User manual TJERNLUND UC1 UNIVERSAL CONTROL (VERSION X.06) ADDENDUM 8505017 REV B 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. [. . . ] For Draft Inducers with the UC1: Natural draft or winds may be sufficient to close the fan prover switch contacts prior to a call for heat when using the PS1505 fan prover with a draft inducer. Keeping the Pre-Cycle Prover Status Check activated may cause nuisance lockouts. Important: Deactivate the Pre-Cycle Prover status check if installing this board on a new or existing draft inducer installation by pushing the #9 dip switch up or "ON" to disable. LED INDICATOR LIGHTS LED #1 (Amber) Appliance call for heat. LED #2 (Blue) Safety circuit through P1 & P2 (Venter Fan Prover and/or High Limit). Burner circuit is energized with Interlock Relay contact closure from terminal 3 to 4. LED #6 (Red) 115 VAC power supplied to board. P/N: 8505017 ©2005 TJERNLUND PRODUCTS, INC. B 07/05 LED STATUS INDICATORS LED #4 & #5 (Red) Flashing Alternately LED #4 & #5 (Red) Flashing in Unison LED #4 Flashes Continuously* LED #5 (Red) Flashing Intermittently LED FAULT INDICATORS Fault conditions are indicated by counting the number of times LED #4 (Red) flashes. LED #4 Flashes 2 Times LED #4 Flashes 3 Times* LED #4 Flashes 4 Times* LED #4 Flashes 5 Times* Fan Prover was in electrically closed position prior to venter operation. Fan Prover opened for more than 10 seconds during burner cycle but closed within 10 minutes. (Post-Purge options 0, 30 seconds or 1, 2, 4, 8, 16 minutes) = Fan Prover opened for more than 10 seconds during burner cycle. (Venter will run for 10 minutes, attempting to make Fan Prover) = With no call for heat, flashes 3 seconds on / 3 seconds off if microcontroller is working properly. * Investigate cause of Fan Prover short cycling such as; Firing burner at capacities or temperatures exceeding Venter limits, excessive vent pipe runs, elbows directly on venter discharge, high winds, plugged / kinked Fan Prover sensing tube or a faulty Fan Prover switch. In-Forcer model's intake screen and prefilter, if applicable, should be cleaned if necessary. [. . . ] By moving any of the dip switches back to their original position, the fault code will be cleared. NOTE: The UC1 board must have its 115 VAC power supply present when any of the (1-8) dip switches are moved back to their original position for the fault code to clear. [. . . ]