Friedrich is a conscientious manufacturer, concerned about customer satisfaction, product quality, and
controlling warranty costs. As an Authorized Service Provider you play a vital role in these areas. By adhering
to the policies and procedures you provide us with vital information on each warranty repair you complete.
This information is used to identify product failure trends, initiate corrective action, and improve product
quality, thereby further reducing warranty expenses while increasing customer satisfaction levels.
CHARGES TO CUSTOMER
The customer/end user is not to be charged for any warranty repairs to correct defects in materials or
workmanship in accordance with the specifi c warranty provisions outlined in the product’s warranty
certifi cate.
FRIEDRICH AUTHORIZED PARTS DEPOTS
AAA Refrigeration Service
1322 24th Street, Suite B
Kenner, Louisiana 70062
504-464-7444
877-813-7444
Alamo Service Company
1450 North Flores Street
San Antonio, Texas 78212
210-227-2450
800-328-2450
The information contained in this manual is intended for use by a qualifi ed service technician who is familiar
with the safety procedures required for installation and repair, and who is equipped with the proper tools and
test instruments required to service this product.
Installation or repairs made by unqualifi ed persons can result in subjecting the unqualifi ed person making
such repairs as well as the persons being served by the equipment to hazards resulting in injury or electrical
shock which can be serious or even fatal.
Safety warnings have been placed throughout this manual to alert you to potential hazards that may be
encountered. If you install or perform service on equipment, it is your responsibility to read and obey these
warnings to guard against any bodily injury or property damage which may result to you or others.
Your safety and the safety of others are very important.
We have provided many important safety messages in this manual and on your appliance. Always read
and obey all safety messages.
This is a safety Alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol with the word “WARNING”
or “CAUTION”. These words mean:
WARNING
CAUTION
All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury,
and tell you what will happen if the instructions are not followed.
NOTICE
You can be killed or seriously injured if you do not follow instructions.
You can receive minor or moderate injury if you do not follow instructions.
A message to alert you of potential property damage will have the
word “NOTICE”. Potential property damage can occur if instructions
are not followed.
2
PERSONAL INJURY OR DEATH HAZARDS
ELECTRICAL HAZARDS:
Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenance, •
or service.
Make sure to follow proper lockout/tag out procedures.•
Always work in the company of a qualifi ed assistant if possible. •
Capacitors, even when disconnected from the electrical power source, retain an electrical charge •
potential capable of causing electric shock or electrocution.
Handle, discharge, and test capacitors according to safe, established, standards, and approved •
procedures.
Extreme care, proper judgment, and safety procedures must be exercised if it becomes necessary to •
test or troubleshoot equipment with the power on to the unit.
Do not spray or pour water on the return air grille, discharge air grille, evaporator coil, control panel, •
and sleeve on the room side of the air conditioning unit while cleaning.
Electrical component malfunction caused by water could result in electric shock or other electrically •
unsafe conditions when the power is restored and the unit is turned on, even after the exterior is dry.
Never operate the A/C unit with wet hands.•
Use air conditioner on a single dedicated circuit within the specifi ed amperage rating. •
Use on a properly grounded outlet only.•
Do not remove ground prong of plug.•
Do not cut or modify the power supply cord.•
Do not use extension cords with the unit.•
Follow all safety precautions and use proper and adequate protective safety aids such as: gloves, •
goggles, clothing, adequately insulated tools, and testing equipment etc.
Failure to follow proper safety procedures and/or these warnings can result in serious injury or death.•
REFRIGERATION SYSTEM HAZARDS:
Use approved standard refrigerant recovering procedures and equipment to relieve pressure before •
opening system for repair.
Do not allow liquid refrigerant to contact skin. Direct contact with liquid refrigerant can result in minor •
to moderate injury.
Be extremely careful when using an oxy-acetylene torch. Direct contact with the torch’s fl ame or hot •
surfaces can cause serious burns.
Make sure to protect personal and surrounding property with fi re proof materials.•
Have a fi re extinguisher at hand while using a torch.•
Provide adequate ventilation to vent off toxic fumes, and work with a qualifi ed assistant whenever •
possible.
Always use a pressure regulator when using dry nitrogen to test the sealed refrigeration system for •
leaks, fl ushing etc.
3
Make sure to follow all safety precautions and to use proper protective safety aids such as: gloves, •
safety glasses, clothing etc.
Failure to follow proper safety procedures and/or these warnings can result in serious injury or death.•
MECHANICAL HAZARDS:
Extreme care, proper judgment and all safety procedures must be followed when testing, •
troubleshooting, handling, or working around unit with moving and/or rotating parts.
Be careful when, handling and working around exposed edges and corners of sleeve, chassis, and •
other unit components especially the sharp fi ns of the indoor and outdoor coils.
Use proper and adequate protective aids such as: gloves, clothing, safety glasses etc.•
Failure to follow proper safety procedures and/or these warnings can result in serious injury or death.•
PROPERTY DAMAGE HAZARDS
FIRE DAMAGE HAZARDS:
Read the Installation/Operation Manual for this air conditioning unit prior to operating.•
Use air conditioner on a single dedicated circuit within the specifi ed amperage rating. •
Connect to a properly grounded outlet only.•
Do not remove ground prong of plug.•
Do not cut or modify the power supply cord.•
Do not use extension cords with the unit.•
Failure to follow these instructions can result in fi re and minor to serious property damage.•
WATER DAMAGE HAZARDS:
Improper installation maintenance, or servicing of the air conditioner unit, or not following the above •
Safety Warnings can result in water damage to personal items or property.
Insure that the unit has a suffi cient pitch to the outside to allow water to drain from the unit. •
Do not drill holes in the bottom of the drain pan or the underside of the unit. •
Failure to follow these instructions can result in result in damage to the unit and/or minor to serious •
property damage.
INTRODUCTION
This service manual is designed to be used in conjunction with the installation manuals provided with each unit.
This service manual was written to assist the professional HVAC service technician to quickly and accurately
diagnose and repair any malfunctions of this product.
This manual, therefore, will deal with all subjects in a general nature. (i.e. All text will pertain to all models).
IMPORTANT:
4
It will be necessary for you to accurately identify the unit you are
servicing, so you can be certain of a proper diagnosis and repair.
(See Unit Identifi cation.)
DIAMONBLUE
TECHNOLOGY
Diamonblue seacoast protection protects the outdoor coil from harsh environments. Comes standard
on all models.
DIGITAL DEFROST
THERMOSTAT
The new Friedrich PTAC uses a digital thermostat to accurately monitor the outdoor coil conditions to al-
low the heat pump to run whenever conditions are correct. Running the PTAC in heat pump mode saves
energy and reduces operating costs. The digital thermostat allows maximization
of heat pump run time.
INSTANT HEAT
HEAT PUMP MODE
Heat pump models will automatically run the electric heater to quickly bring the room up to temperature
when initially energized, then return to heat pump mode. This ensures that the room is brought up to
temperature quickly without the usual delay associated with heat pump units.
EVEN HEAT MONITORING
of the setpoint. If necessary, the unit will cycle the electric heat to maintain the temperature. This feature
-
SEPARATE HEAT/COOL
FAN CYCLE
CONTROL
The owner may choose between fan cycling or fan continuous mode based on property preference. (Note:
Even heat monitoring and quiet start/stop fan delay only operate in fan cycle mode) Fan continuous mode is
energy by only operating the fan while the compressor or electric heater is operating.
The ability to set the
fan cycling condition independently between heating and cooling mode will increase user comfort by
allowing the choice of only constantly circulating air in the summer or winter time. Unlike other PTAC
brands that only allow one selection.
EMERGENCY
HEAT OVERRIDE
In the event of a compressor failure in heat pump mode, the compressor may be locked out to provide
heat through the resistance heater. This feature ensures that even in the unlikely event of a compressor
failure, the room temperature can be maintained until the compressor can be serviced.
DESK CONTROL
READY
All Friedrich digital PTACs have low voltage terminals ready to connect a desk control energy manage-
ment system. Controlling the unit from a remote location like the front desk ca
n reduce energy usage and
requires no additional accessories on the PTAC unit.
INDOOR COIL
FROST SENSOR
temperatures cause the indoor coil to freeze. When the indoor coil reaches 30°F, the compressor is
disabled and the fan continues to operate based on demand. Once the coil temperature returns to 45°F,
the compressor returns to operation.
ULTRA QUIET
AIR SYSTEM
The new Friedrich PD series units feature an indoor fan system design that reduces sound levels without
HIGH EFFICIENCY
The Friedrich PTAC has been engineered so that all functional systems are optimized so that they work
together to deliver the highest possible performance.
DUAL MOTOR
With Friedrich’s new dual-motor design the indoor motor can run at slower speeds which reduces sound
levels indoors.
ROTARY COMPRESSOR
-
ciency.
STAINLESS STEEL
ENDPLATES
Outdoor coil endplates made from stainless steel reduce corrosion on the outdoor coil common with other
coil designs.
TOP -MOUNTED
ANTIMICROBIAL
AIR FILTERS
front cover.
FILTERED FRESH
AIR INTAKE
Friedrich PTAC units are capable of introducing up to 75 CFM of outside air into the conditioned space.
The outdoor air passes through a washable mesh screen to prevent debris from entering the airstream.
R-410A REFRIGER ANT
Friedrich PTAC units use environmentally-friendly refrigerant.
General Product Features
5
Digital Packaged Terminal Air Conditioners & Heat Pumps
All units shall be factory assembled, piped, wired and fully charged with
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 runtested to check operation and be 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 int
rusion may be as little as 7 ½”. Installations
in walls deeper than 13 ¼” may be accomplished with the use of a
deep wall sleeve (PDXWSEXT). Unit shall draw in ambient air through
both sides of an outdoor architectural louver or grille measuring 42”
.revuol eht fo noitrop elddim tuo ria tsuahxe llahs dna hgih ”61 x ediw
The architectural louver and wall sleeve shall be designed so that the
louver may be installed f
rom the inside of the building.
REFRIGERATION SYSTEM – The refrigeration system shall be hermetically sealed and consist of a rotary compressor that is externally
mounted on vibration isolators no smaller than 1 3/8” dia. x 1 ½” high;
condenser and evaporator coils constructed of copper tubes and
.etasnednoc fo snollag ½ 1 gniniater fo elbapac nap niard a evah dna
A tertiary condensate removal system shall also be incorporated for
of the building as a safeguard against damage to the interior room.
INDOOR AIR HANDLING SECTION – The indoor air handling section shall consist of a tangential blower wheel direct driven by a totally
enclosed motor. The air handling system shall be designed to minimize
fan must have three fan speeds that may be selected by the user.
throughout the room. The grille shall be reversible to allow a change
personal injury or damage to the unit.
and reusable by cleaning with water or by vacuuming.
The chassis shall have a built-in damper capable of providing at least
damper closed to ensure a proper seal.
OUTDOOR AIR HANDLING SECTION – The outdoor air section
shall consist of a single injection molded fan shroud that incorporates
the outdoor motor mount into a single piece for ease of service and
assembly. The outdoor motor shall be totally enclosed, ball-bearing,
permanently lubricated and directly drive the outdoor fan/slinger ring.
CONTROLS – Covered controls shall be accessible in a compartment
at least 7½” wide with the controls no deeper than 1 ¼” in the opening
to facilitate easy operation of the unit.
The unit controls shall feature a soft blue LED readout that can display
either room temperature or setpoint temperature. The unit shall receive input from the digital control panel through push buttons labeled:
‘Cool’, ‘Heat’, ‘High Fan’, ‘Med Fan’, ‘Low Fan’,
’, ‘’ and ‘Power’.
When ‘Off’, the unit may be put directly into cooling or heating mode
by pressing the ‘Cool’ or ‘Heat’ button.
The unit must have the following energy saving and convenience
features built-in:
• Quiet start/stop fan delay
• Fan cycle control for cooling and heating independently
• Room freeze protection
• Random compressor restart
• Electronic temperature limiting
The PTAC must also offer the ability to be controlled by a remote wallmounted thermostat wit
hout additional accessories. Low voltage inputs
will include: C (common), R (24V power), Y (cooling), GL (fan low), GH
(fan high), W (heat) and O (reversing valve on PDH heat pumps only).
PTAC models shall use a single stage cool / single stage heat thermostat. PTHP models shall use a single stage cool / two-stage heat
thermostat. An accessory thermostat must be available from the
manufacturer, RT6 or equivalent. The RT6
thermostat will provide
.sedom naf dna taeh ,looc morf noitceles edom ,tnioptes erutarepmet
The thermostat must also allow the selection of fan speed between
high and low speed.
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).
ELECTRICAL CONNECTION – All PTAC/PTHP units shall come from
the factory with a power cord installed. All 230/208V power cords shall
feature a leakage current detection device on the plug head. All units
shall feature a 6-pin connector for removal of the power cord. The
power cord shall be interchangeable to allow changes to the heater
output based on the property/electrical requirements.
GENERAL CONSTRUCTION – The wall sleeve shall be constructed
of 18-gauge Galvanized zinc-coated steel. It shall be prepared by
a process where it is zinc phosphate pretreated and sealed with a
cured for durability. The sleeve shall be shipped with a protective
weatherboard and a structural center support, and be insulated for
shipped separately and made from stamped or extruded anodized
aluminum. All louvers shall be in the horizontal plane.
clips. As an option the cover may be attached by two screws to prevent tampering. The front panel will feature a contoured discharge
with no sharp corners.
CORROSION PROTECTION – The unit shall have corrosion-resistant
fans, fan shroud and drain pan for corrosion protection and to prevent
rust on the side of the building below the outdoor louver. The unit shall
-
rioration. The outdoor coil shall have Diamonblue corrosion protection
applications including seacoast environments. All outdoor coils shall
also have stainless steel endplates to eliminate rusting of the endplates.
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.
PDXWS Wall Sleeve Dimensions:
16" H x 42" W x 13-¾" D
Front Cover Dimensions:
16" H x 42" W x 7-¾" D
Cut-Out Dimensions:
16-¼" x 42-¼"
7
Accessories
PXAA
New Construction Accessories
PDXWS
PDXWSEXT
WALL SLEEVE Galvanized zinc coated steel is prepared in an 11-step
oven for exceptional durability. The wall sleeve is insulated for sound
DEEP WALL SLEEVE EXTENSION For use when the wall is thicker
than 13 1/4”deep. The wall sleeve may be special ordered through your
-
ments..
PXGA
GRILLE Standard, stamped aluminium, anodized to resist chalking and
oxidation.
PXAA
PXBG
PXSC
ARCHITECTURAL GRILLES Consist of heavy-gauge 6063-T5 alumi-
num alloy:
PXAA – Clear, extruded aluminum
PXBG – Beige acrylic enamel
PXSC – Also available in custom colors.
PXDR10
CONDENSATE DRAIN KIT Attaches to the bottom of the wall sleeve for
nal draining. Recommended on all units to remove excess condensate.
Packaged in quantities of ten.
PXSB
DECORATIVE SUBBASE Provides unit support for walls less than
ing brackets for electrical accessories. Accepts circuit breaker, power
disconnect switch, or conduit kit.
RT6
DIGITAL REMOTE WALL THERMOSTAT Single stage cool, single
stage heat for PDE models or single stage cool, dual stage heat for
PDH model thermostat features high/low fan speed switch. Thermostat
is hard wired and can be battery powered or unit powered. Features
Friedrich PTACs and Vert-I-Paks.
PDXRTA
REMOTE THERMOSTAT ESCUTCHEON KIT This kit contains ten
escutcheons that can be placed over the factory control buttons when
a remote wall mounted thermostat is used. The escutcheon directs the
guest to the wall thermostat for operation and retains the LED window to
display error codes and diagnostic information.
2.4" sleeve extension attached to the room side of the sleeve to allow for
the installation of a PD-Series Friedrich PTAC in a T-Series sleeve.
PDXDAA
LATERAL DUCT ADAPTER Attaches to the PTAC/PTHP unit and
provides a transition to direct up to 35% of the total CFM to a secondary room, either left or right of the unit. Kit includes duct plenum with
PDXDEA
LATERAL DUCT EXTENSION A three-foot insulated plenum that attaches to the left or right side of the duct adapter. The extension can be
cut to length by the installer. Maximum allowable straight extension is 15
feet.
PXGA
PDXWSE XT
PDXWS
8
Accessories
New Construction Accessories
PXCJA
CONDUIT KIT WITH JUNCTION BOX Hard wire conduit kit with
junction box for 208/230V and 265V units (subbase not required). Kit
includes a means of quick disconnect for easy removal of the chassis.
*Required for 265V installations.
PXFTA
REPLACEMENT FILTER PACK These are original equipment return air
chassis).
9
AAAM00001
LJ = 2009AE = 2015
AK = 2010AF = 2016
AA = 2011AG = 2017
AB = 2012AH = 2018
AC = 2013AJ = 2019
AD = 2014
A = JanD = AprG = JulK = Oct
B = FebE = MayH = AugL = Nov
3. PRESS TEST BUTT ON,
RESET BUTT ON SHOULD
POP UP
4. PRESS TEST BUTT ON,
FOR USE
DO NOT USE IF ABOVE TEST
F AILS
WHEN GREEN LIGHT IS ON
IT IS WORKING PROPERL Y
RESET
TEST
W ARNING
TEST BEFORE EACH USE
1. PRESS RESET BUTT ON
2. PLUG LCDI INT O POWER
RECEPT ACLE
3. PRESS TEST BUTT ON,
RESET BUTT ON SHOULD
POP UP
4. PRESS TEST BUTT ON,
FOR USE
DO NOT USE IF ABOVE TEST
F AILS
WHEN GREEN LIGHT IS ON
IT IS WORKING PROPERL Y
RESET
TEST
FRP014
Typical LCDI Devices
WARNING
ELECTRIC SHOCK HAZARD
Turn off electric power before service or
installation. All electrical connections and
wiring MUST be installed by a qualifi ed
electrician and conform to the National
Electrical Code and all local codes which
have jurisdiction. Failure to do so could result
in serious personal injury or death.
NOTE: Use Copper Conductors ONLY. Wire sizes
are per NEC, check local codes for overseas applications.
Table 1 250 V Receptacles and Fuse Types
AMPS 15 20* 30
RECEPTACLE
TIME-DELAY TYPE FUSE
(or HACR circuit breaker)
HACR – Heating, Air Conditioning, Refrigeration
* May be used for 15 Amp applications if fused for 15 Amp
NOTE: 265 volt units are hard wired.
Table 2 Recommended branch circuit wire sizes*
NAMEPLATE / MAXIMUM
CIRCUIT BREAKER SIZE
15
20
30
15 20 30
AWG WIRE SIZE**
14
12
10
WIRE SIZE
FUSE/CIRCUIT
BREAKER
GROUNDING
RECEPTACLE
WIRE SIZING
Use ONLY wiring size recommended for
single outlet branch circuit.
Use ONLY type and size fuse or HACR
circuit breaker indicated on unit’s rating
plate. Proper current protection to the unit
is the responsibility of the owner. NOTE:
A time delay fuse is provided with 265V
units.
Unit MUST be grounded from branch
circuit through service cord to unit, or
through separate ground wire provided
on permanently connected units. Be sure
that branch circuit or general purpose
outlet is grounded. The fi eld supplied
outlet must match plug on service cord
and be within reach of service cord. Refer
to Table 1 for proper receptacle and fuse
type. Do NOT alter the service cord or
plug. Do NOT use an extension cord.
The fi eld supplied outlet must match plug
on service cord and be within reach of
service cord. Refer to Table 1 for proper
receptacle and fuse type. Do NOT alter
the service cord or plug. Do NOT use an
extension cord.
Use recommended wire size given
in Table 2 and install a single branch
circuit. All wiring must comply with local
and national codes. NOTE: Use copper
conductors only.
AWG – American Wire Gauge
* Single circuit from main box
** Based on copper wire, single insulated conductor at 60°C
POWER CORD INFORMATION (230/208V MODELS ONLY)
All Friedrich 230/208V PTAC units are shipped from the
factory with a Leakage Current Detection Interrupter (LCDI)
equipped power cord. The LCDI device meets the UL and
NEC requirements for cord connected air conditioners
effective August 2004.
To test your power supply cord:
1. Plug power supply cord into a grounded 3 prong outlet.
2. Press RESET.
3. Press TEST (listen for click; Reset button trips and pops
out).
4. Press and release RESET (listen for click; Reset button
latches and remains in). The power supply cord is ready for
operation.
NOTE: The LCDI device is not intended to be used as a
switch.
Once plugged in the unit will operate normally without the
need to reset the LCDI device. If the LCDI device trips and
15
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