User Manual
4 5
Safety Precautions
Your safety and the safety of others is very 
important.
We have provided many important safety messages in this manual and on your 
appliance. Always read and obey all safety messages.
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.
Indicates a hazard which, if not 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.
Indicates property damage can occur if instructions are not followed.
 WARNING
Refrigeration system
under high pressure
Do not puncture, heat, expose to ame or incinerate.
Only certied refrigeration technicians should service 
this equipment.
R410A systems operate at higher pressures than R22 
equipment. Appropriate safe service and handling 
practices must be used.
Only use gauge sets designed for use with R410A.  
Do not use standard R22 gauge sets.
NOTICE
 CAUTION
 WARNING
SAFETY 
FIRST
 WARNING  AVERTISSEMENT  ADVERTENCIA
Do not remove, disable or 
bypass this unit’s safety 
devices. Doing so may cause 
re, Doing so may cause re, 
injuries, or death.
Ne pas supprime, désactiver ou 
contourner cette l´unité des 
dispositifs de sécurité, faire vous 
risqueriez de provoquer le feu, les 
blessures ou la mort.
No eliminar, desactivar o pasar 
por alto los dispositivos de 
seguridad de la unidad. Si lo hace 
podría producirse fuego, lesiones 
o muerte.
THINK
 WARNING
Electrical Shock Hazard
Make sure your electrical receptacle has the 
same conguration as your air conditioner’s 
plug. If different, consult a Licensed Electrician.
Do not use plug adapters.
Do not use an extension cord.
Do not remove ground prong.
Always plug into a grounded 3 prong outlet. 
Failure to follow these instructions can result 
in death, re, or electrical shock.
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 Table 1.
DO NOT use an extension cord.
The cord provided will carry the proper amount of electrical power to the 
unit; an extension cord may not.
Make sure that the receptacle is compatible with the air 
conditioner cord plug provided.
Proper grounding must be maintained at all times. Two prong receptacles 
must be replaced with a grounded receptacle by a certied electrician.
The grounded receptacle should meet all national and local codes and 
ordinances. You must use the three prong plug furnished with the air 
conditioner. Under no circumstances should you remove the ground 
prong from the plug.
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 on the end of the cord meets the UL and NEC requirements 
for cord connected air conditioners.
To test your power supply cord:
1. Plug power supply cord into a grounded 3 prong outlet.
2. Press RESET (see Figure 1).
3. Press TEST, listen for click; the RESET button trips and pops out.
4.  Press and release RESET (Listen for click; RESET button latches and 
remains in). The power cord is ready for use.
WARNING: Before Operating Your Unit
Figure 1
FRR072
WARNING:
TEST BEFORE EACH USE!
1. PRESS REST BUTTON.
2. PLUG LCDI INTO POWER 
RECEPTACLE.
3. PRESS TEST BUTTON, 
RESET BUTTON SHOULD 
POP UP.
4. PRESS RESET BUTTON 
FOR USE.
DO NOT USE IF ABOVE 
TEST FAILS.
WHEN GREEN LIGHT 
IS ON, IT IS WORKING 
PROPERLY!
TEST
RESET
Once plugged in, the unit will operate normally without the need to reset 
the LCDI device. If the LCDI device fails to trip when tested or if the 
power supply cord is damaged, it must be replaced with a new power 
supply cord from the manufacturer. Contact our Technical Assistance 
Line at (800) 541-6645. To expedite service, please have your model 
number available.
NOTICE
Do not use the LCDI device as an ON/OFF switch.
Failure to adhere to this precaution may cause 
premature equipment malfunction.
Table 1
MODEL
CIRCUIT RATING
OR TIME DELAY
FUSE
REQUIRED
WALL
RECEPTACLE
AMP VOLT
NEMA
NO.
WCT08, WCT10,
WCT12 15 125 5-15P
WCT10, WCT12, 
WCT16 15 250 6-15P
WET10, WET12,
WET16, WHT12 20 250 6-20P










