User manual TJERNLUND HS3,4,5 WITH UC1 UNIVERSAL CONTROL (VERSION X.06) 8504111 REV C 0705

[. . . ] 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 IMPORTANT!!!UC1 BOARD VERSION X. 06 UPDATES NEW X. 06 VERSION UC1 BOARD FEATURES IMPORTANT: This upgraded circuit board features: A new #6 power LED Constant red when 115 VAC is supplied to L & N. A new color for the #2 LED Constant blue when fan prover safety circuit is closed. A revised #5 LED With no call for heat present, flashes 3 seconds on / 3 seconds off if microcontroller is working properly. New LED # 6 RED 115V power supplied to UC1 L & N terminals P1 P2 C GND F LED 6 (RED) POWER LED (1 9) LED # 2 now BLUE (previously GREEN) LED # 5 RED With no call for heat, flashes 3 seconds on / 3 seconds off if microcontroller is working properly. LED 1 (AMBER) LED 2 (BLUE) LED 3 (GREEN) LED 4 (RED) LED 5 (RED) DRY 24 V 115 V J1 J2 XL XN N M MTR APPLIANCE INTERLOCK RELAY VENTER MOTOR RELAY AB 1 2 3 4 LN IMPORTANT: For 950-8804 UC1 Replacement Board Kits: If this is a 950-8804 UC1 board kit and you are replacing an existing UC1 board with this new board, note Dip Switch settings on existing UC1 circuit board so that those same settings can be positioned on this replacement circuit board. [. . . ] If it is desirable to mount the UC1 more than 2 feet from the Fan Proving Switch an additional electrical junction box and appropriate length of conduit will be necessary. Any added wire should be 14 gage and a pig tail should be added to each ground wire connection so that each electrical junction box is grounded. See diagram on page 8 for a typical UC1, Fan Prover and Venter installation. MODELS HS4 & HS5 (ONLY) Connect Black and White motor ring terminal leads to ring terminal studs on motor. Connect Ground Lead to ground screw on motor. IMPORTANT: Motor should be factory wired for proper rotation. As viewed from the opposite end of the shaft (rear of motor), the motor should rotate clockwise. See motor nameplate for proper rotation. ALL MODELS (See diagram on page 8 for typical installation) 1. Connect ground wire from UC1 whip and Venter motor ground wire to ground screw in Fan Prover junction box. Connect Black and White motor leads from UC1 whip to Venter motor leads in Fan Prover junction box. Connect Blue and Yellow leads from UC1 whip to Fan Prover switch terminals. MULTIPLE APPLIANCE INTERLOCKS To interlock with one additional 24/115 VAC heater add the MAC1E. It is a stripped down auxiliary board version of the UC1 and is powered by and communicates with the UC1 through a factory wired whip. To interlock more than two 24/115 VAC heaters, add the MAC4E for a total of up to 5 heaters. It is powered by and communicates with the UC1 through a factory wired whip. Consult factory for installations with more than 5 heaters. To interlock a millivolt water heater and a 24/115 VAC furnace or boiler, add the WHKE and MAC1E. MILLIVOLT HEATER INSTALLATIONS Each millivolt appliance interlocked with the UC1 must have its own WHKE kit installed. The WHKE Gas Pressure Switch actuates the Venter through the A - B Dry contacts. The Linear Limit switch disables the heater in the event of a venting malfunction. IMPORTANT: Each millivolt appliance interlocked with the UC1 must have its own Linear Limit spill switch. [. . . ] This warranty covers defects in material and workmanship. This warranty does not cover normal maintenance, transportation or installation charges for replacement parts or any other service calls or repairs. This warranty DOES NOT cover the complete Venter if it is operative, except for the defective part. 1. ) Follow troubleshooting guide to determine defective component. [. . . ]