Friedrich SS10N10* User Manual

Service ManualStandard Chassis ModelsRoom Air Conditioners115 -Vo lt: 208-230-Volt: Cool OnlySS08M10, SS10M10, SS12M10, SS14M10SS12M30, SS15M30, SM18M

9LISTEDELECTRICAL DATAELECTRIC SHOCK HAZARD WARNINGTurn off electric power before service or installation.All electrical connections and wiring

1010If 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 circu

11Kuhl Control OptionsKühl Control OptionsThe Kühl gives you a variety of options for control, programming, and scheduling including wireless capabil

12Control Panel and Display Identication2 DIGIT DISPLAYShows Setting for:- Set Point (Temperature)- Room Temperature - Clock (AM/PM)ON / OFFTurns uni

13When in the SYSTEM COOL or HEAT or FAN ONLY mode, youcan also select FAN MODE, FAN SPEED, TIMER SCHEDULE, and . The SYSTEM

14SET POINTFAUTO FANSET POINTFAUTO FANUP and DOWN - arrows - Pressing either or button changes the system's set point (desired room temp

15the or buttons to change the setting.DIM FunctionThere are three separate display brightness levels, AUTO, 20% and full (100%). To ch

16NOTE: The schedule options 1 and 2 have factory pre-programmed settings which can only be changed by using the WiFi FriedrichLink™ adaptor

17SET POINTFAUTO FANTimer Start TimeThe display shows a normal system. Press and hold the HOUR button (Figure 4) for 3 seconds. Note: The Timer start-

1816Turning the TIMER ON once the time and day, the start and top times have been set:Press the button once and let go.NOTE: See the fol

1Table Of ContentsImportant Safety Information ...

19If the unit is operating in the TIMER or SCHEDULE mode, and you press any bytton except the button, the TIMER icon begins to

20TIMER/SCHEDULE Button - The button turns the schedule function on and off. Press the Schedule button once to turn on the Schedule (Res

21Remote Control Operation (Continued)SYSTEMSCHEDULEFAN SPEEDFRR081FAN SPEEDSCHEDULESYSTEMFAN MODEPOWERDISPLAYFAN MODEPOWERTEMPERATUREUPTEMPERATUREDOW

22UNIT OPERATIONFront Panel System Mode Sequence (TIMER/SCHEDULE = OFF)There are two system modes of operation. One for a cool only unit (see figure 1

23ELECTRONIC CONTROL SEQUENCE OF OPERATIONCompressor and Reversing Valve ControlCooling De-EnergizedEnergizedOnOnOffOffHeat - Heat PumpHeat - Electric

24Heat Control (Heat Pump Only)Satised PointHeating Mode Control OperationThere are two heating methods: Heat Pump and Electric Resistance Heat. Ther

25This heating is more complex due to the possibility of two heating methods. If the ambient indoor temperature is be-low the heat demand threshold (1

26Condition 2 If the Δ (delta) (set point temperature minus the ambient indoor temperature) is greater than 5 ˚F, then the unit will switch to electr

27Compressor Lock Out TimeThe lockout feature ensures that the compressor is de-energized for a period of time. The timer varies randomly from 180 to

28Fan Operation (Front Panel Mode)Heat – Cool – Auto – Fan OnlyModels starting with SS, SM have 4 speeds. Models with SL, and all Kuhl+ have 3 speedsN

2 IMPORTANT SAFETY INFORMATION The information contained in this manual is intended for use by a qualied service technician

29Remove the decorative front cover by using the tool provided (see gure below).Tighten the four (4) captive screws as indicated by the arrows in the

30REPLACING THE INDOOR COIL THERMISTORREPLACING THE CONTROL BOARDELECTRIC SHOCK HAZARD WARNINGDisconnect power to the unit before servicing. Fai

31Airflow Selection and AdjustmentAir flow direction adjustmentleft or right side of the discharge opening. Each of the banks of louvers can be direc

32CAPACITORSELECTRIC SHOCK HAZARD WARNINGTurn off electric power before servicing. Discharge capacitor with a 20,000 Ohm 2 Watt resistor before handli

33HEATING ELEMENTAll heat pumps and electric heat models are equipped with a heating element with the exception of model YS10M10. The othe

34If 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

35Suction Line Evaporator Coil Metering Device Refrigerant Strainer Discharge Line Condenser Coil Compressor Refrigerant Drier Liquid Line

36• 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.

37Proper refrigerant charge is essential to proper unit operation. Operating a unit with an improper refrigerant charge will result in reduced perform

38 3. Install a process tube to sealed system. 4. Make necessary repairs to system. 5. Evacuate system to 200 microns or less. 6. Weigh in refr

3• 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

39Undercharged Refrigerant SystemsAn undercharged system will result in poor performance (low pressures, etc.) in both the heating and cooling cycle

40Restricted Refrigerant SystemTroubleshooting a restricted refrigerant system can be difcult. The following procedures are the more common problems

41METERING DEVICECapillary Tube SystemsAll units are equipped with capillary tube metering devices. Checking for restricted capillary tubes. 1. Conn

42NOTE: System operating pressures must be near normal before valve can shift. REVERSING VALVE DESCRIPTION/OPERATIONThe Reversing Valve controls the d

43Reversing Valve in Heating Mode TESTING THE REVERSING VALVESOLENOID COIL The solenoid coil is an electromagnetic type coil mounted on the reversing

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

45Locked 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

46Single Phase Resistance Test tes dna slanimret rosserpmoc eht morf sdael eht evomeRthe ohmmeter on the lowest scale (R x 1). nommoc slanimret mo

47Recommended procedure for compressor replacement1. Be certain to perform all necessary electrical and refrigeration tests to be sure the compresso

481.2.3.4.5.ELECTRIC SHOCK HAZARD WARNINGTurn off electric power before service or installation.Failure to do so may result in personal injury, or dea

4PROPERTY DAMAGE HAZARDSFIRE DAMAGE HAZARDS:• Read the Installation/Operation Manual for the air conditioning unit prior to operating.• Use air cond

49ROUTINE MAINTENANCE COILS AND BASE PAN The indoor coil (evaporator coil), the outdoor coil (condenser coil) and base pan should be inspected period

50SLEEVE / DRAIN Inspect the sleeve and drain system periodically (at least yearly or bi-yearly) and clean of all obstructions and debris. Clean both

51ROUTINE MAINTENANCE (Continued) Standard lter cleaning, removal and installation instructions STEP 1. STEP 2.FILTERFILTERGRIPSTEP 2. Swing the f

52u 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 supp

53Service and AssistanceBefore calling for service, please check the “Troubleshooting Tips” section on pages 40 and 41. This may help you to nd the

54SET POINTFAUTO FANSET POINTFAUTO FANHow to Check the Diagnostic Codes Erasing the Diagnostic CodesSee codes chart on next page.To check the active s

55ERROR CODES AND ALARM STATUSError CodeProblem Control Board's Action1Front Panel Button Stuck For More Than 20 SecondsContinue to monitor for &

56SET POINTFAUTO FANSET POINTFAUTO FANTest ModePress the , , & buttons simultaneously for 3 seconds. This will activate the

57THERMISTORS’ RESISTANCE VALUES(This Table Applies to All Thermistors) TEMP RESISTENCE (K Ohms) RESISTANCE TOLERANCE % F MAXMINMIN MAXCENTR-25

58 ROOM AIR CONDITIONER UNIT PERFORMANCE TEST DATA SHEET JOB NAME________________________________ TECHS NAME____________________________________ DA

5This service manual is designed to be used in conjunction with the installation and operation manuals provided with each air conditioning system.

59Problem Possible Cause Possible SolutionUnit does not operate. The unit is turned to the off position, Turn the unit to the on position and raise

60Problem Possible Cause Possible SolutionUnit Does Not Cool/Heat On And Off Too Frequently (continued). The outside temperature is below 60° F (16° C

61COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS esuaC elbissoP melborPCompressordoes not run Low voltage Check voltage at compressor.

62COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS Possible Solution esuaC elbissoP melborPUnit does not run Fuse blown or circuit tripped

63COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS Possible Solution esuaC elbissoP melborPCompressor runs for short periods only. Cycle

64COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS esuaC elbissoP melborPWater “spitting” into room Sublimation:When unconditioned satur

65HEAT / COOL ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS Possible SolutionPossible SolutionesuaC elbissoPmelborPRoom temperature uneven (Heatin

66 noitcAesuaC elbissoPmelborPUnit cools when heat is called forIncorrect wiring Refer to applicable wiring diagramDefective solenoid coil Check for c

67HEAT PUMP ROOM AIR CONDITIONERS: TROUBLE SHOOTING TIPSELECTRICAL TROUBLESHOOTING CHART - HEAT PUMPReversing Valve StuckReplace the Reversing ValveRe

68DISCHARGE TUBE SUCTION TUBE to Tube to OUTSIDE from Compressor Tube to INSIDE Capillary Tube Capillary Tube CompressorRIGHT Pilot LEFT Pil

6Serial Number Decade Manufactured L=0 C=3 F=6 J=9 A=1 D=4 G=7 B=2 E=5 H=8 A B A R 00001 Production Run Number Year Manufa

69ELECTRONIC CONTROL BOARD COMPONENTS IDENTIFICATIONLow Fan speedMedium Fan speedHigh Fan speedMax Fan speed(Heat+Cool units along with Cool models SL

70Kühl E-Control Service Kit 1 fo 1 egaP .oC gninoitidnoC riA hcirdeirF )21/7( 00_6589102910001 Reunion Place, Suite 500 / San Antonio, Texas 78216 (

71Kϋhl Electronic ControlCOOL ONLY ModelsSS08N10-A, SS10N10-A, SS10N10-B, SS12N10-A, SS14N10-A, SS14N10A-A, SM15N10-A, SS12N30-A, SS15N30-A, SM18M30-A

72Kϋhl Electronic ControlCOOL ONLY ModelsSL22N30-A, SL24N30-A, SL24N30-BHIGHMAXMEDIUMRSRSCF4F3F1NEUTRAL(115 V)92170021COMPL1L2 OR

73Kϋhl Electronic ControlCOOL ONLY ModelsSL28N30-A, SL28N30-B, SL28N30-CHIGHMAXMEDIUMRSRSCF4F3F1NEUTRAL(115 V)92170013COMPL1L2 OR

74Kϋhl Electronic ControlCOOL ONLY ModelsSL36N30-AHIGHMAXMEDIUMRSRSCF4F3F1NEUTRAL(115 V)92170018COMPL1L2 OR N4315LOWF22L E G E N D

75Kϋhl Electronic ControlCOOL with ELECTRIC HEAT ModelsES12N33-A, ES15N33-A, EM18N34-A, EM24M34-AMEDLOWHIGHRSRSCF1F2EH1NEUTRAL(115

76Kϋhl Electronic ControlCOOL WITH ELECTRIC HEAT ModelsEL36N35-AMEDLOWHIGHRSRSCF1F2EH1NEUTRAL(115 V)92170020COMPL1L2 OR N4315F32L

77Kϋhl Electronic ControlHEAT PUMP without ELECTRIC HEATYS10N10-AHIGHMAXMEDIUMRSRSCCOMPRESSORF4F3F1NEUTRAL(115 V)92170015COMPL1L2

78Kϋhl Electronic ControlHEAT PUMP modelsYS12N33-A, YM18M34-AMEDIUMLOWHIGHRSRSCCOMPRESSORF4F3NEUTRAL(115 V)92170016COMPL1L2 OR N43

7* Operates on 115 volt and is not equipped with supplemental heat. Will not provide heat at temperatures below 40°F.Friedrich room air conditioners a

79Kϋhl Electronic ControlHEAT PUMP modelYL24N35-AMEDIUMLOWHIGHRSRSCF4F3NEUTRAL(115 V)92170017COMPL1L2 OR N435F22- HEATER ELEMENT-

80Replacement Remote Control Configuration InstructionsFor Use with Kühl (cool only models) and Kühl + (cool & heat models), N models only. Conte

81Step 4. Using the Remote Control  Increase or  Decrease Keys, match the configuration number displayed on the Remote Control to the number shown

82Kühl User Interface Service Kit Replacement Instructions For Use with Kühl (cool only models) and Kühl + (cool and heat models) ATTENTION! - Please

83PARTS SECTIONKühl & Kühl+ Standard Chassis Unit Exploded Diagram

84PARTS SECTIONKühl & Kühl+ Standard Chassis Unit Exploded Diagram

85Kühl & Kühl+ Small-Chassis 2012 Parts ListItemPart NumberPart DescriptionES12N33-AES15N33-ASS08N10-ASS10N10-ASS12N10-ASS12N30-ASS14N10-ASS15N30-

86ItemPart NumberPart DescriptionES12N33-AES15N33-ASS08N10-ASS10N10-ASS12N10-ASS12N30-ASS14N10-ASS15N30-AYS10N10-AYS12N33-A162050304CONDENSOR COIL1161

87Kühl & Kühl+ Medium-Chassis 2012 Parts ListItem Part Number Part Description EM18N34-A EM24N34-A SM15N10-A SM18N30-A SM21N30-A SM24N30-A YM18N34

88ItemPart NumberPart DescriptionEM18N34-AEM24N34-ASM15N10-ASM18N30-ASM21N30-ASM24N30-AYM18N34-A161850227CONDENSOR COIL1161850140CONDENSOR COIL1116185

8Installation Information / Sleeve Dimensions* Minimum extensions when mounted in a window.** Minimum widths achieved using one side curtain assembly

89Kühl & Kühl+ Large-Chassis 2012 Parts ListItem Part Number Part Description EL25N35-A EL36N35-A SL22N30-A SL25N30-A SL28N30-A SL36N30-A YL24N35-

90Kühl & Kühl+ Large-Chassis 2012 Parts ListItem Part Number Part Description EL25N35-A EL36N35-A SL22N30-A SL25N30-A SL28N30-A SL36N30-A YL24N35-

91Addendum 1Schedule Table with Energy Saving ValuesStart Time 600 Start Time 600 Start Time 600

92 Friedrich Air Conditioning Company 10001 Reunion Place, Suite 500 San Antonio, TX 78216 800.541.6645www.friedrich.com ROOM AIR CONDITIONERS LIMITED

93Kuhl-Serv/PartsMan (9-12)FRIEDRICH AIR CONDITIONING CO. 10001 Reunion Place, Ste. 500, San Antonio, TX 78216(210) 546-0500 877-599-5665 x 261 FA

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.fried