Service/ Parts Manual Room Air Conditioners Standard Chassis Models Kühl 115-Volt: KCS08A10A, KCS10A10A, KCS12A10A, KCS14A10A, KCM14A10A 230-Volt: KCS12A30A, KCS16A30A, KCM18A30A, KCM21A30A KCL24A30A, Kühl + 230-Volt: KES12A33A, KES16A33A, KEM18A34A, KEL24A35A, KCL24A30B, KCL28A30A, KCL36A30A KEL24A35B, KEL36A35A Electric Heat Kühl + Heat Pump 1 93001403_03 115-Volt: 230-Volt: KHS10A10A KHM12A33A, KHM18A34A, KHL24A35A
Table of Contents INTRODUCTION 3 Important Safety Information 3 PERSONAL INJURY OR DEATH HAZARDS 4 New Kühl Control Options 6 Component Identification 7 Model and Serial Number Location 7 Model Number Reference Guide 8 Serial Number Reference Guide 9 SPECIFICATIONS 10 Refrigeration Systems Performance Data 10 Installation 12 Electrical Data 13 OPERATION 15 Airflow Selection and Adjustment 15 User Interface 16 Wi-Fi Set Up Instructions 28 Control Panel 32 Remote Control 33 Unit 34 Refrigeration
INTRODUCTION Important Safety Information The information in this manual is intended for use by a qualified technician who is familiar with the safety procedures required for installation and repair, and who is equipped with the proper tools and test instruments required to service this product.
INTRODUCTION PERSONAL INJURY OR DEATH HAZARDS WARNING SAFETY FIRST Do not remove, disable or bypass this unit’s safety devices. Doing so may cause fire, Doing so may cause fire, injuries, or death. AVERTISSEMENT 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. ADVERTENCIA No eliminar, desactivar o pasar por alto los dispositivos de seguridad de la unidad.
INTRODUCTION PERSONAL INJURY OR DEATH HAZARDS 5 • REFRIGERATION SYSTEM REPAIR HAZARDS: • Use approved standard refrigerant recovering procedures and equipment to relieve high pressure before opening system for repair. • Do not allow liquid refrigerant to contact skin. Direct contact with liquid refrigerant can result in minor to moderate injury. • Be extremely careful when using an oxy-acetylene torch. Direct contact with the torch’s flame or hot surfaces can cause serious burns.
INTRODUCTION New Kühl Control Options The new Kühl gives you a variety of options for control, programming, and scheduling including wireless capabilities. Wireless Programming and Control: Friedrich Connect allows you to conveniently control, program, and monitor your air conditioning unit remotely from a smartphone or computer. Programmable Timer Options: Your unit’s digital control comes equipped with a 24-hour timer.
INTRODUCTION This service manual is designed to be used in conjunction with the installation and operation manuals provided with each air conditioning system. This service manual was written to assist the professional service technician to quickly and accurately diagnose and repair malfunctions. Installation procedures are not given in this manual. They are given in the Installation/Operation manual which can be aquired on the Friedrich website.
INTRODUCTION Model Number Reference Guide K C M 21 A 3 0 A - A MODEL TYPE K - KUHL W - WALLMASTER FUNCTION C - COOL ONLY E - ELECTRIC HEAT H - HEAT PUMP APPLICATION S - SMALL M - MEDIUM L - LARGE ENGINEERING REVSION LETTER INDICATES AN ENGINEERING MODIFICATION TO AN EXISTING MODEL MARKETING SUFFIX LETTER INDICATES MODIFICATION TO AN EXISTING MODEL HEAT STRIP 0 - STRAIGHT COOL & HEAT PUMP 3 -3.3 KW HEAT STRIP, NOMINAL 4 - 4.0 KW HEAT STRIP, NOMINAL 5 - 5.
INTRODUCTION Serial Number Reference Guide 17 12 M 00001 YEAR OF MANUFACTURE 17 = 2017 18 = 2018 19 = 2019 20 = 2020 21 = 2021 22 = 2022 MONTH OF MANUFACTURE 01 = JANUARY 02 = FEBRUARY 03 = MARCH 04 = APRIL 05 = MAY 06 = JUNE 07 = JULY 08 = AUGUST 09 = SEPTEMBER 10 = OCTOBER 11 = NOVEMBER 12 = DECEMBER NUMERIC SEQUENCE FIRST UNIT OF EACH MONTH = 00001 FACTORY DESIGNATION M = FRIEDRICH MTY Figure 105 (Serial Number Reference Guide) 9
SPECIFICATIONS Refrigeration Systems Performance Data Electrical Ratings R-410A REF. Breaker Condensor Temp Deg F. Discharge Temp Deg. F KCS08A10A 111 154 59 6.5 30.5 24.5 115 15 KCS10A10A 114 155 56 8.5 49 32 115 15 KCS12A10A 118 159 54 9.5 52 33 115 15 KCS12A30A-A 117 170 69 4.8 29 35.9 230 15 KCS12A30A-B 117 170 69 4.8 29 35.5 230 15 KCS12A30A-C 117 170 69 4.8 29 35.9 230 15 KCS12A30A-D 117 170 69 4.8 29 27.
SPECIFICATIONS Model UPC Cooling Btu Heating Btu Volts Cooling Amps Cooling Watts Heating Amps Heating Watts EER CEER Moisture RemovalCOP Pints/HR CFM Sleeve Kühl® (Cool Only) 724587436631 KCS08A10A 8000 — 115 6.5 661 — — 12.1 12.0 — 1.9 255 KCS10A10A 724587432640 10000 — 115 8.5 826 — — 12.1 12.0 — 2.9 300 KCS12A10A 724587432688 12000 — 115 9.5 1000 — — 12.0 12.0 — 3.5 300 KCS12A30A 724587432695 12000 — 230 4.8 992 — — 12.1 12.
SPECIFICATIONS Installation Depth Shell with Front Depth Inches to Louvers Inches Window Width INCHES In-wall Installation Finished Hole Inches Minimum Extension Into Room* Inches Minimum Extension Outside * Inches Minimum** Maximum Height Width Carton Dimensions Inches Max.
SPECIFICATIONS Electrical Data WARNING NOTICE ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. FIRE HAZARD All electrical connections and wiring MUST be electically unsafe conditions which could cause moderate or serious property damage. Read, understand and follow the above warning. the National Electrical Code and all local codes which have jurisdiction. Failure to do so can result in personal injury or death.
SPECIFICATIONS Electrical Data WARNING Electrical Shock Hazard RESET Make sure your electrical receptacle has the same configuration 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, fire, or electrical shock. TEST WARNING: TEST BEFORE EACH USE! 1. PRESS REST BUTTON. 2.
OPERATION Airflow Selection and Adjustment Airflow direction adjustment The airflow path may be adjusted to distribute air independently from the left or right side of the discharge opening. Each of the banks of louvers can be directed left, right, up, or down in order to achieve the most optimum airflow positioning. To adjust airflow direction, grab the lever in the center of the louver bank and move it in the direction that you would like the air to be directed.
OPERATION User Interface All of the control panel function buttons and mode icons can be viewed in Figures 302 and 303. Power On – Press the button to turn on the air conditioner. The power button illuminates to indicate that the power is on. The backlight on the power switch will automatically turn off after 20 seconds of inactivity. The remote control can also be used to turn power ON / OFF (see Remote Control). Display – The display is a high efficiency LCD with a built-in backlight.
OPERATION User Interface Accessing Sub-Menus The MENU button accesses the sub-menu. See Figure 10. Press the Menu Button to enter the Menu. See Figure 304. The arrow buttons navigate the 6 menu options. See Figure 305. – LIM – LOCK – TM – CnCT – F-C – diAG The return button exits the menu. See Figure 305.
OPERATION User Interface Navigating Inside the Sub-Menus The MENU button moves you forward through the sub-menu. See Figure 307. The return button moves you backward once inside the LIM and TM menus. See Figure 308.
OPERATION User Interface The LIM Menu (LIMIT) This is the limit menu. See Figure 309. Upon entering the menu, the first option will be to set the lower setpoint limit using the arrow buttons. See Figure 310. Then you can set the higher setpoint limit using the arrow buttons. See Figure 311. Pressing the menu button completes the limit setting. See Figure 312.
OPERATION User Interface The TM Menu (Timer) This is the TM menu used to set a timer. See Figure 313. In the menu, you set the current time using the arrow buttons. See Figure 314. (Note: These two “set clock” steps will be skipped if the unit is already connected to Wi-Fi.) First, set the hour. Using the MENU button, you switch to the minutes and complete setting the time. See Figure 315. You select your mode. Either cool, heat, or auto. Toggle these using the mode button. See Figure 316.
OPERATION User Interface The TM Menu (Timer) continued Auto mode selected. See Figure 317. Set the cool setpoint for your first timer period using the arrow buttons. The cooling mode timer only sets the cool setpoint. See Figure 318. Next, set the heat setpoint for your first timer period. The heating mode timer only sets the heat setpoint. See Figure 319. Note: The auto mode timer sets both the cool and heat setpoint. Set the time to start the first timer period. See Figure 320.
OPERATION User Interface The TM Menu (Timer) continued Set the cool setpoint for the second scheduled timer. See Figure 321. Set the heat setpoint for the second timer. Set the time to start the second timer period. See Figure 322. Press the MENU button to complete the time timer setup. See Figure 323.
OPERATION User Interface The F-C Menu (Fahrenheit/ Celsius) This menu is used to toggle between Fahrenheit and Celsius. See Figure 324. Using the arrow buttons on the right side switches it from Fahrenheit to Celsius. See Figures 325 and 326.
OPERATION User Interface The Lock Menu This menu is used to lock the settings with a four(4) digit passcode. This is the Lock Menu. See Figure 327. The menu lock is defaulted to off. Use the arrows to toggle between off and on. See Figure 328. This is LOCK on. See Figure 329. Set the first digit of the password using the arrow buttons. Use the menu button to proceed to the next digit. See Figure 330. Repeat the previous step for the remaining three(3) digits.
OPERATION User Interface The Lock Menu continued The ON on the right side of the display shows the lock function is active. To go back into the menu, select the menu button again. See Figure 331. Enter the password in the same manner it was created. See Figure 332. Entering the correct password will give the user access to all of the sub-menus. See Figure 333. Accessing the lock menu will allow you to toggle lock OFF if needed.
OPERATION User Interface The diAG Menu This menu is used to access the diagnostic codes. See Figure 337. Selecting this sub-menu shows the E that represents “Error.” See Figure 338. Toggle through the error codes using the arrow keys. See Figure 339.
OPERATION User Interface The CnCT Menu (WiFi Connection) This menu is used to turn on Wi-Fi connection. This is the CnCT menu. Pressing the menu button will activate Wi-Fi. See Figure 335. To setup WiFi, refer to Wi-Fi setup instructions. The Wi-Fi symbol in the top right corner of the display shows Wi-Fi connection is on. See Figure 336.
OPERATION Wi-Fi SET UP INSTRUCTIONS Below are the set-up instructions for Wi-Fi to use your unit wirelessly. Follow the instructions below: 1. Write down the following information prior to beginning this process (If you do not know this information you can check your router or contact your internet provider) a. WI-FI Network Name (SSID)__________________________ b. WI-FI Network Security Type (Open, wep, wpa, wpa2) _________ c. WI-FI Network Password ___________________________ 2.
OPERATION Wi-Fi SET UP INSTRUCTIONS (CONT) 6. To start the setup process click the menu button on the Control Panel of your Kühl model. NOTE: If the Display is not illuminated, you will need to need click the menu button to illuminate the Display and then click it again to start the setup process. 7. Using the up and down arrows, navigate to the CnCT screen. MENU RETURN Steps 6 and 7 (Get to the CnCT Screen) 8.
OPERATION Wi-Fi SET UP INSTRUCTIONS (Continued) 10. Go to the Wi-Fi settings on your mobile device and connect to “FriedrichConnect_xxxx” network. (xxxx is the network name of the Friedrich unit) Step 10 (Connect WiFi to “Friedrich”) 11. Go back to the Friedrich instructions on your mobile device and click next. Step 11 (Click next) 12. A screen will appear asking you to enter your Wi-Fi credentials. 13. Enter the information as you recorded it at the beginning of the process.
OPERATION Wi-Fi Set Up Instructions (Continued) 14. Click next. NOTE: You will receive a pop up box message stating “Credentials successfully saved. Please connect back to your Wi-Fi network and click “Next”. NOTE: You will receive a message (Waiting for network connection). 15. Go back to the Wi-Fi settings on your mobile device and connect back to your Wi-Fi network. 16. Go back to the Friedrich instructions on your mobile device and click next.
OPERATION Control Panel SYSTEM - The MODE button allows you to sequentially select up to four modes of operation: AUTO Available on select models COOL HEAT Available on select models FAN ONLY AUTO FAN (No Cooling Demand) When in AUTO mode, the fan only operates when the system has a demand to cool or heat the room. In the ON fan mode, the fan operates all the time. The system periodically cools or heats the fan’s airflow but the flow of air does not stop.
OPERATION Remote Control Remote Control - Refer to Figure 340A during operation description. Getting Started - Install two (2) AAA batteries in the battery compartment located on the back of the unit. Operation - The remote control should be within 25 feet of the air conditioner for operation (refer to Figure 340B for effectiveness). Press the power button to turn the remote on. The remote will automatically power off after 15 seconds if the buttons are not being pressed.
Operation Unit Cooling Your air conditioner is designed to cool in warm weather when the outside temperature is above 60 °F (15.6 °C) and below 115 °F (46.1 °C), so it won’t cool a room if it is already cool outside. If you want to cool a room in the spring or fall, select the FAN ONLY mode and set the Fresh Air/ Exhaust air control to Fresh Air. This will bring in a supply of cooler outside air. Condensation is normal Air conditioners actually pump the heat and humidity from your room to the outside.
OPERATION Unit Cooling Mode Once the ambient temperature rises past the cool demand threshold (Cool Set Point + 1.5 ˚F) (see figure below), and the compressor is not locked out, the cooling cycle begins. As shown in the figure below, the fan is started 5 seconds prior to the compressor. Once the ambient temperature has been lowered to the cool set point (Cool Set Point minus .25 ˚F), the cooling cycle starts to terminate by shutting off the compressor. After a 30 seconds delay, the fan is shut off.
OPERATION Unit Heat Control Operation - Heat Pump Only Unit (KHS10A10 has no electric heat back-up) Once the ambient temperature falls below the Heating Demand Threshold (1.5 ˚F Below the Heat Set Point Temperature), the heating cycle begins. The fan is turned on 5 seconds before. Satisfied Point Figure 343 (Heat Control (Heat Pump Only) KHS10A10 Heat Pump Defrost Cycle Operation The defrost in this unit is an active reverse cycle.
OPERATION Unit Heat Control Operation - HeatPump With Electric Heat This heating is more complex due to the possibility of two heating methods. If the ambient indoor temperature is be-low the heat demand threshold (1.5˚F below the heat set point temperature), and the compressor is not locked out, turn on compressor. If the ambient indoor temperature is 0.25˚F above the heat set point turn off the compressor..
OPERATION Unit Heat Control Operation - Heat Pump With Electric Heat (Continued) Automatic Emergency Heat If the sealed system fails with a bad reversing valve or anything that causes the indoor coil to get colder than the indoor ambient temperature: 1) If the indoor coil thermistor senses a 5 degree temperature drop as compared to the ambient temperature thermistor and this lasts up to 5 minutes, the control board will switch the unit to electric heat and continue heating with it.
OPERATION Heating Fan Delay This is only for fan Mode Auto (Fan cycles with cool/heat operation) and not for continuous fan mode. When unit cycles Heating ON – starts the fan 5 seconds EARLY. When unit cycles Heating OFF – DELAYS the fan off for 15 seconds. Fan Speed Change Delay Relay activation is delayed by a minimum number of seconds. The default for this value is 2 seconds and is used to eliminate relay chatter.
OPERATION Refrigeration Sequence Of Operation A good understanding of the basic operation of the refrigeration system is essential for the service technician. Without this understanding, accurate troubleshooting of refrigeration system problems will be more difficult and time consuming, if not (in some cases) entirely impossible. The refrigeration system uses four basic principles (laws) in its operation they are as follows: 1. “Heat always flows from a warmer body to a cooler body.” 2.
ROUTINE MAINTENANCE Remove And Install The Front Cover WARNING ELECTRIC SHOCK HAZARD Disconnect power to the unit before servicing. Failure to follow this warning could result in serious injury or death. Remove the decorative front cover. 1. Using the tool provided (see figure below), loosen the four (4) captive screws as shown in figure 401 Location of the Grill Removal Tool B Figure 401 (Remove and Install the Front Cover) Install the decorative front cover. 1.
Routine Maintenance Coils & Chassis NOTE: Do not use a caustic cleaning agent on coils or base pan. Use a biodegradable cleaning agent and degreaser. The use of harsh cleaning materials may lead to deterioration of the aluminum fins or the coil end plates. The indoor coil and outdoor coils and base pan should be inspected periodically (annually or semi-annually) and cleaned of all debris (lint, dirt, leaves, paper, etc.) as necessary. Under extreme conditions, more frequent cleaning may be required.
ROUTINE MAINTENANCE Standard Filter Removal / Installation Instructions 1. 2. Swing the door open, See Figure 402, and remove the filter by grasping the filter grip and pushing the filter holder upward and outward. See Figure 403. Slide the filter grip out from the filter as shown in Figure 404. NOTE: Make sure the front frame with the mesh filter is facing you. 3. Swing the front frame open. See Figure 405. Clean the front frame by washing the dirt from the filter.
ROUTINE MAINTENANCE Premium Carbon Filter Removal / Installation Instructions 1. Remove the filter per Standard Filter Removal Installation Refer to Figure 402 and 403. 2. Hold the filter at the top and slide the grip out as shown on Figure 405. 3. If you already have a carbon filter installed remove the dirty filter by laying the filter down and swinging open the front frame as shown in Figure 406. NOTE: Make sure the frame with the mesh is facing toward you. 4.
REMOVE AND INSTALL THE CHASSIS Remove The Chassis CAUTION Do not push, pull, or lift from center of support Use Handle Locations (both sides) WARNING ELECTRIC SHOCK HAZARD Disconnect power to the unit before servicing. Failure to follow this warning could result in serious injury or death. ENTRYGARD RETAINER WIRE FAR RIGHT SCREW Figure 501 (Chassis Removal and Installation) Support Bracket Figure 502 (Support Bracket) 45 1. Remove the decorative front cover. See Routine Maintenance Figure 401. 2.
REMOVE AND INSTALL THE CHASSIS Install The Chassis CAUTION Do not push, pull, or lift from center of support Use Handle Locations (both sides) 1. Carefully team lift the chassis and set it into the cabinet. 2. Slide the chassis stopping approximately 3” from full insertion. 3. Insert the chassis seal gasket (See Figure 503) one inch deep between the chassis and the cabinet A paint stir stick or ruler might be helpful here.
R-410A SEALED SYSTEM REPAIR WARNING Refrigeration system under high pressure O service this equipment. R410A systems operate at higher pressures than R22 equipment. Appropriate safe service and handling practicces must be used. Only use gauge sets designed for use with R410A. Do not use standard R22 gauge sets. The following is a list of important considerations when working with R-410A equipment 1. R-410A pressure is approximately 60% higher than R-22 pressure. 2.
R-410A SEALED SYSTEM REPAIRS WARNING RISK OF ELECTRIC SHOCK Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenances or service. Failure to do so could result in electric shock, serious injury or death. WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure. Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants.
R-410A SEALED SYSTEM REPAIRS Undercharged Refrigerant Systems WARNING RISK OF ELECTRIC SHOCK Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenances or service. Failure to do so could result in electric shock, serious injury or death. WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure. Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants.
R-410A SEALED SYSTEM REPAIRS Overcharged Refrigerant Systems WARNING RISK OF ELECTRIC SHOCK Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenances or service. Failure to do so could result in electric shock, serious injury or death. WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure. Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants.
R-410A SEALED SYSTEM REPAIRS Restricted Refrigerant System Troubleshooting a restricted refrigerant system can be difficult. The following procedures are the more common problems and solutions to these problems. There are two types of refrigerant restrictions: Partial restrictions and complete restrictions. A partial restriction allows some of the refrigerant to circulate through the system. With a complete restriction there is no circulation of refrigerant in the system.
R-410A SEALED SYSTEM REPAIRS Sealed System Method of Charging/ Repairs WARNING CAUTION BURN HAZARD Proper safety procedures must be followed, and proper protective clothing must be worn when working with a torch. FREEZE HAZARD Proper safety procedures must be followed, and proper protective clothing must be worn when working with liquid refrigerant. Failure to follow these procedures could result in moderate or serious injury.
COMPONENT TESTING Hermetic Components Check WARNING WARNING BURN HAZARD Proper safety procedures must be followed, and proper protective clothing must be worn when working with a torch. CUT/SEVER HAZARD Be careful with the sharp edges and corners. Wear protective clothing and gloves, etc. Failure to follow these procedures could result in moderate or serious injury. Failure to do so could result in serious injury.
COMPONENT TESTING Reversing Valve Description And Operation The Reversing Valve controls the direction of refrigerant flow to the indoor and outdoor coils. It consists of a pressure-operated, main valve and a pilot valve actuated by a solenoid plunger. The solenoid is energized during the heating cycle only. The reversing valves used in the RAC system is a 2-position, 4-way valve. The single tube on one side of the main valve body is the high-pressure inlet to the valve from the compressor.
COMPONENT TESTING Testing The Reversing Valve Solenoid Coil WARNING ELECTRIC SHOCK HAZARD Disconnect power to the unit before servicing. Failure to follow this warning could result in serious injury or death. The solenoid coil is an electromagnetic type coil mounted on the reversing valve and is energized during the operation of the compressor in the heating cycle. 1. Turn off high voltage electrical power to unit. 2. Unplug line voltage lead from reversing valve coil. 3.
COMPONENT TESTING Checking The Reversing Valve WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure. Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants. Failure to follow these procedures could result in serious injury or death. NOTE: You must have normal operating pressures before the reversing valve can shift.
COMPONENT TESTING Replace The Reversing Valve NOTICE WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure. FIRE HAZARD The use of a torch requires extreme care and proper judgment. Follow all safety recommended precautions and Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants. notice could result in moderate to serious property damage.
COMPONENT TESTING Touch Test Chart : To Service Reversing Valves Normal Cooling Normal Heating Hot Hot NOTES: RIGHT Pilot LEFT Pilot 5 RIGHT PilotTube Capillary Capillary Tube 4 LEFTCapillary Pilot Tube Capillary Tube 3 Tube to OUTSIDE COIL SUCTION TUBE 2 to INSIDE Tube toTube INSIDE COILCOIL 1 SUCTION TUBE to to Compressor Compressor DISCHARGE TUBE from Compressor from Compressor VALVE OPERATING CONDITION DISCHARGE TUBE NORMAL FUNCTION OF VALVE 6 Cool Cool as (2) Hot as (1) *TVB T
COMPONENT TESTING Compressor Checks WARNING ELECTRIC SHOCK HAZARD Turn off electric power before installation. WARNING service or All electrical connections and wiring MUST be the National Electrical Code and all local codes which have jurisdiction. Failure to do so can result in personal injury or death. BURN HAZARD Proper safety procedures must be followed, and proper protective clothing must be worn when working with a torch.
COMPRESSOR CHECKS WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure. Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants.
COMPONENT TESTING Compressor Replacement WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Failure to do so could result in serious injury or death. WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure. Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants.
COMPONENT TESTING Compressor Replacement -Special Procedure in Case of Compressor Burnout WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure. Proper safety procedures must be followed, and proper protective clothing must be worn when working with refrigerants. Failure to follow these procedures could result in serious injury or death. 1. Recover all refrigerant and oil from the system. 2.
COMPONENTS TESTING Fan Motor A single phase permanent split capacitor motor is used to drive the evaporator blower and condenser fan. A selfresetting overload is located inside the motor to protect against high temperature and high amperage conditions. (See Figure 23) WARNING Figure 23 Blower/Fan Motor ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied.
COMPONENTS TESTING Heating Element WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. Heating Element Example Failure to do so could result in serious injury or death. Figure 708 (Heating Element) All heat pumps and electric heat models are equipped with a heating element with the exception of model KHS10A10.
COMPONENTS TESTING WARNING Testing the User Interface and Electronic Control Board ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied. If the User Interface does not turn on: 1. Make sure the unit has the proper voltage and that it is turned on. Check power at Terminals L1 and L2. (refer to Electronic Control Board Identification, Figure 712) 2.
COMPONENTS TESTING Thermistor Resistence Values (This Table Applies to All Thermistors) TEMP F -25 RESISTENCE (K Ohms) -20 -15 -10 -5 0 5 10 15 20 25 30 31 32 33 34 35 36 37 38 39 40 45 50 55 60 65 66 67 68 69 70 71 72 73 74 75 76 MIN 210.889 178.952 151.591 128.434 108.886 92.411 78.541 66.866 57.039 48.763 41.786 35.896 34.832 33.803 32.808 31.846 30.916 30.016 29.144 28.319 27.486 26.697 23.116 20.071 17.474 15.253 13.351 13.004 12.668 12.341 12.024 11.716 11.418 11.128 10.846 10.574 10.308 10.
COMPONENTS TESTING Electronic Control Board Identification USER INTERFACE AMB TEMP SENSOR ID COIL TEMP SENSOR OD COIL TEMP SENSOR DISCH AIR TEMP SENSOR HIGH PRESSURE SWITCH/JUMPER HPS LOW SPEED FAN Reversing Valve Relay FAN 1 RELAY L2 / RV2 L2 / RV2 FAN 2 RELAY MED SPEED FAN HIGH SPEED FAN RV1 HEATER RELAY FAN 3 RELAY N/L2 FAN 4 RELAY MAX SPEED FAN COOLING ONLY MODELS IF INSTALLED ON MODELS WITH HEAT THIS IS A POWER RELAY L2 HEATER POWER L1 HEATER POWER COMP RELAY HEATER RELAY N / L2 L1 (
COMPONENT TESTING Replace the Electronic Control Board CIRCUIT BOARD PIN X4 HEATER WIRES CONTROL BOARD PANEL ID COIL SENSOR (PTU 10) SUPPLY CORD RAC MASTER POWER/RELAY MODULE SMPS SCREW X5 HARNEES DISPLAY (PTU 50) TEMP SENSOR DISCH AIR (PTU 50) TEMP SENSOR AMB TEMP Figure 713 (Electronic Control Board Replacement) WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation. Extreme care must be used, if it becomes necessary to work on equipment with power applied.
TROUBLESHOOTING ROOM AIR CONDITIONER UNIT PERFORMANCE TEST DATA SHEET Cooling Sizing Guide JOB NAME______________________ TECH’S NAME_________________________ DATE___________ MODEL#_______________ SERIAL #______________________ CHECK THE INSTALLATION ACCEPTABLE NOT ACCEPTABLE YES NO IS A CHASIS GASKET INSTALLED? _____ ____ IS THE FRESH / EXHAUST AIR VENT OPEN? _____ ____ IS A FRIEDRICH SLEEVE INSTALLED? _____ ____ IS A FRIEDRICH OUTDOOR GRILLE INSTALLED? _____ ____ IS MAINTENANCE
TROUBLESHOOTING Diagnostic Codes DIAG CODE PROBLEM CONTROL BOARD'S ACTION 1 Front Panel Button Stuck For More Than 20 Seconds Continue to monitor for "OPEN" (Unstuck) switch. Do not process switch input. ENSURE FRONT COVER DOES NOT DEPRESS BUTTONS 3 Indoor Temperature Sensor is Open or Shorted Set temp to 75°F in COOLING or 68°F in HEATING. Unit continues to operate 4 Indoor Coil Temperature Sensor is Open or Shorted Control Board sets temp to a default of 40°F. Override sensor.
TROUBLESHOOTING Troubleshooting Tips Problem Unit does not operate. Unit Trips Circuit Breaker or Blows Fuses. LCDI Power Cord Trips (Reset Button Pops Out). Possible Cause The power button is off or the set point temperature is satisfied. Push the power button on and raise or lower temperature setting (as appropriate) to call for operation. The LCDI power cord is unplugged. Plug into a properly grounded 3 prong receptacle.
TROUBLESHOOTING Tips continued COMPLAINT Unit Does Not Cool/ Heat Room Sufficiently, or Cycles On And Off Too Frequently (continued). CAUSE Operating in Cooling mode while the outside temperature is below 60 °F (16 °C). Do not try to operate your air conditioner in the cooling mode when the outside temperature is below 60 °F (16 °C). The unit will not cool properly, and the unit may be damaged. The digital control is set to fan cycling mode.
TROUBLESHOOTING Tips continued COMPLAINT Fan motor does not run.
TROUBLESHOOTING Tips continued COMPLAINT Electronic control board does not turn unit off Compressor runs for short periods only.
TROUBLESHOOTING Tips continued COMPLAINT Water “spitting” into room Excessive moisture Unit short cycles Prolonged off cycles Outside water leaks 75 CAUSE SOLUTION Sublimation: When unconditioned saturated, outside air mixes with conditioned air, condensation forms on the cooler surfaces Ensure that foam gaskets are installed in between window panes & in between the unit & the sleeve.
TROUBLESHOOTING Cool with Heat Units COMPLAINT Room temperature uneven (Heating cycle) Does not heat adequately Unit cools when heat is called for Cooling adequate, but heating insufficient 76 CAUSE SOLUTION Bad indoor ambient thermistor Check diagnostic codes. Check Thermistors. Replace as needed. Fan speed too low Set at higher fan speed. Exhaust or fresh air door open Check if operating properly.
TROUBLESHOOTING HEAT PUMP ROOM AIR CONDITIONERS: TROUBLE SHOOTING TIPS REFRIGERANT SYSTEM DIAGNOSIS - HEATING CYCLE LOW SUCTION PRESSURE HIGH SUCTION PRESSURE LOW HEAD PRESSURE HIGH HEAD PRESSURE Low Airflow Across Outdoor Coil Outdoor Ambient Too High for Operation in Heating Refrigerant System Restriction Outdoor Ambient Too High For Operation In Heating Refrigerant System Restriction Reversing Valve not Fully Seated Reversing Valve not Fully Seated Low Airflow Across Indoor Coil Undercharged
AIR CONDITIONERS: TROUBLE SHOOTING TIPS REFRIGERANT SYSTEM DIAGNOSIS – COOLING CYCLE LOW SUCTION PRESSURE HIGH SUCTION PRESSURE LOW HEAD PRESSURE HIGH HEAD PRESSURE Low Load Condi�ons High Load Conditions Low Load Condi�ons High Load Conditions Low Air Flow Across Indoor Coil High Air Flow Across Indoor Coil Refrigerant System Restriction Low Airflow Across Outdoor Coil Refrigerant System Restriction Reversing Valve not Fully Seated Reversing Valve not Fully Seated Overcharged Undercharged O
AMBIENT AIR (BLACK) DISHCHARGE AIR (WHITE) (BLUE) (YELLOW) COLOR OUTDOOR COIL INDOOR COIL SENSORS TABLE 1 TERMINAL DETAIL COMPRESSOR -F- S -F- -F- Figure 801 (Wiring Diagrams) BLUE RED RED BLACK C R BLUE OLP JUMPER IF REQ'D BLACK c WHITE COMPRESSOR WIRING NOTE: COMPRESSOR COMMON-START- RUN TERMINAL POSITION COULD VARY. WIRING SHOWN IS FOR OPERATOR INFORMATIONAL POINT TO POINT WIRING PURPOSES.
SENSORS COLOR (BLUE) (BLACK) (WHITE) DISHCHARGE AIR AMBIENT AIR (YELLOW) OUTDOOR COIL INDOOR COIL Table 1 HARNESS COMPR WIRE COMPRESSOR -F- S -F- -F- Figure 802 (Wiring Diagrams) BLUE RED RED BLACK R C BLACK c WHITE TO DISPLAY BROWN WHITE RED BLUE BLACK BLACK BLUE RED HPS DISCH AIR TEMP SENSOR OD COIL TEMP SENSOR ID COIL TEMP SENSOR AMB TEMP SENSOR FOR SENSOR CONNECTIONS SEE TABLE 1 FOR COLOR CODE PIN CONNECTIONS H ER M BLUE OLP JUMPER IF REQ'D COMPRESSOR WIRING NOTE
(BLACK) (WHITE) AMBIENT AIR (BLUE) (YELLOW) COLOR DISHCHARGE AIR OUTDOOR COIL INDOOR COIL SENSORS Table 1 TERMINAL DETAIL .
(BLUE) (BLACK) (WHITE) DISHCHARGE AIR AMBIENT AIR (YELLOW) COLOR OUTDOOR COIL INDOOR COIL SENSORS Table 1 TERMINAL DETAIL HARNESS COMPR WIRE COMPRESSOR -F- S -F- RED BLACK C R BLUE OLP JUMPER IF REQ'D Figure 804 (Wiring Diagrams) BLUE RED BLACK BLACK -F- BLUE WHITE PTCR RELAY SSR c BLUE WHITE TO DISPLAY BROWN YELLOW WHITE RED BLUE BLACK WHITE FAN 4 RELAY WHITE COMP RELAY FAN 3 RELAY FAN 2 RELAY FAN 1 RELAY BLACK BLUE RED HPS DISCH AIR TEMP SENSOR OD COIL TEMP
(BLUE) (BLACK) (WHITE) DISHCHARGE AIR AMBIENT AIR (YELLOW) INDOOR COIL OUTDOOR COIL COLOR CODE SENSORS Table 1 TERMINAL DETAIL 3.3 KW ELEMENT COLD RESISTANCE READING OF 14.
(BLUE) (BLACK) (WHITE) DISHCHARGE AIR AMBIENT AIR (YELLOW) COLOR OUTDOOR COIL INDOOR COIL SENSORS Table 1 TERMINAL DETAIL 5.2 KW ELEMENT COLD RESISTANCE READING 9.
Figure 807 (Wiring Diagrams) (WHITE) (BLACK) DISHCHARGE AIR AMBIENT AIR (BLUE) (YELLOW) COLOR OUTDOOR COIL INDOOR COIL SENSORS Table 1 POWER CORD HARNESS COMPR WIRE S -F- RED BLACK C R BLUE TO CHASSIS GREEN TERMINAL DETAIL COMPRESSOR -F- RED WHITE BLACK -F- BLUE BLUE WHITE PTCR BLACK RELAY SSR c WHITE YELLOW RED BLUE BLACK WHITE WHITE WHITE BLACK BLUE RED HPS HIGH PRESSURE SWITCH/JUMPER DISCH AIR TEMP SENSOR OD COIL TEMP SENSOR ID COIL TEMP SENSOR TO DISPLAY
(WHITE) DISHCHARGE AIR AMBIENT AIR (BLUE) (BLACK) (YELLOW) COLOR OUTDOOR COIL INDOOR COIL SENSORS Table 1 TERMINAL DETAIL HARNESS COMPR WIRE COMPRESSOR -F- S -F- -F- BLUE RED RED BLACK R C BLACK c WHITE TO DISPLAY CAP WHITE RED ORANGE BLUE BLACK BLACK BLUE ORANGE HPS DISCH AIR TEMP SENSOR OD COIL TEMP SENSOR ID COIL TEMP SENSOR AMB TEMP SENSOR BROWN H ER M BLUE OLP JUMPER IF REQ'D COMPRESSOR WIRING NOTE: COMPRESSOR COMMON-START- RUN TERMINAL POSITION COULD VARY.
(WHITE) (BLACK) DISHCHARGE AIR AMBIENT AIR (BLUE) (YELLOW) COLOR OUTDOOR COIL INDOOR COIL SENSORS Table 1 TERMINAL DETAIL HEATER KHM18A34 5.2 KW HEATING ELEMENT 9.15 OHMS COLD RESISTENECE KHS12A33 3.3 KW HEATING ELEMENT 14.
(BLUE) (BLACK) (WHITE) DISHCHARGE AIR AMBIENT AIR (YELLOW) COLOR OUTDOOR COIL INDOOR COIL SENSORS Table 1 POWER CORD HARNESS COMPR WIRE Figure 810 (Wiring Diagrams) S -F- RED BLACK C R BLUE TO CHASSIS GREEN TERMINAL DETAIL COMPRESSOR -F- RED WHITE BLACK -F- BLUE BLACK WHITE RELAY SSR c BROWN RED BLUE BLACK WHITE BLACK BLUE RED HPS DISCH AIR TEMP SENSOR HIGH PRESSURE SWITCH/JUMPER OD COIL TEMP SENSOR ID COIL TEMP SENSOR TO DISPLAY COMP RELAY FAN 3 RELAY FAN 2 REL
PARTS CATALOG Introduction This illustrated part catalog has been written to help assist the technician to quickly locate the parts that he or she needs to make a repair. The catalog is broken down into different figures which represent different modules of the air conditioning unit. For example; the chassis, refrigeration system, blower system, or electrical controls. Each figure contains an illustration(s) containing item numbers and a corresponding item list.
PARTS CATALOG WIRING DIAGRAM LABEL Detail B 5 10 15 25 Detail A Figure 902 20 30 15 65 70 50 Detail A FIgure 901 (Exterior Items) 90 Detail B 60
PARTS CATALOG FIGURE 901 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL *5 62400134 TOOL ALL 1 *10 60301802 CLIP,TOOL ALL 1 15 61825732 KIT OUTER SHELL WITH HONEYCOMB, SML KCS08A10A, KCS10A10A, KCS12A10A, KCS14A10A, KCS12A30A, KCS16A30A, KES12A33A, KES16A33A, KHS12A33A, KHS10A10A 1 15 61825733 KIT OUTER SHELL WITH HONEYCOMB, MED KCM18A30A, KCM21A30A, KEM18A34A, KHM18A34A 1 15 61825731 KIT OUTER SHELL WITH HONEYCOMB, LRG KCL24A30A, KCL24A30B,KCL28A30A, KEL36A35A, KCL36A30A, KEL24A
PARTS CATALOG 5 10 30 15 20 40 Figure 904 Figure 905 25 35 45 Figure 903 50 FIgure 902 (Interface and Panels) 92
PARTS CATALOG FIGURE 902 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL *5 61906700 COVER TOP, SM/MED KCS08A10A, KCS10A10A, KCS12A10A, KCS14A10A, KCS12A30A, KCS16A30A, KES12A33A, KES16A33A, KHS12A33A, KHS10A10A, KCM18A30A, KCM21A30A, KEM18A34A, KHM18A34A 1 *5 61906600 COVER TOP, LRG KCL24A30A, KCL24A30B, KCL28A30A, KEL36A35A, KCL36A30A, KEL24A35A, KEL24A35B, KHL24A35A 1 *10 61816701 INSUL TOP COVER, S/M KCS08A10A, KCS10A10A, KCS12A10A, KCS14A10A, KCS12A30A, KCS16A30A, KES12A33A, KES16A33A,
PARTS CATALOG Condenser coil (5) and evaporator coil (10)may vary by model sub-revision verify the entire model number as shown on nameplate before ordering the part.
PARTS CATALOG ITEM 95 PART NUMBER FIGURE 903 PART DESCRIPTION USED ON MODEL QTY 5 61600284 CONDENSER COIL SCS.312X2X18RC2E45A21X15H6 KHS12A33A 1 5 61850039 CONDENSER COIL LCS.312X4X16XC9N45A23X19H3 KCL28A30A 1 5 61850043 CONDENSER COIL LCS.312X3X16RC2N45A23X19H3 KCL24A30A, KCL24A30B, KEL24A35A, KEL24A35B 1 5 61850049 CONDENSER COIL LCS.312X3X16RC2N45A23X19H3 KHL24A35A 1 5 61850254 CONDENSER COIL MC .312X4X16RC2V45A21X17H0 KHM18A34A 1 5 61850255 CONDENSER COIL MC .
PARTS CATALOG ITEM 96 PART NUMBER PART DESCRIPTION FIGURE 903 USED ON MODEL QTY 10 61896317 COIL SCS.5MMX4X18RC9K45A21X15 KCS16A30A-E, KES16A33A-E H61EA104061850353COIL 1 10 61850168 EVAPORATOR COIL MES.312X4X16RC2V45A18X13H6 KCM18A30A, KCM21A30A, KEM18A34A 1 10 61896305 EVAPORATOR OIL LES.
PARTS CATALOG ITEM 97 PART NUMBER FIGURE 903 PART DESCRIPTION USED ON MODEL QTY *45 61803470 ASSY BSPAN S/M "Y" BOLT W/DRN NGT KES12A33A, KHS12A33A 1 *45 61803471 ASSY BSPAN S/M "Y" BOLT NGT KCS08A10A, KCS10A10A, KCS12A10A, KCS12A30A, KCS14A10A, KCS16A30A, KCM18A30A, KCM21A30A, KEM18A34A 1 *45 61803473 ASSY BSPAN S/M "Z" BOLT W/ DRAIN NGT KES16A33A, KHM18A34A, KHS10A10A 1 *45 61809522 ASSY BSPAN LRG "W" BOLT NGT KCL28A30A, KCL24A30A, KCL24A30B, KCL36A30A, KEL36A35A 1 *45 61809523
PARTS CATALOG ITEM PART DESCRIPTION USED ON MODEL QTY 75 TBD CAP TUBE ASSY KIT (INCLUDES CAP TUBE ASSY (PN 61989527), STRAINER, AND STRAINER HOLDER” KCS12A10A-D 1 75 67000191 CAP TUBE ASSY KIT (INCLUDES CAP TUBE ASSY (PN 61943714), STRAINER, AND STRAINER HOLDER" KCM14A10A 1 75 67000192 CAP TUBE ASSY KIT (INCLUDES CAP TUBE ASSY (PN 61917306), STRAINER, AND STRAINER HOLDER" KCS08A10A 1 75 67000193 CAP TUBE ASSY KIT (INCLUDES CAP TUBE ASSY (PN 61918609), STRAINER, AND STRAINER HOLDER" KCS
PARTS CATALOG ITEM PART NUMBER FIGURE 903 PART DESCRIPTION USED ON MODEL 75 67000199 CHECK VALVE AND CAP TUBE ASSY KIT (INCLUDES CHECK VALVE AND CAP TUBE ASSY (PN 61939507), 2 STRAINERS, AND STRAINER HOLDER" KHL24A35A 1 75 67000200 CHECK VALVE AND CAP TUBE ASSY KIT (INCLUDES CHECK VALVE AND CAP TUBE ASSY (PN 61939510), 2 STRAINERS, AND STRAINER HOLDER" KHM18A34A 1 75 67000201 CHECK VALVE AND CAP TUBE ASSY KIT (INCLUDES CHECK VALVE AND CAP TUBE ASSY (PN 61865314), 2 STRAINERS, AND STRAINER H
PARTS CATALOG 75 70 65 50 40 35 20 60 15 45 30 5 25 10 FIgure 904 (Blower Module) 100 55
PARTS CATALOG FIGURE 904 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL 5 61878610 HEATER 3.3 KW @ 230V (NXT WIRE) KES12A33A, KES16A33A, KHS12A33A 1 5 61878611 HEATER 4.0 KW @ 230V (NXT WIRE) KEM18A34A, KHM18A34A 1 5 61878612 HEATER 5.
PARTS CATALOG FIGURE 904 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL *45 61907212 ASSY INNERWALL, MED 2 BRCE KCM18A30A, KCM21A30A, KEM18A34A, KHM18A34A 1 *45 61907111 ASSY INNERWALL, LRG 2 BRCE KCL24A30A, KCL24A30B, KCL24A30B, KCL28A30,A KEL36A35A, KCL36A30A, KEL24A35A, KEL24A35B, KHL24A35A 1 50 61821500 ASSY DOOR/SLIDE, SML/MED/LRG ALL 1 55 61871400 MTR 1/3 4 6P CCW 2 PSC 7.
PARTS CATALOG DETAIL A 25 PIN 10 5 35 30 15 45 20 DETAIL B 50 40 55 Detail B Detail A FIgure 905 (Electrical Components) 103 60
PARTS CATALOG FIGURE 905 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL QTY 5 61807263 BOX, PANEL CONTROL ALL 1 10 61807264 BRACKE MOUNTING PCB ALL 1 15 67000178 ELECTRONIC CONTROL BOARD KIT RAC MASTER POWER/RELAY MODULE SMPS - 3SP/COOL/EH (PN 62603071) Pin, circuit board 4 EA (PN 61600527) KEL24A35A, KEL24A35B, KEM18A34A, KES12A33A, KES16A33A 1 15 67000179 ELECTRONIC CONTROL BOARD KIT RAC MASTER POWER/RELAY MODULE SMPS - 4SP/COOL (PN 62603072) Pin, circuit board 4 EA (PN 61600527) K
FIGURE 905 ITEM 105 PART NUMBER PART DESCRIPTION USED ON MODEL QTY 15 67000184 ELECTRONIC CONTROL BOARD KIT RAC MASTER POWER/RELAY MODULE SMPS - 3SP/COOL/ EH/5WIRE (PN 62603077) Pin, circuit board 4 EA (PN 61600527) KEL36A35A 1 20 60500390 SUPPLY CORD 15A 125V 14AWG 90DEG EL KCS08A10A, KCS10A10A, KCS12A10A, KCS14A10A, KHS10A10A 1 20 60500394 SUPPLY CORD 13A 250V 16AWG 90DEG EL KCS12A30A, KCS16A30A, KCM18A30A, KCM21A30A 1 20 60500398 SUPPLY CORD 20A 250V 12AWG 90DEG EL KCL24A30A, KCL2
FIGURE 905 ITEM PART NUMBER PART DESCRIPTION USED ON MODEL 40 61080600 CAPCTR 40/5 MF 450V 2.0 KEM18A34A, KCS16A30A, KCM18A30A, KCM21A30A, KES16A33A 1 40 61080601 CAPCTR 40/5 MF 450V 2.0 KCL28A30A 1 40 61080602 CAPCTR 50/20 MF 400V 2.
AVAILABLE ACCESSORIES Premium Carbon Filters Remove odors and VOCs (volatile organic compounds). Achieve up to a MERV 6 rating when used with standard filter. 3 pack Model Kit No. KCQ and KEQ KWCFQ KCS, KES and KHS KWCFS KCM, KEM and KHM KWCFM KCL, KEL and KHL KWCFL Window Mounting Kits: Kühl+ Window kits are included with cooling only models, but are an accessory item for Kühl+ heat/cool models. Window kits are required for installation of Kühl+ models in a window. Heat/Cool Models Kit No.
Friedrich Air Conditioning Company 10001 Reunion Place, Suite 500 San Antonio, TX 78216 800-541-6645 www.friedrich.com KUHL® 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.
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CUSTOMER SATISFACTION and QUALITY ASSURANCE Friedrich is a conscientious manufacturer, concerned about customer satisfaction, product quality, and controlling warranty costs. As an Authorized Service Provider you play a vital role in these areas. By adhering to the policies and procedures you provide us with vital information on each warranty repair you complete.
