Friedrich Metal Products PDE User Manual
HVAC Engineering Speci cations
Digital Packaged Terminal Air Conditioners & Heat Pumps
Cooling: 7200 – 15000 Btuh
Heating: 6400 – 13500 Btuh (Reverse Cycle)
8500 – 17000 Btuh (Electric Heat)
Friedrich Models: PDE – Cooling with or without electric heat
PDH – Heat Pump with electric heat
All units shall be factory assembled, piped, wired and fully charged with
R-22. All units shall be certi ed in accordance with ARI Standard 310 for
air conditioners and ARI standard 380 for heat pumps. Units shall be UL
listed and carry a UL label. All units shall be factory run-tested to check
operation and be manufactured by Friedrich or equivalent.
The basic unit shall not exceed 16" high x 42" wide. Overall depth of the
unit from the rear of the Friedrich wall sleeve to the front of the decorative front cover shall not exceed 21 ¼". The unit shall be designed so
that room intrusion may be as little as 7 ½". Installations in walls deeper
than 13 ¼" may be accomplished with the use of a wall sleeve extension
(PXWE). Unit shall draw in ambient air through both sides of an outdoor
architectural louver or grille measuring 42" wide x 16" high and shall exhaust air out middle portion of the louver. The architectural louver and
wall sleeve shall be designed so that the louver may be installed from
the inside of the building.
REFRIGERATION SYSTEM – The refrigeration system shall be hermetically
sealed and consist of a rotar y 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 ns;
and capillaries as expansion devices. Unit shall have a fan slinger ring to
increase e cienc y and condensate disposal and have a drain pan capable
of retaining 1 ½ gallons of condensate. A tertiary condensate removal
sy st em s hal l al so b e incor por ate d f or b ack up an d sh all ove r ow thr oug h
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 directly driven by a single, totally enclosed, ball bearing,
permanently lubricated split capacitor, “clam-shell" style fan motor.
Airflow shall be directed into the room by a single, injection molded,
high-impact polystyrene discharge grille. The grille 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. A removable ne mesh screen
shall lter the incoming fresh 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 1 ¼" in the opening to
facilitate easy operation of the unit.
The unit controls shall feature an LED readout that can display either
room temperature or setpoint temperature. The unit shall receive input
from the SMART CENTER® control panel through push buttons labeled:
‘Cool’, ‘Heat’, ‘High Fan’, ‘Low Fan’,
unit may be put directly into cooling or heating mode by pressing the
’, ‘ ’ and ‘Power’. When 'O ', the
‘C ool ’ or ‘ Heat’ butt on. The unit must have the following energy saving
and convenience features built-in:
• Quiet start/stop fan delay
• Room freeze protection
• Random compressor restart
• Electronic temperature limiting
• Wireless remote control ready
• Internal diagnostics
The PTAC must also o er the ability to be controlled by a remote wallmounted thermostat without additional accessories. Low voltage inputs
will include: C (common), R (24V power), Y (cooling), GL (fan low), GH (fan
high), W (heat) and B (reversing valve on PDH heat pumps only).
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 Galvanized zinc-coated steel. It shall be p repared by a process
where it is zinc phosphate pretreated and sealed with a chromate rinse,
then powder coated with a polyester nish and oven cured for durability. The sleeve shall be shipped with a protective weatherboard and a
structural center support, and be insulated for sound absorption and
thermal e ciency. The grille or louver shall be shipped separately and
made from stamped or extruded anodized aluminum. All louvers shall
be in the horizontal plane.
The front panel shall lock to the chassis by means of two factor y-supplied
thumbscrews to prevent tampering. The front panel will feature a contoured discharge with no sharp corners. The air lters shall be reusable and
be accessible without removal of the front cover. The lters will feature
an antimicrobial coating to prevent mold and bacterial growth.
All 265V units shall possess an integral, over-current time-delay
protective device.
The unit shall have a corrosion-resistant fan, fan shroud and drain pan
for corrosion protection and to prevent rust on the side of the building
below the outdoor louver.
WARRANTY – The warranty is one year on all parts and 5 years on the
sealed system including compressor, indoor and outdoor coils and
refrigerant tubing.
SEACOAST PROTECTION (optional) – As an option, the PTAC chassis
may be ordered with an anionic acrylic coated outdoor coil. All units are
produced with galvanized steel components and aluminum endplates
on the outdoor coil as standard to provide optimal service.
• Service code storage
• Constant comfort room monitoring
• Instant heat heat pump mode
• Desk control terminals
• Indoor coil frost sensor
• Auxiliary fan control
10-07
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