Friedrich SL36, SL28, SL25 User Manual 2
Operating Guide
Heavy Duty
Room Air Conditioner
SL25 | SL28 | SL36
Please register
your air conditioner
Model information can be found on the
name plate behind the front.
Please complete and mail the owner
registration card fu rnished with this product,
or register on-line at www.friedrich.com
(USA only). For your future con ve nience,
record the model information here.
920-002-10 (11-04)
MODEL NUMBER
SERIAL NUMBER
PURCHASE DATE
920-002-10 (11-04)
Congratulations
Your QuietMaster unit is designed for cooling medium to large areas in both residential and com mer cial applications.
The unit is simple to operate and provides maximum effi ciency and quiet operation.
Table of Contents
Before Operating Your Unit ........................................................................................................................................................... 2
To Start Unit ................................................................................................................................................................................... 4
Function Control ............................................................................................................................................................................ 4
Temperature Control ...................................................................................................................................................................... 4
MoneySaver® Feature .................................................................................................................................................................... 4
To Remove Filter ............................................................................................................................................................................ 5
Fresh Air and Exhaust Control ...................................................................................................................................................... 5
Troubleshooting Tips ...................................................................................................................................................................... 6
War ranty .......................................................................................................................................................................................... 7
WARNING! Before operating your unit
Make sure the wiring is adequate for your unit.
If you have fuses, they should be of the time delay type.
Before you install or relocate this unit, be sure that the
amperage rating of the circuit breaker or time delay fuse
does not exceed the amp rating listed in Figure 1.
DO NOT use an extension cord.
The cord provided will carry the proper amount of electrical
power to the unit. An extension cord will not.
Make sure that the receptacle is compatible with
the air conditioner cord plug provided.
This insures proper grounding. 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.
2
920-002-10 (11-04)
Test the power cord
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 2).
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: The 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.
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 1-800-541-6645 ext. 662. To
expedite service, please have your model and serial number
available.
CIRCUIT RATING OR
MODEL
SL25 • SL28 20 250 6-20P
SL36 30 250 6-30P
TIME DELAY FUSE
AMP VOLT
PLUG FACE
NEMA NO.
RESET
TEST
Test Button
Reset Button
Figure 1 Figure 2
For best cooling performance and highest energy efficiency
Keep the filter clean
Make sure that your air conditioner is always in top
performing condition by cleaning the filter reg u lar ly.
In struc tions for removing and cleaning the fi lter can be
found on page 5.
Provide good airflow
Make sure the airfl ow to and from the unit is clear. Your
air conditioner puts the conditioned air out at the top of the
unit, and takes in unconditioned air at the bottom. Airfl ow
is critical to good operation. It is just as important on the
outside of the build ing that the airfl ow around the unit
exterior is not blocked.
Insulation
Good insulation will be a big help in maintaining desirable
comfort levels. Doors should have weather stripping. Be
sure to caulk around doors and windows.
Proper installation of seal gasket
Make sure the seal gasket has been installed properly to
minimize noise and improve effi ciency. If the seal gasket
has not been installed, please refer to your installation
instruction manual.
Unit placement
If your air conditioner can be placed in a window or wall
that is shaded by a tree or another building, the unit will
operate even more effi ciently. Using drapes or blinds on
the sunny side of the dwelling will also add to your unit’s
effi ciency.
3
920-002-10 (11-04)
Mode
CoolerWarmer
Wait three minutes before restarting
Temperature
Money Saver
Yes No
Low
Cool
Off
Med
Cool
Fan
Only
High
Cool
How to operate your Friedrich room air con di tion er
To start unit
If your air conditioner is installed and plugged into a
properly grounded re cep ta cle, it is ready to op er ate.
Mode control
This dial allows you to select cooling at three different
speeds, as well as Fan Only.
Off- turns the unit off.
Hi Cool- for quick cooling.
Med Cool- to maintain a de sired temperature.
Lo Cool- for night time use, or when demand is low.
Fan Only- will circulate air in the room without the
compressor coming on.
This setting can also be used with the EXHAUST air set ting
to remove stale air or smoke from the room; or it can be
used with the FRESH AIR setting to bring outside air into
the room. This is especially useful in the spring and fall
when cooling may not be nec es sary. The FRESH AIR and
EXHAUST controls are in the upper air discharge area.
The center po si tion of this control is the normal, or closed
position, which recirculates air for maximum performance
in the cool ing mode.
Figure 3
Temperature control
This dial is the thermostat. Turn it clock wise for cooler
temperature and counterclockwise for warmer.
MoneySaver® switch
This rocker switch can be depressed to ei ther Yes or No.
The Yes position provide the most economical op er a tion.
Both the fan and compressor will cycle on and off together,
main tain ing the selected temperature at a more constant
level and reducing the humidity more effi ciently. This
control will only operate when the unit is in a Cool mode.
In the No position, the fan will run constantly as long as the
unit is in the cooling mode.
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920-002-10 (11-04)
Removing and cleaning the filter / fresh air and exhaust feature
To remove, wash and replace filter and return air grille
Open the return air (RA) grille by grasping it at the top
outside edges and pulling towards you (See Figure 4). The
RA grille will stay open until it is detached or closed (it is
easier to completely detatch the grille before closing it).
To remove the RA grille, grasp it at the bottom and pull
towards you.
The fi lter is held in place by two spring clips (See Figure 5).
Push down on the clips, grasp the fi lter and pull towards you
to remove it for cleaning. Clean with warm water and a mild
detergent, rinse, dry completely and replace. Use caution
when removing the fi lter. The internal metal components
are sharp.
If the RA grille has been removed, pick up the grille by
supporting it from both sides near the bottom (See Figure 5,
Note 1). Lift return air grille and insert the grille's tabs into
the bottom slots of the discharge air plenum (See Figure 5,
Note 2). Snap the grille into place by pushing the grille up
and onto the unit's latches at the bottom (See Figure 5, Notes
3 and 4).
Fresh air and exhaust control
Your air con di tion er has the ability to bring fresh air into the
room and ex haust stale air out of the room. The con trol le ver
is found on the upper part of the unit (See Fig ure 6).
TO BRING IN FRESH AIR - Move the lever to the FRESH
AIR position which allows outside air to enter the room.
This is useful in fall and spring as a means of bringing in
fresh outside air when using FAN ONLY. It can also be
used in the summer with the com pres sor in the Cool ing
Mode if you wish. Normally, for most effi cient operation,
cooling is ac com plished with this control in the middle or
closed position.
TO EXHAUST INDOOR AIR - Move the lever to the
EXHAUST position. This will allow stale air to be expelled
to the outside of the dwelling. This is es pe cial ly handy in
the winter when indoor air tends to get stale, or after a
social gathering involving smokers, or to re move odors
after cooking.
Figure 4
DISCHARGE AIR PLENUM
SLOT
TAB
NOTE 1
NOTE 3
Figure 5
LATCHES
RETURN AIR GRILLE
NOTE 2
NOTE 4
SIDE VIEW
SLOT
TAB
RETURN AIR GRILLE
NOTE 1
NOTE 3
LATCH
Figure 6
5
Troubleshooting tips
920-002-10 (11-04)
Won’t cool?
If your air conditioner operates, but won’t cool; check to see
if the controls are properly set. Check the fi lter and clean
tho roug hly i f neede d. Che ck to see if t he vent do or is closed.
Check to see if the chassis seal gasket is installed (refer to
installation instructions).
Won’t run?
Make sure the power cord is plugged in all the way. Check
for a bad fuse, tripped breaker or tripped LCDI Device.
Refer to page 3 for LCDI reset instructions and to confi rm
proper fuse size.
This is a warm weather appliance
Your air conditioner is designed to cool in warm weather
when the outside temperature is above 60°F (16°C) and
below 115°F (46°C), so it won’t cool a room if it is already
cool outside. If you want to cool a room in the winter, set
the unit to Fan Only and set the Fresh Air/Exhaust control
to Fresh Air. This will bring in a supply of outside air.
Condensation is normal
Air co ndit ione rs act ua lly p ump he at and humidit y from you r
room to the outside air. Hu mid i ty be comes water, and your
air conditioner will use most of the water to keep the outside
coil cool. If there is excessive humidity, there may be excess
water that will drip outside. This is normal op er a tion.
Frosting
This usually occurs because of insuffi cient airfl ow across
the coils, a dirty fi lter, cool, damp weath er, or all of these.
Set unit to Fan Only and the frost will disappear. Setting
the ther mo stat a little warmer will probably prevent the
frosting from recurring.
Noises
All air conditioners make some noise. Friedrich
QuietMasters
di tion er mount ed in a wall is quieter than one mounted in
a window. If mounted in a window, the window mount kit
provided with QuietMaster
sound levels, when prop er ly installed. It is important to ensure that the chassis seal gasket is properly installed (refer
to installation instructions).
®
operate as quietly as possible. An air con-
®
models will reduce operating
Cleaning your air conditioner
The decorative front and the cabinet can be cleaned with
warm water and a mild detergent. The indoor coil can
be vacuumed with a dusting attachment if it appears to
be dirty. The outdoor coil can be gently sprayed with a
hose if you can get to it. If not, you might call your dealer
for a more thorough cleaning when needed. The air fi lter
should be inspected weekly and cleaned if needed by
vacuuming with a dust attachment or by cleaning in the
sink using warm water and a mild dishwashing detergent.
Dry thoroughly before reinstalling the fi lter.
6
920-002-10 (11-04)
Friedrich Air Conditioning Company
P.O. Box 1540
San Antonio, TX 78295
210.357.4400
www.friedrich.com
ROOM 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)
7
Guia de funcionamiento
Serie Para Trabajo Pesado
Unidad de Aire Condicionado
SL25 | SL28 | SL36
Revise su unidad de
aire acondicionado
para habitación
Información muy importante sobre este
modelo se puede encontrar en la placa
qu e l leva e l nù mero d istint ivo de l a u nida d,
detrás de la parte delantera.
Por favor llene completamente y envíe por
correo la tarjeta de inscripción (registro)
de propiedad que se le provee con este
producto, o inscríbase usando la internet,
en la dirección www.friedrich.com
(en los Estados Unidos solamente).
Para conveniencia futura, anote aquí la
información sobre el modelo.
920-002-10 (11-04)
NUMERO DE MODELO
NUMVERO DE SER IE
FECHA DE COMPRA
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