User manual TJERNLUND GPAK-J,JT,1,1T (DISCONTINUED) 8504013 REV 3 0997

[. . . ] 3 9/97 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 MODELS GPAK-J GPAK-JT GPAK-1 GPAK-1T DESCRIPTION FOR GAS APPLIANCES WITH A BTU/HR INPUT OF 120, 000 OR LESS FOR GAS APPLIANCES WITH A BTU/HR INPUT OF 120, 000 OR LESS WHICH REQUIRE A POWER VENTER POST PURGE FOR GAS APPLIANCES WITH A BTU/HR INPUT FROM 100, 000 TO 250, 000 FOR GAS APPLIANCES WITH A BTU/HR INPUT FROM 100, 000 TO 250, 000 WHICH REQUIRE A POWER VENTER POST PURGE OWNER INSTRUCTIONS, DO NOT DESTROY !Recognize this symbol as an indication of important Safety Information! NOTE: FLUE GAS TEMPERATURES MUST NOT EXCEED 600oF AT VENT SYSTEM INLET. THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALIFIED, LICENSED SERVICE PERSONNEL FOR PROPER INSTALLATION, ADJUSTMENT AND OPERATION OF THIS UNIT. READ THESE INSTRUCTIONS THOROUGHLY BEFORE ATTEMPTING INSTALLATION OR OPERATION. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN IMPROPER INSTALLATION, ADJUSTMENT, SERVICE OR MAINTENANCE POSSIBLY RESULTING IN FIRE, ELECTRICAL SHOCK, CARBON MONOXIDE POISONING, EXPLOSION, OR PERSONAL INJURY OR PROPERTY DAMAGE. [. . . ] Before the 24V signal reaches the appliance gas valve, it is interrupted by the Power Venter Relay and Fan Proving Switch. When the Power Venter Relay coil receives the 24V signal, the contact side closes completing the 115V circuit to the Power Venter motor. The air movement generated by the Power Venter closes the Fan Proving Switch and completes the circuit to the appliance gas valve. The appliance gas valve will only receive power when the appliance thermostat/aquastat is calling for heat and the Power Venter is operating. GPAK-JT/GPAK-1T SEQUENCE OF OPERATION WIRED TO GAS VALVE: As the thermostat/aquastat senses a need for heat, the internal switch of the thermostat/aquastat will close. The Switch closure completes the 24V electrical circuit to the internal controls of the appliance. Before the 24V signal reaches the appliance gas valve, it is interrupted by the Power Venter Relay/Timer and Fan Proving Switch. When the Power Venter Relay/Timer receives the 24V signal, the contact side closes completing the 115V circuit to the Power Venter motor. The air movement generated by the Power Venter closes the Fan Proving Switch and completes the circuit to the appliance gas valve. The appliance gas valve will only receive power when the appliance thermostat/aquastat is calling for heat and the Power Venter is operating. When the appliance thermostat/aquastat is satisfied, 24V will be discontinued to the Relay/Timer and the Power Venter will continue to operate for a non-adjustable post purge period of approximately 45 seconds. NOTES: While it is impossible to include every possible wiring scenario, the following diagrams represent the most common. If wiring the GPAK to an appliance not equipped with the controls shown on the following diagrams, determine which terminals of the gas valve are considered "HOT" and "COMMON" and follow the steps on the bottom of page 8 for GPAK-J/GPAK-1 or page 9 for GPAK-JT/GPAK-1T. When wiring Power Venter to the gas valve wire all thermostats, zones, circulators and limits as would normally be done if venting into a chimney. NAT If you are unable to wire the GPAK as outlined in these instructions, call our Customer Service department toll free at 1-800-255-4208 for fast assistance. 7 8 9 ALTERNATIVE THERMOSTAT WIRING FOR SINGLE ZONE INSTALLATIONS SEQUENCE OF OPERATION ON PAGE 7 CHANGES AS FOLLOWS WHEN WIRING WITH SINGLE ZONE THERMOSTAT: Adjust the furnace thermostat to call for heat. After a slight delay, the furnace burner should fire. The delay is caused by the Power Venter fan proving switch. The delay will be no more than 4 seconds, if you are unable to detect a slight delay, contact Tjernlund Products, Inc. When the fan proving switch closes, the furnace combustion relay is energized. Normal combustion sequence for the furnace begins: Induced draft furnace blower starts, its proving switch makes energizing ignition control and/or gas valve. DO NOT OPERATE THE FURNACE WITHOUT THE FAN PROVING SWITCH WIRED INTO THE 24V FURNACE CIRCUIT!NOTE: When Power Venter is interlocked with thermostat wire all zones, circulators and limits as would normally be done if venting into a chimney. [. . . ] REPLACEMENT PARTS DESCRIPTION Vent Hood* Motor* Fan Prover* GPAK-J/GPAK-JT Wheel GPAK-1/GPAK-1T Wheel GPAK-J/GPAK-1 Relay GPAK-JT/GPAK-1T Relay/Timer ** (approx. 45 second non-adjustable delay) GPAK-JT/GPAK-1T Relay/Timer** (1 to 10 minute adjustable delay) * These parts are common to all GPAK's ** Either Relay/Timer is suitable for the GPAK-JT/GPAK-1T WHAT IS NOT COVERED Product installed contrary to our installation instructions Product that has been altered, neglected or misused Product that has been wired incorrectly Product that has been damaged by a malfunctioning or mistuned burner Any freight charges related to the return of the defective part Any labor charges related to evaluating and replacing the defective part PART NUMBER VH1-4 950-1020 950-1030 950-1010 950-1011 950-1040 950-0014 950-1067 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. Remedies under this warranty are limited to repairing or replacing, at our option, any product which shall, within the above stated warranty period, be returned to Tjernlund Products, Inc. [. . . ]