Submittal Sheet

Combustion Air Systems
Models CAS-3, 4, 4P, 4mV
GENERAL SPECIFICATIONS
Air Flow @ 0 static pressure (Hi speed, fan unit): 325 cfm
Air Flow @ 1.0" w.c. (Hi speed, fan unit): 130 cfm
Weight* (as shipped): 14 lb.
Dimensions* (in.):
Inlet Dia.:
OD:
H:
A:
6
10-1/4
12-1/2
9-1/4
Sound Level*, dB @ 36" (Hi Speed) 68
RPM (Hi speed): 2600
Motor Voltage (VAC):
Motor Amps. (max.):
Control Input Voltage:
CAS-3:
CAS-4, -4P
CAS-4mV:
115 single phase
0.80
120 VAC
24 VAC
switched
Features:
• ETL certified under UL 507 and CSA C22.2 No. 113-M1984 standards, Report # 99*21108-1.
• High-efficiency blower wheel with integral sealed ball bearing thermally protected motor.
• Fan-proving safety switch interlocks with appliance control system.
• Includes 4” intake hood, 6-4” reducer, wall-mounting brackets, wiring connectors and grommets, and flow-
restricting orifice pan.
• Hi-Lo speed selector switch mounted on wiring panel.
• CAS-4P includes ADA-1 adapter harness, for easy control wiring to appliances with a 24-volt automatic
vent/flue damper.
• CAS-4mV works with 750-millivolt power-pile pool heaters, boilers, etc.
*: Figures are approximate.
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6-5/8”