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7-28

CONTROL SYSTEM

Revision Y05-01

Service Manual - EMD Series

7.2.2.

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

COMP is forced OFF

For all models except WAX

For WAX model

ON

BLINK

OPER

LED

Содержание EMD 27

Страница 1: ...EMD series REFRIGERANT R22 R407C HEAT PUMP COOLING ONLY JULY 2005 Indoor Units Outdoor Units EMD 27 OU6 27 EMD 35 OU8 33 EMD 40 OU10 38 EMD 45 OU10 44 EMD 50 OU10 50 EMD 60 OU12 60 Service Manual...

Страница 2: ...d by chapters Dates of issue for original and changed pages are Original 0 July 2005 Total number of pages in this publication is 109 consisting of the following Page No Revision No Page No Revision N...

Страница 3: ...D Series Table of Contents 1 FEATURES 1 1 2 PRODUCT DATA SHEET 2 1 3 RATING CONDITIONS 3 1 4 OUTLINE DIMENSIONS 4 1 5 WIRING DIAGRAMS 5 1 6 REFRIGERATION DIAGRAMS 6 1 7 CONTROL SYSTEM 7 1 8 TROUBLESHO...

Страница 4: ...r coil reaches adequate temperature This HOT KEEP feature prevents uncomfortable cold air drafts AUTO FAN Is therefore recommended to be used when the air conditioner is in HEATING mode HOT KEEP Switc...

Страница 5: ...s memory This feature may be easily canceled by the user from the display panel BUZZER The air conditioner can be turned ON for COOLING or HEATING or be turned OFF directly from the indoor unit displ...

Страница 6: ...H D mm 825 425 610 Package weight Kg 34 Units per pallet Units 8 INDOOR Stacking height Units 4 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 1 Fan speeds H L RPM 9...

Страница 7: ...Kg 34 Units per pallet Units 8 INDOOR Stacking height Units 4 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 1 Fan speeds H L RPM 920 Air flow H L M Hr 2350 Sound po...

Страница 8: ...Package weight Kg 38 Units per pallet Units 8 INDOOR Stacking height Units 4 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 1 Fan speeds H L RPM 850 Air flow H L M...

Страница 9: ...Kg 38 Units per pallet Units 8 INDOOR Stacking height Units 4 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 1 Fan speeds H L RPM 850 Air flow H L M Hr 3110 Sound po...

Страница 10: ...kage weight Kg 38 Units per pallet Units 8 INDOOR Stacking height Units 4 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 1 Fan speeds H L RPM 850 Air flow H L M Hr 3...

Страница 11: ...Units per pallet Units 8 INDOOR Stacking height Units 4 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 1 Fan speeds H L RPM 850 Air flow H L M Hr 3110 Sound power l...

Страница 12: ...10 Package weight Kg 38 Units per pallet Units 8 INDOOR Stacking height Units 4 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 2 Fan speeds H L RPM 1125 Air flow H L...

Страница 13: ...Kg 38 Units per pallet Units 8 INDOOR Stacking height Units 4 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 2 Fan speeds H L RPM 1125 Air flow H L M Hr 4150 Sound...

Страница 14: ...610 Package weight Kg 38 Units per pallet Units 8 INDOOR Stacking height Units 4 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 2 Fan speeds H L RPM 1125 Air flow H...

Страница 15: ...ht Kg 38 Units per pallet Units 8 INDOOR Stacking height Units 4 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 2 Fan speeds H L RPM 1125 Air flow H L M Hr 4150 Soun...

Страница 16: ...35 620 Package weight Kg 45 Units per pallet Units 8 INDOOR Stacking height Units 2 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 2 Fan speeds H L RPM 1125 Air flow...

Страница 17: ...ight Kg 45 Units per pallet Units 8 INDOOR Stacking height Units 2 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 2 Fan speeds H L RPM 1125 Air flow H L M Hr 4150 So...

Страница 18: ...Package weight Kg 46 Units per pallet Units 8 INDOOR Stacking height Units 2 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 2 Fan speeds H L RPM 1220 955 Air flow H...

Страница 19: ...46 Units per pallet Units 8 INDOOR Stacking height Units 2 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 2 Fan speeds H L RPM 1220 955 Air flow H L M Hr 4345 3400...

Страница 20: ...eight Kg 46 Units per pallet Units 8 INDOOR Stacking height Units 2 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 2 Fan speeds H L RPM 1220 955 Air flow H L M Hr 43...

Страница 21: ...age weight Kg 50 Units per pallet Units 8 INDOOR Stacking height Units 4 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 2 Fan speeds H L RPM 825 560 Air flow H L M H...

Страница 22: ...age weight Kg 50 Units per pallet Units 8 INDOOR Stacking height Units 4 Refrigerant control Capillary tube Compressor type Scroll Fan type quantity Axial 2 Fan speeds H L RPM 825 560 Air flow H L M H...

Страница 23: ...DB Heating indoor 20qC 68qF DB Outdoor 7qC 45qF DB 6qC 43qF WB Refrigerant tubing length one way 7 5m 24 6 ft 2 Guaranteed operating range Indoor Outdoor Upper limit 32qC DB 23qC WB 46qC DB Cooling Lo...

Страница 24: ...4 1 OUTLINE DIMENSIONS Revision Y05 01 Service Manual EMD Series 4 OUTLINE DIMENSIONS 4 1 Indoor Unit EMD 27 35 40 4 2 Indoor Unit EMD 45 50 4 3 Indoor Unit EMD 60 600 600...

Страница 25: ...4 2 OUTLINE DIMENSIONS Revision Y05 01 Service Manual EMD Series 4 4 Outdoor Unit OU6 27 4 5 Outdoor Unit OU8 33...

Страница 26: ...4 3 OUTLINE DIMENSIONS Revision Y05 01 Service Manual EMD Series 4 6 Outdoor Unit OU10 38 45 50 4 7 Outdoor Unit OU12 60...

Страница 27: ...5 1 WIRING DIAGRAMS Revision Y05 01 Service Manual EMD Series 5 WIRING DIAGRAMS 5 1 EMD 27 1PH INDOOR POWER SUPPLY INDOOR OUTDOOR...

Страница 28: ...5 2 WIRING DIAGRAMS Revision Y05 01 Service Manual EMD Series 5 2 EMD 35 1PH OUTDOOR POWER SUPPLY INDOOR OUTDOOR...

Страница 29: ...5 3 WIRING DIAGRAMS Revision Y05 01 Service Manual EMD Series 5 3 EMD 35 3PH OUTDOOR POWER SUPPLY INDOOR OUTDOOR...

Страница 30: ...5 4 WIRING DIAGRAMS Revision Y05 01 Service Manual EMD Series 5 4 EMD 40 1PH OUTDOOR POWER SUPPLY I INDOOR OUTDOOR...

Страница 31: ...5 5 WIRING DIAGRAMS Revision Y05 01 Service Manual EMD Series 5 5 EMD 40 45 3PH OUTDOOR POWER SUPPLY INDOOR OUTDOOR...

Страница 32: ...5 6 WIRING DIAGRAMS Revision Y05 01 Service Manual EMD Series 5 6 EMD 50 3PH OUTDOOR POWER SUPPLY INDOOR OUTDOOR...

Страница 33: ...5 7 WIRING DIAGRAMS Revision Y05 01 Service Manual EMD Series 5 7 EMD 60 3PH OUTDOOR POWER SUPPLY INDOOR OUTDOOR...

Страница 34: ...6 1 REFRIGERATION DIAGRAMS Revision Y05 01 Service Manual EMD Series 6 REFRIGERATION DIAGRAMS 6 1 Model EMD 27 RC Heat Pump...

Страница 35: ...6 2 REFRIGERATION DIAGRAMS Revision Y05 01 Service Manual EMD Series 6 2 Model EMD 35 RC Heat Pump...

Страница 36: ...6 3 REFRIGERATION DIAGRAMS Revision Y05 01 Service Manual EMD Series 6 3 Models EMD 27 35 ST Cooling Only...

Страница 37: ...6 4 REFRIGERATION DIAGRAMS Revision Y05 01 Service Manual EMD Series 6 4 Models EMD 40 45 50 60 RC Heat Pump...

Страница 38: ...6 5 REFRIGERATION DIAGRAMS Revision Y05 01 Service Manual EMD Series 6 5 Model EMD 40 45 50 ST Cooling Only...

Страница 39: ...EMD 40 75 225 525 675 1275 EMD 45 75 225 525 675 1275 EMD 50 75 225 525 675 1275 EMD 60 100 300 700 900 1700 REFRIGERANT TUBING LENGTH ONE WAY MODEL MAXIMUM REFRIGARANT TUBING LENGTH AND HEIGHT DIFFE...

Страница 40: ...pump Cooling and Heating by heat pump and supplementary heater 2 SH group 3 RH group Cooling and Heating by heaters only Before installation be sure that you select and set for the right group PACKAGE...

Страница 41: ...7 2 CONTROL SYSTEM Revision Y05 01 Service Manual EMD Series 8 CONTROLS MAIN P C B DUCTED SPLIT A C PG 8 2 SERIES EMD REV 01 03 2004 POWE POWER CONTROLLE OLLER...

Страница 42: ...YSTEM Revision Y05 01 Service Manual EMD Series PG 12 14 SERIES EMD REV 01 03 2004 FIG 4 ELECTRICAL ASSEMBLY EMD FOR COMPONENTS DESCRIPTION AND CATALOG NUMBERS REFER TO SPARE PARTS LIST FOR THE RELEVA...

Страница 43: ...7 4 CONTROL SYSTEM Revision Y05 01 Service Manual EMD Series GANG BOARD DISPLAY BOARD...

Страница 44: ...N qC DEGREES _ OFF _ _ HORIZONTAL VERTICAL SWING FUNCTIONS TOGETHER TEMP DISPLAY IN qF DEGREES _ ON _ _ DISABLE LCD KEY ILLUMINATION TIMER CLOCK 12 H AM PM OFF _ _ _ ENABLE LCD KEY ILLUMINATION TIMER...

Страница 45: ...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 Parag...

Страница 46: ...2 Min time interval between IFAN speed change in H M L Mode is 1 sec 2 2 3 IFAN speed in Heat Cool Autofan Mode is determined according to the following chart T oc L M H IFAN speed 3 1 4 2 where in He...

Страница 47: ...b above is disabled when Deicer Protection is started The detection will be enabled again only after 1 the deicing is completed and 2 COMP has been restarted and operated for 30 sec ii When all the f...

Страница 48: ...R C sensor in I FEEL mode 3 1 3 Indoor Coil Temp is detected by ICT 3 1 4 Outdoor Coil Temp is detected by OCT 3 2 Control Functions 3 2 1 COMP Operation ON OFF RT SPT 0 1 COMP 3 2 2 OFAN Operation x...

Страница 49: ...5 01 Service Manual EMD Series 3 3 Sequence Diagrams 3 3 1 Maintaining room temp at desired level by comparing RT and SPT with user defined IFAN speed RT SPT o c 3 2 1 0 1 2 ON OFF ON OFF USER FAN SPE...

Страница 50: ...ce Manual EMD Series 3 3 2 Maintaining room temp at desired level by comparing RT and SPT with AUTO IFAN RT SPT oc 4 3 2 1 0 1 2 ON OFF ON OFF H L M ON OFF COMP WVL OFAN IFAN RV Note Refer to Sect 2 2...

Страница 51: ...en COMP is ON except WAX Model IFAN will change from Low to OFF either when 1 ICT 28 and IFAN is on for 5 min or longer Or 2 ICT 20 Note 2 When ICT is faulty When the compressor switches from off to o...

Страница 52: ...nly if IFAN is ON ii Heaters will operate according to T and the following graph 32 20 20 15 50 ON OFF ICT 45 HE 1 HE 2 General Window c Rules for Heaters operation in SH group i When heaters are to b...

Страница 53: ...F 4 1 6 OFAN Operation for RC and SH groups i As a general rule for RC and SH groups excluding protection modes OFAN starts with the compressor ii When OFAN is then ON it will operate according to the...

Страница 54: ...C or SH Group Mode Heat Auto at heating Temp Selected desired temperature Fan HIGH MED LOW Timer Any I Feel On or Off Sequence Diagram Maintains room temp at desired level by comparing RAT or RCT to S...

Страница 55: ...SH Group with Autofan Mode Heat Auto at heating Temp Selected desired temperature Fan Auto Timer Any I Feel On or Off Sequence Diagram Maintains room temp at desired level by controlling COMP IFAN an...

Страница 56: ...Group Mode Heat Auto at Heating Temp Selected desired temperature Fan HIGH MED LOW Timer Any I Feel On or Off Sequence Diagram Maintains room temp at desired level by controlling Heating Elements HE1...

Страница 57: ...with Autofan Mode Heat Auto at Heating Temp Selected desired temperature Fan Auto Timer Any I Feel On or Off Sequence Diagram Maintains room temp at desired level by controlling the 2 Stage Electric H...

Страница 58: ...RT reaches SPT 1o c or SPT 1o c respectively 5 1 4 For RC SH units Mode change between Auto Heat Auto Cool Modes is possible only after the COMP has been OFF during the last T minutes Mode Change time...

Страница 59: ...or Heating RC or SH Groups Maintains room temp at desired level by selecting between cooling and heating modes RT SPT o c 3 2 1 0 1 2 3 4 ON OFF ON OFF H M L OFF ON OFF ON OFF COMP OFAN HE1 HE2 IFAN R...

Страница 60: ...o Cooling or Heating RH Group Maintains room temp at desired level by selecting between Cooling or Heating Modes RT SPT o c 3 2 1 0 1 2 3 ON OFF ON OFF L OFF ON OFF H M L 30 sec COMP OFAN HE1 HE2 IFAN...

Страница 61: ...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...

Страница 62: ...mp Selected desired temp Fan Low automatically selected by software Timer Any I FEEL Any Control function Reduce room humidity with minimum Temp fluctuations by operating in Cool Mode with low speed I...

Страница 63: ...ed desired 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 IF...

Страница 64: ...N IFAN OPER LED 52 55 61 66 L COMP is forced OFF OFAN is forced ON IFAN forced to LOW 68 OFAN follow operation of COMP COMP is forced OFF OFAN is forced ON For all models except WAX P2000 For WAX P200...

Страница 65: ...r coil from ice formation by controlling COMP RV operation 7 2 1 1 Deicer Activation Algorithm 1 static deicer threshold is 5 C 2 dynamic deicer threshold is change of 3 C in 3 minute in the OCT tempe...

Страница 66: ...FAN OFF ANY HE OFF ANY all SH units except WAX 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 De...

Страница 67: ...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 i...

Страница 68: ...or any Timer settings 4 Uncover the remote control IR transmitter and change the temperature settings If the display indoor unit receive the settings properly the following steps will start STEP 3 MO...

Страница 69: ...ails the COOL LED will turn ON In order to move to the next step press ON OFF button on the remote control STEP 6 INPUT TEST This stage is testing the analog real time indicators thermistors LEVEL and...

Страница 70: ...st result is reported by using the STAND BY and FILTER LEDS LED indicator Condition for LED to be ON STAND BY LED Test passed FILTER LED Test failed AT THIS POINT THE SELF TEST IS COMPLETED In order t...

Страница 71: ...SELF TEST DIAGRAM Step 1 Step 2 Step 3 FOR CONTROLLER VERSION 4V5 OR HIGHER COOL HEAT COMPRESSOR OUTDOOR FAN R V LOW MEDIUM HIGH TIMER OPERATE STANDBY BUZZER TEST ONE BEEP SOUND REMOTE CONTROL TO CPU...

Страница 72: ...5 seconds according to the following table No Problem 1 2 3 4 5 1 RT1 is disconnected 2 RT1 is shorted 3 RV Fault 4 RT2 is disconnected 5 RT2 is shorted 6 Reserved 7 RT2 temp reading doesn t change 8...

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