MODEL PS1505 FAN PROVING SWITCH DESIGNED
FOR TJERNLUND AUTO-DRAFT
®
INDUCERS
PURPOSE
SPECIFICATIONS
The Tjernlund PS1505 Fan Prover has been designed to monitor
the pressure within the fan housing only. A motor or wheel failure
will decrease housing pressure and deactivate the pressure switch,
thus preventing combustion
Voltage:
125VA pilot duty at 24 volts AC
300VA pilot duty at 115 to 277 volts AC
15 amps non-inductive to 277 volts AC
Electric Switch:
SPST, normally open snap acting contacts
Electric Connectors:
#6-32 screw terminals with cup washer
Control Set Point:
Nonadjustable
Operating Pressure:
On increasing vacuum pressure rise,
.05 + .02” W.C. with diaphragm in vertical position
Maximum Pressure:
1/2 psi
Operating Temperature Range:
-40
0
to 190
0
F.
Mounting Position:
Diaphragm vertical
Dimensions:
5” diam., 5 1/2” across mounting bracket, 3” high
Weight:
1 Lb. 2 oz.
Finish:
Zinc plated steel
Simple Installation
Mounting Hardware Furnished
Fixed Set Point
TYPICAL OIL WIRING
TYPICAL GAS WIRING
TJERNLUND PRODUCTS, INC.
1601 Ninth Street • White Bear Lake, MN 55110-6794
PHONE (651) 426-2993 • (800) 255-4208 • FAX (651) 426-9547
Visit our web site • www.tjernlund.com
© 1996 Tjernlund Products, Inc.
P/N 8500135 Rev. 1 12/96
FEATURES
TYPICAL INSTALLATION
FLUE PIPE OR BREECHING
1/4” ALUMINUM TUBING
FURNACE PLENUM, WALL OR
JOIST MOUNTING. DIAPHRAGM
MUST BE VERTICAL.
PS1505
SENSING PORT
DRAFT INDUCER
