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1. Notes 1 Before closing ceiling decoration it is necessary to turn on the machine to check air flow at each port noise level connecting pipeline leakage cooling heating effect air duct insulation and condensate pipe drainage etc Close ceiling only when acceptance is OK 2 In case of no cooling heating effect first check power supply phase sequence Z6 protection display is provided on FR D 125 S display panel 3 Installation team shall timely coordinate with decoration team to avoid change of position and installation mode of installed indoor unit keep indoor unit amp condensate pipe clean and reserve maintenance openings for future maintenance V Installation of LCD wire controller for FRD23 B FRD35 B and FRD50 B Refer to following figure for installation mode of LCD wire controller Install junction box at a position in the wall easy to operate Lead in signal line via wall penetrating tube Remove bottom of wire controller box use tapping screws to fit it on the junction box Then fit the wire controller on the bottom piece Junction box Tapping screws PEN Wire controller bottom piece Wire controller 2785 Sa Chun I an x Installation VI Connection of indoor unit with outdoor unit 1 Installation of wall penetrating tube 1 Wall penetrating tube shall be hard polythene tube of about 90 2 Det
2. Outdoor unit FR260 FR D 260 S outdoor unit exploded view 239 Chunlan a Exploded view amp dismantling sequence of parts 2 FR D 260 S outdoor unit schedule No Description QTY No Description QTY 1 Maintenance plate 1 21 Support plate assembly 1 2 Left side plate 1 22 Reversing valve assembly 1 3 Tappine screw 23 One way valve assembly 1 4 Left condenser 1 24 Ko 5 Left air intake assembly 1 25 Air suction pipe assembly 1 6 Left air exhaust pipe ASSY 1 26 _ Electric heating band 2 7 Connector assembly 1 27 Right condenser 1 8 HP valve assembly 1 28 Right air intake pipe assembly 1 9 LP valve assembly 1 29 Right air exhaust pipe assembly 1 10 Bolt M8X 30 12 30 Connector assembly 1 11 Washer 8 12 31 Right side plate assembly 1 12 Spring washer 8 32 jAir water separator 1 13 INut 8 33 Compressor 1 14 Air hood assembly 2 34 Bolt M8 X 50 4 15 Axial flow fan 2 35 Washer 8 4 16 Motor 2 36 Liner tube 4 17 Motor support 1 37 Damper 4 18 Support assemblv 1 38 Chassis 1 19 Control box 1 39 Enclosing plate 1 20 Support strip assembly 1 40 IFixine plate 1 3 FR D 260 S outdoor unit dismantling sequence 1 Remove 14 1 and 39 2 Remove 2 31 21 20 19 3 Remove fan assembly 15 16 17 4 Remove 4 27 18 8 5 Remove 10 22
3. Jo o nuoo AJOWLIY Joou weg Fad Y uools MOTPA essen CM dl NR Rik ai JO OJUOI DITA Pl E RE TT a l ngg X d SATEA Sursioady MA Nd nM d oni pou X uw X N ONJ zoer mE c d 5 amp Josu s ejnjgJeduie Iosues ounje1oduro edid 100PMO 5 nj U Z Z E o EL E juerquue JOOPUT a Fi e A es LL p EE EN Em pun rtoopinO v X O Yun roopu Lo O 2 Lo o bat 50 VA Chunlan a Circuit diagrams ES terminal seat Is Xe mma wire Yi goablesandpower Z nmdwireindoor outdoor byuser Note Ratedcurrent of FRD95unitis30A Pleaseselectsinglepoleautoairswitchof 100A ratedcurrentof 40A setting Outdoor pipe temperature sensor r t LOL Wire controller Fancapacitar Fanmotor Remote controller Mi Fanmotor White so Fancapacitor White P Note X isL5mm2 wire Y is gt 4mm2 wire Z is lmm2 wire indoor outdoorconnectingcablesand powercablesto besupplied by use 51 VA Chunlan a Circuit diagrams Outdoor unit Indoorambient MC REI temperaturesensor J Indoorpipe HEED temperaturesensor Compressor 7 Orange Fanmotor PE Me Fanmotor E temperaturesensor BI
4. X SN 19 de Yi Chunlanx VI Exploded view and dismantling sequence of indoor unit of FR D 95 and FR D 125 S 1 Exploded view of indoor unit of FR D 95 and FR D 125 S Exploded view of indoor unit of FR D 95 and FR D 125 S Chunlan a Exploded view amp dismantling sequence of parts 2 Exploded view schedule of indoor unit of FR D 95 and FR D 125 S No Description Remark Top plate assembly Strainer 1 Evaporator assembly Strainer 2 Water tray assembly Strainer retaining strip Left side plate assembly Fixing block VO foo IN ID m B WW N Left small hole cover plate Square hole cover plate assembly Air intake ha N Bottom plate assembly LA Impeller AR Spiral casing assembly ha N Tapping screw ST4X12 ha nN Front panel assembly A Motor Bolt M6X16 Motor fixing block oo ha No N Capacitor clip N he Capacitor N N Right side plate assembly N LA Right small hole cover plate assembly N AR Mounting strip N CA Bolt with two washers N oN Retainer 20 Yi Chunlan a Exploded view amp dismantling sequence of parts 3 Dismantling sequence of indoor unit of FR D 95 and FR D 125 S 1 Remove 1 2 Remove 2 3 Re
5. Motor Reversing valve assembly Left rear plate assembly VO oo IN o jun A JW N Handle assembly Outdoor electric assembly Top cover assembly ha N Capillary assembly ha LA Condenser assembly ha Right rear plate ha CA Middle baffle plate assembly ha oN Motor support assembly ha N Chassis assembly 4 Chunlan a Exploded view amp dismantling sequence of parts 3 Dismantling sequence of outdoor unit of RD23 B FRD35 B and FRD50 B 1 Remove 11 2 Remove 8 9 3 Remove 14 4 Remove 1 5 Remove 10 6 Remove 5 6 7 Remove 16 8 Remove 2 3 9 Remove 15 10 Remove 7 11 Remove 12 13 12 Remove 4 13 Remove 17 Annex Dismantling sequence of typical parts Outdoor electric assembly 1 Remove top cover assembly 11 2 Remove handle assembly 9 3 Remove left rear plate assembly 8 4 Remove outdoor electric assembly 10 Outdoors motor 1 Remove top cover assembly 11 2 Remote handle assembly 9 3 Remove front plate assembly 1 4 Remove fan 5 5 Remove connecting plug from motor 6 and remove the motor Outdoors compressor 1 Remove top cover assembly 11 2 Remove handle assembly 9 and left rear plate assembly 8 3 Remove front plate assembly 1 4 Remove large and small shutoff valves 3 and 2 and remove reversing valve 7 5 Remove compressor cable and the compre
6. No Description Remark 1 ICover plate assembly 2 Top plate assembly 3 Lifting hook 4 Electric box assembly 5 Left support plate 6 Small side plate assembly 7 Eng support assembly 8 Fixing support cover plate assembly 9 Spiral casing assembly 10 Centrifugal impeller 11 Strainer frame 12 Motor 13 Motor support 14 Strainer 15 Bottom plate assembly 16 Water tray assembly 17 Small baffle plate 18 Right support plate 19 Connecting plate assembly 20 Evaporator assembly 21 Fan fixing plate 22 Side plate assembly Yi Chunlan a Exploded view amp dismantling sequence of parts 3 Dismantling sequence of indoor unit of FR95 C and FR125 C S 1 Remove 1 2 Remove 11 14 3 Remove 2 4 Remove 4 3 5 Remove 21 6 Remove 9 10 7 Remove 12 13 8 Remove 8 9 Remove 7 10 Remove 22 11 Remove 19 12 Remove 20 13 Remove 5 18 17 14 Remove 15 Annex Dismantling sequence of typical parts Indoor capacitor 1 Remove 1 2 Remove 11 14 3 Remove capacitor Indoors motor 1 Remove electric box 4 2 Remove cover plate 2 and strainer frame 11 3 Remove plug of indoor motor from control board in electric box 4 Remove fan mounting plate 21 5 Remove spiral casing 9 and impeller 10 6 Remove motor support 13 7 Remove motor 12 and capacitor Exploded view amp dismantling sequence of parts EE lt s SN NS AN
7. yams JI opne oL d l Jossoidurog pr NC 1 Josuos omye1oduio Zj DP di I i Josuas amyIrodua 1 yuerqure 1oopug 21 AA zeen CH Wa Edd E MEL o ai Pau J10 98 U09 OV Wy i d ped i T yun 100pmo yun 1oopug 54 VA Chunlan a Circuit diagrams II Numbers and meanings of each signal line amp terminal 1 Signal line terminals for FRD23 B and FRD35 B 1 Brown Compressor 2 Blue Power supply line N 3 Yellow green Earthing line 4 Black Outdoor motor 5 White Reversing valve coil 2 FRD50 B signal line terminals 1 Brow Compressor 2 Blue Power supply line N 3 Yellow green Earthing line 4 Black Outdoor motor 5 Red Reversing valve coil 3 FR71 B signal line terminals 1 Black Outdoor fan motor 2 Purple Outdoor fan motor 3 Red Outdoor fan motor 4 Gray Reversing valve coil 5 White Compressor AC contactor coil L Phase line feedline of power cable user supplied N Zero line feedline of power cable user supplied L Phase line of indoor outdoor connecting cable of power connecting cable user supplied N Zero line of indoor outdoor connecting cable of power connecting cable user supplied 4 FRD71 B signal line terminals 1 Indoor outdoor connecting cable user supplied for outdoor fan motor 2 Indoor outdoor connecting cable user supplied for outdoor fan motor 3 Indoor outdoor connecting cable user supplied for reversing valve coil 4 Indoo
8. 2 Recommended cross sectional area of air ducts Model FR D 95_ FR D 125 S FR D 180 S FR D 260 S FR D 71 B FR D 100 B Return air duct CS area m 203 204 206 207 20225 203 Air delivery duct CS area m 20 135 20 15 20 27 20325 20 101 220 135 Note FRD23 B FRD35 B and FRD50 B can be directly connected to air delivery return ports via soft connection Refer to indoor unit installation dimensions for size of air delivery return ports 3 Arrangement of fresh air port Rear air return vertical view Jh Fresh air Fresh air port d H d XXX XX XS M One fresh air port at left side right side and rear bottom side Lower air return Return air port gt Return air i Delivery air XX Fresh air Air delivery port Based on FRD23 B FRD35 B and FRD50 B One 100X100 bottom fresh air port is provided at side and bottom face of FRD23 B FRD35 B and FRD50 B respectively Arrangement of fresh air port in FR95 C and FR125 C S is the same as in FRD23 B FRD35 B and FRD50 B and one fresh air port is provided at each side of the unit and can be open to needs Refer to installation mode 3 for fresh air port arrangement for FR D 95 FR D 125 S FR D 71 B FR D 100 B FR D 180 S and FR D 260 S Precautions for arrangement of fresh air ports a Requirement on fresh air damper Closing of fresh air
9. 27 Damper ring 28 Chassis assembly 29045 4 Chunlan a Exploded view amp dismantling sequence of parts 3 Dismantling sequence of outdoor unit of FR D 95 FR D 125 S FR D 100 B FR95 C amp FR125 C S 1 Remove 1 2 Remove 2 3 Remove 3 and 4 respectively 4 Remove 15 5 Remove 14 and 9 respectively 6 Remove 17 7 Remove 5 and 18 respectively 8 Remove 20 and 26 Annex Dismantling sequence of typical parts Outdoor electric assembly 1 Remove top cover 1 2 Remove right panel assembly 4 3 Remove cover plate on electric assembly 17 Outdoor motor 1 Remove top cover assembly 1 2 Remove left panel assembly 3 and right panel assembly 4 respectively 3 Remove front panel assembly 15 4 Remove fan 14 5 Unplug motor 12 and remove motor Outdoor compressor 1 Remove top cover assembly 1 2 Remove right panel assembly 4 3 Remove electric assembly 17 4 Remove reversing valve assembly 20 5 Remove compressor 25 W Chunlan Exploded view amp dismantling sequence of parts IX Exploded view and dismantling sequence of indoor unit of FR D 180 S and FR D 260 S 1 Exploded view of indoor unit of FR D 180 S and FR D 260 S Indoor unit FR D 180 5 FR D 260 S Exploded view of indoor unit of FR D 180 S and FR D 260 S 26 Chunlan a Exploded view amp dismantling sequence of parts 2 Exploded view schedu
10. Apply separate thermal insulation for bid and small pipes Reversing valve failure Replace reversing valve Improper air delivery pipeline design installation or user operation causing reduced indoor air delivery amount Re design or re install air delivery path proper use of air conditioning unit by user 6 Poor or no heating in heating mode Phenomena Possible causes Correction method Poor or no Excessive heating load Check expected heating load heating M Re install amp ensure good heating Improper outdoor unit installation position M d ventilation mode Set temperature too low Increase set temperature Clogging in heating cycling system parts Again refrigerant or replace dirt clogged vacuum fill pump Clogged air strainer Clean strainer periodically Excessive dust accumulated on heat exchanger Clean by long hair brush or compressed air Small air flow in indoor heat exchanger Increase fan speed 99 Chunlan Troubleshooting Phenomena Possible causes Correction method Compressor failure Replace compressor Reversing valve failure Replace reversing valve Leaking refrigerant or shutoff valve not open clogging system Detect and repair leakage or open shutoff valve Insufficient or excessive refrigerant Add discharge refrigerant Poor thermal insulation of indoor un
11. 3 Purple HP pressure controller 4 Orange LP pressure controller 5 Black Phase sequence 1 6 White Phase sequence 2 7 Brown Overcurrent 58 Chunlan List of main parts amp wear parts Chapter VI List of main parts and wear parts 1 List of main parts and wear parts for FRD23 B FRD35 B and FRD50 B SC Size Model Symbol Description FRD23 B FRD35 B FRD50 B Main control PCBI FRD35 23 B FRD50 B board PCB2 Wire Ctrlr LCD PCB3 Remote Ctrlr Normal RF10A FG 000 05 model 3324 RT1 ID AT sensor 053324 RT2 ID PT sensor RF10A FG 000 05 model 3324 RT3 OD PT sensor RF10W FG 000 00JL 01WX model 3324 CBB61A 0 6 u FAC C1 Capacitor me CBB61A 1 5 u F AC 450V CBB61A 2 5 u F AC 450V Composite FRD23W 110 01 FRD35W 110 02 FRD50W 020 07 capacitor 25 1 5 u FAC 450V 30 1 5 u FAC 450V 50 2 5 u F AC 450V Comm line RF10W FG 000 01 OD PT probe FRD35 D 000 01 wire MC Compressor YZG 25RT1 YZG 39RCTI SHX33SC4 U MF2 OD fan motor FRD35W 100 00WX FRD50W 080 01WX Axial flow fan FRD35W 000 01WX FRD50W 000 05 M3 ID fan motor FRD23N 021 00WX FRD35N 041 00WX FRD50N 041 00WX Impeller FRD23N 070 05WX FR100N 070 04W X XT1 Wiring TB FRD35W 110 03 XT2 Wiring TB FRD35W 110 03 XT3 Wiring TB FRD35N 070 03 T Transformer Z371 YV Reversing VV DHF 2 STF 0101 STF 0202 DHF 3D STF 0202 EH PTC El heater MZFR
12. I Air flow static pressure performance curve 1 Air flow static pressure performance curve for FR D 71 B FR D 100 B FR D 95 and FR D 125 S ZEE Fan static pressure CTT aae su 0 1080 1440 1800 2160 2520 2880 2 Air flow statis pressure performance curve of FR D 180 S and FR D 260 S 300 250 T EEEN NA ERE 777 0 2160 2880 3600 4320 5040 5760 Fan static pressure 40 Circuit diagrams de Yi Chunlanx ircuit diagrams Chapter V C ircuit diagrams I WeIseIp joy 8 6 044 ELAY Tonu IO Y le O3juoo MITA Josuas oinjesoduiay odid 100pin ciy IouHogpsusBl ZAR Km Jojour uu JOOPUT 1oltopdeo rosuos om pi1odtuo edid zoopur poq poguos Wen 199d ong ea eA Sursioroy M Jd u9913 MOTSA U9913 MOJ 9A Ea uaa MOA eniq gea en q UMOIT UMO ZHOS MI Ua913 MOJ SA el S Su q P ond We JOSUIS ax omjeoduro Joopu y kom Eus Ty 8 omjeroduo H HR 3803 utn Joye IMAA Uuoo1d MOTIPA ma O yun 1oopu yun 1oopino Circuit diagrams de Yi Chunlanx mjg SUISIDADY 1O Ouu UR JOOP WeIBBIP mono g ODC AJEA N Y SA sera Jd uoal8 MAOT eA ZIN 49918 mono eng UooIS preog onuoo URBINA dack 1 onuoo Jowo J19 01UO9 JIM NIE 782d
13. O When the air conditioner is in OFF status you can select timed turn on Before such turn on press timing key to display remaining time in the display window this display will vanish after 5s When this timing expires the air conditioner will operate in set mode and timing status automatically changes to normal operation O Time setting is 01 24h Initial value is 01 interval is 1h and this setting will increase 1h every time the timing key is pressed Holding down this key will cycle this setting to 24h and then to 01h again Co a gt Temperature setting keys O A temperature increase key and a temperature decrease key are provided Press the former to increase temperature by 1 degree and press the latter to decrease temperature by 1 degree O Temperature setting range is 12 C 30 C When temperature display is 12 C temperature decrease key is not functional and when temperature display is 30 C temperature increase key is not functional 2 LCD wire controller r LCD display gu A e OFF Jd Ke Remote control reception window pl Ge COOL Functional key Air speed setting key Power ON OFF key Temperature setting key Temperature setting key 90 Chunlan a Method of operation 5 Power ON OFF key O Turn on main unit power the LCD only displays clock and the unit is in stop status Q Press power ON OFF key the unit is in ventilating status at high air speed and 22 C At this time use fun
14. aem qmd J m jw D un Pr IN IN T E mug ms e L sain hi Bi Bi eu No Poy pew i pel m TIE M X X Josuos Smgg41oduro edid 100pmoO Josuos onjeJoduiog E i wunioopmO p y UIRISBIP PNM S 2 Sc IS edid zoopur yun JOOpU JoJ O guoo Jou Jo O HuO9 SIEM JOSUOS oimyeroduisy uoiqui JOOpUT 48 Circuit diagrams de Yi Chunlanx werderp 31n2112 SOYA SNJ VOT MA SIM quic e st X JON YOUMS 1I omg OL ZHOG MIZ 3d dd FEMME Sat dd US913 MOI SA Jd U9SIS MO 9A y UueoJS MOI 9A Josso1duio zN Ve Ped xiroeray 1ounogsue1 Je o nuoo Jowo Iojouir UB J 8 UooIS ES ad J pea Te GR rak eng N Joyropdueo y ue IAA Tossardurog 7 Id ONUOS ITAA W a amm AAO TIN S p Ti NO NO SAJLA SUISIDADY M ma NH de HO N N9 NO IX 8E Josu s omme Toduroj edid 100pm Eo losuos o1nje1oduraj B a 89 es i EL jusrquie JOOpur Bro D MES nn ep n 3 TET TESI Wl g yun Joopuy 5 49 Circuit diagrams de Yi Chunlanx wure1gerp JODIO S STI U esng VOT AA M ZUIGT STX OJON 9ION YOUMS Ie ome OL ZHOG NE A08 du 3d ae oe E y id U9913 MOT SA UdeI3 MOTJOR X _ MOT2A X Ud0IB MOTIOA af aaen E dd lojroedeo moea X N So Jossoiduroo 7 zJ ES ND JOTUIOFSUBT
15. poor cooling heating ID or OD unit air intake i R tacl efficiency or not clogged emove obstacles cooling or heating Improper temp control setting Reset temperature control Open door window Close doors windows 95 VA Chun I an a Troubleshooting Failure Causes Correction measures Direct sunshine ID in cooling Use window curtain for shading Heat sources in room Reduce heat sources Notify appointed maintenance Molten fuse in operation Line short circuit dept Reconnect power and start Failed controller Microprocessor interfered machine RC batteries old or not properly Replace batteries and correct Not receiving RC signal 8 E installed installation Bad contact between wire Properly connect cables between Failed communication controller and main board them If the failure is still not cleared turn off air conditioner cut off power and contact appointed maintenance department Do not repair the air conditioner on yourself Note This unit features innovative and unique program design capable of automatic control o number of operating outdoor fans and motor speed according to change of outdoor ambient temperature etc to obtain optimum system load configuration D Unit system and structure troubleshooting 1 Neither indoor unit nor outdoor unit operating Phenomena Poss
16. FR95 C and FR125 C S and high static pressure series FR D 95 FR D 180 S FR D 125 S and FR D 260 S These models have similar but different features and applications card type low static pressure models adopt extra low noise design and are suitable for homes offices and other small areas low and medium static pressure air duct air conditioners have low noise and relatively low exhaust air static pressure hence suitable for houses villa and other sites with shorter air delivery distance and high noise requirement high static pressure air duct air conditioners have relatively high exhaust air static pressure and noise hence suitable for supermarkets department stores concert and other sites requiring long air delivery distance and tolerating noise X Dealers and users shall reasonably select low medium or high static pressure air duct air conditioners according to characteristics of application sites In case an installer or designer is unaware of the relation between static pressure and noise level and fails to select proper model user may think that high static pressure air duct type air conditioner has low noise II Applicable areas of various models of air duct type air conditioners based on 3m ceiling height FR71 B FR100 B FR95 C FR125 C S FR180 S FR260 S FR23 B FR35 B FR50 B FRD71 B FRD100 B FRD95 FRD125 S FRDISO SIFRD260 S 16 25 25 38 35 55 N 120 140 170 200
17. operation after re powerup displays only put it to circuit powerup Check for broken wire or short circuit of sensor Check for reliable welding at main control board CN6 and wire controller CNI needle seat reliable connection of corresponding cards and broken wire or short circuit of communication line In case of communication failure Check for DC12V input at wire controller DC5V t DH main SEHR board andjoutput at ges control board 7805 3 pin and failure wire controller wire controller DC5V at wire controller RG1 3 Check for normal voltage at main control board 2003 driving block Check for normal voltage at crystal oscillator pin of main control board and wire controller Check for normal input output voltages of main control board and wire controller 103 VA Chun l an a Troubleshooting Failure Phenomena Failure analysis Check for correct compressor power phase sequence Check for protection action in compressor Check for phase absence in compressor power Wire controller displays E6 only line Phase sequence I i ut it to operation after re Check for damaged compressor absence protection powerup Check for damaged triode on main control board Check for damaged LM339N on outdoor board Check for bad connection of ID OD connecting cable Check for damaged OD board current transformer Check if 8HP compressor current exceeds 18A Check if 10HP compressor current exce
18. snow shelter shall be used and lowest point of such shade shelter shall not be lower than required in the figure below Avoid low place where water can accumulate 4 A location where piping of indoor and outdoor units and power cables can be easily arranged to facilitate installation and maintenance shall be selected 5 A location where ventilation is near indoor unit shall be selected and avoid extension of pipeline 6 Avoid inflammables explosives or leakage of these 7 Avoid corrosive gas dust salty mist and other pollutants 8 Refer to the following figure for space required for installation of outdoor unit 22 5 Y Chun I an x Installation MALE INALRIGELEE K Obstacle or wall arma gt 100 U i DI gt 500 gt Maintenance space gt 100 Inl Inl Space normally required by installation of outdoor unit based on FR D 125 S A Z ZZ Z Z Z7 f gt 300mm gt 2000mm Y i di i C gt 300 500mm Y Y f o gt lt i Y L gt 300mm 9 Y ey gt u Z ZZ 7 ZZ ZZ ZZ Z ZZ ZZ A Space required for FR D 260 S outdoor unit installation 2 Installation of outdoor unit 1 To avoid center of gravity offset and protect compressor never tilt the machine by more than 45 degrees during transportation 2 Use M12 bolts to fix machine chassis Fixing shall be firm and reliable and damping measures sh
19. 850W FRD35N 080 00 FRD50N 080 00WX K Smallrelay JQX 116F 2 220AL 2HS FT l time fuse 139 C 15A 139 C 15A 139 C 15A KT Temp relay KSD A 125 C 10A KSD A 125 C 10A KSD A 125 C 10A Liquid valve FRD23W 000 03WX FRD35W 000 06WX FRD50W 040 04WX FRD50W 063 01WX Steam valve FRD23W 000 04WX FRD35W 000 08WX 59 Chunlan List of main parts amp wear parts 2 List of main parts and wear parts of FR D 71 B and FR D 100 B Symbol Description ao FR D 71 B FR D 100 B PCB1 Mam control board pe fer PCB2 Wire controller to heee PCB3 Remote controller r Keen RTI Temperature sensor 3324 3324 RT2 Temperature sensor 3324 3324 RT3 Temperature sensor 3324 3324 Indoor fan capacitance Cl Cl 3 u Cl Capacitor 2 5 u F AC 450V F AC 450V Cl Capacitor 3uF AC450V C3 C3 Composite capacitor 35 3 u F AC 450V Startup capacitance 60 u F AC 450V C4 Startup capacitor 100 u F AC 450V Parallel capacitance 50 u F AC 450V PV Pressure switch YK 3 1 225 peer MI Outdoor fan motor YDKs120 30 6 YDK 120 45 6 C2 Capacitor Ken Startup capacitance 6 u F AC 450V M2 Compressor Q2 2 ZRA7K3 PFJ M M Indoor fan motor YDK110 30 4 Y DK5110 30 4 FU Indoor fuse 5A 10A FU Outdoor fuse DA nes YV Reversing solenoid valve DHF 6 STF 0408 KM AC contactor BTF34 BTF3100 single phase EH Heating band BOW e 3 List of special main parts amp wear parts of FRD71 B a
20. Blue Yellow gr en PERO a ARAM SS E gt a n E y m e In d Indoorunit Outdoorunit ACcentaetor Red di 5 Indoor pipe ii un Sr lem peraturesensor Compressor PEN E White t Whit EA Toautouirswitch Ze Fan motor E are PE E V hit Fancapacitor k Fan noto Do Outdoorpiperemperatureseacor Cp m Y GER Reversing valve CH S L EA alla a Blue DN Le verow green E High pressureswitch Circuit diagrams de V Chunlan amp wrerderp 1moso S 08 CRI yeos ett Sula LX OPRU OV Nd esng eum 0 L4 510320301d BULIOU 49891 ong 9 TY HWA 910919 Dd 9 L HS NON odid 100pmo YOUMS IFE ope om ZHOGaNE POT pon M I usu SE uoa MO PA ple A Le T nm Sd Li rj L di Steg EEN I I ana i N M H zd SA EA SUISIBASY VS pim l JOULIOJSUEI MY DM PS 4 4 NO NI ana t osuos gt 2IMEI9dULO i T id i IW JOJOW up T vi Jopoedeo weg poy HUN IH N MOIN 1030U1 up 4 aopoedeo ued Po eh ba um 19 id LLI A _ j B d r 103001 Ue Y iosso1dup Lora Tons Tre opne OL zh a SE eege QM ne OE FV oi 4 pon i PY 1039209 OV a H 17 zu pun Zoop mo qc Jojour Ue np Ze
21. Case I A user installed a number of FR125 S air duct type air conditioners and complained about poor heating effect Pressure measurement showed that indoor unit and outdoor unit systems were normal without clogging or leakage and indoor area and thermal insulation met requirements Analysis 1 The indoor unit was installed in ceiling layer of toilet with ventilating windows Fresh air leaked into return air so that indoor unit return air temperature in winter was lower than 0 C 2 Insulation on air delivery hose and static pressure box was merely 5mm thick sticky sponge Solution 1 Fabricate fresh air duct plus air damper control and seal for insulation or block fresh air window and cancel fresh air duct 2 Increase air duct thermal insulation to above 15mm Case H A user installed more than 10 sets of FR125 S air duct air conditioners and complained of poor heating effect For this reason user installed auxiliary electric heating of sufficient power so that indoor air delivery temperature was as high as 52 C However even at high air speed setting air delivery was very small and room temperature was low Analysis 1 Space surrounding indoor unit was small and natural return air was used Distance between unit return air face to obstacle was only 5cm and return air was seriously blocked 2 Air delivery main hose was only 0 8m long i e a branch hose leading 2 lines of right angle bends This branch hose was 20cm diameter roun
22. Chunlan Troubleshooting Under following conditions program controlled electric system will automatically detect failure Wire controller will display failure codes Failure Failure phenomena Failure analysis 3 occurrences of anti freeze When 3 consecutive such protection signals are detected in lh AC unit stops wire controller Check for normal cooling system check for bad contact at ID pipe temperature sensor connection check for broken wire or short circuit at sensor if rotection displays El you can i P pay y y normal check if R6 on indoor board is 10K only put it into operation after re powerup ID ambient Wire controller i f First check ID ambient temperature sensor connection temp probe displays E2 put it an MAP for bad contact check for broken wire or short circuit broken wire into operation after short circuit re powerup in sensor if normal check if R7 on ID board is 10K ID pipe temp probe broken wire short circuit Wire controller displays E3 put it into operation after re powerup First check ID pipe temperature sensor connection for bad contact check for broken wire or short circuit in sensor if normal check if R6 on ID board is 10K OD pipe temp Wire controller First check OD pipe temperature sensor connection b broken displ E4 put it a SE Ge Ge ed for bad contact check for broken wire or short circuit MP P In se
23. IOSU S S ITEN edid 1oopu Josuas onge1oduio JOOPUT uoo O d Josse1duio jun JOOPINO JALI pue Y e o1 ounge1oduio ANON SU osng oum T yun Joopug H HF lojeou oujoo q B circuit diagram FRD50 42 Circuit diagrams de Yi Chunlanx pop yoo g sj J osn amp q parddns aq peys JOOpNO JOOpUL S3 QEO Surjoeuuoo Jomod pue so qeo mod usag MOTOA ZHOS AOZZ U9913 MOJJSA UMO Josso1duio tN 3 UMOJE oe aam oft JOJO ue JOOPMO yeas hl Tea SUM d Jd Y JOWIOJSUBIT yeas Irma sua OUO UIEN ld 1osuos oinjesroduray edid 100puy ly Josuos ounje1oduioj quarque 1oopu Josuas ommje1oduieg adid ioopinO ty nm EI ES dolls e1nsseq Ad nun 1o00pino FR71 B circuit diagram 43 Circuit diagrams de V Chunlan ure1oerp jog G qy4 UooIS AO OX Jd uo0 3 MOTJoA ZHOS AOZZ 1osserdwo5 JAOTA N e 1 UMOIE JOJOU UB JOOPINE u r die Avjos omedodwor 19189H peu AOI pews pow p I H Di yeas BUTUITS Suum b x Jo rogdez Joyoede o m ABA SN EN ENJ MA PND NJ p1 0q Jonuoo wen tfd EIN 6N N OIN osn oumm X 1055 eururog Sum peral E Se Josues o1myeso
24. Remove 7 6 11 Remove 20 12 Remove 21 4 13 Remove 5 14 Remove 3 1 15 Remove 2 Annex Dismantling sequence of typical parts Indoor capacitor 1 Remove 12 2 Remove capacitor Indoors motor 1 Remove fan section rear plate 12 2 Remove fan section top plate 11 3 Remove spiral casing 13 and impeller 9 4 Remove connecting plug from control board in electric box 5 Remove motor 10 and capacitor Note Return air box of FRD23 B FRD35 B or FRD50 B indoor unit is optional There are two modes of air return lower air return and rear air return and two modes of water discharge left and right This exploded view and dismantling sequence is based on lower air return and left water discharge Chunlan a Exploded view amp dismantling sequence of parts II Exploded view and dismantling sequence for outdoor unit of FRD23 B FRD35 B amp FRD50 B 1 Exploded view of outdoor unit of FRD23 B FRD35 B and FRD50 B ASS ANNAN D D T H 7 Outdoor unit Exploded view of outdoor unit of FRD23 B FRD35 B and FRD50 B Yi Chunlan Exploded view amp dismantling sequence of parts 2 Exploded view schedule of outdoor unit of FRD23 B FRD35 B and FRD50 B Description Remark Front plate assembly Small shutoff valve Large shutoff valve Compressor Axial flow fan
25. air conditioner it is necessary to wait at least 3min before restart or change of operating mode so as to protect compressor c In normal operating status of air conditioner shutdown the machine by power ON OFF key 92 Chunlan Method of operation Never shutdown the machine by unplugging power cord 2 Cooling Prep Turn on power Press ON OFF key to start Turn Use func n key to select cooling Notes a When cooling is selected temperature shall be set lower than current indoor temperature otherwise the unit will be in ventilating mode b If ambient is too high cooling load will be too high so that set temperature won t be met c For your health and power saving proposed set room temperature is 25 C 30 C Notes a When heating is selected set temperature shall be higher than current room temperature otherwise the unit won t work b To prevent cold air at startup indoor unit will operate later than outdoor unit c During heating the computer will control the unit for auto defrosting during which no fan will operate and the compressor will operate and after which heating will start Connect power Press power ON OFF key Use F key to select ventilating Use AS key to select air speed on Use AS key to air speed Use temp key to set room temp Off Press power ON OFF key 3 Heating Prep Connect power supply Pr
26. and use sagging sponge inside for noise reduction 4 Use cotton felt for noise reduction of indoor unit Note 1 For relevant models and parameters provided in this manual actual products and nameplate information shall govern 2 This manual has been carefully checked In case of printing error our company shall not bear responsibility for the consequences 3 Our company is in constant technology advancement and product series and sizes will be adjusted from time to time Please note information of our new products 113
27. circuit 7042 on main control board Check for normal remote control receiver Check for normal remote control transmitter Check for normal remote controller Check for normal 3V batteries Check crystal oscillator circuit Check for normal transmitter Check for displaced or bad contact in conducting rubber Check for normal temperature sensor RTI Check for normal DC12V DC5V power supply Check for reliable connection of output ports of compressor ID OD fans Check for main control board damage Check for normal temperature sensor RT1 Check for normal DC12V DCSV power supply Check for reliable output port connection of compressor reversing valve ID fans and OD fans Check for main control board damage Check for intact connection of outdoor unit wiring terminals 19 pin output on main control board MCU chip shall be high level relay RL1 shall close by suction Check for intact reversing valve Check for intact connection of indoor unit wiring terminal and damage Indoor fan failure of main control board 107 VA Chun I an a Troubleshooting Method of correction Check for intact indoor fans Check for intact fan capacitors Check for intact connection of outdoor unit wiring terminal Check for damaged main control board Outdoor fan failure Check for intact outdoor fans Check for intact fan capacitor 108 Yi Chunlan a Typical case analysis Chapter XIII Typical case analysis
28. installation Air duct design and noise reduction methods are described below Design air duct and air port air speed according to state codes and standards Product installation and operation manual and Chunlan design code for home commercial centralized air conditioning system Data in following tables can be referenced for design These data may have slight deviations that do not affect functioning as design reference Table 1 Air speed in low speed air duct m s Permitted indoor noise dB Main duct air Branch duct air Fresh air entrance m s speed speed 25 35 3 4 lt 2 3 35 50 4 7 2 3 3 5 50 65 6 9 2 5 4 4 5 65 85 8 12 5 8 5 Table 2 Max air delivery speed at lateral delivery louver port m s Building Max air delivery speed Building Max air delivery speed Studio 1 5 2 5 Personal office 2 5 5 0 Residence 2 5 3 8 Personal office no sound insulation 4 0 6 3 Hotel room 2 5 3 8 Ordinary office 2 5 3 8 Theatre 2 5 3 8 Cinema 2 5 3 8 Hall 2 5 3 8 Department store 49 83 V Chunlan Air duct design amp noise reduction Table 3 Maximum air delivery speed of diffuser m s Permitted noise Net indoor height m Building dB A 3 4 5 6 7 Broadcasting 32 39 42 43 44 4 5 Theatre residence operation room 33 39 44 46 48 5 0 5 2 Hotel personal office 40 46
29. m m m 50 60 m 70 80 m 70 80 m 80 100 m m m Notes D Office 90 140W m 2 Restaurant amp bar 200 350W m Shop 150 250W nr 4 Recreation 200 350W m In case careful calculation of air conditioning loads is not carried out according to detailed cooling heating load calculation method or rough calculation method specified in Air conditioning design manual and Centralized air conditioning standard etc in combination with application site information so that 5HP model is selected where 4HP or even 3HP shall be used higher noise will occur due to small space and short delivery distance Solution Carefully calculate cooling heating loads according to Air conditioning design manual and Centralized air conditioning standard etc and select proper model Certain margin shall be left in type selection otherwise user may complain of bad cooling or heating effect In case heating effect must be ensured at low temperature models with auxiliary electric heating are preferred 65 Y Chunlan x Installation Chapter VIII Installation Installation of air duct type air conditioners must be carried out by qualified personnel I Installation schematic llis nn nl E g iw Z SE lt U E 1 Outdoor unit 2 Indoor unit 3 Air exhaust grating 4 Air return grating 5 Wire controller 6 Connecting pipeline Low static pressure air duct air conditioner installatio
30. machine 1 Auxiliary electric heater installation dimensions O Refer to the following figure and table for installation dimensions of FRD95 FRD125 S FRD180 S and FRD260 S auxiliary electric heater Model Code FRD95 FRD180 S FRD125 S FRD260 S a 300 330 2 Installation of auxiliary electric heater O Put the side of auxiliary electric heater with label Connect this end to indoor unit air exhaust for installation on indoor unit air exhaust port and fix with 8 STAX 12 tapping screws O Fix the heater on foundation and stick insulation material on its outer surface and interface s1 Y Chun I an x Installation FR D 95 FR D 125 S FR D 180 S FR D 260 S Notes 1 2 aux electric heaters shall be provided for each FRD180 S or FRD260 S 2 After installing the heaters fit insulation material to avoid thermal dissipation and water leakage caused by condensing on outer surfaces III Installation of outdoor unit 1 Selection of installation position 1 Installation base on which outdoor unit can be fixed and that can withstand 3 times the weight of this unit shall be selected 2 A location where outdoor unit air intake exhaust flow will not be interfered shall be selected 3 A location away from direct sunshine rain and other direct radiating heat source shall be selected If not effective sunshade or rain
31. of air duct air conditioners we will not supply power plug and user must adopt special power lines 5 Units with auxiliary electric heating must connect an electric heating power cable on the electric box YZ3X1 5 1X1 cable for FRD125 S RVV3X2 5 sheathed cable for FRD95 2 YZ3X1 5 1X1 cables for FRD180 and 2 YZ3X1 5 1X1 cables for FRD260 to wiring terminal seat on electric heating box in a corresponding manner connect earthing line hold tight with wire clamp and fix cover plate on the seat Only turn on machine with wires connected otherwise short circuit can occur Notes 1 For FR D 125 S FR D 180 S and FR D 260 S check for correct rotation direction of compressor before system installation and operation Compared with normal operation reverse compressor rotation can cause high noise and small current FR D 180 S and FR D 260 S wire controller will indicate E6 confirm no absent phase for reverse compressor rotation Shutoff the unit at once disconnect power and swap 2 any phases 2 Indoor outdoor connecting cable must be sheathed cable meeting state standards Signal lines shall be gt 1mm sheathed cable FR95 FR95 C power cable shall be gt 2 5mm cable with yellow green earthing line indoor outdoor power connecting cable shall be 2 5 mm cable with yellow green earthing line FRD95 power cable shall be gt 6mm cable with yellow green earthing line indoor outdoor power connecting cable shall be 72 5 mm
32. part 5 3 Remove side frame assembly 3 4 Remove PTC electric heating wire x02 Yi Chunlan a Exploded view amp dismantling sequence of parts VIII Exploded view and dismantling sequence of outdoor unit of FR D 95 FR D 125 S FR D 100 B FR95 C and FR125 C S 1 Exploded view of outdoor unit of FR D 95 FR D 125 S FR D 100 B FR95 C amp FR125 C S FR D 1 25 S Outdoor unit FR D 100 B FR95 C FR D 95 Exploded view of outdoor unit of FR D 95 FR D 100 B FR D 125 S FR95 C FR125 C S example of FR D 95 Bis V Chunlan Exploded view amp dismantling sequence of parts 2 Exploded view schedule of outdoor unit of FR D 95 FR D 125 S FR D 100 B FR95 C amp FR125 C S No Description Remark 1 Top cover assembly Air intake mesh assembly Right panel assembly Condenser Capillary assembly T pipe assembly Valve Dg8 Oo 0 IN JA tn A IN Motor support Flat washer 5 11 Spring washer 5 12 Motor 13 Nut M5 14 Axial flow fan 15 Front panel assembly 16 Handle 17 Electric assembly 18 Baffle plate assembly 19 Air exhaust pipe 20 Reversing valve assembly 21 Pipe 2 22 Pipe 1 23 Air suction pipe 24 Compressor junction box cover 25 Dg13 FR D 95 FR125 C S FR95 C FR D 100 B Dgl6 FR D 125 S 26 Compressor
33. silencers has good performance for low and medium frequency noise c Combined resistive and reactive silencer wide frequency band silencer This type of silencer integrates advantages of above types and has good performance at low medium and high frequencies Reduction of noise at low frequencies and some medium frequencies makes use of reactive silencing by sudden change of pipeline cross sectional area and resonance sound absorption by cavity Reduction of noise at high frequencies and most medium frequencies makes use of sound absorbing materials 85 Yi Chunlan a Air duct design amp noise reduction II Existing problems in air duct noise control and measures of solution Main equipment Problem 1 Too large size of unit selected Careful air conditioning load is not carried out according to cooling heating load detailed calculation method or rough calculation method specified in relevant standard or book or in combination with application site information For instance SHP unit is selected where 4HP or 3HP should have been selected This will cause higher noise due to limited space if air conditioning and small distance between indoor unit and conditioned space Solution By referencing relevant standard book or experience carefully calculate air conditioning cooling heating load and select correct type Problem 2 Improper installation Proper installation position is not selected according to installation key poi
34. 128 35 4 IY DK 3128 35 4 XTI Wiring terminal seat JX W 2P JX W 2P XT2 Wiring terminal seat JX W 05 JX W 05 XT3 Wiring terminal seat JXO AB 600V 60A PBT660VAC 6mm 4 place 63 Chunlan List of main parts amp wear parts Size Model Symbol Description FR D 180 S FR D 260 S T Transformer Z37 a FU Fuse 10A 10A FU3 Fuse AC3802A p YV Reversing solenoid valve STF 0408 STF 0714 KM IAC contactor BTF34 BTF34 Valve Dein bee Valve Dgl9 bee Axial flow fan RF180W S 000 0WX rF Impeller RF10A FG 062 00 ss te 8 List of special main parts wear parts for FRD180 S amp FRD260 S aux electric heating Size Model Symbol Description FRD180 s FRD260 S PCBI Main control board cr pr FT123456 1 time fuse 153 C 10A 153 C 10A IKT 123 456 Auto reset thermal protector KSD A135 C 10A KSD A135 C 10A EHi23456 PTC heater MZFR 1KW MZFR 1 5KW XTI Wiring terminal JXO AB 600V 60A JXO AB 600V 60A GTA Wiring terminal JIXW Z 11 03 JIXW Z 11 03 XT5 Wiring terminal JXW Z11 03 JXW Z11 03 KMI IAC contactor 3TF3000 3TF3200 64 Chunlan Type selection Chapter VII Type selection I Application scope Air duct type air conditioners of our company include card type low static pressure series FRD23 B FRD35 B and FRD50 B low static pressure series FR D 71 B and FR D 100 B medium static pressure series
35. 180 S and FR D 260 S Model FR180 S FRD180 S FR260 S FRD260 S Cooling capacity 18000W 26000W Heating capacity 20000W 20000 6000 W 28000W 28000 9000 W 380V 3N 50Hz 380V 3N 50Hz Operating voltage range 342 418V Rated input Cooling 6500W 11000W power Heating 6200W 6200 6000 W 9500W 9500 9000 W Rated input Cooling ILSA 18 94 current Heating 11A 11 9 A 16 44 16 4 13 6 A Air circulation indoor U 3700m gt h 4600m h Exhaust air static pressure 76Pa 127Pa Indoor unit noise 63dB A 66dB A Outdoor unit noise 65dB A 68dB A R22 filling amount 5 8Kg 11 5Kg Climate type Tl Remote control Yes Indoor unit 65Kg 85Kg Mass 46 62 Outdoor unit 150Kg 190Kg Size of ID OD connecting pipe user supplied Liquid pipe o 12x1 Liquid pipe 16x1 Steam pipe 6 22x1 5 Steam pipe 28x1 5 Connecting nut LP M18x1 SP M30x2 LP M22x1 5 SP M36x2 Outline Ind unit mm 1309x618x400mm 1800x618x400mm WxDxH OD unit mm 950x392x1160mm 1450x750x964mm Notes 1 Length of connecting pipe for test 7 5m 2 Operating environment T Cooling 15 C lt T lt 32 C indoor 18 C lt T lt 43 C outdoor Heating 12 C lt T lt 27 indoor 7C lt T lt 24 C outdoor 3 Value in is nominal value for auxiliary electric heating 39 Y Chunlan a Performance curve Chapter IV Performance curve
36. 2 sets 3 speed b Outdoor fans 2 c Compressor d Reversing valve sets 1 speed B Troubleshooting Troubleshooting antifreeze protection 1 hour AC unit stops and wire controller displays El only put it to operation after re powerup Failure Phenomena Failure analysis HV switch shall be ON and card connection shall Wire controller displays EO only HV switc have good contact put it to operation after re protection Check for bad contact at indoor outdoor powerup connecting cable card When 3 consecutive antifreeze protection signals are received in Check for normal cooling system 3 occurrences o Check for drifting of indoor pipe temperature sensor resistance ID probe short circuit ambient temp broken wire Wire controller displays E2 only put it to operation after re powerup First check for bad contact in indoor ambient temperature sensor connection Check for broken wire or short circuit of sensor ID pipe temp probe broken wire short circuit Wire controller displays E3 only put it to operation after re powerup First check for bad contact in indoor pipe temperature sensor connection Check for broken wire or short circuit of sensor OD pipe temp probe broken wire short Wire controller displays E4 only put it to operation after re First check for bad contact in outdoor pipe temperature sensor connection ES
37. 23 25 6 Remove 33 32 respectively 433 Chunlan Main technical parameters Chapter III Main technical parameters I Main technical parameters of FRD23 B FRD35 B and FRD50 B Model FRD23 B FRD35 B FRD50 B s cooling capacity 2300 3500 5000 ES heating capacity 300850 3500 1200 5000 1500 Power supply 220V 50Hz Rated input Cooling W A 890 4 1 1340 6 2 1950 8 9 Power Curr Heating W A 790 850y3 6 4 0 1320 1200 6 0 5 5 1850 1500 8 4 6 8 Air flow indoor unit m h 420 600 800 Static exhaust air pressure Pa 20 us Indoor unit kg 24 23 3 28 Outdoor unit kg 28 35 52 Indoor unit dB A lt 38 lt 44 lt 48 Noise Outdoor unit dB A lt 50 lt 52 lt 56 Refrigerant kg R22 0 71 R22 1 24 R22 1 6 Connecting Liquid pipe mm 6 Pipe siz Airpipe mm o 10 o 12 Air exhaust size mm 128 X 722 128 X 922 Return air port size mm 170 X 680 170 X 880 Fresh air port size mm 100 X 100 Outline Indoor unit mm 888 X 466 X 234 1088 X 466 X 234 LXWXH Outdoor unit mm 650 X 250X551 800 X 252 X 646 Notes 1 Experimental conditions 1 Length of connecting pipe for test 5m 2 Refrigeration conditions normal indoor dry bulb 27 C wet bulb 19 C Outdoor dry bulb 35 C wet bulb 24 C 3 Heating conditions normal indoor dry bulb 20 C wet bulb 15 C outdoor dry bulb 7 C wet bulb 6 C 4 Static pressure is 20Pa 2 Op
38. 30 10 10 220V 3TF3 100 EB 16 30 00 230V Valve Dg8 Dg Valve IDg13 Dgl6 Axial flow fan RF10W FG 000 04WX IRF10W FG 000 04WX Impeller IRF10A FG 062 00 RF12A FG 032 00 62 Chunlan List of main parts amp wear parts 6 List of special main parts wear parts for FRD95 amp FRD125 S aux electric heating Size Model Symbol Description FRD95 FRD125 S PCBI Main control board sis FTi23456 l time fuse 153 C 10A 153 C 10A KT1 2304556 _ Auto reset thermal protector KSD A135 C 10A KSD A135 C 10A EH 23456 PTC heater MZFR 1 5KW MZFR 1 5KW XTI Wiring terminal JXO AB 600V 60A JXO AB 600V 60A XT4 Wiring terminal ee fe XT5 Wiring terminal JXW Z11 02 JXW Z11 03 KMI AC contactor pr 3TF3000 K Small relay JQX 116F Z 220AL 2HS 7 List of main parts wear parts of FR180 S and FR260 S Size Model Symbol Description FR D 180 S FR D 260 S PCBI Main control board 7 per PCB2 Wire controller p 0 0 Keen PCB3 Remote controller F Keen RTI Temperature sensor 3324 3324 RT2 Temperature sensor 3324 3324 RT3 Temperature sensor 3324 3324 C1 C2 Capacitor CBB611A 6 u F AC 450V CBB65A 1 10 u F AC 450V C C Capacitor CBB60F 10 u F AC 450V CBB65A 1 15 u F AC 450V Communication line IRFIOAW FG 000 01 pe M3 M4 Outdoor fan motor Y DK s 6 120 45 6 YDK145 60 8 M2 Compressor ZR81KC TFD 522 ZRI25KC TFD 522 M Mi Indoor fan motor Y DK gt
39. 52 54 57 5 9 6 1 Shop bank restaurant department store 41 53 6 2 6 6 7 0 7 2 7 4 Public building office department store 54 60 za 79 83 187189 bottom floor Table 4 Max air delivery speed at orifice strip seam and spout m s Max air delivery Air port Remark speed Orifice 3 3 Upper limit is preferred for high even delivery requirement Seam port 2 4 or hot air for high installed position of port or higher air Spout 4 10 speed is allowed in area of personnel activities Table 5 Air suction speed at return air port m s Position of return air port Air suction speed Room upper part 4 5 Room lower part Near points of stay of personnel 1 5 2 Table 6 Recommended criteria for indoor noise control referencing High building air conditioning design published by China Architectural Industry Publishing House g gn p M y Type of room Noise level Grade I 30 Guest room Grade II 35 Grade III 40 Grade IV 55 Restaurant Grade I 35 Banquet hall Grade II 40 Itifunction hall Grade III 45 ia Grade IV 55 84 Yi Chunlan a Air duct design amp noise reduction Type of room Noise level Grade I 45 Commercial Grade II 45 Service Grade III 55 Grade IV 55 Vestibule Ge e Seasons hall Ge b Grade III 45 Hairdressing Barber s room 45 Recreation facilit
40. A 10A YV Reversing solenoid valve STF 0408 STF 0408 EB16 30 00 230V KM AC contactor B30 10 10 220V or 3TF3100 220V 3TF3 100 Valve Dg8 Dg8 Valve Dg13 elo Axial flow fan RF10W FG 000 04WX RF10W FG 000 04WX Impeller FR95 CN 062 00 FR95 CN 062 00 61 W Chunlan 5 List of main parts wear parts of FR D 95 and FR D 125 S List of main parts amp wear parts Size Model Symbol Description FR D 95 FR D 125 S PCB1 Mam control board F be PCB2 Wire controller tee oZ kon PCB3 Remote controller r o kon RTI Temperature sensor 3324 3324 RT2 Temperature sensor 3324 3324 RT3 Temperature sensor 3324 3324 Cl Capacitor CBB60F 10 u F AC 450V CBB65A 1 15 u F AC 450V C2 Capacitor CBB611A 6 y F AC 450V CBB611A 8 u F AC 450V C3 JCapacitor CBB65A 60u F AC 450V C4 JCapacitor CBB65A 1K 50 u F AC450V_ b Communication line RF10AW FG 000 01 RFI0AW FG 000 01 OD pipe temp probe line RF10AW FG 000 02 RFIOAW FG 000 02 M1 Outdoor fan motor YDK3120 45 6 YDK gt 120 45 6 M2 Compressor IZR47K3 PFJ ZR61KC TFD M3 Indoor fan motor YDK128 35 4 YDK128 45 4 XT1 Wiring terminal seat JXW 2P JXW 4P XT2 Wiring terminal seat JXW 05 JXW 05 XT3 Wiring terminal seat JXO 07 JXO 09 T Transformer Z371 Z371 FU Fuse 10A 10A YV Reversing solenoid valve STF 0408 STF 0408 KM AC contactor IB
41. C lt T lt 24 C outdoor 135 VA C hu n I an a Main technical parameters 3 Value in __ is nominal value for auxiliary electric heating 36 Chunlan III Main technical parameters of FR95 C and FR125 C S Main technical parameters Model FR95 C FR125 C S Cooling capacity 9500W 12500W Heating capacity 11000W 15000W Power supply 220V 50Hz 380V 3N 50Hz Cooling 3700W 4600W Rated input power Heating 3500W 4200W Cooling 18 1A 8 1A Rated input current Heating 17 2A TAA Air circulation indoor unit 2000m h 2200m h Exhaust air static pressure 50Pa 50Pa Indoor unit noise 52dB A 54dB A Outdoor unit noise 62dB A 64dB A R22 filling amount 2 95Kg 3 2Kg Climate type Tl Remote control Yes Indoor unit 47Kg 52Kg Mass Outdoor unit 85Kg 95Kg Size of ID OD connecting pipe user supplied Liquid pipe d 10x1 Liquid pipe 6 10x1 Steam pipe 16x1 Steam pipe 19x1 5 Connecting nut LP M16x1 5m SP M22x1 5 LP M16x1 5 SP M27x2 Outline Indoor unit mm 1150x750x285mm 1150x750x285mm WxDxH Outdoor unit 950x360x853mm 950x360x853mm Notes 1 Length of connecting pipe for test 7 5m 2 Operating environment T Cooling 15 C lt T lt 32 C indoor 18 C lt T lt 43 C outdoor Heating 12 C lt T lt 27 C indoor 7C lt T lt 24 C outdoor 2375 Chunlan IV Main technical parameters o
42. Exploded views dismantling sequence of parts I Exploded view amp dismantling sequence of indoor unit of FRD23 B FRD35 B and FRD50 B 1 Exploded view of FRD23 B FRD35 B and FRD50 B indoor unit 12 11 Exploded view of indoor unit of FRD23 B FRD35 B amp FRD50 B ads 4 Chunlan a Exploded view amp dismantling sequence of parts 2 Exploded view schedule for FRD23 B FRD35 B and FRD50 B in door unit No Description Remark 1__ Air exhaust strip 2 Water tray assembly 3 Water accumulation plate 4 Right side plate assembly 5 _ Heat exchanger assembly 6 PTC electric heater 7 Heat exchange section top plate assembly 8 __ Fan section left side plate assembly Optional 9 _ Impeller 10 Motor 11 Fan section top plate Optional 12 Fan section rear plate assembly Optional 13 Spiral casing 14 Fan section right side plate assembly Optional 15 Fan mounting plate 16 Fan section bottom plate Optional 17 Electric box mounting plate 18 Electric box 19 Electric box fixing block 20 Heat exchanger protection plate 21 Left side plate assembly Yi Chunlan a Exploded view amp dismantling sequence of parts 3 Dismantling sequence of indoor unit of FRD23 B FRD35 B and FRD50 B 1 Remove 18 2 Remove 17 19 3 Remove 12 4 Remove 11 5 Remove 16 6 Remove 14 8 7 Remove 9 13 8 Remove 10 9 Remove 15 10
43. If FR D 71 B FR D 100 B connecting pipe length exceeds 8m add 30g m refrigerant and 10g m frozen oil 5 If FR D 95 FR D 125 S FR95 C FR125 C S connecting pipe length exceeds 8m add 30g m refrigerant and 10g m frozen oil 6 If FR D 180 S connecting pipe length exceeds 8m add 80g m refrigerant 7 Amount of refrigerant filled inside FR260 S is for 5m connecting pipe For extended length of connecting pipe add 170g m refrigerant Notes 1 Use T valve filling port to add refrigerant 2 Add refrigerant during cooling operation 3 Do not directly pour liquid refrigerant 4 Model of frozen oil Sontex200LT white oil or 3GS oil 7 Electric wiring 1 Electric wiring shall be carried out by electricians with qualification certificates State electric wiring code shall be followed 2 Electric box must be fixed on indoor unit casing earthing must be reliable 81 Sa Chun I an x Installation 3 According to requirements by electric wiring diagram connect wire controller to indoor electric box Connect indoor outdoor connecting cable and outdoor pipe temperature probe connecting cable to outdoor electric box Plugs shall be firmly and reliably in place and held tight by wire clamp 4 Special power supply cables must be used for the units For FRD23 B 250V 10A power plug shall be used 250V 15A plug for FRD35 B and 250V 25A for FRD50 B User must select sockets corresponding to these plugs For other models
44. R95 C and FR125 C S based on upper return air 41 O Determine positions of lifting hooks As shown above D 3 and are lifting hook installation positions for FR95 C and FR125 C S Suitable positions can be selected to needs Just select one out of and refers to the tapping screw to fix lifting hook on indoor unit O Use 4 M10 expansion bolts to fix lifting hook on bearing mounting face 2 Installation mode for other models based on FR180 S and FR260 S The following is an ideal installation mode WU WMV FP AAA AAA BAA AA AAA AAAA AAA AA ALA 10mm polythene foam 5x50 angle steels 2 BORA AAA AVA DELETES 2 VESTE Ke XJ oC X X X D 15mm wood plate i s E According to size of machine use 4 or 6 M10 bolts and associated nuts flat washers and spring washers to fix installation support on indoor unit mounting strip O According to size of machine use 4 or 6 MIO expansion bolts to fix the installation support on bearing mounting face 70 Y Chun I an x Installation O A damper block of the same size as the angle steel and thickness greater than 10mm shall be used on top of the angle steel to reduce vibration O The machine must have 2 slope in drainage connector direction 4 Installation of auxiliary electric heating This is limited to FRD95 FRD125 S FRD180 S and FRD260 S For FRD71 B and FRD100 B auxiliary electric heater is installed at exhaust air port inside the
45. Yi Chunlan x Structure amp Features Air duct Type Air Conditioner Service Manual JIANGSU CHUNLAN REFRIGERATING EQUIPMENT Co Ltd AUGUST 2004 Yi Chunlan a Structure amp Features Chapter I Chapter II Chapter III Chapter IV Chapter V Chapter VI Chapter VII Chapter VIII Chapter IX Chapter X Chapter XI Chapter XII Chapter XIII Contents Structure amp features A e ende 1 Exploded views amp dismantling sequence of patts 4 K N e 34 Performance CU AA 40 IR EE 41 List of main parts and wear Patteet 59 MP anu un MENU SN MGE DNI DM RUN Ud ONE 65 sra vero ce P qasa 66 Air duct design amp noise reduction nn tene 83 Method f OP SEAT iss ii 89 MITA rias 94 Troubleshooting A AA 95 Typical case E 109 Yi Chunlan a Structure amp Features ChapterI Structure amp features I Brief introduction This air duct type air conditioner is our latest home commercial centralized air conditioning product This product features high efficiency energy saving mild and silent operation computerized intelligent control and healthy fresh air etc In addition wire and wireless controls are provided for easy operation The product can be widely used in large area multi room composite compartment houses villa and medium and small restaurants bars leisure and recreation sites II Indoor unit 1 Indoor unit of low static pr
46. ainer assembly 22 4 way pipe assembly Y Chunlan G Exploded view amp dismantling sequence of parts 3 FR D 71 B outdoor unit dismantling sequence 1 Remove 7 2 Remove 11 13 3 Remove 1 4 Remove 10 5 Remove 8 6 6 Remove 18 7 Remove 2 3 8 Remove 4 9 Remove 12 10 Remove 14 15 11 Remove 16 12 Remove 9 13 Remove 20 21 22 14 Remove 19 15 Removel7 Annex Dismantling sequence of typical parts Outdoor electric assembly 1 Remove top cover assembly 7 2 Remove front plate assembly 1 3 Remove right panel assembly 10 13 4 Remove electric assembly 12 Outdoors motor 1 Remove top cover assembly 7 2 Remove front plate assembly 1 3 Remove fan 2 4 Unplug motor 3 and remove the motor Outdoors compressor 1 Remove top cover assembly 7 2 Remove front plate assembly 1 3 Remove right side plate assembly 10 4 Remove reversing valve assembly 14 and air suction pipe 15 5 Remove compressor cable and take out the compressor Yi Chunlan a Exploded view amp dismantling sequence of parts V Exploded view and dismantling sequence of indoor unit of FR95 C FR125 C S 1 Exploded view of indoor unit of FR95 C and FR125 C S Y IA A 47 Yi Chunlan a Exploded view amp dismantling sequence of parts 2 Exploded view schedule of indoor unit of FR95 C and FR125 C S
47. al for FR D 95 and FR D 125 S Note FRD180 S auxiliary electric heating box outline is the same as FRD95 auxiliary electric heating box two such boxes are provided FRD260 S auxiliary electric heating box outline is the same as FRD125 S auxiliary electric heating box two such boxes are provided Method of dismantling is the same as for FRD95 and FRD125 S auxiliary electric heating box 28 Yi Chunlan a Exploded view amp dismantling sequence of parts X Exploded view and dismantling sequence of outdoor unit of FR D 180 S 1 FR D 180 S outdoor unit exploded view N o D 1 oo FR D 180 S outdoor unit exploded view 29 W Chunlan Exploded view amp dismantling sequence of parts 2 FR D 180 S outdoor unit exploded view schedule No Description Remark Top cover assembly Air intake mesh assembly Left panel assembly Right panel assembly Condenser Capillary assembly Manifold assembly Valve Dg10 VO roo A A IN Motor support ha Flat washer 5 Spring washer 5 ha N Motor Koch LA Nut M5 AR Axial flow fan CA Front panel assembly ha oN Handle ha N Electric assembly ha oo Cover plate ha No Baffle plate N Conne
48. all be taken when necessary Refer to figure below 23 Y Chun I an x Installation Damping pad FR D 95 FR D 125 S FR D 100 B FR D 180 S FR95 C FR125 C S FR D 71 B FR D 260 S O When two or more outdoor units are installed together it is necessary to select suitable positions to avoid one unit sucking exhaust air from another O Reasonable installation space required by air conditioner must strictly follow instruction manual When arranging rain shelter do not affect heat dissipation of the machine IV Installation of air duct 1 The following shows a number of typical installation modes for air duct air conditioners of different models Side air return lower air Lower air return side air delivery delivery 5 Return air port Air delivery port p Corrugated tube Air delivery port Air return port Air intake J V BA JFAAALAAA surface v Return air port FRD23 B FRD35 B FRD50 B with return air box 74 D I Chunlan x Installation FR95 C FR125 C S Refer to above figure for air exhaust mode of FR95 C and FR125 C S User can open corresponding air exhaust port as required and select air exhaust strip of correct length according to size of the port selected round it to a ring and snap it
49. allation i e use angle steel to fix indoor unit at bottom and add damping measures 2 Use canvas flexible connection between return air box and static pressure box 3 Increase length of return air duct noise was apparently reduced Case XII One set of FR100 S air duct type air conditioner was in a hairdressing center User complained about poor cooling and heating effect Analysis 1 There were a total of 3 air delivery ports one was too near and the other two had small delivery speed 2 Incorrect air delivery angle Solution 1 Change air delivery port area of the first port from 30 X 30mm to 10 X 10mm to reduce air delivery amount and increase air speed 2 Change area of the other 2 ports from 20 X 80mm to 20 X 60mm to apparently increase air speed 3 Change air delivery grating angle Case XIII An installation company installed 12 sets of FR125 S air duct type air conditioners Main units were installed in office area and user complained of high noise preventing work Analysis Flexible connection was not used for air delivery return box cross sectional areas of return air box and static pressure box were small and silencing measure was taken inside Solution 1 Remove return air box and adopt ceiling natural air return 2 Increase cross sectional area of static pressure box adopt flexible connection between static pressure box and main unit and use sagging sponge in static pressure box to reduce
50. allroom User complained about high temperature in rooms 29 C that cannot be brought down and poor cooling and heating effect Site inspection showed that current system and pressure were normal Area of application was about 150m unit Unit type selection was correct and room thermal insulation was good Analysis 1 Poor sealing between return air duct and air delivery port diffuser Clearance was between 2mm and 15mm That return air duct only returned ceiling hot air was the main cause of te phenomena 2 Air delivery in each room was not even hence poor effect 111 4 Chunlan a Typical case analysis Solution 1 Use canvas flexible connection for sealing between return air duct and air delivery port so that good circulation of indoor air is permitted 2 Adjust guide damper in air delivery hose of each room so that air delivery in each room is basically equal After correction room temperature dropped from 29 C to 25 C Case XI 9 sets of FR260 S and 3 sets of FR180 S air conditioners were installed in an office building Installation personnel found during commissioning that indoor noise was too high and beyond the level acceptable by user Analysis 1 In installation instruction manual requirement was not followed in fixing of indoor unit by angle steel at bottom 2 Flexible connection was not used between return air box and static pressure box Solution 1 Follow instruction manual to transform the inst
51. and no servicing 100 Chunlan is required Troubleshooting 2 Electrics and control protections and functions for FR23 B FRD35 B FRD50 B FR D 95 FR D 125 S FR D 71 B and FR D 100 B A Unit control objectives a Indoor fan one for all models except FR D 100 B which has two 3 speed fans b Outdoor fan one for all models 1 speed for FR23 B FRD35 B FRD50 B 2 speed for others c Compressor d Reversing valve e Indoor PTC auxiliary electric heater B Electrics and control troubleshooting Failure Phenomena Failure analysis When 3 protection signals are detected in consecutive such 3 occurrences of anti freeze 1h AC unit stops wire controller protection displays El you can only put it into operation after re powerup Check for normal cooling system check for bad contact at ID pipe temperature sensor connection check for broken wire or short circuit at sensor if normal check if R6 on indoor board is 10K ID ambient temp Wire controller displays E2 put probe broken wire it into operation after re powerup check ID connection for bad contact check for broken wire or First ambient temperature sensor short circuit in sensor 1f normal check if R7 on ID ES and you can only put it into operation after re powerup short circuit f board is 10K ID pipe temp First check ID pipe temperature sensor connection Wire cont
52. at Cooling or Heating Phenomena Possible causes Correction method Neither outdoor fan nor OD control board relay coil Replace relay compressor operating at Cooling broken wire or bad contact or Heating Compressor operating but outdoor OD fan motor failure or Replace motor or fan not operating at Cooling or damaged fan capacitor capacitor Heaune OD control board relay failed Replace relay Outdoor fan operating but compressor not operating Compressor failure Replace compressor OD control board relay failure Replace relay AC contact unreliable damaged Replace AC contactor Compressor operating capacitor damaged Replace this capacitor 4 Compressor shutdown shortly after startup Phenomena Possible causes Correction method Compressor During cooling sunshine or blocked ventilation can cause i Remove shutdown higher condensation pressure and when this is serious i obstruction and use shortly compressor overload protection will act to stop rain shelter after startup compressor 97 Chunlan Troubleshooting Phenomena Possible causes Correction method During heating small openness of or closed air delivery port condensation pressure and when serious compressor overload protection will act to shutdown compressor in air conditioned room can cause higher Check a
53. ation of air port size 3 Calculate air resistance in air delivery return systems Further verify correct type selection of air duct and ports by referencing unit air exhaust static pressure When necessary repeat above 3 steps Problem 3 Local high resistance in air duct Improper design of local resistance members such as air duct elbow reducing pieces and T branches etc causing large eddy current and hence high air flow noise Solution 1 Avoid sharp turning of pipeline at indoor unit entrance exit 2 Arrange diffuser or reducing tube of suitable length at reducing segment of air duct to avoid sudden expansion or reducing of air duct 3 At elbows and T branches etc take even flow measures such as transition arc or flow guide piece 4 Reduce or eliminate regulating valves Problem 4 Proper silencing measures not taken for pipeline system In case of high noise requirement silencing devices such as static pressure box return air box silencing straight tube silencing branch tube silencing elbow or silencing air port are not provided or incorrect or unreasonable Solution 1 When permitted by installation space static pressure box and return air box designed section air speed not exceeding 2 2 5m s to requirements as much as possible Inside these 87 Yi Chunlan a Air duct design amp noise reduction boxes stick 50mm thick sagging sponge or other sound absorption material to form silencing static pr
54. cable with yellow green earthing line FR125 S FR125 C S power cable shall be gt 1 5mm cable with yellow green earthing line indoor outdoor power connecting cable shall be gt 1 5mm cable with yellow green earthing line FRD125 S power cable shall be 4mm cable with yellow green earthing line indoor outdoor power connecting cable shall be gt 1 5mm cable with yellow green earthing line FRD71 B FR100 B power cable with yellow green earthing line and indoor outdoor power connecting cable shall be gt 2 5 mm cable with yellow green earthing line FRD71 B FRD100 B indoor power cable shall be gt 4mm cable with yellow green earthing line Indoor outdoor power connecting cable shall be gt 2 5mm cable with yellow green earthing line Indoor and outdoor signal cables shall be gt Imm cable 82 Yi Chunlan a Air duct design amp noise reduction Chapter IX Air duct design amp noise reduction I Air duct design and its effect on noise 1 Noise of air conditioning system mainly consists of aerodynamic noise mechanic noise and electric current noise Among them aerodynamic noise makes main contribution 2 Noise reduction measures Installation of air duct type air conditioner is system engineering Noise reduction includes that in indoor unit installation and that in air duct design and installation Refer to introduction of indoor unit installation for details of noise reduction in indoor unit
55. cting pipe N Air exhaust pipe N N Steam water separator N LA Reversing valve assembly N AR Air suction pipe N CA Compressor junction box cover N nN Valve Dg19 N N Compressor N oo Damper ring N No Chassis assembly 30 4 Chunlan a Exploded view amp dismantling sequence of parts 3 FR D 180 S outdoor unit dismantling sequence 1 Remove 1 2 Remove 2 3 Remove 3 and 4 respectively 4 Remove 15 5 Remove 14 and 9 respectively 6 Remove 18 and 17 respectively 7 Remove 5 and 19 respectively 8 Remove 20 and 27 Annex Dismantling sequence of typical parts A Outdoor electric assembly 1 Remove top cover 1 2 Remove right panel assembly 4 3 Remove cover plate 18 on electric assembly 17 B pl 1 Remove top cover assembly 1 2 Remove left panel assembly 3 and right panel assembly 4 respectively 3 Remove front panel assembly 15 4 Remove fan 14 5 Unplug motor 12 and remove the motor C Outdoor compressor 1 Remove top cover assembly 1 2 Remove right panel assembly 4 3 Remove electric assembly 17 4 Remove reversing valve assembly 20 5 Remove compressor 31 Y Chunlan Hz Exploded view amp dismantling sequence of parts XI FR D 260 S outdoor unit exploded view and dismantling sequence 1 FR D 260 S outdoor unit exploded view and dismantling sequence
56. ction 1 Fully open large and small shutoff or ball valve cores to detect leakage confirm no refrigerant leakage 2 Halogen mutual detection meter shall be used for detection or apply soapy water at connections and valve cores etc 3 In case of slight leakage use spanner to tighten leaking connection till the leak vanishes otherwise it is necessary to correct threaded connector and bell mouth jointing face and 80 Chunlan Installation reconnect the parts and again vent air and detect leakage 4 After detection use dry cloth to wipe out soapy water Sort all connecting pipes 6 Precautions 1 After sorting of connecting pipes wrap them and indoor unit connectors with thermal insulation material to avoid water leakage due to dewing 2 When connecting pipe is too long both unit performance and reliability will deteriorate With increased number of pipeline bends refrigerant flow resistance will increase and cooling heating performance fall FR D 95 FRD23 B FR D 71 B FR D 125 S Product series models FRD35 B FR D 180 S FR D 260 S FR D 100 B FR95 C FRD50 B FR125 C S Recommended max length m 15 20 20 20 20 Recommended max HGT diff m 5 8 8 8 10 Recommended max elbows 3 5 5 5 5 When length and height exceed above values consult us for suitable measures 3 If FRD23 B FRD35 B FRD50 B connecting pipe length exceeds 5m add 20g m refrigerant 4
57. ctional key to select operating mode Press power ON OFF key with unit in operating status the unit will not stop and enter stop status O After pressing power ON OFF key if power is interrupted and resumed later the unit will be restored to the status before power interruption E Functional key also timing key and clock setting key Q Press this key and the unit will cycle as follow Je Air speed setting key O Press this key and indoor unit air delivery status will cycle as follows R du A Y Temperature setting key e A is temperature increase key and press this key to increase temperature by 1 degree Wis temperature decrease key and press this key to decrease temperature by 1 degree O Temperature setting range is 12 C 32 C when temperature display is 12 C temperature decrease key is not functional when temperature display is 32 C temperature increase key is not functional O Entering timing function Hold down functional key E for about 5s to enter timing status and O will be displayed If the unit is ON at this time OFF will flash if the unit is OFF at this time ON will flash Press M to change hour setting increase 1 hour every time this key is pressed and press to change minute setting increase 15min every time this key is pressed Press Timing key on remote controller can also enter timing status Setting of clock After entering timing status continue holding funct
58. d corrugated plastic hose and total air delivery cross sectional area was less than 0 1 m hence air delivery side was seriously blocked Solution 1 Reinstall indoor unit and change its orientation also ensure certain space to allow free air return 2 Increase air delivery branch hose cross sectional area or increase number of such branch hoses so that total air delivery cross sectional area at any section is larger than 0 15 m avoid local flattening and short distance right angel sharp turning Case III A user recently installed two FR95 air duct type air conditioners and found poor heating effect and small air delivery Measured indoor unit air intake temperature was 21 7 C indoor unit air delivery temperature was 34 C room air delivery port temperature was 28 C outdoor ambient was 8 2 C operating current was 11 5A and heating pressure was 1 4Mpa Analysis 1 Under nominal operating condition rated operating current was 16A and heating pressure was 1 8Mpa amount of freon in the unit was apparently small 2 There was no return air port in any room and air return depended on side doors 3 The static pressure box had an air delivery hole and was too near indoor unit air return causing air short circuit and affecting air delivery in other rooms Solution 1 Add freon to specified value and carry out overall leakage detection of pipeline 2 Provide effective air return twice the size of air delivery port area to ensure fav
59. damper shall be tight and fresh air flow shall be adjustable b Requirements on fresh air port Fresh air port shall be arranged upstream of air exhaust port as much as possible and lower than air exhaust port Fresh air port shall be arranged on north wall as much as possible and height of its bottom above outdoor floor should be not smaller than 2m and not smaller than 1m when arranged in afforestation area Strainer shall be provided at inlet of fresh air to purify outdoor air and improve indoor air quality 76 VA Chun I an x Installation 4 Connection of air delivery duct with the unit Soft connection canvas etc shall be used between air delivery duct and the unit Refer to indoor unit installation dimensions for air delivery port dimensions Based on FR D 95 5 Connection of return air duct with the unit 1 Soft connection e g canvas shall be used between return air duct and the unit 2 For FR D 95 FR D 125 S FR D 180 S and FR D 260 S it is necessary to remove retaining strips on both sides of indoor unit return air port strainer 3 Use tapping screws or rivets to connect return air duct to indoor unit return air port Control depth of drilling for tapping screws to avoid penetrating evaporator copper tube or condensate tray 4 For FRD23 B FRD35 B FRD50 B FR D 71 B and FR D 100 B a segment of canvas air duct can be fabricated and reinforced by 8 iron wire This shall be folded and have one end con
60. dwa edid sooping EH YM qams amsead Ir Pra Ad pre jun 1oopino Yun Joopul fee Jeyjenuoo Jowo gjg Je O 1u09 211 18 rosuos omyeJodula did zoopur lU osuas oJnjeJoduio juorquie JOOPUT FRD71 B circuit diagram 44 Circuit diagrams de V Chunlan wex3erp momo 001 Josn q perjddns oq eis IOOpINO IOOPUI SO quo Surjoeuuoo PUE so quo omod uaa MOJA Jd usas mojeg UOTMS are ome OT men JOJOU Ut JOOPMO ZHOS AQCZ ang z UMOIG J D yeas euru ZULM tX z N lojroede tN 1Josseiduroo U IS MOTI A opd NTH umoig yeas euro SUL A BA BUISIOAD 1898 fett SUM t Y e Io OJjuoo How JOT OIUOD DIM pjeoq Ionuoo uien Eaa Josuos oimesoduiay edid 1oopino ES iul IS jun J00pmMQ 89d LY 10 uos o1nje1oduio Nx lec osuas ounjejoduiog juorquie 1oopuj prun Joopu FR100 B circuit diagram 45 Circuit diagrams de Yi Chunlanx UR GI momo 98 001 0343 ules I ana yog snpeum 1 WSH 2 poy Aptai Teg Josuos J HOG AOZZ ainjeroduray H3 dd E US913 MOTJSA Jojour ue JOOPMO uce4djMo 2A 1ossoJduro ZN Jopoedeg W Jo o uoo gowy UMOIE 3 z X9 0XJUuOO our Joyoede o H gog Pues AN w Co gq koyoedeot 9 H preoq onuoo UTA 1030u u
61. e y Jd oed d Hd i i0jotjuoo OV M Jopoedeg 8N jovjuoo OV MET ZOEK lem z and n dE Josuas oqnje1oduro odid zoopur pera umolg bu SD D H m CN WW UA aATBA SUISIDADA poy YN Josuos omjeJoduro Juorqure JOOPUT yolg 8 Senat M NI KN oer f n SUES SUM quos peruano Seen tY ed SN Kean Josues 91myexodtua edid roopino s H E qrun JOOpu yun JOOPMQ 1 pul FRD100 B circuit diagram 46 Circuit diagrams YOUMS II one OT Jd 18 Jd 18 ncs S R d zem dE Ad ong al MON n loge deon U99 13 MOTTA 9918 MOTIOA B Han Gaia lolas Pod ovg MIA rojroedeo USIH MOT NE NE gn4 oonu 91r Jojoedej SEN BR PA 2 dy poq onuoo UIEN ny Se PACTA 80d lojoejuoo OV SND N 14 rosos asmyeJodua Sad popu CI N d OW Ny MYM NO q Sy ong mel ng W y pos H ND Josuas omodu ESSI Li N9 JU9IQUIB JOOPUT eds BUILD SULIT X jeos puru SULIIA 1 X iil ag PRS Bel HI Zei yun 1oopino yun Joopug wergerp molto G68 4 V Chunlan FR95 C circuit diagram 47 Circuit diagrams de Ws Chunlan dd dd NO preog o guoo WEN Hd eN U9913 MOIJSA U9913 MOIJSA 3 d di xxn UM zJ zN SA Josso1duro T JOjOUI up T IN ESSE Me AZ Eu A LIN acest po L Ok HOG AORC B psu e ND Iope OV 3 d JOJOUI UL q 3 d E MOTTA o JOojroedeo ue a e
62. eds 28A Wire controller displays E7 only Overcurrent I Check for damaged OD board LM339N put it to operation after re f protection Check for damaged triode on main control board poweru P p Check for bad contact at ID OD connecting cable Check for damaged OD board current transformer Check for normal cooling system Load i Wire controller displays E8 only During cooling check if OD pipe temperature oa relie put it to operation after re sensor exceeds 70 C protection I e powerup During heating check if ID pipe temperature sensor exceeds 68 C LV switch shall be ON check for bad contact at card connection Check for bad contact at ID OD connecting cable Wire controller displays E9 only LV switch protection put it to operation after re powerup card connection Schedule of other common failures of FR180 S and FR260 S air conditioner PCB board Method of correction Check for normal remote control receiver Remote Check for normal remote control transmitter control failure Check for normal remote controller Check for normal 3V batteries Remote Check crystal oscillator circuit controller failure Check for normal transmitter Check for displaced or bad contact in conducting rubber 104 VA Chun I an a Troubleshooting Method of correction Check for normal temperature sensor RT1 Check for normal DC12V DCSV power supply No heating Check for re
63. emove 10 11 Annex Dismantling sequence of typical parts Indoor capacitor 1 Remove 1 2 Remove capacitor Indoors motor 1 Remove electric box 18 2 Remove plug of indoor motor from control board in electric box 3 Remove air intake plate 1 4 Remove top plate assembly 2 with 3 4 and 15 5 Remove spiral casing 5 and impeller 6 6 Remove motor 12 and capacitor Note FR D 71 B and FR D 100 B have two air return modes lower air return and rear air return This exploded view and dismantling sequence is based on rear air return Chunlan Exploded view amp dismantling sequence of parts IV Exploded view and dismantling sequence of outdoor unit of FR D 71 B 1 FR D 71 B outdoor unit exploded view Outdoor unit FR D 71 B outdoor unit exploded view 18 Yi Chunlan a Exploded view amp dismantling sequence of parts 2 Exploded view schedule for FR D 71 B outdoor unit No Description Remark 1 _ Front panel assembly 2 Axial flow fan 3 Motor 4 Motor support assembly 5 Condenser 6 Left panel 7 Top cover assembly 8 Air intake grating 9 Baffle plate assembly 10 Right panel assembly 11 jHandle 12 Electric assembly 13 Valve support assembly 14 jReversing valve assembly 15 Air suction pipe 16 Steam water separator 17 Chassis assembly 18 Fong strip 19 Piston type compressor 20 Capillary assembly 21 Str
64. erating environment T EE Chunlan Cooling 15 C lt lt T lt 32 C indoor 18 C lt T lt 43 C outdoor Main technical parameters Heating 12 C lt T lt 27 C indoor 7 C lt T lt 24 C outdoor 3 Value in is nominal value of auxiliary electric heating 4 Return air port size based on optional return air box size II Main technical parameters for FR D 71 B and FR D 100 B Model FR71 B FRD71 B FR100 B FRD100 B Rated cooling capacity 7100W 10000W Rated heating capacity 7500W 7500 2300 W 10500W o SE Power supply 220V 50Hz Rated input Cooling 2760W 3900W power Heating 2420W 3100W Rated input Cooling 13 4A 17 8A current Heating 11 8A 11 8 10 5 A 14 2 A 14 2 10 5 A Air circulation flow 1500 m h 2000 m h Air exhaust static pressure 30Pa Indoor unit noise SAdB A 56dB A Outdoor unit noise 60 dB A 62dB A ss Indoor unit 44 Kg 46 Kg 60 Kg 62 Kg Outdoor unit 78 Kg 85 Kg Filling of refrigerant R22 2 7 Kg R22 3 3 Kg Conn pipe Liquid pipe Liquid pipe d 10x1 HEN Steam pipe Steam pipe 16x1 Outline Ind unit mm 1260x555x226 mm 1880x555x226 mm WxDxH Outd Unit mm 950x370x746 mm 950x420x853 mm Notes 1 Length of connecting pipe for test 7 5m 2 Operating environment T Cooling 15 C lt T lt 32 C indoor 18 C lt T lt 43 C outdoor Heating 12 C lt T lt 27 indoor 7
65. ermine drilling position on wall by referencing indoor unit installation position and connecting pipe position Hole size shall be P95 100mm and outdoor side of the hole shall be lower than indoor side by 5 10mm 3 Determine length of wall penetrating tube according to wall thickness longer than wall thickness by about 10mm Insert the tube in the hole drilled on wall for threading of connecting tube connecting cable and drainage tube Note Use sealing putty to seal clearances between penetrating tube and hole between penetrating tube and connecting tube and between connecting cable and drain pipe so as to prevent ingress of rainwater and air 2 Installation of condensate drain pipe 1 Condensate drain pipe shall be normal PVC pipe of 16 17 inner diameter FR95 C FR125 C S water discharge pipe inner diameter is 17 while FRD23 B FRD35 B FRD50 B water pipe inner diameter is b 20 21 2 Install user supplied drain pipe on indoor unit drain pipe outlet and seal with glue 3 Condensate drain pipe shall have 1 50 1 100 down slope be supported by hard frame not bent as return water type and its tip shall not be dipped in water 4 Drain pipe shall be wrapped with thermal insulation material to avoid water leak due to dewing 3 Connections 1 Unscrew nuts on shutoff or ball valves on indoor unit pipeline and outdoor unit 2 Drip small amount of frozen oil at 2 bell mouths of connecting pipe align bell
66. ess power ON OFF to start Turn Use func n key to select heating on Use AS key to select air speed Use TS key to set room temp Off Press power ON OFF key 4 Ventilating Pre Turn on Off Press power ON OFF key Warning When the unit is not to be used for a long time use ventilating function for 3 4 hours to completely dry up the air conditioner 93 Y Chun I an x Maintenance Chapter XI Maintenance O To place the unit in outage first stop the air conditioner and then turn off power switch O After long operation of outdoor unit dust will accumulate on surface of heat exchanger lowering heat transfer efficiency and hence unit performance Use long hair brush or compressor air to clean such surface O Cleaning cycle of indoor strainer depends on installation position and environment Frequently clean indoor strainer to avoid failure Indoor units of FR D 95 FR D 125 S FR D 180 S FR D 260 S FR95 C and FR125 C S are complete with strainer Indoor units of other models are not complete with strainer hence return air grating with strainer must be used Method to remove strainer of indoor units of FR D 95 FR D 125 S FR D 180 S FR D 260 S FR95 C and FR125 C S D Remove reserved seal plate on return air duct 2 Lightly push strainer upward move limiting chute out and lightly remove strainer from under x X Z S Y LS Z Se Strainer DA CCS Y LX s S Di
67. essure box or return air box for substantial reduction of noise at unit air delivery port exhaust 2 Note Ceiling space accommodating the unit is itself a large static pressure box If material of ceiling cover plate is mineral wool or other sound absorbing material equipment room walls are brick masonry instead of glass and wall tightness is good noise radiated by unit casing will be greatly reduced 3 Design correct and reasonable silencing straight tube branch tube elbow or air port for particular type selection reference manufacturer product samples 4 Increase thickness of air duct wall and wrap ultra fine glass wool or other sound absorbing material of suitable thickness on exterior of air duct 5 Due to limited sound absorption performance of traditional galvanized air duct and fiberglass reinforced plastics air duct stretching metal non metal flexible hose polyurethane composite air duct super air duct and other new type of sound absorption thermal insulating air duct can be considered III How to avoid poor cooling heating effect 1 Carry out correct type selection 2 To extend pipeline add freon to requirement by manual 3 For higher user requirement on heating unit with auxiliary electric heating is recommended 88 Yi Chunlan a Method of operation Chapter X Method of operation I Description of wire controller 1 Ordinary wire controller Power indicator Display window Remo
68. essure series air duct type air conditioner Mounting hole Return air box optional Return air port Fresh air port Remote controller A Water outlet FRD23 B FRD35 B amp FRD50 B indoor unit outline III tact mm Electric box Mounting hole Wire controller Remote Ny Ponit Evaporator FR D 71 B amp FR D 100 B indoor unit outline ads Yi Chunlan a Structure amp Features 2 Indoor unit of medium static pressure series air duct type air conditioner Electric box Wire controller Remote controller FR95 C amp FR125 C S indoor unit outline 3 Indoor unit of high static pressure series air duct type air conditioner Mounting strip II H Electric box Remote controller FR D 95 amp FR D 125 S indoor unit outline Mounting strip Wire controller e e Air exhaust Se Remote eae FR D 180 S amp FR D 260 S indoor unit outline Pay Yi Chunlan a Structure amp Features FRD95 FRD125 S FRD180 S amp FRD20 S auxiliary electric heating box o intake III Outdoor units FRD23 B FRD35 B FRD50 B outdoor unit FRD71 B FR71 B outdoor unit Air intake Air exhaust FR D 95 FR D 125 S FR95 C FR125 C S FR D 100 B outdoor unit outline Air exhaust Air intake Air exhaust Air intake FR D 180 S outdoor unit outline FR D 260 S outdoor unit outline Yi Chunlan a Exploded view amp dismantling sequence of parts Chapter II
69. f FR D 95 and FR D 125 S Main technical parameters Model FR95 FRD95 FR125 S FRD125 S Cooling capacity 9500W 12500W Heating capacity 11000W 11000 3000 W 15000W 15000 4500 W Power supply 220V 50Hz 380V 3N 50Hz Cooling 3950W 4900W Rated input power Heating 3500W 3500 3000 W 4500W 4500 4500 W Cooling 18 2A 8 6A Rated input current Heating 16A 16 13 7A 8A 8 6 9A Air circulation indoor unit 1900m h 2700m h Exhaust air static pressure 76Pa 127Pa Indoor unit noise 61dB A 64dB A Outdoor unit noise 62dB A 64dB A R22 filling amount 2 95Kg 3 2Kg Climate type T1 Remote control Yes Indoor unit 35Kg 43Kg Mass Outdoor unit 85Kg 95Kg Size of ID OD connecting pipe user supplied Liquid pipe o 10x1 Liquid pipe d 10x1 Steam pipe 16x1 Steam pipe 19x1 5 Connecting nut LP M16x1 5 SP M22x1 5 LP M16x1 5 SP M27x2 Outline Indoor unit mm 655x618x400mm 865x618x400mm WxDxH Outdoor unit 950x lt 360x853mm 950x360x853mm Notes 1 Length of connecting pipe for test 7 5m 2 Operating environment T Cooling 15 C lt T lt 32 C indoor 18 C lt T lt 43 C outdoor Heating 12 C lt T lt 27 indoor 7C lt T lt 24 C outdoor 3 Value in is nominal value for auxiliary electric heating 38 Chunlan Main technical parameters V Main technical parameters of FR D
70. further inspection showed that there was no display on wire controller of this unit After replacement of wire controller there was still no display on wire controller By swapping wire controller cards on indoor main control boards of two units the originally failed unit now operated normally while there was no display on the originally normal unit Measurement of wire controller connecting cable showed that there were m any extension connections on it and the cable had been wetted and had large resistance 110 Yi Chunlan a Typical case analysis Solution Replace with complete wire controller connecting cable of sufficient length Case VII A user installed two sets of FR180 S Chunlan air duct type air conditioners After a period of use it was found that cooling effect was not good no cold air was blown out and air suction hose was frosting Analysis One fan motor was found not operating Measurement showed that this motor was damaged After replacing the motor air delivery was still small and hose side was frosting Return air strainer was checked for clogging After cleaning air delivery was still small Finally it was found that return air duct was leaking and indoor unit strainer was seriously blocked Solution Repair leakage in return air duct and remove indoor unit strainer for cleaning Case VIII A user installed two sets of FR260 S Chunlan air duct type air conditioners in 2001 Shortly afterward it was found that E6
71. ible causes Correction method Neither Power outage Restore power supply indoor unit Transformer burnt down Locate fault repair replace transformer Bar outdoor Melton Short circuit between lines Clear short circuit replace fuse unit Line earth fault fuse U Clear earth fault replace wire operating bad insulation Power plug not in place or bad contact Correct bad contact plug in socket Indoor outdoor wiring mistake Follow electric diagram in correct wiring Molten controller fuse Replace controller fuse Controller burnt down Replace controller Unit failure protection activated Check per failure characteristics display 96 Chunlan Troubleshooting 2 Display of remote controller or wire controller indicates air delivery position but fans are not operating Phenomena Possible causes Correction method Display of remote Indoor fan burnt or broken wire Repair or replace fan controller or wire Damaged fan capacitor Replace capacitor controller indicates air delivery position but fans are not operating Bad contact in main ctrl board relay or coil broken wire Replace main control board relay Fan card contact open Repair bad contact Note During heating defrosting or prevention of cold air remote controller indicating air speed but fans not operating is normal and not failure 3 Troubleshooting for failure of outdoor fan or compressor operation
72. ies 45 Grade I 30 Meeting room Grade II 40 Office Grade III 45 Grade IV 55 Ballroom non operating time 40 Operating time Note In short air duct port design type selection shall follow the 3 steps below 1 Roughly calculate air duct cross sectional area and air port air delivery return areas according to rated unit air flow and suitable air speed 2 According to National common ventilating pipeline calculation table preliminarily determine air duct size and dimensions preliminarily determine air port size by referencing relevant manufacturer product samples 3 Calculate air resistance in air delivery return system further verify air duct by referencing unit air exhaust static pressure select correct type of air ports When necessary repeat these 3 steps Note For higher user requirement on noise silencers shall be installed on air delivery return ducts a Resistive silencer By means of sound absorbing material stuck on inner wall of air duct sound energy propagating along air duct is partly converted to thermal energy to reduce noise This type of silencer has good performance for medium and high frequency noise and relatively poor effect on low frequency noise b Reactive silencer By means of sudden expansion contraction and bypassing resonance cavity of air duct cross section noise propagating along air duct at specific frequencies and frequency bands is reflected at points of sudden change The type of
73. ional key E for about 6s and then release to enter clock setting status At this time O will flash and press Ke can change hour setting increase 1 hour every time this key is pressed and press A to change minute setting increase Imin every time this key is pressed Continue setting till the clock is 24h system Beijing time 91 4 Chunlan a Method of operation II Description of remote controller The remote controller has 8 keys of the same functions as those of corresponding keys on wire controller When timing key is pressed the unit enters timing status and press to change hour setting increase 1 hour every time this key is pressed and press V to change minute setting increase 15 min every time this key is pressed Chunian III Installation of remote controller batteries D Remove batteries cover in direction shown by the arrow 2 Fit 2 valid 5 batteries to polarity requirement in battery chamber Close batteries cover by pushing upward Notes 1 Use 2 5 1 5V batteries do not mix different batteries 2 Remove batteries if the remote controller will not be used for a long time gt 2 months 3 Replace batteries when remote control signal is weak 4 Batteries supplied with equipment are valid for 6 months IV Method of operation 1 Precautions a Before startup of air conditioner connect power to requirements and ensure reliable earthing b After shutdown of
74. it connecting pipe Separate thermal insulation for big and small pipes Defrosting controller failed Replace defrosting controller Poor air delivery duct design installation or user operation causing reduced indoor air delivery Re design or re install air delivery duct proper use of unit by user 7 Water leakage on indoor unit Phenomena Possible causes Correction method Indoor unit water leakage Dewing of drain pipe Replace with insulated pipe or wrap drain pipe with insulation Clogged or broken drain pipe Clean or replace drain pipe Wrapping of pipe connector not tight dewing Wrap tight Water leakage in indoor condensate tray Replace condensate tray Serious inclination of indoor unit Re install indoor unit II Electrics and control troubleshooting 1 Maintenance prompts In case of abnormity of air conditioner do not remove circuit board check the following a Failure in power supply line power input must be safe and reliable b Correct operation of air conditioner and operating conditions of each operating mode refer to operation manual for method of operation c Good contact of cards and reliable installation of indoor outdoor connecting cable d Normal status of compressor fans and sensors refer to instruction manual for electric wiring e Functional protection caused by external environment is normal protection
75. le of indoor unit of FR D 180 S and FR D 260 S No Description Remark 1 Top plate assembly 2 Strainer I 3 Evaporator assembly 4 Strainer 2 5 Water tray assembly 6 Strainer retaining strip 7 Left side plate assembly 8 Fixing block 9 Left small hole cover plate 10 ISquare hole cover plate assembly 11 Air intake 12 Bottom plate assembly 13 Impeller 14 Spiral casing assembly 15 Tapping screw ST4X12 16 Front panel assembly 17 Motor 18 Bolt M6X16 19 Motor fixing block 20 Capacitor clip 2 Capacitor 22 Right side plate assembly 23 Right small hole cover plate assembly 24 Mounting strip 25 Bolt with two washers 26 Retainer 297 Yi Chunlan a Exploded view amp dismantling sequence of parts 3 Dismantling sequence of indoor unit of FR D 180 S and FR D 260 S 1 Remove 1 2 Remove 2 3 Remove 8 4 4 Remove 14 16 5 Remove 23 6 Remove 7 7 Remove 3 8 Remove 5 9 Remove 22 Annex Dismantling sequence of typical parts Indoors right motor capacitor seen from air exhaust 1 Loosen tapping screw on retainer 26 rotate retainer 26 2 Remove right small hole cover plate assembly 10 3 Remove capacitor clip 20 Indoors left motor capacitor seen from air exhaust 1 Remove 1 2 Remove capacitor clip 20 Indoor motor 1 Remove 1 2 Remove 14 3 Same method as for motor remov
76. liable output port connection of compressor reversing valve ID function ans and OD fans Check for main control board damage Check for correct reversing of reversing valve Check for intact connection of outdoor unit wiring terminal Reversin Check for damaged main control board valve failure Check for bad contact at ID OD connecting cable cards Check for intact connection of indoor unit wiring terminal and damage of Indoor fan main control board failure Check for intact indoor fans Check for intact fan capacitors Check for intact connection of outdoor unit wiring terminal Outdoor fan Check for damaged main control board failure Check for intact outdoor fans Check for intact fan capacitor In FRD23 B FRD35 B FRD50 B FR D 95 FR D 125 S FR D 71 B and FR D 100 B air conditioners program controlled PCB board consists of main control board PCB1 wire controller PCB2 and remote controller PCB3 Refer to following table for their universality FR71 B FRD71 B FRD23 B FR95 C FRI00 B FR180 S FRD100 B FRD180 S FRD50 B FRD35 B FR125 C S FR95 FR260 S FRD95 FRD260 S FR125 FRD125 S MCB PCB FRD35 B FRD50 B FRD95 FR95 FR180 S FRD95 FRD260 S WC PCB2 LCD Normal FR D 180 260 S RC PCB3 Universal PCB3 Outdoor electric part is shared by FR180 S and FRD180 S by FR260 S and FRD260 S and by FRD95 and FRD100 B Others have different outdoor electric part 105
77. mouth center with pipe connector then tighten nut with spanner P d Pipe supplied with indoor unit y Conical nut Auxiliary pipe Spanner A J spanner 79 Y Chun E an x Installation Notes 1 Ensure quality of user supplied connecting pipe Before connection clean inside of pipe and prepare bell mouths You can order these from our factory 2 Site fabrication of bell mouths must use special pipe expander to avoid F22 leak after installed 3 Use two spanners to tighten connection between indoor unit and connecting pipe otherwise indoor unit tubing may twist deform or even break 4 Venting of system 1 Loosen nut on upper air pipe large pipe of outdoor unit large shutoff ball valve by half a round 2 Unscrew valve core nut on the two valves 3 Open small shutoff or ball valve core by one round When you feel that air coming out of air pipe nut on the large shutoff or ball valve is cold this means that air is basically vent Immediately tighten air pipe nut with spanner Then open both shutoff ball valve cores put on valve core nuts and tighten Large shutoff ball valve Small shutoff ball valve For venting unscrew nut and open valve core by one round Liquid pipe Note Use of the unit without opening all valve cores will cause failure or poor performance When ball valve core is rotated parallel to pipeline axis the valve is open 5 System leakage dete
78. move 8 4 4 Remove 14 16 5 Remove 23 6 Remove 7 7 Remove 3 8 Remove 5 9 Remove 22 Annex Dismantling sequence of typical parts Indoor capacitor 1 Loosen tapping screws on retainer 26 rotate retainer 26 2 Remove right small hole cover plate assembly 10 3 Remove capacitor clip 20 Indoor motor 1 Loosen tapping screws on retainer 26 rotate retainer 26 2 Remove left and right small square hole cover plate assemblies 10 respectively 3 Remove left air intake 11 remove impeller 13 4 Remove plugs of motor 17 and capacitor 21 from control board 5 Remove connecting bolt between motor fixing block 19 and fan spiral casing 14 6 Remove motor 21 Yi Chunlan a Exploded view amp dismantling sequence of parts VII Exploded view and dismantling sequence of auxiliary electric heating box of FRD95 and FRD125 S Exploded view of auxiliary electric heating box of FRD95 and FRD125 S Exploded view schedule of auxiliary electric heating box of FRD95 and FRD125 S No Description Remark 1 Top plate 2 Frame assembly 3 Left side plate assembly 4 Bottom plate assembly II 5 Bottom plate assembly I 6 PTC electric heater 7 Right side plate assembly 8 Cover plate Dismantling sequence of aux electric heating box PTC of FRD95 and FRD125 S 1 Remove electric box cover 8 and remove PTC electric heating wire 2 Remove bottom plate assembly I
79. mp FRD100 B aux electric heating Symbol Description d FRD71 B FRD100 B PCB1 Main control board Pee 0 E FT 23 l time fuse 139 C 15A 139 C 15A KT 55 Auto reset thermal protector KSD A135 C 10A KSD A135 C 10A EH 53 PTC heater MZFR 2 3K W MZFR 2 3K W XT1 Wiring terminal JXO AB 600V 60A JXO AB 600V 60A XT4 Wiring terminal 7 fr XT5 Wiring terminal bee C eg ken K Small relay JQX 116F L 220AL 2HS JOX 116F L 220AL 2HS 60 W Chunlan 4 List of main parts amp wear parts of FR95 C and FR125 S C List of main parts amp wear parts Size Model Symbol Description FR95 C FR125 C S PCB1 Main control board 4 pe PCB2 Wire controller r r Keen PCB3 Remote controller c Keen RTI Temperature sensor 3324 3324 RT2 Temperature sensor 3324 3324 RT3 Temperature sensor 3324 3324 C1 Capacitor CBB61A 5uF AC 450V CBB61A 8 u F AC 450V C2 Capacitor CBB611A ou F AC 450V CBB611A 8u AC 450V C3 Capacitor CBB65A 60u F AC 450V CA Capacitor CBB65A 1K 50 u F AC450V Communication line RFIOAW FG 000 01 RF10AW FG 000 01 OD pipe temp probe line RF10AW FG 000 02 RF10AW FG 000 02 M1 Outdoor fan motor YDK3120 45 6 IY DK5120 45 6 M2 Compressor ZRA7K3 PFJ ZR61KC TFD M3 Indoor fan motor Y SK 139 35 6 YSK139 35 4 T Transformer Z371 Z371 FU Fuse 10
80. n 83d IaT OIUOS AJOS E Kaf lo onuoo em E Leer H amp ant d _ L verd HJ N en NO yun 1oopu 53 Circuit diagrams de V Chunlan amp yeas eururr SULA LX JOJ9R UO9 DV TAD 9503 eum q 9 TLLA mere Momo S OOTTAA 510122 01d e WI j2s21 ONL o d5 PWA MP Ld 9T HA SION uoor koro A ar 36 i pow pou ya COS lena ZHOGANE P pow uols Ie up woo peu D lj E qr i A po H e es yE Pu pou jd uu ma OS por SE g MOTOR MO x pra qu m ome OL d Sei me oL MAI cb mor xs D i 1X EE SE nra r N E 7 Joys omssold ur N d Sd EEN h us E I yams omsso1d MOT L di SOENQQ T NO A I anja N p M a ae oare Sumuoaowy AA j I I JOUIJOJSULIL 108805 T I r E 1 A y jd Y osuos aimeledure Ll ll ef l edid Joopino 1 M ZA i i IOjOUI UBT opoedeo ue pow JOU USH i gaq N poa MIR i Jopoedeo ue q NH i J lonuoo HOW MUA is HU N INN MOIN J _ 99d i i JO OXUOO DIEM 100W ue pen E mi El e 19913 MOT SA royroedeo ue i DE yY N 782d Lona W I JA U HJ i U Ne Ng 9 3d A JOjOUI UBH ee MOJA
81. n schematic based on FRD35 B 1 Outdoor unit 2 Indoor unit 3 Air delivery pipe 4 Air delivery branch pipe 5 Air delivery port 6 Branch air return port 7 Air return port 8 Controller 9 Connecting pipeline High static pressure air duct air conditioner installation schematic based on FR260 S D Outdoor unit 2 Indoor unit 3 Air delivery pipeline 4 Air delivery port Zi 5 Branch air return port 8 Air return port Em Wire controller Connecting pipeline E Medium static pressure air duct air conditioner installation schematic 66 Chunlan Installation II Installation of indoor unit 1 Selection of installation position O At or near application site with stringent requirement on noise indoor unit shall be installed as far away as possible When the machine is near rooms with high silencing requirement sound insulating doors and windows shall be used for air conditioner equipment room subject to Owner agreement The machine shall be installed in special equipment room water closet store room or ancillary room as much as possible Site of installation shall be able to withstand weight of the machine reinforcing measures shall be taken for mounting floor beam subject to potential hazard before installation O Position of installation shall ensure shortest connecting hose between indoor and outdoor units and length of indoor air duct shall be suitable O Sufficient air deliver
82. nd adjust air port openness Power voltage is low and less than 10 rated voltage f Use AC voltage causing increased current and action of overload regulator protection Increase power Insufficient power grid capacitance grid capacitance Compressor jammed causing sharp increase of current and action of protection Replace compressor 5 Bad or no cooling in cooling mode Phenomena Possible causes Correction method Bad or no Improper OD unit installation position e g direct Reinstall remove obstacle or cooling In sunshine on unit bad ventilation or obstruction use rain shelter ge Damaged or failed temperature sensor Replace temperature sensor mode Dust accumulated on air strainer in long operation will reduce air cycle and lower evaporator heat exchange efficiency hence cooling effect Clean strainer to remove dust and let it dry in cool air before reinstallation Dust accumulated on air conditioner fins can cause insufficient cold air cycle or bad heat dissipation hence lowering cooling effect Use compressed air to remove dust long hair brush or Clogged capillary in cooling cycling system causing sudden failure of this system or lowered cooling effect Again pump vacuum fill refrigerant Or replace capillary strainer etc Refrigerant leakage due to bad welding of system pipeline or damaged copper tube bad sealing of shutoff valve filling po
83. nected to indoor unit air exhaust via rivet and the other end connected to return air louver or strip return air port so that free adjustment can be made according to height of indoor ceiling Return air grating with washable air strainer must be installed to prevent dust from entering the unit Recommended distance between return air port edge and wall is above 150mm 5 Return air duct installation mode for FR95 C and FR125 C S is the same as for FRD23 B FRD35 B FRD50 B FR D 71 B and FR D 100 B 3 return air modes can be adopted upper air return lower air return and rear air return Return air mode selection depends on unit installation mode and return air duct installation mode 5 Canvas soft connection is adopted for air delivery port air return port and main unit No tensile force shall exist between air duct and main unit otherwise noise level will be higher Note For FR D 95 FR D 125 S FR D 180 S and FR D 260 S strainer with mesh similar to unit strainer shall be fitted at end return air grating otherwise a 70 100mm wide area on lower side face at connection between return air duct and indoor unit shall be removable so that user can directly withdraw unit strainer for cleaning as shown in the figure below If return air port is complete with strainer we recommend that indoor unit strainer be removed ss Y Chun I an x Installation GE Return air duct fixing holes Strainer retaining strip
84. noise 3 Re fix main unit as follows Use 2 pieces of 4X 40 angle steels for fixing at bottom Add wood plate 15mm thick on these angle steels and stick PE plates 10mm thick on such wood plate Size of wood plate and PE plate shall be the same as that of indoor unit bottom 112 Chunlan a Typical case analysis face Case XIV In installation company installed one FR71 B air duct type air conditioner Main unit was installed in office As limited by decoration structure no air duct was used for indoor unit and direct lateral air exhaust was used Noise of air flow was too high Analysis 1 Sectional size of return air box was too small and air speed too high 2 Right angle bent connection used between main unit and air delivery hose Solution 1 Remove return air box increase air return cross sectional area and lower air speed 2 Use arc transition connection between air delivery hose and main unit to reduce resistance Case XV A user installed one FR260 S air duct type air conditioner Main unit air delivery port had high noise Analysis 1 Fixing of indoor unit did not follow instruction manual requirements 2 Distance between return air box and ceiling was only 12cm and return air space was too small 3 Static pressure box was not installed Solution 1 Re fix indoor unit to instruction manual requirements 2 Remove return air box to increase return air space 3 Install static pressure box
85. nsor if normal check if R5 on ID board is 10K circuit re powerup Check for reliable welding on main control board CN6 and wire controller CNI needle seat reliable insertion of cards and broken or short circuit of communication In case of line communication tutaedberwaen quin Check for EEN input on wire controller DC5V control board and 9utput on main control board 7805 3 pin and DC5V C icati E i PEE lon v re cotitrolles me on RG1 3 of wire controller u latter displays ES and you can only put it into operation after re powerup Check normal voltage on main control board 2003 driving block Check for normal voltage on crystal oscillator pin of main control board and wire controller Check for normal voltage at communication input output of main control board and wire controller 106 VA Chun I an a Troubleshooting C Other failures Method of correction Main control board PCBI not operating Remote control failure Remote controller failure No cooling function No heating function Reversing valve failure Check for molten FU fuse Check for normal DC12V DC12V output on main control board 7812 3 pin and DC12V input on wire controller Check for normal DC5V DC5V output at main control board 7805 3 pin and DCSV on wire controller RG1 3 Check crystal circuit on main control board and for normal voltage at crystal oscillator pins of chips 1 and 2 Check for normal resetting
86. nts described in Product installation and operation manual and Chunlan home commercial centralized air conditioning system design code e g indoor unit is too near conditioned area or in such area or proper fixing damping and sound insulation is not carried out Solution 1 Indoor unit shall be installed away from environment and rooms that require quietness The unit can be can be installed in special equipment room toilet storeroom or other ancillary rooms If this is not feasible make sure to contact our quality management section to obtain proper noise reduction solution as soon as possible to avoid rework and loss 2 Use elastic material to fill air delivery return dust penetrations through enclosure and gap around holes 3 Suitable sound insulation measures shall be taken in equipment room according to permitted noise level of nearby rooms and buildings If the equipment room is near room s with high requirement sound insulating doors and windows shall be used for equipment room this clause is subject to Owner agreement 4 Lifting and installation method shown in the figure below is preferred In the figure at lower end of unit are two angle steels on top of which is a 15mm wood plate of the same size as that of unit bottom size 10mm thick PE board is mated on the wood plate Air duct system Problem 1 Flexible connection is not used for unit air delivery return ports Air delivery return duct is di
87. on the port Then connect air duct and lead it to required position ep B O Air delivery duct Return air port OO Air delivery duct Return air port L J JI ZZ Y EE AS E Mode 1 Mode 2 Air delivery duct Fresh air port B Mode 3 Typical installation modes of FR D 95 FR D 125 S FR D 71 B FR D 100 B FR D 180 S and FR D 260 S are shown above 1 Select reasonable installation mode according to site characteristics user requirements and machine performance 2 Cross sectional area of air duct shall meet specification In case of noise requirement by user follow relevant requirements described in air duct design and noise reduction sections of this manual 3 Recommended distance from main unit air return port edge to wall is above 800mm For FRD23 B FRD35 B and FRD50 B this is above 150mm 4 If there are many air delivery ports to ensure even air delivery at such ports in addition to reducing air ducts and static pressure box installed for even flow adjustment damper should be provided at each branch air duct or air delivery ports with adjustment damper be selected 5 Air delivery and return ducts shall be fixed on prefabricated floor slab via iron support 275 Chunlan Installation 6 Thermal insulation layer shall be stuck on air delivery ducts and no leakage shall exist at connections
88. orable energy cycling and no loss 3 Block static pressure box air delivery hole and provide thermal 109 Chunlan a Typical case analysis insulation Case IV A user installed 11 sets of Chunlan FR260 S FR180 S and FR125 S air duct type air conditioners During test run it was found that heating effect was poor and highest air delivery temperature in rooms was only 28 C Measurement showed that current voltage and system pressure were all normal Analysis 1 Design of air return was not reasonable Air return ports provided were as small as half a book and in some rooms even no such port is provided 2 Fresh air port was normally open and not controlled by air damper 3 Room area space was too large Solution 1 Provide effective air return with sufficient area 2 Fabricate effective air damper to control fresh air port or block fresh air port 3 Increase number of air conditioning units or add auxiliary heating Case V A user installed 26 sets of Chunlan air duct type air conditioners in which 23 were FR260 S Now the user complains high noise in many units beyond what he can accept Analysis 1 All units adopt air duct return air to ensure efficiency Air delivery hose of each unit adopts 3 b 120mm round plastic air ducts and return air duct adopts 5 180mm round plastic air ducts Calculation shows that total air delivery area is 0 0989m less than 0 135 m recommended by instruction manual and total re
89. ote control receiver Remote control Check for normal remote control transmitter failure Check for normal remote controller Check for normal 3V batteries failure Check for normal transmitter Check for displaced or bad contact in conducting rubber Check for normal temperature sensor RTI Check for normal DC12V DCSV power supply No cooling function Check for reliable connection of output ports of compressor ID OD fans Check for main control board damage Check for normal temperature sensor RTI Check for normal DC12V DCSV power supply No heating function Check for reliable output port connection of compressor reversing valve D fans and OD fans Check for main control board damage Check for intact connection of outdoor unit wiring terminal Reversing valve i Check for damaged main control board failure Check for intact reversing valve Check for intact connection of indoor unit wiring terminal and damage of main control board Indoor fan failure Check for intact indoor fans Check for intact fan capacitors Check for intact connection of outdoor unit wiring terminal Check for damaged main control board Outdoor fan failure Check for intact outdoor fans Check for intact fan capacitor 3 FR180 S and FR260 S electric control protections and functions refer to contents of FRD95 and FRD125 S for electric heating type 102 Chunlan A Unit control objectives a Indoor fans
90. protection occurred on one of them Our Jinan service agent went on site for inspection Measurement showed that each parameter of power supply was normal After re poweron and operation for 2 hours E6 protection occurred again Later E2 and E7 protections occurred sometimes but after re poweron normal operation lasted for a period and no abnormity was found in voltage current or pressure Bizarre enough after swapping indoor outdoor main control boards and wire controllers of two units the same protections occurred on the same unit Analysis According to past maintenance experience main control board manufactured before 2002 and used in humid environment can cause such wrong protections sometimes Solution Replace with new indoor outdoor main control boards Case IX An installation company installed more than 10 air duct type air conditioners in Dafeng Jiangsu For commissioning when wire controller was plugged on it was found that wire controllers of several units displayed E5 protection and some even had no display After replacing with good wire controllers the same failure occurred This fault was not cleared after replacing main control board Analysis Bad connection on wire controller socket due to being covered by coating and paint used for room decoration Solution Use needle to remove covering material at wire controller socket and reconnect Case X 9 sets of FR260 S air duct type air conditioners were installed in a b
91. r outdoor connecting cable user supplied for compressor AC contactor coil L Indoor outdoor connecting cable user supplied power supply phase line N Indoor outdoor connecting cable user supplied power supply zero line 55 VA Chunlan a Circuit diagrams 5 FR100 B signal line terminals 1 Black Outdoors fan motor high speed 2 Purple Outdoors fan motor medium speed 3 Red Outdoors fan motor low speed 4 Gray Reversing valve coil 5 White Compressor AC contactor coil L Power supply connecting cable user supplied power phase line feedline N Power supply connecting cable user supplied power zero line feedline L Power supply connecting cable user supplied indoor outdoor connecting line power phase line N Power supply connecting cable user supplied indoor outdoor connecting line power zero line 6 FRD100 B signal line terminals 1 Indoor outdoor connecting cable user supplied outdoor fan motor high speed 2 Indoor outdoor connecting cable user supplied outdoor fan motor medium speed 3 Indoor outdoor connecting cable user supplied reversing valve coil 4 Indoor outdoor connecting cable user supplied compressor AC contactor coil L Indoor outdoor connecting cable user supplied power phase line N Indoor outdoor connecting cable user supplied power zero line 7 FR95 signal line terminals 1 Outdoor fan motor high speed 2 Power supply phase line 3 Reversing valve coil 4 Ou
92. rection of force OC OC O AR OX 94 VA Chun I an a Troubleshooting Chapter XII Troubleshooting I Failure codes Microprocessor based controller of this unit features troubleshooting and protection display functions Display code FRD23 B Failure category Dee FR D 7I B FR D 95 FR95 C FR D 180 S FR D 100 B FR D 125 S FR125 C S FR D 260 S FRD50 B High pressure protection EO EO Antifreeze protection El El El El i t m SE temp probe shor E2 E2 E p circuit ID pipe temp probe short circuit E3 E3 E3 E3 OD pipe temp probe short circuit E4 E4 E4 E4 Communication failure ES ES ES E5 Phase sequence protection E6 Overcurrent protection E7 Load relief protection E8 E8 E8 E8 Low pressure protection E9 In case of repeated protections of air conditioner cut off power supply and have failure corrected by specialty maintenance personnel before restarting the machine II Common troubleshooting In case of AC failure immediately cut off power supply Check the following before requesting maintenance Failure Causes Correction measures Power off Use when power is resumed Power not meeting requirement Check power supply before use Machine not operatin 5 Replace fuse or close circuit Molt B olten fuse or open C hes Machine operating at Clogged air strainer Clean air strainer
93. rectly connected with unit and no flexible hose connection is used causing unit vibration being transmitted by pipeline and excessive noise in conditioned area Solution Use 200mm 300mm long canvas 3 proof cloth or soft metal insulating tube between unit air 86 Y Chunlan a Air duct design amp noise reduction delivery return port and air delivery return hose for isolation of vibration Problem 2 Unreasonable design of air speed Careful design of air speed at air delivery return main duct branch duct and ports according to conditioned area noise requirement and unit air delivery static pressure is not carried out causing higher air speed and higher noise caused thereby Solution Design air duct and air port air speed according to national standard Product installation and operation manual and Chunlan hole commercial centralized air conditioning system design code Data in Tables 1 to 6 in this manual can be used for design reference slight deviations will not affect design Design and type selection of air ducts and air ports shall follow the following 3 steps 1 Roughly calculate air duct cross sectional area and areas of air delivery return ports according to unit rated air flow and suitable air speed 2 Reference National common ventilating air duct calculation table for preliminary determination of air duct size and dimensions reference manufacturer product samples for preliminary determin
94. roller displays E3 put nM probe broken wire for bad contact check for broken wire or short circuit NA it into operation after re powerup f short circuit in sensor if normal check if R6 on ID board is 10K OD pipe temp First check OD pipe temperature sensor connection Wire controller displays E4 put ue probe broken wire for bad contact check for broken wire or short circuit TP it into operation after re powerup f I short circuit in sensor if normal check if R5 on ID board is 10K Check for reliable welding on main control board CN6 and wire controller CN1 needle seat reliable insertion of cards and broken or short circuit of communication line In case of communication failure Check for DCI2V input on wire controller DC5V uM between main control board and output on main control board 7805 3 pin and DC5V Communication fail wire controller the latter displays on RGI 3 of wire controller ailure Check normal voltage on main control board 2003 driving block Check for normal voltage on crystal oscillator pin of main control board and wire controller Check for normal voltage at communication input output of main control board and wire controller 101 VA Chun I an a Troubleshooting Schedule of other common failures of FRD23 B FRD35 B FRD50 B FR D 95 FR D 125 S FR D 71 B and FR D 100 B air conditioner PCB board Failure phenomena Method of correction Check for normal rem
95. rt sometimes Carry out repair weld or replace shutoff valve and fill refrigerant after detection Excessive refrigerant that cannot be totally evaporated in evaporator causing lowered heat absorption capability and cooling effect Drain excess refrigerant Air mixed in system affecting heat exchange causing higher condensation pressure and lowered cooling effect Drain refrigerant re pump vacuum and fil new refrigerant 98 Chunlan Troubleshooting Phenomena Possible causes Correction method Damaged fan capacitor bad contact damaged fan motor or failure of fan power supply line causing indoor fan not operating or operating at lower speed hence no cold air out or poor cooling Check power line each switch temperature controller terminal board replace capacitor motor High low voltage or wrong power supply wiring or broken circuit causing compressor not operating or failure of compressor e g motor burnt down jammed damaged valve disc etc Use AC voltage regulator replace damaged parts Excessive cooling load Check expected cooling load Set temperature too high Lower set temperature Leaking refrigerant or closed shutoff valve clogged system Check and repair leakage or open shutoff valve Compressor failure connecting HP and LP etc Replace compressor Bad thermal insulation of indoor outdoor unit connecting pipe
96. ssor Chunlan Exploded view amp dismantling sequence of parts III Exploded view and dismantling sequence of indoor unit of FR D 71 B and FR D 100 B 1 Exploded view of indoor unit of FR D 71 B and FR D 100 B FR 1 B FRD 1 B Indoor unit FR100 B FRD100 B Exploded view of indoor unit of FR D 71 B and FR D 100 B Yi Chunlan Exploded view amp dismantling sequence of parts 2 Exploded view schedule of indoor unit of FR D 71 B and FR D 100 B Description Remark Air intake plate Top plate assembly Left support PTC electric heater Only for FRD71 B amp FRD100 B Spiral casing Impeller Left side plate assembly Evaporator assembly VO o IN o In A v N Condensate tray assembly Bottom plate assembly I Bottom plate assembly II Koch N Motor Koch LA Fan support plate ha Manger board assembly CA Right support an Right side plate assembly N Right small hole cover plate oo Electric box assembly 11 Yi Chunlan a Exploded view amp dismantling sequence of parts 3 Dismantling sequence of indoor unit of FR D 71 B and FR D 100 B 1 Remove 18 2 Remove 17 3 Remove 4 3 15 4 Remove 2 5 Remove 1 6 Remove 5 6 7 Remove 12 8 Remove 14 9 Remove 13 10 Remove 8 11 Remove 9 12 Remove 16 17 13 R
97. tdoor fan motor medium speed 5 Outdoor fan motor low speed 6 Power supply zero line 7 Compressor AC contactor coil 8 FR95 C and FRDOS signal line terminals 1 Outdoor fan motor high speed 2 Outdoor fan motor medium speed 3 Reversing valve coil 4 Compressor AC contactor coil 56 Chunlan L Power supply phase line N Power supply zero line 9 FR125 S signal line terminals 1 Outdoor fan motor high speed 2 3 phase power supply phase A 3 Reversing valve coil 4 Outdoor fan motor medium speed 5 Outdoor fan motor low speed 6 Power supply zero line 7 Compressor AC contactor coil 8 3 phase power supply phase B 9 3 phase power supply phase C 10 FR125 C S and FRD125 S signal line terminals 1 Outdoor fan motor high speed 2 Outdoor fan motor medium speed 3 Reversing valve coil 4 Compressor AC contactor coil N Power supply zero line L1 3 phase power supply phase A L2 3 phase power supply phase B L3 3 phase power supply phase C 11 FR D 180 S and FR D 260 S signal line terminal numbers and meanings A 6 core wire 1 Red Compressor small relay coil 2 Gray Reversing valve small relay coil 3 Purple Small relay coil of outdoor fan 1 4 Orange Small relay coil of outdoor fan 2 5 Brown DC 12V 6 White GND B 7 core wire 1 Red DC 5V 57 Circuit diagrams Chunlan Circuit diagrams 2 Gray Outdoors tube temperature sensor
98. te control reception window Temperature setting key Air speed setting key Functional key Power ON OFF key Power ON OFF key O When power is turned on power indicator red lights up and the unit is in stop status O Press power ON OFF key the unit will be in ventilating status high air flow and temperature is set at 22 C At this time use functional key to select operating status With unit in operating status press power ON OFF key will stop the unit and place it in standby status O After pressing power ON OFF key if power supply is interrupted and resumed the unit will be restored to the status before power interruption 2 Functional key O Press this key and the unit will cycle through following modes and displays SS xt 2 ds MARA Cooling Heating Ventilating red green orange v g Air speed setting key m 89 Yi Chunlan a Method of operation Low speed Medium High speed orange speed green a red m Timing key O After pressing this key indoor unit air delivery status will cycle as follows O When the air conditioner is in ON status you can select timed shutdown Before such shutdown press timing key to display remaining time in the display window temperature display will resume after 5s When the timing expires the air conditioner is shutdown and all display contents on wire controller vanish except for power supply indicator
99. turn air cross sectional area is 0 127 m also less than 0 3 m recommended by instruction manual Calculated air speed in air delivery branch hose and air return branch hose are 5 3 s and 4 15m s respectively By consulting tables noise level is apparently high 2 Unit installed on support angle steel by hard contact causes resonance and hard contact between metal air duct and ceiling running water pipe aggravates the resonance 3 Some indoor units are directly installed in operating environment e g ceiling of offices and rooms in which the units operate are too near sound sources hence higher noise Solution 1 Increase air delivery return branch hose cross sectional areas or number of such branch hoses so that sum of cross sectional area of air delivery return hoses meets instruction manual specification 2 Avoid hard contact at unit support faces add wood or rubber pads to isolate vibration 3 Rooms where air conditioners are used shall be at a longer distance from indoor unit outdoor unit and other sound sources if this is not feasible wrap a 5cm thick sound absorbing sponge plus plastic cloth on indoor unit except air return port Case 6 A user installed two sets of FR180 S air duct type air conditioners early 2003 These share an air system In summer of the year it was found that cooling effect was not good and room temperature cannot be brought under 26 C Analysis Measurement showed that one unit was not operating and
100. y return space shall be available to facilitate air delivery return Distance between main unit air return face and wall shall exceed 800mm to ensure no right angle bend of return air O Drainage of indoor unit condensate shall be provided O Keep the machine away from heat source inflammables corrosive gas strong magnetic field dust and heavy oily smoke 2 Indoor unit installation dimensions Refer to the following figure and table for indoor unit installation dimensions FRD23 B FRD35 B FRD50 B Parameter a mm b mm c mm d mm e mm f mm g mm h mm Model FRD23 B FRD35 B 252 ane ies 128 234 Jak 190 465 FRD50 B 1088 922 950 67 Y Chun I an x Installation FR D 95 FR D 125 S a mm b mm c mm d mm emm FR D 95 655 300 698 400 618 FR D 125 S 865 330 ous 4 20X10 FR D 71 B FR D 100 B Code Model a mm b mm c mm d mm e mm FR D 71 B 1200 22 ss 1160 1230 FR D IOO B 1820 1780 1850 68 Chunlan Installation FR D 180 S FR D 260 S Code A mm B mm C mm D mm E mm F mm Model FR D 180 S 1309 300 654 1352 618 400 FR D 260 S 1800 330 888 1843 69 VA C h un l an fr Installation 3 Installation mode for Indoor unit 1 Installation mode for F

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