DIA FLEX DUCT
FINISHED CEILING
24" X 24" DIFFUSER
375 CFM EACH
FROM HEATED MAKEUP
SPRING AIR SYSTEMS
MODEL DD-B-F 6.0/3.92
APPLIANCES
Typical REV LOW Hood Schematic with SFA-IGO
Figure 25
10"
In
10'0" MINIMUM
SPRING AIR SYSTEMS INC.
MODEL RPD20
EXHAUST SUPPLY
OCCUPIED / UNOCCUPIED
SUMMER/WINTER
6.5"
RPD11 Controllers
Figure 26
_
SPRING AIR SYSTEMS MAKEUP AIR UNIT
MODEL SFA10-IGOD
750 CFM @ 0.50" W.C.
0.33 HP 120V/1/60
10"X 24" DUCT DROP FROM SFA10
EXTERNALLY INSULATED
FINISHED FLOOR
MODEL RPD11
EXHAUST
OCCUPIED/UNOCCUPIED
SUMMER/WINTER
4"
SUPPLY