Friedrich WY13, WY10, WS14, WS16, WE10 User Manual

Thru-the-wall

Air Conditioners and Heat Pumps

115-Volt: WS08, WS10, WS14
230-Volt: WS10, WS13, WS16, WE10, WE13, WE16, WY10, WY13

Installation and Operation Manual

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920-007-12 (7-07)

920-007-12

Table of Contents

Introduction

Economizing Tips ............................................................................................................................................................................................................................3

WS models

How to operate your Friedrich room air conditioner ....................................................................................................................................................................... 4

To start unit ....................................................................................................................................................................................................................................... 4

To set mode of operation .................................................................................................................................................................................................................. 4

To adjust temperature ...................................................................................................................................................................................................................... 5

To adjust fan speed........................................................................................................................................................................................................................... 5

To activate smart fan ........................................................................................................................................................................................................................ 5

To set hour clock ............................................................................................................................................................................................................................... 5

To set the timer .................................................................................................................................................................................................................................5

Automatic component protection ..................................................................................................................................................................................................... 5

How to use the remote control ......................................................................................................................................................................................................... 6

WE and WY models

Mode control .................................................................................................................................................................................................................................... 7

Temperature control ......................................................................................................................................................................................................................... 7

All models

How to clean the air fi lter ................................................................................................................................................................................................................. 8

How to change airfl ow direction ....................................................................................................................................................................................................... 8

How to cover inner weather panel holes .........................................................................................................................................................................................8

Electrical requirements .................................................................................................................................................................................................................... 8

Never use an extension cord ........................................................................................................................................................................................................... 8

Power cord information .................................................................................................................................................................................................................... 9

Troubleshooting tips and home maintenance ................................................................................................................................................................................ 10

Installation instructions for WSC sleeve

Mounting hardware .........................................................................................................................................................................................................................11

Wall preparation ..............................................................................................................................................................................................................................11

Installation requirements ................................................................................................................................................................................................................ 12

Sleeve installation ........................................................................................................................................................................................................................... 12

WallMaster chassis installation instructions: WS, WE and WY models

Installation ....................................................................................................................................................................................................................................... 13

Condensate removal ...................................................................................................................................................................................................................... 16

Alternate drain kits .......................................................................................................................................................................................................................... 16

Warranty ..........................................................................................................................................................................................................................................17

Warranty registration record .......................................................................................................................................................................................................... 18

2

920-007-12

WELCOME to years of economical comfort

Your new Friedrich Room Air Conditioner has been carefully
engineered and man u fac tured to give you many years of de pend able,
effi cient operation, keeping your room at a comfortable temperature
and hu mid i ty level. Many extra fea tures have been built into your
Friedrich Room Air Conditioner to assure quiet operation, greatest
circulation of cool, dr y air, most fl exible selection of function controls,
and high economy of operation.

There are many things you can do in and around your home to save
more money - and even increase the effi ciency and long life of your
Friedrich unit. Here are a few examples:

1. How to Set Thermostat: When you fi rst turn on your air

conditioner, select the highest fan speed and set the ther mo stat
to its coldest position to cool the room. When the desired
tem per a ture is reached, turn the ther mo stat control toward
"warmer" until the c ompressor goes off. The thermostat
will then cause the compressor to go on and off to maintain
this selected temperature. You can adjust the fan speed for
optimum air circulation.

2. Do not block the fl ow of air to and from the unit - make sure the

louvers are directed to give even dis tri bu tion of air throughout
the room. Caution: If air is obstructed and/or defl ected back
into the air conditioner, this may cause the unit to cycle on and
off rapidly, which could damage your unit.

3. Adequate insulation - walls, ceilings, and below fl oors - can save

up to 50% of the cost of cooling in most areas of the country.

4. Caulking: in well insulated homes, air leaks around doors,

windows, lighting and plumbing fi x tures can account for as
much as 30% of the load on heating and cooling systems. See
that all these areas are well caulked.

5. Install weather stripping (metal is preferable to felt) around
exterior doors and windows.

6. Have a fi replace? Be sure the damper is closed during air
conditioner operation.

7. When it’s time to reroof or repaint the outside of your home,
choose light colors. They refl ect heat instead of absorbing it.

8. Shade your outside walls (especially on the west) from the direct
sun; most importantly, shade the unit itself Trees and shrubs
provide natural shading, but make sure they don’t block the air
fl ow around the unit. If natural shade isn’t present, awnings are
the best solution for shading the unit and the windows. Also,
avoid areas where too much dust or pollen would be drawn
into the air conditioner.

9. Inside the house, use blinds, screens, or drapes on windows
exposed to the sun. They will reduce your cooling needs.
(Lined or insulated draperies will also help cut heating costs
in winter).

10. Make sure your attic area is properly vented. In addition,
consider installing turbine or power ven ti la tors to help remove
hot air from your attic.

11. Keep your Friedrich unit clean. Use a vacuum cleaner
attachment for accessible parts, but take care not to damage
them. Clean the reusable fi lter at least twice a month.

12. Set the thermostat at a higher temperature - save 5% in energy
usage for each degree of temperature over 72°F.

These are the most important suggestions for saving money on
cooling costs. Some, however, may not be ap pli ca ble to your house
or area. Check with your local utility company for more specialized
information.

3

WS mod els

920-007-12

72

Model Plug Type

WS08, WS10, WS14 NEMA No. 5-15P 125V-15 AMP

WS10, WS13, WS16 NEMA No. 6-15P 250V-15 AMP

Figure 1

How to operate your Friedrich room air con di tion er

Figure 2

PM

Circuit Rating, Breaker

or Time Delay Fuse

72

2 3 4

Fan

Timer

Mode

Hour

9

8

13

10 11 12

Speed

On/Off

To start unit

If your air conditioner is installed and plugged into a proper re cep ta cle,
it is ready to go. The fi rst time the unit is started, the compressor will
delay for three minutes. See Automatic Component Protection on the
following page.

1

Touch the Power button once. The unit will automatically be in
Cool mode with the temperature set at 75

°

F (24°C) and the fan

speed at F1, the sleep setting.

To set mode of operation

When you fi rst turn the unit on, it will be in the Cool mode (light on)

with constant fan.

4

Set

Cool

Money Saver

Fan On ly

Clock

Start Time

Stop Time

®

Power

Temp/Hour

1

6

7

5

2

Touch the Mode button once to activate the MoneySaver

(light on).

®

MoneySaver

is a feature that cycles the fan with the

com pres sor so that the fan does not run all the time. This saves
energy and improves de hu mid i fi ca tion. MoneySaver

®

will also
run to test the temperature if the off cycle is too long. Or you
may prefer con stant fan for more air move ment. (To return to

constant fan, touch the Mode button two more times).

In order to run the fan by itself, do the following:

3

Continuing from MoneySaver

®

mo de (light on), tou ch the Mode

button once to activate the Fan Only feature (light on).

The Fan Only setting will circulate air in the room without the

compressor coming on.

®

920-007-12

To adjust temperature

4

Use the Mode button to select either the Cool or MoneySaver

function

5

COOLER – Touch the button to lower the room air

temperature.

6

WARMER – Touch the button to raise the room air

temperature.

7

Press both the and buttons at the same time to switch

the temperature from Fahrenheit (°F) to Celsius (°C). Repeat
Step 7 to switch from °C back to °F.

To adjust fan speed

8

Touch the Fan Speed button to see the current setting. Touch

it again to change speed. F1 is the lowest setting (SLEEP
SETTING / LOW), F2 is MEDIUM, and F3 is HIGH.

To activate Smart Fan

9

There is a fourth option, SF, when selecting the fan speed. This is

the SMART FAN function. SMART FAN DOES NOT OPERATE
IN CONJUNCTION WITH THE FAN ONLY MODE.

Smart Fan will adjust the fan speed automatically to maintain

the desired comfort level. For example, if the outside doors
in your home are opened for an extended period of time, or
more people enter a room, Smart Fan may adjust to a higher
fan speed to compensate for the increased heat load. This
keeps you from having to adjust the fan speed on your own.

To set the hour clock

To set the timer

®

NOTE: Set the HOUR CLOCK (Set Hour) before attempting to set

timer functions.

You can set the Start Time and Stop Time a minimum of one hour

apart, and a maximum of 23 hours apart.

11

After setting the time, press the Set Hour button once (Start

light on). Use the and buttons to select the time that the

unit will START.

12

After selecting the Start Time, press the Set Hour button once.

(Stop Light on). Use the and

that the unit will STOP. After selecting the stopping time, press
the Set Hour button once.

13

Press the Timer On/Off button (light turns on) to activate the

timer function. To deactivate this function, press the Timer
On/Off button once again (light turns off). Once the on and off

times have been selected, they will remain in memory and cycle
daily until changed.

NOTE: If the unit is unplugged or the power is interrupted, the HOUR
must be reset or the Timer On/Off will not function when desired.

buttons to select the time

Automatic component protection

Your unit is equipped with Automatic Component Protection.

To protect the compressor of the unit, there is a three minute delay
if you turn the unit off or if power is interrupted. The fan will not be

affected. Also, if you switch from Cool mode to Fan Only mode, and
switch back to Cool mode, there is a three-minute delay before the

compressor comes back on.

10

Touch the Set Hour button to see the current setting. The

number that is displayed is the approximate time (hour only).
Use the and buttons to change the settings. BE SURE
TO SET A.M. AND P.M. ACCORDINGLY. (P.M. is indicated by
a red light in the upper left corner of the display).

5

How to use the remote control

920-007-12

To start unit

1

POWER - Press the Power button once. The unit will automatically

start in the mode and fan speed it was last left on.

To set mode of operation

2

COOL - Press the Cool button to automatically switch the operat-

ing mode to COOL.

3

FAN ONLY - Press the Fan O nly button if you want to run the

fan only.

4

MoneySaver

®

- Press the Money Saver

®

button to activate
the MoneySaver® feature. This feature cycles the fan with the
compressor so that the fan does not run all the time.

To adjust temperature

5

WARMER - Press the Warmer button to raise the temperature

setting.

6

COOLER - Press the Cooler button to lower the temperature

setting.

To adjust fan speed

To set the timer

NOTE: You can set the START and STOP times a minimum of one
hour apart, and a maximum of 23 hours apart.

9

TIMER START - Press Start to view the current start time for

cooling. Continue pressing the START button until you arrive at
the start time you desire. The start time for cooling will then be
set.

10

TIMER STOP - Press the Stop button. Continue pressing the

STOP button until you arrive at the stop time you desire. The
stop time for cooling will then be set.

11

TIMER ON / OFF - Press the On/Off button (under Timer
Operation) to activate (light on) or deactivate (light off) the timer.

Once the on and off times have been selected, they will remain
in memory and cycle daily until changed.

NOTE: If the unit is unplugged or the power is interrupted, the Set Hr.
function must be reset or the Timer On/Off function will not work.

Figure 3

7

FAN S P E ED - Press the Fan Sp eed button to see the current

setting. Press again to change the fan speed. F1 is the lowest
setting (SLEEP / LOW), F2 is MEDIUM, F3 is HIGH, and SF is
the SMART FAN setting.

To set the hour clock

8

SET HOUR CLOCK - Press the Set Hr. button once to see the

current clock setting. Continue pressing the button until you
arrive at the current time (Hour only). Minutes are not shown on
the display. Make sure that the A.M. / P.M. setting is correct.

Temperature

Cooler

Warmer

2

11

9

Cool

Fan

Only Speed Saver

Timer Operation

On/Off

Start

Power

Money

Fan

®

Set Hr.

Stop

56

1

43

7

8

10

Additional RC1 wireless remote controls can be
purchased from your Friedrich dealer.

6

WE and WY models

MAX

MAX

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920-007-12

Fan
Only

Low
Heat

Med
Heat

High
Heat

Allow 3 min. between restarts

!

Figure 4

Off

Low
Cool

Med
Cool

High
Cool

HEAT

COOL

Model Plug Type

Circuit Rating, Breaker

or Time Delay Fuse

WE10, WE13, WE16, WY10, WY13 NEMA No. 6-20P 250V-20 AMP

Mode control

Turn the knob clockwise to High Heat for heating with highest fan
speed. Set to Med Heat for heating with medium fan speed. Turn to

Temperature control

This knob controls the thermostat – turn clockwise to set a cooler
temperature, coun ter clock wise to make it warmer.

Low Heat for heating with the lowest fan speed. Models designated

"WE" only use electric heating elements. Heat Pumps (WY models),

use the compressor for heating, au to mat i cal ly switching to electric
heating el e ments only when the outside temperature reaches 43°F.

Turn the knob counterclockwise to Fan Only for medium speed
without cooling or heating. Turn to High Cool for cooling with the

highest fan speed. Turn to Med Cool for cooling with medium fan
speed. Set to Low Cool for cooling with the lowest fan speed. Turn
the knob in either direction to Off to turn the unit completely off.

NOTE: The fan will cycle with the compressor or the heating element

and will not run constantly when in the heating mode.

7

920-007-12

How to clean the air filter

Your Friedrich room air conditioner is equipped with a Permafoam

reusable air fi lter which is not affected by washing. The fi lter serves

to remove dust, pollen, and other impurities from the air.

KEEP THE FILTER CLEAN - A clogged, dir ty fi lter will reduce the

operating effi ciency of your unit and contribute to frosting of the
indoor coil. Be sure to check the fi lter every 7 to 10 days. The fi lter
check procedure is easy, due to the unique design of the Friedrich
DECORATIVE FRONT.

FILTER ACCESS - Remove the INTAKE GRILLE from the

DECORATIVE FRONT frame by grasping it at the upper right and

lef t side corners. Pull out until the GRILLE is releas ed from the upper

retaining snaps. Tilt down toward you, lift up and out of the bottom
retaining snaps. This will expose the fi lter. Remove the fi lter by pulling
it tow ar d you. Wash the fi lter in hot, soapy water, rinse, squeeze lightly
to remove excess water, shake dry - do not twist - and replace in the

unit on the two support hangers. Replace the INTAKE GRILLE by
positioning the bottom of the GRILLE into the bottom retaining snaps.
Tilt the front up and away from you. Press in lightly on top and the
GRILLE will position itself into the upper retaining snaps.

Figure 5

How to change airflow direction (Figure 6)

The DISCHARGE GRILLE is installed at the factory to provide 45˚

upward airfl ow into the room. (Direction 1 in Figure 6). If a vertical
airfl ow is desired (Direction 2), the direction can be changed by rotating
the DISCHARGE GRILLE.

Unplug the air conditioner.

Remove the DISCHARGE GRILLE RETAINER attached with one
screw in the right side of the grille.

Remove the DISCHARGE GRILLE from the retaining slots near the
CONTROLS, and rotate the grille as shown in Figure 6.

Reinstall the DISCHARGE GRILLE by placing it in its retaining slots.
Reattach the DIS CHARGE GRILLE RE TAIN ER with the retaining
screw. The unit is now ready to operate.

How to cover inner weather panel holes

Two beige plugs are included in the plastic bag taped to the WallMaster
chassis. These plugs may be used to cover the two holes left after

removing the inner weather panel (see Figure 6). The plugs must be
attached before the DECOR ATIVE FRONT frame is installed.

Electrical requirements

IMPORTANT: Before you begin the actual installation of your air

conditioner, check local elec tri cal codes and the information below.

Your air conditioner must be connected to a power supply with the same
AC voltage and hertz rating as marked on the nameplate located on
the chassis. Only alternating current (AC) can be used. Consult pages
3 and 7 for the correct type of receptacle for your model.

air conditioner, therefore, it is extremely im por tant that the electrical

power and the wiring is adequate. Consult your dealer or power

company if in doubt.

CIRCUIT PROTECTION - Before installing or relocating your

Friedrich Room Air Conditioner, check the amp rating of the circuit

breaker or "TIME-DELAY" fuse. Refer to the nameplate located on

the air conditioner chassis to de ter mine the correct fuse or circuit

breaker am per age for your model. The rating MUST NOT exceed
the value stated on the nameplate. If the air conditioner is connected
to a circuit protected by a fuse, a "TIME-DELAY" fuse must be

used due to the momentary high current demands when your air
conditioner is started.

Never use an extension cord

Your Friedrich room air conditioner is equipped with a three-prong
(grounded) plug for your protection against shock hazards and should

be plugged directly into a properly grounded three-prong receptacle.
If you have a two-prong receptacle you will need to have the circuit

replaced by a certifi ed electrician with a grounded circuit that meets
all national and local codes and ordinances. Under no circumstances
should you remove the ground prong from the plug. You must use the
three-prong plug furnished with the air conditioner.

NEVER CUT OR RE MOVE THE GROUNDING PRONG FROM
THE PLUG.

Power cord information

An overloaded circuit will invariably cause malfunction or failure of an

8

A

2

Airflow

Decorative
Front

Rotate

2

920-007-12

1" Diameter Plug

WSC

Figure 6

Sleeve

2

1

1

1

Discharge
Grille

Return

ir Grille

All Friedrich room air conditioners are shipped from the factory with
a Leakage Current Detection Interrupter (LCDI) equipped power
cord. The LCDI device meets the UL and NEC requirements for cord
connected air conditioners effective August 2004.

To test your power supply cord:

1. Plug power supply cord into a grounded 3 prong outlet.

2. Press RESET (See Figure 7).

3. Press TEST (listen for click; Reset button trips and pops out).

4. Press and release RESET (listen for click; Reset button

latches and remains in). The power supply cord is ready for

operation.

NOTE: LCDI device is not intended to be used as a switch.

567

AB123456C3

S07A10B

MODEL# W

NOTE: Your LCDI device will resemble one of these illustrations.

RESET

TEST

RESET

WARNING

TEST BEFORE EACH USE

1. PRESS RESET BUTTON

2. PLUG LDCI INTO POWER
RECEPTACLE

3. PRESS TEST BUTTON,
RESET BUTTON SHOULD
POP UP

4. PRESS TEST BUTTON,
FOR USE

NOT USE IF ABOVE TEST

DO
FAILS

WHEN GREEN LIGHT IS ON
IT IS WORKING PROPERLY

TEST

Once plugged in the unit will operate normally without the need to

reset the LCDI device.

If the device fails to trip when tested or if the power supply cord

is damaged it must be replaced with a new supply cord from the
manufacturer. We recommend you contact our Technical Assistance

Figure 7

Line at [phone] ext. 662. To expedite service, please have
your model and serial number available.

9

920-007-12

Troubleshooting tips and home maintenance

Won’t cool

If the unit operates, but won’t cool, determine if the controls are

properly set. Wait three minutes before setting the ther mo stat to a

cooler position in order to check control settings. Check the fi lter and
clean it thoroughly, if needed. Check to see if the vent door is closed.
Check to see if the chassis seal gasket is properly installed (refer to
page 14 for seal gasket installation).

Won’t heat (for heat/cool models only)

If the unit operates, but won’t heat, determine if the control settings are
correct. Adjust the ther mo stat to a warmer position to determine if it
operates. Also, check the fi lter and clean it thor ough ly, if needed.

Odors in heating (for heat/cool models only)

You may notice a smoke odor the fi rst time the heater element comes
on. This is common in any type of heat system when fi rst turned on

for the winter. The odor comes from dust and other particles that

accumulate during the warm months. The odor will dissipate quickly.

Won’t run

If the unit fails to operate, check to see if the power cord is fi rmly

plugged in. Check for blown fuses, tripped circuit breakers or a

tripped LCDI Device (Refer to LCDI reset instructions in the Power
cord information section). Restore the circuit breaker or replace the

blown fuse with a proper size "TIME-DELAY" fuse. The proper fuse
size is shown on pages 4 and 7 in these instructions. Af ter restoring
the current supply to the unit, wait three minutes before restar ting.

Frosting of the indoor coil

Certain operating conditions may produce indoor coil frost. During
the cooling operation, a dir ty fi lter or restricted air distribution in
combination with cool, damp weather could cause such an occurrence.
Should the indoor coil frost over while cooling, set the control to FAN
and keep it running until the frost on the coil is gone. Setting the
ther mo stat to a slightly warmer position will probably keep the coil

from frosting over again.

Cleaning the decorative front

The decorative front of your Friedrich room air conditioner, as well
as the complete cabinet, may be cleaned with warm water and mild
detergent. Under adverse operating con di tions, the indoor and outdoor
coils and base pan may require periodic cleaning to maintain ef fi cient
operation. Your Friedrich dealer should be called when this service

is required.

Things to know about a WallMaster heat pump

During the heat pump operation, you may notice some functions that did not occur when the unit was used for cooling:

1. It is common for ice to form on the outdoor coil of your WallMaster Heat Pump. The ice forms due to moisture in the outdoor
air passing over cold (below freezing) coil surfaces.

2. When th e outdoor coil for ms ice, your heat pump will automatically initiate a defrost. The com pres sor will stop and the fan will
continue to run. The electric heat will be turned on to continue warming the room while the outdoor air defrosts the outdoor
coil. After the defrost is completed, the unit will automatically return to the heat pump mode.

3. It is normal for vapor (steam) to rise from the outdoor coil during the defrost. This is similar to expelling warm breath on a
cold morning.

4. If the outdoor temperature drops below 43°F during heat pump op er a tion, your WallMaster Heat Pump will au to mat i cal ly
switch to electric re sis tance heat and will continue to operate in this mode as long as the outdoor tem per a ture remains at

43°F or below.

10

920-007-12

Installation instructions for WSC sleeve

Mounting hardware provided

ITEM NO. DESCRIPTION QTY.

1 SCREW, #12A x 2" 5

Wall preparation

STEP 1 The wall opening required for a WSC SLEEVE is 17 ¼"

high by 27 ¼" wide.

STEP 2 LINTELS must be used in opening of brick veneer and

masonry walls to support the material above the WSC
SLEEVE. The following considerations should also be given:

Minimum Of 24" Required

From Top Of Unit To Ceiling.

Inside Wall

Minimum Of 1" Spacing

Required On All Sides

Of The Unit.

1" Minimum
3 ½" For Subbase

⅞" Minimum Beyond Inside

Wall

Lintels

WSC Sleeve

Drain
Extension

9

⁄16" Minimum

Beyond Outside
Wall

Outside Wall

Figure 8

11

Installation requirements

920-007-12

STEP 1 The WSC SLEEVE should be positioned so that the

9

⁄

DRAIN EXTENSION extends a minimum of

" beyond

16

the OUTSIDE WALL (See Figure 8).

STEP 2 The WSC SLEEVE must extend a minimum of ⅞" beyond

the INSIDE WALL.

STEP 3 The WSC SLEEVE must be installed level side to side.

STEP 4 The WSC SLEEVE must also be installed with a downward

tilt toward the outside of the building. If a level is placed
so that it rests on the FRONT and BACK UNIT REST as
shown in Figure 9, a properly installed unit provides a ½
bubble slope to the outside of the building.

CAUTION: SLEEVE projections and leveling precautions

must be observed to prevent the entry of water into the room.

Figure 9

Raised Ledge

Level

Front Unit Rest

Sleeve installation

STEP 1 After unpacking the WSC SLEEVE from the carton, remove

the corrugated FRONT PANEL. Place the WSC SLEEVE
in the wall opening following the instructions given in the
INSTALLATION REQUIREMENTS. Attach the SLEEVE to
the INSIDE WALL by driving two #12A x 2" screws in each
side of the SLE EVE (see Figure 8). Shim at the top of the
SLEEVE, midway between the sides. Drive one #12A x 2"
screw in the top of the sleeve, close to the shim. Install
screws from inside the SLEEVE. If the wall opening is not
framed with wood, use expansion anchor bolts or molly
(toggle) bolts (not provided).

Back Unit Rest

STEP 2 Once the SLEEVE has been installed, check the LEVEL

again to be sure the ½ bubble downward tilt is maintained.
Apply shims, if required, to maintain the proper slope.

STEP 3 Caulk the perimeter of the entire opening on the inside and

the outside between the SLEEVE and the WALL.

STEP 4 The corrugated front panel removed in Step 1 above must

be remounted back in place if masonry work is to be done
and/or if the "WallMaster" CHASSIS is to be installed at a
later date.

12

These instructions are provided for installation of WallMaster air
conditioner chassis models into thru-the-wall sleeves. This chassis

has been UL approved with the sleeve listed on the serial nameplate
of this chassis. Important warranty information is provided on pages
17 and 18. Keep these instructions in a convenient location for any
warranty service that may be required.

STEP 1 Check the sleeve to be cer tain it has been correctly installed

in the wall. Remove the corrugated front panel on the WSC
SLEEVE. Remove the rear WEATHER PANEL. Reverse
grille. Place lower edge into sleeve tab (Friedrich logo facing
out). Align slots with screw holes. Secure grille with screws.

A. Check the anchor screws. There should be four

(4) in the WSC SLEEVE (two in each side).

B. Determine if the sleeve has a downward slope,

to the outside, of ½ bubble on a level. See
page 10 for further details.

920-007-12

C. Check to be sure the sleeve has been sealed

around all edges with an industrial type
caulk ing on both the outside and in side to
prevent rain entry.

Figure 10

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920-007-12

WallMaster chassis installation instructions for WS, WE and WY models
(WSC-B sleeve)

These instructions are provided for installation of WallMaster air
conditioner chassis models into thru-the-wall sleeves. This chassis

has been UL approved with the sleeve listed on the serial nameplate
of this chassis. Important warranty information is provided on pages
17 and 18. Keep these instructions in a convenient location for any
warranty service that may be required.

STEP 1 Check the sleeve to be cer tain it has been correctly installed

in the wall. Remove the corrugated front panel on the WSC
SLEEVE. Remove the rear WEATHER PANEL. Place lower
edge into sleeve tab (Friedrich logo facing out). Align slots
with screw holes. Secure grille with screws.

A. Check the anchor screws. There should be four

(4) in the WSC SLEEVE (two in each side).

B. Determine if the sleeve has a downward slope,

to the outside, of ½ bubble on a level. See
page 10 for further details.

C. Check to be sure the sleeve has been sealed

around all edges with an industrial type
caulk ing on both the outside and in side to
prevent rain entry.

STEP 2 Check the electrical receptacle to see that it conforms to

the requirements for the chassis model to be in stalled.
See pages 2 and 5, for the re cep ta cle requirements.

STEP 3 The decorative front is packaged in a separate box inside

the chassis shipping carton, be tween the chassis and
the carton. Remove this box and set the box aside until
later.

STEP 4 With the help of an assistant, remove the chassis from

the shipping carton. Be careful not to allow anything to
impact against the hairpins as this may result in dam age
to them. With the help of an assistant, lif t the chassis by
the basepan and slide it into the sleeve until it contacts
the rear grille. With the chassis in proper position, the
front edge of the basepan must extend out 4 ¾ inches
from the front (side) edge of sleeve.

Rear weather panel

Figure 11

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920-007-12

STEP 5 CHASSIS SEAL GASKET INSTALLATION: After

installing the shell, slide the chassis into the shell stopping
approximately 3" from full insertion. Stuff the chassis seal
gasket one inch deep between the chassis and the shell
(s ee Fig ure 12) . Make sure th e g asket is inst al le d be ginning
from the lower right side corner and extending over the
top and down to the lower left side corner. Then push the
chassis all the way into the shell for the remaining distance
so that the plastic front meets the front edge of the shell.

If chassis seal gasket is not installed, the operation of the

unit will be negatively affected. Also, the operation noise
and outside noise will be amplifi ed.

Chassis Seal

Gasket

Decorative Front

STEP 6 Remove the intake grille from the decorative front frame by

grasping it at the upper right and left side corners. Pull out
until the grille is released from the upper retaining snaps.

Tilt it down toward you, lift up and out of the bottom retaining

snaps. Install the decorative front frame in place over the
sleeve opening and attach it to the chassis with four sheet
metal screws as shown in Figure 12. Replace the intake
grille by positioning the bottom of the grille into the bottom
retaining snaps. Tilt the front up and away from you. Press
in lightly on top, and the grille will position itself into upper
retaining snaps.

Figure 12

AB123456C3567

MODEL# WS07A10B

Screws (4)

Return Air

Grille

Attach the frame to the chassis by in stall ing four (4) 8A-5/8" screws through the slots in the frame and into the holes in the chassis.

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920-007-12

Condensate removal (WS, WE and WY models)

If you desire to drain condensate from the basepan during unit
operation, this unit is provided with a drain nipple that can be
attached to the basepan. You must provide a 3/8" outside diameter
thin-wall plastic or copper tube which will attach to the drain nipple.
Follow the instructions below:

STEP 1 Find the drain plate on the rear of the basepan and

remove it. (See Figure 13).

Drain hose

STEP 2 Remove the knockout in the lower right side of the rear

grille. Slide the chassis into the WSC SLEEVE so that
the drain nipple extends through the knockout.

STEP 3 Slide the tubing inside the drain nipple.

If the chassis must be removed from the sleeve for service, remove
the clamped drain hose before sliding the chassis out of the sleeve.

Figure 13

Drain nipple

Basepan

Alternate drain kits

DK (Drain Kit)

In the event that the outdoor temperature drops below 37°F, any water
that re mains in the chas sis basepan is drained into the sleeve pan on
WE and WY models to prevent freezing. (NOTE: In the cooling mode
of the WS, WE and WY models, condensate over fl ow is possible in
very humid climates). For these particular in stanc es, an op tion al drain
kit (Ac ces so ry #DK) is available for water removal.

Sleeve

IDK (Interior Drain Kit)

New construction allowing for condensate drain systems built within
the walls can use the Friedrich Interior Drain Kit (Accessory #IDK)
designed for installation in the bottom of the sleeve below the
condensate bellows valve (heat/cool models only).

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£

Friedrich Air Conditioning Company

P.O. Box 1540

San Antonio, TX 78295

210.357.4400

www.friedrich.com

WALLMASTER

THRU-THE-WALL AIR CONDITIONERS

LIMITED WARRANTY

FIRST YEAR

ANY PART: If any part supplied by FRIEDRICH fails because of a defect in workmanship or material within twelve months from

date of original purchase, FRIEDRICH will repair the product at no charge, provided room air conditioner is reasonably accessible
for service. Any additional labor cost for removing inaccessible units and/or charges for mileage related to travel by a Service
Agency that exceeds 25 miles one way will be the responsibility of the owner. This remedy is expressly agreed to be the exclusive
remedy within twelve months from the date of the original purchase.

SECOND THROUGH FIFTH YEAR

SEALED REFRIGERANT SYSTEM: If the Sealed Refrigeration System (defined for this purpose as the compressor, condenser

coil, evaporator coil, reversing valve, check valve, capillary, filter drier, and all interconnecting tubing) supplied by FRIEDRICH in
your Room Air Conditioner fails because of a defect in workmanship or material within sixty months from date of purchase,

FRIEDRICH will pay a labor allowance and parts necessary to repair the Sealed Refrigeration System; PROVIDED FRIEDRICH will

not pay the cost of diagnosis of the problem, removal, freight charges, and transportation of the air conditioner to and from the
Service Agency, and the reinstallation charges associated with repair of the Sealed Refrigeration System. All such cost will be the
sole responsibility of the owner. This remedy is expressly agreed to be the exclusive remedy within sixty months from the date of the
original purchase.

APPLICABILITY AND LIMITATIONS: This warranty is applicable only to units retained within the Fifty States of the U.S.A., District

of Columbia, and Canada. This warranty is not applicable to:

1. Air filters or fuses.

2. Products on which the model and serial numbers have been removed.

3. Products which have defects or damage which results from improper installation, wiring, electrical current

OBTAINING WARRANTY PERFORMANCE: Service will be provided by the FRIEDRICH Authorized Dealer or Service

Organization in your area. They are listed in the Yellow Pages. If assistance is required in obtaining warranty performance, write

to: Room Air Conditioner Service Manager, Friedrich Air Conditioning Co., P.O. Box 1540, San Antonio, TX 78295-1540.

LIMITATIONS: THIS WARRANTY IS GIVEN IN LIEU OF ALL OTHER WARRANTIES. Anything in the warranty

notwithstanding, ANY IMPLIED WARRANTIES OF FITNESS FOR PARTICULAR PURPOSE AND/OR MERCHANTABILITY

SHALL BE LIMITED TO THE DURATION OF THIS EXPRESS WARRANTY. MANUFACTURER EXPRESSLY DISCLAIMS AND

EXCLUDES ANY LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGE FOR BREACH OF ANY EXPRESSED OR

IMPLIED WARRANTY.

NOTE: Some states do not allow limitations on how long an implied warranty lasts, or do not allow the limitation or exclusion of

consequential or incidental damages, so the foregoing exclusions and limitations may not apply to you.

OTHER: This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

PROOF OF PURCHASE: Owner must provide proof of purchase in order to receive any warranty related services.

All service calls for explaining the operation of this product will be the sole responsibility of the consumer.

All warranty service must be provided by an Authorized FRIEDRICH Service Agency, unless authorized by FRIEDRICH prior to

repairs being made.

characteristics, or maintenance; or caused by accident, misuse or abuse, fire, flood, alterations and/or misapplication
of the product and/or units installed in a corrosive atmosphere, default or delay in performance caused by war,
government restrictions or restraints, strikes, material shortages beyond the control of FRIEDRICH, or acts of God.

(10-04)

17