Harman HydroFlex 60 Pellet Boiler - Draft Test Procedure

24
3-90-233R24_11/13
Installation
Draft Test Procedure
Aftertheventingiscompleted,thereboxdraftwillneedto
becheckedandpossiblyadjusted.Afterremovingtheplug
boltfromthedrafthole(3/16”hexkeywrench)showninFig.
9,insertthedraftmetertube.Thehopperlidmustbelatched
duringthistest.(Itisrecommendedthatthedraftmeterhave
ascaleof0to1”WC.)
Turnthefeedadjusterto“Test”.Thiswillstartthecombustion
blowerand allow youto check andrecord the HighDraft
______-IWCdate_______Themaximumdraftallowedis
-.9”WaterColumn(-224Pa).Thereisnoadjustmentforthe
HighDraft,otherthanre-positioningthecombustionblower
fanbladeonitsshaft,orachangeintheventingconguration.
After the first 60seconds the “Test” mode lowers the
combustionblowervoltagetotheLowBurnvoltage.During
thisloweredvoltagecycle,theLow Draft must be checked
andadjustedifnecessary.Therecommendedlowdraftsetting
shouldbebetween -.45 and-.55IWC.Depending on the
amountofverticalrise,itmaynotbepossibletogetalow
draftreadinginthisrange.Inthiscase,re-positioningthefan
bladefurtheronthemotorshaftmaybehelpful.
Thereisalowdraftvoltageadjustmentscrewlocatedthrough
thesmallholetotherightoftheIgniterLight.SeeFig.10.
AdjustedLowDraftis __________ -IWC.Toincreasethe
draftinhigheraltitudes,HighAltitudekit#1-00-232059may
beneeded.
Don’t forget to turn the feed adjuster off of “Test”, and
reinstall the draft test plug bolt into the boiler.
Fig. 9
“Test”
Low Draft
Adjustment Pot
Fig. 10
Draft
Testing Port
High altitude kit #1-00-232059.
Installthisringtoincreasedraftinhigheraltitude
installation locations.
CAUTION
!
Hot While In Operation. Do Not Touch. Keep Children,
Clothing And Furniture Away. Contact May Cause Skin
Burns. See Nameplate And Instructions.
Keep Doors Closed During Operation.
WARNING
!
Do Not Store Fuel or Other Combustible Material
Within Installation Clearance Area.
WARNING
!
Risk of Fire - Do Not Operate With the Flue Draft
Exceeding -.9” Water Column (-224 Pa).
WARNING
!