
PRODUCT DESIGN
4
WARNING
When installing or servicing this equipment, safety
clothing, including hand and eye protection, is
strongly advised. If installing this equipment in an
areathathasspecialsafetyrequirements(hard hats
etc.), observe these requirements. To protect the
unit when brazing close to the painted surfaces,
the use of a quenching cloth is strongly advised to
prevent scorching or marring of the equipment fin-
ish.
WARNING
If this appliance is installed in an enclosed area
such as a garage or utility room with any carbon
monoxide (CO) producing appliance (i.e. automo-
bile, furnace, water-heaters, etc.), ensure the area
is properly ventilated.
WARNING
The unit MUST have an uninterrupted, unbroken
electricalgroundtominimizethe possibility of per-
sonal injury if an electrical fault should occur. The
electrical ground circuit may consist of an appro-
priately sized electrical wire connecting the
ground lug in the unit control box to the building
electricalservicepanel. Othermethodsofground-
ing are permitted if performed in accordance with
the “National Electric Code” (NEC)/“American Na-
tional Standards Institute” (ANSI)/“National Fire
Protection Association” (NFPA) 70 and local/state
codes. In Canada, electrical grounding is to be in
accordance with the Canadian Electric Code CSA
C22.1. Failure to observe this warning can result
in electrical shock that can cause personal injury
or death.
AIRHANDLERS
*See Air Handler Specification Sheet for Proper Combinations.
ALL AIR HANDLERS USE DIRECT DRIVE MO-
TORS. POWER SUPPLY IS 220-240 V, 60 HZ, 1
PHASE
Installation
Beforeinstallingthisapplianceinsurethatitisproperlysized
andadequatepowerisavailable.
Thisappliancecanbe installed intheverticalorrighthorizon-
tal position without modification. The horizontal left and
downflowpositionsrequireproductmodification.
This product is designed for zero inches (0 inches) clear-
ance;however,adequateaccessforserviceor replacement
mustbe considered without removing permanent structure.
Thisunitcanbeinstalled on a platform whendeemedneces-
sary.
In an attic installation a secondary drain pan must be pro-
vided by the installer and placed under the entire unit with a
separatedrainlineproperly sloped andterminatedinanarea
visibleto the owner.This secondary drainpan is requiredin
theeventthat there is a leak ormaindrainblockage. Closed
cellinsulationshouldbeappliedtothedrainlinesin uncondi-
tionedspaces where sweating may occur.
Appliancesinstalled in garages, warehouses orotherareas
where they may be subjected to mechanical damage must
be suitably guarded against such damage by installing be-
hindprotective barriers, being elevated orlocated out of the
normalpathof vehicles. When installedona base, the base
must also be protected by similar means.
Heating and cooling equipment located in garages, which
maygenerateaglow,spark or flamecapableofignitingflam-
mable vapors, must be installed with the ignition source at
least18"[46cm]abovethefloorlevel.
When more than one appliance is installed in a building it
shall be permanently identified as to the area or space ser-
vicedbytheequipment.
When this product is installed in the downflow installation in
anunconditionedspace, removethehorizontaldrain panand
install the following insulation kit
ARUF, ATUF
or ARPFModel AEPF / ASPF Insulation Kit
1729
1824
3030
1931
3636
3642 3036
3743 3137
4860
4961 4260
N/A
1830
DPI18-30/20
DPI36-42/20
DPI48-61/-20
Thiskitisusedtopreventsweatingonthe vertical drain pan.