User manual TJERNLUND 950-1007 FAN PROVER KIT 8504113

[. . . ] TJERNLUND PRODUCTS, INC. 1601 Ninth Street · White Bear Lake, MN 55110-6794 PHONE (800) 255-4208 · (651) 426-2993 · FAX (651) 426-9547 Visit our web site · www. tjernlund. com MODEL 950-1007 AND 950-1032 FAN PROVER KITS Disconnect power supply to all heating, venting equipment and controls before making wiring connections to prevent electrical shock and equipment damage. REPLACEMENT OF OLD STYLE FAN PROVER SWITCHES PREVIOUSLY MOUNTED ON ELECTRICAL BOX (SEE DIAG. Disconnect power supply to all heating equipment and remove old Fan Prover switch from HS-3, 4, 5 electrical box. [. . . ] Sensing tube assembly with factory calibrated length must be used for Fan Prover to work properly!Cut female quick connect leads off of wires that were connected to old Fan Prover and wire nut these wires to the new leads from 2 foot whip connected to new Fan Prover. Prover leads are not polarity sensitive so connection order on switch terminals does not matter. DIAGRAM A HOUSING WALL COMPRESSION RING BRASS ELBOW FITTING DO NOT ALTER THIS SIDE OF SENSING TUBE SENSING TUBE COMPRESSION RING SENSING TUBE ASSEMBLY CONDUIT MOUNTING PLATE VENTER ELECTRICAL BOX FAN PROVER MOUNTED VERTICAL 6. Reestablish power and run heating equipment through a couple of heating cycles to verify proper operation. REPLACEMENT OF SIMILAR STYLE FAN PROVER SWITCHES WITH THEIR OWN ELECTRICAL BOX (SEE DIAGRAM B) 1. Disconnect power supply to all heating equipment and remove Blue and Yellow leads from old Fan Prover switch and motor lead connections in old Fan Prover junction box. Mount new Fan Prover in a vertical orientation in the same location as old Prover. You can use the old Fan Prover sensing tubing as long as it is not damaged or kinked. Connect the 1/4" aluminum tubing from the Fan Proving Switch to the Power Venter housing using existing supplied fittings. The factory calibrated sensing tube length and compression fittings are critical for proper operation of the Fan Proving Switch. If it is necessary to alter the sensing tube length, ONLY trim sensing tube portion that is on the exterior of the housing. IMPORTANT: DO NOT trim the sensing tube portion that will be mounted in the interior of the housing because Fan Prover will not sense the proper pressure. [. . . ] MAXIMUM LENGTH S ADDITIONAL CONDUIT, AND WIRE ARE ADDED MINIMUM 14 GAGE) 2 FT. MAXIMUM LENGTH UNLESS ADDITIONAL CONDUIT, J-BOX AND WIRE ARE ADDED (MINIMUM 14 GAGE) Rev. [. . . ]