Friedrich WallMaster PTAC User manual

920-087-02 (9-03)
WallMaster® PTAC
Packaged Terminal Air Conditioners & Heat Pumps
• Standard
• Remote Thermostat
• Seacoast Protected
Installation & Operation Manual

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Unit Components.........................................................................................................................................................................................2
P-Series Announcement/Model Number Code............................................................................................................................................3
Installation Recommendations....................................................................................................................................................................4
Drain Kit Installation................................................................................................................................................................................5-6
Wall Sleeve Installation............................................................................................................................................................................ 7-8
Deep Wall Installation..................................................................................................................................................................................9
Standard Grille Installation........................................................................................................................................................................10
Installation Checklist .................................................................................................................................................................................11
Electrical Rating Tables..............................................................................................................................................................................11
Chassis Installation ............................................................................................................................................................................. 12-13
Standard Unit Operations ..........................................................................................................................................................................14
Temperature Limiting Thermostat ..............................................................................................................................................................14
Heating Control (Heat Pumps & Emergency Heat)..................................................................................................................................... 15
Fan Cycle Switch....................................................................................................................................................................................... 15
Fresh Air Vent Control................................................................................................................................................................................ 15
Air Discharge Grille ....................................................................................................................................................................................16
Start-up Checklist......................................................................................................................................................................................16
Appendix A: Remote Thermostat Wiring ...............................................................................................................................................17-18
Appendix B: Electrical Wiring for 265 V Models........................................................................................................................................ 19
Routine Maintenance................................................................................................................................................................................ 20
Basic Troubleshooting Techniques .............................................................................................................................................................21
Accessories .........................................................................................................................................................................................22-23
Warranty ................................................................................................................................................................................................... 24
Table of Contents
Typical Unit Components
Front cover
Chassis
Wall sleeve
Outdoor grille

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Announcing the Friedrich P-Series Packaged Terminal Air Conditioner.
A new approach to reliability and efciency. A totally redesigned Friedrich PTAC.
Thank you for your decision to purchase the newly designed Friedrich Packaged Terminal Air Conditioner
(PTAC). We are condent that you will nd this unit a quiet and efcient 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 difcult but it is essential.
Model Number Code
P H 07 K 3 S A 1
Series
P = P series
System
X= Accessory
E= Cooling with or
without electric heat
H =Heat Pump with
Auxiliary Heat
Nominal Cooling Capacity
07 = 7,000 Btuh
09 = 9,000 Btuh
12 = 12,000 Btuh
15 = 15,000 Btuh
Engineering Digit
Design Series
Options
S = Standard
R = Remote Thermostat
C = Seacoast Protection
X = Remote Thermostat and
Seacoast Protection
Nominal Heater Size
(@ 230V or 265V)
0 = No Heater
2 = 2.5 KW
3 = 3.4 KW
5 = 5.0 KW
Voltage
K = 230/208V - 1 Ph. - 60 Hz.
R = 265V - 1 Ph. - 60 Hz.
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 Universal Mechanical Code current edition and applicable local
or national codes.

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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 condent 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 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.
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 oor 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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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 at
side of the mounting plate. (See Figure 4.) Insert the drain
tube through the hole in the gasket and mounting plate so
the tube ange 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. Use 1/2" I.D. copper tube, PVC pipe, or vinyl hose (obtained
locally) to connect the internal drain 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. Make certain that the four overow 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
eld supplied ashing, caulk as required. Be sure to caulk
around the ashing 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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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 large ange 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.
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. Place the drain tube through the gasket and the mounting
plate with the ange 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 ange on
the mounting plate is positioned at the bottom of the sleeve
facing toward the sleeve, Detail B. When the drain tube is
positioned at the desired angle, tighten the 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
overow 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 ange
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 (PXWS)
NOTE: Insure that the unit is only installed in a wall structurally adequate to support the unit including the sleeve, chassis and accessories.
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-side
and the front should be 1/4 bubble higher than the back. 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
42"
(107.3 cm) min.
50" (127 cm) min.
10"
(25.4 cm)
max.
16 "
(41.3 cm)
13
"
(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

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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 overow slots at the bottom ange of
the sleeve.
Lintel Installation
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. If the chassis and exterior grille are to be installed later, 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.)
13 "
(35 cm)
A
B
"
(6.4 cm)
min.
Wall
Dimensions
Figure 6
Dimension*
A
Allow
for wall
nishing
B
Allow for oor nishing
(Minimum) Min. Max
No Accessories "
(6.4 mm)*
"
(6.4 mm) ---
With Subbase 1"
(4.5 cm)
3"
(8.9cm)
5"
(12.7cm)
With Lateral Duct "
(1.9 cm)
"
(6.4 mm) ---
* If more than one accessory is to be used, use the maximum
dimension. If the wall thickness is more than 13" (35cm) -
(A + " [6.4 mm]), a sleeve extension must be used.

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If the wall is thicker than allowed in the notes in Figure 6, a sheet
metal wall sleeve extension and ashing 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 bafes must be mounted to properly direct air ow to and
from the condenser.
3. The wall sleeve extension design must allow for the proper
mounting of the grille.
4. Caulking is required at all sites where condensate or external
water could potentially inltrate into the building.
5. Fabricate and install metal ashing in wall to serve as a drip
panel. Refer to drawing for more information.
6. Condensate notches and overow slots must be kept clear
of sealant and gaskets so condensate can ow 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
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 wall sleeve and the wall sleeve extension.
Pay particular care in sealing and caulking the panel where it makes
contact with the wall sleeve (see Figure 8). After installation 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)
Wall Sleeve Extension Sealant Locations
IMPORTANT NOTE: The silicone bead MUST extend 3"
up the side of the two anges to prevent condensate
from leaking.
Wall Sleeve Extension, 42" X 16" Frame, 20 gauge minimum, painted or aluminium
Outside Edge
Insulation
Wall Sleeve
Air Bafes
Condensate
Notches (4)
Condensate
Drip Panel
(Field
Supplied)
Sealant inside (4) bottom corners
Drip
Edge
Width of Wall
Figure 8
PXWE Wall Sleeve
Extension

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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
two outside edge plastic grommets, and tighten them half way
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.
Figure 9
Description
Stamped Aluminum Grille
Plastic Grommets
#8 x 3/8" Sheet Metal Screws
Quantity
1
6
6
PXGA
Standard Grille
Figure 9
Wall sleeve
Weatherboard
Center support