Manual

Allunitsshallbefactoryassembled,piped,wiredandfully
chargedwithR-22.Allunitsshallbecertifiedinaccordance
withARIStandard310forairconditionersandARIStandard
380forheatpumps.UnitsshallbeULlistedandcarryaUL
label.Allunitsshallbefactoryrun-testedtocheckoperation
andbeFrieddchWallMaster®orequivalent.
Thebasicunitshallnotexceed16"highx42"wide Overall
depthoftheunitfromtherearoftheFriedrichwallsleeve
to thefrontof thedecorativefrontcovershallnotexceed
21¼".Theunitshallbedesignedsothatroomintrusion
maybeaslittleas7¾".Installationsinwallsdeeperthan
131/4"maybeaccomplishedwiththeuseofawallsleeve
extension(PXWE).Unitshalldrawinambientairthrough
bothsidesof anoutdoorarchitecturallouveror grille
measuring42"widex 16"highandshallexhaustheated
airoutthemiddleportionofthelouver.Thearchitectural
louverandwallsleeveshallbedesignedsothatthelouver
maybeinstalledfromtheinsideofthebuilding.
REFRIGERATION SYSTEM - The refrigeration system
shall consist of a hermetically sealed rotary compressor
that is externally mounted on vibration isolators no smaller
than 1 ¾" dia. X 1 ½" high; condenser and evaporator coils
constructed of copper tubes and aluminum plate fins; and
capillaries as expansion devices. Unit shall have a fan
slinger ring to increase efficiency and condensate disposal
and have a drain pan capable of retaining 1½ gallons of
condensate. Atertiary condensate removal system shall
also be incorporated for back up and shall overflow through
the wall sleeve and to the outside of the building as a
safeguard against damage to the interior room.
AIR HANDLING SECTION - The evaporator and condenser
fans shall be driven by a single, totally enclosed, ball
bearing, permanently lubricated split capacitor, "clam-shell"
style fan motor, Airflow shall be directed intothe room by a
single, injectionmolded, high-impact polystyrene discharge
grille. The grill shall have openings no larger than 3/8"
high x 3" wide to prevent personal injury or damage to the
PTAC unit, and will be reversible to allow air to be directed
upward or outward as determined by the installer,
The chassis shall have a built-in damper capable of
providing at least 60 CFM of fresh air into the conditioned
area. Afine mesh screen shall filter the incomingfresh air,
There must be a provision for locking the damper closed
to ensure a proper seal.
CONTROLS - Covered controls shall be accessible in a
compartment at least 9" wide with the controls no deeper
than 1¼" in the opening to facilitate easy operation of the
unit. Controls shall include dual rotary knobs for setting
of the thermostat and for mode control. The knobs will be
tamper proof to prohibit the removal of knobs by the user
and shall feature a temperature-limiting device adjustable
by the owner, The control panel shall be clearly marked
and easy to read. Universal symbols shall be used with
markings no smaller than 12-point type. The chassis may
be ordered with the option of remote thermostat control.
Other controls accessible without removal of the chassis
shall include fan cycle switch, fresh air vent control and
emergency heat override switch (heat pump only).
GENERAL CONSTRUCTION - The wall sleeve shall be
constructed of 18 gauge G90 zinc-ceated steel It shallbe
prepared by a processwhere itis zinc phosphatepretreated
and sealed with a chromate rinse, then powder coated for
maximum coverage and protection The sleeve shall be
shipped with a protective weatherboard and a structural
center support, and be insulated for thermal efficiency. The
grille or louver shall be shipped separately and made from
stamped orextruded anodized aluminum All louvers shall
be in the horizontal plane
The front panel shall lock to the chassis by means of two
factory-supplied thumbscrews to prevent tampering. The
front panel will feature a contoured discharge with no sharp
corners. The air filters shall be reusable and be accessible
without removal of the front cover. The filters will have
an antimicrobial treatment to protect against fungal and
bacterial growth.
All 265V units shall possess an integral, over-current time-
delay protective device.
The unit shall have a plasticfan, fan shroud and drain pan
for corrosion protection and to help prevent rust on the side
of the building below the outdoor louver.
A complete line of accessories shall be available
from Friedrich to equip the PTAC for a multitude of
applications.
Friedrich Installation/Start-Up Specialists shall be available
to answer questions regarding proper installationpractices
and in some cases for on-site start-up inspections.