Friedrich YM18N34, SS12N10, SS12N30, SL36N30, EL36N35 User Manual

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SYSTEM FAN MODE

SCHEDULEFAN SPEED

AUTO

AUTO CONTINUOUS

°F°C

2012 Service/Parts Manual

93001402_00

Service Manual

Room Air Conditioners

AUTO FAN CONTINUOUS

AUTO

SYSTEM

FAN MODE

POWER

FAN SPEED

SCHEDULE

Standard Chassis Models

Cool Only

115 -Volt:

115-Volt:

208-230-Volt:

Cool

208-230-Volt: ES12N33*, ES15N33*, EM18N34*, EM24N34*, EL36N35*

208-230-Volt:

Electric Heat

208-230-Volt: YS12N33*, YM18N34*, YL24N35*

208-230-Volt:

Heat Pump

115 -Volt:

115-Volt: YS10N10*

Kuhl-Serv/PartsMan (9-12) *Last character may vary

SS08N10*, SS10N10*, SS12N10*, SS14N10*, SM15N10*

SS08M10, SS10M10, SS12M10, SS14M10

SS12N30*, SS15N30*, SM18N30*, SM21N30*

SS12M30, SS15M30, SM18M30, SM21M30

SM24N30*,SL22N30*, SL24N30*, SL28N30*, SL36N30*

Cool with Electric Heat

Heat Pump with Electric Heat

Heat Pump

Table Of Contents

Important Safety Information ..................................................................................................................................... 2-4

Introduction ................................................................................................................................................................... 5

Model and Serial Number Location .............................................................................................................................. 5

Unit Identication .......................................................................................................................................................... 6

Performance Data and Specications .......................................................................................................................... 7

Installation Information/Sleeve Dimensions/Circuit Rating ........................................................................................... 8

Electrical Data ............................................................................................................................................................... 9

Before Operating the Unit ............................................................................................................................................10

Kuhl Control Options ....................................................................................................................................................11

Control Panel and Display Identication ......................................................................................................................12

Control Panel Operation Instructions ......................................................................................................................13-19

Remote Control Operation ...................................................................................................................................... 20-21

Unit Operation ............................................................................................................................................................ 22

Electronic Control Sequence of Operation ............................................................................................................ 23-27

Fan Operation ............................................................................................................................................................. 28

Removing the Front Cover and Unit Chassis ................................................................................................................ 29

Replacing the ID Coil Thermistor ................................................................................................................................ 30

Replacing the Control Board ....................................................................................................................................... 30

Airow Selection and Adjustment ............................................................................................................................... 31

Components Testing .............................................................................................................................................. 32-33

Testing the User Interface and Control Board ........................................................................................................... 34

Refrigeration Sequence of Operation .......................................................................................................................... 35

R410A Sealed System Repair Considerations ........................................................................................................... 36

Sealed Refrigeration System Repairs .................................................................................................................... 37-40

Hermetics Components Check ................................................................................................................................... 41

Reversing Valve Description/Operation ...................................................................................................................... 42

Testing the Coil ........................................................................................................................................................... 43

Checking the Reversing Valve ............................................................................................................................... 43-44

Compressor Checks .............................................................................................................................................. 45-46

Compressor Replacement ..................................................................................................................................... 47-48

Routine Maintenance ............................................................................................................................................. 49-52

Service and Assistance/Avalaible Accessories .......................................................................................................... 53

How to Check and Erase the Diagnostic Codes ........................................................................................................... 54

Error Codes and Alarm Status .................................................................................................................................... 55

Test Mode ................................................................................................................................................................... 56

Thermistors' Resistance Values .................................................................................................................................. 57

Performance Test Data Sheet ..................................................................................................................................... 58

Troubleshooting ..................................................................................................................................................... 59-68

Electronic Control Board Components Identication & Thermistor Voltage ................................................................... 69

Electronic Control Conguration Instructions .............................................................................................................. 70

Wiring Diagrams .................................................................................................................................................... 71-79

Remote Control Replacement Instructions ........................................................................................................... 80-81

User Interface Service Kit ........................................................................................................................................... 82

Parts Section ......................................................................................................................................................... 83-90

Addendum 1 ............................................................................................................................................................... 91

Warranty ...................................................................................................................................................................... 92

Authorized Parts Depots .............................................................................................................................................. 93

Technical Support Contact Information.........................................................................................................................93

IMPORTANT SAFETY INFORMATION

The information contained in this manual is intended for use by a qualied service 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.

Installation or repairs made by unqualied persons can result in subjecting the unqualied person making such repairs as well as the persons being served by the equipment to hazards resulting in injury or electrical shock which can be serious or even fatal.

Safety warnings have been placed throughout this manual to alert you to potential hazards that may be encountered. If you install or perform service on equipment, it is your responsibility to read and obey these warnings to guard against any bodily injury or property damage which may result to you or others.

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.

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:

WARNING

CAUTION

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.

NOTICE

You can be killed or seriously injured if you do not follow instructions.

You can receive minor or moderate injury if you do not follow instructions.

A message to alert you of potential property damage will have the

word “NOTICE”. Potential property damage can occur if instructions

are not followed.

PERSONAL INJURY OR DEATH HAZARDS

ELECTRICAL HAZARDS:

• Unplug and/or disconnect all electrical power to the unit before performing inspections, maintenance, or service.

• Make sure to follow proper lockout/tag out procedures.

• Always work in the company of a qualied assistant if possible.

• Capacitors, even when disconnected from the electrical power source, retain an electrical charge

potential capable of causing electric shock or electrocution.

• Handle, discharge, and test capacitors according to safe, established, standards, and approved procedures.

• Extreme care, proper judgment, and safety procedures must be exercised if it becomes necessary to test or troubleshoot equipment with the power on to the unit.

• Do not spray or pour water on the return air grille, discharge air grille, evaporator coil, control panel, and sleeve on the room side of the air conditioning unit while cleaning.

• Electrical component malfunction caused by water could result in electric shock or other electrically unsafe conditions when the power is restored and the unit is turned on, even after the exterior is dry.

• Never operate the A/C unit with wet hands.

• Use air conditioner on a single dedicated circuit within the specied amperage rating.

• Use on a properly grounded outlet only.

• Do not remove ground prong of plug.

• Do not cut or modify the power supply cord.

• Do not use extension cords with the unit.

• Follow all safety precautions and use proper and adequate protective safety aids such as: gloves, goggles, clothing, adequately insulated tools, and testing equipment etc.

• Failure to follow proper safety procedures and/or these warnings can result in serious injury or death.

REFRIGERATION SYSTEM REPAIR HAZARDS:

• Use approved standard refrigerant recovering procedures and equipment to relieve 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 ame or hot

surfaces can cause serious burns.

• Make sure to protect personal and surrounding property with re proof materials.

• Have a re extinguisher at hand while using a torch.

• Provide adequate ventilation to vent off toxic fumes, and work with a qualied assistant whenever

possible.

• Always use a pressure regulator when using dry nitrogen to test the sealed refrigeration system for leaks, ushing etc.

• Make sure to follow all safety precautions and to use proper protective safety aids such as: gloves, safety glasses, clothing etc.

• Failure to follow proper safety procedures and/or these warnings can result in serious injury or death.

MECHANICAL HAZARDS:

• Extreme care, proper judgment and all safety procedures must be followed when testing, troubleshooting, handling, or working around unit with moving and/or rotating parts.

• Be careful when, handling and working around exposed edges and corners of the sleeve, chassis, and other unit components especially the sharp ns of the indoor and outdoor coils.

• Use proper and adequate protective aids such as: gloves, clothing, safety glasses etc.

• Failure to follow proper safety procedures and/or these warnings can result in serious injury or death.

PROPERTY DAMAGE HAZARDS

FIRE DAMAGE HAZARDS:

• Read the Installation/Operation Manual for the air conditioning unit prior to operating.

• Use air conditioner on a single dedicated circuit within the specied amperage rating.

• Connect to a properly grounded outlet only.

• Do not remove ground prong of plug.

• Do not cut or modify the power supply cord.

• Do not use extension cords with the unit.

• Be extremely careful when using acetylene torch and protect surrounding property.

• Failure to follow these instructions can result in re and minor to serious property damage.

WATER DAMAGE HAZARDS:

• Improper installation, maintenance or servicing of the air conditioner unit can result in water damage

to personal items or property.

• Insure that the unit has a sufcient pitch to the outside to allow water to drain from the unit.

• Do not drill holes in the bottom of the drain pan or the underside of the unit.

• Failure to follow these instructions can result in damage to the unit and/or minor to serious property

damage.

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 RAC (Room Air Conditioner) service technician to quickly

and accurately diagnose and repair malfunctions.

This manual will deal with subjects in a general nature.

COMPONENTS IDENTIFICATION

Accumulator

Compressor

Outdoor Grille

Discharge Air

Fresh Air Vent

Reversing Valve

Evaporator Coil

Shroud brace

Condense/Fan Shroud

Condenser Coil

Electronic Control

Board

Control Key Pad

Support Bar

Blower Wheel

Air Intake From

Sides and Bottom

Control Key Pad

(User Interface)

IMPORTANT: It will be necessary for you to accurately identify the unit you are servicing, so you can be certain of a proper diagnosis and repair (See Unit Identication code on page 6).

Chassis Pull

Out Handle

Fan/Blower Motor

Base Pan

Sleeve

Air Intake Vents

Fan Blade

MODEL AND SERIAL NUMBER LOCATION

Model information can be found on the name plate behind the front cover.

For your future convenience, record the model information here.

MODEL NUMBER

SERIAL NUMBER

PURCHASE DATE

UNIT IDENTIFICATION

COOLING

VOLTS 115

MODEL NUMBER

HEATING

REFRIGERANT

XXXXXXXXX

XXXXXXXXXX

FUSE PROTECTED

U L

BTH/HR 6500

60 HZ / 1 PH

YS10M10A

BTH/HR 6500

30.1 OZ R410A

600 PSIG HS

XXXXXXXXX

CIRCUITS USE 15A

AIR CONDITIONING CO.

VOLTS MIN 108

SERIAL NUMBER

SAN ANTONIO, TEXAS

LICY00008

ASSEMBLED IN MEXICO

X XX

EER 12.0

EER 10.4

300 PSIG LS

XXXXXXXXXX

TIME DELAY FUSE

XXXXX

AMPS 8.0

AMPS 7.0

XXXXXXXXXX

Model Number Code

MODEL NUMBER YS10M10A

AIR CONDITIONING CO.

SERIAL NUMBER

SAN ANTONIO, TEXAS

LICY00008

ASSEMBLED IN MEXICO

1st Digit – Function

S = Straight Cool, Value Series

Y = Heat Pump E = Electric Heat

2nd Digit

S = Small Chassis M = Medium Chassis L = Large Chassis

3rd and 4th Digit - Approximate BTU/HR in 1000s (Cooling)

Heating BTU/Hr capacity listed in the

Specication/Performance Data Section

S S 08 M 1 0 B A

9th Digit, Engineering Sufx

Major modication Subject to change

8th Digit, Marketing Sufx

Indicates modication Subject to change

7th Digit – Options

0 = Straight Cool &

Heat Pump Models

3 = 3 KW Heat Strip, Nominal 4 = 4 KW Heat Strip, Nominal 5 = 5 KW Heat Strip, Nominal

6th Digit – Voltage

1 = 115 Volts 3 = 230-208 Volts

5th Digit

Alphabetical Modier

RAC Serial Number Identication Guide

Serial Number Decade Manufactured

L=0 C=3 F=6 J=9 A=1 D=4 G=7

B=2 E=5 H=8

Year Manufactured

A=1 D=4 G=7 K=0

B=2 E=5 H=8

C=3 F=6 J=9

Month Manufactured

A=Jan D=Apr G=Jul K=Oct

B=Feb E=May H=Aug L=Nov

C=Mar F=Jun J=Sept M=Dec

A B A R 00001

Production Run Number

Product Line R = RAC

LISTED

REFRIGERATION SYSTEM PERFORMANCE DATA

COOLING

PERFORMANCE

DATA*

SS08N10-A 54 26 114 153 65 7 19 151 400 6.1 32.0 26.0 115 15 YS10N10-A 59 21 115 155 67 12 14 147 395 7.8 7.6 50.0 26.5 115 15 SS10N10-A 54 26 114 157 68 16 17 137 392 7.7 50.0 27.0 115 15 SS12N10-A 56 24 119 170 60 14 25 135 423 10.0 55.0 30.0 115 15 SS14N10-A 55 25 120 171 62 14 23 141 390 12.0 63.0 31.0 115 15 SS12N30-A 47 33 114 155 58 10 18 134 393 4.8 30.0 31.5 230/208v 15

YS12N30-A 61 19 118 169 69 18 21 137 413 5.2 26.0 32.0 230/208v 20 SS15N30-A 54 26 119 174 59 12 34 127 420 6.4 32.0 33.5 230/208v 15 ES15N33-A 54 26 119 174 59 12 34 127 420 6.4 16.0 32.0 33.5 230/208v 20

SM15N10-A 55 25 118 153 58 10 18 140 410 12. SM18N30-A 57 23 120 169 61 14 22 136 422 7.4 42.0 39.5 230/208v 15

SM21N30-A 60 20 123 175 65 10 20 130 448 9.4 46.0 40.0 230/208v 15 SM24N30-A 45 35 127 175 50 10 28 119 457 11.2 60.5 43.6 230/208v 20 EM24N34-A 45 35 127 175 50 10 28 119 457 11.2 19.5 60.5 43.5 230/208v 30 YL24N35-A 58 22 119 174 64 22 20 124 417 11.1 12.2 47.0 73.0 230/208v 30 SL22N30-A 54 26 119 159 59 10 20 139 409 9.4 48.0 57.0 230/208v 15 SL24N30-A 54 26 123 163 58 16 19 132 435 11.2 47.0 69.0 230/208v 20 SL28N30-A 54 26 122 173 60 11 26 139 445 12.7 60.0 70.5 230/208v 20 SL36N30-A 52 28 130 190 56 13 33 126 480 18.0 88.0 72.0 230/208v 30 EL36N35-A 52 28 130 190 56 13 33 126 480 18.0 24.0 88.0 72.0 230/208v 30

EVAP. AIR TEMP. DEG.

Discharge Air

Temp.

Drop F.

CONDENSER TEMP DEG. F

Discharge

120 169 61 14 22 136 422 7.4 42.0 39.5 230/208v 30

Temp

Suction

Temp

Super Heat

Sub-

Cooling

OPERATING

PRESSURES

Suction Discharge

ELECTRICAL RATINGS

Amps

Cool

6 63.0 37.0 115 15

Locked Rotor

Amps

Heat

16.0ES12N33-A 47 33 114 155 58 10 18 135 393 4.8 30.0 31.5 230/208v 20

19.5EM18N34-A 57 23

8.5YM18N34-A 48 32 118 169 53 10 21 126 413 8.5 44.0 40.0 230/208v 30

Amps

5.6

R-410A

REF.

Charge in

OZ.

*Rating Conditions: 80 degrees F, room air temp. & 50% relative humidity, with 95 degree F, outside air temp & 40% relative humidity, all systems use R-410A. Test done at highest unit fan speed.

Voltage

BREAKER

60 Hertz

FUSE

Amps

SPECIFICATIONS

Energy

Volts

MODEL Cooling Btu Heating Btu

Kühl

SS08N10 7900 - 115 6.1 677 - - 11.7 $54 - 1.0 265 S 99 121

SS10N10 9500 - 115 7.7 848 - - 11.2 $67 - 2.0 260 S 106 136

SS12N10 12000 - 115 10.0 1111 - - 10.8 $88 - 3.0 300 S 112 136

SS14N10 14000 - 115 12.0 1444 - - 9.7 $115 - 3.5 325 S 116 133

SS12N30 11500/11200 - 230/208 4.8/4.9 1055/1027 - - 10.9/10.9 $84 - 2.8 275 S 112 134

SS15N30 14500/14300 - 230/208 6.4/6.8 1480/1459 - - 9.8/9.8 $112 - 3.5 360 S 116 136

SM15N10 14800 - 115 12.0 1358 - - 10.9 $109 - 3.5 360 M 141 154

SM18N30 17500/17200 - 230/208 7.4/8.0 1635/1607 - - 10.7/10.7 $131 - 4.6 350 M 140 158

SM21N30 20500/20000 - 230/208 9.4/10.3 2181/2128 - - 9.4/9.4 $173 - 6.0 425 M 132 153

SM24N30 22300/22000 - 230/208 11.2/11.9 2590/2550 - - 8.6/8.6 $206 - 10.0 390 M 152 167

SL22N30 21000/20500 - 230/208 9.6/10.2 2188/2092 - - 9.6/9.8 $174 - 6.0 625 L 191 212

SL24N30 24000/23800 - 230/208 11.2/12.0 2553/2532 - - 9.4/9.4 $207 - 7.0 640 L 192 213

SL28N30 27500/27000 - 230/208 13.5/14.4 2926/2872 - - 9.4/9.4 $229 - 8.5 600 L 193 214

SL36N30 36000/35700 - 230/208 19.0/20.5 4235/4200 - - 8.5/8.5 $338 - 12.0 725 L 212 227

+ Heat Pump

Kühl

YS10N10* 9400 7500 115 7.8 855 7.6 743 11.0 $68 3.0 1.9 285 S 109 131

YS12N33 11500/11300 9400/9000 230/208 5.2/5.4 1095/1076 5.6/5.8 1132/1139 10.5/10.5 $87 2.4/2.3 3.0 265 S 115 136

YM18N34 18200/17800 17900/17700 230/208 8.5/8.9 1808/1788 8.5/8.7 1833/1761 9.9/9.9 $147 2.5/2.6 5.4 370 M 141 152

YL24N35 23500/23000 23500/23000 230/208 11.1/12.0 2500/2447 12.2/14.3 2610/2575 9.4/9.4 $199 2.6/2.6 7.0 600 L 197 212

Kühl

+ Electric Heat

ES12N33 11500/11200 10700/8900 230/208 4.8/4.9 1055/1027 16.0/14.7 3500/2900 10.9/10.9 $84 - 2.8 275 S 113 128

ES15N33 14500/14300 10700/8900 230/208 6.4/6.8 1480/1459 16.0/14.7 3500/2900 9.8/9.8 $112 - 3.5 360 S 117 133

EM18N34 17500/17200 13000/10600 230/208 7.4/8.0 2590/2550 19.5/17.

EM24N34 22300/22000 13000/10600 230/208 11.2/11.9 2590/2550 19.5/17.0 4200/3500 8.6/8.6 $207 - 10.0 390 M 153 166

EL36N35 36000/35700 17300/14300 230/208 19.0/20.5 4235/4200 24.0/22.4 5500/4650 8.5/8.5 $338 - 12.0 725 L 213 225

* Operates on 115 volt and is not equipped with supplemental heat. Will not provide heat at temperatures below 40°F. Friedrich room air conditioners are designed to operate in outdoor temperatures from 60°

Kühl+ Heat Pump heating information (shown in red) indicates heat pump per formance. Kühl+ and Chill+ Electric Heat heating information

(shown in red) indicates electric heat strip performance. For Kühl+ Heat Pump electric heating performance

Electric Heat model.

As an ENERGY STAR ENERGY STAR

partner, Friedrich Air Conditioning Co. has determined that the selected ENERGY STAR® models meet the

Rated

Cooling

Amps

Cooling

Watts

Heating

Amps

Heating

Watts

0 4200/3500 8.6/8.6 $131 - 4.6 350 M 141 158

F to 115° F.

Ratio

Estimated

Yearly

Operating

EER

Cost COP

refer to corresponding Kühl+

ENERGY STAR

Moisture

Removal -

Pints/HR CFM Sleeve

All models use

environmentally

friendly R-410A

models

Net WtShip

R-410A

refrigerant.

Wt.

Estimated yearly operating cost based on a 2007 national average electricity cost of 10.65 cents per kWh.

Installation Information / Sleeve Dimensions

Sleeve

Height Width

Depth

with Front

Shell Depth to

Louvers

Minimum

Extension

Into Room*

Minimum

Extension

Outside*

Window Width

Thru-the-wall Installation

Finished Hole

Minimum** Maximum Height Width Max. Depth

S 15

/16

" 25

/16

" 29"

¾"

¾”

/16

” 27

" 42 " 16

/16”

M 17

/16

" 25

/16

" 29"

¾"

5 ¾”

/16

” 27

" 42 " 18

/16”

”

L 20

/16"

28" 35 ½”

½"

” 18

/16

” 29

” 42" 20

" 28 ¼" 15

”

For the best cooling performance and highest energy efficiency

* Minimum ex tensions when mounted in a window.

** Minimum widths achieved using one side curtain assembly as opposed to both in a standard installation. NOTE: S,M and L sleeves may be installed in window with no side kits if properly installed.

Circuit Rating/ Breaker

Model

SS08N10, SS10N10, SS12N10 and SS14N10, SM15N10, YS10N10

SS12N30, SS15N30, SM18N30 and SM21N30, S L22N30

SM24N3 0, SL24N30,SL28N3 0, ES12N33, ES15N33, YS12N33

SL36N30, EM18N34, EM24N34, EL36N 35, YM18N34 and YL24N35

Circuit Rating

Breaker or

T-D Fuse

125V - 15A 5 - 15P 6

250V - 15A 6 - 15P 4

250V - 20A 6 - 20 P 4

250V - 30A 6 - 30P 4

Plug

Face

(NEMA#)

Power Cord

Length (f t.)

Wall Outlet

Appearance

Front

(C)

(B)

SIDE VIEW

Keep the filter clean

Make sure that your air conditioner is always in top performing condition

.ylralugerretlifehtgninaelcyb

Provide good air flow

Make sure the airflow 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. Airflow is critical to good operation. It is just as important on the outside

.dekcolbtonsiroiretxetinuehtdnuorawolfriaehttahtgnidliubehtfo

Unit placement

If your air conditioner can be placed in a window or wall that is shaded by a tree

Insulation

Good insulation will be a big help in maintaining desirable comfort levels. Doors should have weather stri

pping.

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 the installation instructions.

rosepardgnisU.yltneiciffeeromneveetarepolliwtinueht,gnidliubre hto naro

blinds on the sunny side of the dwelling will also add to your unit’s efficiency.

Be sure to caulk around doors and

LISTED

ELECTRICAL DATA

Not following the above WARNING could result in re or electically unsafe conditions which could cause moderate

or serious property damage.

Read, understand and follow the above warning.

WARNING

ELECTRIC SHOCK HAZARD

Turn off electric power before service or installation.

All electrical connections and wiring MUST be installed by a qualied electrician and conform to

the National Electrical Code and all local codes

which have jurisdiction.

Failure to do so can result in personal injury or

death.

NOTICE

FIRE HAZARD

Wire Size Use ONLY wiring size recommended for single outlet branch circuit.

Fuse/Circuit Breaker Use ONLY the correct HACR type and size fuse/circuit breaker. Read electrical ratings on unit’s

rating plate. Proper circuit protection is the responsibiity of the homeowner.

Grounding Unit MUST be grounded from branch circuit through service cord to unit, or through separate

ground wire provided on permanently connected units. Be sure that branch circuit or general

purpose outlet is grounded.

Receptacle The eld supplied outlet must match plug on service cord and be within reach of service cord.

Do NOT alter the service cord or plug. Do NOT use an extension cord. Refer to the table above for proper receptacle and fuse type.

The consumer - through the AHAM Room Air Conditioner Certication Program - can be certain that the AHAM Certication Seal accurately states the unit’s cooling and heating capacity rating, the amperes and the energy efciency ratio.

*HACR: Heating Air Conditioning and Refrigeration

WARNING

NOTICE

Electrical Shock Hazard

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 oulet. Failure to follow these instructions can result in death, fire, or electrical shock.

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.

The cord provided will carry the proper amount of electrical power to the

unit; an extension cord may not.

Proper grounding must be maintained at all times. Two prong receptacles

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.

Do not use the LCDI device as an ON/OFF switch.

Failure to adhere to this precaution may cause premature equipment malfunction.

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.

Table 1.

MODEL

SS08N10, SS10N10, SS12N10, SS14N10, SM15N10,

YS10M10

SS12N30, SS15N30, SM18N30,

SM21N30

SL22N30

SL24N30, SL28N30, ES12N33, ES15N33, YS12N33

SL36N30, EM18N34, EL36N35,

EM24N34, 30 250 6-30R

YM18N34, YL24N35

CIRCUIT RATING

OR TIME DELAY

FUSE

AMP VOLT

15 125 5 -15R

15 250 6-15R

20 250 6-20R

REQUIRED

WALL

RECEPTACLE

NEMA

NO.

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.

Note: in case of power failure, unit will resume operation according to the last input settings.

Figure 1

RESET

TEST

WARNING

TEST BEFORE EACH USE

1. PRESS RESET BUTTON

2. PLUG LCDI INTO POWER RECEPTACLE

3. PRESS TEST BUTTON, RESET BUTTON SHOULD POP UP

4. PRESS TEST BUTTON, FOR USE DO NOT USE IF ABOVE TEST FAILS

WHEN GREEN LIGHT IS ON IT IS WORKING PROPERLY

15/20A LCDI Device 30A LCDI Device

TEST

RESET

WARNING

TEST BEFORE EACH USE

1. PRESS RESET BUTTON

2. PLUG LCDI INTO POWER RECEPTACLE

3. PRESS TEST BUTTON, RESET BUTTON SHOULD POP UP

4. PRESS TEST BUTTON, FOR USE DO NOT USE IF ABOVE TEST FAILS

WHEN GREEN LIGHT IS ON IT IS WORKING PROPERLY

FRR001

Kuhl Control Options

Kühl Control Options

The

Kühl gives you a variety of options for control, programming, and

scheduling including wireless capabilities

Wireless Programming and Control:

The new FriedrichLink™ Adapter (sold seperately) allows you to conviently

control, program and monitor your air conditioning unit remotely from a

smartphone or computer.

FriedrichLink™ Adapter accessory available through Friedrich authorized retailers or www.friedrich.com. See FriedrichLink™ Adapter section on www.friedrich.com for complete details.

Pre-Programmed Scheduling Options:

Your unit’s digital control comes equipped with a 24-hour timer and two preprogrammed 7-day energy management options.

24-Hour Timer

The 24-hour timer allows you to turn the unit off and on at pre-set times by setting an on and off time on the unit control panel. (See page 11 for details on timer set-up.)

Pre-programmed Energy Management

Your unit comes from the factory with two (2) Pre-programmed Management settings are shown in Addendum 1 (Residential & Commercial Schedule Table).

Energy Management Schedule Options are:

1. Residential Schedule – 40 Hr. Work Week

2. Commercial Schedule – 7-Day Business Week

nergy

The “Residential” (40 Hr. Work Week) Schedule has four (4) time periods: 06:00, 08:00, 18:00, and 22:00. This option will cause your Kühl Q unit to raise the room temperature temporarily to 85°F during the hours wh

en most people are away at work, lower them again to 78°F prior to the time when most people will return home, and then raise slightly to 82°F to maintain a comfortable temperature overnight.

The “Commercial” (7-Day Business Week) Schedule has two (2) time periods: 07:00 and 18:00. This option will cause your air conditioner

to raise temperatures to 84°F after typical working hours and on weekends when commercial spaces ar

e ty

pically unoccupied.

(See Control Panel Operation Instructions Section)

Customizable Programming Options:

Customizable schedules, with up to four temperature adjustments per day, can either be uploaded to the unit via the air conditioner’s built-in micro USB interface or conveniently transmitted wirelessly using the new FriedrichLink™ Adapter accessory, greatly simplifying the programming of one or multiple units. See Figure 2.

See www.friedrich.com for complete Customizable Programming instructions.

Smart Grid

The Kuhl Unit is also able to be controlled by a Smart Grid. Smart Grid is a network that brings electricity from power stations to consumers using new technologies that allow power companies to adjust electrical loads of residential users. Check with your local electric company to learn more about Smart Grid programs in your area.

Figure 2

FriedrichLink™ Adapter

AIR CONDITIONING CO. SAN ANTONIO, TEXAS ASSEMBLED IN MEXICO

MODEL NUMBER

HEATING

REFRIGERANT

XXXXXXXXX

XXXXXXXXXX

VOLTS 115

COOLING

YS10M10A

60 HZ / 1 PH

BTH/HR 6500

SERIAL NUMBER

VOLTS MIN 108

EER 12.0

LICY00008

AMPS 8.0

FUSE PROTECTED

BTH/HR 6500

30.1 OZ R410A EER 10.4 AMPS 7.0

X XX

600 PSIG HS

XXXXXXXXX

CIRCUITS USE 15A

XXXXX

300 PSIG LS

XXXXXXXXXX

TIME DELAY FUSE

XXXXXXXXXX

Control Panel and Display Identication

Let’s check out how to control your air conditioner. On the control panel, just above the POWER , is a liquid crystal display (LCD). All of the control panel function

buttons and mode icons can be viewed in Figure 3.

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 dim to 20

% intensity after 15 s

Display

inactivity, the display dims to 20% intensity. After an additional 120 seconds, the display switches off. Touching any button automatically changes the display

to full brightness.

There are three control push buttons on each side of the display.

Figure 3

econds of inactivity. The remote control can also be used to turn power ON / OFF (See Remote Control).

SYSTEM

Cycles between AUTO, HEAT, COOL, or FAN

ONLY (if equipped)

SYSTEM

FAN

MODE

FAN

SPEED

AUTO

Automatically switches between cool & heat

FAN MODE

Sets fan to either:

- Cycle automatically

- Run continuously

AUTO SPEED

COOL FAN

FAN SPEED

Sets fan speed: LOW, MED, HIGH or AUTO (if equipped)

SET POINT

HEAT

AUTO

AUTO FAN CONTINUOUS

TEMPERATURE

Increment UP

TEMPERATURE:

Increment DOWN

TIMER

SCHEDULE

ONLY

CONTROL

LOCKED

SET POINT ROOM TEMP

TIMER / SCHEDULE

Turns ON or OFF

F C

AM PM

ON OFF

SCHEDULE

IR WINDOW

Do not block

ON / OFF

Turns unit on/off

WI-FI OPERATING

(if equipped)

WAIT

(3 minutes compressor time delay)

2 DIGIT DISPLAY

Shows Setting for:

- Set Point (Temperature)

- Room Temperature

- Clock (AM/PM)

SCHEDULE ON

FAN SPEED

Manually selected fan speed

AUTO SPEED

Automatically selects best fan cooling or heating speed

CHECK FILTER

FILTER

Check / Clean

$MART

TIMER ON

$MART OPERATING

(if equipped)

Control Panel Operation Instructions

SYSTEM - The

of operation. To select, press once and let go.

SYSTEM

button allows you to sequentially select the modes

FAN

FAN MODE – The

CONTINUOUS

modes. To select, press once and let go.

MODE

button allows you to select between

AUTO FAN

and

AUTO MODE

COOL MODE

AN ONLY MODE

Automatically changes between HEAT and COOL (HEAT and COOL ONLY Units)

HEAT MODE N

AUTO MODE COOL

- AUTO -

AUTO FAN

SET POINT

COOL ONLY MODE

AUTO FAN

SET POINT

HEAT MODE

AUTO FAN

ot available on some models

FRR204

FRR103

AUTO FAN

SET POINT

FRR112

When in the

AUTO FAN

mode, the fan operates only when the system has a demand to cool or heat the room. Note: the fan is off (no fan speed icon), indicating no command for cooling or heating.

AUTO FAN (Cooling Demand)

AUTO FAN

SET POINT

FRR106

System has a demand for cooling. The fan is operating at a medium speed.

CONTINUOUS

SET POINT

CONTINUOUS

SET POINT

FRR113

fan mode, the fan operates all the time. The system

FAN ONLY MODE

FRR104

In the

CONTINUOUS

periodically cools or heats the fan's airﬂ ow but the ﬂ ow of air does not stop.

When in the SYSTEM COOL or HEAT or FAN ONLY mode, you

FRR105

FAN SPEED - Cooling only units have 4 fan speeds, except models SL28 and SL36. All Cool+Heat units only have 3 fans speeds.

can also select FAN MODE, FAN SPEED, TIMER SCHEDULE, and . The SYSTEM MODE does not change.

FAN SPEED - The

FAN

button allows you to toggle between four speeds: LOW, MEDIUM, HIGH, MAX and AUTO speed operation. Press once and let go each time.

SPEED

AUTO

4 Speed

FRR095

During the (SYSTEM mode COOL or HEAT), the fan speed automatically varies depending on the difference between the unit's set point on the control panel and the actual room temperature. Let me explain. Say for example, you’re working in your garage and you open the big door for several minutes. The system will sense a wide difference between the set point and the actual room temperature. When this occurs, the system fan speed increases to HIGH for

iod of time. The fan speed decreases, in step, as the temperature difference decreases. When the room temperature matches the system's set point,

a per fan speed returns to the lowest setting, and if the fan mode is on AUTO FAN, the fan will stop.

UP and DOWN - arrows - Pressing either or button changes the system's set point (desired room temperature). These buttons are also used for setting the Timer and other programming.

AUTO FAN

SET POINT

FRR100

AUTO FAN

SET POINT

ºF - ºC Select

AUTO FAN

SET POINT

FRR132

To switch from degrees Fahrenheit (F) to Celsius (C), press and buttons simultaneously for three seconds.

FRR101

One press equals 1 degree of change. Holding the button down for more than 0.6 seconds starts the fast increment/decrement change of the set point.

TIMER SCHEDULE BUTTON -

TIMER

SCHEDULE

The button has two main uses:

1.Used to preselect a TIMER or SCHEDULE function. (For pre-selection instructions, please see page 17.)

2. Used to turn on or activate the pre-selected TIMER or SCHEDULE .

3. To turn on your pre-selction, press the button once and let

TIMER

SCHEDULE

go. The display at bottom right will show the TIMER icon or SCHEDULE icon .

Example: TIMER is turned ON SCHEDULE is turned ON

TIMER (FACTORY DEFAULT) - The TIM

ER is the default on new units. The TIMER function allows you to turn the unit one time ON and one time OFF daily at the times that you select. For example, you can command the system to turn ON at 8:15 am and to turn OFF at 1:30 pm everyday. (To set the timer, see page 18.)

SCHEDULE- The SCHEDULE has two options with factory pre-programmed energy management settings: temperature, system and time settings (see addendum) (for more information, see page 17).

FRR133

An “F” will flash for 5 seconds and then revert to a normal display. To change from F to C, press the

or button within 5 seconds.

FRR134

A “C” will ﬂ ash for 5 seconds and then revert to a normal display.

AUTO FAN

SET POINT

FRR135

The ºF icon goes away and the ºC icon illuminates on the normal display.

Schedule options are:

1. Residential Schedule - 40 hour work week

2. Commercial Schedule - 5 day business week

(These factory pre-programmed settings can only be changed by using the WiFi FriedrichLink™ adaptor, or with an upload via the mirco USB port, with which you can create your own custom program. See page 11.)

DIM Function

There are three separate display brightness levels, AUTO, 20% and full (100%). To change the DIM setting, press the Power button for three seconds.

Wait Icon

AUTO FAN

SET POINT

FRR120

The wait icon illuminates when the compressor lockout is active.

FRR192

The 1 indicates a DIM setting of Auto (factory default on new units). Use the or buttons to change the setting.

FRR193

The 2 indicates a DIM setting of 20%. Press the TIMER SET button within 15 seconds to save the setting. Button inactivity for more than 15 seconds causes the display to time out and return to the normal operating display.

Control Panel Lock

FAN

To lock the front panel controls, press and hold the for 3 seconds. The lock icon

illuminates to indicate the locked status.

TIMER

+ buttons

SPEED

SCHEDULE

During lockout, none of the control panel buttons will operate.

AUTO FAN

SET POINT

FRR116

To unlock, press and hold the

TIMER

FAN

+ buttons simultaneously for 3

SCHEDULE

SPEED

seconds.

External Control Status

$MART

The icon illuminates to indicate that the system is being controlled remotely, such as from a smart grid from a power company (for more information, see page 10).

SMART

AUTO FAN

FRR194

The 3 indicates a DIM setting of 100% (full brightness). Press the TIMER SET (Refer to Figure 8) button within 15 seconds to save the setting. Button inactivity for more than 15 seconds causes the display to time out and return to the normal operating display.

Alerts

Check Filter

When the ﬁ lter needs to be cleaned or replaced, the

AUTO FAN

SET POINT

CHECK FILTER

FAN

The alert can be dismissed by pressing the

MODE

CHECK

icon displays.

FILTER

TIMER

SCHEDULE

and for 3 seconds.

FRR118

SET POINT

$MART

FRR125

WiFi Connection

AUTO FAN

SET POINT

FRR126

The icon illuminates to indicate that the system is receiving a Wi-Fi connection (for more information, see page 10).

TIMER OR SCHEDULE OPTIONS 1 OR 2 SELECTION

The control system has one Timer and two Schedule functions:

A. Timer (factory default) - Allows you to command the unit to turn

ON and OFF at a time you program. Setting the start, stop and day can be found latter in this manual on page 18.

Residential Schedule - When selection #1 is selected, the unit follows a pre-programmed set of operational parameters that covers 5 days of the week with 4 time windows during each day. Each time window has it's own set of 8 operating parameters. Refer to Addendum 1.

Commercial Schedule - When selection #2 is selected, the unit follows a pre-programmed set of operational parameters that covers 7 days of the week with 2 time windows during each day. Each time window has it's own set of 8 operating parameters. Refer

to Addendum 1.

To change the TIMER/SCHEDULE selection, press and hold the button for 3 sec, then let go.

TIMER

SCHEDULE

AUTO FAN

SET POINT

FRR136

The display reverts to the normal display.

NOTE: The schedule options 1 and 2 have factory pre-programmed settings which can only be changed by using the WiFi FriedrichLink™ adaptor (an accessory). With it, you can create your own custom schedule program. See page 10 for more information.

NOTE: Once you have selected the TIMER or SCHEDULE we must first set the following before turning it on.

1. Set time and day

2. Set start time

3. Set stop time

See timer settings on next page.

FRR139

The display shows the TIMER is selected. Press the button once and let go.

SCHEDULE

FRR137

The display shows option 1 (Residential Schedule) is selected. Press the button once and let go.

To Turn On the Timer or Schedule Selected

TIMER

Press the button and let go. The system will operate in the mode

SCHEDULE

option (1, 2 or Timer) you selected. At the above image, TIMER is selected and turned on.

FRR139

SCHEDULE

The display shows option 2 (Commercial Schedule) is selected.

To save and exit selection, press the TIMER SET button (Figure 4, Page

18).

FRR138

TIMER SETTINGS

1. Set time and day 2. Set start time 3. Set stop time

Figure 4

SET TIME AND DAY - To adjust the unit's time press and hold the HOUR and the MIN buttons for three seconds (Refer to Figure 4).

AUTO FAN

SET POINT

FRR131

Press TIMER SET (Refer to Figure 4) button to exit and save the SET TIME function. The TIMER SET button must be pressed within 15 second. Button inactivity for more than 15 seconds causes the display to time out and return to the normal operating display.

Timer Start Time

AUTO FAN

SET POINT

FRR128

The unit's current hour displays. Use the or buttons to adjust the hour. To change from AM to PM continue to increment (roll) the display. Press TIMER SET (Refer to Figure 4) button to save the hour and display the unit’s current minutes.

Use the

or buttons to adjust the minutes. The clock is now set

FRR129

for 11:25 AM. Press TIMER SET (Refer to Figure 4) button to display the unit's day setting.

FRR140

The display shows a normal system. Press and hold the HOUR button (Figure 4) for 3 seconds. Note: The Timer start-stop times may be set even when the system is in the Timer or Schedule mode.

FRR141

Use the or button to adjust the hour. Press the TIMER SET button (Figure 4) to adjust the minutes.

Use the or buttons to adjust the day (1 to 7). The day setting is up

to the user. If you set the current day = 1. So if today is Tuesday, then

Day 1 = Tuesday, select 1.

FRR130

FRR142

Use the or button to adjust the minutes. Press the TIMER SET button (Figure 4) within 15 seconds to exit and save the setting. The timer is now set to start at 4:21 AM.

The display will return to normal.

Set theTimer Stop Time

AUTO FAN

SET POINT

FRR144

The display shows a normal system. Press and hold the MIN button (Figure

4) for 3 seconds. Note the Timer start - stop times may be set even when the system is in the Schedule mode.

OFF

Timer ON Scenarios

Scenario 1

AUTO FAN

SET POINT

FRR156

The display shows a normal operating system.

FRR145

Use the or button to adjust the hour. Press the TIMER SET button (Figure 4) to advance to the Minutes section.

OFF

FRR146

Use the or button to adjust the minutes. Press the TIMER SET button (Figure 4) within 15 seconds to exit and save the setting. The timer is now set to stop at 11:55 AM. The display returns to normal.

Turning the TIMER ON once the time and day, the start and top times have been set:

TIMER

Press the button once and let go.

SCHEDULE

NOTE: See the following TIMER ON/OFF scenarios.

FRR157

If the Timer function is turned ON during the Timer’s OFF time, the icon illuminates. The control system immediately turns the unit OFF.

Scenario 2

AUTO FAN

SET POINT

FRR158

The display shows a normal operating system.

AUTO FAN

SET POINT

FRR159

If the Timer function is turned ON during the Timer’s ON time, the icon illuminates. The control system immediately turns the unit OFF.

Timer OFF Scenarios

Scenario 1

Timer - Schedule Control Block

AUTO FAN

FRR166

The display shows the unit in Timer mode during an in-active (OFF) period.

AUTO FAN

SET POINT

FRR167

If the Timer function is turned OFF during an in-active (OFF) period, the Timer

icon turns off. The display shows a normal system.

Scenario 2

SET POINT

If the unit is operating in the TIMER or SCHEDULE mode, and you press any bytton except the button, the TIMER icon begins to

TIMER

SCHEDULE

FRR148

blink. All button action is blocked.

AUTO FAN

SET POINT

SCHEDULE

FRR149

The TIMER icon stops blinking after 3 seconds. You must turn the active TIMER or SCHEDULE mode OFF before making changes. Once the changes are made, press the button to re-activate TIMER

TIMER

SCHEDULE

or SCHEDULE mode.

AUTO FAN

SET POINT

FRR168

The display shows the unit in Timer mode during an active (ON) period.

AUTO FAN

SET POINT

FRR169

If the Timer function is turned OFF during the ON time. The Timer icon turns off. The control stays in the current state.

The display shows a normal system.

If the unit is operating in the TIMER or SCHEDULE mode, and then you press any button except the button, the TIMER icon begins

TIMER

SCHEDULE

to blink.

AUTO FAN

SET POINT

FRR150

All button action is blocked.

Remote Control Operation

Remote Control - Refer to Figures 12 and 13 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 11 for effectiveness). Press the power button to turn the remote on. The remote will automatically power off aft

er 15 seconds if the buttons are not being pressed. The remote must

be on to cont

POWER Button - Turns remote and unit on and off.

SYSTEM Button - Allows the user to sequentially select the

following: AUTO - AUTO -, COOL

operations. When the button is pressed, the display indicates which mode has been selected via a display message.Note that when the heating

function is not available, the system will

FAN MODE Button - Selects between automatic ( operation. In the

NOTE:

rol the unit.

HEAT

automatically skip the HEAT mode.

AUTO FAN

mode, the fan only turns on and off when the

compressor operates or the heat function is enabled.

AUTO FAN

is not available in the FAN ONLY Mode, the display

indicates

CONTINUOUS

. In the

CONTINUOUS

determined by your selection on the

, and FAN ONLY

AUTO FAN

) or

mode, fan speed is

FAN

button.

SPEED

CONTINUOUS

FAN SPEED Button - Used to sequentially select new fan speed, plus AUTO operation. When the

FAN

button is pressed, the fan speed icon

SPEED

(triangle) changes to indicate the new speed level. Fan speed automatically

varies depending on the set temperature on the control panel and the actual room temperature. For example if there is a big difference between your set temperature and the actual room temperature, the system fan speed increases to HIGH. It remains at this speed until the room temperature matches the set temperatur

TIMER/SCHEDULE Button - The button turns the schedule

TIMER

SCHEDULE

function on and off. Press the Schedule button once to turn on the Schedule (Residential, Commercial, or Timer) that has already been selected on your unit. Pressing the button a second time turns

TIMER

SCHEDULE

the schedule function off.

UP and DOWN Arrows - Pressing either the

(UP) or (DOWN) button changes the desired room temperature. The factory preset lower and upper limits are 60°F (16°C) and 99°F (37°C). These buttons are also used to navigate between function options when using the User Menu or Maintenance Mode.

Remote Effectiveness

Hand Held Remote - Has an operating range of up to 25 ft. The infrared

remote control signal must have a clear path to transmit the command to the air conditioning unit. The remote signal has some ability to "bounce" off of walls and furniture similar to a television remote control. The diagram below shows the typical operating range of the control in with 8 ft high ceilings.

a standard room

Figure 11

SIDE VIEW

TOP VIEW

25ft

7.5ft

30°

45°

60°

45°

30°

8ft

25ft

4ft

8ft

60°

45°

30°

6ft

16ft

25ft

Changing Temperature from F˚ (Fahrenheit) To C˚ (Celsius) or Reverse

Be within 25' of unit with the remote control. Press the SYSTEM and FAN MODE buttons at the same time and hold for 3 seconds. The display will show the temperature in Celcius. Do the same to reverse temperature to F (The remote control operation overrides manual settings on unit)

˚ (Fahrenheit).

FRR080

Remote Control Operation (Continued)

Figure 12

SYSTEM

TEMPERATURE

FAN SPEED

AUTO

AUTO FAN CONTINUOUS

AUTO

SYSTEM

FAN SPEED

POWER

FAN MODE

SCHEDULE

DISPLAY

FAN MODE

POWER

TEMPERATURE DOWN

SCHEDULE

FRR081

Figure 13

SYSTEM

MODE

FAN

MODE

FAN

SPEED

COOL

ICON

AUTO

AUTO FAN CONTINUOUS

AUTO

HEAT ICON

SCHEDULE

ICON

FAN ONLY

ICON

°F / °C ICONs

FRR082

UNIT OPERATION

Front Panel

System Mode Sequence (TIMER/SCHEDULE = OFF)

There are two system modes of operation. One for a cool only unit (see figure 1) and one for a heat-cool unit (see figure 2). System parameters for each system mode are saved when exiting a system mode, and retrieved when entering a new system mode.

Figure 1

System Mode: Cool Only Units

Timer/ Schedule

Figure 2

System Mode: Heat - Cool Units

Timer/ Schedule

ELECTRONIC CONTROL SEQUENCE OF OPERATION

Compressor and Reversing Valve Control

Active Mode Compressor

Cooling De-Energized Heat - Heat Pump

Heat - Electric Fan Only

* The Reversing valve stays in the last state until a call for heat or cooling (see gure below)

On On Off Off

Reversing Valve State

Energized

Compressor Operation:

The reversing valve only changes when required

to provide cooling or heat pump. The RV valve

stays in it's last state until required to change.

Cooling Mode

Once the ambient temperature rises past the cool demand threshold (Cool Set Point + 1.5 ˚F) (see gure below), and the compressor is not locked out, the cooling cycle begins. As shown in the gure 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. (See gure below for graphic details)

Heating Mode Control Operation

There are two heating methods: Heat Pump and Electric Resistance Heat. There are 3 types of units that provide heating: Heat Pump Only (Model YS10M10) Heat Pump with Electric Heat and Cool with Electric Heat.

Heat Control Operation Heat Pump Only Unit (YS10M10 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. Once the ambient temperature has been raised to the Heat Satised Point (Set point + .25 ˚F), the compressor is turned off. The fan is turned off 15 seconds later. The gure below illustrates the basic heat pump operation.

Satised Point

Heat Control (Heat Pump Only)

YS10M10 Heat Pump Defrost Cycle Operation

The defrost in this unit is an active reverse cycle. The defrost control runs in the background and determines when a defrost cycle is required. Once initiated, the defrost cycle runs to completion. The defrost cycle can only be initiated when the heat pump is in operation. The compressor will not be turned off to avoid activating the compressor's time delay. The reversing valve will be switched to the cool mode position. The indoor fan/blower will be turned off. Once the defrost cycle is nished, the system should re-enter a heating demand

cycle if required.

When the heat pump run time is 60 minutes or greater with an outdoor coil temperature of 26F degrees or lower, the control will run an active defrost for up to 6 minutes. When the temperature at the outdoor coil reaches 54F degrees, the heat pump heat will resume.

Heat Pump With Electric Heat Operation

This heating is more complex due to the possibility of two heating methods. If the ambient indoor temperature is below 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.

If the compressor is locked out & electric heat is available:

1. Turn on the electric heat until the compressor is not locked out.

2. After lockout, turn off the electric heat, wait 5 seconds, then turn on the compressor.

If Electric Heat is Available

After the Heat button is initially pressed, the unit will run the electric heater rst until the initial set point is satised (Hot Start Feature). After the initial start, the unit will switch to Heat Pump heat and decide between Heat Pump heat and

Electric heat based on the following two monitored conditions:

Condition 1

If the outdoor coil temperature sensor drops to 30 ˚F or less for 2 consecutive minutes, the unit will switch to electric heat if available. Thereafter, the unit will switch back to Heat Pump heat if the outdoor coil temperature sensor rises to 45 ˚F or

greater.

If Electric Heat is not available (out of order) and the outdoor coil temperature sensor drops to 30 ˚F or less for 2 consecutive minutes, then the compressor and fan will turn off. Thereafter, the unit will switch back to Heat Pump heat if the outdoor coil temperature rises to 45 ˚F or greater.

Heat Pump With Electric Heat Operation (Continued)

Condition 2

If the Δ (delta) (set point temperature minus the ambient indoor temperature) is greater than 5 ˚F, then the unit will switch to electric heat, if available. The unit will continue to operate with electric heat until the heat demand is satised. Note that the electric heat switches on after the Δ temp passes 5°F and the heat pump switches off. Also note that the electric heat will run until the heat demand is satised. When another heat demand cycle is initiated, the heat pump will run unless the Δ

temp is greater than the electric heat threshold.

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.

2) At this point, error code 15 is generated; heat pump failure. Indoor coil temperature lower than indoor ambient

temperature for 5 or more degrees for 5 consecutive minutes.

Note: It is Ok to continue to use the unit with the electric heater until the heat pump is repaired.

Electric Heat Operation in Cool with Electric Heat Units

When in the Heat mode, with and without Fan Mode Auto (Fan cycling): If the indoor ambient temperature is below the Heat Demand Threshold (Heat Set Point minus 1.5 ˚F), turn on electric heat. If Ambient is 0.3 ˚F above the Heat Set Point turn off the electric heat.

System Mode Auto

This mode provides automatic change over between cool and heat. The auto mode runs based on the room ambient

temperature vs. the Demand Thresholds. It is only available in Heat-Cool Unit.

Notes:

There is a buffer zone between the cool and heat set points where no heating or cooling is allowed to occur. It is critical that the Cool Demand Threshold be greater than the Heat Demand Threshold by a minimum of 3° while in the Auto System Mode. For example, if a user enters a value for the Auto Cooling Set Point that violates the minimum Δ 3° rule, the Auto Heating Set Point will adjust accordingly.

Automatic Change Over Delay (Cool with Heat Units)

The change over delay ensures that any system heating or cooling over shoot does not trigger an opposite demand cycle. The change over delay = 15 min. This timer blocks the opposite demand cycle from running until the timer expires. As an

example, if the last demand was a cool cycle, and another cool cycle is requested, the timer will not block the request. However, if the last demand cycle was a cool cycle, and heat cycle is requested, the timer will block the request until the

change over delay is expired.

Compressor Lock Out Time

The lockout feature ensures that the compressor is de-energized for a period of time. The timer varies randomly from 180 to 240 seconds

The compressor lockout is initiated every time the compressor is “off” due to:

(1) Satisfying the temperature set point (2) Changing mode to fan only or heat (3) Turning the unit off (4) Control is rst plugged in or power is restored after failure (5) Line power is restored from a brown out condition

Wait ICON (Hour Glass )

The wait icon will be turned on when the compressor is locked out and during demand for cooling or heat pump compressor operation. The Wait ICON will be turned off when the condition clears.

Cooling Fan Delay

Fan cycle/Auto mode only When unit cycles cooling ON – starts the fan 5 seconds EARLY. When unit cycles cooling OFF – DELAYS the fan off for 30 seconds

Note: this fan delay is disabled during Test Mode

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

Note: the fan delay is disabled during Test Mode

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.

Fan Only System Mode

The fan is turned on and runs at the specied manually set speed.

Only the Fan is turned on. Cool or Heat operation are off.

(This is different than FAN MODE CONTINUOUS where the fan is on with the cool or heat operation).

Fan Only Rules

1. If the SYSTEM FAN ONLY MODE is selected, the Auto fan mode is disabled, and the fan mode is forced to continuous. In addition, the auto fan speed is disabled. If the user presses the fan speed key, the menu will skip over

the auto selection. The set point temperature display is off.

2. Any fan speed may be manually selected during Fan Only Mode.

Fan Operation (Front Panel Mode)

Mode

Heat – Cool – Auto – Fan Only

Models starting with SS, SM have 4 speeds. Models with SL, and all Kuhl+ have 3 speeds

Speed Selection

1 2 3 4 AUTO

AUTO Operation, but never turns Off. Uses cool set point or heat set point vs. ambient temperature. When there is no demand, operate at the lowest available speed.

AUTO operation turns On or Off with heat or cool demand Uses cool set point or heat set point vs. ambient temperature

Fan

Continuous

AUTO

Fan Only

"On" " On" "On" " On"

Turns On or Off with heat or cool demand

"On" " On" "On" " On" Disabled

Turns On or Off with heat or cool demand

Tabl e

Fan ICON Detail

The system may have a 3 or 4 speed fan. The Fan Speed ICON will Display as per the table below.

Note that in the AUTO mode, the speed of the fan will be shown by illuminating the number of bars in the speed triangle.

Fan Relay Operation

Using the

Front Panel

REMOVING THE FRONT COVER

REMOVING THE CHASSIS

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 by using the tool

provided (see gure below).

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. (See gure at left). Remove the chassis Entrygard Retainer Wire by removing the screw at the front right bottom corner (See Figure below). Save this screw for reattachment

after reinstalling the chassis.

Tighten the four (4) captive screws as indicated by the arrows in the gure above before closing the front panel (do not over tighten). Ensure the lter is in place.

Make sure curtains do not block the side air intake

Notes on reattaching the decorative front cover: Align the cord notch over the cord and center the fresh air lever. Align the cover over the User Interface

(UI) to ensure it is clear around it and it does not depress any buttons. If not installed correctly the

wrench alert symbol could ash.

Hold the cabinet stationary then use the hand grips on both ends of the control unit support bracket to pull the

chassis out of the cabinet (see below).

Before reinserting the chassis into the sleeve ensure to properly reinstall the chassis seal gasket.

REPLACING THE INDOOR COIL THERMISTOR

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 (see page 29). Remove all indicated screws below (8 total, see gure below). Remove the Discharge Sensor and the User

Interface plugs from the control board.

Replace the indoor coil sensor. Ensure to properly clip

and insulate it at the same location (see gure below).

Remove the screws indicated at the side and back plate (6 total, see gure below). Partially lift the top cover and at the same time carefully swing out from the top, the

back and side plate.

Swing

Out

REPLACING THE CONTROL BOARD

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 (see page 29). Disconnect discharge sensor plug (red) Disconnect the User Interface plug (white) Remove the 3 screws indicated below.

Pull control board and mount plate out and disconnect

the following connectors from it: Power, capacitor, thermistors, fan, reversing valve

and heater.

Remove the hex screw holding the control board to its mount plate. Pull out the control board (see gure below).

Airflow Selection and Adjustment

Air flow direction adjustment

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

move it in the direction that you would like the air to be directed. Please

louvers than the other.

Fresh air and exhaust control

Your air conditioner has the ability to bring fresh air into the room or exhaust stale air out of the room. The control slide is found on the upper part of

the unit (See Figure).

TO BRING IN FRESH AIR – Move the lever to the Fresh Air 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 compressor in the Cooling Mode if you wish.

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 especially handy in the spring or fall when indoor air tends to get stale, or after a social gathering involving smokers, or to remove cooking odors.

BEST PERFORMANCE – Move the lever to the Re -Circulate Position

position

FRR008

COMPONENTS TESTING

FAN MOTOR

A single phase permanent split capacitor motor is used to drive the evaporator blower and condenser fan. A self-resetting overload is located inside the motor to protect against high temperature and high amperage conditions. (See Figure 23)

WARNING

ELECTRIC SHOCK HAZARD

Disconnect power to the unit before servicing. Failure to follow this warning could result in serious injury or death.

BLOWER/FAN MOTOR - TEST

1. Determine that capacitor is serviceable.

2. Disconnect fan motor wires from fan speed switch or system switch.

3. Apply “live” test cord probes on black wire and common terminal of capacitor. Motor should run at high speed.

4. Apply “live” test cord probes on red wire and common terminal of capacitor. Motor should run at low speed.

5. Apply “live” test cord probes on each of the remaining wires from the speed switch or system switch to test

intermediate speeds. If the control is in the “MoneySaver” mode and the thermostat calls for cooling, the fan will start - then stop after approximate fan and compressor will start together approximately 2 minutes later.

Figure 23 Blower/Fan Motor

ly 2 minutes; then the

CAPACITORS

WARNING

ELECTRIC SHOCK HAZARD

Turn off electric power before servicing. Discharge capacitor with a 20,000 Ohm 2 Watt

resistor before handling.

Failure to do so may result in personal injury,

or death.

Many motor capacitors are internally fused. Shorting the

terminals will blow the fuse, ruining the capacitor. A 20,000 ohm 2 watt resistor can be used to discharge capacitors safely. Remove wires from capacitor and place resistor across terminals. When checking a dual capacitor with a capacitor analyzer or ohmmeter, both sides must be tested.

Capacitor Check with Capacitor Analyzer

The capacitor analyzer will show whether the capacitor is “open” or “shorted.” It will tell whether the capacitor is within its micro farads rating and it will show whether the capacitor is operating at the proper power-factor percentage. The instrument will automatically discharge the capacitor when the test switch is released.

Capacitor Connections

The starting winding of a motor can be damaged by a

shorted and grounded running capacitor. This damage usually can be avoided by proper connection of the running capacitor terminals.

From the supply line on a typical 230 volt circuit, a 115 volt potential exists from the “R” terminal to ground through a possible short in the capacitor. However, from the “S” or start terminal, a much higher potential, possibly as high as 400 volts, exists because of the counter EMF generated in the start winding. Therefore, the possibility of capacitor failure is much greater when the identied terminal is connected to the “S” or start terminal. The identied terminal should always be connected to the supply line, or “R” terminal, never to the “S” terminal.

When connected properly, a shorted or grounded running capacitor will result in a direct short to ground from the “R” terminal and will blow the line fuse. The motor protector will protect the main winding from excessive temperature.

Dual Rated Run Capacitor Hook-up

COMPONENTS TESTING (continued)

HEATING ELEMENT

All heat pumps and electric heat models are equipped

with a heating element with the exception of model YS10M10. The other “YS” and “ES” models are equipped with a 3.3 KW element. The “YM” and “EM” models are equipped with a 4.0 KW element. The “YL” and “EL” models are equipped with a 5.2 KW element.

Heating Element Sample

The heating element contains a fuse link and a heater

limit switch. The fuse link is in series with the power supply and will open and interrupt the power when the

temperature reaches 199°F or a short circuit occurs in

the heating element. Once the fuse link separates, a new fuse link must be installed.

NOTE: Always replace with the exact replacement. The heater element has a high limit control. This control is a bimetal thermostat mounted in the top of the heating element.

Should the fan motor fail or lter become clogged, the high limit control will open and interrupt power to

the heater before reaching an unsafe temperature condition.

The control is designed to open at 110°F ±6°F. Test continuity below 110°F or when it is cooled off.

TESTING THE HEATING ELEMENT

WARNING

ELECTRIC SHOCK HAZARD

Disconnect power to the unit before servicing. Failure to follow this warning could result in serious injury or death.

Testing of the elements can be made with an ohmmeter across the terminals after the connecting wires

have been removed. A cold resistance reading of

approximately 14.5 ohms for the 3.3 KW heater, 11.9

ohms for the 4.0 KW heater and 9.15 ohms for the 5.2 KW heater should be registered.

DRAIN PAN VALVE

During the cooling mode of operation, condensate which collects in the drain pan is picked up by the con-

denser fan blade and sprayed onto the condenser coil. This assists in cooling the refrigerant plus evaporating

the water.

During the heating mode of operation, it is necessary that water be removed to prevent it from freezing during

cold outside temperatures. This could cause the con-

denser fan blade to freeze in the accumulated water

and prevent it from turning.

To provide a means of draining this water, a bellows

type drain valve is installed over a drain opening in the base pan.

This valve is temperature sensitive and will open when

the outside temperature reaches 40°F. The valve will close gradually as the temperature rises above 40°F to fully close at 60°F.

HEATING ELEMENT (Heat Pump Models)

The heating element for the “Y” model is energized

by an outdoor thermistor via the electronic control

board. The outdoor defrost thermistor is adjusted at

a predetermined temperature of approximately 30

degrees Fahrenheit and sensed for two consecutive minutes, to stop the compressor and turn on the

heating element.

Bellows Assembly Drain Pan Valve

If the User Interface does not turn on:

1. Make sure the unit has the proper voltage and that it is turned on.

2. Disconnect the User Interface’s wire harness on the control board.

3. Using a voltmeter, check the top and bottom pins of the male connector (see picture below). There should be 5VDC

4. If there is no voltage, replace the electronic control board.

6. If the connections and the wire harness are good, replace the User Interface.

User Interface

Control Board

Micro USB port for KWIFI adaptor and offline scheduler. (See page #11)

User Interface

Connector

Check here for 5VDC. If no voltage, replace board. If there is 5VDC, check connections and cable. If ok, replace User Interface.

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 difcult 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 ows from a warmer body to a cooler body.”

2. “Heat must be added to or removed from a substance before a change in state can occur”

3. “Flow is always from a higher pressure area to a lower pressure area.”

4. “The temperature at which a liquid or gas changes state

is dependent upon the pressure.”

The refrigeration cycle begins at the compressor. Starting

the compressor creates a low pressure in the suction line which draws refrigerant gas (vapor) into the compressor. The compressor then “compresses” this refrigerant, raising its pressure and its (heat intensity) temperature.

The refrigerant leaves the compressor through the discharge

Line as a hot High pressure gas (vapor). The refrigerant enters the condenser coil where it gives up some of its heat. The condenser fan moving air across the coil’s nned

surface facilitates the transfer of heat from the refrigerant to the relatively cooler outdoor air.

When a sufcient quantity of heat has been removed from the refrigerant gas (vapor), the refrigerant will “condense” (i.e. change to a liquid). Once the refrigerant has been condensed (changed) to a liquid it is cooled even further by the air that continues to ow across the condenser coil.

The RAC design determines at exactly what point (in the condenser) the change of state (i.e. gas to a liquid) takes place. In all cases, however, the refrigerant must be totally condensed (changed) to a Liquid before leaving the

condenser coil.

The refrigerant leaves the condenser Coil through the

liquid line as a warm high pressure liquid. It next will pass through the refrigerant drier (if so equipped). It is the function of the drier to trap any moisture present in the system, contaminants, and large particulate matter.

The liquid refrigerant next enters the metering device. The metering device is a capillary tube. The purpose of the

metering device is to “meter” (i.e. control or measure) the

quantity of refrigerant entering the evaporator coil.

In the case of the capillary tube this is accomplished (by design) through size (and length) of device, and the pressure

difference present across the device.

Since the evaporator coil is under a lower pressure (due to the suction created by the compressor) than the liquid line,

the liquid refrigerant leaves the metering device entering the

evaporator coil. As it enters the evaporator coil, the larger area and lower pressure allows the refrigerant to expand and lower its temperature (heat intensity). This expansion is often referred to as “boiling”. Since the unit’s blower is moving indoor air across the nned surface of the evaporator coil,

the expanding refrigerant absorbs some of that heat. This

results in a lowering of the indoor air temperature, hence the “cooling” effect.

The expansion and absorbing of heat cause the liquid

refrigerant to evaporate (i.e. change to a gas). Once the refrigerant has been evaporated (changed to a gas), it is heated even further by the air that continues to ow across

the evaporator coil.

The particular system design determines at exactly what point (in the evaporator) the change of state (i.e. liquid to a gas) takes place. In all cases, however, the refrigerant must be totally evaporated (changed) to a gas before leaving the

evaporator coil.

The low pressure (suction) created by the compressor

causes the refrigerant to leave the evaporator through the

suction line as a cool low pressure vapor. The refrigerant then returns to the compressor, where the cycle is repeated.

Suction Line

Evaporator Coil

Metering Device

Refrigerant Strainer

Discharge Line

Condenser Coil

Compressor

Refrigerant Drier

Liquid Line

R-410A SEALED SYSTEM REPAIR CONSIDERATIONS

WARNING

Refrigeration system under high pressure

Do not puncture, heat, expose to ame or incinerate.

Only certied refrigeration technicians should 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

• R-410A pressure is approximately 60% higher than R-22 pressure.

• R-410A cylinders must not be allowed to exceed 125 F, they may leak or rupture.

• R-410A must never be pressurized with a mixture of air, it may become ammable.

•

Servicing equipment and components must be specically designed for use with R-410A and

dedicated to prevent contamination.

•

Manifold sets must be equipped with gauges capable of reading 750 psig (high side) and 200

psig (low side), with a 500-psig low-side retard.

•

Gauge hoses must have a minimum 750-psig service pressure rating

• Recovery cylinders must have a minimum service pressure rating of 400 psig, (DOT 4BA400 and DOT BW400 approved cylinders).

•

POE (Polyol-Ester) lubricants must be used with R-410A equipment.

• To prevent moisture absorption and lubricant contamination, do not leave the refrigeration

system open to the atmosphere longer than 1 hour.

•

Weigh-in the refrigerant charge into the high side of the system.

• Introduce liquid refrigerant charge into the high side of the system.

• For low side pressure charging of R-410A, use a charging adaptor.

• Use Friedrich approved R-410A lter dryers only.

R-410A SEALED REFRIGERATION SYSTEM REPAIRS

IMPORTANT

SEALED SYSTEM REPAIRS TO COOL-ONLY MODELS REQUIRE THE INSTALLATION OF A LIQUID LINE DRIER.

EQUIPMENT REQUIRED:

1. Voltmeter

2. Ammeter

3. Ohmmeter

9. High Pressure Gauge - (0 to 750 lbs.)

10. Low Pressure Gauge - (-30 to 200 lbs.)

11. Vacuum Gauge - (0 - 1000 microns)

4. E.P.A. Approved Refrigerant Recovery System

5. Vacuum Pump (capable of 200 microns or less vacuum.)

6. Acetylene Welder

7. Electronic Halogen Leak Detector capable of detecting HFC (Hydrouorocarbon) refrigerants.

8. Accurate refrigerant charge measuring device such

as:

a. Balance Scales - 1/2 oz. accuracy

b. Charging Board - 1/2 oz. accuracy

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.

Failure to follow these procedures could result in serious injury or death.

12. Facilities for owing nitrogen through refrigeration tubing

during all brazing processes.

EQUIPMENT MUST BE CAPABLE OF:

1. Recovering refrigerant to EPA required levels.

2. Evacuation from both the high side and low side of the

system simultaneously.

3. Introducing refrigerant charge into high side of the system.

4. Accurately weighing the refrigerant charge introduced

into the system.

Proper refrigerant charge is essential to proper unit operation.

Operating a unit with an improper refrigerant charge will result in reduced performance (capacity) and/or efciency. Accordingly, the use of proper charging methods during servicing will insure that the unit is functioning as designed and that its compressor will not be damaged.

Too much refrigerant (overcharge) in the system is just as bad (if not worse) than not enough refrigerant (undercharge). They

both can be the source of certain compressor failures if they

remain uncorrected for any period of time. Quite often, other problems (such as low air ow across evaporator, etc.) are

misdiagnosed as refrigerant charge problems. The refrigerant

circuit diagnosis chart will assist you in properly diagnosing

these systems.

An overcharged unit will at times return liquid refrigerant (slugging) back to the suction side of the compressor eventually causing a mechanical failure within the compressor. This mechanical failure can manifest itself as valve failure, bearing failure, and/or other mechanical failure. The specic type of failure will be inuenced by the amount of liquid being returned,

and the length of time the slugging continues.

Refrigerant Charging

NOTE: Because the RAC system is a sealed system, service

process tubes will have to be installed. First install a line tap

and remove refrigerant from system. Make necessary sealed system repairs and vacuum system. Crimp process tube line and solder end shut. Do not leave a service valve in the sealed system.

Not enough refrigerant (undercharge) on the other hand, will cause the temperature of the suction gas to increase to the point where it does not provide sufcient cooling for the compressor motor. When this occurs, the motor winding temperature will increase causing the motor to overheat

and possibly cycle open the compressor overload protector.

Continued overheating of the motor windings and/or cycling of the overload will eventually lead to compressor motor or

overload failure.

Method Of Charging / Repairs

The acceptable method for charging the sealed system is the

Weighed in Charge Method. The weighed in charge method is applicable to all units. It is the preferred method to use, as it is

the most accurate.

The weighed in method should always be used whenever a charge is removed from a unit such as for a leak repair, compressor replacement, or when there is no refrigerant charge left in the unit. To charge by this method, requires the following steps:

1. Install a piercing valve to remove refrigerant from the

sealedsystem. (Piercing valve must be removed from the system before recharging.)

2. Recover Refrigerant in accordance with EPA regulations.

WARNING

BURN HAZARD

Proper safety procedures must be followed, and proper protective clothing must be worn when working with a torch.

Failure to follow these procedures could result in moderate or serious injury.

3. Install a process tube to sealed system.

CAUTION

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 minor to moderate injury.

4. Make necessary repairs to system.

5. Evacuate system to 200 microns or less.

6. Weigh in refrigerant with the property quantity of R-410A refrigerant.

7. Start unit, and verify performance.

WARNING

BURN HAZARD

Proper safety procedures must be followed, and proper protective clothing must be worn when working with a torch.

Failure to follow these procedures could result in moderate or serious injury.

8. Crimp the process tube and solder the end shut.

WARNING

ELECTRIC SHOCK HAZARD

Turn off electric power before service or installation.

WARNING

HIGH PRESSURE HAZARD

Sealed Refrigeration System contains refrigerant and oil under high pressure.

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.

Undercharged Refrigerant Systems

An undercharged system will result in poor performance (low pressures, etc.) in both the heating and cooling cycle.

Whenever you service a unit with an undercharge of refrigerant, always suspect a leak. The leak must be

repaired before charging the unit.

To check for an undercharged system, turn the unit on, allow the compressor to run long enough to establish working pressures in the system (15 to 20 minutes).

During the cooling cycle you can listen carefully at the exit

of the metering device into the evaporator; an intermittent hissing and gurgling sound indicates a low refrigerant charge. Intermittent frosting and thawing of the evaporator is another indication of a low charge, however, frosting and thawing can also be caused by insufcient air over

the evaporator.

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.

A check of the amperage drawn by the compressor motor should show a lower reading. (Check the Unit Specication.) After the unit has run 10 to 15 minutes, check the gauge pressures. Gauges connected to system with an undercharge will have low head pressures and substantially low suction pressures.

Checks for an undercharged system can be made at the compressor. If the compressor seems quieter than normal, it is an indication of a low refrigerant charge.

Overcharged Refrigerant Systems

Compressor amps will be near normal or higher.

Noncondensables can also cause these symptoms.

To conrm, remove some of the charge, if conditions improve, system may be overcharged. If conditions don’t improve, Noncondensables are indicated.

Whenever an overcharged system is indicated, always make sure that the problem is not caused by air ow problems. Improper air ow over the evaporator coil may

indicate some of the same symptoms as an over charged system.

An overcharge can cause the compressor to fail, since it would be “slugged” with liquid refrigerant.

The charge for any system is critical. When the compressor

is noisy, suspect an overcharge, when you are sure that

the air quantity over the evaporator coil is correct. Icing

of the evaporator will not be encountered because the refrigerant will boil later if at all. Gauges connected to system will usually have higher head pressure (depending upon amount of over charge). Suction pressure should be

slightly higher.

Restricted Refrigerant System

Troubleshooting a restricted refrigerant system can be

difcult. 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.

Restricted refrigerant systems display the same symptoms

as a “low-charge condition.”

When the unit is shut off, the gauges may equalize very slowly.

Gauges connected to a completely restricted system will run in a deep vacuum. When the unit is shut off, the

gauges will not equalize at all.

A quick check for either condition begins at the evaporator.

With a partial restriction, there may be gurgling sounds

at the metering device entrance to the evaporator. The evaporator in a partial restriction could be partially frosted or have an ice ball close to the entrance of the metering device. Frost may continue on the suction line back to the compressor.

Often a partial restriction of any type can be found by feel,

as there is a temperature difference from one side of the restriction to the other.

With a complete restriction, there will be no sound at the

metering device entrance. An amperage check of the

compressor with a partial restriction may show normal current when compared to the unit speci cation. With a complete restriction the current drawn may be considerably less than normal, as the compressor is running in a deep vacuum (no load.) Much of the area of the condenser will

be relatively cool since most or all of the liquid refrigerant

will be stored there.

The following conditions are based primarily on a system

in the cooling mode.

HERMETIC COMPONENTS CHECK

WARNING

BURN HAZARD

Proper safety procedures must be followed, and proper protective clothing must be worn when working with a torch.

Failure to follow these procedures could result in moderate or serious injury.

METERING DEVICE

Capillary Tube Systems

WARNING

CUT/SEVER HAZARD

Be careful with the sharp edges and corners. Wear protective clothing and gloves, etc.

Failure to do so could result in serious injury.

All units are equipped with capillary tube metering devices.

Checking for restricted capillary tubes.

1. Connect pressure gauges to unit.

2. Start the unit in the cooling mode. If after a few minutes of operation the pressures are normal, the check valve

and the cooling capillary are not restricted.

CHECK VALVE

A unique two-way check valve is used on the reverse cycle

heat pumps. It is pressure operated and used to direct the

ow of refrigerant through a single lter drier and to the

proper capillary tube during either the heating or cooling cycle.

One-way Check Valve (Heat Pump Models)

NOTE: The slide (check) inside the valve is made of teon. Should it become necessary to replace the check valve, place a wet cloth around the valve to prevent overheating

during the brazing operation.

CHECK VALVE OPERATION

In the cooling mode of operation, high pressure liquid enters

the check valve forcing the slide to close the opposite port

(liquid line) to the indoor coil. Refer to refrigerant ow chart. This directs the refrigerant through the lter drier and cooling

capillary tube to the indoor coil.

3. Switch the unit to the heating mode and observe the gauge readings after a few minutes running time. If the system pressure is lower than normal, the heating

capillary is restricted.

4. If the operating pressures are lower than normal in both

the heating and cooling mode, the cooling capillary is restricted.

In the heating mode of operation, high pressure refrigerant enters the check valve from the opposite direction, closing the port (liquid line) to the outdoor coil. The ow path of the refrigerant is then through the lter drier and heating

capillary to the outdoor coil.

Failure of the slide in the check valve to seat properly in

either mode of operation will cause ooding of the cooling

coil. This is due to the refrigerant bypassing the heating or cooling capillary tube and entering the liquid line.

COOLING MODE

In the cooling mode of operation, liquid refrigerant from condenser (liquid line) enters the cooling check valve

forcing the heating check valve shut. The liquid refrigerant

is directed into the liquid dryer after which the refrigerant

is metered through cooling capillary tubes to evaporator.

(Note: liquid refrigerant will also be directed through the

heating capillary tubes in a continuous loop during the

cooling mode).

HEATING MODE

In the heating mode of operation, liquid refrigerant from

the indoor coil enters the heating check valve forcing the cooling check valve shut. The liquid refrigerant is directed

into the liquid dryer after which the refrigerant is metered through the heating capillary tubes to outdoor coils. (Note: liquid refrigerant will also be directed through the cooling

capillary tubes in a continuous loop during the heating

mode).

REVERSING VALVE DESCRIPTION/OPERATION

WARNING

ELECTRIC SHOCK HAZARD

Disconnect power to the unit before servicing. Failure to follow this warning could result in serious injury or death.

The Reversing Valve controls the direction of refrigerant

ow 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. The

center tube on the opposite side is connected to the low pressure (suction) side of the system. The other two are

connected to the indoor and outdoor coils. Small capillary tubes connect each end of the main valve cylinder to the

“A” and “B” ports of the pilot valve. A third capillary is a common

return line from these ports to the suction tube on the main

valve body. Four-way reversing valves also have a capillary

tube from the compressor discharge tube to the pilot valve.

The piston assembly in the main valve can only be shifted

by the pressure differential between the high and low sides

of the system. The pilot section of the valve opens and closes ports for the small capillary tubes to the main valve to cause it to shift.

NOTE: System operating pressures must be near normal before valve can shift.

TESTING THE REVERSING VALVE SOLENOID COIL

WARNING

ELECTRIC SHOCK HAZARD

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.

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. Check for electrical continuity through the coil. If you do not have continuity replace the coil.

4. Check from each lead of coil to the copper liquid line as it leaves the unit or the ground lug. There should

be no continuity between either of the coil leads and ground; if there is, coil is grounded and must be

replaced.

5. If coil tests okay, reconnect the electrical leads.

6. Make sure coil has been assembled correctly.

NOTE: Do not start unit with solenoid coil removed from valve, or do not remove coil after unit is in operation. This will cause the coil to burn out.

Should the valve fail to shift from coooling to heating, block the air ow through the outdoor coil and allow the discharge pressure to build in the system. Then switch

the system from heating to cooling.

If the valve is stuck in the heating position, block the air ow through the indoor coil and allow discharge pressure to build in the system. Then switch the system from

heating to cooling.

Should the valve fail to shift in either position after

increasing the discharge pressure, replace the valve.

Dented or damaged valve body or capillary tubes can prevent the main slide in the valve body from shifting.

If you determing this is the problem, replace the reversing

valve.

After all of the previous inspections and checks have

been made and determined correct, then perform the “Touch Test” on the reversing valve.

CHECKING THE REVERSING VALVE

NOTE: You must have normal operating pressures before the reversing valve can shift.

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.

Check the operation of the valve by starting the system

and switching the operation from “Cooling” to “Heating” and then back to “Cooling”. Do not hammer on valve.

Occasionally, the reversing valve may stick in the heating

or cooling position or in the mid-position.

When sluggish or stuck in the mid-position, part of the

discharge gas from the compressor is directed back to the suction side, resulting in excessively high suction pressure.

Reversing Valve in Heating Mode

Touch Test in Heating/Cooling Cycle

WARNING

BURN HAZARD

Certain unit components operate at temperatures hot enough to cause burns.

Proper safety procedures must be followed,

and proper protective clothing must be

worn.

The only definite indications that the slide is in the midposition is if all three tubes on the suction side of the valve

are hot after a few minutes of running time.

NOTE: A condition other than those illustrated above, and on Page 44, indicate that the reversing valve is not shifting properly. Both tubes shown as hot or cool must be the same

corresponding temperature.

Failure to follow these procedures could result in minor to moderate injury.

Procedure For Changing 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.

6. Protect new valve body from heat while brazing with plastic heat sink (Thermo Trap) or wrap valve body with wet rag.

7. Fit all lines into new valve and braze lines into new

valve.

WARNING

EXPLOSION HAZARD

The use of nitrogen requires a pressure

regulator. Follow all safety procedures and wear protective safety clothing etc.

Failure to follow proper safety procedures could result in serious injury or death.

8. Pressurize sealed system with a combination of R-410A and nitrogen and check for leaks, using a suitable leak

detector. Recover refrigerant per EPA guidelines.

9. Once the sealed system is leak free, install solenoid coil

on new valve and charge the sealed system by weighing in the proper amount and type of refrigerant as shown on rating plate. Crimp the process tubes and solder the ends shut. Do not leave Schrader or piercing valves in the sealed system.

NOTE: When brazing a reversing valve into the system, it is

of extreme importance that the temperature of the valve does not exceed 250

Wrap the reversing valve with a large rag saturated with water. “Re-wet” the rag and thoroughly cool the valve after each brazing operation of the four joints involved.

°F at any time.

NOTICE

FIRE HAZARD

The use of a torch requires extreme care and proper

judgment. Follow all safety recommended precautions and protect surrounding areas with re proof materials. Have a re extinguisher readily available. Failure to follow this

notice could result in moderate to serious property damage.

1. Install Process Tubes. Recover refrigerant from sealed

system. PROPER HANDLING OF RECOVERED REFRIGERANT ACCORDING TO EPA REGULATIONS

IS REQUIRED.

2. Remove solenoid coil from reversing valve. If coil is to

be reused, protect from heat while changing valve.

3. Unbraze all lines from reversing valve.

4. Clean all excess braze from all tubing so that they will slip into ttings on new valve.

5. Remove solenoid coil from new valve.

The wet rag around the reversing valve will eliminate conduction of heat to the valve body when brazing the line

connection.

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.

Locked Rotor Voltage (L.R.V.) Test

Locked rotor voltage (L.R.V.) is the actual voltage available

at the compressor under a stalled condition.

Single Phase Connections

Disconnect power from unit. Using a voltmeter, attach one lead of the meter to the run “R” terminal on the compressor and the other lead to the common “C” terminal of the compressor. Restore power to unit.

Determine L.R.V.

Start the compressor with the volt meter attached; then stop the unit. Attempt to restart the compressor within a couple

of seconds and immediately read the voltage on the meter.

The compressor under these conditions will not start and will usually kick out on overload within a few seconds since the pressures in the system will not have had time to equalize. Voltage should be at or above minimum voltage of 197 VAC, as specied on the rating plate. If less than minimum, check for cause of inadequate power supply; i.e., incorrect wire size, loose electrical connections, etc.

Amperage (L.R.A.) Test

The running amperage of the compressor is the most important of these readings. A running amperage higher than that indicated in the performance data indicates that a problem exists mechanically or electrically.

Single Phase Running and L.R.A. Test

NOTE: Consult the specication and performance section

for running amperage. The L.R.A. can also be found on the rating plate.

Select the proper amperage scale and clamp the meter

probe around the wire to the “C” terminal of the compressor.

Turn on the unit and read the running amperage on the

meter. If the compressor does not start, the reading will indicate the locked rotor amperage (L.R.A.).

Overloads

The compressor is equipped with either an external or internal overload which senses both motor amperage and winding temperature. High motor temperature or amperage heats the overload causing it to open, breaking the common circuit within the compressor.

Heat generated within the compressor shell, usually due to recycling of the motor, is slow to dissipate. It may take anywhere from a few minutes to several hours for the

overload to reset.

Checking the Overloads

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

BURN HAZARD

Certain unit components operate at temperatures hot enough to cause burns.

Proper safety procedures must be followed,

and proper protective clothing must be

worn.

Failure to follow this warning could result in moderate to serious injury.

External Overloads

With power off, remove the leads from compressor terminals. If the compressor is hot, allow the overload to cool before starting check. Using an ohmmeter, test

continuity across the terminals of the external overload.

If you do not have continuity; this indicates that the

overload is open and must be replaced.

Interrnal Overloads

Some model compressors are equipped with an internal

overload. The overload is embedded in the motor

windings to sense the winding temperature and/or current draw. The overload is connected in series with the

common motor terminal.

Should the internal temperature and/or current draw become excessive, the contacts in the overload will open, turning off the compressor. The overload will automatically reset, but may require several hours before

the heat is dissipated.

Checking the Internal Overload

1. With no power to unit, remove the leads from the

compressor terminals.

2. Using an ohmmeter, test continuity between terminals C-S and C-R. If no continuity, the compressor overload is

open and the compressor must be replaced.

Single Phase Resistance Test

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.

the ohmmeter on the lowest scale (R x 1).

from terminals common to run (“C” to “R”).

Add values “C” to “S” and “C” to “R” together and

Resistance “S” to “R” should equal the total of “C” to “S” and “C” to “R.”

In a single phase PSC compressor motor, the highest

common connections (“S” to “C”). The lowest resistance is from the run to common. (“C” to “R”) Before replacing a compressor, check to be sure it is defective.

GROUND TEST

Use an ohmmeter set on its highest scale. Touch one lead to the compressor body (clean point of contact as a good connection is a must) and the other probe in turn to each compressor terminal. If a reading is obtained the compressor is grounded and must be replaced.

Check the complete electrical system to the compressor and compressor internal electrical system, check to be certain that compressor is not out on internal overload.

Many compressor failures are caused by the following conditions:

1. Improper air ﬂow over the evaporator.

2. Overcharged refrigerant system causing liquid to be returned to the compressor.

3. Restricted refrigerant system.

4. Lack of lubrication.

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nommoc slanimret morf retemmho eht fo sdael eht hcuoT retemmho eht fo sdael eht hcuot ,txeN .)”S“ ot ”C“( trats ot

.)”R“ ot ”S“( slanimret nur ot trats morf ecnatsiser kcehc

ot ”S“( snoitcennoc nur eht ot trats eht morf eb lliw eulav eht ot trats eht morf si ecnatsiser tsehgih txen ehT .)”R“

5. Liquid refrigerant returning to compressor causing oil to be washed out of bearings.

6. Noncondensables such as air and moisture in

the system. Moisture is extremely destructive to a refrigerant system.

7. Capacitor (see page 34).

CHECKING COMPRESSOR EFFICIENCY

The reason for compressor inefﬁciency is normally due

to broken or damaged suction and/or discharge valves, reducing the ability of the compressor to pump refrigerant gas.

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.

Complete evaluation of the system must be made whenever you suspect the compressor is defective. If the compressor has been operating for sometime, a careful examination must be made to determine why the compressor failed.

This condition can be checked as follows:

1. Install a piercing valve on the suction and discharge or liquid process tube.

2. Attach gauges to the high and low sides of the system.

3. Start the system and run a “cooling or heating perfor mance test.” If test shows:

A. Below normal high side pressure B. Above normal low side pressure C. Low temperature difference across coil

The compressor valves are faulty - replace the compressor.

COMPRESSOR REPLACEMENT

Recommended procedure for compressor replacement

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.

1. Be certain to perform all necessary electrical and refrigeration tests to be sure the compressor is actually defective before replacing.

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.

2. Recover all refrigerant from the system though the process tubes. PROPER HANDLING OF

RECOVERED REFRIGERANT ACCORDING TO EPA REGULATIONS IS REQUIRED. Do not use

gauge manifold for this purpose if there has been

a burnout. You will contaminate your manifold and

hoses. Use a Schrader valve adapter and copper tubing for burnout failures.

WARNING

HIGH TEMPERATURES

Extreme care, proper judgment and all safety procedures must be followed when testing, troubleshooting, handling or working around unit while in operation with high temperature

components. Wear protective safety aids

such as: gloves, clothing etc.

Failure to do so could result in serious burn

injury.

3. After all refrigerant has been recovered, disconnect

suction and discharge lines from the compressor and remove compressor. Be certain to have both suction and discharge process tubes open to atmosphere.

4. Carefully pour a small amount of oil from the suction stub of the defective compressor into a clean container.

5. Using an acid test kit (one shot or conventional kit), test

the oil for acid content according to the instructions

with the kit.

6. If any evidence of a burnout is found, no matter how slight, the system will need to be cleaned up following

proper procedures.

7. Install the replacement compressor.

WARNING

EXPLOSION HAZARD

The use of nitrogen requires a pressure

regulator. Follow all safety procedures and wear protective safety clothing etc.

Failure to follow proper safety procedures result in serious injury or death.

8. Pressurize with a combination of R-410A and nitrogen

and leak test all connections with an electronic or

Halide leak detector. Recover refrigerant and repair any leaks found.

Repeat Step 8 to insure no more leaks are present.

9. Evacuate the system with a good vacuum pump capable of a nal vacuum of 200 microns or less. The system

should be evacuated through both liquid line and suction

line gauge ports. While the unit is being evacuated, seal

all openings on the defective compressor. Compressor

manufacturers will void warranties on units received not

properly sealed. Do not distort the manufacturers tube connections.

CAUTION

FREEZE HAZARD

Proper safety procedures must be followed, and proper protective clothing must be worn when working with liquid refrigerant.

NOTICE

FIRE HAZARD

The use of a torch requires extreme care and proper

judgment. Follow all safety recommended precautions and protect surrounding areas with re proof materials. Have a re extinguisher readily available. Failure to follow this

notice could result in moderate to serious property damage.

Failure to follow these procedures could result in minor to moderate injury.

10. Recharge the system with the correct amount of refrigerant. The proper refrigerant charge will be

found on the unit rating plate. The use of an accurate

measuring device, such as a charging cylinder,

electronic scales or similar device is necessary.

SPECIAL PROCEDURE IN THE CASE OF MOTOR COMPRESSOR BURNOUT

WARNING

ELECTRIC SHOCK HAZARD

Turn off electric power before service or installation.

Failure to do so may result in personal 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.

Failure to follow these procedures could result in serious injury or death.

WARNING

EXPLOSION HAZARD

The use of nitrogen requires a pressure regulator. Follow all safety procedures and wear protective safety clothing etc.

Failure to follow proper safety procedures result in serious injury or death.

Recover all refrigerant and oil from the system.

Remove compressor, capillary tube and ﬁlter drier

2. from the system.

Flush evaporator condenser and all connecting tubing with dry nitrogen or equivalent. Use approved

ﬂushing agent to remove all contamination from

system. Inspect suction and discharge line for carbon deposits. Remove and clean if necessary. Ensure all acid is neutralized.

Reassemble the system, including new drier strainer

4. and capillary tube.

Proceed with step 8-10 on previous page.

ROTARY AND SCROLL COMPRESSOR SPECIAL TROUBLESHOOTING AND SERVICE

Basically, troubleshooting and servicing rotary compressors is the same as on the reciprocating compressor with only one main exception:

NEVER, under any circumstances, liquid charge a rotarycompressor through the LOW side. Doing so would cause permanent damage to the new compressor. Use a charging

adapter.

ROUTINE MAINTENANCE

WARNING

ELECTRIC SHOCK HAZARD

Turn off electric power before inspections, maintenances, or service.

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.

COILS AND BASE PAN

The indoor coil (evaporator coil), the outdoor coil (condenser coil) and base pan should be inspected periodically (yearly or bi-yearly) and cleaned of all debris (lint, dirt, leaves, paper, etc.). Clean the coils and base pan with a soft brush and compressed air or vacuum. If using a pressure washer, be careful not to bend the aluminium n pack. Use a sweeping up and down motion in the direction of the vertical aluminum n pack when pressure cleaning coils.

Cover all electrical components to protect them from

water or spray. Allow the unit to dry thoroughly before

reinstalling it in the sleeve.

WARNING

EXCESSIVE WEIGHT HAZARD

Use two people to lift or carry the unit, and wear

proper protective clothing.

Failure to do so may result in personal injury.

WARNING

CUT/SEVER HAZARD

Be careful with the sharp edges and corners. Wear protective clothing and gloves, etc.

Failure to do so could result in serious injury.

NOTICE

Units are to be inspected and serviced by qualied service

personnel only. Use proper protection on surrounding

property. Failure to follow this notice could result in

moderate or serious property damage.

NOTICE

Do not use a caustic coil cleaning agent on coils or base

pan. Use a biodegradable cleaning agent and degreaser,

to prevent damage to the coil and/or base pan.

NOTE: .napesabrosliocnotnegagninaelclioccitsuacaesutonoD

Use a biodegradable cleaning agent and degreaser. The use of harsh cleaning materials may lead to deterioration of the

NOTE: It is extremely important to insure that none o f the electrical

and/or electronic parts of the unit get wet. Be sure to cover all electrical components to protect them from water or spray.

BLOWER WHEEL / HOUSING / CONDENSER FAN / SHROUD

Inspect the indoor blower and its housing, evaporator blade, condenser fan blade and condenser shroud periodically (yearly or bi-yearly) and clean of all debris (lint, dirt, mold, fungus, etc.). Clean the blower housing area and blower wheel with an antibacterial / antifungal

cleaner. Use a biodegradable cleaning agent and degreaser on condenser fan and condenser shroud.

Use warm or cold water when rinsing these items. Allow all items to dry thoroughly before reinstalling

them.

ELECTRONIC / ELECTRICAL / MECHANICAL

Periodically (at least yearly or bi-yearly): inspect all control components: electronic, electrical and mechanical, as well as the power supply. Use proper testing instruments (voltmeter, ohmmeter, ammeter, wattmeter, etc.) to perform electrical tests. Use an air

conditioning or refrigeration thermometer to check room, outdoor and coil operating temperatures.

AIR FILTER

The air 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 the lter thoroughly before

reinstalling. Use caution as the coil surface can be sharp.

TO REMOVE, WASH AND REPLACE FILTER

Lower front panel. Use handle on lter to ex lter up and out of retainer. Remove lter from unit. Clean lter monthly or more frequently if needed. Refer to accessories section for lter options.

BLOWER/FAN MOTOR

The motor is permanently lubricated.

ROUTINE MAINTENANCE (Continued)

NOTICE

Do not drill holes in the bottom of the drain pan or the

underside of the unit. Not following this notice could result in damage to the unit or condensate water leaking inappropriately which could cause water damage to

surrounding property.

SLEEVE / DRAIN

Inspect the sleeve and drain system periodically (at least yearly or bi-yearly) and clean of all obstructions and debris. Clean both areas with an antibacterial and antifungal cleaner. Rinse both items thoroughly with water and ensure that the drain outlets are operating correctly. Check the sealant around the sleeve and reseal areas as needed.

DECORATIVE FRONT COVER

Clean the front cover when needed. Use a mild detergent. Wash and rinse with warm water. Allow it to dry

thoroughly before reinstalling it in the chassis.

The decorative front and the cabinet can be cleaned with warm water and a mild liquid detergent. Do NOT use solvents or hydrocarbon based cleaners such as acetone, naphtha, gasoline, benzene, etc.

Use a damp (not wet) cloth when cleaning the control area to prevent water from entering the unit, and possibly

damaging the electronic control.

CLEARANCES

Inspect the surrounding area (inside and outside) to ensure that the unit’s clearances have not been compromised or

altered.

Accumulator

Compressor

Outdoor Grille

Discharge Air

Fresh Air Vent

Reversing Valve

Evaporator Coil

Condenser Coil

Electronic Control

Board

Control Key Pad

Support Bar

Blower Wheel

Air Intake From

Sides and Bottom

Fan/Blower Motor

Base Pan

Sleeve

Air Intake Vents

Fan Blade

Control Key Pad

(User Interface)

Chassis Pull

Out Handle

ROUTINE MAINTENANCE (Continued)

Standard lter cleaning, removal and installation instructions

Removing filter Filter dissassembly and cleaning

STEP 1.

Figure 1

STEP 1.

NOTE:

Figure 3

FILTER

FILTER GRIP

STEP 2.

Remove the filter by grabbing it from its handle, lifting it up and swinging it out.

Figure 2

FILTER GRIP

HANDLE

STEP 2. Swing the front frame open. Clean the front frame by washing

Figure 4

TOP TAB

FRONT FRAME WITH STANDARD MESH FILTER

Filter assembly

STEP 1.

( )

onto the filter frame.

Filter installation

Install the filter back into the unit by sliding the filter halfway up, tilt towards the front of you, then gently slide it up fully.

Do not force the filter into the unit.

ROUTINE MAINTENANCE (Continued)

After Maintenance/Repair Start-up Checklist and Notes

u Inspect and ensure that all components and accessories have been

installed properly and that they have not been damaged during the installation progress.

Check the condensate water drain(s) to ensure that they are adequate

for the removal of condensate water, and that they meet the approval of the end user.

Ensure that all installation instructions concerning clearances around

the unit have been adhered to. Check to ensure that the unit air lter,

indoor coil, and outdoor coil are free from any obstructions.

u Ensure that the circuit breaker(s) or fuse(s) and supply circuit wire

size have been sized correctly. If the unit was supplied with a power supply cord, insure that it is stored properly.

Ensure that the entire installation is in compliance with all applicable

national and local codes and ordinances having jurisdiction.

Secure components and accessories, such as a decorative front

cover.

Start the unit and check for proper operation of all components in

each mode of operation.

Instruct the owner or operator of the units operation, and the

manufacturer's Routine Maintenance.

Heat pumps operate differently

If your unit is a "Y", or heat pump model, there are some things that you will want to be aware of. Some functions of a heat pump differ from your unit when it is used for heating:

1. It is normal for ice to form on the outdoor coil of the heat pump.

Moisture in the outside air, passing over the coil when very cold, will form ice.

2. If the outdoor temperature drops below 37° F (3° C), your heat

pump will automatically turn on the electric resistance heat. When the temperature rises to 40° F (4° C), the compressor will resume the heat pump operation. If your unit is a 115 volt model (YS10), it is designed for use in warmer climates and does not have an electrical heat feature, and will not provide adequate heat below 37° F (2.8° C).

NOTE:

A log for recording the dates of maintenance and/or service is

recommended.

Present the owner or operator of the equipment with the name,

address and telephone number of the Authorized Friedrich Warranty Service Company in the area for future reference if necessary.

NOTE: This is a warm weather appliance

The 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 air control to Fresh Air. This will bring in a supply of cooler outside air.

mode and set the Fresh Air/Exhaust

Condensation is normal

Air conditioners actually pump the heat and humidity from your room to the outside. Humidity becomes 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 operation.

Frosting

This usually occurs because of insufcient airow across the coils, a dirty lter, cool damp weather, or all of these. Set the SYSTEM mode to FAN

ONLY will probably prevent the frosting from recurring.

and the frost will disappear. Setting the thermostat a little warmer

Noises

All air conditioners make some noise. Friedrich units are designed to operate as quietly as possible. An air conditioner mounted in a wall is quieter than one mounted in a window. It is important to ensure that the chassis seal gasket (Item 14) is properly installed (refer to installation instructions).

Service and Assistance

Before calling for service, please check the “Troubleshooting Tips” section

on pages 40 and 41. This may help you to nd the answer to your problem,

avoid unnecessary service calls, and save you the cost of a service call if the problem is not due to the product itself. If you have checked the “Basic Troubleshooting” section and still need help, it is available as follows:

You can nd the name of your local Authorized Service Provider by visiting

our web site at www.friedrich.com.

If you require further assistance

You can call the Technical Assistance Center at 1-800-541-6645.

Before calling, please make sure that you have the complete model and serial number, and date of purchase of your equipment available. By providing us with this information, we will be better able to assist you.

Our specialists are able to assist you with:

u Specications and Features of our equipment.

u Referrals to dealers, and distributors.

u Use and Care Information.

u Recommended maintenance procedures.

u Installation information.

u Referrals to Authorized Service Providers and Parts depots.

Available Accessories

DC-2 Drain Kit – Part No. 01900235

In some installations, excess condensate water caused by extremely humid conditions, may result in an undesirable water drip such as on a patio or over an entryway. MODEL DC-2 DRAIN KIT (Part No. 01900-235) can be installed to drain excess condensation to an alternate location.

Carbon Filter Kits

The kits vary depending on the chassis size (small, medium, large). Each

kit contains three (3) lters.

WCFS – Carbon lter kit for small chassis models.

WCFM – Carbon lter kit for medium chassis models.

WCFL – Carbon lter kit for large chassis models.

FriedrichLink™

KWIFI - FriedrichLink™ Adaptor Accessory for wireless control and additional programming options.

Window Installation Kits (Standard in Kühl Models without Heat)

KWIKS – For all ES and YS models.

KWIKM – For all EM and YM models.

KWIKL – For all EL and YL models.

See www.friedrich.com for additional accessories for your unit.

How to Check the Diagnostic Codes Erasing the Diagnostic Codes

See codes chart on next page.

AUTO FAN

SET POINT

To check the active system errors, press the & keys for 3 sec.

FAN

SPEED

An “E” will appear in the display. Use the or keys to scroll through any system errors. Only active errors will be shown. The display error mode will time out in 15 seconds with no key activity.

AUTO FAN

SET POINT

Press and hold the and buttons simultaneously for 3 sec.

TIMER

SCHEDULE

The “E” will blink for 3 seconds.

Press the key to view the next error. Press the SELECT key to exit.

AUTO FAN

SET POINT

Normal display.

AUTO FAN

SET POINT

After the “E” blinks for 3 seconds, the display returns to normal.

ERROR CODES AND ALARM STATUS

- 127 / 187 - 253)

Shorted

operate

Open or Shorted

continues to operate.

allows.

reset.

consecutive minutes

resume operation after lockout time.

hour

Hour

Only

Open or Shorted

ON.

electric heat to satisfy heating demand. Unplug and replug to reset.

Set error code 16 ON. When cleared return unit to normal.

Configuration

consecutive Minutes

than 45°F.

Unit must be a Heat Pump with electric heat.

ERROR CODES AND ALARM STATUS

Error

Code

Front Panel Button Stuck For More

Than 20 Seconds

Input Voltage Out of Specification (103

Indoor Temperature Sensor is Open or

Indoor Coil Temperature Sensor is

Outdoor Coil Temperature Sensor is

Open or Shorted

6 Outdoor Coil > (greater than) 175 F

Indoor Coil < (less than) 30 F for 2

Unit Cycles > (grater than) 9 Times per

Unit Cycles < (less than) 3 Times per

10 Room Freeze Protection

Not Applicable Not Applicable

12 Discharge Air > (greater than) 185 F

Problem Control Board's Action

Continue to monitor for "OPEN" (Unstuck) switch. Do not process switch

ENSURE FRONT COVER DOES NOT DEPRESS BUTTONS

input.

Open all relays until voltage is back within specs. Resume operation

Set temp to 75°F in COOLING or 68°F in HEATING. Unit continues to

Control Board sets temp to a default of 40°F. Override sensor. Unit

Sets temp to 20°F. Override sensor. Continue operation. Use Elec Heat if available for HEATING. If not available use HEAT PUMP if outdoor temp

Shut down for 5 min. Resume operation for 3 min. Continues to monitor. If test fails 3 times, the unit operation is locked out. Unplug and replug to

Turn compressor off. Run High Fan speed. When coil temp reachs 45°F

Continue operation. Continue to monitor. Take no action. Log Only.

Only used if Electric Heat is available. Run High Speed and Electric heat until room temp reaches 46°F. Display "FRZ" during operation. Logged

Shutdown heat pump and electric heater. Run high fan speed until temp is 100°F. Resume operation. Third occurance in 1 hour locks unit out.

13 Not Applicable Not Applicable

Discharge Air Temperature Sensor is

15 Heat Pump/Reversing Valve Error

16 Temperature Beyond Operating Limits

Equipment Doesn't Meet Minimum

Not Applicable Not Applicable

Outdoor Coil Temperature < 30 F for 2

Frost Protection (for Heat Pump Only

Unit- YS10M10)

Not Applicable Not Applicable

Key Sequence

To Access Error Codes

Press the fan speed and key for 3 seconds

Reset Error Codes & Error History Press

Override Sensor. Set temp to 75°F. Continue to monitor. Set error code 14

If indoor coil temp < (Lesser than) ambient temp for 5 minutes. Unit uses

Ambient temp < (less than) 0°F and ambient temp > (greater than) 130°F.

Must have compressor enabled and at least 2 fan speeds

Unit will use electric heat to satisfy heating demands until temp is greater

Unit will run active defrost for up to 6 minutes when Heat Pump run time is greater than 60 minutes and outdoor coil temp is 26 F or less.



+ timer/schedule for 3 seconds



Action

When you have entered the Error Codes section, an “E” will appear. Use the up and down keys to scroll through error codes. Only active error codes will display.



Test Mode

This function is used to test the compressor operation. By turning it on, it allows the service technician to bypass the compressor’s 3 minute time delay.

AUTO FAN

SET POINT

TIMER

SCHEDULE

FAN

Press the , , & buttons simultaneously for 3 seconds.

FAN

MODE

SPEED

This will activate the test mode.

The ON icon will appear for 5 seconds and the display will then revert to the normal display. The test mode will time out after 1 hour. To cancel test mode, unplug and replug the power cord.

AUTO FAN

Normal display.

SET POINT

THERMISTORS’ RESISTANCE VALUES

(This Table Applies to All Thermistors)

TEMP

F MAXMINMIN MAXCENTR

-25 210.889 225.548 240.224 6.50 6.51

-20 178.952 190.889 202.825 6.25 6.25

-15 151.591 161.325 171.059 6.03 6.03

-10 128.434 136.363 144.292 5.81 5.81

-5 108.886 115.340 121.794 5.60 5.60 0 92.411 97.662 102.912 5.38 5.38 5 78.541 82.812 87.083 5.16 5.16

10 66.866 70.339 73.812 4.94 4.94 15 57.039 59.864 62.688 4.72 4.72 20 48.763 51.060 53.357 4.50 4.50 25 41.786 43.654 45.523 4.28 4.28 30 35.896 37.415 38.934 4.06 4.06 31 34.832 36.290 37.747 4.02 4.02 32 33.803 35.202 36.601 3.97 3.97 33 32.808 34.150 35.492 3.93 3.93 34 31.846 33.133 34.421 3.89 3.89 35 30.916 32.151 33.386 3.84 3.84 36 30.016 31.200 32.385 3.80 3.80 37 29.144 30.281 31.418 3.75 3.75 38 28.319 29.425 30.534 3.76 3.77 39 27.486 28.532 29.579 3.67 3.67 40 26.697 27.701 28.704 3.62 3.62 45 23.116 23.931 24.745 3.40 3.40 50 20.071 20.731 21.391 3.18 3.18 55 17.474 18.008 18.542 2.96 2.96 60 15.253 15.684 16.115 2.75 2.75 65 13.351 13.697 14.043 2.53 2.53 66 13.004 13.335 13.666 2.48 2.48 67 12.668 12.984 13.301 2.44 2.44 68 12.341 12.644 12.947 2.39 2.39 69 12.024 12.313 12.603 2.35 2.35 70 11.716 11.993 12.269 2.31 2.31 71 11.418 11.682 11.946 2.26 2.26 72 11.128 11.380 11.633 2.22 2.22 73 10.846 11.088 11.329 2.18 2.18 74 10.574 10.804 11.034 2.13 2.13 75 10.308 10.528 10.748 2.09 2.09 76 10.051 10.260 10.469 2.04 2.04

77 9.800 10.000 10.200 2.00 2.00 78 9.550 9.748 9.945 2.03 2.03 79 9.306 9.503 9.699 2.07 2.07 80 9.070 9.265 9.459 2.10 2.10 81 8.841 9.033 9.226 2.13 2.13 82 8.618 8.809 9.000 2.17 2.17 83 8.402 8.591 8.780 2.20 2.20 84 8.192 8.379 8.566 2.23 2.23 85 7.987 8.172 8.358 2.27 2.27 86 7.789 7.972 8.155 2.30 2.30 87 7.596 7.778 7.959 2.33 2.33 88 7.409 7.589 7.768 2.37 2.37 89 7.227 7.405 7.583 2.40 2.40 90 7.050 7.226 7.402 2.43 2.43 91 6.878 7.052 7.226 2.47 2.47 92 6.711 6.883 7.055 2.50 2.50

93 94 95 96 97 98

99 100 105 110 115 120

RESISTENCE (K Ohms)

6.548

6.718

6.558

6.403

6.252

6.105

5.961

5.822

5.686

5.060

4.511

4.030

3.606

6.390

6.237

6.087

5.942

5.800

5.663

5.529

4.912

4.371

3.898

3.482

6.889

6.727

6.569

6.417

6.268

6.122

5.981

5.844

5.208

4.651

4.161

3.730

RESISTANCE

TOLERANCE %

2.53

2.57

2.60

2.63

2.67

2.70

2.73

2.77

2.93

3.10

3.27

3.43

2.53

2.57

2.60

2.63

2.67

2.70

2.73

2.77

2.93

3.10

3.27

3.43

ROOM AIR CONDITIONER UNIT PERFORMANCE TEST DATA SHEET

JOB NAME________________________________ TECHS NAME____________________________________

DATE: _______________ MODEL:_______________ SERIAL:________________ HOW IS ALL OF THE INSTALLATION? GOOD BAD

YES NO

____ ____

____

____ ____ ____ ____ ____

IS A C HA S S IS S E AL G AS K E T I NT AL LE D ? IS T HE FR E S H/E XAU S T AI R V E NT OP E N? IS A FR I E DR IC H S LEE VE I NS TA L LE D? IS A FR I E DR IC H OUT DO OR G R IL LE IN S TA LLE D? IS MAI NT ENA NC E B E ING P E R FO R ME D? ____ ____

is checked use back of sheet for explanation

If NO

E LE CT R IC AL :

LINE VOLTAGE (STATIC) --------- VOLTS START UP VOLTAGE --------- VOLTS AMPERAGE DRAW --------- AMPS (COOL) AMPERAGE DRAW --------- AMPS (HEAT) C OMP R E S S OR LOCKED R

RUNNING AMPERAGE DRAW --------- AMPS

IN DO OR T E MP ER AT UR E S : INDOOR AMBIENT TEMPERATURE -------- F RELATIVE HUMIDITY (RH) INDOOR -------- %

DISCHARGE AIR TEMPERATURE (

RETURN AIR TEMPERATURE (INDOOR) ---------- F --------- F

O UT DO OR T EMPE RAT UR E :

OUTDOOR AMBIENT TEMPERATURE --------- F RH OUTDOOR RELATIVE HUMIDITY CONDENSER

OTOR AMPS --------- AMPS

INDOOR) ---------- F --------- F

C OO L HE A T

--------- %

DISCHARGE AIR TEM INTAKE AIR TEMPERATURE (OUTDOOR) --------- F ---------- F

APPLICATION USE ------------------------- ROOM (RESIDENTIAL OR COMMERCIAL)

COOLING OR HEATING

T his is a ge ner al guide . p lea se c onsult ma nua l J or M.

PERATURE (OUTDOOR) --------- F ---------- F

AREA W ---------- X L ----------- X H ----------- = SQ/CU/FT ------------

This is a general guide. Please consult manual J or M for exact load calculations.

1. If heavily shaded, reduce capacity by 10%.

2. If very sunny, add 10%.

3. Add 500 BTU/hr per person over 2 people.

4. Add 4,000 BTU/hr if area is a kitchen.

TROUBLESHOOTING TIPS

NOTE:

To more accurately identify the problem, rst check for current maintenance

alerts and their history.

Problem Possible Cause Possible Solution

Unit does not operate.

Unit Trips Circuit Breaker or Blows Fuses.

LCDI Power Cord Trips (Reset Button Pops Out).

Unit Does Not Cool/Heat

On And Off Too Frequently.

The unit is turned to the off position,

The LCDI power cord is unplugged.

The LCDI power cord has tripped (Reset button has popped out).

The circuit breaker has tripped or the supply circuit fuse has blown.

There has been a local power

failure.

Other appliances are being used on

the same circuit.

An extension cord is being used.

The circuit breaker or time-delay fuse is not of the proper rating.

The LCDI power cord can trip

(Reset button pops out) due to disturbances on your power supply line.

Electrical overload, overheating, or cord pinching can trip (Reset button pops out) the LCDI power cord.

NOTE: A damaged power supply cord must be replaced with a new power supply cord

obtained from the product manufacturer and must not be repaired.

The return/discharge air grille is blocked.

Windows or doors to the outside are

open.

The temperature is not set at a cool

enough/warm enough setting.

The indoor coil or outdoor coil is

dirty or obstructed.

There is excessive heat or moisture (cooking, showers, etc.) in the room.

The temperature of the room you

are trying to cool is extremely hot.

Turn the unit to the on position and raise or

lower temperature setting (as appropriate) to call for operation.

Plug into a properly grounded 3 prong

receptacle. See “Electrical Rating Tables” on pg. 6 for the proper receptacle type for your unit.

Press and release RESET (listen for click;

Reset button latches and remains in) to resume operation.

Reset the circuit breaker, or replace the fuse as

applicable. If the problem continues, contact a licensed electrician.

The unit will resume normal operation once

power has been restored.

The unit requires a dedicated outlet circuit, not

shared with other appliances.

Do NOT use an extension cord with this or any

other air conditioner.

Replace with a circuit breaker or time-delay

fuse of the proper rating. See “Electrical Rating Tables” on pg. 6 for the proper circuit breaker/fuse rating for your unit. If the problem continues, contact a licensed electrician.

Press and release RESET (listen for click; Reset button latches and remains in) to resume normal operation.

Once the problem has been determined and

corrected, press and release RESET (listen for click; Reset button latches and remains in) to resume normal operation.

Ensure that the return and/or discharge air

paths are not blocked by curtains, blinds, furniture, etc.

Ensure that all windows and doors are closed.

Adjust the Temperature control to a cooler or

warmer setting as necessary.

remove obstruction.

Clean the coils, (See Routine Maintenance), or

remove obstruction.

Be sure to use exhaust vent fans while cooking

or bathing and, if possible, try not to use heat producing appliances during the hottest part of the day.

Allow additional time for the air conditioner to

cool off a very hot room.

TROUBLESHOOTING TIPS (Continued)

Problem Possible Cause Possible Solution

The outside temperature is below 60° F (16° C).

The digital control is set to fan cycling mode.

Unit Does Not Cool/Heat

On And Off Too Frequently (continued).

Unit Runs Too Much.

cooling capacity to match the heat gain of the room.

heating capacity to match the heat loss of the room.

This may be due to an excessive heat load in the room.

It may also be due to an improperly sized unit.

This may be normal for higher

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.

Since the fan does not circulate the room

air continuously at this setting, the room air does not mix as well and hot (or cold) spots may result. Using the continuous fan setting is recommended to obtain optimum comfort levels.

Check the cooling capacity of your unit to

ensure it is properly sized for the room in which it is installed. Room air conditioners are not designed to cool multiple rooms.

Check the heating capacity of your unit. Air

conditioners are sized to meet the cooling load, and heater size is then selected to meet the heating load. In extreme northern climates, room air conditioners may not be able to be used as a primary source of heat.

If there are heat producing appliances in use

in the room, or if the room is heavily occupied, the unit will need to run longer to remove the additional heat.

Be sure to use exhaust vent fans while cooking

or bathing and, if possible, try not to use heat producing appliances during the hottest part of the day.

your new air conditioner may result in the unit running longer than you feel it should. This may be more apparent, if it replaced an

You may notice that the discharge

air temperature of your new air conditioner may not seem as cold as you may be accustomed to from older units. This does not, however, indicate a reduction in the cooling capacity of the unit.

compared to older models.

capacity rating (Btu/h) listed on the unit’s rating

COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS

Compressor does not run

Fan motor

does not run

Possible Solution

Low voltage

Temperature not set cold enough or room air thermistor inoperative

Compressor hums but cuts off on overload

Open or shorted compressor windings

Open overload Test overload protector & replace if inoperative

Open capacitor Test capacitor & replace if inoperative

Inoperative system button

Broken, loose or incorrect wiring

Inoperative system button Test button & replace user interface if inoperative

Broken, loose or incorrect wiring Refer to applicable wiring diagram

Open capacitor Test capacitor & replace if inoperative

Fan speed button defective Replace user interface if inoperative

Inoperative fan motor

Check voltage at compressor. 115V & 230V units will operate at 10% voltage variance

Set temperature to lower than ambient position. Test thermistor and replace if inoperative.

Hard start compressor. Direct test compressor. If compressor starts, add starting components

Check for continuity & resistance

Test for continuity in all positions. Replace if inoperative switch or electronic board.

Refer to appropriate wiring diagrams to check wiring. Correct as needed.

Possible Solution

Test fan motor & replace if inoperative (be sure internal overload has had time to reset)

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Does not cool or

only cools slightly

melborP

Undersized unit Refer to industry standard sizing chart

Indoor ambient thermistor open or shorted

Dirty ﬁ launaM s’renwO ni dednemmocer sa naelC retl

Dirty or restricted condenser or evaporator coil

Poor air circulation Adjust discharge louvers. Use high fan speed

Fresh air or exhaust air door open

Low capacity - undercharge Check for leak & make repair

Compressor not pumping properly

See alarms and replace thermistor if needed.

Use pressure wash or biodegradable cleaning agent to clean

Close doors. Instruct customer on use of this feature

Check amperage draw against nameplate. If not conclusive, make pressure test

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COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS

Possible Solution esuaC elbissoP melborP

Replace fuse, reset breaker. If repeats, check

Unit does not run

Fuse blown or circuit tripped

Power cord not plugged in Plug it in

System button in “OFF” position Set correctly

Inoperative system button or open electronic control board

fuse or breaker size. Check for shorts in unit wiring & components

Test for continuity. Check alarms. Correct as needed.

Evaporator coil

freezes up

Compressor runs

continually & does

not cycle off

Loose or disconnected wiring control board or other components

Dirty ﬁ launaM s’renwO ni dednemmocer sa naelC retl

Restricted airﬂ ow

Inoperative thermistor Check alarms. Replace as necessary.

Short of refrigerant De-ice coil & check for leak

Inoperative fan motor Test fan motor & replace if inoperative

Partially restricted capillary tube

Excessive heat load

Restriction in line

Refrigerant leak

Compressor relay contacts stuck

Remote wall T-stat incorrectly wired Refer to appropriate wiring diagram

Check wiring & connections. Reconnect per wiring diagram

Possible Solution

Check for dirty or obstructed coil. Use pressure wash or biodegradable cleaning agent to clean

De-ice coil. Replace capillary tube.

Possible Solution

Unit undersized. Test cooling performance &

replace with larger unit if needed. See sizing chart.

Check for partially iced coil & check temperature split across coil

Find leak and repair.

Check operation of t-stat. Replace if contacts remain closed.

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Electronic control

board does not

turn unit off

Thermistor shorted Replace thermistor or electronic control board

Possible Solution

Compressor relay contacts stuck

Temperature set at coldest point

Incorrect wiring Refer to appropriate wiring diagrams

Unit undersized for area to be cooled

Defective thermistor Replace thermistor or electronic control board

Replace electronic control board

Turn to higher temp. setting to see if unit cycles off. If not, replace control board.

Refer to industry standard sizing chart

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COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS

Possible Solution esuaC elbissoP melborP

Overload inoperative. Opens too soon

Check operation of unit. Replace overload if system operation is satisfactory

Compressor runs

for short periods

only. Cycles on

overload

Unit does not

turn on

Compressor restarted before system pressures equalized

Low or ﬂ uctuating voltage

Incorrect wiring Refer to appropriate wiring diagram

Shorted or incorrect capacitor

Restricted or low air flow through condenser coil or evaporator coil

Compressor running abnormally hot

No power

Incorrect wiring Refer to appropriate wiring diagram

Defective thermistor Replace thermistor or electronic control board

Control’s default of 3 minutes wait delay timer inoperative. Replace board.

Check voltage with unit operating. Check for other appliances on circuit. Air conditioner should be in a dedicated circuit for proper voltage & fused separately

Test capacitor and replace if needed.

Check for proper fan speed or blocked coils. Correct as needed.

Check for kinked discharge line or restricted condenser. Refrigerant overcharge. Check

amperage, connections.

Possible Solution

Check power supply. Check LCDI plug. Check wire connections. Check if panel is locked.

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Noisy operation

Water leaks into

the room

Possible Solution

Poorly installed

Fan blade striking chassis Reposition - adjust motor mount

Compressor vibrating

Improperly mounted or loose cabinet parts refrigerant tubes

Evaporator drain pan overﬂ owing Clean obstructed drain trough

Condensation forming underneath base pan

Poor installation resulting in rain entering the room

Condensation on discharge grille louvers

Chassis gasket not installed Install gasket, per Installation manual

Downward slope of unit is too steep inward

Refer to Installation Manual for proper installation

Check that compressor grommets have not deteriorated. Check that compressor mounting parts are not missing

Check assembly & parts for looseness, rubbing & rattling pipes, etc.

Possible Solution

Evaporator drain pan broken or cracked. Reseal or replace. No chassis gasket installed. Install chassis gasket

Check installation instructions. Reseal as required

Dirty evaporator coil. Use pressure wash or biodegradable cleaning agent to clean. Environmental phenomena: point supply louvers upward. Put on high fan.

Refer to installation manual for proper installation

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COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS

Water “spitting”

into room

Excessive

moisture

Unit

short cycles

Possible Solution

Sublimation: When unconditioned saturated, outside air mixes with conditioned air, condensation forms on the cooler surfaces

Downward pitch of installation is too steep towards back of unit

Restricted coil or dirty ﬁ lter

Insufﬁ cient air circulation thru area to be air conditioned

Inadequate vapor barrier in building structure, particularly ﬂ oors

Defective thermistor Replace thermistor or electronic control board

Unit oversized See sizing chart. Correct as needed.

Chassis seal gasket not sealing or absent causting unit to short cycle

Ensure that foam gaskets are installed in between window panes & in between the unit & the sleeve. Also, ensure that fresh air/exhaust vents (on applicable models) are in the closed position & are in tact

Follow installation instructions to ensure that downward pitch of installed unit is no less than 1/4” & no more than 3/8”

Clean & advise customer of periodic cleaning & maintenance needs of entire unit

Possible Solution

Adjust louvers for best possible air circulation

Advise customer

Possible Solution

Check gasket. Reposition or replace as needed

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Prolonged off

cycles

Outside water

leaks

Restricted coil or dirty ﬁ lter

Defective indoor ambient thermistor or electronic control board

Defective remote wall t-stat

Evaporator drain pan cracked or obstructed

Water in compressor area

Obstructed condenser coil

Fan blade/slinger ring improperly positioned

Clean & advise customer of periodic cleaning & maintenance needs of entire unit

Possible Solution

Check alarms. Replace thermistor or electronic control board

Replace t-stat

Possible Solution

Repair, clean or replace as required

Detach shroud from pan & coil. Clean & remove old sealer. Reseal, reinstall & check

Use pressure wash or biodegradable cleaning agent to clean

Adjust fan blade to 1/2” of condenser coil ﬁ n pack

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HEAT / COOL ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS

Room temperature

uneven

(Heating cycle)

Unit will not defrost

(Heat pump

only models)

Does not heat

adequately

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Temperature below 32°F/ 0°C

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Exhaust or fresh air door open

Dirty ﬁ launaM s'renwO ni dednemmocer sa naelCretl

Unit undersized

Outdoor coil thermistor or electronic control board defective

Heater hi-limit control cycling on & off

Possible Solution

Check error codes. Replace as needed.Bad indoor ambient thermistor

Set at higher fan speed.Fan speed too low

Close doors, windows, etc.Opened door, windows, etc.

Enable ATSFATSF (room air sampling feature) disabled

Possible SolutionesuaC elbissoPmelborP

Replace thermistor.Bad outdoor coil thermistor

• On heat pumps with electric heat: no action needed

• On model YS10N10: do not operate below 37°F/ 0°C

• If outdoor air temp is higher than freezing, check

reversing valve, electric coil, outdoor thermistor, refrigerant circuits, etc.

• For proper operation: correct as needed

Possible Solution

Check if operating properly. Instruct customer on proper use of control

Check heat rise across coil. If unit operates efﬁ ciently, check if insulation can be added to attic or walls. If insulation is adequate, recommend additional unit or larger one

Check alarms (error codes). Replace thermistor or electronic control board.

Check for adequate fan air across heater. Check for open hi-limit control.

Shorted or open supplementary heater Do ohmmeter check.

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HEAT PUMP ROOM AIR CONDITIONERS: TROUBLE SHOOTING TIPS

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Incorrect wiring Refer to applicable wiring diagram

Defective solenoid coil Check for continuity of coil

Unit cools when

heat is called for

Reversing valve fails to shift

Inoperative system switch Check for continuity of system switch

Heating capillary tube partially restricted

Cooling adequate,

but heating

Check valve leaking internally

insufﬁ cient

Reversing valve failing to shift completely; bypassing hot gas

TROUBLESHOOTING CHART - HEAT PUMP

Block condenser coil & switch unit to cooling. Allow pressure to build up in system, then switch to heating. If valve fails to shift, replace valve.

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Check for partially starved outer coil. Replace heating capillary tube

Switch unit several times from heating to cooling. Check temperature rise across coil. Refer to speciﬁ cation sheet for correct temperature rise

Denergize solenoid coil, raise head pressure, energize solenoid to break loose. If valve fails to make complete shift, replace valve.

REFRIGERANT SYSTEM DIAGNOSIS - COOLING CYCLE

LOW SUCTION PRESSURE HIGH SUCTION PRESSURE LOW HEAD PRESSURE HIGH HEAD PRESSURE

Low Load Conditions High Load Conditions Low Load Conditions High Load Conditions

Low Air Flow Across High Air Flow Across Refrigerant System Low Air Flow Across Indoor Coil Indoor Coil Restriction Outdoor Coil

Refrigerant System Reversing Valve not Reversing Valve not Overcharged Restriction Fully Seated Fully Seated

Undercharged Overcharged Undercharged Noncondensables (air)

metsyS ni

Moisture in System Defective Compressor Defective Compressor

HEAT PUMP ROOM AIR CONDITIONERS: TROUBLE SHOOTING TIPS

REFRIGERANT SYSTEM DIAGNOSIS - HEATING CYCLE

LOW SUCTION PRESSURE

Low Airﬂ ow

Across Outdoor Coil

Refrigerant System

Restriction

Undercharged Overcharged Undercharged

Moisture in System Defective Compressor Defective Compressor

HIGH SUCTION PRESSURE

Outdoor Ambient Too High

for Operation in Heating

Reversing Valve not

Fully Seated

LOW HEAD PRESSURE

Refrigerant System

Restriction

Reversing Valve not

Fully Seated

ELECTRICAL TROUBLESHOOTING CHART - HEAT PUMP

HEAT PUMP

HIGH HEAD PRESSURE

Outdoor Ambient Too High

For Operation In Heating

Low Airﬂ ow Across

Indoor Coil

Overcharged

Noncondensables (air)

in System

Is Line Voltage

Present at the Solenoid

YES

Is the Solenoid Coil Good?

YES

Reversing Valve Stuck

Replace the Reversing Valve

SYSTEM COOLS WHEN

HEATING IS DESIRED.

Is the Selector Switch

Set for Heat?

Replace the Solenoid Coil

TROUBLESHOOTING TOUCH TEST CHART: TO SERVICE REVERSING VALVES

NORMAL FUNCTION OF VALVE

VALVE

OPERATING

CONDITION

Normal Cooling

Normal Heating

Valve will not

shift from cool

to heat.

Valve will not

shift from cool

to heat.

Starts to shift

but does not

complete

reversal.

Apparent leap in heating.

Will not shift

from heat to

cool.

SUCTION TUBE

from Compressor

DISCHARGE TUBE

1 2 3 4 5 6 POSSIBLE CAUSES CORRECTIONS

from Compressor

SUCTION TUBE to

DISCHARGE TUBE

Hot Cool

to Compressor

Tube to INSIDE

Compressor

Tube to INSIDE

Cool

as (2)

Hot

as (1)

COIL

Tube to OUTSIDE

COIL

Tube to OUTSIDE

Hot

*TVB TVB

as (1)

Cool

*TVB TVB

as (2)

LEFT Pilot

Capillary Tube

LEFT Pilot

Capillary Tube

RIGHT Pilot

Capillary Tube

RIGHT Pilot

Capillary Tube

* TEMPERATURE OF VALVE BODY

** WARMER THAN VALVE BODY

MALFUNCTION OF VALVE

Check Electrical circuit and coil

Check refrigeration charge

Hot Cool

Cool, as (2)

Hot,

*TVB Hot Pilot valve okay. Dirt in one bleeder hole.

as (1)

Hot Cool

Warm Cool

Hot Warm Warm Hot *TVB Hot

Cool, as (2)

Hot,

*TVB *TVB Clogged pilot tubes.

as (1)

Hot,

Hot Hot

as (1)

Hot,

*TVB Warm Defective Compressor. Replace compressor

as (1)

Pressure differential too high. Recheck system.

Piston cup leak

Both ports of pilot open. (Back seat port did not close).

Not enough pressure differential at start of stroke or not enough ﬂ ow to maintain pressure differential.

Hot Warm Warm Hot Hot Hot Both ports of pilot open.

Valve hung up at mid-stroke. Pumping

Hot Hot Hot Hot Hot Hot Both ports of pilot open.

Hot,

Cool,

*TVB *TVB Piston needle on end of slide leaking.

as (2)

Cool,

**WVB **WVB Pilot needle and piston needle leaking.

as (2)

Cool,

*TVB *TVB Pressure differential too high.

as (2)

Hot Cool

as (1)

Hot,

Cool,

Hot *TVB Dirt in bleeder hole.

as (2)

Cool,

Hot *TVB Piston cup leak.

as (2)

Cool,

as (2)

Cool,

Warm *TVB Defective compressor. Replace compressor

as (2)

Hot Cool

Warm Cool

as (1)

Warm,

as (1)

volume of compressor not sufﬁ cient to maintain reversal.

Clogged pilot tube.

NOTES:

.tiucric lacirtcele riapeR .lioc ot egatlov oN

.lioc ecalpeR .lioc evitcefeD

Deenergize solenoid, raise head pressure, reenergize solenoid to break dirt loose. If unsuccessful, remove valve, wash out. Check on air before installing. If no movement, replace valve, add strainer to discharge tube, mount valve horizontally.

Stop unit. After pressures equalize, restart with solenoid energized. If valve shifts, reattempt with compressor running. If still no shift, replace valve.

Raise head pressure, operate solenoid to free. If still no shift, replace valve.

Raise head pressure, operate solenoid to free partially clogged port. If still no shift, replace valve.

Check unit for correct operating pressures and charge. Raise head pressure. If no shift, use valve with smaller port.

evlav ecalpeR .egamad ydoB

Raise head pressure, operate solenoid. If no shift, use valve with smaller ports.

evlav ecalpeR .egamad ydoB toH BVT* toH toH toH toH

Raise head pressure, operate solenoid. If no shift, use valve with smaller ports.

Raise head pressure, operate solenoid. If no shift, replace valve.

Operate valve several times, then recheck. If excessive leak, replace valve.

Stop unit. Will reverse during equalization period. Recheck system

Raise head pressure, operate solenoid to free dirt. If still no shift, replace valve.

Raise head pressure, operate solenoid. Remove valve and wash out. Check on air before reinstalling, if no movement, replace valve. Add strainer to discharge tube. Mount valve horizontally.

Stop unit. After pressures equalize, restart with solenoid deenergized. If valve shifts, reattempt with compressor running. If it still will not reverse while running, replace the valve.

.evlav ecalpeR .tolip evitcefeD toH toH

.metsys egrahcer ,kael riapeR .egrahc woL

ELECTRONIC CONTROL BOARD COMPONENTS IDENTIFICATION

Low Fan speed

Medium Fan speed

High Fan speed

Max Fan speed

(Heat+Cool units along with Cool models

SL28 and SL36 only have 3 fan speeds)

Reversing Valve

Heater Relay

User Interface Connector

Discharge Air Thermistor

(Check here for 3.3 Volts DC)

Heater Relay

Outdoor Coil Thermistor

(Blue)

Indoor Coil Thermistor

(Green)

Indoor Ambient Air Thermistor

(Check here for 3.3 Volts DC)

Transformer

115 or 230 VAC

Voltage Conguration

(See next page for details)

(Check here for

3.3 Volts DC)

Compressor Relay

(6.3 Amps/250VAC)

Fuse

When checking the 3.3 Volts DC for the thermistors, if there is no voltage or wrong voltage, replace control board. For thermistor testing, see page #57 for resistance values.

Kühl E-Control Service Kit

Configuration Instructions – Electronic Control Gen. 2

For Use with Kühl (cool only models) and Kühl + (cool and heat models) N models. Example SS08N

Notice: Please read these instructions completely before attempting configuration.

WARNING: Refer to the table below to determine the appropriate Electronic Control Kit part number by unit model

number prefix. Failure to install the correct Electronic Control Kit for the given unit model may result in failure of the product and/or a potentially unsafe operating condition.

FRIEDRICH ELECTRONIC CONTROL KIT PART # FRIEDRICH MODEL PREFIX

10-A

MS ,SS 01010626

LS 11010626

)woleb ees ,01SY edulcni ton seod*( LY ,MY ,*SY 21010626

LE ,ME ,SE 31010626

01N01SY 41010626

Contents:

• Main Board

• Indoor Air Sensor

• Indoor Coil Sensor

• Outdoor Coil Sensor

• Discharge Air Sensor

• Instruction Sheet

Procedure

You must first confirm and set the voltage of the electronic control to match your air conditioner.

Please perform the steps listed below before installation:

Step 1. Identify unit operating voltage from unit nameplate label.

Step 2. Set voltage selection on the electronic control by connecting the

Step 3. Consult service manual for electronic control replacement

jumper wire(s) to match the voltage listed on the unit nameplate label.

instructions and safety information.

115V Configuration

230V Configuration

Kϋhl Electronic Control

COOL ONLY Models

SS08N10-A, SS10N10-A, SS10N10-B, SS12N10-A, SS14N10-A, SS14N10A-A,

SM15N10-A, SS12N30-A, SS15N30-A, SM18M30-A, SM21N30-A, SM24N30-A

RED

ORANGE

BLACK

RED

TO CAPACITOR BRACKET

BLUE

BLACK

F A

WHITE

BROWN

WHITE

ELECTRONIC CONTROL

Make sure you have the

correct voltage

conguration

for your unit (See page 70).

POWER SUPPLY 230/208/115VAC

BLACK

WHITE

N E E R

/G W O

L L

TO CHASSIS

SCHEMATIC



CAP

- CAPACITOR

- COMPRESSOR

COMPR

- FAN MOTOR

MTR

- OVERLOAD PROTECTOR

OLP

- USER INTERFACE

- THERMAL FUSE

HLTF- HEATER LIMIT FUSE

L2 OR N

 

COMP



FAN

MOTOR

MAX

HIGH

MEDIUM

F22

LOW

COMPRESSOR

L E G E N D

(115 V)

NEUTRAL

(230/208 V)L2

OLP

FAN MTR

FAN

COM

CAP

OLP

COMPRESSOR

HERM COM

CAP

- THERMISTER

- COMBINATION TERMINAL

- GROUNDED LEAD SYMBOL

- INSULATOR

- HEATER ELEMENT

HTR

PART NO. REV.

92170019

BLACK

RED

TO CAPACITOR BRACKET

BLUE

Kϋhl Electronic Control

COOL ONLY Models

SL22N30-A, SL24N30-A, SL24N30-B

RED

BLUE

BLACK

A N

WHITE

M R E

BROWN

WHITE

ELECTRONIC CONTROL

POWER SUPPLY 230/208/115VAC

BLACK

WHITE

N E E R G

N E E R

/G W O

L L E

Y R O

TO CHASSIS

SCHEMATIC



- CAPACITOR

CAP

- COMPRESSOR

COMPR

- FAN MOTOR

MTR

- OVERLOAD PROTECTOR

OLP

- USER INTERFACE

- THERMAL FUSE

- HEATER LIM IT FUSE

L2 OR N

 



COMP

FAN

MOTOR

MAX

HIGH

MEDIUM

F22

LOW

L E G E N D

OLP

- REVERSING VALVE

- THERMISTER

- COMBINATION TERMINAL

- GROUNDED LEAD SYMBOL

- INSULATOR

- HEATER ELEMENT

HTR

NEUTRAL

FAN MTR

FAN

COMPRESSOR

HERM COM

PART NO. REV.

92170021

(115 V)

(230/208 V)L2

COM

CAP

Kϋhl Electronic Control

COOL ONLY Models

SL28N30-A, SL28N30-B, SL28N30-C

RED

BLUE

BLACK

ELECTRONIC CONTROL

RED

TO CAPACITOR BRACKET

BLUE

TO CHASSIS

SCHEMATIC



BLACK

A N

WHITE

R E H

BROWN

WHITE





SSR

BLUE





WHITE

FAN

MOTOR

MAX

HIGH

MEDIUM

F22

LOW

BLACK

WHITE

OLP

POWER SUPPLY 230/208/115VAC

N E E R

/G W O

L L

FAN MTR

(115 V)

NEUTRAL

(230/208 V)L2

FAN

COM

CAP

 

- CAPACITOR

CAP

- COMPRESSOR

COMPR

- FAN MOTOR

MTR

- OVERLOAD PROTECTOR

OLP

- USER INTERFACE

- THERMAL FUSE

- HEATER LIM IT FUSE

SSR - SOLID STATE RELAY



L2 OR N

COMP

SSR

OLP

COMPRESSOR

HERM COM

CAP

L E G E N D

- REVERSING VALVE

- THERMISTER

- COMBINATION TERMINAL

- GROUNDED LEAD SYMBOL

- INSULATOR

- HEATER ELEMENT

HTR

PART NO. REV.

92170013

TO CAPACITOR BRACKET

RED

BLUE

Kϋhl Electronic Control

COOL ONLY Models

SL36N30-A

RED

BLUE

BLACK

DISCHARGE AIR THERMISTOR

BLACK

F A N

WHITE

M R

E H

BROWN

WHITE



SSR

BLUE



WHITE

ELECTRONIC CONTROL

INDOOR AMBIENT THERMISTOR

VOLTAGE SELECTOR JUMPER WIRE

POWER SUPPLY 230/208/115VAC

BLACK

WHITE

N E E R G

/ W O

L L

TO CHASSIS

SCHEMATIC



- CAPACITOR

CAP

- COMPRESSOR

COMPR

- FAN MOTOR

MTR

- OVERLOAD PROTECTOR

OLP

- USER INTERFACE

- THERMAL FUSE

- HEATER LIMIT FU SE





L2 OR N

COMP

FAN

MOTOR

(115 V)

FAN

HERM COM

NEUTRAL

(230/208 V)L2

COM

CAP

MAX

HIGH

MEDIUM

F22

LOW

SSR

OLP

FAN MTR

COMPRESSOR

CAP

PTCR

L E G E N D

- REVERSING VALVE

- THERMISTER

- COMBINATION TERMINA L

- GROUNDED LEAD SYM BOL

- INSULATOR

- HEATER ELEMENT

HTR

PART NO. REV.

92170018

Kϋhl Electronic Control

COOL with ELECTRIC HEAT Models

ES12N33-A, ES15N33-A, EM18N34-A, EM24M34-A

TO CAPACITOR BRACKET

TO CHASSIS

RED

BLUE

HEATER

WIRING DIAGRAM

FAN

EH1 RELAY

EH2 RELAY

COMP RELAY

F1 RELAY

F2 RELAY

F3 RELAY

F4 RELAY

RV RELAY

LINE_L3

LINE_L5

ELECTRONIC CONTROL

J18

LINE_N2

BLACK

WHITE

POWER SUPPLY 230/208/115VAC

N E E R

/G W O

L L

RED

BLUE

BLACK

ORANGE

RED

E IT H W

A N

WHITE

R E H

BROWN

MOTOR

SCHEMATIC



- CAPACITORCAP

- COMPRESSOR

COMPR

- FAN MOTOR

MTR

OLP

- OVERLOAD PROTECTOR

- USER INTERFACE

UI TF - THERMAL FUSE

- HEATER LIM IT FUSE

L2 OR N

COMP





F32

EH1

EH2

LOW

MED

HIGH

ELECTRIC HEAT

HTR

L E G E N D

OLP

- REVERSING VALVE

- THERMISTER

- COMBINATION TERMINAL

- GROUNDED LEAD SYMBOL

- INSULATOR

- HEATER ELEMENT

HTR

FAN MTR

FAN

COMPRESSOR

HERM COM

PART NO. REV.

92170014

NEUTRAL

(230/208 V)L2

COM

CAP

(115 V)

Kϋhl Electronic Control

COOL WITH ELECTRIC HEAT Models

EL36N35-A

TO CAPACITOR BRACKET

TO CHASSIS

RED

BLUE

HEATER

PTCR

WIRING DIAGRAM

FAN

EH1 RELAY

EH2 RELAY

COMP RELAY

F1 RELAY

F2 RELAY

F3 RELAY

F4 RELAY

RV RELAY

LINE_L3

LINE_L5

ELECTRONIC CONTROL

J18

LINE_N2

BLACK

WHITE

POWER SUPPLY 230/208/115VAC

N E E R G

/ W O

L L

RED

BLUE

BLACK

ORANGE

RED

BLACK

E IT H W

A N

WHITE

M R

BROWN

WHITE



SSR

BLUE



MOTOR

SCHEMATIC



- CAPACITORCAP

- COMPRESSOR

COMPR

- FAN MOTOR

MTR

OLP

- OVERLOAD PROTECTOR

- USER INTERFACE

UI TF - TH ERMAL FUSE

- HEATER LIMIT FU SE





EH2

L2 OR N

COMP

F32

EH1

LOW

MED

HIGH

ELECTRIC HEAT

HTR

SSR

L E G E N D

OLP

- REVERSING VALVE

- THERMISTER

- COMBINATION TERMINA L

- GROUNDED LEAD SYM BOL

- INSULATOR

- HEATER ELEMENT

HTR

FAN MTR

FAN

COMPRESSOR

HERM COM

PART NO. REV.

92170020

NEUTRAL

(230/208 V)L2

COM

CAP

PTCR

(115 V)

Kϋhl Electronic Control

HEAT PUMP without ELECTRIC HEAT

YS10N10-A

BLACK

RED

TO CAPACITOR BRACKET

BLUE

TO CHASSIS

F A

SCHEMATIC

FAN

EH1 RELAY

EH2 RELAY

COMP RELAY

F1 RELAY

F2 RELAY

F3 RELAY

F4 RELAY

RV RELAY

LINE_L3

LINE_L5

ELECTRONIC CONTROL

J18

LINE_N2

BLACK

WHITE

POWER SUPPLY 230/208/115VAC

N E E R

/G W O

L L

BLACK

L U E

ORANGE

BLUE

BLACK

WHITE

BROWN

MOTOR



CAP

- CAPACITOR

- COMPRESSOR

COMPR

- FAN MOTOR

MTR

- OVERLOAD PROTECTOR

OLP

- USER INTERFACE

- THERMAL FUSE

HLTF- HEATER LIMIT FUSE

L2 OR N

COMP

 



F22

MAX

HIGH

MEDIUM

LOW

REVERSE CYCLE

COMPRESSOR

L E G E N D

(115 V)

NEUTRAL

(230/208 V)L2

OLP

FAN MTR

FAN

COMPRESSOR

HERM COM

COM

CAP

- REVERSING VALVE

- THERMISTER

- COMBINATION TERMINAL

- GROUNDED LEAD SYMBOL

- INSULATOR

- HEATER ELEMENT

HTR

PART NO. REV.

92170015

Kϋhl Electronic Control

HEAT PUMP models

YS12N33-A, YM18M34-A

HEATER

BLACK

RED

TO CAPACITOR BRACKET

BLUE

TO CHASSIS

F A N

SCHEMATIC

FAN

EH1 RELAY

EH2 RELAY

COMP RELAY

F1 RELAY

F2 RELAY

F3 RELAY

F4 RELAY

RV RELAY

LINE_L3

LINE_L5

ELECTRONIC CONTROL

J18

LINE_N2

BLACK

WHITE

POWER SUPPLY 230/208/115VAC

N E E R

/G W O

L L

BLACK

L U E

ORANGE

BLUE

BLACK

ORANGE

RED

WHITE

M R

BROWN

MOTOR



CAP

- CAPACITOR

- COMPRESSOR

COMPR

- FAN MOTOR

MTR

- OVERLOAD PROTECTOR

OLP

- USER INTERFACE

- THERMAL FUSE

HLTF- HEATER LIMIT FUSE

L2 OR N

COMP

 



F22

EH1

EH2

LOW

MEDIUM

HIGH

ELECTRIC HEAT

REVERSING CYCLE

COMPRESSOR

HTR

L E G E N D

(115 V)

NEUTRAL

(230/208 V)L2

OLP

FAN MTR

FAN

COM

CAP

OLP

COMPRESSOR

HERM COM

CAP

- REVERSING VALVE

- THERMISTER

- COMBINATION TERMINAL

- GROUNDED LEAD SYMBOL

- INSULATOR

- HEATER ELEMENT

HTR

PART NO. REV.

92170016

Kϋhl Electronic Control

HEAT PUMP model

YL24N35-A

HEATER

BLACK

RED

TO CAPACITOR BRACKET

BLUE

TO CHASSIS

F A N

SCHEMATIC

FAN

EH1 RELAY

EH2 RELAY

COMP RELAY

F1 RELAY

F2 RELAY

F3 RELAY

F4 RELAY

RV RELAY

LINE_L3

LINE_L5

ELECTRONIC CONTROL

J18

LINE_N2

BLACK

WHITE

POWER SUPPLY 230/208/115VAC

N E E R

/G W O

L L

BLACK

L U E

ORANGE

BLUE

BLACK

ORANGE

RED





WHITE

SSR

WHITE



BLUE



BLACK

WHITE

M R E

BROWN

MOTOR



CAP

- CAPACITOR

- COMPRESSOR

COMPR

- FAN MOTOR

MTR

- OVERLOAD PROTECTOR

OLP

- USER INTERFACE

- THERMAL FUSE

HLTF- HEATER LIMIT FUSE

L2 OR N

COMP

 



F22

EH1

EH2

LOW

MEDIUM

HIGH

ELECTRIC HEAT

REVERSING CYCLE

HTR

L E G E N D

SSR

(115 V)

NEUTRAL

(230/208 V)L2

OLP

FAN MTR

FAN

COM

CAP

OLP

- REVERSING VALVE

- THERMISTER

COMPRESSOR

HERM COM

CAP

- COMBINATION TERMINAL

- GROUNDED LEAD SYMBOL

- INSULATOR

- HEATER ELEMENT

HTR

PART NO. REV.

92170017

Kühl Gen2 Remote Control

Replacement Remote Control Configuration Instructions

For Use with Kühl (cool only models) and Kühl + (cool & heat models), N models only.

Contents:

•

Remote Control with Holder

•

(2) AAA-batteries

•

Instruction Sheet

ATTENTION! – If the Remote Control Does not Control the Unit, You May Need to Configure it. Follow the steps below to configure:

Please read instructions completely before attempting configuration of the Remote Control. Before performing the steps below, please test the remote control with your Air Conditioning unit as it may already configured for your unit model type.

Step 1. Point the Remote Control at the Air Conditioning Unit and press the Remote Control

POWER key once to illuminate the Air Conditioning Unit’s display.

Step 2. Once the display on the Air Conditioning Unit is illuminated, note the number shown in the

display. (See Figure 1)

Step 3. With the Remote Control display illuminated, press and hold the Remote Control

SCHEDULE and the FAN SPEED Keys simultaneously for approximately 6 seconds until

the Remote Control displays current configuration number message. (See Figure 2)

If the number displayed does not match what is shown on the Remote Control display, you will need to change the Remote Control’s setting to match that of the Air Conditioning Unit.

Air Conditioner Message Remote Control Message

Figure 1 Figure 2

Kühl Gen2 Remote Control

Step 4. Using the Remote Control  Increase or  Decrease Keys, match the configuration

number displayed on the Remote Control to the number shown on the Air Conditioning Unit display

(see examples below).

Air Conditioning Unit Display Remote Control Display

Step 5. To save setting in Remote Control, press and hold the Remote Control SCHEDULE and

FAN SPEED Key simultaneously for approximately 6 seconds until the displayed

configuration number on the Remote Control flashes.

The Remote Control is now configured to work with the air conditioner.

Kühl User Interface Service Kit

Replacement Instructions

For Use with Kühl (cool only models) and Kühl + (cool and heat models)

ATTENTION! - Please read these instructions completely before attempting replacement.

Always unplug the power supply from the power supply receptacle.

Contents:

• User Interface (UI)

• Ribbon Cable

• 2 – Mounting screws for UI

• Instruction Sheet

Step 1. Disconnect ribbon cable by pulling straight out

Step 2. Remove 2 –mounting screws securing UI and disconnect ribbon cable

Step 3. Remove UI and ribbon cable from handle assembly

Step 4. Install new UI using the 2-screws, route new ribbon cable and reattach ribbon cable to UI

and Main control board

Step 5. Verify control operation

Ribbon cable connection

Mounting screws

PARTS SECTION

Kühl & Kühl+ Standard Chassis Unit Exploded Diagram

PARTS SECTION

Kühl & Kühl+ Standard Chassis Unit Exploded Diagram

Kühl & Kühl+ Small-Chassis 2012 Parts List

Item

Part Number

Part Description

ES12N33-A

ES15N33-A

SS08N10-A

SS10N10-A

SS12N10-A

SS12N30-A

SS14N10-A

SS15N30-A

YS10N10-A

YS12N33-A

61717176

COMPRESSOR KIT 62200501

61764583

OVERLOAD

1 62050304 CONDENSOR COIL 1 1 61850343 CONDENSOR COIL 1 1

1 61850345 CONDENSOR COIL 1 1 1 1

1 61850344 CONDENSOR COIL 1 1 1

* 61818520 EXPANDED METAL GRILLE PAINTED SML 1 1 1 1 1 1 1 1 1 1

* 60169120 SCRIPT FRIEDRICH 2010 "FESTOON" 1 1 1 1 1 1 1 1 1 1

* 91002900 SPEEDNUT PUSH TYPE 3 3 3 3 3 3 3 3 3 3

2 61850126 EVAPORATOR COIL 1

2 61850129 EVAPORATOR COIL 1 1 1 1 1 1

2 61850128 EVAPORATOR COIL 1

2 61850127 EVAPORATOR COIL 1

2 61850131 EVAPORATOR COIL 1

* 61834800 STRAINER .312 COIL 1 1 1 1 1 1 1 1 2 3

3 61718107 COMPRESSOR KIT 62200118 1

3 61717127 COMPRESSOR KIT 62200109 1 1

3 61718104 COMPRESSOR KIT 62200420 1

3 61717126 COMPRESSOR KIT 62200115 1

3 61717116 COMPRESSOR KIT 62200103 1

3 61718114 COMPRESSOR KIT 62200419 1 1

* 3760500 CAPILLARY TUBE 1

* 3760520 CAPILLARY TUBE 1 1 1

* 3760513 CAPILLARY TUBE 1

* 3760511 CAPILLARY TUBE 1 1

* 3760451 CAPILLARY TUBE 1

* 3760547 CAPILLARY TUBE 1

* 3760543 CAPILLARY TUBE 1

* 3760555 CAPILLARY TUBE 1

* 3760479 CAPILLARY TUBE 1

4 25022022 REVERSING VALVE KIT + SOLENOID KIT 1 1

5 62601016 USER INTERFACE SERVICE KIT 1 1 1 1 1 1 1 1 1 1

6 62601013 ELECTRONIC CONTROL SERVICE KIT CL-EH 3SP GEN2 1 1

6 62601010 ELECTRONIC CONTROL SERVICE KIT COOL 4SP GEN2 1 1 1 1 1 1

6 62601012 ELECTRONIC CONTROL SERVICE KIT HP-EH 3SP GEN2 1

6 62601014 ELECTRONIC CONTROL SERVICE KIT HP 3SP GEN2 1

7 61080522 CAPACITOR 1 1

7 61080529 CAPACITOR 1

7 61080533 CAPACITOR 1

7 61080559 CAPACITOR 1

7 61080582 CAPACITOR 1 1

7 61080566 CAPACITOR 1

7 61080532 CAPACITOR 1 1

* 61820700 CAPACITOR STRAP 2.0 DIAMETER 1 1 1 1 1 1 1 1 1

* 61820702 CAPACITOR STRAP 2.5 DIAMETER 1

61820401 CAPACITOR MOUNTING BRACKET 1 1 1 1 1 1 1 1 1 1

8 25063505 COIL SOLENOID 115VAC 1

8 25063605 COIL SOLENOID 208/230VAC 1

9 61764585 OVERLOAD 1 1

9 61764586 OVERLOAD 1 1

9 61764589 OVERLOAD 1

9 61764594 OVERLOAD 1 1

9 61764601 OVERLOAD 1

9 61764606 OVERLOAD 1

10 61878610 HEATER 3.3 KW @ 230V 1 1 1

11 61871496 FAN MOTOR 1 1 1 1 1

11 61871497 FAN MOTOR 1 1 1 1 1

12 60500390 SUPPLY CORD 15A 125V 1 1 1 1 1

12 60500394 SUPPLY CORD 13A 250V 1 1

12 60500398 SUPPLY CORD 20A 250V 1 1 1

13 60179904 CONDENSATE DRAIN VALVE 1 1 1 1

14 60610603 BLOWER WHEEL 1 1 1 1 1

14 60610604 BLOWER WHEEL 1 1 1 1 1

15 61814905 SCROLL SML 1 1 1 1 1 1 1 1 1 1

16 60542003 FAN BLADE 1 1 1 1 1 1 1 1 1 1

Item

Part Number

Part Description

ES12N33-A

ES15N33-A

SS08N10-A

SS10N10-A

SS12N10-A

SS12N30-A

SS14N10-A

SS15N30-A

YS10N10-A

YS12N33-A

62050304

CONDENSOR COIL

61850343

CONDENSOR COIL

111

61850345

CONDENSOR COIL

111

61850344

CONDENSOR COIL

111

61818520

EXPANDED METAL GRILLE PAINTED SML

111111111

60169120

SCRIPT FRIEDRICH 2010 "FESTOON"

111111111

91002900

SPEEDNUT PUSH TYPE

33333333332

61850126

EVAPORATOR COIL

61850129

EVAPORATOR COIL

11111

61850128

EVAPORATOR COIL

1261850127

EVAPORATOR COIL

61850131

EVAPORATOR COIL

61834800

STRAINER .312 COIL

11111111233

61718107

COMPRESSOR KIT 62200118

1361717176

COMPRESSOR KIT 62200501

61717127

COMPRESSOR KIT 62200109

113

61718104

COMPRESSOR KIT 62200420

1361717126

COMPRESSOR KIT 62200115

61717116

COMPRESSOR KIT 62200103

1361718114

COMPRESSOR KIT 62200419

11*

3760500

CAPILLARY TUBE

3760520

CAPILLARY TUBE

111*3760513

CAPILLARY TUBE

3760511

CAPILLARY TUBE

11*

3760451

CAPILLARY TUBE

3760547

CAPILLARY TUBE

3760543

CAPILLARY TUBE

1*3760555

CAPILLARY TUBE

1*3760479

CAPILLARY TUBE

25022022

REVERSING VALVE KIT + SOLENOID KIT

115

62601016

USER INTERFACE SERVICE KIT

11111111116

62601013

ELECTRONIC CONTROL SERVICE KIT CL-EH 3SP GEN2

62601010

ELECTRONIC CONTROL SERVICE KIT COOL 4SP GEN2

1111116

62601012

ELECTRONIC CONTROL SERVICE KIT HP-EH 3SP GEN2

62601014

ELECTRONIC CONTROL SERVICE KIT HP 3SP GEN2

61080522

CAPACITOR11761080529

CAPACITOR

61080533

CAPACITOR

61080559

CAPACITOR

1761080582

CAPACITOR11

61080566

CAPACITOR

1761080532

CAPACITOR11

61820700

CAPACITOR STRAP 2.0 DIAMETER

111111111*61820702

CAPACITOR STRAP 2.5 DIAMETER

61820401

CAPACITOR MOUNTING BRACKET

111111111

25063505

COIL SOLENOID 115VAC

1825063605

COIL SOLENOID 208/230VAC

61764583

OVERLOAD

61764585

OVERLOAD11961764586

OVERLOAD11

61764589

OVERLOAD

61764594

OVERLOAD11

61764601

OVERLOAD

61764606

OVERLOAD

61878610

HEATER 3.3 KW @ 230V

1111161871496

FAN MOTOR

11111

61871497

FAN MOTOR

11111

60500390

SUPPLY CORD 15A 125V

111111260500394

SUPPLY CORD 13A 250V

60500398

SUPPLY CORD 20A 250V

1111360179904

CONDENSATE DRAIN VALVE

111

60610603

BLOWER WHEEL

11111

60610604

BLOWER WHEEL

111111561814905

SCROLL SML

111111111

60542003

FAN BLADE1111111111

Kühl & Kühl+ Small-Chassis 2012 Parts List

Item

Part Number

Part Description

ES12N33-A

ES15N33-A

SS08N10-A

SS10N10-A

SS12N10-A

SS12N30-A

SS14N10-A

SS15N30-A

YS10N10-A

YS12N33-A

17 61803601 SHROUD, SML 1 1 1 1 1 1 1 1 1 1

18 61802500 MOUNT, FAN MOTOR 1 1 1 1 1 1 1 1 1 1

19 61907312 INNERWALL ASY SML 1 1 1 1 1 1 1 1 1 1

20 61821500 ASSY DOOR/SLIDE S/M/L 1 1 1 1 1 1 1 1 1 1

* 61814805 CONNECTOR FRESH AIR S/M 1 1 1 1 1 1 1 1 1 1

21 61817100 DECK SML/MED 1 1 1 1 1 1 1 1 1 1

* 61817000 INSUL L/S PANEL SML 1 1 1 1 1 1 1 1 1 1

22 61820200 AIRFOIL SM/MED/SH 1 1 1 1 1 1 1 1 1 1

23 61816701 INSUL TOP COVER S/M 1 1 1 1 1 1 1 1 1 1

24 61906700 COVER TOP S/M 1 1 1 1 1 1 1 1 1 1

25 61817300 BLOWER FR SML 1 1 1 1 1 1 1 1 1 1

26 61816900 INSUL INNERWALL SML 1 1 1 1 1 1 1 1 1 1

27 61807255 PANEL CONTROL SML 1 1 1 1 1 1 1 1 1 1

28 61802810 ASSY PARTITION SML 1 1 1 1 1 1 1 1 1 1

29 61803457 BASEPAN 1

29 61803459 BASEPAN 1 1 1

29 61803461 BASEPAN 1 1 1

29 61803462 BASEPAN 1 1 1

30 61803800 DRAINPAN SML/MED 1 1 1 1 1 1 1 1 1 1

31 62400127 AIR FILTER ASSEMBLY SML 1 1 1 1 1 1 1 1 1 1

32 62400134 TOOL MANIFOLD 1 1 1 1 1 1 1 1 1 1

* 60301802 CLIP MANIFOLD TOOL 1 1 1 1 1 1 1 1 1 1

33 62400124 ASSY UI HOLDER MOUNT SML/MED 1 1 1 1 1 1 1 1 1 1

34 61802600 BRACE SHROUD, S/M 2 2 2 2 2 2 2 2 2 2

35 91400402 COMPRESSOR STUD 3 3 3 3 3 3 3 3 3 3

35 61715800 COUNTER WEIGHT 3 2 3 3 2 3 5 2 3

36 61028900 COMPRESSOR GROMMET 3 3 3

36 61028901 COMPRESSOR GROMMET 3 3 3 3 3 3

36 61028903 COMPRESSOR GROMMET 3

37 61937200 PANEL L/S SML 1 1 1 1 1 1 1 1 1 1

38 61816800 INSUL L/S AIR DECK S/M 1 1 1 1 1 1 1 1 1 1

39 62400425 DECORATIVE FRONT SERVICE KIT SML 1 1 1 1 1 1 1 1 1 1

40 61819816 ANGLE WNGBRD SIDE PAINTED SML 2 2 2 2 2 2

41 61109514 BRKT SUPPORT ASSY PAINTED 2 2 2 2 2 2

42 61819715 ANGLE WINGBOARD TOP PAINTED SML/MED 1 1 1 1 1 1

43 60610305 WINDOW SEAL GASKET 1 1 1 1 1 1 1 1 1 1

44 61717302 CHASSIS GASKET SEAL 1 1 1 1 1 1 1 1 1 1

45 61808414 SILL PLATE PAINTED SML/MED 1 1 1 1 1 1 1 1 1 1

46 61825720 SHELL OUTER SML REPLMT 2010 1 1 1 1 1 1 1 1 1 1

47 60294416 WINGBOARD SML 2010 1 1 1 1 1 1

48 62601015 REMOTE CONTROL SERVICE KIT 1 1 1 1 1 1 1 1 1 1

* 61824405 CHECK VALVE 1 1

* 61883102 48 PAD ISOLATION 3X6 1

* 61818900 HEATER MOUNT BRACKET 1 1 1

* 61812900 SHIELD BOTTOM S/M 3R 1 1

* 61812901 SHIELD BOTTOM S/M 4R 1

* 61821800 SHEILD HEAT SMALL 1 1 1

* 61715800 COUNTER WEIGHT 1 1 1

* 60846016 ASSY PLSTC BAG W/WIK 1 1 1 1 1 1

* 60846017 ASSY PLSTC BAG W/O WIK 1 1 1 1

* 60073300 GASKET URETHANE FOAM 1 1 1 1 1 1

* 61819601 SHELL GUIDE S/M/L 2 2 2 2 2 2 2 2 2 2

* 61826400 CHASSIS RETAINER WIRE 1 1 1 1 1 1 1 1 1 1

* 62601019 THERMISTOR SENSOR KIT 1 1 1 1 1 1 1 1 1 1

Kühl & Kühl+ Medium-Chassis 2012 Parts List

61850227

CONDENSOR COIL

61718111

COMPRESSOR KIT 62200311

61817505

SCROLL MED

1111111

Item Part Number Part Description EM18N34-A EM24N34-A SM15N10-A SM18N30-A SM21N30-A SM24N30-A YM18N34-A

1 61850140 CONDENSOR COIL 1 1

1 61850244 CONDENSOR COIL 1 1 1

1 61850141 CONDENSOR COIL 1

* 61818521 EXPANDED METAL GRILLE PAINTED MED 1 1 1 1 1 1 1

* 60169120 SCRIPT FRIEDRICH 2010 "FESTOON" 1 1 1 1 1 1 1

* 91002900 SPEEDNUT PUSH TYPE 3 3 3 3 3 3 3

2 61850108 EVAPORATOR COIL 1

2 62050030 EVAPORATOR COIL 1

2 62050034 EVAPORATOR COIL 1 1

2 61850130 EVAPORATOR COIL 1 1

2 62050040 EVAPORATOR COIL 1

* 61834800 STRAINER .312 COIL 1 1 1 1 1 1 1

* 61834801 STRAINER .375 COIL 1

3 61717131 COMPRESSOR KIT 62200108 1 1

3 61717118 COMPRESSOR KIT 62200105 1

3 61717119 COMPRESSOR KIT 62200106 1

3 61718105 COMPRESSOR KIT 62200121 1

* 3760500 CAPILLARY TUBE 3 1

* 3760520 CAPILLARY TUBE 1

* 3760513 CAPILLARY TUBE 2

* 3760545 CAPILLARY TUBE 3 3

* 3760451 CAPILLARY TUBE 2

4 25022032 REVERSING VALVE KIT + SOLENOID KIT 1

5 62601016 USER INTERFACE SERVICE KIT 1 1 1 1 1 1 1

6 62601013 ELECTRONIC CONTROL SERVICE KIT CL-EH 3SP GEN2 1 1

6 62601010 ELECTRONIC CONTROL SERVICE KIT COOL 4SP GEN2 1 1 1 1

6 62601012 ELECTRONIC CONTROL SERVICE KIT HP-EH 3SP GEN2 1

7 61080529 CAPACITOR 1

7 61080557 CAPACITOR 1 1

7 61080588 CAPACITOR 1

7 61080591 CAPACITOR 1 1

7 61080592 CAPACITOR 1

* 61820700 CAPACITOR STRAP 2.0 DIAMETER 1 1 1

* 61820702 CAPACITOR STRAP 2.5 DIAMETER 1 1 1 1

61820401 CAPACITOR MOUNTING BRACKET 1 1 1 1 1 1 1

8 25063605 COIL SOLENOID 208/230VAC 1

9 61764583 OVERLOAD 1

9 61764570 OVERLOAD 1 1

10 61878611 HEATER 4.0 KW @ 230V 1 1 1

11 61871495 FAN MOTOR 1 1 1 1 1 1

11 61871498 FAN MOTOR 1

12 60500390 SUPPLY CORD 15A 125V 1

12 60500394 SUPPLY CORD 13A 250V 1 1

12 60500398 SUPPLY CORD 20A 250V 1

12 60500399 SUPPLY CORD 30A 250V 1 1 1

13 60179904 CONDENSATE DRAIN VALVE 1 1 1

14 60610616 BLOWER WHEEL 1 1 1

14 60610617 BLOWER WHEEL 1 1

14 60610618 BLOWER WHEEL 1 1

16 60542004 FAN BLADE 1 1 1 1 1 1 1

Item

Part Number

Part Description

EM18N34-A

EM24N34-A

SM15N10-A

SM18N30-A

SM21N30-A

SM24N30-A

YM18N34-A

61850227

CONDENSOR COIL

61850140

CONDENSOR COIL

61850244

CONDENSOR COIL

111

61850141

CONDENSOR COIL

61818521

EXPANDED METAL GRILLE PAINTED MED

1111111

60169120

SCRIPT FRIEDRICH 2010 "FESTOON"

1111111

91002900

SPEEDNUT PUSH TYPE

3333333

61850108

EVAPORATOR COIL

62050030

EVAPORATOR COIL

62050034

EVAPORATOR COIL

61850130

EVAPORATOR COIL

62050040

EVAPORATOR COIL

61834800

STRAINER .312 COIL

1111111

61834801

STRAINER .375 COIL

61718111

COMPRESSOR KIT 62200311

61717131

COMPRESSOR KIT 62200108

61717118

COMPRESSOR KIT 62200105

61717119

COMPRESSOR KIT 62200106

61718105

COMPRESSOR KIT 62200121

3760500

CAPILLARY TUBE

3760520

CAPILLARY TUBE

3760513

CAPILLARY TUBE

3760545

CAPILLARY TUBE

3760451

CAPILLARY TUBE

25022032

REVERSING VALVE KIT + SOLENOID KIT

62601016

USER INTERFACE SERVICE KIT

1111111

62601013

ELECTRONIC CONTROL SERVICE KIT CL-EH 3SP GEN2

62601010

ELECTRONIC CONTROL SERVICE KIT COOL 4SP GEN2

111

62601012

ELECTRONIC CONTROL SERVICE KIT HP-EH 3SP GEN2

61080529

CAPACITOR

61080557

CAPACITOR

61080588

CAPACITOR

61080591

CAPACITOR

61080592

CAPACITOR

61820700

CAPACITOR STRAP 2.0 DIAMETER

111

61820702

CAPACITOR STRAP 2.5 DIAMETER

111

61820401

CAPACITOR MOUNTING BRACKET

1111111

25063605

COIL SOLENOID 208/230VAC

61764583

OVERLOAD

61764570

OVERLOAD11

61878611

HEATER 4.0 KW @ 230V

111

61871495

FAN MOTOR

11111

61871498

FAN MOTOR

60500390

SUPPLY CORD 15A 125V

60500394

SUPPLY CORD 13A 250V

60500398

SUPPLY CORD 20A 250V

60500399

SUPPLY CORD 30A 250V

111

60179904

CONDENSATE DRAIN VALVE

111

60610616

BLOWER WHEEL

111

60610617

BLOWER WHEEL

60610618

BLOWER WHEEL

61817505

SCROLL MED

1111111

60542004

FAN BLADE111111

62400124

ASSY UI HOLDER MOUNT SML/MED

1111111

Kühl & Kühl+ Medium-Chassis 2012 Parts List

Item Part Number Part Description EM18N34-A EM24N34-A SM15N10-A SM18N30-A SM21N30-A SM24N30-A YM18N34-A

17 61804901 SHROUD, MED 1 1 1 1 1 1 1

18 61804100 MOUNT, FAN MOTOR 1 1 1 1 1 1 1

19 61907212 INNERWALL ASY MED 1 1 1 1 1 1 1

20 61821500 ASSY DOOR/SLIDE S/M/L 1 1 1 1 1 1 1

* 61814805 CONNECTOR FRESH AIR S/M 1 1 1 1 1 1 1

21 61817100 DECK SML/MED 1 1 1 1 1 1 1

* 61817001 INSUL L/S PANEL MED 1 1 1 1 1 1 1

22 61820200 AIRFOIL SM/MED/SH 1 1 1 1 1 1 1

23 61816701 INSUL TOP COVER S/M 1 1 1 1 1 1 1

24 61906700 COVER TOP S/M 1 1 1 1 1 1 1

25 61817400 BLOWER FR MED 1 1 1 1 1 1 1

26 61816901 INSUL INNERWALL MED 1 1 1 1 1 1 1

27 61807256 PANEL CONTROL MED 1 1 1 1 1 1 1

28 61804310 ASSY PARTITION MED 1 1 1 1 1 1 1

29 61803461 BASEPAN 1 1 1 1

29 61803462 BASEPAN 1 1 1

30 61803800 DRAINPAN SML/MED 1 1 1 1 1 1 1

31 62400210 AIR FILTER ASSEMBLY MED 1 1 1 1 1 1 1

32 62400134 TOOL MANIFOLD 1 1 1 1 1 1 1

* 60301802 CLIP MANIFOLD TOOL 1 1 1 1 1 1 1

34 61802600 BRACE SHROUD, S/M 2 2 2 2 2 2 2

35 91400402 COMPRESSOR STUD 3 3 3 3 3 3 3

35 61715800 COUNTER WEIGHT 2 2 3 2 2 2 2

36 61028900 COMPRESSOR GROMMET 3 3 3

36 61028901 COMPRESSOR GROMMET 3 3 3 3

37 61937100 PANEL L/S MED 1 1 1 1 1 1 1

38 61816800 INSUL L/S AIR DECK S/M 1 1 1 1 1 1 1

39 62400426 DECORATIVE FRONT SERVICE KIT MED 1 1 1 1 1 1 1

40 61819817 ANGLE WNGBRD SIDE PAINTED MED 2 2 2 2

41 61109514 BRKT SUPPORT ASSY PAINTED 2 2 2 2

42 61819715 ANGLE WINGBOARD TOP PAINTED SML/MED 1 1 1 1

43 60610305 WINDOW SEAL GASKET 1 1 1 1 1 1 1

44 61717302 CHASSIS GASKET SEAL 1 1 1 1 1 1 1

45 61808414 SILL PLATE PAINTED SML/MED 1 1 1 1 1 1 1

46 61825721 SHELL OUTER MED REPLMT 2010 1 1 1 1 1 1 1

47 60294421 WINGBOARD MED 2010 1 1 1 1

48 62601015 REMOTE CONTROL SERVICE KIT 1 1 1 1 1 1 1

* 61824405 CHECK VALVE 1

* 61883102 48 PAD ISOLATION 3X6 1

* 61818900 HEATER MOUNT BRACKET 1 1 1

* 61812900 SHIELD BOTTOM S/M 3R 1 1

* 61812901 SHIELD BOTTOM S/M 4R 1

* 61821801 SHIELD HEAT MED 1 1 1

* 61715800 COUNTER WEIGHT 1 1 1

* 60846016 ASSY PLSTC BAG W/WIK 1 1 1 1

* 60846017 ASSY PLSTC BAG W/O WIK 1 1 1

* 60073300 GASKET URETHANE FOAM 1 1 1 1

* 61819601 SHELL GUIDE S/M/L 2 2 2 2 2 2 2

* 61826400 CHASSIS RETAINER WIRE 1 1 1 1 1 1 1

* 62601019 THERMISTOR SENSOR KIT 1 1 1 1 1 1 1

Kühl & Kühl+ Large-Chassis 2012 Parts List

61717131

COMPRESSOR KIT 62200108

111

Item Part Number Part Description EL25N35-A EL36N35-A SL22N30-A SL25N30-A SL28N30-A SL36N30-A YL24N35-A

1 61850238 CONDENSOR COIL 1

1 62050222 CONDENSOR COIL 1 1 1 1 1

1 61850246 CONDENSOR COIL 1

* 61818522 EXPANDED METAL GRILLE PAINTED LRG 1 1 1 1 1 1 1

* 60169120 SCRIPT FRIEDRICH 2010 "FESTOON" 1 1 1 1 1 1 1

* 91002900 SPEEDNUT PUSH TYPE 3 3 3 3 3 3 3

2 61896305 EVAPORATOR COIL 1 1

2 62050004 EVAPORATOR COIL 1 1 1 1

2 62050041 EVAPORATOR COIL 1

* 61834801 STRAINER .375 COIL 1 1 1 1 1 1 3

3 61717134 COMPRESSOR KIT 62200205 1 1

3 61718113 COMPRESSOR KIT 62200207 1

3 61717130 COMPRESSOR KIT 62200200 1

* 1390000 CAPILLARY TUBE 1

* 3760482 CAPILLARY TUBE 1

* 3760473 CAPILLARY TUBE 2 2 2

* 3760512 CAPILLARY TUBE 2 2

* 3760518 CAPILLARY TUBE 2

4 25022032 REVERSING VALVE KIT + SOLENOID KIT 1

5 62601016 USER INTERFACE SERVICE KIT 1 1 1 1 1 1 1

6 62601013 ELECTRONIC CONTROL SERVICE KIT CL-EH 3SP GEN2 1 1

6 62601011 ELECTRONIC CONTROL SERVICE KIT COOL 3SP GEN2 1 1 1 1

6 62601012 ELECTRONIC CONTROL SERVICE KIT HP-EH 3SP GEN2 1

7 61080589 CAPACITOR 1 1

7 61080588 CAPACITOR 1

7 61080520 CAPACITOR 1 1

7 61080514 CAPACITOR 1 1

* 61820700 CAPACITOR STRAP 2.0 DIAMETER 1 1

* 61820702 CAPACITOR STRAP 2.5 DIAMETER 1 1 1 1 1

61820401 CAPACITOR MOUNTING BRACKET 1 1 1 1 1 1 1

8 25063605 COIL SOLENOID 208/230VAC 1

10 61878612 HEATER 5.2 KW @ 230V 1 1 1

11 61871466 FAN MOTOR 1 1

11 61871467 FAN MOTOR 1 1 1 1 1

12 60500394 SUPPLY CORD 13A 250V 1

12 60500398 SUPPLY CORD 20A 250V 1 1

12 60500399 SUPPLY CORD 30A 250V 1 1 1 1

13 60179904 CONDENSATE DRAIN VALVE 1 1 1

14 60610617 BLOWER WHEEL 1

14 60610619 BLOWER WHEEL 1 1 1

14 60610620 BLOWER WHEEL 1 1 1

14 60610620 BLOWER WHEEL 1

15 61818100 SCROLL LRG 1 1 1 1 1 1 1

16 60542007 FAN BLADE 1 1 1 1 1 1 1

17 61807702 SHROUD, LRG 1 1 1 1 1 1 1

18 61806700 MOUNT, FAN MOTOR 1 1 1 1 1 1 1

19 61907111 INNERWALL ASY LRG 1 1 1 1 1 1 1

20 61821500 ASSY DOOR/SLIDE S/M/L 1 1 1 1 1 1 1

* 61814806 CONNECTOR FRESH AIR LRG 1 1 1 1 1 1 1

Kühl & Kühl+ Large-Chassis 2012 Parts List

Item

Part Number

Part Description

EL25N35-A

EL36N35-A

SL22N30-A

SL25N30-A

SL28N30-A

SL36N30-A

YL24N35-A

61850238

CONDENSOR COIL

62050222

CONDENSOR COIL

11111

61850246

CONDENSOR COIL

61818522

EXPANDED METAL GRILLE PAINTED LRG

1111111

60169120

SCRIPT FRIEDRICH 2010 "FESTOON"

1111111

91002900

SPEEDNUT PUSH TYPE

3333333

61896305

EVAPORATOR COIL

62050004

EVAPORATOR COIL

111

62050041

EVAPORATOR COIL

61834801

STRAINER .375 COIL

1111113

61717134

COMPRESSOR KIT 62200205

61717131

COMPRESSOR KIT 62200108

111

61718113

COMPRESSOR KIT 62200207

61717130

COMPRESSOR KIT 62200200

1390000

CAPILLARY TUBE

3760482

CAPILLARY TUBE

3760473

CAPILLARY TUBE

222

3760512

CAPILLARY TUBE

3760518

CAPILLARY TUBE

25022032

REVERSING VALVE KIT + SOLENOID KIT

62601016

USER INTERFACE SERVICE KIT

1111111

62601013

ELECTRONIC CONTROL SERVICE KIT CL-EH 3SP GEN2

62601011

ELECTRONIC CONTROL SERVICE KIT COOL 3SP GEN2

111

62601012

ELECTRONIC CONTROL SERVICE KIT HP-EH 3SP GEN2

61080589

CAPACITOR

61080588

CAPACITOR

61080520

CAPACITOR

61080514

CAPACITOR

61820700

CAPACITOR STRAP 2.0 DIAMETER

61820702

CAPACITOR STRAP 2.5 DIAMETER

11111

61820401

CAPACITOR MOUNTING BRACKET

1111111

25063605

COIL SOLENOID 208/230VAC

61878612

HEATER 5.2 KW @ 230V

111

61871466

FAN MOTOR

61871467

FAN MOTOR

11111

60500394

SUPPLY CORD 13A 250V

60500398

SUPPLY CORD 20A 250V

60500399

SUPPLY CORD 30A 250V

111

60179904

CONDENSATE DRAIN VALVE

111

60610617

BLOWER WHEEL

60610619

BLOWER WHEEL

111

60610620

BLOWER WHEEL

111

60610620

BLOWER WHEEL

61818100

SCROLL LRG

1111111

60542007

FAN BLADE

1111111

61807702

SHROUD, LRG

1111111

61806700

MOUNT, FAN MOTOR

1111111

61907111

INNERWALL ASY LRG

1111111

61821500

ASSY DOOR/SLIDE S/M/L

1111111

61814806

CONNECTOR FRESH AIR LRG

1111111

62400134

TOOL MANIFOLD

1111111

Item Part Number Part Description EL25N35-A EL36N35-A SL22N30-A SL25N30-A SL28N30-A SL36N30-A YL24N35-A

21 61818000 DECK LRG 1 1 1 1 1 1 1

* 61817600 INSUL L/S PANEL LRG 1 1 1 1 1 1 1

22 61820201 AIRFOIL LRG 1 1 1 1 1 1 1

23 61818201 INSUL, TOP COVER LRG 1 1 1 1 1 1 1

24 61906600 COVER TOP LRG 1 1 1 1 1 1 1

25 61817800 BLOWER FRONT LRG 1 1 1 1 1 1

26 61816902 INSUL INNERWALL LRG 1 1 1 1 1 1 1

27 61807257 PANEL CONTROL LRG 1 1 1 1 1 1 1

28 61807010 ASSY PARTITION LRG 1 1 1 1 1 1 1

29 61809515 BASEPAN 1

29 61809516 BASEPAN 1

29 61809517 BASEPAN 1 1 1

29 61809518 BASEPAN 1 1

30 61807400 DRAINPAN LRG 1 1 1 1 1 1 1

31 62400321 AIR FILTER ASSEMBLY LRG 1 1 1 1 1 1 1

* 60301802 CLIP MANIFOLD TOOL 1 1 1 1 1 1 1

33 62400318 ASSY UI HOLDERMOUNT LRG 1 1 1 1 1 1 1

34 61810000 BRACE SHROUD, LARGE 2 2 2 2 2 2 2

35 91400402 COMPRESSOR STUD 3 3 3 3 3 3 3

35 61715800 COUNTER WEIGHT 2 2 2 2 2

36 1150934 COMPRESSOR GROMMET 3 3 3 3 3 3

36 61028902 COMPRESSOR GROMMET 3

37 61937000 PANEL L/S LRG 1 1 1 1

37 61937002 PANEL L/S LRG PTCR 1 1 1

38 61818300 INSUL L/S AIR DECK LRG 1 1 1 1 1 1 1

39 62400427 DECORATIVE FRONT SERVICE KIT LRG 1 1 1 1 1 1 1

40 61819818 ANGLE WNGBRD SIDE PAINTED LRG 2 2 2 2

42 61819710 ASSY ANGLE WINGBOARD TOP LRG 1 1 1 1

43 60610305 WINDOW SEAL GASKET 1 1 1 1 1 1 1

44 61717302 CHASSIS GASKET SEAL 1 1 1 1 1 1 1

45 61808415 SILL PLATE PAINTED LRG 1 1 1 1 1 1 1

46 61825730 SHELL OUTER LRG REPLMT 2010 1 1 1 1 1 1 1

47 60294426 WINGBOARD LRG 2010 1 1 1 1

48 62601015 REMOTE CONTROL SERVICE KIT 1 1 1 1 1 1 1

* 61108801 SOLID STATE RELAY 1 1 1 1 1 1 1

* 61768203 BOX EXTERNAL RELAY 1 1

* 61883803 PTCR RESISTOR HARD START 1 1

* 61883804 PTCR MNTG CLIP PTCAUX36-520H RND 1 1

* 61824405 CHECK VALVE 1

* 61883102 48 PAD ISOLATION 3X6 1

* 61883101 48 PAD ISOLATION 2X4 1 1

* 61818900 HEATER MOUNT BRACKET 1 1 1

* 61813501 SHIELD BOTTOM LRG 4R 1 1 1

* 61821900 SHIELD HEAT LRG 1 1 1

* 60846016 ASSY PLSTC BAG W/WIK 1 1 1 1

* 60846017 ASSY PLSTC BAG W/O WIK 1 1 1

* 60073300 GASKET URETHANE FOAM 1 1 1 1

* 61819601 SHELL GUIDE S/M/L 4 4 4 4 4 4 4

* 61826400 CHASSIS RETAINER WIRE 1 1 1 1 1 1 1

* 62601019 THERMISTOR SENSOR KIT 1 1 1 1 1 1 1

Addendum 1

Schedule Table with Energy Saving Values

Period Sun Mon Tues Wed Thur Fri Sat

Start Time 600 Start Time 600 Start Time 600 Start Time 600 Start Time 600 Start Time 600 Start Time 600 System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto

Fan Speed Low Fan Speed Low Fan Speed Low Fan Speed Low Fan Speed Low Fan Speed Low Fan Speed Low Set Point Cool 78 Set Point Cool 78 Set Point Cool 78 Set Point Cool 78 Set Point Cool 78 Set Point Cool 78 Set Point Cool 78 Set Point Heat 70 Set Point Heat 70 Set Point Heat 70 Set Point Heat 70 Set Point Heat 70 Set Point Heat 70 Set Point Heat 70

Start Time 800 Start Time 800 Start Time 800 Start Time 800 Start Time 800 Start Time 800 Start Time 800 System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto

Fan Speed Low Fan Speed Low Fan Speed Low Fan Speed Low Fan Speed Low Fan Speed Low Fan Speed Low Set Point Cool 85 Set Point Cool 85 Set Point Cool 85 Set Point Cool 85 Set Point Cool 85 Set Point Cool 85 Set Point Cool 85 Set Point Heat 62 Set Point Heat 62 Set Point Heat 62 Set Point Heat 62 Set Point Heat 62 Set Point Heat 62 Set Point Heat 62

Start Time 1800 Start Time 1800 Start Time 1800 Start Time 1800 Start Time 1800 Start Time 1800 Start Time 1800 System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto

Start Time 2200 Start Time 2200 Start Time 2200 Start Time 2200 Start Time 2200 Start Time 2200 Start Time 2200 System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto

Fan Speed Low Fan Speed Low Fan Speed Low Fan Speed Low Fan Speed Low Fan Speed Low Fan Speed Low Set Point Cool 82 Set Point Cool 82 Set Point Cool 82 Set Point Cool 82 Set Point Cool 82 Set Point Cool 82 Set Point Cool 82 Set Point Heat 62 Set Point Heat 62 Set Point Heat 62 Set Point Heat 62 Set Point Heat 62 Set Point Heat 62 Set Point Heat 62

Pre Programmed Commercial Schedule Option 2

Period Sun Mon Tues Wed Thur Fri Sat

Start Time 700 Start Time 700 Start Time 700 Start Time 700 Start Time 700 Start Time 700 Start Time 700 System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto

Fan Speed Med Fan Speed Med Fan Speed Med Fan Speed Med Fan Speed Med Fan Speed Med Fan Speed Med Set Point Cool 84 Set Point Cool 75 Set Point Cool 75 Set Point Cool 75 Set Point Cool 75 Set Point Cool 75 Set Point Cool 84 Set Point Heat 62 Set Point Heat 70 Set Point Heat 70 Set Point Heat 70 Set Point Heat 70 Set Point Heat 70 Set Point Heat 62 Start Time 1800 Start Time 1800 Start Time 1800 Start Time 1800 Start Time 1800 Start Time 1800 Start Time 1800 System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool System Mode Cool Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto Fan Mode Auto

Fan Speed Med Fan Speed Med Fan Speed Med Fan Speed Med Fan Speed Med Fan Speed Med Fan Speed Med Set Point Cool 84 Set Point Cool 84 Set Point Cool 84 Set Point Cool 84 Set Point Cool 84 Set Point Cool 84 Set Point Cool 84 Set Point Heat 62 Set Point Heat 62 Set Point Heat 62 Set Point Heat 62 Set Point Heat 62 Set Point Heat 62 Set Point Heat 62

Pre Programmed Residential Schedule Option 1

Friedrich Air Conditioning Company

10001 Reunion Place, Suite 500

San Antonio, TX 78216

800.541.6645

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, fuses, batteries and the front grille removal tool.

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 (the Friedrich address is at the top of this warranty) or email tac@friedrich.com.

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.

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.

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.

3. Providing a replacement unit of equal value

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.

(9-12)

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. This information is used to identify product failure trends, initiate corrective action, and improve product quality, thereby further reducing warranty expenses while increasing customer satisfaction levels.

FRIEDRICH AUTHORIZED PARTS DEPOTS

AAA Refrigeration Service

1322 24th Street, Suite B Kenner, Louisiana 70062 504-464-7444 877-813-7444

Alamo Service Company

1450 North Flores Street

San Antonio, Texas 78212 210-227-2450

800-328-2450

A/C Warehouse

670 Avahl Street Honolulu, Hi 96813

808-545-3084

TECHNICAL SUPPORT

CONTACT INFORMATION

The Gabbert Company

6868 Ardmore Houston, Texas 77054 713-747-4110

800-458-4110

Johnstone Supply of Woodside

27-01 Brooklyn Queens Expway Woodside, New York 11377 718-545-5464

800-431-1143

International Parts Depot

Traco Corp. 380 Paterson Road

Carlstadt, NJ 07072 201-939-1600

Reeve Air Conditioning, Inc.

2501 South Park Road

Hallandale, Florida 33009 954-962-0252 800-962-3383

Valley of the Sun

4710 W. Dewey Drive Las Vegas, NV 89118 702-547-4900 866-259-8500

FRIEDRICH AIR CONDITIONING CO.

10001 Reunion Place, Ste. 500, San Antonio, TX 78216 (210) 546-0500 877-599-5665 x 261 FAX (210) 546-0631 Email: tac@friedrich.com www.friedrich.com

Printed in the U.S.A.

Kuhl-Serv/PartsMan (9-12)

FRIEDRICH AIR CONDITIONING CO.

10001 Reunion Place, Ste 500, San Antonio, TX 78216 P 210-546-0500 l F 210-546-0731 www.friedrich.com

Printed in the U.S.A.

Kuhl-Serv/PartsMan (9-12)

Friedrich YM18N34, SS12N10, SS12N30, SL36N30, EL36N35 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual