Harman PF100 - Installation - Fan and Limit Controls; FAN;HIGH LIMIT CONTROL Installation & Set-up

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3-90-08101R23_06/13
NOTE: KEEP THE FAN/LIMIT CONTROL INSTRUCTIONS
WITH THE OWNERS MANUAL FOR FUTURE REFERENCE.
NOTE: If fans are used in the fuel storage area, they
should be installed so as not to create negative pressure
in the room where the solid-fuel-burning appliance is
located.
FAN/HIGH LIMIT CONTROL
Installation & Set-up
1. TheFanControlmustbeplacedinthedischargeplenum
approximately11inchesabovethedischargeopeningof
thefurnace,asclosetocenteraspossible.
Note: Thebestplaceisonthesamesideastheashdoor
becauseofeaseofaccess.SeeFig.35.
Note:CaremustbetakenwheninstallingtheFanControl
whenanairconditioningACoilisused.TheFanControl
must always be installed below theA Coil in lowplenum
installations.
2. Installtheexandwiring.
3. Makesurethattheueventingwillnotinterferewiththe
extotheFanControl.
4. PryoutoneofthebottomknockoutsoftheFanControl.
Installthe90degreeexconnectorasshowninFig.36.
Oneofthelocknutsstaysontheoutsideoftheboxand
onegoesontheinsidetotightentheconnectorintoplace.
Thisallowsformaximumroomforthewiresaroundthe
switches.
5. REMOVE THE COPPER JUMPER BETWEEN THE
LIMIT AND CONTROL SWITCHES. (It is not needed.) 
Figure36shownwithcopperjumperalreadyremoved.
6. Connect the two VIOLETwires to the FAN CONTROL
switch.(Itdoesn’tmatterwhichwireisonwhichscrew).
SeeFig.36.
7. ConnecttheWHITEandSKYBLUEwirestotheLIMIT
switch.(Itdoesn’tmatterwhichwireisonwhichscrew).
SeeFig.36.
8. Makesurethatallofthewiresareoutofthewaywhen
closingthecover.(Excesstwistingandpinchingofthe
wirescouldcauseashortcircuit.)
9. HIGH LIMIT setup is simple, just rotate the high limit
pointerclockwiseuntilitisagainstthetamper-proofscrew.
(Neveradjustthisscrew)
10. FANCONTROLsetup:Movebothfancontrolpointers
together until they touch, then rotate both pointers
togetheruntilthegapbetweenthemisdirectlyoverthe
middle0of100.SeeFig36.
Note:Thisis the bestfan control position wehave found
during factory testing. These fan control settings can be
adjustedifdesired.
Installation
Fig. 35
High limit fan control
Fig. 36
High Limit
Setpoint
CONTROL
Fan Control Setpoint
LIMIT
Locknuts outside and inside