Harman PF100 - Installation - Specific Requirements; Mobile Home Installation; Installing Duct System

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3-90-08101R23_06/13
EXISTING
UNIT
Supply Duct
Return Duct
PF100
Installing Duct
Thepellet furnacemay be connectedto a gasor oil-red
centralfurnaceorheatpumpductsystem.Priortoinstallation,
determinewhetherallrequirementsforinstallationincluding
allclearnacescanbemet.
Thepelletfurnacewarmairsupplyandthecoldairreturn
must be installed in a parallel arrangement. EXAMPLE:
Thewarm airsupply duct from thepellet furnace isto be
connected to the warm air supply of the existingfurnace.
Alsothecoldairreturnductfromtheexistingfurnaceisto
beconnectedtothecoldairreturnductofthepelletfurnace.
Isolationdampers (2)should be installedin the ductwork.
(1)inthewarmairsupplyductfortheexistingfurnaceand
(1)inthewarmairsupplyductofthepelletfurnaceafteror
“downstream”ofthehighlimit/fancontrol.Thesedampers
canbemanuallyoperatedorfullyautomatic.Ineithercase,
theunitthatisnotbeingusedmustbepreventedfrombeing
operated.(Thisalsocanbedonemanuallyorautomatically.)
NOTE:Anycontrolwiring,powerwiringneededshouldbe
performedbyaqualiedinstallerand/orelectrician.
Thewarm-airsupplyoutletofthepelletfurnaceshallnotbe
connectedtothecold-airreturninletoftheexistingfurnace
becauseofthepossibilityofoverheatingcomponentsofthe
existing furnace, causing the existing furnace to operate
otherthanasintended.
We recommend that the warm air supply plenum be
constructedofsheetmetal.
Fig. 33
Installation
Mobile Home Installation
Thisfurnace may be installed in a manufactured / mobile
home.Thefollowingspecicrequirementsmustbemet;
1. Thefurnacemustbehookeduptoanoutsideairsource.
(seepage15)
2. Thefurnacemustbesecuredorboltedtotheoorofthe
mobilehome.Uselagboltsthroughtheprovidedholes
(seebelow).
3. Thefurnacemustbegroundedtotheframeofthemobile
home.
4. Floor protection and clearance specications must be
followed,includingtheminimumroomsizeof8feetby8
feet.
5. As in any installation, the furnace must be vented to
the outside, using only approved 4 inch pellet venting
materials.
6. Thefurnacecannotbeinstalledinaroomspeciedasa
sleepingroom.
Mobile home installation must be done in accordance
with the Manufactured Home and Safety Standard (HUD),
CFR 3280, Part 24.
LagBolt
Holes
CAUTION
!
THE STRUCTURAL INTEGRITY OF THE
MANUFACTURED HOME’S FLOOR, WALLS, AND
CEILING / ROOF MUST BE MAINTAINED.
WARNING
!
IN A MOBILE / MANUFACTURED HOME; DO NOT
INSTALL IN SLEEPING ROOM