Friedrich SM18N30* manuel d'utilisation

S er vice Ma nual Standard Chas sis Mode ls Roo m A ir C ond i tio ner s 11 5 - V o l t : 2 0 8 -2 3 0 - V o l t : Coo l O nl y S S 0 8 M10 , S S10 M10 , S S12M10 , S S14 M10 SS 1 2M30, SS 1 5M30, SM 1 8 M30, SM2 1 M30 Cool with Electr ic Heat 2 0 8 -2 3 0 - V o l t : Heat Pump with Electric Heat 2 0 8 -2 3 0 - V o l t : Heat Pump 11 5 - V o l t : [...]

1 T able Of Contents Important Safety Information ..................................................................................................................................... 2-4 Introduction .....................................................................................................................................................[...]

2 IMPORT ANT S AF ET Y I NF ORMA TION The infor mation c ontaine d in this manual is intended fo r use by a qualied ser vic e technic ian who is fami liar with the s afety pro cedure s required for inst allation and re pair , and who is equipped wit h the prop er tools and test instr uments required to ser vic e this pro duct. Installatio n or r[...]

3 • D o not spray or pour water on the retur n air grille, disc harge air gr ille, ev apor ator coil, c ontrol pan el, and sleeve on the room si de of the air c onditionin g unit while cl eaning. • E lectr ic al co mponent malf unctio n caused by water could r esult in elec tri c shock o r other elec tr ically unsafe con ditions wh en the power[...]

4 PRO PER T Y DAM AGE H A Z A R DS FIRE DAMA GE HA Z A RDS: • Read the Installati on/O peration M anual for the ai r condit ioning unit pr ior to op erating. • U se air co nditioner o n a single dedic ated circ uit within t he speci ed amp erage rating. • Conne ct to a prope rly groun ded outlet only . • Do not remove ground prong of plu[...]

5 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 i[...]

6 Serial 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 Y ear Manufactured A=1 D=4 G=7 K=0 B=2 E=5 H=8 C=3 F=6 J=9 Product Line R = RAC 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 1st Digit – Function S = Straight Cool, V alue Series Y = Heat P[...]

7 * Operate s on 1 1 5 vol t and i s no t equip pe d with su ppl emental he at . Will no t pr ovide he a t a t temperat ure s bel ow 40°F . Fr ie drich room air condi ti oners ar e desi gn ed to op er at e in outdo or temperature s fro m 60° F to 1 15° F . Kühl+ Heat Pump he atin g info rma ti on (shown in re d) indic ates he at pum p per form [...]

8 Installation Information / Sleeve Dimensions * Mi nim um ex ten sio ns w hen m ou nted i n a wi ndo w. * * Min imu m wi dth s ac hieve d us ing o ne si de c ur t ai n ass em bly a s opp os ed to b ot h in a st an dar d ins ta llat io n. NOT E: S,M a nd L s leeve s may b e ins tal le d in wi nd ow wi th n o sid e ki ts i f pro pe rl y ins ta lle d[...]

9 LISTED EL ECT RI C AL D A T A ELECTRIC SHOCK HAZARD W ARNING T urn off electric power before service or installation. All e lect ric al c onne cti ons and wir ing M UST b e install ed by a qualied elect ric ian and co nform to the Nat ional Ele ctr ic al Co de and all l oc al co des whic h have jurisdic tio n. Failure to do so c an r esult in [...]

10 10 If you ha ve fuses, they should be of the time delay t yp e. Bef ore you install or r el ocate this unit, be sure that the amperage rating of the circuit breaker or time d elay fuse do es not exceed t he amp rat ing listed in T able 1. The c ord provi ded will c ar r y the pro per amount of e lect ric al power to th e unit; an exte nsion c or[...]

11 K uhl C ontrol Optio ns K ü h l C o n t r o l O p t i o n s Th e Kü hl gi ve s yo u a var ie ty of opt ion s for con tr ol , prog ra mm ing , and sc he d ul in g in cl ud i ng wir el ess ca pab il it ies Th e n ew F ri ed ri ch Li nk ™ Ad ap t e r (sold seperately) allows you to conviently co nt ro l , p ro gr am a nd mo n it or y ou r air c[...]

12 Control Panel and D isplay Identi cat ion 2 DIGIT DISPLA Y Shows Setting for: - Set Point (T emperature) - Room Temperature - Clock (AM/PM) ON / OFF Turns unit on/off SYSTEM Cycles between AUTO, HEAT, COOL, or FAN ONL Y (if equipped) F AN MODE Sets fan to either: - Cycle automatically - Run continuously HEAT FILTER Check / Clean AUTO SPEED Au[...]

13 When in t he SYSTE M COO L or HEAT or FAN ONLY mode, you can also select FAN MODE, FAN SPEED, TIMER SCHEDULE, and . The SYSTEM MODE does not change. SET POINT F CONTINUOU S SET POINT F AUT O F AN SET POINT F AUT O F AN SYSTEM - The SYSTEM butto n allo ws you to sequ ent ial l y sel ect the modes of oper ation. To select, press once and let go. C[...]

14 SET POINT F AUT O F AN SET POINT F AUT O F AN UP and DO WN - ar rows - Pressing eit her or button changes the system's set point ( desire d room temperat ure) . Th ese buttons are also used fo r setting the T ime r and othe r p r og r amming . FRR101 FRR100 One p res s equals 1 degr ee of c hange. H olding the b utto n down for m ore than 0[...]

15 the o r bu tto ns to chan ge the s ett ing. DI M Funct i on Ther e ar e thre e separ ate display br ight ness levels, AUTO, 20% an d full ( 10 0%) . T o cha ng e the DIM se t tin g, pr es s th e Power but to n for thr ee sec onds. FRR192 The 1 in dic ates a DI M set ting of Auto (factor y defaul t on ne w unit s). Use FRR193 The 2 indicate s a D[...]

16 NO TE: T he schedule options 1 and 2 have facto ry pre- pr og r ammed settings w hich can only be changed by using the WiFi Fr ied r ichLin k ™ adapto r ( an accesso ry). W ith it, you can cr eate you r own custom schedule p r og r am. S ee page 10 fo r mo r e info r mation . NO TE: Once you have selected the T IM ER or SCHEDULE we must fi r s[...]

17 SET POINT F AUT O F AN Tim e r St ar t Ti m e The disp lay sh ows a n orm al syste m. Pr ess and ho ld the H OUR bu tto n (F igu r e 4 ) fo r 3 seconds. N ote: T he T ime r sta r t- stop times may be set even when t he system is in t he Timer or Sc hedule m ode. FRR140 AM ON FRR141 Use the or butto n to adjust the hour . Press the TIM ER SET but[...]

18 16 Tur ning the T IM ER O N once the time and day, the sta r t and top times have been set : Pr ess the button once and let go . NO TE: S ee the follo w ing T IM ER O N /O FF scena r ios. SET POINT F AUT O F AN FRR144 The display shows a nor mal sys tem. Press and hold t he MIN but ton (Figure 4) for 3 secon ds. Note th e Timer st ar t - stop ti[...]

19 If the unit is ope r ating in the T IM ER or SCHEDU LE mode, and you pr ess any bytton except the button, the T IM ER icon begins to blink. A ll button action is blocked . SET POINT SCHEDULE F AUT O F AN SET POINT F AUT O F AN SET POINT F AUT O F AN Tim e r OFF S ce na r io s Sce na ri o 1 Sce na ri o 2 The display sh ows the uni t in Timer mode[...]

20 TIMER/SCHEDULE Button - The button turns the 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 the schedule function off. FRR080 30° 45° 60° 30 ° 45° 60° 25ft 25ft 8ft 4ft 25ft 16ft 6ft[...]

21 Remote Control Operation (Continued) SYSTEM SCHEDULE F AN SPEED FRR081 F AN SPEED SCHEDULE SYSTEM F AN MODE POWER DISPLA Y F AN MODE POWER TEMPERA TURE UP TEMPERA TURE DOWN F AUTO F AN AUTO CONTINUOUS C SYSTEM MODE F AN MODE F AN SPEED SCHEDULE ICON HEA T ICON F AN ONL Y ICON °F / °C ICONs FRR082 F A UT O F AN A UT O C ONTINUOUS C COOL ICON F [...]

22 UNIT OPERA TION 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. Timer/ Schedule Timer/ Sc[...]

23 ELECTR ONIC CONTROL SEQUENCE OF OPERA TION Compressor and Re versing V alve Con t rol Co oling De - Energiz ed Energ ized On On Off Off Heat - Heat Pu mp Heat - Electric F an O nly * The Reversing valve stays in the l ast state until a c all for h eat or c oolin g ( see g ure below) Compressor Operat ion : Cooling Mode Onc e the am bient temp[...]

24 Heat Control ( Heat Pump Only ) Satised Poin t Heating Mode Control Oper ation There are t wo heatin g methods: Heat Pump and Elect ric Resist ance H eat. There are 3 t ype s of units that provide heati ng: Heat Pump Only (Mode l YS 1 0M1 0 ) Heat Pump with Elec tr ic Heat and C ool wit h Electr ic Heat . Heat Control Operation Heat Pump Only[...]

25 This heating i s more c omplex due to the pos sibilit y of t wo heating methods. If t he ambient indoo r temperature is be - low the heat demand t hreshol d ( 1.5 ˚F bel ow the heat set point temperature ), and the co mpresso r is not loc ked out, turn on c ompr essor . If the ambient ind oor temperature i s 0.25˚F above the heat set point tur[...]

26 Condition 2 If the Δ ( delta ) ( set point temperature minus the ambient indoor temperature ) is greater than 5 ˚F , the n the unit will switch to electr ic heat, if available. The unit will continue to operate with el ectr ic heat until the heat demand is satis ed. Note that the elec tric h eat switches on af ter the Δ temp passes 5° F a[...]

27 Compressor Lock Out Time The loc kout feature ensures that the c ompres sor is de - ene rgized for a per iod of tim e. The timer varie s randomly from 180 to 240 seco nds The c ompres sor loc kout is initiated ev er y tim e the c ompres sor is “of f ” due to: ( 1 ) Satisf ying t he temperature set point ( 2 ) Changing m ode to fan only or h [...]

28 F an Operation (F r ont Panel Mode ) Heat – C ool – Auto – Fan Only Mod els sta r ting w ith SS , SM have 4 speeds. M odel s with S L, and all Kuhl+ have 3 speeds Note that in t he AUTO mode, the spee d of the fan wi ll be shown by illumi nating th e number of bar s in the sp eed tr iang le. Speed Selection 1 2 3 4 AUTO Continuous "On[...]

29 Remove the decorative front cover by using the tool provided (see gure below). T ighten 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[...]

30 REPLACING THE INDOOR COIL THERMIST OR REPLACING THE CONTROL BOARD ELECTRIC SHOCK HAZARD W ARNING 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 Dischar[...]

31 A i r f l o w S e l e c t i o n a n d A d j u s t m e n t A i r fl o w d i r e c t i o n a d j u s t m e n t lef t or r ight si de of the d is char ge ope ni ng. Each of the b an ks of louver s can be directe d left, rig ht, up o r down in or de r to ac hieve the m ost optimum move it in the dir ecti on that you would li ke t he a ir to be dire [...]

32 CAP ACIT ORS ELECTRIC SHOCK HAZARD W ARNING T urn off electric power before servicing. Discharge capacitor with a 20,000 Ohm 2 W att 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 wat[...]

33 HEA TING 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. The [...]

34 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 electroni[...]

35 Suction Line Evaporator Coil Metering Device Refrigerant Strainer Discharge Line Condenser Coil Compressor Refrigerant Drier Liquid Line 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 mor[...]

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. • 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 [...]

37 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[...]

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 refrigerant with the property quantity of R-410A refrigerant. 7. Start unit, and verify performance. 8. Crimp the process tube and solder the end shut. Proper safety procedures must be followed, and proper prote[...]

39 Underchar ged R efriger ant 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. T o check for an undercharged system, turn the unit on, [...]

40 R estricted Refrigerant System T roubleshooting 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 circulat[...]

41 METERING DEVICE Capillar y T ube Systems 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. 3. Sw[...]

42 NOTE: System operating pressures must be near normal before valve can shift . REVERSING V AL VE DESCRIPTION/OPERA TION The Reversing V alve 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[...]

43 Reversing V alve in Heating Mode TESTING THE REVERSING V AL VE SOLENOID COIL 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. T urn of f high voltage electrical power to unit. 2. Unplug line voltage lead from reversing valve coil. 3. [...]

44 8. Pressurize sealed system with a combination of R-410A and nitrogen and check for leaks, using a suitable leak detector . Recover refrigerant per EP A 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 pl[...]

45 Lock ed R otor V olta ge (L.R.V .) T est 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 [...]

46 Single Phase Resistance T est t e s d n a s l a n i m r e t r o s s e r p m o c e h t m o r f s d a e l e h t e v o m e R the ohmmeter on the lowest scale (R x 1). n o m m o c s l a n i m r e t m o r f r e t e m m h o e h t f o s d a e l e h t h c u o T r e t e m m h o e h t f o s d a e l e h t h c u o t , t x e N . ) ” S “ o t ” C “ ( t[...]

47 R ecommended pr ocedur e for compressor replacement 1. Be certain to perform all necessary electrical and refrigeration tests to be sure the compressor is actually defective before replacing. 2. Recover all refrigerant from the system though the process tubes. PROPER HANDLING OF RECOVERED REFRIGERANT ACCORDING TO EP A REGULA TIONS IS REQUIRED. D[...]

48 1. 2. 3. 4. 5. ELECTRIC SHOCK HAZARD W ARNING T urn off electric power before service or installation. Failure to do so may result in personal injury , or death. S ealed Re f rigera t ion Syst em c on t ain s re f rigeran t and oil under high pre ss ure . Proper safety procedures must be followed, and proper protective clothing must be worn when[...]

49 R OUTINE MAINTENANCE COILS AND BASE P AN 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 , b[...]

50 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 [...]

51 R OUTINE MAINTENANCE (Continued) Standar d lter c leaning, r emo val and installa tion instr uctions S TE P 1 . S TE P 2. FIL TER FIL TER GRIP S TE P 2 . Sw ing the front frame open. Clean the front fram e b y washing S TE P 1 . NOTE: HANDLE FIL TER GRIP TOP T AB FRONT FRAME WITH ST ANDARD MESH FIL TER A F i gu re 1 F i gu re 3 F i gu re 4 F [...]

52 u Ensure th at the c ircui t breaker ( s) or fuse(s ) and sup ply c ircui t wire size have bee n sized c or rec tly. If the unit was sup plie d with a p ower suppl y cor d, insure t hat it is sto red pr oper ly. u Ensure that the entire installation is in complianc e with all applicable national and local c odes and ordinances having jurisdic ti[...]

53 Ser vi ce and A s sis tanc e Before calling for servic e, please check the “ T roubleshooting Tips” section on page s 40 and 4 1. This may help you to  nd the answer to your prob lem, avoid unne ces sar y s er vi ce c alls, a nd save you th e cost o f a ser vi ce c all if the pr oble m is not due t o the pr oduc t itse lf. If you have che[...]

54 SET POINT F AUT O F AN SET POINT F AUT O F AN Ho w to Ch eck th e D ia gno st ic Cod es Er asi ng th e D ia gno s t ic Cod es S ee codes cha r t on next page . T o check the active system e rr or s, p r ess the & keys fo r 3 sec . An “E” w ill appea r in the display. U se the or keys to sc r oll th r ough any system e rr or s. Only activ[...]

55 ERROR CODES AND ALARM ST A TUS E rr or Code Pr ob lem C ont rol Boar d' s A ction 1 Fr on t P ane l Butt on Stuck For Mo re T han 20 Sec ond s C on ti nue to m on itor for "O PE N" (Unstuc k) switch. Do no t proce ss switch i npu t. ENSURE FRONT CO VE R DO ES NOT D EP R ESS BU TT ONS 2 I npu t Volt age Out of S pe cificati on ( 10[...]

56 SET POINT F AUT O F AN SET POINT F AUT O F AN T es t M od e Pr ess the , , & buttons simultaneously fo r 3 seconds. T his w ill activate the test mode . T he ON icon w ill appea r fo r 5 seconds and the display w ill then r eve rt to the no r mal display. T he test mode w ill time out afte r 1 hou r. To cancel test mode, unplug and replug th[...]

57 THERMISTORS’ RESISTANCE VALUES (This Table Applies to All Thermistors ) TEMP RESISTENCE (K Ohms) RESISTANCE TOLERANCE % F MAX MIN MIN MAX CENTR -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.[...]

58 ROOM AIR CON DITIONER UNIT PERFORMANC E TEST DATA SHEET JOB NAM E_____________ __________ _________ TECHS NAME__________ ____________ _________ _____ DATE: _____ __________ MODEL:______ _________ SERIAL:_ _______ ________ HOW IS ALL OF THE INSTALLATION? GOOD BAD YES NO I S A C H A S S I S S E A L G A S K E T I N T A L L E D ? I S T H E F R E S H[...]

59 Problem Possible Cause Possible Solution Unit does not operate. The unit is turned to the off position, T urn the unit to the on position and raise or lower temperature setting (as appropriate) to call for operation. The LCDI power cord is unplugged. Plug into a properly grounded 3 prong receptacle. See “Electrical Rating T ables” on pg. 6 f[...]

60 Problem Possible Cause Possible Solution Unit Does Not Cool/Heat On And Of f T oo Frequently (continued). The outside temperature is below 60° F (16° C). Do not try to operate your air conditioner in the cooling mode when the outside temperature is below 60° F (16° C). The unit will not cool properly , and the unit may be damaged. The digita[...]

61 COOLING ONL Y R OOM AIR CONDITIONERS: TROUBLESHOO TING TIPS e s u a C e l b i s s o P m e l b o r P Compressor does not run Low voltage Check voltage at compressor . 1 15V & 230V units will operate at 10% voltage variance T emperature not set cold enough or room air thermistor inoperative Set temperature to lower than ambient position. Test [...]

62 COOLING ONL Y R OOM AIR CONDITIONERS: TROUBLESHOO TING TIPS Possible Solution e s u a C e l b i s s o P m e l b o r P Unit does not run Fuse blown or circuit tripped Replace fuse, reset breaker . If repeats, check fuse or breaker size. Check for shorts in unit wiring & components Power cord not plugged in Plug it in System button in “OFF?[...]

63 COOLING ONL Y R OOM AIR CONDITIONERS: TROUBLESHOO TING TIPS Possible Solution e s u a C e l b i s s o P m e l b o r P Compressor runs for short periods only . Cycles on overload Overload inoperative. Opens too soon Check operation of unit. Replace overload if system operation is satisfactory Compressor restarted before system pressures equalized[...]

64 COOLING ONL Y R OOM AIR CONDITIONERS: TROUBLESHOO TING TIPS e s u a C e l b i s s o P m e l b o r P W ater “spitting” into room Sublimation: When unconditioned saturated, outside air mixes with conditioned air , condensation forms on the cooler surfaces Ensure that foam gaskets are installed in between window panes & in between the unit [...]

65 HEA T / COOL ONL Y ROOM AIR CONDITIONERS: TROUBLESHOO TING TIPS Possible Solution Possible Solution e s u a C e l b i s s o P m e l b o r P Roo m t emper atur e un eve n (He at in g cycl e) 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, window[...]

66 n o i t c A e s u a C e l b i s s o P m e l b o r P Unit cools when heat is called for Incorrect wiring Refer to applicable wiring diagram Defective solenoid coil Check for continuity of coil Reversing valve fails to shift Block condenser coil & switch unit to cooling. Allow pressure to build up in system, then switch to heating. If valve fa[...]

67 HEA T PUMP R OOM AIR CONDITIONERS: TROUBLE SHOO TING TIPS ELECTRICAL TROUBLESHOO TING CHAR T - HEA T PUMP Reversing V alve Stuck Replace the Reversing V alve Replace the Solenoid Coil NO Is the Solenoid Coil Good? Is Line V oltage Present at the Solenoid Is the Selector Switch Set for Heat? NO SYSTEM COOLS WHEN HEA TING IS DESIRED. YES HEA T PUM[...]

68 DISCHARGE TUBE SUCTION TUBE to T ube to OUTSIDE from Compressor T ube to INSIDE Capillary T ube Capillary T ube Compressor RIGHT Pilot LEFT Pilot COIL COIL 14 NORMAL FUNCTION OF V AL VE V AL VE OPERA TING DISCHARGE TUBE from Compressor SUCTION TUBE to Compressor Tube to INSIDE COIL Tube to OUTSIDE COIL LEFT Pilot Capillary Tube RIGHT Pilot Capil[...]

69 ELECTRONIC CONTR OL BO ARD COMPONENTS IDENTIFICA TION 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 V alve Heater Relay Heater Relay Compressor Relay LN 1 15 or 230 V AC V oltage Conguration (See next page for details) T ransformer Indoor Coi[...]

70 Kühl E-Control Service Kit 1 f o 1 e g a P . o C g n i n o i t i d n o C r i A h c i r d e i r F ) 2 1 / 7 ( 0 0 _ 6 5 8 9 1 0 2 9 10001 Reunion Place, Suite 500 / San Antonio, Texas 78216 (210) 546-0500 / (800) 541-66 45 / www .f r ied r ich . co m Configuration Instructions – Electronic Contr ol Gen. 2 For Use with Kühl (cool only models) [...]

71 Kϋhl Electronic Contr ol COOL ONL Y 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 HIG H MAX MEDIUM R S R S C COMPR ESSOR       F4 F3 F1 NEUTRAL (11 5 V) 9217001 9 COMP L1 L2 OR N 4 3 1 5 LOW F[...]

72 Kϋhl Electronic Contr ol COOL ONL Y Models SL22N30-A, SL24N30-A, SL24N30-B HIG H MAX MEDIUM R S R S C       F4 F3 F1 NEUTRAL (11 5 V) 9217002 1 COMP L1 L2 OR N 4 3 1 5 LOW F2 2 L E G E N D U S E R I N T E R F A C E SCHEMATIC (230/ 208 V) L2 OLP OLP COMPRESSOR HERM COM CAP FA N MT R FAN[...]

73 Kϋhl Electronic Contr ol COOL ONL Y Models SL28N30-A, SL28N30-B , SL28N30-C HIG H MAX MEDIUM R S R S C       F4 F3 F1 NEUTRAL (11 5 V) 9217001 3 COMP L1 L2 OR N 4 3 1 5 LOW F2 2 L E G E N D U S E R I N T E R F A C E SCHEMATIC (230/ 208 V) L2 OLP OLP COMPRESSOR HERM COM CAP FA N MT R FA[...]

74 Kϋhl Electronic Contr ol COOL ONL Y Models SL36N30-A HIGH MAX MEDIUM R S R S C     F4 F3 F1 NEUTRAL (115 V) 9217001 8 COM P L1 L2 OR N 4 3 1 5 LOW F2 2 L E G E N D U S E R I N T E R F A C E SCHEMATIC (230/ 20 8 V) L2 OLP OLP COMPRESSOR HERM COM CAP FAN MTR FAN COM CAP PART N O. REV. 01[...]

75 Kϋhl Electronic Contr ol COOL with ELECTRIC HEA T Models ES12N33-A, ES15N33-A, EM18N34-A, EM24M34-A MED LOW HIG H R S R S C     F1 F2 EH1 NEUTRAL (11 5 V) 9217001 4 COMP L1 L2 OR N 4 3 1 5 F3 2 L E G E N D U S E R I N T E R F A C E SCHEMATIC (230/ 208 V) L2 OLP OLP COMPRESSOR HERM COM [...]

76 Kϋhl Electronic Contr ol COOL WITH ELECTRIC HEA T Models EL36N35-A MED LOW HIGH R S R S C       F1 F2 EH1 NEUTRAL (115 V) 9217002 0 COM P L1 L2 OR N 4 3 1 5 F3 2 L E G E N D U S E R I N T E R F A C E SCHEMATIC (230/ 20 8 V) L2 OLP OLP COMPRESSOR HERM COM CAP FAN MTR FAN COM CAP PART N [...]

77 Kϋhl Electronic Contr ol HEA T PUMP without ELECTRIC HEA T Y S10N10-A HIG H MAX MEDIUM R S R S C COMPR ESSOR       F4 F3 F1 NEUTRAL (11 5 V) 9217001 5 COMP L1 L2 OR N 4 3 1 5 LOW F2 2 - HEATER ELEMENT - INSUL ATOR - GROUNDED LEAD SYMBO L - COMB INATION TE RMINAL - THERM ISTER T HTR CAP[...]

78 Kϋhl Electronic Contr ol HEA T PUMP models Y S12N33-A, YM18M34-A MEDIUM LOW HIG H R S R S C COMPR ESSOR       F4 F3 NEUTRAL (11 5 V) 9217001 6 COMP L1 L2 OR N 4 3 5 F2 2 - HEATER ELEMENT - INSUL ATOR - GROUNDED LEAD SYMBO L - COMB INATION TE RMINAL - THERM ISTER T HTR CAP COM PR UI OLP[...]

79 Kϋhl Electronic Contr ol HEA T PUMP model YL24N35-A MEDIUM LOW HIG H R S R S C       F4 F3 NEUTRAL (11 5 V) 9217001 7 COMP L1 L2 OR N 4 3 5 F2 2 - HEATER ELEMENT - INSUL ATOR - GROUNDED LEAD SYMBO L - COMB INATION TE RMINAL - THERM ISTER T HTR CAP COM PR UI OLP HL TF - HEAT ER LIMIT FU[...]

80 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 A TTENTION! – If the Remote Control Does not Control the Unit, Y ou May Need to Configure it. Follow the steps bel[...]

81 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. T o save setting in Remote Control, press and hold the Remote Control SCHED[...]

82 Kühl User Int er f ace Servi ce 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 – [...]

83 P ARTS SECTION K ühl & K ühl+ Standar d Chassis Unit Exploded Diag r am[...]

84 P ARTS SECTION K ühl & K ühl+ Standar d Chassis Unit Exploded Diag r am[...]

85 K ühl & K ühl+ Small-Chassis 2012 P ar ts 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 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 PAI[...]

86 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 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 FRIEDR[...]

87 K ühl & K ühl+ Medium-Chassis 2012 P ar ts List Item Part Number Part Description EM18N34-A EM24N34-A SM15N10-A SM18N30-A SM21N30-A SM24N30-A YM18N34-A 1 61850227 CONDENSOR COIL 1 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 S[...]

88 Item Part Number Part Description EM18N34-A EM24N34-A SM15N10-A SM18N30-A SM21N30-A SM24N30-A YM18N34-A 1 61850227 CONDENSOR COIL 1 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[...]

89 K ühl & K ühl+ Lar ge-Chassis 2012 P ar ts List 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 "[...]

90 K ühl & K ühl+ Lar ge-Chassis 2012 P ar ts List 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 "[...]

91 Addendum 1 Schedule Table with Energy Saving Values 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 F[...]

92 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 AN Y 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 p[...]

93 Kuhl-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 F AX (210) 546-0631 Email: tac@friedrich.com www .friedrich.com Printed in the U.S.A. TECHNICAL SUPPORT CONT ACT INFORMA TION FRIEDRICH AUTHORIZED P ARTS DEPOTS AAA Refrigeration Service 1322 24th Stre[...]

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.[...]