Tjernlund PAI-2T Fresh Air In-Forcer (Discontinued) 8504039 Rev A 06/00 - Manual (Page 2)

TABLE OF CONTENTS
Descriptions and Specifications ......................................................................................................................................1
Installation Restrictions....................................................................................................................................................1
Cautions ..........................................................................................................................................................................1
Timer/Clock Operation.....................................................................................................................................................2
Recommended Patterns of Operation..........................................................................................................................2-3
IN-FORCER Terminology ................................................................................................................................................3
Recommended Mounting and Discharge Termination Locations....................................................................................3
Determining IN-FORCER CFM Capabilities ................................................................................................................4-5
Installation
Tools Required ...........................................................................................................................................................5
Cutting PVC Opening through Wall ............................................................................................................................5
IN-FORCER Installation..............................................................................................................................................6
Installation of Pipe ..................................................................................................................................................6-7
Installation of Intake Elbow .....................................................................................................................................7-8
Electrical Ladder Diagrams .............................................................................................................................................8
Trouble Shooting .............................................................................................................................................................9
Maintenance ..................................................................................................................................................................10
How to Obtain Service & Warranty...........................................................................................................................10-11
Replacement Parts List ................................................................................................................................................11
Installer Comments .................................................................................................................................................12-13
PVC Hole Template .......................................................................................................................................................14
IN-FORCER TM is a trademark of Tjernlund Products, Inc. for IN-FORCER air intakes.
DESCRIPTION
The IN-FORCER model PAI-1T is a Listed mechanical intake fan which provides fresh outdoor air for indoor ventilation purposes.
Outside intake air is blended with a larger quantity of indoor air so the tempered fresh air supplied does not reflect outside tempera-
ture extremes. The IN-FORCER is controlled by a Timer/Clock which cycles it on and off throughout a user determined, twenty-four
hour cycle. The IN-FORCER can be programmed to provide fresh air according to the needs and lifestyles of the occupants.
SPECIFICATIONS
Motor: 115/1/60, 1600 RPM, 80 watts, 1.0 FLA
Timer/Clock: Manual Override; Automatic adjustment, rated for 1 hp @ 125 VAC
GENERAL INFORMATION
These units have been factory tested and rated in accordance with AMCA standard 210, test code for air moving devices.
Each IN-FORCER is electrically factory line tested before shipment.
After opening carton, Inspect thoroughly for hidden damage. Fan wheel should rotate freely. If any damage is found, notify freight
carrier and your distributor immediately and file a concealed damage claim.
INSTALLATION RESTRICTIONS
Observe proper location of intake elbow as described on page 4.
WARNING: 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 equipment supplier.
CAUTIONS
1. Failure to install, maintain and/or operate the IN-FORCER in accordance with manufacturer’s instructions may result in conditions
that can produce bodily injury and property damage.
2. The IN-FORCER motor shaft must be mounted horizontally and with discharge facing down to prevent motor bearing wear and
ensure proper operation of the Fan Proving Switch.
3. The IN-FORCER must be installed level to ensure proper damper operation.
4. Disconnect power supply when making wire connections and servicing the IN-FORCER. Failure to do so may result in personal
injury and/or equipment damage.
5. Make certain the power source is adequate for the IN-FORCER requirements. Do not add the IN-FORCER to a circuit where the
total electrical load is unknown.
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