Manual

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LIMITATIONS
The unit shouldbe installedin accordancewith all nationaland local safetycodes.
Limitationsof the unitand appropriateaccessoriesmustalso beobserved.
The unitmustNOTbe installedwithany ductwork in theoutdoorairstream,Theoutdoor fan isnotdesignedto operate
againstany additionalstatic pressure.
Minimum and maximum operating conditionsmust be observedto assure maximumsystem performancewith
minimum servicerequired,
TABLE1 - APPLICATIONLIMITATIONS
OUTDOORAMBIENTAIR TEMP. OF INDOORAMBIENTTEMP. °F
MIN, DB - COOL MAX, DB MIN. MAX.
65 COOL HEAT OB/WB DB DB/WB DO
125 75
COOL HEAT COOL HEAT
62/57 50 90/72 80
DUCTWORK
Ductwork shouldbe designedand sizedaccordingto applicablemethods fromthe Air ConditioningContractorsof
America(ACCA).
It is recommendedthat supplyand return duct connectionsat the unit be madewith flexible joints.
' The supplyand return air ductsystemsshouldbedesignedforthe CFMstaiicrequirementsof thejob. Theyshould
NOT be sized Io matchthe dimensionsol theduct connectionson the unit.
NOTE:SUPPLYDUCTFLANGESARESHIPPEDFLATAND MUSTBEBENTUP BEFOREAFI'ACHINGTHESUPPLYDUCT,
ToconnectthereturnducttotheunJt,usea straightpieceofduct22" wideby 7" deep. Inserttheductintothereturn
openingin thebottomoftheunit. Flangetheductovertheexistingflangesaroundthe openinginsideunit. Makesure
thatall sidesof theductareflangedoverto permitremovalof coolingchassisifrequired.Usea flexibleconnectionto
attachremainderofreturnduct.The returnductshouldbesealedto theunitcasingand terminateoutsidethe space
containingthe furnace,
NOTE: THE RETURNDUCTMUST ALLOWFORTHE UNIT DRAINPANCONNECTIONSAND DRAINTUBE.
CAUTION:00 NOT SCREWINTOTHE SIDEOF THE DRAIN PAN.
AIR FILTER
Allindoorreturn airmust befiltered. A permanent-type filter is furnished withtheunit. locateddirectly behindthe ac-
cess panel. Removingthe panel permitsaccessto the filter.
The tiltershouldbecleanedat leastthreetimesduringeach of theheatingandcoolingseasons,ormorefrequently if
unusualconditionsare encountered.To cleanthe permanentfiller, shake filterto removeexcessdirt and/or use
vacuumcleaner. Washtilter in soapor detergentwaterand replacealter filteris dry.
The filter suppliedneed not be oiledalter washing.