Tjernlund GPAK-1TR 8504047 Rev B 06/14 - Manual (Page 3)

*GPAK-1TR* SIZING
Verify that the *GPAK-1TR* you are about to install is properly applied to the furnace.
When installing the *GPAK-1TR*, confirm that the BTU input of the furnace is 150,000 or less. All BTU/hr. capacity ranges are
based on a maximum of 30 linear feet of vent pipe with no more than 3 elbows. All furnaces have a 3” flue connection as shipped
from the factory. Use 4” pipe and use a 3” to 4” transition at the furnace.
WARNING: NO 34 INCH 80+ FURNACES WITH 45,000 OR 67,500 BTU INPUT CAN BE USED WITH ANY AUXILIARY
POWER VENTER UNLESS THE FURNACE’S ORIGINAL 0.10 W.C. PRESSURE SWITCH, (PART NUMBER
42-24064-03) IS REPLACED WITH A 0.30 W.C. PRESSURE SWITCH, (PART NUMBER 42-24064-01).
1. All vent materials located between the furnace and the power venter inlet must be type “B” double wall vent pipe.
2. Single wall reducer(s) may be used to connect a barometric damper to the double wall vent pipe.
3. If the power venter is not directly connected to the inlet of the Power Venter Vent Hood, a sealed vent pipe must be used
between the power venter outlet and the vent hood inlet. SEE *GPAK-1TR* POWER VENTER INSTALLATION AND
OPERATION INSTRUCTIONS FOR ADDITIONAL INFORMATION.
I
INSTALLATION RESTRICTIONS
ALLATION RESTRICTIONS
Do not install the Power Venter on an appliance with an automatic valve having a manual opener unless the manual opener has been
rendered inoperative or the automatic valve has been replaced with a valve not equipped with a manual opener.
IMPORTANT:
UNDER NO CIRCUMSTANCES CAN ANY STANDING PILOT FURNACE BE HORIZONTALLY VENTED.
UNDER NO CIRCUMSTANCES CAN A FURNACE EQUIPPED WITH A NATURAL DRAFT DIVERTER BE
HORIZONTALLY VENTED.
Failure to install, maintain and/or operate the Power Venter in accordance with manufacturer's instructions may result in conditions
which can produce bodily injury and property damage.
The Power Venter must be installed by a qualified installer in accordance with these instructions and all local codes or in their
absence in accordance with the latest edition of The National Fuel Gas Code (NFPA #54), The latest edition of the National Electrical
Code (NFPA#70) and the Occupational Safety and Health Act (OSHA) when applicable. Canadian installations must be installed in
accordance with CAN/CGA-B149 and the Canadian Electrical Code Part-1CSA Standard C22.1, Local installation codes and authori-
ties having jurisdiction. Improper installation can create a hazardous condition such as an explosion, fire, electrical shock or carbon
monoxide poisoning resulting in property damage, personal injury or death.
Flue gas temperatures must not exceed 600 degrees F. at the Power Venter inlet. Ambient temperatures must not exceed 104
degrees F. Temperatures above this range can cause a fire resulting in property damage, personal injury or death.
2
COMMON INSTALLATION
NOTE: ALL VENT PIPE MUST BE TYPE “B” VENT