Page 1
WallMaster®PTAC
PackagedTerminalAirConditioners& Heat Pumps
• Standard
• RemoteThermostat
• SeacoastProtected
Installation& OperationManual
920-087-02 (9-03)
Page 2
920-087-02(9-03)
TableofContents
UnitComponents......................................................................................................................................................................................... 2
P-SeriesAnnouncement/ModelNumberCode............................................................................................................................................ 3
InstallationRecommendations.................................................................................................................................................................... 4
DrainKit Installation ................................................................................................................................................................................ 5-6
Wall SleeveInstallation............................................................................................................................................................................ 7-8
DeepWall Installation .................................................................................................................................................................................. 9
Standard GrilleInstallation ........................................................................................................................................................................ 10
InstallationChecklist................................................................................................................................................................................. 11
Electrical RatingTables.............................................................................................................................................................................. 11
ChassisInstallation............................................................................................................................................................................. 12-13
Standard UnitOperations.......................................................................................................................................................................... 14
TemperatureLimitingThermostat .............................................................................................................................................................. 14
HeatingControl(Heat Pumps& Emergency Heat)..................................................................................................................................... 15
FanCycleSwitch....................................................................................................................................................................................... 15
FreshAirVent Control................................................................................................................................................................................ 15
AirDischargeGrille.................................................................................................................................................................................... 16
Start-up Checklist...................................................................................................................................................................................... 16
AppendixA: RemoteThermostatWiring............................................................................................................................................... 17-18
AppendixB: ElectricalWiringfor 265 V Models........................................................................................................................................ 19
RoutineMaintenance................................................................................................................................................................................ 20
BasicTroubleshootingTechniques............................................................................................................................................................. 21
Accessories......................................................................................................................................................................................... 22-23
Warranty................................................................................................................................................................................................... 24
TypicalUnit Components
Chassis
tcover
2
Page 3
920-087-02 (9-03)
Announcing the FriedrichP-Series PackagedTerminalAir Conditioner.
A new approach to reliability and efficiency. A totally redesigned Friedrich PTAC.
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.
ModelNumberCode
Series
P= Pseries
System
X= Accessory
E= Coolingwith or
withoutelectric heat
H =Heat Pumpwith
Auxiliary Heat
NominalCoolingCapac_y
07 = _000 Btuh
09 = 9,000 Btuh
12 = 12,000 Btuh
15 = 15,000 Btuh
PH07K 3 S A 1
L
I Engineering Digit I
I Designsedes I
Options
S = Standard
R = RemoteThermostat
C = SeacoastProtection
X = RemoteThermostatand
SeacoastProtection
NominalHeaterSize
(@230V or 265V)
0 = NoHeater
2 = 2.5 KW
3 = 3.4 KW
5 = 5.0 KW
Voltage
K = 230/208V-1Ph.-60 Hz.
R = 265V-1Ph.-60 Hz.
Please read this manual thoroughly prior to equipment installation or operation. Itisthe 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 Universal Mechanical Code current edition and applicable local
or national codes.
3
Page 4
920-087-02 (9-03)
PTACInstallation Recommendations
ForproperPTACunitperformanceandmaximumoperatinglifepleaserefertothe minimuminstallationclearancesbelow:
Figure I
PTAC units should be installed
no closer than 12"apart when
two units are side by side. If
three of 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.
VIEW: OUTSIDE
BUILDING ELEVATION
60" VERTICAL M]MUMUM
BETWEEN PTACs
THREE OR MORE PTACs
#,DJACENT 36" MINIMUM
GROUND FLOOR PTACs
6" MINIMUM FROM GRADE
Figure 2
ForPTACsonthegroundfloororanytimeobstructionsarepresent,usethefollowingguidelines:
• 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
PTAC 7 PTAC r
like a condensing unit, a
minimum distance of 36"
should be kept.
12" MINIMUM, MINOR
OBSTRUCTIONS _ 36"
36" MIMUMUM, MAJOR _
OBSTRUCTIONS _) ' ' ' FENCE OR WALL'
The above suggestions are for reference only and do notrepresent 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.
TYP. BUILDING ( PLAN VIEW )
-- 36"_] [_ 36"--
I I
I I
I I
I I
CONDENSING UNIT
PTAC
4
Page 5
920-087-02(9-03)
Installation Instructions PXDRIO DrainKit
NOTE: Determine whetherdrain willbe located within the wall,on the indoor side, orwill drain to the exteriorof the building. Follow
appropriate instructionsbelow depending on yourparticular type of installation.
Internal Drain (optional for new construction)
NOTE: Ifinstalling an internaldrain,you MUST installa drainkit 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.
,
Removethe backingfrom thegasket and mount iton 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 beagainst the wall sleeve.
4. Position the assembly beneaththe drilled holes and secure
itwith #10-24 x 1/2" machine screws and locknuts provided.
Seal the tops of the screws with silicone caulking.
Figure 3
DrainKitLocationandInstallation
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,
76 cm
5. Use 1/2" I.D.copper tube, PVCpipe, or vinyl hose (obtained
locally) to connect the internaldrain tube to the drain system
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 metal
screws provided. Makecertain that the four overflow slotsat
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 sleevewhere the hole was
drilled for the drain tube.
Screw [_
Wail sleeve
Gasket t t
Mounting plateNut _ j _ I \\
i
)
5
Page 6
920-087-02 (9-03)
ExtemalDrain(for newconstructionorunit replacement)
When usingan external drain system, the condensate is removedthrough eitherof two drain holes on the back of thewall sleeve. Select
the drain hole which best meets your drainagesituation and install the drain kit. Seal offthe other with a cover plate.
Drain Tube Installation
1. Peelthe backing tape off thegaskets and apply thesticky
side toone cover plateand one mounting plateas shown
in Details A and B,
2. Placethedrain tube throughthe gasketand the mounting
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
themountingplateispositionedatthe bottomofthe sleeve
facing toward thesleeve, Detail B. When thedrain tube is
positioned at the desired angle,tighten the screws.
NOTE: Ifthe wallsleeve hasnot been installed,the draintube 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 slotsat the rearof the wallsleeveare notblocked.
(See the drawing below.)
Figure 4
DrainKitInstallation
Cover Plate Installation
4. Mountthefoamgaskettothecoverplate. Usingtwo#10x
1/2"sheet metal screws (provided),attachthe cover plate
tothe remaining drainhole. Make certain the largeflange
on the plate is positioned at the bottom of the sleeve.
5. Discardtheadditionalcoverplate,gasket,machinescrews,
and Iocknuts.
QUANTITY DESCRIPTION
2
1
1
3
4
2
2
COVER PLATES
MOUNTING PLATE
DRAIN TUBE
MOUNTING PLATE GASKETS
#10 X 1/2" MOUNTING SCREWS
10-24 X 1/2" MACH, SCREWS
LOCKNUTS
gasket
plate
DETAIL A
Foam gasket _ _/2"O.D.tube
Mounting plate #10 sheet metal screws
_DETAIL B
NOTES:
The large flange on the mounting plate is positioned at the bottom of the sleeve facing toward the sleeve. The drain tube must be rotated to a 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.
6
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920-087-02(9-03)
WallSleeveInstallation Instructions(PXWS)
NOTE: Insurethat theunit is only installed inawall structurallyadequatetosupport the unitincludingthe sleeve,chassis andaccessories.
Ifthe sleeve projects more than 8" intothe room, a subbase or other means of support MUST be used. Please read these instructions
completely before attempting installation.
Figure 5
TypicalWall Sleeve Installation
Lintel to support masonry walls .--_.b_//_
10"
(25.4 cm
Electrical receptacle -
Wall opening Wall sleeve
ForDeep Wall Installation See Section II
1 1_ _ /]
/
41._m) _\_'[_ -- -- Electrical receptacle
Insulation --
Smoothsideofscrew
slip facing into room
The following instructions apply ONLY to walls less than
13 1/4" in depth.
1. Frominside thebuilding,positionthewall sleevein theopening
and push it throughthe wall so itprotrudes at least 1/4"onthe
outside, note Figure 5.
2. Position thewall sleeve with a slight tilt towards the outsideto
facilitate condensate drainage. It should be levelside-to-side
and the front should be 1/4 bubble higher than the back. DO
NOT allow any pitch towardthe inside.
Electricalshock hazard.
Turnelectric power OFFat the fuse box or service panel
before making any electrical connections and ensure a
proper ground connectionis made before connecting line
voltage. Failureto do so can result in property damage,
personalinjuryand/ordeath.
Page 8
Figure 6
Dimensions
S
'_7€/////_ _ 6.4 cm
A
13¾ _
920-087-02 (9-03)
A B
Dimension*
in.
No Accessories ¼" ¼"
With Subbase 1¾" 3½" 5"
With Lateral Duct ¾" ¼"
Allow Allow for floor finishing
for wall
finishing
(Minimum) Min. Max
(6.4 ram)* (6.4 mm) ---
(4.5 cm) (8.9cm) (12.7cm)
(1.9 cm) (6.4 mm) ---
_ ...........Wall
,
Drill two 3/16" holes through each side of the sleeve
approximately4" from top and4"from bottomof sleeve. Screw
four#10x 1"screws (included)or appropriatefastenersfor your
installation, through the holes inthe sides of the wall sleeve.
4. Apply sealant around thewall sleevewhere itprojectsthrough
the insideand outside wall surfaces. Apply the sealant tothe
screw headsor 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.
Rgure 7
LintelInstallation Jack studs
Main studs
* If mere than one accessory [sto be used, use the maximum
dimension. If the wail thickness is more than 13¾" (35cm) -
(A + ¼" [6.4 mm]), a sleeve extension must be used.
5. Ifthe chassisandexteriorgrilleareto beinstanedlater,leavethe
weatherboard and center support in place,otherwise remove
and dispose of them.
6. Providea supportlintelifthewall sleeve isinstalledina concrete
or masonry wall. (See Figure 7.)
Untel
Jack stud
Mounting screw holes
No holes in bottom of wall
sleeve unless drain kit is used
NOTE: Construct wall opening to comply with all applicable
building codes.
8
Page 9
920-087-02 (9-03)
Section II - DeepWall Installation(PXWE)
If the wail 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:
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 airflow to and
from the condenser.
3. The wail sleeve extension design must allow for the proper
mounting of the grille.
4. Caulking is required atansiteswhere condensate orexternal
water could potentially infiltrate intothe building.
5. Fabricate and install metal flashing in wall to serve as a drip
panel. Refer to drawingfor more information.
6. Condensate notches and overflow slots must be kept clear
ofsealantand gasketsso condensate canflow freely intothe
wall sleeve extension.
NOTE: Improperfabricationor installationofawallsleeveextension
will impair PTAC performance.
Extension Installation
Secure thewall sleeveextensionto thewailsleeve beforeinstalling
it in the wall. Refer to Figure 8 for a guide for fabrication of a
condensate drip panel. The panel MUST extend the full depth of
the wail sleeve and the wail sleeve extension.
Payparticular careinsealingand caulkingthe panelwhere itmakes
contact with the wall sleeve (see Figure 8). After installationin 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.
Figure8
WallSleeveExtensionSealant Locations
IMPORTANT NOTE: The silicone bead MUST extend 3"
®
2 n
Width of Wall Edge Notches (4)
up the side of the two flanges to prevent condensate
from leaking.
Wall Sleeve
Outside Edge
Insulation
Drip
Wall Sleeve Extension
Rear Flange Flange
| Wall SLoe %_j_) |
Silicone Bead T-_ "%'
Sealant
I Drip Panel L
Sealant around perimeter
Wall Sleeve
Wall Sleeve
Extension
Sealant inside (4) bottom corners
Wall Sleeve Extension, 42" X 16" Frame, 20 gauge minimum, painted or aluminium
9
Page 10
920-087-02(9-03)
Installation InstructionsModelPXGAStandardGrille
1. Remove the centersupport and weatherboardifstininstalled
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
two outside edgeplasticgrommets, and tighten them halfway
intothe grommets.
4. CAUTION: Bodilyinjury can be caused by grillesfalling from
a building during installation. Itis recommended that a safety
line be attached to the grille and an anchor point inside the
building durinq installation.
Figure 9
StandardGrille
5. Graspthegrille bythe attached plastic handles. Positionitwith
thecondensate drainknockoutsfacing down. From insidethe
building, maneuver the grille through the wall sleeve and pull
toward you untilthe screw headsare inserted intothe 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.
Quantity Description
1 Stamped Aluminum Grille
6 Plastic Grommets
Figure 9
6 #8 x 3/8"Sheet Metal Screws
Waft sleeve
-- Weatherboard
-- Center support
Plastic handles
\
\
Plastic
grommets
10
Page 11
A. Installation Checklist
[]
Inspect all components and accessories for damage
before and after installation.
[]
Removethe cardboard wall sleeve support and grille []
weatherboard.
[]
Check for proper wall sleeve installation in accordance
with the wall sleeve installation instructions.
[]
Check installationof the wall sleeve foam gasket.
920-087-02(9-03)
[] Installthe recommended Condensate Drain Kitsfor
complete condensate removal.
Ensurethatthe chassis is installed in a 16" high x42" wide
wall sleeve that isno deeper than
13 3/4". A baffle kit is requiredif the sleeve exceeds that
depth.
[] Ensure that drapes, bed, bedspread, furniture, etc. DO
NOT block either returnor discharge air grilles.
Check for a subbase kit or other means of structural
[]
support which is required for ALL installations projecting
[] Inspect the condenser air inletand outlet for any
obstructions (shrubbery,etc,)
more than 8" into room.
B. ElectricalRatingTables
All230/208 voltunitsare equippedwithpowercords.SeeAppendixBonpage19 for wiringinstructionson 265V units.
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 (_ (_ (_
MANUFACTURER PART NUMBERS
Hubbell 5661 5461 9330
P & S 5661 5871 5930
GE GE4069-1 GE4182-1 GE4139-3
Arrow-Hart 5661 5861 5700
Table 2 Recommended branch circuit wire sizes*
Nameplate
maximum circuit breaker size AWG Wire size**
AWG -American Wire Gauge
* Single circuit from main box
** Based on copper wire, single insulated conductor at 60°C
15 14
20 12
30 10
TiME-DELAY TYPE FUSE 15 20 30
(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.
Wire Size Use ONLY wiringsize recommendedfor single outlet branch circuit.
Fuse/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
Breaker owner. NOTE: A time delay fuse is provided with 265V units.
Unit MUST be grounded from branch circuit through service cordto unit, or through separate ground wire providedon permanentlyconnected units.
Grounding Besure that branch circuit or general purpose outlet is grounded. The field supplied outlet must match plugon service cord and be within reach of
service cord. Refer to Table I for proper receptacle and fuse type. Do NOT alter the service cord or plug. Do NOT use an extension cord.
The field supplied outlet must match plug on service cord and be within reach of service cord. Refer to Table 1for proper receptacle and fuse type.
Receptacle 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
Wire Sizing copper conductors only.
Turnoffelectricpowerbeforeserviceorinstallation
A_IelectricalconnectionsandwiringMUSTbeinstaUedbya qualifiedelectricianand
confon'nto theNationalElectricalCodeandalllocalcodeswhichhavejurisdiction
Failuretodo socanrescttinpropertydamage,personalinjuryand/ordeath.
Electric shock hazard.
11
Page 12
920-087-02(9-03)
Section III - ChassisInstallation
* Check to be surethe wall sleeve, extension (if used), grille, and drain kit are installed properly before
chassis installation
1. Remove the weatherboard and center support from
the sleeve (if still in place). Be sure an outdoor grille is
attached.
Wall sleeve / Control
-- Weatherboard
Center support
NOTE: To avoid breaking the door or hinge pins, do not apply
excessive force when installing
_ Pins
Door
Front Panel
3. Remove the two chassis shipping bracketsfrom the ends of
the shipping pallet.
IMPORTANT:Useawa]]sleeveadapterkit(PXSE)if
installingaP-Serieschassisin aT-Seriessleeve.
Suffocation hazard
Keep bag away from babies and children.
Do NOT use in cribs, beds or playpens. Destroy
immediately after opening. This oag is NOT a toy.
Failure to do so can result in personal injury end/or death
2. Remove the front cover contained ina protective plasticbag
from chassis. Remove the bag and dispose of it properly.
If the control door is not installed,followthese steps:
Fromthe front of the cover, slidethe rightcontrol door pin into
thehole onthe right side of thefront cover. Slidethe left door
pin intothehole on the leftside ofthefront cover opening and
snap it intoplace.
@
Compressor
Chassis
shippingbracket
Shipping pallet
IMPORTANT: When installinga Friedrich P-Series PTAC intoan
existing sleeve, it is important to ensure that the unit is installed
completely. Inspection of the air seal between the condenser air
baffles and aroundthe indoormountingflange isrecommended. In
some cases additional gaskets or baffling may be required.
12
Page 13
920-087-02(9-03)
4. Center the chassis in the pre-instaned sleeve and carefully
push the chassis untilthe chassis flange and gasket contact
the sleeve flange.
®
....... Wall sleeve
Wallsleeveflange
Chassisflange
and gasket
NOTE: If the unit is mounted flush to the floor, the service cord
MUSTbereroutedat the bottom ofthefrontcoveron thesideclosest
to the receptacle. A notch MUST be made in the front cover side
where the cord exitsthe unit. Itis the responsibility of the installer
to create an exitnotch. See diagram 8 for suggested opening size
and placement.
at the bottom back corners of the cover. Tighten them into
the quick nuts located on the chassisto secure the cover. If
the unit has beenplaced such that there is no room to insert
the thumbscrews from the bottom, request a Side Mounting
kit (Part No. PXSM)from Friedrich. Locate the service cord
or conduit in the notch at the bottom rightof the front cover.
®
7. If the filters are not already installed in tracks in the plastic
cover,slide them intoplace.
8. Plug the cord (if applicable) into the appropriate receptacle.
Extra cord may be coiled inside the front cover behind the
return air grille. Restore power tothe unit.
®
®
mounting screw
5. Locate the four #10 x 1" chassis mounting screws. Tighten
the screws into the clips - adjacent to the alignment dimples
on the mounting brackets onthe wall sleeve flange (two per
side).
6. lnstanthefrontcover assembly(includingthedischargegrine)
by placing the top of the cover onto the 90° angle bracket
along the top of the chassis. Rotate the bottom into place
and insert the included thumb screws into the slots located
If a remotethermostat isto beinstalled,proceedto AppendixA,Step 1. Fora265 Vunit, proceedto AppendixB,Step 1. 13
Chassis
flange
To remove the front cover, remove the thumbscrews at
the bottom back comers 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.
®
Not to scale
Page 14
C.Standard UnitOperation
Rotatethe temperature dial in smallincrements in the
warmer or cooler direction.Moving the dial more than
1/4" at a time may overcompensate and result in an
extreme hotor cold situation.
Ifa remotethermostat is installed,see Appendix A,
page 18-20.
920-087-02 (9-03)
Control Operation
The full-range thermostat maintains room
temperature at the desired setting in both
Temperature the heating and cooling modes. Turnthe dial
counterclockwise forwarmer and clockwise
for a cooler temperature.
Operates the unit on cooling.Cooling will not
Low and High Cool begin ifthe room temperature is below60°F.
Operates the unit on heating. Some models
Low and High Heat do not providethis selection.
Circulates air within the room at high fan
Fan Only speed only. No heating or coolingfunctions
are active.
Standard Unit ControlPanel
_#ALLMAST E R ®
COOLING ONLY MODEL HEAT/COOL MODEL
D.TemperatureLimitingThermostat
1,
Set the thermostat knob to centerof dial.
2.
Removethe fourscrews holding thecontrol panel.Pull up on
thethermostat knob and remove it.
,
Locate the two temperature limiting screws. These screws
arefactory installedfor a maximumtemperature rangeof60°-
90°E Each holein the dialplate represents approximately a
4°change from the adjacent hole.
4,
To adjust the temperature range, move the temperature
limiting screws to the desired location.
5,
Replace the knob when the desired range has been set.
6,
Replace the control panel.
Remo_
knobs
Control panel
limiting
SCreWS
EXAMPLE: To set a maximum temperature range ofapproximately 64° to 86°F, move the screws to the locations shown in the diagram at right,
14
Page 15
920-087-02 (9-03)
E.HeatingControl (heat pumpsandemergencyheat operation)
NOTE: Heat pump models only. Heat pumpequipped models use
backup electric resistance heating coils. At extremely low,outdoor
ambient temperatures,theheat pumpisautomaticallydisabledand
the unit operates solely on electric resistanceheat.
This control islocated behindthe decorativefrontcover and isfound
on the right side panel ofthe chassis. Itsfunction isto allow youto
set the temperature range inwhich the heat pump operates. This
control switches the unit heat operation between heat pump and
HEATING CONTROL
COMMANDE DE CHAUFFAGE
CONTROL DEL CALOR
\OAD O_"
EMERGeNCy HEAT
CHAUFFAG£o URGENCE
CALOR D_ [ME_G_NCIA
250454-00
electric resistanceheatbasedon theoutdoorambient temperature.
These change-over temperatures are basedon the settings of the
control. Thefactory setting is attheone o'clock position. Ifyouwish
NOTE: The factory set point is recommended for optimum
performance.
to changethe factoryset point, insert a flat-bladed screwdriver into
the slot and turn counterclockwise to increase the changeover set
point, or clockwise to decrease it.
NOTE: Emergency heatoperation only. Intheevent ofa compressor malfunction inthe heat pump mode, turn the screw to the extreme
counterclockwise emergency heat position. The heater will then cycle using electric resistance heat only. Note that in the emergency
heat position,the compressor is locked out, disabling both heat pump and cooling operations. CALL A SERVICE PERSON. DO NOT
FORGET TO RETURN THE CONTROL TO ITS ORIGINAL POSITION AFTER REPAIRSARE MADE OR THE COMPRESSOR WILL
NOT COME ON IN COOLING MODE.
F.FanCycleSwitch
The fan cycle switch is located behind the decorative front cover
below the control panel. It is designed to operate the fan either
continuously or intermittently with the compressor or heating
elements. When the switch is in the CONTINUOUS position,the
fan will run continuously at the selected speed when the unit is
I I
CONTINUOUS CYCLE
GONTINU CICLO
250-458-02
CYCLE DU I
FAN VENTILATEUR I
CYCLE CICLO DEL
VENTILADOR
turned on, With the fan cycle switch in the CYCLE position,the fan
will run only when the compressor or heating elements cycle on.
NOTE: It is recommended that this switch be set in the continuous position for maximum comfort and temperature control.
G.FreshAirVentControl
OPEN CLOSED
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 removedto operatethe
lever. When the lever is back, (OPEN), outside air is mixed with
indoor air. When the lever isforward, (CLOSED), no outside air is
admitted into the room and room air is recycled through the unit.
NOTE: The vent should remain closed for peak operating efficiency.
OUVERT FERME
ABIERTA CERRADA
FRESH AIR DOOR IS FACTORY
SHIPPED IN CLOSED POSITION.
REMOVE TOP SCREW ON LEVER
TO OPEN DOOR.
250_453_01
VENT
AERATION
SALIDA (ESCAPE)
DEL AIRE
15
Page 16
920-087-02 (9-03)
H.Air DischargeGrille
Moving parts hazard
Turn oft electric power before
servicing this component.
Failure to do so can result in property
damage, personal injury and/or death.
I
I
I
®
The air discharge grillecan be redirectedto blowair either straightup or atan angle into the room. Tochangethe airflow direction, remove
the front cover, locate and remove the six grill retaining screws. Reverse the ends ofthe grille and refasten the grille to the cover.
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.
[] 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.
[] Operatethe 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.
] Secure components and accessories, such as the
control door and front cover.
NOTE: Unitsare to be installed, inspected, and checked byqualified service personnelonly.
16
Page 17
920-087-02(9-03)
AppendixA: RemoteThermostatUnitInstallation
RemoteThermostatSelection& WiringGuidelinesfor
PackagedTerminalAirConditioners
Follow the instructions and recommendations of the thermostat
manufacturer for installationand wiring. Do not usea conventional
heat pump thermostat with emergency electric heat selection for
our heat pump units. Our units make an automatic decision about
turning on electricheat ifthe heatingdemand cannot be metbythe
heat pumpdue to low outdoor temperatures.
NOTE: This unit is designed for use with a single stage thermostat only. Improper application of the thermostat may result in property
damage, personal injury or death.
Manual Changeover Thermostat
For Heat Pump equipped units: A single stage, heat/cool
thermostatwithaterminalforareversingvalve operationisrequired.
Terminal "B" should be continuously energized in the heat mode
and terminal "G" should be energized whenever there is a call for
heating or cooling. Typically, a heat/cool thermostat designed for
use with electric heat systems will meetthe above requirements.
Honeywell Thermostat Terminal Designation:
TERMINAL LETTER OPERATION CONTACT MADE
Y Cooling During call for cooling.
W Heating During call forheating.
G Fan Continuous if the slider is inthe "Fan" position, otherwise, intermittent.
C Common Terminal Forthermostats requiring a common terminal
R 24 Vto the thermostat Directlyfrom the transformer
B (Heat Pump units Only) Reversing Valve Made continuously during call for heating.
For Non-Heat Pump equipped units: A single stage cooling and heating thermostat is required. Terminal "G" should be
energized whenever a call for heating or cooling is made. Typically a heat/cool thermostat designed for use with electric heat
systems will meet this requirement.
SimplifiedWiringExample
Unit Terminal Board
* A-Suffix models do not have a "C" terminal
0 @ _ v _ ® B 01
I
--T.plca,PTAO,PT.P..lti
[_ -- Wall thermostat
Thermostat Terminals
NOTE: It isthe installer'sresponsibilityto ensurethat all controlwiringconnectionsare made inaccordancewith the installationinstructions.
Improper connectionof the thermostat control wiring and/or tampering with the unit's internalwiring can void the equipment warranty and
may result in property damage,personalinjuryor death. Other manufacturer's PTACsand evenolder Fdedrich modelsmay have different
control wire connections. Questions concerning proper connectionsto the unit should be directedto thefactory.
17
Page 18
AppendixA(continued)
920-087-02(9-03)
Remote Thermostat 208V Operation
Connection208V60HZDiagram/
-t;t
SMOOTHG RIBBED
i z
I
I
COM
The simplified connection diagram at left shows the factory
configured wiring set for 240V operation. If you are going to use
208V exclusively, switch the two (2) blackwires on the 240V post
of the primary side of the transformer to the 208V post. This will
ensure correct secondary (low) voltages for the unit. This is only
required on remote thermostat units.
I
Auto Changeover Thermostat
A singlestage heat/coolthermostatwithauto changeoveris needed.
Thewiringscheme is the same asthe manualthermostat.
Remote Thermostat Installation
Follow Steps 1through 5 (pages 12and 13),then:
6. Locate the terminal strip on the front of the control box (See
Figure9). Attach thethermostatsubbasewires(field supplied)
tothe appropriately labeled terminals inaccordance with the
wiring diagram on the side of the chassis.
7. Carefullyroute thewiresalongside the conduitor servicecord.
Attach the otherend of the wires tothe appropriateterminals
on thethermostat subbase. Seethe thermostatdirections for
proper wiring and mounting of the thermostat.
Figure 10
TerminalStripLocation
CAUTION
If the supply voltage is 208V, the low
voltage transformer MUST be wired for
208V operation Failure to do so will result
in lower contro_ voltages to the unit and can
damage _ow voltage components
Remote Thermostat Unit Operation
Theseunitsare controlledbytheuseofa remotethermostatthatwill
cycletheunitto maintaindesired room temperature.Seethermostat
operating instruction sheet for details.
Thefanspeed switch controlshighandlowspeedfanoperation. Itis
located on the controlpanel and isindependent ofthe thermostat.
WALLMASTER _
REMOTE CONTROL UNIT
HI
SEE WALL
THERMOSTAT
FOR UNIT
OPERATION
LOW
Fan
Speed
-t-
18
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920-087-02(9-03)
AppendixB: ElectricalWiringfor 265 Volt Models
NOTE: Itis recommended that the PXSB subbase assembly, the PXCJ conduit kit and the PXDS disconnect switch be installed on all
hardwired units. If installing aflush-floor mounted unit, make provisions for allthe linevoltage power leads and conduitto be removedfor
ease of maintenance and service to the chassis.
Toinstall the line voltage power leads and conduit to the chassis, follow the instructions below.
1. Remove the four control box retaining screws (A) and open
the control box.
2. Punthechassis power lead wires (B) (locatedon the bottom-
right side of the control box) through the plastic bushing so
they are located inside the control box.
3. Remove the plastic bushing.
4. Route the linevoltage power leads through the hole where
theplasticbushing was located,andsecure itsconduit (usea
1/2" straightconduit connector,with the Iocknuton the inside
ofthe control box.)
Figure 11
LineVoltageConnections
5. Makethe appropriateelectricalconnections within thecontrol
box,thensecure the box onthe chassis. Detailed instructions
are included with the installation instructions for the conduit
kit (PXCJ).
6. Route the line voltage power conduit from the control
box straight down the right front to the bottom side of the
chassis. This will allowthe front cover to be installedwithout
interference with the electrical conduit.
Inside back of co_rol
panelcove_
SCOWS
Fuse holder
19
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920-087-02(9-03)
J.RoutineMaintenance
NOTE: Units are to be inspected and serviced by qualified service personnel only.
1. Clean the unitair intakefilter at leastevery 300 to 350 hours
of operation. Clean the filters with a mild detergent in warm
water and allowto dry thoroughly before reinstalling.
compressed air or vacuum. If using a pressure washer, be
careful not to bend the aluminium fin pack. Use a sweeping
up and down motion in the direction of the vertical aluminum
fin pack when pressure cleaning coils. Cover all electrical
2. The indoor coil (evaporatorcoil), the outdoor coil (condenser
coil) and base pan should be inspectedperiodically (yearly
or bi-yearly) andcleaned ofall debris (lint, dirt, leaves, paper,
etc.). Clean the coils and base pan with a soft brush and
componentstoprotectthem fromwateror spray.Allowthe unit
todry thoroughly,inspect allgasket materialfor deterioration
(replace as necessary), and then reinstall the chassis in the
sleeve.
NOTE: Do not use a caustic coil cleaning agent on coils or base pan. Use a biodegradable cleaning agent and degreaser.
Before reinstalling the chassis in the sleeve, inspect the
indoorblower housing, blower wheel, condenser fan blade,
and condenser shroud periodically (yearly or bi-yeafly) and
4,
Inspect the surrounding area (inside and outside) to ensure
that the units' clearances have not been compromised or
altered.
clean of all debris (lint, dirt, mold, fungus, etc.) Clean the
,
blower housingareaand blowerwheel with an antibacterial/
antifungal cleaner. Use a biodegradable cleaning agent and
degreaser on condenser fan and condenser shroud. Use
warm or cold water when rinsingthese items.Allow all items
to dry thoroughly before reinstallingthem.
Inspectthesleeveanddrainsystemperiodically(atleastyearly
or bi-yearly) and dean of allobstructions and debris. Clean
bothareaswith an antibacterial and antifungalcleaner. Rinse
both itemsthoroughly with water and ensure that the drain
outletsareoperatingcorrectly. Check the sealant aroundthe
sleeve and resealareas asneeded.
3. Periodically (at leastyearly or bi-yearly): inspectall control
6,
components, both electrical and mechanical, as well as the
power supply. Use proper testing instruments(voltmeter,
ohmmeter, ammeter, wattmeter, etc.) to perform electrical
Clean the front cover when needed. Use a mild detergent.
Washand rinsewith warmwater. Allowthemto drythoroughly
before reinstallingthem in the chassis.
tests. Usean air conditioning or refrigeration thermometerto
check room, outdoorand coil operating temperatures. Use a
slingpsychrometertomeasurewet bulbtemperatures indoors
and outdoors.
2O
Filters
Return Air
Grille
CondenserFanBlade
Condenser Gasket
\
Condenser Shroud
DischargeAir Grille IndoorBlower_
Wall Sleeve
8asepan
Control Panel
Evaporator Coil
Page 21
920-087-02(9-03)
K.BasicTroubleshootingTechniques
Beingfamiliarwith thesequence ofoperationonStandardControlled Operating Units or theoperation of the RemoteThermostat Controlled
Unitsis important, The following questions and answers may help to identify performance problems,
EnvironmentalEffects- CoolingMode
Is unit sized to room size area and heat load demand?
RoomWidthx Lengthx 3.5 (x-factor)equal a "guesstimate" ofthe
numberofBTU'srequiredfor the area. The numberofpeopleinthe
room, number of electricaldevices, solar gains, etc.are allvariable
itemsthatcanaffect propersizingoftheunit. Friedrichrecommends
that you consult with an applications engineer for proper sizing.
Is the outdoor temperature 60°F or below?
The unitis designed for outdoor temperatures above 60°E
Is the indoor temperature 80°F or above?
Ambient indoor temperatures of 80°F or above will take a longer
period of run time to cool down the area. Long run times may
indicate that the unit isundersized.
Is indoor humidity high?
This condition will cause the unit to operate longer to remove
humidity before noticing anycooling effect.
Hasthe heat loadbeen increased byadditional devices such
as computer equipment, or hasthe room area been increased
where the unit is located?
If conditions have changed, the unit may not be able to cool and
condition as effectively as previously planned.
Environmental Effects - Heating Mode
Is unit properly sized to room area and heat load demand?
Multiplying the Width x Length x 3.5 ("x-factor") provides a
"guesstimate" of the number of BTU's required for the area. The
number of people inthe room, number ofelectrical devices, solar
gains,etc. are all variable itemsthat can affect propersizingofthe
unit. Ffieddchrecommends that you consult with anapplications
engineer for proper sizing.
Is the outdoortemperature 70oForabove?- Theunitis designed
for outdoor temperatures below 70°E
Is the indoor temperature 60°F or below? Ambient indoor
temperatures of 6O°F or below will take a longer period of run
time to heat the area. Long run times may indicate that the unit is
undersized.
Hasthe roomarea been increased where the unit is located?
If the area where the unit is located has been increased, the unit
may not provideadequateheat.
Insufficient Maintenance and Inspection
Installationerrorsare themostcommon cause ofpoorperformance.
Pleasefollowinstallationinstructionscarefully.Ifotherproblemsexist,
see Maintenanceand InspectionTroubleshootingGuide below.
Maintenance and Inspection Troubleshooting Guide
CAUSE RESULT
System is not serviced or inspected Can result inpremature component failures, poor performance and
regularly (semiannuallyor annually), increased operating costs.
Air filters are not cleaned regularly and May result in poor cooling, icingand water problems as wellas
become blockedwith particles, component failures and increased operating costs.
Condenser coil not maintained properly Mayresult in poor cooling, component failures and increased costs.
(blocked with particles).
Evaporator coil notmaintained properly May result in poor cooling, icing and water problems, and increased
(blocked with particles), operating costs.
Components that show signs offatigue Mayresult in multiple service calls, poor performance and increased
- not replaced, operating costs.
Condensate drains and drain linesnot May result in water and odor problems.
maintained.
21
Page 22
FriedrichPTACAccessories
920-087-02 (9-03)
MODELNUMBER
PXWS
PXGA
PXAA
PXDB
PXSC
PXDR10
DESCRIPTION
WALL SLEEVE G-90 zinc coated steelisprepared in aneleven-
step process, thenelectrostaticanycoated withapolyesterfinish
and cured in anoven forexceptional durability. The wall sleeve
is insulated for thermal efficiency. 16" High x 42"Wide x 13¾"
Deep.
GRILLE, standard, stamped aluminium, anodized to resist
chalking and oxidation.
ARCHITECTURAL GRILLS that consist of heavy-gauge
6063-i5 aluminium alloy:
Clear, extruded aluminium or dark bronze acrylic enamel
Also available in custom colors.
CONDENSATE DRAIN KIT Attaches to the bottom of the wall
sleevefor internaldrainingofcondensateorto therearwall sleeve
fiangefor externaldraining. Recommendedon allunitsto remove
excess condensate. Packaged in quantitiesoften.
PHOTO
PXWS_ /
PXDB
PXDR1O
PXWE
PXSB
PXCJ
PXDC
DEEPWALL SLEEVE EXTENSION A four inch deep anodized
aluminiumextensionthatattachestotheoutsideofthewallsleeve
when the wall is greater than eleven inches thick (9½"when a
subbase is used, 10inches when a lateral duct is used).
DECORATIVESUBBASE Providesunitsupportforwansless
than six inches thick. Includes levelinglegs, side filler panels
and mounting brackets for electrical accessories. Accepts
circuitbreaker,power disconnect switch, or conduit kit.
CONDUIT KIT WITH JUNCTION BOX Hard wire conduit kit
with junction boxfor 208/230V and 256V units (subbase not
required). Kit includes a means ofquick disconnectfor easy
removal of the chassis. *Required for 265V installations.
DESK CONTROL KIT A field installed kit which allows the
unit to be turned on or off from a remote central station via
a 24V interface.
PXCJ
PXDC
DIGITAL REMOTE THERMOSTAT A Honeywell wall
RT2
22
mounted remote thermostat. Requires proper P-Series
chassis.
RT2
Page 23
920-087-02(9-03)
FriedrichPTACAccessories(continued)
MODEL NUMBER
PXSE
PXDA
PXDE
PXFT
DESCRIPTION
SLEEVE EXTENSION RETROFIT KIT G-90 zinc coated
steel, 2.4" sleeve extension attached to the room side of
the sleeve to allow for the installation of a P-Series Friedrich
PTACin a T-Series sleeve.
LATERAL DUCT ADAPTER Attaches to the PTAC/PTHP
unit and provides a transition to direct upto 35% of the total
CFM to a secondary room, eitherleft or right ofthe unit. Kit
includes duct plenum with discharge grilleand internal baffle,
adapter and end cap.
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 isfifteen feet.
REPLACEMENT FILTER PACK These are original
equipment return air filters. They are reusable and can be
cleaned by vacuuming, washing, or blowing out, and are sold
in convenient ten packs. (Two filters per chassis)
PHOTO
PXSE _ /
PXDA
[_]:r:T,-_'_ [o]',,;lll[o]_r[,-"]
DESIGNATOR DESCRIPTION
S STANDARD UNIT Standard PTAC/PTHP chassis. Can be 230/208V or 265V, electric or heat pump.
R REMOTE THERMOSTAT Chassis option necessary for wall mounted thermostat control of the unit.
SEACOAST PROTECTION AdditionalprotectionforPTAC/PTHPunitsina coastalorcorrosiveenvironment.
C The entireoutdoorcoil is submerged in a spedelly formulatedenamel coating,thenoven-cured for a tough,
corrosion-resistantfinish.
PXFT
23
Page 24
I
FRIEDRICHWALLMASTER®P-SERIESPACKAGEDTERMINALAIRCONDITIONERS[
Post Office Box 1540. San Antonio, Texas 78295-1540
SAVE THIS CERTIFICATE. Itgives you specific dghts, you may also have other rights which may vary from state to state and provinceto province.
Inthe event that your unit needs servicing, contact your nearest authorized service center. If you do not know the nearest service center, ask the company that installed
your unit or contact us - see address and telephone number below.
When requesting service: please have the model and _ from your unit readily available.
Unless specified otherwise herein, the following applies:
PACKAGED TERMINAL AIR CONDITIONERS AND HEAT PUMPS
LIMITED WARRANTY - FIRST YEAR (Eighteen (18) Months from the original date of purchase or twelve (12) months from installation). Any defect in the
unit's material or workmanshipwillbe repaired or replaced free of charge by our authorized service center duringthe normal working hours; and
LIMITED WARRANTY- SECOND THROUGH FIFTH YEAR (Sixty-six (66) months from the date of purchase) ON THE SEALED REFRIGERATION SYSTEM.
Any part of the sealed refrigeration system on the P-sedse that is defective in material or workmanship will be repaired or replaced free of charge (excluding freight
charges) by our authorized service center during normal working hours. The sealed refrigeration system consists of the compressor, metering device, evaporator,
condenser, reversing valve, check valve, and the interconnecting tubing.
These warranties apply only while the unit remains at the original site and only to units installed inside the continental United States, Alaska, Hawaii,
Puerto Rico and Canada. The warranty applies only if the unit is installed and operated in accordance with the printed instructions and in compliance
with applicable local installation and building codes and good trade practices.
For international warranty information, contact the Friedrich Air Conditioning Company - International Division.
Reasonable proofmust be presentedto establish the originalpurchasedate, otherwise the beginningdate ofthis certificatewillbe consideredto be our shipmentdate
plus sixtydays. Replacement parts can be new or remanufectured. Replacement partsand labor are only warranted for any unused portionof the unit'swarranty.
We will notbe responsible for and the user will payfor:
1. Service calls to:
A) Instruct on unit operation. B) Replace house fuses or correct house wiring. C) Clean or replace air filters. D) Remove
the unit from inaccessiblelocations. E) Correct improper installations.
2. Parts or labor providedby anyone other than an authorized service center.
3. Damage caused by:
A) Accident, abuse, negligence, misuse, dot, fire, flood, or acts of God. B) Operating the unit where there is acorrosive atmosphere containing chlorine,
fluorine, or any damaging chemicals (other than in a normal residential environment). C) Unauthorized alteration or repair of the unit, which in turn
affects its stability or performance. D) Failing to provide proper maintenance and service. E) Using other than a"Seacoast Protected" unit ina coastal
environment. F) Using an incorrect power source. G) Faulty installation or application of the unit.
We shall not be liable for any incidental, consequential, or special damages or expenses in connection with any use or failure ofthis unit. We have not
made and do not make any representation or warranty of fitness for a particular use or purpose and there is no implied condition of fitness for a particular
use or purpose. We make no expressed warranties except as stated in this certificate. No one is authorized to change this certificate or to create for us
any other obligation or liability in connection with this unit. Any implied warranties shall last for one year after the original purchase date. Some states
and provincesdo not allow limitations on how longan implied warranty or condition lasts, so the above limitations orexclusions may not apply to you. The provisions
of this warranty are in addition to and not a modification of or subtraction from the statutory warranties and other rights and remedies provided by law.
In case of any questions regarding the provisions of this warranty, the English version will govern.
LIMITEDWARRANTY
FRIEDRICH AIR CONDITIONING CO.
(210) 357-4400. FAX (210) 357-4480
Revised 8/01
I
Model No. Serial No.
Date Purchased: Installation Location:
Date Installed:
Printedinthe U,S.A, 920-087-02 (9-03)
Installed by:
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