Friedrich HEAT PUMPS Operating instructions

920-087-04 (10-06)
PTAC
PACKAGED TERMINAL
AIR CONDITIONERS
& HEAT PUMPS
Standard Control
Remote Thermostat
Seacoast Protected
INSTALLATION &
OPERATION GUIDE

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920-087-04
Unit Components ...............................................................................................................................................................................................2
Model Number Code..........................................................................................................................................................................................3
Installation Recommendations..........................................................................................................................................................................4
Friedrich Digital Control Features..................................................................................................................................................................5-6
Drain Kit Installation........................................................................................................................................................................................7-8
Wall Sleeve Installation.................................................................................................................................................................................9-10
Deep Wall Installation ......................................................................................................................................................................................11
Standard Grille Installation...............................................................................................................................................................................12
Electrical Rating Tables...................................................................................................................................................................................13
Power Cord Information...................................................................................................................................................................................13
Installation Checklist ........................................................................................................................................................................................14
Chassis Installation.....................................................................................................................................................................................14-15
Digital Control User Input Configuration.........................................................................................................................................................16
Operation..........................................................................................................................................................................................................17
Remote Thermostat and Low Voltage Control Connections.........................................................................................................................18
Desk Control Terminals ...................................................................................................................................................................................19
Auxiliary Fan Control........................................................................................................................................................................................19
Fresh Air Vent Control......................................................................................................................................................................................19
Air Discharge Grille..........................................................................................................................................................................................19
Start-up Checklist.............................................................................................................................................................................................20
Appendix A: Electrical Wiring for 265 V Models............................................................................................................................................21
Routine Maintenance.......................................................................................................................................................................................22
Basic Troubleshooting Techniques .................................................................................................................................................................23
Digital Control Diagnostics and Test Mode.....................................................................................................................................................24
Accessories................................................................................................................................................................................................25-26
Warranty...........................................................................................................................................................................................................27
Table of Contents
Typical Unit Components
Front cover
Chassis
Wall sleeve
Outdoor grille

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920-087-04
Thank you for your decision to purchase the newly designed Friedrich Packaged Terminal Air Conditioner (PTAC). We are
confident that you will find this unit a quiet and efficient example of Friedrich reliability.
This Installation and Operation Manual has been designed to insure maximum satisfaction in the performance of your unit.
For years of trouble-free service, please follow the installation instructions closely. We cannot overemphasize the importance
of proper installation. We have added new information to the basic instructions to help you achieve success.
Remember, proper installation is not difficult but it is essential.
Please read this manual thoroughly prior to equipment installation or operation. It is the installer’s responsibility
to properly apply and install the equipment. Installation must be in conformance with the NFPA 70-2002 National
Electric Code or current edition and Uniform Mechanical Code current edition and applicable local or national codes.
Model Number Code
PD H 07 K 3 S B 1
Engineering Digit
Design Series
Options
S = Standard
C = Seacoast Protection
Nominal Heater Size (@ 230V or 265V)
0 = No Heater (only on PDE09K, PDE12K AND PDE15K)
2 = 2.5 KW* 3 = 3.4 KW 5 = 5.0 KW**
* 2.5 kw only available on 7000, 9000, and 12000 BTU models
** 5.0 kw only available on 12000 and 15000 BTU models
Voltage
K= 230/208V - 1 Ph. - 60 Hz.
R= 265V - 1 Ph. - 60 Hz.
Nominal Cooling Capacity
07 = 7,000 Btuh
09 = 9,000 Btuh
12 = 12,000 Btuh
15 = 15,000 Btuh
System
X = Accessory
E = Cooling with or without electric heat
H = Heat Pump with Auxiliary Heat
Series
PD = Friedrich Digital PTAC

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PTAC Installation Recommendations
For proper PTAC unit performance and maximum operating life please refer to the minimum installation clearances below:
The above suggestions are for reference only and do not represent all possible installations. Please contact the factory for
information regarding affects of other installation arrangements. By following these simple recommendations you can be
confident that your Friedrich PTAC will provide years of worry free operation.
PTAC
SHRUB
POLE
FENCE OR WALL
PTAC PTAC
TYP. BUILDING ( PLAN VIEW )
CONDENSING UNIT
12"
36"
36"36"
36" MIMUMUM, MAJOR
OBSTRUCTIONS
12" MINIMUM, MINOR
OBSTRUCTIONS
Figure 2
PTAC units should be installed
no closer than 12" apart when
two units are side by side. If
three or more PTAC units are to
operate next to one another allow
a minimum of 36" between units.
Also, a vertical clearance of 60"
should be maintained between
units installed.
Figure 1
BETWEEN PTACs
THREE OR MORE PTACs
BUILDING ELEVATION
ADJACENT 36" MINIMUM
6" MINIMUM FROM GRADE
GROUND FLOOR PTACs
TWO ADJACENT
PTACs 12" MINIMUM
WINDOW
TYP.
VIEW: OUTSIDE
60" VERTICAL MIMUMUM
12" 6"
36"
60"
For PTACs on the ground floor or anytime obstructions are present, use the following guidelines:
• For minor obstructions
such as lamp poles
or small shrubbery a
clearance of 12" from the
outdoor louver should be
maintained.
• For major obstructions
such as a solid fence, wall
or other heat rejecting
device like a condensing
unit, a minimum distance
of 36" should be kept.

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920-087-04
Friedrich Digital Control Features
The new Friedrich digital PTAC has state of the art features to improve guest comfort, indoor air quality and conserve energy.
Through the use of specifically designed control software for the PTAC industry Friedrich has accomplished what other Manufactur-
er’s have only attempted – a quiet, dependable, affordable and easy to use PTAC.
Below is a list of standard features on every Friedrich PTAC and their benefit to the owner.
Digital Temperature
Readout
Bydigitally monitoring desiredroomtemperaturetheroomis controlledmore preciselythan conventionalsystems.Thelarge,easy
toread LED displaycan show either set-point oractual room temperature as selectedbyowner.
One-Touch Operation
When the unit is powered off the unit can be returned directly to heating or cooling mode by pressing the ‘Heat’ or ‘Cool’ buttons
withouttheconfusingpowerupsequenceofsomecontrols.One-touchcontroltakesguessworkoutofunitcontroldeliveringamore
enjoyable experience and eliminating front-deskcalls.
Individual Mode and
Fan Control Buttons
By having separate control buttons and indicators for both fan and mode settings the Friedrich digital control eliminates the confu-
sion of previousdigital PTACs.Theaccurate temperaturesetting providesgreater guest comfortthan othersystems.
Quiet Start/Stop
Fan Delay
Thefanstartandstopdelayspreventabruptchangesinroomacousticsduetothecompressorenergizingorstoppingimmediately.
Uponcallforcoolingorheatingtheunitfanwillrunforfivesecondspriortoenergizingthecompressor.Also,thefanoffdelayallows
for “free cooling” by utilizing the already coolindoor coil to its maximum capacitybyrunning for30 seconds afterthe compressor.
Remote Thermostat
Operation
Some applications require the use of a wall mounted thermostat. All new Friedrich PTACs may be switched from unit control to
remote thermostat controleasily withoutthe need to orderaspecial model or accessory kit.
Wireless Remote
Control Ready
Guestscanadjustthetemperature and mode of the unit throughtheuseofan optionalhandheldwireless remote,improvingguest
comfortand relaxation.
Internal Diagnostic
Program
The new Friedrich digital PTAC features a self diagnostic program that can alert maintenance to component failures or operating
problems. The internaldiagnostic program savespropertiesvaluable timewhen diagnosing running problems.
Service Error Code
Storage
The self diagnosis program will also store error codes in memory if certain conditions occur and correct themselves such as ex-
treme high or low operating conditions or activation of the room freeze protection feature. Storing error codes can help properties
determine if the unit faced obscure conditionsor if an erroroccurredandcorrecteditself.
Constant Comfort
Room Monitoring
The on-board processor monitors timebetween demandcycles (heator cool) andwill cycle thefan every 9minutes tosample the
room conditionand determine if the desired conditionsare met. This allows the room to havesimilar benefitsto a remote mounted
stat without the complication orcost of awall mounted thermostat.
Electronic Temperature
Limiting
By limiting the operating range the property can save energy by eliminating “maxcool” or “maxheat”situationscommonwitholder
uncontrolled systems.Thenewelectroniccontrolallowsownerstosetoperatingrangesforbothheatingandcoolingindependently
ofone another.
Room Freeze
Protection
WhenthePTACsensesthattheindoorroomtemperaturehasfallento40°Ftheunitwillcycleonhighfanand theelectricstripheat
to raise the room temperature to 46°F then cycle off again. This feature works regardless of the mode selected and can be turned
off. The control will also store the Room Freeze cycle in the service code memory for retrieval at a later date. This feature ensures
that unoccupied rooms donotreach freezing levelswhere damagecan occur toplumbing and fixtures.
Random Compressor
Restart
Multiple compressors starting at once can often cause electrical overloads and premature unit failure. The random restart delay
eliminates multiple units from starting at once following a power outage or initial power up. The compressor delay will range from
180to240seconds.
Digital Defrost
Thermostat
The new Friedrich PTAC uses a digital thermostat to accurately monitor the outdoor coil conditions to allow the heat pump to run
whenever conditions are correct. Running the PTAC in heat pump mode save energy and reduces operating costs. The digital
thermostat allows maximizationof heat pump run time.

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Friedrich Digital Control Features Continued
Instant Heat
Heat Pump Mode
Heatpumpmodelswill automatically run theelectric heater to quicklybringtheroomuptotemperaturewheninitiallyenergized,
then return to heat pump mode. This ensures thatthe room is broughtuptotemperaturequicklywithouttheusualdelayassoci-
ated with heat pump units.
Even Heat Monitoring
Thedigitalcontrolmonitorsindoorconditionstoensurethattheroomtemperatureiswithinfivedegreesofthesetpoint.Ifneces-
sarytheunitwillcycletheelectricheattomaintainthetemperature.Thisfeatureensuresguestcomfortbydeliveringtheheating
benefitsofanelectric heater whilemaintaining theefficiencybenefits of a heatpump.
Fan Cycle Control
The owner maychoosebetween fan cyclingor fan continuous modebased on property preference.(Note:Evenheat monitor-
ingandquietstart/stopfandelayonly operateinfancyclemode)Fancontinuousmodeisusedtokeepconstantairflowcircula-
tion in the room duringalltimesthe unit is‘ON’. Fancyclewill conserve energybyonly operating the fan whilethe compressor
orelectric heaterisoperating.
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 resis-
tance heater. This feature ensures that even in the unlikely event of a compressor failure the room temperature can be main-
tained until the compressor can beserviced.
Desk Control Ready
All Friedrich digital PTACs have low voltage terminals ready to connect a desk control energy management system. Control-
ling the unit from a remote location like the front desk can reduce energy usage and requires no additional accessories at the
PTAC.
Indoor Coil Frost Sensor
The frost sensorprotectsthe compressor from damage inthe eventthat airflow isreduced or lowoutdoor temperatures cause
the indoor coil to freeze.Whenthe indoor coil reaches 30°F the compressor is diabledand the fan continues tooperate based
ondemand.Once the coil temperature returns to 45°Fthe compressor returnstooperation.
Ultra-Quiet Air System
The new Friedrich PD series units feature a indoor fan system design that reduces sound levels without lowering airflow and
preventing proper air circulation.
High Efficiency
The Friedrich PTAC benefits quality components and extensive developmenttoensure a quiet,efficient and dependable unit.
Single Motor
Friedrich’s single-motor design allows for enhanced outdoor airflow and simplifies the unit design without the need for redun-
dantcomponents.
Rotary Compressor
Highefficiency rotary compressorsare used onall Friedrich PTACsto maximize durability and efficiency.
Auxiliary Fan Ready
The Friedrich PTAC features a 24V AC terminal for connection to an auxiliary fan that may be used to transfer air to adjoining
rooms. Auxiliary fanscan provide conditioningto multiplerooms without the requirement of multiple PTACunits.
Aluminum Endplates
AllFriedrichPTACsarebuiltwith.04"endplatesmadefromaluminumasopposedtosteel.Theendplatesaretypicallythemost
susceptible areafor corrosion andaluminumis far more resistant to corrosion than even coated steel.
Seacoast Protection
Optional Seacoast protection isavailable toprotect the outdoor coil from harsh environments. The Friedrich Seacoast process
includesdipping theentire outdoorcoil ina7-stepcoatingprocessthat provides superiorprotectiontoonlycoatingthe fins of
thecoil.
Top Mounted Anti-
microbial Air Filters
All Friedrich PTAC return air filters feature an anti-microbial element that has proven to prevent mold and bacterial growth in
laboratory testing. PDXFT replacement filter kits feature the same anti-microbial agent. All filters are washable and reusable
andare easily accessedfrom the top ofthe unit without the removalofthe front cover.
Filtered Fresh Air Intake
Friedrich PTAC units arecapable ofintroducing up to70 CFMof outside airinto the conditioned space. Theoutdoor airpasses
through a washable mesh filter to preventdebris from enteringthe airstream.

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Installation Instructions PXDR10 Drain Kit
Internal Drain (optional for new construction)
NOTE: If installing an internal drain, you MUST install a drain kit
on the wall sleeve before the wall sleeve is installed.
1. Refer to Figure 3 below and locate the drain within the
"Primary" area for best drainage. Maintain at least a 1/2"
clearance from the embossed area.
2. Using the mounting plate with the 1/2" hole as a template,
mark and drill two, 3/16" mounting holes and a 1/2" drain
hole.
3. Remove the backing from the gasket and mount it on the
flat side of the mounting plate. (See Figure 4.) Insert the
drain tube through the hole in the gasket and mounting
plate so the tube flange will be against the wall sleeve.
4. Position the assembly beneath the drilled holes and
secure it with #10-24 x 1/2" machine screws and lock
nuts provided. Seal the tops of the screws with silicone
caulking.
5. Use1/2"I.D.coppertube,PVCpipe,orvinylhose(obtained
locally)toconnecttheinternaldraintubetothedrainsystem
in the building.
6. Referring to Detail A on page 6, locate and assemble the
(2) two cover plates and gaskets over the drain holes at
the rear of the wall sleeve. Attach them with the #10 sheet
metalscrewsprovided.Makecertainthatthefouroverflow
slots at the rear of the wall sleeve are not blocked (See
drawing of the back of the sleeve on page 6).
7. If a deep wall extension (PXWE) is used, after installing
the field supplied flashing, caulk as required. Be sure to
caulk around the flashing and the wall sleeve where the
hole was drilled for the drain tube.
3"
7.6 cm
Secondary area
Primary area - no foam insulation
If the drain must be located in the
secondary area, the foam insulation
must be cut away and removed to
allow access to the drain.
Screw
Wall sleeve
Gasket
Mounting plate
Nut
Drain tube
Drain Kit Location and Installation
Figure 3
NOTE: Determine whether drain will be located within the wall, on the indoor side, or will drain to the exterior of the building. Follow
appropriate instructions below depending on your particular type of installation.

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920-087-04
External Drain (for new construction or unit replacement)
When using an external drain system, the condensate is removed through either of two drain holes on the back of the wall sleeve.
Select the drain hole which best meets your drainage situation and install the drain kit. Seal off the other with a cover plate.
Drain Kit Installation
Figure 4
Foam gasket
Mounting plate
Foam gasket
Mounting plate
1/2" O.D. tube
#10 sheet metal screws
NOTES:
The largeflangeonthe mountingplateispositionedatthebottom ofthe sleevefacingtoward the sleeve.Thedrain tubemustberotatedtoa horizontal
position to allow for the wall sleeve to be installed into the wall. Once the wall sleeve is installed, return the drain tube to a downward angle.
Drain Tube Installation
1. Peel the backing tape off the gaskets and apply the
sticky side to one cover plate and one mounting plate
as shown in Details A and B.
2. Placethedraintubethroughthegasketandthemounting
plate with the flange toward the wall sleeve.
3. Attach the drain tube assembly to one of the two drain
holes at the rear of the wall sleeve. The large flange
on the mounting plate is positioned at the bottom of the
sleeve facing toward the sleeve, Detail B. When the
draintube ispositionedatthedesiredangle,tightenthe
screws.
NOTE: If the wall sleeve has not been installed, the drain tube
must be rotated to a horizontal position until after the
sleeve is installed. Tighten the mounting plate screws
when the tube is in the proper position. Make certain
that the four overflow slots at the rear of the wall sleeve
are not blocked. (See the drawing below.)
Cover Plate Installation
4. Mount the foam gasket to the cover plate. Using two
#10 x 1/2" sheet metal screws (provided), attach the
cover plate to the remaining drain hole. Make certain
the large flange on the plate is positioned at the bottom
of the sleeve.
5. Discard the additional cover plate, gasket, machine
screws, and locknuts.
PXDR1O
QUANTITY
2
1
1
3
4
2
2
DESCRIPTION
COVER PLATES
MOUNTING PLATE
DRAIN TUBE
MOUNTING PLATE GASKETS
#10 X 1/2" MOUNTING SCREWS
10-24 X 1/2" MACH. SCREWS
LOCKNUTS
DETAIL A
DETAIL B

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Wall Sleeve Installation Instructions (PDXWS)
NOTE: Insurethattheunitisonlyinstalledinawallstructurallyadequatetosupporttheunitincludingthesleeve,chassisandaccessories.
If the sleeve projects more than 8" into the room, a subbase or other means of support MUST be used. Please read these instructions
completely before attempting installation.
For Deep Wall Installation See Section II
The following instructions apply ONLY to walls less than
13 1/4" in depth.
1. From inside the building, position the wall sleeve in the
opening and push it through the wall so it protrudes at least
1/4" on the outside, note Figure 5.
2. Position the wall sleeve with a slight tilt towards the outside
to facilitate condensate drainage. It should be level side-to-
sideandthefrontshouldbe1/4bubblehigherthantheback.
DO NOT allow any pitch toward the inside.
Electrical shock hazard.
Turn electric power OFF at the fuse box or service panel
before making any electrical connections and ensure a
proper ground connection is made before connecting line
voltage. Failure to do so can result in property damage,
personal injury and/or death.
Typical Wall Sleeve Installation
Figure 5
42¼"
(107.3 cm) min.
50" (127 cm) min.
10"
(25.4 cm)
max.
16¼"
(41.3 cm)
13¾"
(34.9 cm)
Lintel to support masonry walls
Electrical receptacle
Wall opening Wall sleeve Insulation Smooth side of screw
clip facing into room
Electrical receptacle
Insulation
Note: All 230/208V units are manufactured with a 60" power cord. The receptacle
locations above must be followed to ensure proper connections.

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920-087-04
3. Drill two 3/16" holes through each side of the sleeve
approximately 4" from top and 4" from bottom of sleeve.
Screw four #10 x 1" screws (included) or appropriate
fasteners for your installation, through the holes in the sides
of the wall sleeve.
4. Apply sealant around the wall sleeve where it projects
through the inside and outside wall surfaces. Apply the
sealant to the screw heads or the tops of the fasteners used
in Step #3.
NOTE: When sealing the sleeve on the outside of the
building, be careful NOT to let the sealant block the two
condensate drain holes or the four overflow slots at the
bottom flange of the sleeve.
Figure 7
NOTE: Construct wall opening to comply with all applicable
building codes.
Main studs
Jack studs
Main studs
Jack studs
Lintel
Mounting screw holes
No holes in bottom of wall
sleeve unless drain kit is used
5. Ifthechassisandexteriorgrillearetobeinstalledlater,leave
the weatherboard and center support in place, otherwise
remove and dispose of them.
6. Provide a support lintel if the wall sleeve is installed in a
concrete or masonry wall. (See Figure 7.)
13¾"
(35 cm)
A
B
¼"
(6.4 cm)
min.
Wall
Dimensions
Figure 6
Dimension*
A
Allow
for wall
finishing
B
Allow for floor finishing
(Minimum) Min. Max
No Accessories ¼"
(6.4 mm)* ¼" (6.4 mm) ---
With Subbase 1¾"
(4.5 cm) 3½" (8.9cm) 5" (12.7cm)
With Lateral Duct ¾"
(1.9 cm) ¼" (6.4 mm) ---
* If more than one accessory is to be used, use the maximum
dimension. If the wall thickness is more than 13¾" (35cm) -
(A + ¼" [6.4 mm]), a sleeve extension must be used.
L i n t e l I n s t a l l a t i o n

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If the wall is thicker than allowed in the notes in Figure 6, a sheet
metal wall sleeve extension and flashing MUST be used.
Installation Instructions for the PXWE – 4" Wall
Sleeve Extension
The following points MUST be considered when installing a wall
sleeve extension:
1 Provision must be made to direct excess condensate from
the back of the wall sleeve into the extension then outside
the building or to a drainage system.
2. Air baffles must be mounted to properly direct air flow to
and from the condenser.
3. The wall sleeveextension designmust allow for the proper
mounting of the grille.
4. Caulking is required at all sites where condensate or
external water could potentially infiltrate into the building.
5. Fabricateand installmetal flashing in wall to serve as a drip
panel. Refer to drawing for more information.
6. Condensate notches and overflow slots must be kept clear
of sealant and gaskets so condensate can flow freely into
the wall sleeve extension.
NOTE: Improper fabrication or installation of a wall sleeve
extension will impair PTAC performance.
Extension Installation
Secure the wall sleeve extension to the wall sleeve before
installing itin the wall. Refer toFigure 8for a guidefor fabrication
ofacondensatedrippanel.ThepanelMUSTextendthefulldepth
of the wall sleeve and the wall sleeve extension.
Pay particular care in sealing and caulking the panel where it
makescontactwiththewallsleeve(seeFigure8).Afterinstallation
in the wall, secure with fasteners through the sides. Use a good
grade of silicone sealant around the sleeve extension. Seal all
exposed screw heads. When the installation is complete, the
outside grille should be attached to the wall sleeve extension.
Section II — Deep Wall Installation (PXWE)
Figure 8
IMPORTANT NOTE: The silicone bead MUST extend 3"
up the side of the two flanges to prevent condensate
from leaking.
Wall Sleeve Extension, 42" X 16" Frame, 20 gauge minimum, painted or aluminium
Outside Edge
Insulation
Wall Sleeve
Air Baffles
Condensate
Notches (4)
Condensate
Drip Panel
(Field
Supplied)
Sealant inside (4) bottom corners
Drip
Edge
Width of Wall
PXWE Wall Sleeve
Extension
Wall Sleeve Extension Sealant Locations

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Plastic handles Plastic
grommets
1. Remove the center support and weatherboard if still installed
in the sleeve.
2. Insert six plastic grommets into the grille openings from the
outside of the grille as shown in Figure 9.
3. Insert two #8 x 3/8" sheet metal screws (provided) in the top
twooutsideedgeplasticgrommets,andtightenthemhalfway
into the grommets.
4. CAUTION: Bodily injury can be caused by grilles falling from
a building during installation. It is recommended that a safety
line be attached to the grille and an anchor point inside the
building during installation.
Installation Instructions Model PXGA Standard Grille
5. Grasp the grille by the attached plastic handles. Position
it with the condensate drain knockouts facing down. From
inside the building, maneuver the grille through the wall
sleeve and pull toward you until the screw heads are
inserted into the keyhole slots at the top of the wall sleeve.
Tighten the two screws completely.
6. Insert the remaining screws into the remaining holes and
tighten securely.
Wall sleeve
Weatherboard
Center support
Description
Stamped Aluminum Grille
Plastic Grommets
#8 x 3/8" Sheet Metal Screws
Quantity
1
6
6
PXGA Standard Grille
Standard Grille
Figure 9

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A. Electrical Rating Tables
All 230/208 volt units are equipped with power cords. See Appendix A on page 21 for wiring instructions on 265V units.
NOTE: Use Copper Conductors ONLY. Wire sizes are per NEC, check local codes for overseas applications.
WIRE SIZE Use ONLY wiring size recommended for
single outlet branch circuit.
FUSE/CIRCUIT
BREAKER
Use ONLY type and size fuse or HACR cir-
cuit 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.
GROUNDING
Unit MUST be grounded from branch circuit
through service cord to unit, or through sep-
arate ground wire provided on permanently
connected units. Be sure that branch circuit
or general purpose outlet is grounded. The
field 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 NOTalter theservicecord
or plug. Do NOT use an extension cord.
RECEPTACLE
The field 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 NOTalter theservicecord
or plug. Do NOT use an extension cord.
WIRE SIZING
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.
B. Power Cord Information (230/208V models only)
AllFriedrich230/208VPTACunitsareshippedfromthefactorywith
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.
ELECTRICSHOCKHAZARD! Turnoffelectricpowerbeforeserviceorinstallation.
AllelectricalconnectionsandwiringMUSTbeinstalledbyaqualifiedelectrician and
conform to the National Electrical Code and all local codes which have jurisdiction.
Failuretodosocanresultinpropertydamage,personalinjury and/or death.
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 1 250 V Receptacles and Fuse Types
AMPS 15 20* 30
RECEPTACLE
TIME-DELAY TYPE FUSE
(or HACR circuit breaker) 15 20 30
AWG –American Wire Gauge
* Single circuit from main box
** Based on copper wire, single insulated conductor at 60°C
Table 2 Recommended branch circuit wire sizes*
NAMEPLATE / MAXIMUM
CIRCUIT BREAKER SIZE AWG WIRE SIZE**
15
20
30
14
12
10
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
resettheLCDIdevice.IftheLCDIdevicetripsandrequiresresetting
the cause of the trip should be identified prior to further use of the
PTAC.
If the device fails to trip when tested or if the power supply cord is
damaged itmust bereplaced withanew supplycord obtainedfrom
the product manufacturer, and must not be repaired.
Figure 10b
30A LCDI Device
15/20A LCDI Device
Figure 10a
TEST
RESET
Test Button
Reset Button
2"
4.1"
Test Button
Reset Button
7"
2"

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Section III – Chassis Installation
1. Removetheweatherboardandcentersupportfromthesleeve
(if still in place). Be sure an outdoor grille is attached.
Check to be sure the wall sleeve, extension (if used), grille, and drain kit are installed properly before chassis installation.
2. Removethefrontcovercontainedinaprotectiveplasticbag
from chassis. Remove the bag and dispose of it properly.
If the control door is not installed, follow these steps:
• From the front of the cover, slide the right control door pin
into the hole on the right side of the front cover. Slide the
left door pin into the hole on the left side of the front cover
opening and snap it into place.
3. Remove the two chassis shipping brackets from the ends
of the shipping pallet.
NOTE: To avoid breaking the door or hinge pins, do not apply
excessive force when installing
Suffocation hazard
Keep bag away from babies and children.
Do NOT use in cribs, beds or playpens. Destroy
immediately after opening. This bag is NOT a toy.
Failure to do so can result in personal injury and/or death
IMPORTANT: Useawallsleeveadapterkit(PXSE)if
installing a P-Series chassis in a T-Series sleeve.
Compressor
Chassis
shipping bracket
Shipping pallet
IMPORTANT: When installing a Friedrich P-Series PTAC into an
existing sleeve, it is important to ensure that the unit is installed
completely. Inspection of theair sealbetween the condenser air
bafflesandaround theindoormountingflangeisrecommended.
In some cases additional gaskets or baffling may be required.
Wall sleeve
Weatherboard
Center support
1
Control
Door
Pins
Front Panel
2
3
Installation Checklist

Inspect all components and accessories for damage
before and after installation.

Remove the cardboard wall sleeve support and grille
weatherboard.

Check for proper wall sleeve installation in accordance
with the wall sleeve installation instructions.

Check for a subbase kit or other means of structural
support which is required for ALL installations projecting
more than 8" into room.

Install the recommended Condensate Drain Kits for
complete condensate removal.

Ensure that the chassis is installed in a 16" high x 42" wide
wall sleeve that is no deeper than 13 3/4". A baffle kit is
required if the sleeve exceeds that depth.

Ensure that drapes, bed, bedspread, furniture, etc. DO
NOT block either return or discharge air grilles.

Inspect the condenser air inlet and outlet for any
obstructions (shrubbery, etc.)

Ensure that 'reset' button is pressed on LCD device (only
on cord connected models)

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4. Center the chassis in the pre-installed sleeve and carefully
pushthechassisuntilthechassisflangeandgasket contact
the sleeve flange.
If a remote thermostat is to be installed, proceed to page 18, Step 1. For a 265 V unit, proceed to Appendix A, Step 1.
NOTE: If the unit is mounted flush to the floor, the service cord
MUST be rerouted at the bottom of the front cover on the side
closest to the receptacle. A notch MUST be made in the front
cover side where the cord exits the unit. It is the responsibility of
theinstallertocreateanexitnotch. Seediagram8forsuggested
opening size and placement.
7. If the filters are not already installed in tracks in the plastic
cover, slide them into place.
8. Plugthecord(ifapplicable)intotheappropriate receptacle.
Extra cord may be coiled inside the front cover behind the
return air grille. Restore power to the unit.
5. Locatethefour#10x1"chassismountingscrews. Tighten
thescrewsintotheclips- adjacenttothealignmentdimples
on the mounting brackets on the wall sleeve flange (two
per side).
6. Install the front cover assembly (including the discharge
grille) by placing the top of the cover onto the 90° angle
bracketalongthetopofthechassis. Rotatethebottominto
place and insert the included thumb screws into the slots
located at the bottom back corners of the cover. Tighten
To remove the front cover, remove the thumbscrews
at the bottom back corners of the cover (or sides).
Pull the bottom end forward and lift it up to clear the
L bracket across the top of the chassis.
Copper refrigerant tubes are NOT handles.
Do NOT use tubing to lift or move chassis.
Not to scale
Wall sleeve
Wall sleeve flange
Chassis flange
and gasket
4
6
7
8
them into the quick nuts located on the chassis to secure
the cover. If the unit has been placed such that there is no
room toinsertthe thumbscrewsfrom the bottom, requesta
Side Mounting kit (Part No. PXSM) from Friedrich. Locate
the service cord or conduit in the notch at the bottom right
of the front cover.
Chassis
mounting screw
Screwclips
Chassis
flange
5

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Digital Control User Input Configuration
The adjustable control dip switches are located at the lower left hand portion of the digital Smart Center. The inputs are only visible
and accessible with the front cover removed from the PTAC.
Dip Switch Setting
1) Electronic Temperature Limiting – Switches 1-4
The digital control is set from the factory to allow a tempera-
ture range between 60°F and 90°F in both heating and cooling
mode. Dip Switches 1-4 can be used to set high and low limits
for either heating or cooling or both.
From the factory all four switches are in the up ‘ON’ position.
The charts to the right show the available electronic limiting
ranges.
2) Fan Cycle Control – Switch 5
All PTACs are shipped from the factory with Dip Switch 5 in the
‘OFF’ position to cycle the fan only when there is a demand for
the compressor or heater. As an option the fan may be set to
‘continuous’ mode by switching Dip Switch 5 to ‘ON’ position to
run the fan continuously while the unit is powered on.
To ensure that the room temperature is maintained evenly while
in fan cycle mode the Even Temp Load Anticipation feature is
enabled. Quiet Fan Delay is also enabled in fan cycle mode to
lessen the acoustical change between compressor start up and
shut off by running the fan for 5 seconds before each demand
cycle, and 30 seconds after cooling or 15 seconds after heating
cycles.
3) Room Freeze Protection – Switch 6
Unitsareshippedfromthefactorywiththeroomfreezeprotection
disabled. Room Freeze Protection can be switched on at the
owner’s preference by moving Dip Switch 6 to ‘ON’. This feature
will monitor the indoor room conditions and in the event that the
room falls below 40°F the unit will cycle on high fan with the
electric heater. This occurs regardless of mode.
4) Emergency Heat Override – Switch 7
In the unlikely event of a compressor failure a heat pump unit
may be switched to operate in only the electric heat mode until
repairs can be made. Moving Dip Switch 7 to ‘ON’.
Note: PTAC must be disconnected from power supply
when making any configuration changes.
Temperature
Range Dip Switch
Low High 3 4
60 90 On On
63 90 On Off
66 90 Off Off
69 90 Off On
Cooling Range Switches 3 & 4
Heating Range Switches 1 & 2
Temperature
Range Dip Switch
Low High 1 2
60 90 On On
60 87 Off On
60 84 Off Off
60 81 On Off
Figure 11
Factory Dip Switch Configuration
12 345678
O
N

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Digital Control Operation
Temperature Display
The Friedrich digital PTAC is shipped from the factory to display
the desired room temperature on the LED readout.
The unit can be configured to display the room temperature by
simultaneously pressing the ‘ Cool ’ and ‘ High Fan’ buttons
for three seconds the display will show an ‘ R ’ for one seconds
to acknowledge the change. The unit will display the setpoint
whenever the ‘Temp’ or buttons are pressed and then
switch back to room temperature.
To revert back to displaying the setpoint only press the ‘ Cool ’and
‘ LowFan’ buttonsforthreesecondssimultaneously,theunitwill
display an ‘ S ’ for one seconds to acknowledge the change.
ºF vs. ºC Display
The unit is factory configured to display all temperatures in
degrees Fahrenheit (
ºF
). To switch to degrees Celsius press
the ‘ Fan Only’ and ‘Low Fan’ buttons simultaneously for three
seconds. The display will show a ‘ C ’ as acknowledgement of
the change.
To revert back to
º
Fpressthe‘ FanOnly’ and‘ LowFan’ buttons
simultaneously for threeseconds. Thedisplaywillshowan‘ F ’ as
acknowledgement of the change.
Cooling Mode
Pressingthe‘ Cool ’buttonwhiletheunitisinanymode,including
off, will put the unit into cooling mode. Adjust the temperature
readout to the desired room temperature and the unit will cycle
the compressor on and off to maintain a comfortable room. The
compressor will come on anytime that the room temperature
is 1.8°F above the desired temperature. The fan operation is
dependentonthefanmodeselected,eithercontinuousorcycling.
See page 16 for fan cycle control.
Heating Mode
Pressingthe‘Heat’buttonwhiletheunitisinanymode,including
off, will put the unit into heating mode.
Heat Pump Models (PDH)
When the ‘Heat’ button is pressed initially the unit will energize
the electric resistance heat to quickly bring the room to the
set temperature. When the desired room temperature falls
1.8°F below the desired set temperature the unit will cycle the
compressoronandoperateasaheatpumptomaintaintheroom
temperature while running more efficiently than resistance heat
only models. If the room temperature should fall more than 5°F
from the set temperature the unit will run the resistance heater.
The fanoperation isdependenton the fanmode selected,either
continuous or cycling. Dip switch 5 controls the fan mode, see
page 16 for setting.
Whentheoutdoorcoiltemperaturefallsbelow30°Fformorethan
2 minutesthe unitwill operatethe resistance heaters andnot the
compressor. When the outdoor coil temperature reaches 45°F
the compressor will be allowed to operate again.
Heat/Cool Models (PDE)
Afterpressingthe‘Heat’button,adjustthetemperaturereadoutto
thedesiredroomtemperatureandtheunitwillcycletheresistance
heat on and off to maintain a comfortable room. The heater will
come on anytime that the room temperature is 1.8°F below the
desired temperature. The fan operation is dependent on the fan
modeselected,eithercontinuousorcycling.Dipswitch5controls
the fan mode, see page 16 for setting.
Emergency Heat Operation
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. Dip switch 7
controls the emergency heat setting, see page 16.
Fan Mode
Fan Only
Pressing the ‘ Fan Only ’ button will run the fan to allow for air
circulation in the room without operating the compressor or
heaterregardless of theroom or settemperature. Thefan speed
selection is made by pressing either the ‘ High Fan ’ or ‘ Low
Fan ’ button.
Cycle/Continuous
Theowner maychoosebetweenfan cyclingor fancontinuous
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 used to keep constant
airflow circulation in the room during all times the unit is ‘ON’.
Fan cyclewill conserveenergybyonly operatingthe fan while
the compressor or electric heater is operating. Dip switch 5
controls the fan mode, see page 16 for setting.
Figure 12
Digital Control Panel

18
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R Y W B GL GH C D1 D2 F1 F2
JP1
12 34 56 78
ON DIP
Remote Thermostat and Low Voltage Control Connections
To control the unit with a wall mounted thermostat follow
the steps below:
1) Withthefrontcoverremovedlocatethelowvoltageterminal
strip at the lower portion of the Smart Center.
2) Remove the jumper between the ‘GL’ and GH’ terminals.
3) The control is now configured for control by a wall thermo-
stat. The Smart Center will no longer control the unit.
4) If desired the accessory escutcheon kit (PDXRT) is to be
used, install it over the existing control panel.
Note:TorevertbacktotheSmartCentercontroloftheunitreplace
the jumper wire between the ‘GL’ and ‘GH’ terminals that was
removed in step 1.
Thermostat Connections
C = Common Ground
W = Call for Heating
Y = Call for Cooling
R = 24V Power from Unit
GL = Call for Low Fan
GH = Call for High Fan
B = Reversing Valve Energized in heating mode
(PDH Models Only)
*If only one G terminal is present on thermostat connect to GL
for low fan or to GH for high fan operation.
Remote Thermostat
All Friedrich PD model PTAC units are factory configured to be
controlled by either the chassis mounted Smart Center or a 24V
single stage remote wall mounted thermostat. The thermostat
may be auto or manual changeover as long as the control
configuration matches that of the PTAC unit.
Figure 13
Control board with optional PDXRT escutcheon kit installed

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The vent control lever is located behind the front cover on the
left side of the unit. The unit is shipped in the closed position
with a locking screw in place. The screw must be removed to
operate the lever. When the lever is back, (OPEN), outside air
is mixed with indoor air. When the lever is forward, (CLOSED),
no outside air is admitted into the room and room air is recycled
through the unit.
G. Fresh Air Vent Control
NOTE: The vent should remain closed for peak operating efficiency.
Auxiliary Fan Control
The Smart Center also has the ability to control a 24VAC relay
to activate an auxiliary, or transfer, fan. The outputs are listed as
F1 and F2 on the control board.
To connect the relay, simply wire one side of the relay to F1 and
theothersidetoF2.AnytimethatthePTACfanrunstheterminals
will send a 24VAC signal to the relay. The relay must be 24 VAC,
50mA or less.
Note: The relay and auxiliary fans must be field supplied.
NOTE: It is the installer's responsibility to ensure that all control
wiring connections are made in accordance with the installation
instructions.Improperconnectionofthethermostatcontrolwiring
and/or tampering with the unit's internal wiring can void the
equipmentwarrantyandmayresultinpropertydamage,personal
injury or death. Other manufacturer's PTACs and even older
Friedrich models may have different control wire connections.
Questions concerning proper connections to the unit should be
directed to the factory.
Wire Size Maximum Length
#24 400 ft.
#22 600 ft.
#20 900 ft.
#18 1500 ft.
#16 2000 ft.
Desk Control Terminals
The Friedrich PD model PTAC has built-in provisions for
connection toan external switch tocontrol powerto theunit. The
switch can be a central desk control system or even a normally
open door switch.
For desk control operation connect one side of the switch to the
D1 terminal and the other to the D2 terminal (See figure 13).
Whenever the switch closes the unit operation will stop.
Maximum Wire Length for Desk Control Switch
Note: The desk
control system and
switches must be
field supplied.
H. Air Discharge Grille
Theairdischargegrillecanberedirectedtoblowaireitherstraightuporatanangleintotheroom. Tochangetheairflowdirection,remove
the front cover, locate and remove the six grill retaining screws. Reverse the ends of the grille and refasten the grille to the cover.
Moving parts hazard.
Turn off electric power before
servicing this component.
Failure to do so can result in property
damage, personal injury and/or death.

20
920-087-04
I. Start-up Checklist

Inspect all components and accessories for
damage before and after installation.

Check installation for compliance with all national
and local codes and ordinances.

Read and follow all manufacturer's installation
instructions.

Check that circuit breaker(s) and electrical wire
sizes are correct. If the unit is supplied with a
power supply cord, insure that it is stored properly.

Check the condensate water drain outlet(s) to
make sure they are in compliance with all national
and local codes, that they are adequate for the
removal of condensate water, and that they meet
the approval of the end user.

Strictly follow installation instructions concerning
clearances around the unit.

Secure components and accessories, such as the
control door and front cover.

Check the unit air filter, condenser coil and
evaporator coil for any obstructions.

Check for proper operation of all components.

Instruct the owner or operator of the units
operation, and the manufacturer's
recommended routine maintenance schedule.
NOTE: It is highly recommended that a maintenance
schedule log book be prepared for recording
the dates and times of service.

Operate the unit for twenty minutes. Record
the unit's indoor/outdoor intake and discharge
temperatures, amperage draw, and power voltage.

Assemble the Warranty Certificate, the Operation
and Installation Manual, all accessory installation
instructions and the name, address and telephone
number of the Authorized Friedrich Warranty
Service Company in the area for the owner or
operator.
NOTE: Units are to be installed, inspected, and checked by qualified service personnel only.