Tjernlund GPAK-1TR 8504047 Rev B 06/14 - Manual (Page 4)

Disconnect the power supply when making wiring connections or when working around the fan wheel and motor. Failure to do so can
result in electrical shock, personal injury, death or property damage.
1. “Qualified Installer” shall mean an individual properly trained and licensed
2. The installer must write or imprint name, phone number, date of installation and sign in the appropriate space on the Power Venter
nameplate.
3. All vent pipe must be Type “B”. Plan the vent system so that Code required distances are maintained from plumbing and wiring.
4. The Power Venter motor shaft must be mounted horizontally to ensure proper operation of the Fan Proving Switch and prevent
motor bearing wear.
5. Make certain the power supply is adequate for the fan motor requirements. Do not add the Power Venter to a circuit where the
total load is unknown.
6. The installer must verify that the BTU/hr. input of the appliance does not exceed the recommended input of the *GPAK-1TR*.
See “*GPAK-1TR* SIZING” on page 2 of these instructions for sizing information.
7. A safety inspection of an existing appliance must be performed before installation of the *GPAK-1TR* as outlined below from
ANSI Z223.1/NFPA #54, Appendix H.
*SAFETY INSPECTION OF A PREVIOUSLY USED GAS APPLIANCE
(Perform prior to *GPAK-1TR* installation)
The following procedure is intended as a guide to aid in determining that an appliance is properly installed and is in safe condition for
continuing use.
The following procedure is based on central specified gas furnace installations and it should be recognized that generalized proce-
dures cannot anticipate all situations. Accordingly, in some cases deviation from this procedure may be necessary to determine safe
operation of the equipment.
a. Perform this procedure prior to any attempt at modifications of the furnace or installation of the *GPAK-1TR*.
b. If it is determined there is a condition which could result in unsafe operation, shut off the appliance and advise the owner of the
unsafe condition.
Follow the steps below in making the safety inspection:
1. Conduct a gas leakage test of the furnace piping and control system downstream of the gas supply valve in the supply line to the
furnace.
2. Visually inspect the venting system and determine there is no blockage or restriction, leakage, corrosion and other deficiencies
which could cause an unsafe condition. Correct all deficiencies before installation of the *GPAK-1TR*.
3. Shut off all gas to the appliance(s).
4. Inspect burners and crossover’s for blockage and corrosion.
5. Inspect heat exchanger for cracks, openings or excessive corrosion. Check both the limit control and fan control for proper operation.
* Excerpts from the National Fuel Gas Code (ANSI Z223.1/NFPA #54), Appendix H.
INSTALLER NOTES
1. Read and follow these instructions carefully to assure proper installation and operation of the *GPAK-1TR*.
2. Fill in the required information on the nameplate located on the power venter electrical box cover.
3
Improper installation, adjustment, alterations, service or maintenance can cause injury or property damage. Refer to
this manual. For assistance or additional information consult a qualified installer, service agency or the gas supplier.