Friedrich Air Conditioner WE15 User Manual

Thru-the-wall  
Air Conditioners and Heat Pumps  
115-Volt: WS08, WS10, WS12  
230-Volt: WS10, WS13, WS15, WE10, WE13, WE15, WY09, WY12  
ster  
WallMa  
920-007-16 (5-10)  
WELCOME to years of economical comfort  
These are some suggestions for saving money on cooling costs.  
Some, however, may not be applicable to your house or area. Check  
with your local utility company for more especialized information.  
Your new Friedrich Room Air Conditioner has been carefully  
engineered and manufactured to give you many years of dependable,  
cient operation, keeping your room at a comfortable temperature  
efi  
and humidity level. Many extra features have been built into your  
Friedrich Room Air Conditioner to assure quiet operation, greatest  
circulation of cool, dry air, most flexible selection of function controls,  
and high economy of operation.  
Electrical Data  
CircuitRating,  
BreakerorTime  
DelayFuse  
Model  
PlugType  
There are many things you can do in and around your home to save  
more money - and even increase the eficiency and long life of your  
Friedrich unit. Here are a few examples:  
WS08, WS10, WS12  
WS10, WS13, WS15  
NEMA No. 5-15P 125 V-15 AMP  
NEMA No. 6-15P 250 -15AMP  
V
1. Do not block the flow of air to and from the unit - make sure the  
louvers are directed to give even distribution of air throughout  
the room. Caution: If air is obstructed and/or deflected back  
into the air conditioner, this may cause the unit to cycle on and  
off rapidly, which could damage your unit.  
WE10, WE13, WE15,  
WY09, WY12  
NEMA No. 6-20P 250V-20 AMP  
WARNING  
Electrical Shock Hazard  
2. Adequateinsulation-walls, ceilings, andbelow floors-cansave  
up to 50% of the cost of cooling in most areas of the country.  
Make sure your electrical receptacle has the same  
configuration as your air conditioner’s plug. If  
different, consult a Licensed Electrician.  
3.  
Caulking - air leaks around doors, windows, lighting and  
plumbing fixtures can account for as muchas30%oftheload  
on heating and cooling systems. See that all these areas are  
well caulked.  
Do not use plug adapters.  
Do not use an extension cord.  
Do not remove ground prong.  
Always plug into a grounded 3 prong outlet.  
4. Install weather stripping around exterior doors and windows.  
Failure to follow these instructions can result in death,  
fire, or electrical shock.  
5. Have a fireplace?  
Be sure the damper is closed during air  
conditioner operation.  
6. When it’s time to reroof or repaint the outside of your home,  
choose light colors. They reflect heat instead of absorbing it.  
Your safety and the safety of others are very important.  
We have provided many important safety messages in this manual  
and on your appliance. Always read and obey all safety messages.  
7. Shadeyouroutsidewalls(especiallyonthewest)fromthedirect  
sun; most importantly, shade the unit itself. Trees and shrubs  
provide natural shading, but make sure they don’t block the air  
flow 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.  
This is a safety Alert symbol. This symbol alerts you  
to potential hazards that can kill or hurt you and  
others.  
All safety messages will follow the safety alert  
symbol with the word “WARNING” or “CAUTION”.  
These words mean:  
Indicates a hazard which, if not  
avoided, can result in severe  
personal injury or death and damage  
to product or other property.  
8. 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).  
WARNING  
Indicates a hazard which, if not  
CAUTION  
9. Make sure your attic area is properly vented. In addition,  
consider installing turbine or power ventilators to help remove  
hot air from your attic.  
avoided, can result in personal injury  
and damage to product or other property.  
All safety messages will tell you what the potential hazard is, tell you  
how to reduce the chance of injury, and tell you what will happen if  
the instructions are not followed.  
10. Keep your Friedrich unit clean. Use a vacuum cleaner  
attachment for accessible parts, but take care not to damage  
them. Clean the reusable filter at least twice a month.  
Indicates property damage can  
NOTICE  
occur if instructions are not  
11. Set the thermostat at a higher temperature - save 5% in energy  
usage for each degree of temperature over 72°F.  
followed.  
3
How to operate your Friedrich room air conditioner  
To start unit  
ToactivateSmartFan(WY/WEheat-coolmodels)  
If your air conditioner is installed and plugged into a proper receptacle,  
it is ready to go. The first time the unit is started, the compressor will  
delay for three minutes. See Automatic Component Protection on the  
following page.  
9
Press the Smart Fan button to activate the Smart Fan. The light  
will indicate that this feature is in use.  
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.  
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 first turn the unit on, it will be in the Cool mode with con-  
To set the hour clock  
stant fan.  
10  
Touch the Set Hour button to see the current setting. The  
number that is displayed is the approximate time (hour only).  
2
On WS cool-only models, touch the Mode button once to activate  
theMoneySaver® (WSmodelsonly.Seeitem14forMoneySaver  
instructions on WY/WE models).  
MoneySaver® is a feature that cycles the fan with the compres-  
sor so that the fan does not run all the time. This saves energy  
andimprovesdehumidi cation. MoneySaver® willalsoruntotest  
the temperature if the off cycle is too long. Or you may prefer  
constant fan for more air movement. (To return to constant fan,  
touch the Mode button two more times).  
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).  
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.  
In order to run the fan by itself, do the following:  
On WY/WE heat-cool models, touch the Mode button once to  
activatetheFanOnlyfeature. TheFanOnlysettingwillcirculate  
air in the room without the compressor coming on.  
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.  
Continuing from MoneySaver® mode, touch the Mode button  
once to activate the Fan Only feature (WS cool-only models).  
3
12  
After selecting the Start Time, press the Set Hour button once.  
(Stop Light on). Use the  
and  
buttons to select the time  
that the unit will STOP. After selecting the stopping time, press  
the Set Hour button once.  
To adjust temperature  
Use the Mode button to select either the Cool or MoneySaver®  
function (or Heat for WY/WE heat-cool models)  
4
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.  
5
6
7
COOLER – Touch the button to lower the room air temperature.  
WARMERTouchthe buttontoraisetheroomairtemperature.  
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.  
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 Activate Money Saver (WY/WE models)  
To adjust fan speed  
14  
Press the Money Saver button to activate the Money Saver  
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.  
feature. The light will indicate the Money Saver is in use.  
MoneySaver® is a feature that cycles the fan with the compres-  
sor so that the fan does not run all the time. This saves energy  
andimprovesdehumidi cation. MoneySaver® willalsoruntotest  
the temperature if the off cycle is too long. Or you may prefer  
constant fan for more air movement. (To return to constant fan,  
touch the Mode button two more times).  
To activate Smart Fan (WS cool-only models)  
9
Thereisafourthoption,SF, whenselectingthefanspeed. Thisis  
the SMART FAN function. SMART FAN DOES NOT OPERATE  
IN CONJUNCTION WITH THE FAN ONLY MODE.  
4
Digital Control Panels  
Using the remote control  
To start unit (See Figure 3, page 6)  
1
POWER-PressthePowerbuttononce. Theunitwillautomatically  
start in the mode and fan speed it was last left on.  
PM  
To set mode of operation  
2
COOL - Press the Cool button to automatically switch the operat-  
Power  
ing mode to COOL.  
Cool  
Fan  
MoneySaver®  
Speed  
Mode  
3
4
FAN ONLY - Press the Fan Only button if you want to run the  
fan only.  
Fan Only  
Clock  
Timer  
Set  
Start Time  
Stop Time  
HEAT (WY/WE models only) - Press the Heat button to  
automatically switch the operating mode to HEAT.  
On/Off  
Hour  
Temp/Hour  
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.  
5
Figure 1: WS Model cool-only control panel  
To adjust temperature  
6
WARMER-Press the Warmer button to raise the temperature  
setting.  
7
COOLER- Press the Cooler button to lower the temperature  
setting.  
PM  
1
Power  
To adjust fan speed  
2
8
9
3
4
Cool  
8
FAN SPEED - Press the Fan Speed 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.  
Fan  
Smar
Fan  
Fan Only  
Heat  
6
5
Mode  
Speed  
7
Clock  
Money  
Saver  
Timer  
Set  
Start Time  
Stop Time  
14  
13  
On/Of
Hour  
Temp/Hour  
To set the hour clock  
10 11 12  
9
SET HOUR CLOCK - Press the Set Ho.ur 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.  
Figure 2: WY/WE Model heat-cool control panel  
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 Heat/Cool mode to Fan Only mode, and  
mode, there is a three-minute delay before the  
switch back to Heat/Cool  
compressor comes back on.  
5
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.  
10  
11  
12  
TIMER START- PressStart to view the current start time for cool-  
ing. ContinuepressingtheSTARTbuttonuntilyouarriveatthestart  
time you desire. The start time for cooling will then be set.  
Temperature  
Cooler  
Warmer  
Power  
Cool  
Heat  
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.  
Fan  
Fan  
Money  
Saver®  
Only  
Speed  
Timer Operation  
On/Off Start  
Stop Set Hr.  
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 Hour  
.
function must be reset or the function will  
not work.  
Timer On/Off  
Figure 3  
Additional RC1 wireless remote controls can be purchased from your Friedrich dealer.  
WY/WE heat-cool model remote control  
How to clean the air filter  
Your Friedrich room air conditioner is equipped with a Permafoam  
reusable air filter which is not affected by washing. The filter serves to  
remove dust, pollen, and other impurities from the air.  
KEEP THE FILTER CLEAN - A clogged, dirty filter will reduce the  
operating efficiency of your unit and contribute to frosting of the  
indoor coil. Be sure to check the filter at least once a month,  
more frequently if conditions warrant. The filter check  
procedure is easy, due to the unique design of the Friedrich  
DECORATIVE FRONT.  
Filter  
FILTER ACCESS - 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 down toward you, lift up and out of the bottom  
retaining snaps. This will expose the filter. Remove the filter by pulling  
it toward you. Wash the filter 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.  
Intake Grille  
Figure 4  
6
How to change airflow direction  
The DISCHARGE GRILLE is installed at the factory to provide 45º  
upward airflow into the room. (Direction 1 in Figure 5). If a vertical  
air flow is desired (Direction 2), the direction can be changed by rotating  
the DISCHARGE GRILLE.  
WARNING  
Electrical Shock Hazard  
Unplug the air conditioner.  
Use correct circuit protection.  
Failure to follow these instructions can  
result in death, fire, or electrical shock.  
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 5.  
the chassis. Only alternating current (AC) can be used. Consult page  
3 for the correct type of receptacle for your model.  
Reinstall the DISCHARGE GRILLE by placing it in its retaining slots.  
Reattach the DISCHARGE GRILLE RETAINER with the retaining  
screw. The unit is now ready to operate.  
An overloaded circuit will invariably cause malfunction or failure of an  
air conditioner, therefore, it is extremely important that the electrical  
power and the wiring is adequate. Consult your dealer or power  
company if in doubt.  
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 5). The plugs must be  
attached before the DECORATIVE FRONT frame is installed.  
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 determine the correct fuse or circuit  
breaker amperage 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.  
Electrical requirements  
IMPORTANT: Before you begin the actual installation of your air  
conditioner, check local electrical codes and the information below.  
Yourairconditionermustbeconnectedtoapowersupplywiththesame  
AC voltage and hertz rating as marked on the nameplate located on  
Figure 5  
Diameter Plug  
1/4”  
WSD  
Sleeve  
2
2
2
Airflow  
Decorative  
Front  
7
6
5
3
C
1
6
5
4
3
2
1
B
A
B
0
1
A
7
0
S
W
1
#
L
E
D
O
M
1
Discharge  
Grille  
Return  
Air Grille  
7
WARNING  
Figure 6  
NOTE: Your LCDI device will resemble one of these illustrations.  
Electrical Shock Hazard  
Do not use plug adapters.  
Do not use an extension cord.  
RESET  
TEST  
RESET  
Do not remove ground prong.  
Replace damaged cords with new cord  
from manufacturer.  
WARNING  
TEST BEFORE EACH USE  
1. PRESS RESET BUTTON  
TEST  
2. PLUG LDCI INTO POWER  
RECEPTACLE  
3. PRESS TEST BUTTON,  
RESET BUTTON SHOULD  
POP UP  
Failure to follow these instructions can  
result in death, fire, or electrical shock.  
4. PRESS TEST BUTTON,  
FOR USE  
DO NOT USE IF ABOVE TEST  
FAILS  
WHEN GREEN LIGHT IS ON  
IT IS WORKING PROPERLY  
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 certi 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.  
Troubleshooting tips and home  
maintenance  
NEVER CUT OR REMOVE THE GROUNDING PRONG FROM THE  
PLUG.  
Won’t cool  
If the unit operates, but won’t cool, determine if the controls are  
properly set. Set the thermost to a cooler position in order to check  
control settings. Check the filter and clean it thoroughly, if needed.  
Check to see if the vent door is closed.  
Power cord information  
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.  
Check to see if the chassis seal gasket is properly installed (refer to  
page 11 for seal gasket installation).  
To test your power supply cord:  
1. Plug power supply cord into a grounded 3 prong outlet.  
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 thermostat to a warmer position to determine if it  
operates. Also, check the filter and clean it thoroughly, if needed.  
2. Press RESET (See Figure 6).  
3. Press TEST (listen for click; Reset button trips and pops  
out).  
Odors in heating (for heat/cool models only)  
4. Press and release RESET (listen for click; Reset button  
latches and remains in). The power supply cord is ready for  
operation.  
You may notice a smoke odor the first time the heater element comes  
on. This is common in any type of heat system when first turned on  
for the winter. The odor comes from dust and other particles that  
accumulate during the warm months. The odor will dissipate quickly.  
NOTE: LCDI device is not intended to be used as a switch.  
Once plugged in the unit will operate normally without the need to  
reset the LCDI device.  
Won’t run  
If the unit fails to operate, check to see if the power cord is firmly  
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 page 3 in these instructions. After restoring the cu-  
rrent supply to the unit, wait three minutes before unit will restart.  
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  
Line at (800) 541-6645 ext. 845. To expedite service, please have your  
model and serial number available.  
8
Frosting of the indoor coil  
Things to know about a WallMaster heat pump  
Certain operating conditions may produce indoor coil frost. During  
the cooling operation, a dirty filter 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  
thermostat to a slightly warmer position will probably keep the coil  
from frosting over again.  
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 ir passing over cold (below freezing) coil surfaces.  
2. When the outdoor coil forms ice, your heat pump will  
automatically initiate a defrost. The compressor 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 defrost the outdoor coil. After the defrost is completed,  
the unit will automatically return to the heat pump mode.  
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 conditions, the indoor and outdoor  
coils and base pan may require periodic cleaning to maintain eficient  
operation. Your Friedrich dealer should be called when this service  
is required.  
3. Steam may be seen rising from the outdoor coil during the  
defrost. This is similar to expelling warm breath on a cold  
morning.  
WARNING  
Electrical Shock Hazard  
4. If the outdoor temperature drops below 43°F during heat  
pump operation, your WallMaster Heat Pump will automati-  
cally switch to electric resistance heat and will continue to  
operate in this mode as long as the outdoor temperature  
remains at 43º F or below.  
Disconnect power before servicing.  
Replace all parts and panels before  
operating.  
Failure to do so can result in death or  
electrical shock.  
B. A minimum distance of 1" must be allowed on all sides of the unit  
to adjacent wall and floor. Where the subbase is required, the  
minimum distance from the floor to the sleeve must be 3 ½". To  
minimize chances of short cycling of the compressor, the minimum  
clearance between the ceiling and the top of the unit should be  
24". (See Figure 7).  
Installation instructions for  
WSD sleeve  
WARNING  
Falling Object Hazard  
A. Adjustable SUBBASE (SB) or other unit support must be provided  
for panel wall type construction and for walls less than 8" thick.  
Not following Installation Instructions for  
mounting your air conditioner can result  
in property damage, injury, or death.  
Figure 7  
Side View  
Minimum Of 24" Required  
From Top Of Unit To Ceiling.  
Mounting hardware provided  
Inside  
Lintels  
Wall  
ITEM NO.  
DESCRIPTION  
QTY.  
Minimum Of 1" Spacing  
WSD Sleeve  
Required On All Sides  
1
SCREW, #12A x 2"  
7
Of The Unit.  
Wall preparation  
STEP 1 The wall opening required for a WSD SLEEVE is 17 ¼"  
Drain  
high by 27 ¼" wide.  
Extension  
9
16  
" Minimum  
Beyond Outside  
Wall  
STEP 2 LINTELS must be used in opening of brick veneer and  
masonry walls to support the material above the WSD  
SLEEVE. Thefollowingconsiderationsshouldalsobegiven:  
1" Minimum  
3 ½" For Subbase  
5 1/2" Maximum for Subbase  
Outside Wall  
9
Installation requirements  
Sleeve installation  
STEP 1 The WSD SLEEVE should be positioned so that the  
STEP 1 After unpacking the WSD SLEEVE from the carton, remove  
the FRONT PANEL. Place the WSD SLEEVE in the wall  
opening following the instructions given in the INSTALLA-  
TION REQUIREMENTS. Attach the SLEEVE to the  
INSIDEWALLbydrivingtwo#12Ax2"screwsineach side  
of the SLEEVE (see Figure 7). 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).  
9
DRAIN EXTENSION extends a minimum of 16" beyond  
the OUTSIDE WALL (See Figure 7).  
STEP 2 The WSD SLEEVE must extend a minimum of " beyond  
the INSIDE WALL.  
STEP 3 The WSD SLEEVE must be installed level side to side.  
STEP 4 The WSD 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 8, a properly installed unit provides a ½  
bubble slope to the outside of the building.  
Please note that there will be an excess of two #12Ax2"  
screws that will not be used.  
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.  
Figure 8  
STEP 3 Caulk the perimeter of the entire opening on the inside and  
the outside between the SLEEVE and the WALL.  
STEP 4  
Thefrontpanel removedinStep1abovemust be remoun-  
tedbackinplaceifmasonryworkistobedone and/or if the  
"WallMaster" CHASSIS is to be installed at a later date.  
Raised  
Ledge  
Back Unit Rest  
Level  
Slope  
Front Unit Rest  
NOTICE  
SLEEVE projections and leveling precautions  
must be observed to prevent the entry of  
water into the room.  
10  
STEP 3  
STEP 4  
The decorative front is packaged in a separate box inside  
the chassis shipping carton, between the chassis and  
the carton. Remove this box and set the box aside until  
later.  
WallMaster chassis installation  
instructions for WS, WE and WY  
models  
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 damage  
to them. With the help of an assistant, lift 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.  
CAUTION  
Excessive Weight Hazard  
Use two or more people when installing  
your air conditioner.  
Failure to so can resut in back or other  
injury.  
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  
CAUTION  
Cut/Sever  
Although great care has been taken to  
minimize sharp edges in the construction  
of your unit, use gloves or other hand  
protection when handling unit.  
(see Figure 9, Page 12). Make sure the gasket is installed  
beginning from the lower right side corner and extend-  
ing 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 foam chassis seal gasket is not installed, the operation  
of the unit will be negatively affected. Also, the operation  
noise and outside noise will be amplified.  
Failure to do so can result in minor to  
moderate personal injury.  
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 9, Page 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 retaining snaps. itself into upper  
STEP 1 Check the sleeve to be certain it has been correctly installed  
in the wall. Remove the front panel on the WSD SLEEVE.  
Remove the rear WEATHER PANEL. Reverse grille.  
Place lower edge into sleeve tab (Friedrich logo facing out).  
Aligns slots with screw holes. Secure grille with screws.  
A. Checktheanchorscrews. Thereshouldbefour  
(4) in the WSD 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.  
NOTE: Attach the frame to the chassis by installing four (4)  
8A-5/8" screws through the slots in the frame and into the holes in  
the chassis.  
C. Check to be sure the sleeve has been sealed  
around all edges with an industrial type  
caulking on both the outside and inside to  
prevent rain entry.  
D. A sleeve sealing gasket has been provided  
in the chassis shipping carton. Remove it  
from the carton, peel the protective coating  
from the adhesive, and install it in the sleeve  
(adhesive down).  
STEP 2  
Check the electrical receptacle to see that it conforms to  
the requirements for the chassis model to be installed.  
See page 3, for the re  
ceptacle requirements.  
11  
Figure 9  
Chassis Seal  
Gasket  
Decorative Front  
7
6
5
3
C
6
5
4
3
2
1
B
A
B
0
1
A
7
0
S
W
#
L
E
D
O
M
Screws (4)  
Return Air  
Grille  
Alternate drain kits  
WARNING  
Moving Object Hazard  
Replace all panels before operating your air  
conditioner.  
Failure to do so can result in severe personal  
injury or death and damage to product or  
other property.  
Drain nipple  
Basepan  
Drain hose  
Condensate removal (WS, WE  
Figure 10  
Sleeve  
and WY models)  
If you desire to drain condensate from the basepan during unit opera-  
tion, 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:  
DK (Drain Kit)  
In the event that the outdoor temperature drops below 37°F, any water  
that remains in the chassis 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  
very humid climates). For these particular instances, an optional drain  
kit (Accessory #DK) is available for water removal.  
flow is possible in  
STEP 1  
Find the drain rubber plug on the rear of the basepan  
and remove it. (See Figure 10).  
STEP 2  
Remove the knockout in the lower right side of the rear  
grille. Slide the chassis into the WSD SLEEVE so that the  
drain nipple extends through the knockout.  
IDK (Interior Drain Kit)  
New construction allowing for condensate drain systems built within  
the walls can use the Friedrich Interior Drain Kit (Accessory #IDK).  
This kit is designed for installation in the bottom of the sleeve  
below the condensate bellows valve (heat/cool models only).  
STEP 3  
Slide the tubing over 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.  
12  
Friedrich Air Conditioning Company  
P.O. Box 1540  
San Antonio, TX 78295  
210.357.4400  
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  
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.  
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.  
Performance of Friedrich’s Warranty obligation is limited to one of the following methods:  
1. Repair of the unit  
2. A refund to the customer for the prorated value of the unit based upon the remaining warranty period of the unit.  
3. Providing a replacement unit of equal value  
The method of fulfillment of the warranty obligation is at the sole discretion of Friedrich Air Conditioning.  
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  
(10-04)  
repairs being made.  
13  

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