Tjernlund GPAK-1TR 8504047 Rev B 06/14 User Manual
Page 2

Tjernlund Products welcomes your comments and questions. Call us at 1-800-255-4208 or write to:
Customer Service, Tjernlund Products, Inc., 1601 Ninth Street, White Bear Lake, MN 55110-6794.
TABLE OF CONTENTS
PAGE(S)
*GPAK-1TR* DESCRIPTION .......................................................................................................................................1
SPECIFICATIONS ..........................................................................................................................................................1
*GPAK-1TR* SIZING .....................................................................................................................................................2
INSTALLATION RESTRICTIONS .............................................................................................................................2, 3
INSTALLER NOTES ..................................................................................................................................................3, 4
VENT HOOD LOCATION & INSTALLATION ............................................................................................................4, 5
POWER VENTER INSTALLATION .......................................................................................................................5, 6, 7
ELECTRICAL WIRING ..............................................................................................................................................7, 8
INSTALLATION RESTRICTIONS .................................................................................................................7, 8
SEQUENCE OF OPERATION ..........................................................................................................................8
WIRING DIAGRAM ...........................................................................................................................................8
OPERATION CIRCUIT CHECK ...................................................................................................................... 9
COMBUSTION AIR .........................................................................................................................................................9
DRAFT ADJUSTMENT, SAFETY INTERLOCK & COMBUSTION AIR TEST .............................................................9
MAINTENANCE ............................................................................................................................................................9
TROUBLESHOOTING.............................................................................................................................................10, 11
WARRANTY & REPLACEMENT PARTS ................................................................................................................11, 12
PERFORMANCE CURVE ............................................................................................................................................12
INSTALLER NOTES ......................................................................................................................................................13
VENT HOOD MOUNTING TEMPLATE ........................................................................................................................14
*GPAK-1TR* DESCRIPTION
The *GPAK-1TR* is a complete venting system designed to side wall vent, Natural and LP gas furnaces. Each *GPAK-1TR* comes
with three major components: Power Venter, Vent Hood and Draft Control. The *GPAK-1TR* can handle a maximum BTU/HR input of
150,000. The “T” of the *GPAK-1TR* indicates these kits have a post purge Relay/Timer which allows the Power Venter to continue
operating for a nonadjustable period of approximately 45 seconds after the furnace burner shuts off.
SPECIFICATIONS
1
VENT HOOD
POWER VENTER
ELECTRICAL SPECIFICATIONS
*GPAK-1TR*