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Airwell YAF018, Service Manual

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Airwell YAF018 Service Manual Download Page 55

12-24

CONTROL SYSTEM

SM HAFRPM 2-A.1 GB

12.8.3     High pressure protection (excluding RH Group) 

Mode:  (Auto) Heating 

Fan: Any 

Timer: Any 

I Feel:  On or Off 

Control Function

Protect the Compressor from high pressure by switching OFF the OFAN and COMP. 

ICT [

o

c]

Any

Off

Any

Off

COMP

OFAN

52

55

61

66

COMP is forced OFF

67

OFAN is force

Off

ON

BLINK

OPER

LED

Notes:

1.  IFAN, HE1 and HE2 will be activated according to the relevant Heating Mode Sect. 

2.  In case of any malfunction in the relay control circuit, the OCT is also monitored 

during Heating mode.    Whenever OCT reaches 70

o

c, which indicates a high 

pressure in the outdoor coil, the COMP will be forced off automatically.    The COMP 

can be turned on again only after the 3 min COMP ON delay and the OCT is under 

70

o

c.    The OPER LED will not blink in this case. 

Summary of Contents for YAF018

Page 1: ...HAF Series Indoor Units Outdoor Units HAF 18 YAF018 HAF 24 GCN 24 Service Manual SM HAFRPM 2 A 1 GB FEBRUARY 2010 REFRIGERANT R410A HEAT PUMP COOLING ONLY ...

Page 2: ...and changed pages are Original 0 February 2009 Total number of pages in this publication is 72 consisting of the following Page No Revision No Page No Revision No Page No Revision No Title 1 A 1 i 1 1 1 1 2 1 2 1 2 2 1 3 1 1 4 1 4 2 1 5 1 5 12 1 6 1 6 2 1 7 1 1 8 1 8 2 1 9 1 1 10 1 10 2 1 11 1 1 12 1 12 30 1 13 1 13 2 1 14 1 14 7 1 Appendix A 1 Zero in this column indicates an original page Due to...

Page 3: ...INE DIMENSIONS 4 1 5 PERFORMANCE DATA PRESSURE CURVES 5 1 6 SOUND LEVEL CHARACTERISTICS 6 1 7 ELECTRICAL DATA 7 1 8 WIRING DIAGRAMS 8 1 9 ELECTRICAL CONNECTIONS 9 1 10 REFRIGERATION DIAGRAMS 10 1 11 TUBING CONNECTIONS 11 1 12 CONTROL SYSTEM 12 1 13 TROUBLESHOOTING 13 1 14 EXPLODED VIEWS AND SPARE PARTS LISTS 14 1 15 APPENDIX A 15 1 ...

Page 4: ... to the indoor unit from 4 different optional directions Easy installation and service 1 3 Indoor Unit The indoor unit is wall mounted and can be easily fitted to many types of residential and commercials applications It includes Casing with air inlet and outlet grills A large diameter tangential fan Bended coil with treated aluminum fins Advanced electronic control box assembly Interconnecting wi...

Page 5: ...proofed compartment Axial fan Outdoor coil with hydrophilic louver fins for RC units Outlet air fan grill Service valves flare type connection Interconnecting wiring terminal block Fresh air motor for HAF optional 1 6 Tubing Connections Flare type interconnecting tubing can be produced on site For further details please refer to the Installation Manual Appendix A 1 7 Accessories Remote Control 1 8...

Page 6: ...age dimensions WxHxD mm 1125X360X295 Packaged weight kg 17 Units per pallet units 14 Stacking height units 7 OUTDOOR Refrigerant control Capillary tube Compressor type model Rotary TOSHIBA PA200X2CS 4KT1 Fan type quantity Propeller direct x 1 Fan speeds H RPM 910 Air flow H m3 hr 2160 Sound power level H dB A 64 65 Sound pressure level 3 H dB A 53 54 Dimensions WxHxD mm 795X610X290 Net Weight kg 4...

Page 7: ... kg 15 Package dimensions WxHxD mm 1125X360X295 Packaged weight kg 18 Units per pallet units 16 Stacking height units 8 OUTDOOR Refrigerant control Capillary tube Compressor type model Rotary Fan type quantity Propeller direct x 1 Fan speeds H RPM 850 Air flow H m3 hr 3100 Sound power level H dB A 67 Sound pressure level 3 H dB A 59 Dimensions WxHxD mm 900X680X340 Net Weight kg 78 Package dimensio...

Page 8: ... 14511 Cooling Indoor 27o C DB 19o C WB Outdoor 35 o C DB Heating Indoor 20o C DB Outdoor 7o C DB 6o C WB 3 1 Operating Limits 3 1 1 R410A Indoor Outdoor Cooling Upper limit 32o C DB 23o C WB 46o C DB Lower limit 21o C DB 15o C WB 10o C DB Heating Upper limit 27o C DB 24o C DB 18o C WB Lower limit 10o C DB 15o C DB 10o C WB Voltage 198 264 V ...

Page 9: ...4 1 OUTLINE DIMENSIONS SM HAFRPM 2 A 1 GB 4 OUTLINE DIMENSIONS 4 1 Indoor Unit HAF 18 HAF 24 4 2 Outdoor Unit YAF018 ...

Page 10: ...4 2 OUTLINE DIMENSIONS SM HAFRPM 2 A 1 GB 4 3 Outdoor Unit GCN 24 ...

Page 11: ...5 76 6 03 6 24 SC 3 72 3 98 4 21 4 14 4 24 PI 1 35 1 36 1 37 1 38 1 39 30 TC 4 77 5 14 5 55 5 76 5 97 SC 3 53 3 81 4 12 4 04 4 20 PI 1 46 1 48 1 50 1 51 1 51 35 TC 4 40 4 77 5 24 5 50 5 71 SC 3 33 3 62 3 96 3 91 4 07 PI 1 58 1 60 1 63 1 64 1 65 40 TC 3 98 4 35 4 82 5 08 5 29 SC 3 09 3 40 3 74 3 68 3 86 PI 1 70 1 73 1 76 1 78 1 79 46 TC 3 46 3 83 4 30 4 56 4 77 SC 2 81 3 12 3 51 3 44 3 60 PI 1 87 1...

Page 12: ...15 6 41 1 50 6 25 1 62 6 10 1 72 20 6 76 1 55 6 60 1 68 6 41 1 81 LEGEND TH Total Heating Capacity kW PI Power Input kW WB Wet Bulb Temp o C DB Dry Bulb Temp o C ID Indoor OD Outdoor 5 1 3 Capacity Correction Factor Due to Tubing Length Cooling TOTAL TUBING LENGTH 3m 7 5m 10m 15m 20m 25m 30m 40m 50m 1 02 1 0 98 0 97 Minimum recommended tubing length between indoor and outdoor units is 3m Heating T...

Page 13: ...RE CURVES SM HAFRPM 2 A 1 GB 5 2 Model HAF 18 YAF018 5 2 1 Cooling LVFKDUJH 3UHVVXUH 96 2XWGRRU 7HPS 2XWGRRU 7HPS R LVFKDUJH 3UHVVXUH DU J 嘙 嘙 嘙 嘙 嘙 6XFWLRQ 3UHVVXUH 96 2XWGRRU 7HPS 2XWGRRU 7HPS R 6XFWLRQ 3UHVVXUH DU J 嘙 嘙 嘙 嘙 嘙 ...

Page 14: ...ANCE DATA PRESSURE CURVES SM HAFRPM 2 A 1 GB 5 2 2 Heating LVFKDUJH 3UHVVXUH 96 2XWGRRU 7HPS 2XWGRRU 7HPS R LVFKDUJH 3UHVVXUH DU J 嘙 嘙 嘙 6XFWLRQ 3UHVVXUH 96 2XWGRRU 7HPS 2XWGRRU 7HPS R 6XFWLRQ 3UHVVXUH DU J 嘙 嘙 嘙 ...

Page 15: ...CURVES 5 3 1 Model HAF 18 YAF018 Cooling Discharge Pressure VS Outdoor Temp 10 0 20 0 30 0 40 0 15 20 25 30 35 40 46 Outdoor Temp o C DB Discharge Pressure Bar Suction Pressure VS Outdoor Temp 5 0 7 0 9 0 11 0 15 20 25 30 35 40 46 Outdoor Temp o C DB Suction Pressure Bar ...

Page 16: ...2 Model HAF 18 YAF018 Heating Discharge Pressure VS Outdoor Temp 10 0 20 0 30 0 40 0 10 7 2 2 6 10 15 20 Outdoor Temp o C WB Discharge Pressure Bar Suction Pressure VS Outdoor Temp 2 0 4 0 6 0 8 0 10 0 10 7 2 2 6 10 15 20 Outdoor Temp o C WB Suction Pressure Bar ...

Page 17: ... 4 51 4 78 5 04 5 19 5 29 PI 1 76 1 78 1 79 1 80 1 81 30 TC 6 11 6 65 7 19 7 44 7 66 SC 4 37 4 64 4 93 5 08 5 17 PI 1 90 1 93 1 95 1 96 1 98 35 TC 5 66 6 14 6 77 7 11 7 45 SC 4 15 4 45 4 82 4 96 5 06 PI 2 05 2 09 2 12 2 14 2 15 40 TC 5 14 5 60 6 11 6 68 7 02 SC 3 91 4 21 4 56 4 70 4 80 PI 2 21 2 25 2 29 2 31 2 34 46 TC 4 46 4 88 5 37 5 93 6 39 SC 3 60 3 86 4 16 4 30 4 40 PI 2 42 2 45 2 51 2 55 2 5...

Page 18: ...15 8 11 2 15 7 91 2 32 7 71 2 47 20 8 54 2 22 8 34 2 40 8 11 2 59 LEGEND TH Total Heating Capacity kW PI Power Input kW WB Wet Bulb Temp o C DB Dry Bulb Temp o C ID Indoor OD Outdoor 5 4 3 Capacity Correction Factor Due to Tubing Length Cooling TOTAL TUBING LENGTH 3m 7 5m 10m 15m 20m 25m 30m 40m 50m 1 02 1 0 98 0 95 Minimum recommended tubing length between indoor and outdoor units is 3m Heating T...

Page 19: ...RE CURVES SM HAFRPM 2 A 1 GB 5 5 Model HAF 24 GCN 24 5 5 1 Cooling LVFKDUJH 3UHVVXUH 96 2XWGRRU 7HPS 2XWGRRU 7HPS R LVFKDUJH 3UHVVXUH DU J 嘙 嘙 嘙 嘙 嘙 6XFWLRQ 3UHVVXUH 96 2XWGRRU 7HPS 2XWGRRU 7HPS R 6XFWLRQ 3UHVVXUH DU J 嘙 嘙 嘙 嘙 嘙 ...

Page 20: ...MANCE DATA PRESSURE CURVES SM HAFRPM 2 A 1 GB 5 5 2 Heating LVFKDUJH 3UHVVXUH 96 2XWGRRU 7HPS 2XWGRRU 7HPS R LVFKDUJH 3UHVVXUH DU J 嘙 嘙 嘙 6XFWLRQ 3UHVVXUH 96 2XWGRRU 7HPS 2XWGRRU 7HPS R 6XFWLRQ 3UHVVXUH DU J 嘙 嘙 嘙 ...

Page 21: ...CURVES 5 6 1 Model HAF 24 GCN 24 Cooling Discharge Pressure VS Outdoor Temp 10 0 20 0 30 0 40 0 15 20 25 30 35 40 46 Outdoor Temp o C DB Discharge Pressure Bar Suction Pressure VS Outdoor Temp 5 0 7 0 9 0 11 0 15 20 25 30 35 40 46 Outdoor Temp o C DB Suction Pressure Bar ...

Page 22: ...2 Model HAF 24 GCN 24 Heating Discharge Pressure VS Outdoor Temp 10 0 20 0 30 0 40 0 10 7 2 2 6 10 15 20 Outdoor Temp o C WB Discharge Pressure Bar Suction Pressure VS Outdoor Temp 2 0 4 0 6 0 8 0 10 0 10 7 2 2 6 10 15 20 Outdoor Temp o C WB Suction Pressure Bar ...

Page 23: ...C40 NC45 NC50 NC55 NC60 NC65 0 10 20 30 40 50 60 70 80 90 63 125 250 500 1000 2000 4000 8000 Octave Band Center Frequencies Hz Octave Band Sound Pressure Level dB re 20 mPa Noise spectrum NC Curves NC15 NC20 NC25 NC30 NC35 NC40 NC45 NC50 NC55 NC60 NC65 0 10 20 30 40 50 60 70 80 90 63 125 250 500 1000 2000 4000 8000 Octave Band Center Frequencies Hz Octave Band Sound Pressure Level dB re 20 mPa 1m ...

Page 24: ...UND LEVEL CHARACTERISTICS SM HAFRPM 2 A 1 GB 6 3 Outdoor units 6 4 Sound Pressure Level Spectrum Measured as Figure 2 YAF 018 Cooling YAF 018 Heating GCN 24 Cooling GCN 24 Heating 1m Mic Unit Ground Figure 2 ...

Page 25: ...5 20 Power Supply Wiring No X Cross Section mm2 3x1 5 mm2 3x2 5 mm2 Interconnecting Cable RC Model No X Cross Section mm2 5x1 5 mm2 2x0 5 mm2 OCT senser 6x1 5 mm2 2x0 5 mm2 OCT senser 5x2 5 mm2 2x0 5 mm2 OCT senser 6x2 5 mm2 2x0 5 mm2 OCT senser Interconnecting Cable ST Model No X Cross Section mm2 4x1 5 mm2 5x1 5 mm2 4x2 5 mm2 5x2 5 mm2 NOTE Power wiring cord should comply with local lows and ele...

Page 26: ...8 1 WIRING DIAGRAMS SM HAFRPM 2 A 1 GB 8 WIRING DIAGRAMS 8 1 Indoor Unit HAF 18 HAF 24 8 2 Outdoor Unit YAF 018 ...

Page 27: ...CAT N 433782 REV 04 POWER SUPPLY BY INSTALLER 1PH 230V 50Hz 3X4 CABLES BETWEEN INDOOR AND OUTDOOR UNIT A 6x1 5 B 2x0 5 IMPORTANT BEFORE CONNECTING THE FH REMOVE THE WIRE BETWEEN 2 TABs OCT OUT 8 9 1 6 5 2 N INSTALLER BLU GND 8 9 Y G OCT IN IN CASE OF ASK KIT CONNECTION TO THE UNIT DO NOT CONNECT WIRE BETWEEN UNITS IN CONNECTION 6 N COMPRESSOR N L 6 5 4 A B 3 4 1 6 5 2 HEAT 1 2 ALL SEASON KIT RV FO...

Page 28: ...9 1 ELECTRICAL CONNECTIONS SM HAFRPM 2 A 1 GB 9 ELECTRICAL CONNECTIONS 9 1 HAF 18 HAF 24 ...

Page 29: ...E Service Outdoor coil Sensor Capillary tube Strainer Check valve OUTDOOR UNIT valve Reverse tube Capillary Compressor Outdoor coil Sensor tube Capillary Reverse Strainer valve Compressor tube Capillary Check valve OUTDOOR UNIT INDOOR UNIT Flared connection Valves port Indoor coil Sensor INDOOR UNIT connection Flared Valves port Indoor coil Sensor ...

Page 30: ...ERATION DIAGRAMS Service Manual ALPHA 10 2 Cooling Only Models 10 2 1 HAF 18 HAF 24 Outdoor coil Strainer Capillary tube Compressor Service port OUTDOOR UNIT connection Valves Flared Indoor coil Sensor INDOOR UNIT ...

Page 31: ...1 13 11 13 1 Valve Protection Cap end 2 Refrigerant Valve Port use Allen wrench to open close 3 Valve Protection Cap 4 Refrigerant Valve 5 Service Port Cap 6 Flare Nut 7 Unit Back Side 8 Copper Tube When the outdoor unit is installed above the indoor unit an oil trap is required every 5m along the suction line at the lowest point of the riser Incase the indoor unit is installed above the outdoor n...

Page 32: ...lowing groups of air conditioners ST RC Group Cooling only cooling and heating by heat pump SH Group Cooling and heating by heat pump and supplementary heater RH Group Cooling heating by heaters only 12 1 2 Jumpers Settings 0 Open Jumper disconnect jumper 1 Close Jumper connect jumper Self test Jumper J1 OPERATION J1 SELF TEST 1 NORMAL 0 Group Jumper J2 J6 GROUP J2 J6 ST 1 0 RC 0 0 SH 0 1 RH 1 1 ...

Page 33: ...T2 sensor IF IFAN Indoor Fan IR Infra Red LEVEL1 Normal Water Level LEVEL2 3 Medium High Water Level LEVEL4 Overflow Level Max Maximum Min Minimum min Minute time NA Not Applicable OCP Outdoor Condensation Pump OCT Outdoor Coil Temperature RT3 sensor OF OFAN Outdoor Fan OPER Operate Para Paragraph RAT Return Air Temperature RT1 sensor RC Reverse Cycle Heat Pump R C Remote Control RCT Remote Contro...

Page 34: ... of A C Groups The following table defines the different A C groups and the applicable operation modes for each group Operating Mode ST RH RC SH Fan Yes Yes Yes Yes Cool 3 Yes Yes Yes Yes Heat 3 No Yes 1 Yes Yes 2 Dry 3 Yes Yes Yes Yes Auto Cool Heat 3 No Yes 1 Yes Yes 2 Notes 1 Heating is done by electric heaters 2 Heating is done by Compressor Heat Pump and by electric heaters ...

Page 35: ...ignored 12 3 2 IFAN operation Min time interval between IFAN speed change in AUTOFAN Mode is 30 sec Min time interval between IFAN speed change in H M L Mode is 1 sec IFAN speed in Heat Cool Autofan Mode is determined according to the following table T IFAN Speed T t 2 HIGH 2 t T t 1 MED 1 t T LOW Where In Heat Mode T SPT RT In Cool Mode T RT SPT Note 1 In Heat Mode the rules in section 4 0 3 have...

Page 36: ...rn air Temp is detected by RAT RT1 in normal Mode or by RCT R C s I FEEL Mode Indoor Coil Temp is detected by ICT RT2 Outdoor Coil Temp is detected by OCT RT3 Similarly in the Indoor Units of a WMQ T system 4 7k Ohm 5 resistors must be co the OCT ports to disable the Thermistor Temp reading doesn t change error checkin Definition of thermistor faults a Thermistor is disconnected The thermistor rea...

Page 37: ...o that the unit can continue the normal operation All protections related to that faulty thermistor will be disabled For example in case of any ICT fault the ICT high pressure protection in Heat Mode and ICT defrost protection in Cool Mode will not operate anymore The same is also applied to the OCT fault There is an EEPROM option that when the OCT thermistor is not connected the buzzer will be ON...

Page 38: ... is cleared by a change in OCT This faults can also be cleared by switching the unit from STBY mode to operate mode or when the unit is reset e g reset by power interrupt 12 4 COOLING MODE 12 4 1 Cooling Mode General a Room Temperature RT is detected by x RAT in normal operation or x RCT R C sensor in I FEEL mode b The resolution of RT is 1o c x RT is activating COMP if RT SPT and x RT is stopping...

Page 39: ... or Off Control function Maintains room temp at desired level by comparing RT and SPT RT SPT o c 3 2 1 0 1 2 ON OFF ON OFF USER FAN SPEED ON OFF COMP OFAN IFAN RV Note 1 IFAN is always running at High Medium or Low speed selected by user 2 In IFEEL mode the Room Temperature RT is the RCT from a R C Otherwise the RT is the RAT from the Room Thermistor ...

Page 40: ...fan Mode Cool Auto at cooling Temp Selected desired temperature Fan Auto Timer Any I Feel On or Off Control function Maintains room temp at desired level and controls the IFAN speed for opt comfort RT SPT o c 3 2 1 0 1 2 ON OFF ON OFF H L M ON OFF COMP OFAN IFAN RV ...

Page 41: ...roups when COMP is ON excluding protection modes IFAN will be switched ON if x ICT 35o c or x at the 30 second 4 after the COMP is switched ON In this case the IFAN will be started at low speed 5 IFAN Speed Any Low Stop 30 35 40 ICT o c Notes 1 In SH or RC group if HE is set to OFF due to low ICT IFAN will be switched to LOW and will be turned OFF after 30 sec 2 An exception to this rule is the Ba...

Page 42: ... stops 4 HE operation a For all Groups HE can be ON only when IFAN is ON b For all Groups HE switches to OFF when ICT 50 o c and is activated again when ICT d 45o c c In SH or RC group HE operation is limited by the following graph HE ON OFF 30 45 50 ICT oc 15 General For WAX 35 20 40 d Back up mode for SH group After COMP has been working for 5 minutes HE IFAN are activated even if the ICT is sti...

Page 43: ... Auto at heating Temp Selected desired temperature Fan HIGH MED LOW Timer Any I Feel On or Off Control function Maintains room temp at desired level by comparing RAT or RCT to SPT RT SPT o c 2 1 0 1 2 3 ON OFF ON OFF H M L OFF L ON OFF Note 1 Note 2 COMP WVL HE1 HE2 IFAN ON OFF RV ...

Page 44: ...an Mode Heat Auto at heating Temp Selected desired temperature Fan Auto Timer Any I Feel On or Off Control function Maintains room temp at desired level by controlling COMP IFAN and OFAN RT SPT o c 2 1 0 1 2 3 ON OFF ON OFF H OFF L M ON OFF Note 1 Note 2 COMP HE1 HE2 IFAN RV ON OFF ...

Page 45: ...NTROL SYSTEM SM HAFRPM 2 A 1 GB Note OFAN operation is controlled by the graph below when 1 RAT t SPT 2o c AND 2 ICT t 45o c AND 3 COMP is ON Otherwise OFAN runs together with COMP OCT o c 3 2 1 0 1 OFAN ON OFF ...

Page 46: ...speed The proper Auto Heat mode or Auto Cool will be started whenever the RT reaches SPT 1o c or SPT 1o c respectively 4 For RC SH units Mode change between Auto Heat Auto Cool Modes are possible only after the COMP has been OFF during the last T minutes Mode Change time T Auto Cool to Auto Heat 3 min Auto Heat to Auto Cool 4 min 5 When unit is changed form Cool Dry mode to Auto Mode the unit will...

Page 47: ...r Any I Feel On or Off Control function Maintains room temp at desired level by selecting between cooling and heating modes RT SPT o c 3 2 1 0 1 2 3 ON OFF ON OFF H M L OFF L OFF ON OFF ON OFF COMP OFAN HE1 HE2 IFAN RV H M L OFF L OFF USER FAN SPEED H M L OFF L OFF Auto Cool Mode Auto Heat Mode 4 min 3 min 3 min 2 min 3 3 4 4 5 Auto Heat Mode ...

Page 48: ...ed IFAN DRY RT SPT o c 2 1 0 1 2 ON OFF ON OFF LOW OFF DRY ON DRY OFF ON OFF Time min 10 20 30 40 50 Max 15 minutes 3 5 min Note1 6 min Note 2 COMP OFAN HE1 HE2 IFAN RV Max 15 minutes 5 minutes COMP ON time Notes 1 When Dry is ON the COMP is forced OFF for 3 5 min longer than the 3 min Min COMP Off time after every 15 min of continuous COMP operation 2 When Dry is OFF the COMP is forced ON for 6 m...

Page 49: ...ed from ON to OFF or vice versa the limits mentioned in 1 2 are ignored The COMP operation is only controlled by the 3 min Min OFF time and 1 min Min ON time 4 In Dry Mode IFAN is LOW when COMP is ON and is OFF when COMP is OFF 5 HEs are always OFF in Dry Mode ...

Page 50: ...umidity with minimum Temp fluctuations by operating in Cool Mode with low speed IFAN and HE RT SPT o c 2 1 0 1 2 ON OFF ON OFF LOW OFF ON OFF 10 20 30 40 50 COMP OFAN HE1 IFAN HE2 ON OFF RV Time min Notes 1 HP and Defrost protections are the same as in Cool Mode 2 IFAN is operating continuously at low speed 3 For MBX model HE1 and HE2 will be activated simultaneously as the HE1 above ...

Page 51: ...d temp Fan Any Timer Any I Feel On or Off Control Function Protect the indoor coil from ice formation at low ambient temperature ICT oc 2 ON OFF ON OFF t1 t2 t3 COMP OFAN 1 5 14 0 1 ON OFF IFAN t1 t1 5 min minimum for each COMP starting t2 OFAN cycling alternate between ON and OFF every 30 sec for 20 min maximum t3 COMP and OFAN stop for 10 min minimum ...

Page 52: ... Blink O N C O M P O FAN IFA N O PE R LED H PC 1 L C O M P is forced O FF O FAN is forced O N IFAN forced to LO W 68 O FAN follow operation of C O M P H PC 2 H PC 3 H PC 4 Note 1 The ICT is also monitored during Cool and Dry mode in case the RV control circuit is faulty Whenever ICT reaches 70o c which indicates a high pressure in the indoor coil the COMP will be forced off automatically The COMP ...

Page 53: ...n by controlling COMP RV operation Scope This new deicer is designed to operate at extreme temp conditions The deicing cycle could be triggered from 1 OCT temp and time between two consecutive deicing cycles 2 Detection of ice forming by change of the OCT temp Both algorithms adjust the time between deicing cycles to optimize the A C performance The algorithm will automatically increase the time b...

Page 54: ...RC or WAX units HEs are forced OFF IFAN is forced to Low Speed BLINK ON OPER LED Notes 1 In the following Deicing cycles the time interval between two Deicing cycles activation is between 30 to 80 min 2 For RC group HEs are forced OFF IFAN operation is as in Heat Mode Sect 4 0 3 a i e IFAN will be set to OFF when ICT 30o c For WAX the IFAN is simply forced OFF 3 For SH group HEs are forced ON and ...

Page 55: ...orced OFF 67 OFAN is force Off ON BLINK OPER LED Notes 1 IFAN HE1 and HE2 will be activated according to the relevant Heating Mode Sect 2 In case of any malfunction in the relay control circuit the OCT is also monitored during Heating mode Whenever OCT reaches 70o c which indicates a high pressure in the outdoor coil the COMP will be forced off automatically The COMP can be turned on again only af...

Page 56: ... blinked to indicate the situation The LED keeps blinking until the timer settings can be reloaded from a R C message Note If all timers are inactive the system will not be forced OFF after the power failure The last OPER STBY status will be loaded from the EEP instead 3 When the A C receives any valid message from a R C the current ON OFF timer settings will be replaced by the new timer settings ...

Page 57: ...after a power interrupt 2 An ELCON will enter I FEEL Mode automatically when it receives any I FEEL data from any R C 3 If an ELCON is in I FEEL Mode and no I FEEL data has been received from the R C for more than 4 min 6 min for RC4 short IFEEL messages the I FEEL mode would be suspended And the temp is replaced by the RAT from the local thermistor As soon as a new I FEEL data is received from th...

Page 58: ...en the mode button on the Display Board is used to switch the unit to Cool or Heat mode 3 The IFAN is always set to Autofan Speed in forced operation 12 12 SLEEP Mode Any Temp Set desired temperature selected Fan Any Timer Interact with Sleep Timer as described in sect 12 2 I Feel On or Off The Sleep mode is activated by using the sleep button on the R C In Sleep Mode the unit will automatically a...

Page 59: ...gative from 0 to 3o c 3 In other modes there is no SPT adjustment 4 The SPT adjustment is cancelled when the Sleep mode is cancelled SPT Time Hr 4 8 5 3 2 6 Start Sleep 7 RT SPT 1 SPT 2 SPT 3 SPT 2 SPT 1 SPT 3 1 7 Hours Sleep operation for Normal Sleep Mode Unit is turned to SB after Sleep Cool Dry modes Heat mode Note If Off timer is active the unit may go to SB before or after 7 hours of sleep o...

Page 60: ... SB at the 7th hour the A C will work until reaching the Off time Case 3 is an exception to case 2 The Sleep Mode will not be extended to the Off Time when the Off Timer is preceded by an On Timer which is also between 7 12 hour Oper Time Hr 4 8 10 12 2 6 Start Sleep 7 Case 1 Standard Sleep Mode Condition Off timer is not set or is beyond 12 hour SB Oper Time Hr 4 8 10 12 2 6 Start Sleep 7 Case 2 ...

Page 61: ...s during Water Over Flow in MBX P2000 models COOLING INDICATOR 1 Lights up when system is switched to Cool Mode by using the Mode Switch on the unit 2 Show the thermistor status in Diagnostic Mode HEATING INDICATOR 1 Lights up when system is switched Heat Mode by using the Mode Switch on the unit 2 Show the thermistor status in Diagnostic Mode MODE BUTTON Cool Heat SB 1 Use to cycle the operation ...

Page 62: ...roller 5 Indoor fan works when unit is OFF and indoor fan speed is not changed by remote control command PCB problem Replace controller 6 Compressor does not start Electronics control problem or protection Perform diagnostics and follow the actions described below 7 Compressor stops during operation and Green LED remains on Electronic control or power supply problem Perform diagnostics and follow ...

Page 63: ...s present Wrong phase order to compressor Check compressor phase order 13 Water leakage from indoor unit Indoor unit drainage tube is blocked Check and open drainage tube 14 Freezing of outdoor unit in HEAT Mode and outdoor unit base is blocked with ice Connect base heater 15 Unit operates with wrong fan speeds or wrong frequency Wrong jumper settings Perform diagnostics to obtain unit model or if...

Page 64: ...14 1 EXPLODED VIEWS AND SPARE PARTS LISTS SM HAFRPM 2 A 1 GB 14 EXPLODED VIEWS AND SPARE PARTS LISTS 14 1 Indoor Unit HAF 18 HAF 24 ...

Page 65: ...rtical Flap A 12 10 465160017 Vertical Flap B 2 11 4518662 Bearing assy fan 1 12 453024900 Impeller fan 1 13 465700011 Unit Housing Assy 1 14 452920100 Mount bracket 1 15 465320017 Connect Plate Unit housing 1 16 453116500R Resin Motor 1 17 452918800 Cover motor 1 18 453050300 STEP MOTOR B 1 19 455013404R Power Cord 3G 2 5 2100 Israel Market 1 19 455013707R Power Cord Without Plug 3G 2 5 2100 Euro...

Page 66: ... Vertical Flap A 12 10 465160017 Vertical Flap B 2 11 4518662 Bearing assy fan 1 12 453024900 Impeller fan 1 13 465700011 Unit Housing Assy 1 14 452920100 Mount bracket 1 15 465320017 Connect Plate Unit housing 1 16 453134300R Resin Motor 1 17 452918800 Cover motor 1 18 453050300 STEP MOTOR B 1 19 455013404R Power Cord 3G 2 5 2100 Israel Market 1 19 455013707R Power Cord Without Plug 3G 2 5 2100 E...

Page 67: ...14 4 EXPLODED VIEWS AND SPARE PARTS LISTS SM HAFRPM 2 A 1 GB 14 4 Outdoor Unit YAF 018 ...

Page 68: ...07 Cable clip Nylon 1 15 453012700 Electric Panel 1 16 4520171R Fan Motor 1 17 4527203 Motor Support 1 18 463600000 Capillary Assy 1 19 4510677 Nut With Flange M8 3 20 391498 Wire assy 1 21 460000000 Compressor Assy GMCC PA200X2CS 4KT1 1 22 469270002 Insulation Rub Felt Compressor 1 24 467400054 OCT Outdoor Coil Temperature Sensor 1 25 461600001 4 Way Valve Assy 1 26 4520071 4 W valve coil for R41...

Page 69: ...14 6 EXPLODED VIEWS AND SPARE PARTS LISTS SM HAFRPM 2 A 1 GB 14 6 Outdoor Unit GCN 24 Optional ...

Page 70: ...4 AXIAL FAN D493x143 1 9 434211 Replace by SP000000266 MOTOR BRACKET 1 10 433281 SIDE GUARD OU7 24 R410A 1 11 436358 TRANSPORT HANDLE CUE 1 12 439342 MOTOR BASE OU7 1 14 438795 COMPRESSOR GP270PAA 1 15 433934 CAPILLARY HEATING ASSY OU7 24 R410A 1 16 433660 TUBING ASSY OU7 24C R410A 1 17 413496 BOARD TPHN 5F RoHS 1 18 442007 CAPACITOR 6uF 400V 1 19a 434716 THERMISTOR L1050 for coil 1 20 442038 CAPA...

Page 71: ...15 1 APPENDIX A SM HAFRPM 2 A 1 GB APPENDIX A INSTALLATION AND OPERATION MANUAL INSTALLATION AND OPERATION MANUAL HAF 18 HAF 24 ...

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