TJERNLUND PS1505 IN-LINE DRAFT INDUCER FAN PROVING SWITCH 8500135 REV 1 1296 User Manual

MODEL PS1505 FAN PROVING SWITCH DESIGNED
FOR TJERNLUND AUTO-DRAFT

PURPOSE

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

TYPICAL INSTALLATION

FLUE PIPE OR BREECHING

1/4” ALUMINUM TUBING

PS1505

SENSING PORT

®

INDUCERS

DRAFT INDUCER

FURNACE PLENUM, WALL OR
JOIST MOUNTING. DIAPHRAGM
MUST BE VERTICAL.

SPECIFICATIONS

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: -400to 1900F.
Mounting Position: Diaphragm vertical
Dimensions: 5” diam., 5 1/2” across mounting bracket, 3” high
Weight: 1 Lb. 2 oz.
Finish: Zinc plated steel

TYPICAL OIL WIRING

FEATURES

Simple Installation
Mounting Hardware Furnished
Fixed Set Point

TYPICAL GAS WIRING

TJERNLUND PRODUCTS, INC.

1601 Ninth Street • White Bear Lake, MN 55110-6794
PHONE [phone] • [phone] • FAX [phone]
Visit our web site • www.tjernlund.com

© 1996 Tjernlund Products, Inc. P/N 8500135 Rev. 1 12/96