User manual TJERNLUND PS1503 DUCT AIRSTAT FAN PROVING SWITCH REV A 1099

[. . . ] TJERNLUND PRODUCTS, INC. 1601 Ninth Street · White Bear Lake, MN 55110-6794 PHONE (651) 426-2993 · FAX (651) 426-9547 Visit our web site · www. tjernlund. com OWNERS INSTRUCTIONS DO NOT DESTROY MODEL PS1503 The Tjernlund Duct Airstat senses positive pressure in a forced air heating and/or cooling system. The single pole, single throw, snap-acting switch is activated by a diaphragm with integral pressure probe inserted directly into the duct or plenum. [. . . ] Using the two sheet metal screws furnished, fasten the Duct Airstat to the duct or plenum. Sealing gasket must be mounted on pressure probe to ensure minimal air leakage. 1. Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage. Always conduct a thorough checkout when installation is complete. WIRING: All wiring must agree with applicable electrical codes and ordinances. Typical diagrams are shown below. Duct Airstat Duct Booster Electronic Air Cleaner Electronic Duct Heater Humidifier 115-120V TYPICAL MOUNTING LOCATIONS & APPLICATIONS SIDE VIEW SWITCH MUST BE MOUNTED WITH DIAPHRAGM IN VERTICAL POSITION TOP VIEW Branch Run Plenum Duct Booster Trunk Line A B Switch activates Duct Booster by sensing positive pressure on either plenum, trunk, or branch lines as shown in Figures A and B above. ELECTRONIC AIR CLEANERS HUMIDIFIERS FAN OPERATION Switch proves operation of blower by sampling positive pressure. Switch actuates air cleaner by sensing positive plenum pressure. Switch activates humidifier by sensing positive plenum pressure. CONNECTING TO SCREW-IN TERMINALS: To connect to screw-in terminals, use the following procedures: 1. Do not connect aluminum wire to the screw-in terminals on this device. Bend each bare lead around its respective terminal in a clockwise direction and tighten terminal screw. Replace the electrical box cover when connections are complete. GENERAL SPECIFICATIONS: ELECTRICAL RATING: 278 VA Pilot Duty at 24 Volts AC 300 VA Pilot Duty at 115 to 277 Volts AC 15 AMPS Non-Inductive to 277 Volts AC ELECTRICAL SWITCH: SPST, N/O, Snap Action Contacts, Non Adjustable OPERATING PRESSURE / POSITION: On pressure rise at +. 05 + . 02" W. C. (Diaphragm Vertical) MAXIMUM PRESSURE: 1/2 PSI OPERATING TEMPERATURE RANGE: -40 to 1900 F. OPERATING POSITION: Diaphragm must be vertical PRESSURE PROBE: Self-sealing, integral pressure probe DIMENSIONS: 5" Diam. , 5 1/2" Across Bracket, 3" High TROUBLE-SHOOTING: Installations in larger ducts or "dead spots" in duct work may not create enough positive pressure "impact" to activate the Duct Airstat. Contact Tjernlund Products customer service @ 1-800-255-4208 or email us at fanmail@tjfans. com for further assistance. OTHER TJERNLUND PRODUCTS HIGH PRESSURE DUCT FANS DUCT BOOSTER® DUCT & EXHAUST FANS TJERNLUND LIMITED ONE YEAR WARRANTY Tjernlund Products, Inc. warrants to the original purchaser of this product that the product will be free from defects due to faulty material or workmanship for a period of (1) year from the date of original purchase or delivery to the original purchaser, whichever is earlier. [. . . ] This warranty gives you specific legal rights and you may also have other rights which may vary from State to State. Send all inquiries regarding warranty work to Tjernlund Products, Inc. [. . . ]