INTRODUCTION INTRODUCTION General The new HJD DCI INVERTER split wall mounted range has expanded, comprising the following RC (heat pump) models: HJD 9 DCI HJD 12 DCI HJD 18 DCI HJD 24 DCI HJD 30 DCI The indoor HJD DCI units are available as LED display types, featuring esthetic design, compact dimensions, and low noise operation.
INTRODUCTION Indoor Unit The indoor unit is wall mounted, and c New design is available in LED version. Indoor Unit features: Feature HJD009 HJD012 HJD018 HJD024 Feature HJD009 HJD012 HJD018 HJD024 HJD030 Display Optional Ionizer Optional Optional Fresh air Indoor fan motor Indoor fan motor Horizontal motorizes louver c i t...
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INTRODUCTION Outdoor Unit The HJD DC INVoutdoor units can be installed as or wall mounted units by using a wall supporting bracket. The metal sheets are protected from corrosion paint work allowing long life resistance. All outdoor units are pre-charged. For further information please refer to the Product Data Sheet, Chapter 2.
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INTRODUCTION 1.11 Matching Table 1.11.1 R410A INDOOR UNITS INDOOR UNITS OUTDOOR UNITS OUTDOOR UNITS INDOOR UNITS OUTDOORS UNITS MODEL MODEL REFR” REFR” HJD009 HJD009 HJD012 HJD012 HJD018 HJD018 HJD024 HJD024 YBDE009 DC YBDE009 DCI R410A R410A MODEL REFR" HJD009 HJD012 HJD018 HJD024 HJD030...
PRODUCT DATA SHEET PRODUCT DATA SHEET HJD009 DCI Model Indoor Unit AWAU-HJD009-N11 Model Outdoor Unit AWAU-YBDE009-H11 l l a Heating Average Capacity SEER /SCOP c i f Tbiv 220-240V/Single/50Hz & y t i Fan speeds H/M/L 1050/900/800 1050/900/800 Air flow H/M/L m3/hr 530/430/330...
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PRODUCT DATA SHEET HJD012 DCI Model Indoor Unit AWAU-HJD012-N11 Model Outdoor Unit AWAU-YBDE012-H11 l l a Heating Average Capacity SEER /SCOP c i f 1225 Tbiv 220-240V/Single/50Hz & y t i Fan speeds H/M/L 1100/950/800 1100/950/800 Air flow H/M/L m3/hr 550/450/350 550/450/350 External static...
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PRODUCT DATA SHEET HJD018 DCI Model Indoor Unit AWAU-HJD018-N11 Model Outdoor Unit AWAU-YBDE018-H11 l l a Model Indoor Unit AWSI-HJD018-N11 Heating Model Outdoor Unit AWAU-YBDE018-H11 Average Installation Method of Pipe Flared Capacity Heating Characteristics Units Cooling Average Warmer SEER /SCOP Pdesign c i f SEER / SCOP...
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PRODUCT DATA SHEET HJD024 DCI Model Indoor Unit AWAU-HJD024-N11 Model Outdoor Unit AWAU-YBDE024-H11 l l a Model Indoor Unit AWSI-HJD024-N11 Model Outdoor Unit AWAU-YBDE024-H11 Heating Cooling Installation Method of Pipe Flared Average Heating Capacity Characteristics Units Cooling Average Warmer Pdesign SEER /SCOP SEER / SCOP 4.65...
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PRODUCT DATA SHEET HJD024 DCI Model Indoor Unit AWAU-HJD024-N11 Model Outdoor Unit AWAU-YBDE024-H11 Model Indoor Unit AWSI-HJD030-N11 Model Indoor Unit AWSI-HJD024-N11 l l a Model Outdoor Unit AWAU-YBDE030-H11 Model Outdoor Unit AWAU-YBDE024-H11 Heating Cooling Installation Method of Pipe Flared Installation Method of Pipe Flared Average Heating...
RATING CONDITIONS Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units). Cooling: Indoor: C DB 19 C WB Outdoor: 35 C DB Heating: Indoor: C DB Outdoor: 7 C DB 6 C WB Operating Limits 3.1.1 R410A Indoor Outdoor...
OUTLINE DIMENSIONS OUTLINE DIMENSIONS Indoor Unit: HJD009 / 012 DCI MOUNTING TEMPLATE CEELING TO BE USED FOR LOCATION OF INDOOR UNIT ON THE WALL INDOOR UNIT OUTLINE 810.0 MOUTING PLATE OUTLINE 30.0 167.5 167.5 93.0 TUBING WALL OPENING 93.0 (FOR REAR ROUTING) TUBING WALL OPENING (FOR REAR LEFT ROUTING) AIR INTAKE...
PERFORMANCE DATA & PRESSURE CURVES PERFORMANCE DATA HJD009 / YBDE009 DCI 5.1.1 Cooling Capacity (kW) - Run Mode ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range)
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& 5.1.3 Heating Capacity (kW) - Run Mode) ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 1.37 1.17 0.97 -15/-16 0.42 0.45 0.48 1.80 1.61 1.41 -10/-12 0.47 0.50 0.53 2.13 1.93 1.74 -7/-8 0.52 0.55...
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& HJD012 / YBDE012 DCI 5.3.1 Cooling Capacity (kW) - Run Mode ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range) 25 - 50 % of nominal...
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PERFORMANCE DATA & PRESSURE CURVES 5.3.3 Heating Capacity (kW) - Run Mode ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 1.82 1.56 1.30 -15/-16 0.70 0.75 0.80 2.40 2.14 1.88 -10/-12 0.79 0.84 0.89 2.84 2.58...
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PERFORMANCE DATA & PRESSURE CURVES HJD018 / YBDE018 5.5.1 Cooling Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ ID COIL ENTERING AIR DB/WB TEMPERATURE OD COIL OD COIL ENTERING AIR ENTERING AIR DB DATA 22/15...
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& 5.5.3 Heating Capacity (kW) - Run Mode) 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ ID COIL ENTERING AIR DB TEMPERATURE [°C] OD COIL ENTERING OD COIL ENTERING AIR DB/WB DATA AIR DB/WB TEMPERATURE [ DATA TEMPERATURE [°C]...
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PERFORMANCE DATA & PRESSURE CURVES HJD024 / YBDE024 HJD04 / YBDE024 5.6.1 Cooling Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ OD COIL ID COIL ENTERING AIR DB/WB TEMPERATURE ENTERING AIR DB DATA 22/15...
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& 5.6.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ ID COIL ENTERING AIR DB TEMPERATURE [°C] OD COIL ENTERING OD COIL ENTERING AIR DB/WB DATA AIR DB/WB TEMPERATURE [ DATA TEMPERATURE [°C]...
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PERFORMANCE DATA & PRESSURE CURVES HJD024 / YBDE024 HJD04 / YBDE024 HJD030 / YBDE030 5.6.1 5.7.1 Cooling Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ ID COIL ENTERING AIR DB/WB TEMPERATURE OD COIL ID COIL ENTERING AIR DB/WB TEMPERATURE ENTERING AIR DB...
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& 5.7.3 5.6.3 Heating Capacity (kW) - Run Mode 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ ID COIL ENTERING AIR DB TEMPERATURE [°C] ID COIL ENTERING AIR DB TEMPERATURE [°C] OD COIL ENTERING OD COIL ENTERING AIR DB/WB DATA...
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& Pressure Curves 5.9.1 —Test Mode 5.8.5 Model: HJD009 / YBDE009 DCI Cooling Suction Pressure vs. Outdoor Temperature Indoor 1000 DB/WB 22/15 24/17 27/19 29/21 32/23 Outdoor DB Temperature Discharge Pressure vs. Outdoor Temperature Indoor 3700 DB/WB 3500 3300 22/15 3100 24/17 2900...
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PERFORMANCE DATA & PRESSURE CURVES 5.9.2 5.8.6 Heating — Test Mode Suction Pressure vs. Outdoor Temperature 1050 Indoor DB Outdoor WB Temperature Discharge Pressure vs. Outdoor Temperature 3400 Indoor DB 3250 3100 2950 2800 2650 2500 2350 2200 2050 1900 1750 Outdoor WB Temperature SM HJD DCI 1-A.1 GB...
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& 5.9.3 — Test Mode Model: HJD0 12 / YBDE012 DCI Cooling 5.8.7 Suction Pressure vs. Outdoor Temperature Indoor 1000 DB/WB 22/15 24/17 27/19 29/21 32/23 Outdoor DB Temperature Discharge Pressure vs. Outdoor Temperature Indoor 3700 DB/WB 3500 3300 22/15 3100 24/17 2900...
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PERFORMANCE DATA & PRESSURE CURVES 5.9.4 5.8.8 Heating — Test Mode Suction Pressure vs. Outdoor Temperature 1050 Indoor DB Outdoor WB Temperature Discharge Pressure vs. Outdoor Temperature 3400 Indoor DB 3250 3100 2950 2800 2650 2500 2350 2200 2050 1900 1750 Outdoor WB Temperature SM HJD DCI 1-A.1 GB...
ELECTRICAL DATA ELECTRICAL DATA Single Phase Unit Model HJD009 DCI HJD012 DCI HJD018 DCI HJD024 DCI HJD030 DCI HJD00 9 DCI HJD0 12 DCI HJD01 8 DCI HJD0 24 DCI Model Power Supply 1 PH, 220-240VAC, 50HZ Connected to To indoor To outdoor Maximum Current Maximum Current...
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WIRING DIAGRAMS Indoor Unit: HJD 018 Horizontal step motor Vertical step motor IFAN RAT ICT F resh A i r Ionizer capacitor 2uF 450V P11P15 ( red) P5(white) P6(White) P8 ( Red) P10(Red) Indoor unit controller PCB megatool Jumper PH-12 9 10 magnetic ring To metal sheet...
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ELECTRICAL CONNECTIONS 11.2 HJD024 DCI HJD030 DCI 1. Indoor unit terminal 5. Cable clamp. 2. Ground wire. 6. Outdoor unit wire terminal. 3. Indoor coil. 7. Power cable in the outdoor side 4. Multiple wire cable. (only for outdoor unit power supply) A.
CONTROL SYSTEM CONTROL SYSTEM CONTROL SYSTEM CONTROL SYSTEM 12.1 Abbreviations Abbreviation Definition Air Conditioner Building Management System Compressor Current Crankcase Heater COMP Compressor Compressor Top Temperature sensor DC Inverter DMSMP Dummy Multi Split multi Pipe – Control board E²PROM, EEP Erase Enable Programmable Read Only Memory Electronic Expansion Valve Heating Element...
CONTROL SYSTEM 12.2 Product Overview 12.2.1 Block Diagram Line Filter 230VAC Driver Control ODU Controller OFAN Control Display IDU Controller Communication IFAN Pump Senso Temp. 230V Control r Input contact Inputs Outputs Output contacts Night PBMS Overflow Power Shedding Force Mode Alarm Power Lines Low Voltage...
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CONTROL SYSTEM 12.2.2. Main C Controller r Outdoor Unit YBD DE018/024 12.2.2.2 Main C Controller r Outdoor Unit YBD DE030 12.2.2. Main C Controller r Indoor U Unit HJD03 SM HJD DCI 1-A.1 GB SM HJD DCI 1-A.2 GB 12-...
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CONTROL SYSTEM SM HJD DCI 1-A.2 GB SM HJD DCI 1-A.1 GB 12-...
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CONTROL SYSTEM 12.2.3 Control F Features 12.2.3. Comp pressor C brush less s and senso r less moto or inverter d riven comp ressor. 12.2.3. Comp pressor Dr rive C inverter mo odule to dri ve compres ssor. 12.2.3. Outdo oor Fan DE 030: DC C brush less...
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CONTROL SYSTEM 12.2.3. Temp erature Se ensors Action OMT HST ICT RAT Compresso or Speed C Cool/Dry Compresso or Speed H Heat +(Mu lti) OFAN Spe eed Cool OFAN Spe eed Heat EEV Cool +(Multi) EEV Heat +(Multi) Deicing Base Heat Indoor load d (NLOAD) IFAN Spee...
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CONTROL SYSTEM 12.3 Genera al Operat ting Rule 12.3.1 Power up p Sequenc Afte er Power up p A/C must perform so ome initializa ation proced dures. Thermi istors short/ /disconnect Compr ressor Drive er communi cation conn nected and error codes s if any.
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CONTROL SYSTEM Single e split Multi Split Case Fault tion annel Channel 1 (Normal Dete ected Not detected No Fault Continue to the next step 2 (Normal Not De etected Detected No Fault Continue to the next step 3 (Abnorma Not De etected Not Detected...
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CONTROL SYSTEM 12.3.4. The fo ollowing th hermistor r faults are e detected d by the sy ystem: Thermistor Thermisto or is Disconn ected hermistor is S Shorted Temp < -3 5 °C emp > 75 °C Temp < -3 0 °C emp >...
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CONTROL SYSTEM 12.4 Indoor r Unit Co ntrol 12.4.1 Load cal culation AD is calcula ated accord ding to the d difference b between act tual room te emperature and user set p point tempe erature by P PI control. In hi igh/ medium m/ low indoo...
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CONTROL SYSTEM 12.4.2. Indoo r fan cont trol – Heat t Mode 4.2.3.1 IFA AN Operatio on in set sp peed hen in heat m mode, inclu uding protec ctions and e except Deic ing, IFAN w will be worki cording to th he graph be elow.
CONTROL SYSTEM 12.4.3 Cooling Mode 12.4.3. Coolin ng Mode – – General Mode e Definition Mode COOL, A AUTO (at C Cooling) Temp p: Selected d desired te emperature Fan: LOW, M MED, HIGH, TURBO, A AUTO. Timer r: Any I-FEE EL: ON or O Room...
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CONTROL SYSTEM 12.4.3. Seque ence Diag rams Maintaining g room tem mp at desired d level by c comparing R RT and SPT T with user d defined IFA AN speed. (RT - S SPT) [ q C] COMP Spee COMP S Speed decrease...
CONTROL SYSTEM 12.4.4 Heating Mode 12.4.4. Heatin ng - Gener Mode e Definition de: HEAT, A AUTO (at he eating) mp: Selected d desired te emperature LOW, M MED, HIGH, TURBO, A AUTO. Time er: Any I-FE EEL: ON or Room m Temperatu ure, RT, is d...
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CONTROL SYSTEM 12.4.4. Seque ence Diag Maintains room temp p. at desired d level by co omparing R AT or RCT to SPT. (RT - SPT) [ [ q C] P Speed COMP Speed decre ease ncrease COMP AN Speed AN Speed incre ease...
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CONTROL SYSTEM 12.4.4. Indoo r Fan Con ntrol in He eat Mode hen in heat m mode, inclu uding protec ctions and e except Deic ing, and wh hen the nditions in th he table be low are fulfi illed, IFAN w will be work king accordi ing to the...
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CONTROL SYSTEM 12.4.5 Automat tic Cooling g or Heati 12.4.5. Autom matic Cool ling or He eating - Ge eneral Mode e Definition Mode AUTO Temp p: Selected d desired te emperature Fan: Timer r: Any I-FEE EL: ON or O 12.4.5.
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CONTROL SYSTEM 12.4.6 Dry Mod 12.4.6. DRY - - General Mode e Definition Mode Temp p: Selected d desired te emperature Fan: LOW (a utomatically y selected b by software Timer r: Any I-FEE EL: ON or O 12.4.6. Contr rol functio COMP P Operation...
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CONTROL SYSTEM AT-SPT AN Low ANOffTimeDry FANOnTimeDr Note 1 Note 1 NLOAD LOAD Note 1 min{MaxNLOAD DIF1C + Extra aNLOADDry,12 27 } axNLOADIF1C Min(IC CT,ICTE) ICTLow wLimitDry CTHighLimitD 12.4.7 Sleep Mo 12.4.7. Sleep Mode - G General Mode e Definition Mode Temp p: Selected...
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CONTROL SYSTEM o In HE EAT or AUTO O HEAT mo odes, the S PT adjustm ment is nega ative (from 0 to -3oC). o In oth her modes, t there is no SPT adjust ment. o The S SPT adjustm ment is canc celled when n the Sleep...
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CONTROL SYSTEM 12.4.10 Indoor Unit Dry Contact Status Function Contact = Open Contact = Short J9 = Open Clock See below See below No action – normal J9 = Short Presence Detector Connection Forced to STBY operation The Clock is activated according to the following table: A/C STATE (before CLOCK STATE CLOCK ACTION...
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CONTROL SYSTEM 12.4.2 On Unit C Controls a and Indica ators (HJD D 030 LCD D Display) Lights up when the A Air Condition ner is conne ected to po and ready y to receive the R/C com mmands Blinks con ntinuously d uring protec ctions (acco...
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CONTROL SYSTEM 12.4.3.4 12.4.4 12.4.4.1 12.4.4.2 12.4.4.3 12-23 SM HJD DCI 1-A GB...
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CONTROL SYSTEM Problem OCT is shorted/disconnected CTT is shorted/disconnected HST is shorted/disconnected OAT is shorted/disconnected OMT is shorted/disconnected RGT is shorted/disconnected RLT is shorted/disconnected High Pressure Protection (for water Hydro units) Reserved (for 4-5-6 HP) Reserved (for 4-5-6 HP) Compressor IPM Fault IPM Driver Pin Compressor Current Sensor Fault No Water Flow (For Hydro Units only)
CONTROL SYSTEM 12.5 Run Mode Run mode is the default operation mode of the system. This is the standard operation mode that is active in field application (at customer site). System can go from run mode to other operation modes through keyboard or serial ports. 12.5.1 Mode Setting Thermal mode defines the ODU operation mode.
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CONTROL SYSTEM 12.5.2 Compres ssor Spee ed Control The follow ing diagram m describes the sequen nce of the T Target Frequ uency calcu ulations: NLOAD calculation LOAD ccu lation LOAD calcu lation Max/Min freg limitation Max/ /Min freq lim mitation Max/ /Min freq lim...
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CONTROL SYSTEM 12.5.2. Speed d Step Lim mitations Max Allowed Frequency Step4 4Fre Step3Fre Step2Fre Step1 1Fre Maximum Allowed Frequ uncy after com mpressor starts ep2Tim Step3Tim Step4 p4Tim Step1 1Tim me (min) Compres ssor Starts up (Actua al Freq>0) 12.5.2.
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CONTROL SYSTEM 12.5.3 EEV Con ntrol 12.5.3. EEV G General Ru ules The EEV is s controlled t to keep the op ptimal system m performan nce at all tim es. It is done e by means o of discharge superheat te emperature a and optimum...
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CONTROL SYSTEM 12.5.4 Outdoor Fan Spee ed Control 12.5.4. Gener ral Rules The OFAN operation ke eeps the outd door heat exc changer temp perature with hin predefine ed values by increasing or reducing the OFAN s speed. be checked . Note - Whe enever the OF FAN speed i...
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CONTROL SYSTEM 12.6 Therm odynam ic Protec ctions 12.6.1 ODU Pro otections 12.6.1.1 Protec ction type There are 2 types of p protections: Thermodyn namic prote ections and Cut-Off pro otections: Thermo odynamic p protections Cut-Off p protection Compressor AC over curre Low Pre essure Switch Compressor...
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CONTROL SYSTEM 12.6.1.3 Total Protection n Level De efinition The tota al protection n level is de efined by the e higher lev vel of protec ction receive 12.6.2 Deicing 12.6.2. Deicin ng Starting g Conditio Deicing operation w will start wh en either on ne of the fo llowing con...
CONTROL SYSTEM 12.6.3 High/Low Pressure Protection Whenever high or low pressure accures in the system which extend beind the system pre- defined limits, the high and low pressure switchs turns on (short) and stops the compressor until these limits are redrawn. Fault code error 8 (HPS) or 9 (LPS) will be shown until compressor will resume operation.
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CONTROL SYSTEM at the right side of the third digit. 12.8.2 Keys functionality o Scrolling will be done whenever the button is pressed. o When scrolling alpha values, if the scroll button is held in, the selection will change at the rate of one step per second.
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CONTROL SYSTEM 12.8.3 Menus 12.8.3 Main M Menu Mode (Cl/H Ht/Sb) Technician n Test (tt) Technician T Test Cool (P PtC) Technician T Test Heat ( PtH) Charge Test t Cool (CtC Charge Test t Heat (CtH Installation n Test (it) (Multi Only Number of I DU`s...
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CONTROL SYSTEM diagnostics s menu, xx means fail lure code. Only the la ast active (o operative) f failure code ll be shown n, if there is s no active failure a “- “sign will be e shown (th he faults Nu umbers are e one show wn in the sin...
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CONTROL SYSTEM (Multi Only) Family -C (Multi Only) Family -D (Multi Only) Family -E Model Model -A (Multi Only) Model -B (Multi Only) Model -C (Multi Only) Model -D (Multi Only) Model -E Operation Mode OFAN Up OFAN Down Speed RGT-A (Multi Only) RGT-B...
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CONTROL SYSTEM Notes: x For r the tempe erature disp play, when a thermisto or is shorte ed or discon nnected it shows FLT Lt), when it i is disabled it shows DI S (dis). x It’s possible to o present a a number b between 99 99 and 99,...
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CONTROL SYSTEM 12.9.2.4 Model l selection n Jumper/ /DIP – J7, Model 12.9.2.5 Prese ence Detec ctor/DIP – osition Sta atus Descripti pen (Discon nected) Clock en abled (Defa ault) ose (Shorte Presence e detector e enabled 12.9.3 ODU Jum mpers 12.9.3.1 Self te...
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CONTROL SYSTEM YBDE 018-H11 (OU7-22 DCI) YBDE 018-H11 (OU7-22 DCI) YBDE 024-H11 (OU7-30 DCI) YBDE 024-H11 (OU7-30 DCI) YBDE 030-H11 (OU8-35 DCI) YBDE 030-H11 (OU8-35 DCI) YBDE 009-H11 YBDE 009-H11 YBDE 012-H11 YBDE 012-H11 12.9.5 Remote Control D IP Switch Settings 12.9.5 Remote...
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CONTROL SYSTEM 12.10 System Parameters 12.10.1 General Parameters for All Models Name Default Value Units MinOFFTime minute MinONTime minute DImin minute DImax minute TimeD minute DTmin minute minute minute CTMRUP minute second DEICT1 second DEICT2 second DEICT3 second DSTF °C OMTOH0 °C OMTOH1...
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CONTROL SYSTEM 12.10.2 ODU Model Dependent Parameters Parameter Name Range Res. Unit MinFreqC 0-127 MaxFreqC 0-127 MinFreqH 0-127 MaxFreqH 0-127 DeicerFreq 0-127 Step1Freq 0-127 Step2Freq 0-127 Step3Freq 0-127 Step4Freq 0-127 Step1Time Step2Time Step3Time Step4Time NightRPS 0-110 OFMinRPMC 0-130 *10RPM OFMinRPMH 0-130 *10RPM OFMaxRPMC...
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CONTROL SYSTEM Parameter Name Range Res. Unit HSTOH1 0 –110 °C HSTOH2 0 –110 °C HSTOH3 0 –110 °C HSTOH4 0 –110 °C HSTOH5 0 –110 °C ICTDef0 -23 – 8 °C ICTDef1 -23 – 8 °C ICTDef2 -23 – 8 °C ICTDef3 -23 –...
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CONTROL SYSTEM 12.11 7-Segme e nt Legend d 12-44 SM HJD DCI 1-A GB...
TROUBLESHOOTING TROUBLESHOOTING 13.1 Precaution, Advise and Notice Items 13.1.1 High voltage in Indoor and Outdoor unit electrical assembly Open the Outdoor unit controller assembly only after one minute from power off. Whole controller assembly, including the wires, connected to the Outdoor unit may have the potential hazard voltage when power is on.
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TROUBLESHOOTING 13.2 General System Failures and Corrective Actions SYMPTOM / PROBABLE CORRECTIVE ACTION PROBLEM CAUSE Indoor unit No Power Check supply voltage to main terminals L and supply N with volt meter. Check all supply wiring to controller and Miss-wiring Indoor unit power terminals according to wiring diagram supply indicator (Red...
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TROUBLESHOOTING SYMPTOM / PROBABLE CORRECTIVE ACTION PROBLEM CAUSE One indoor unit or more are operating in cool mode with no capacity, and the other units have water leaks/freezing communication Check and correct the communication wires problems wires of the connection One indoor or more indoor units are are operating in heat...
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TROUBLESHOOTING SYMPTOM / PROBABLE CORRECTIVE ACTION PROBLEM CAUSE pass Indoor fan Check the motor and capacitor 13.5.14) malfunction Outdoor coil Remove block and/or avoid air by-pass block Outdoor fan Check outdoor fan motors ( 13.5.6) malfunction EEV malfunction Check EEV ( 13.5.9) Check if any of fault codes #1-7 is shown on Thermistor(s) display board.
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TROUBLESHOOTING SYMPTO OM / PROBAB ORRECTIV VE ACTION PROBL CAUS heck all scre ews on unit metal chas ssis are htened heck that no o piping is in n contact wi ith each her or with o other parts. heck that no o obstruction ns to outdo or unit coil...
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TROUBLESHOOTING Problem OCT is shorted/disconnected CTT is shorted/disconnected HST is shorted/disconnected OAT is shorted/disconnected OMT is shorted/disconnected RGT is shorted/disconnected RLT is shorted/disconnected High pressure protection Low pressure protection No communication to Driver Compressor IPM Fault IPM Driver Pin ...
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TROUBLESHOOTING 13.4.2 Outdoor unit diagnostics and corrective actions Fault Name Fault Description Corrective Action OCT short/disconnect CTT short/disconnect HST short/disconnect Thermistor not connected OAT short/disconnect Check Thermistor ( 13.5.10) or damaged OMT short/disconnect RGT short/disconnect RLT short/disconnect Normally no action is required If the problem persists for more than Compressor stopped due High pressure protection...
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TROUBLESHOOTING Fault Name Fault Description Corrective Action Can occure during high current conditions. If problem persists, Check power supply to driver. Protection of driver Check driver communication (Error! PFC Trip (Oveload) Reference source not found.). Check no obstruction to electrical box and outdoor coil air inlet.
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TROUBLESHOOTING Fault Name Fault Description Corrective Action exceeded of its outdoor condition exceeded. If not, check OAT limitiations: thermistor, if OK, check no obstructions to outdoor air path. Cooling: >46qC , <-11qC. Heating: >30qC , <-18qC. Indication only, no action. 13.4.3 Fault Code for Indoor unit Note: Indoor unit diagnostics can be viewed by the outdoor unit display board ( 13.4).
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TROUBLESHOOTING Fault Name ICT is disconnected ICT is shorted RAT is disconnected RAT is shorted Reserved ICTE Shorted/Disconneted Undefined IDU Family/Model No Communication No Encoder Reserved Outdoor Unit Fault … Reserved Defrost protection Deicing Protection Outdoor Unit Protection Indoor Coil HP Protection Overflow Protection …...
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TROUBLESHOOTING Fault Probable Cause Corrective Action Normally no action is required If the problem persists for more than twice on each hour, Check for any fault code shown on outdoor unit display Compressor stopped Outdoor Unit board and act accordingly ( 13.4). due to outdoor unit Protection Check the EEV ( 13.5.9)
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TROUBLESHOOTING 13.5 Proced dures for r checkin ng Main Parts 13.5.1 Discharg ge DC Volt tage TURN OFF all power source switches gh voltage e!!! gh voltage e!!! High voltage!!! Wait f Wait f for DC vol for DC vol ltage to be ltage to be e discharg...
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TROUBLESHOOTING 13.5.6 Checking g Outdoor r Fan Moto 13.5.6.1 YBD0 18-024 Check mot tor capacito Check volt tage to moto or, should b be 230-130V VAC. If volt age is not in n range, rep place the m motor. Check that t OMT sens sor reading is OK.
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TROUBLESHOOTING 1) Check the impedance in the coil wires to be as following: Grey wire to each of the other wires – about 100 Other wires – each one to the others (except Grey) – about 50 2) When Outdoor unit is powered on, EEV shall have vibration and click sound. If not, replace the coil with the additional one and check again –...
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TROUBLESHOOTING 13.5.11 Checking g Indoor-O Outdoor U Unit Comm munication 1) Check v voltage on t the intercon nnection wir ring – shoul d be 22VDC C±1VDC. If f not: 2) Disconn nect the wire e cable from m the conne ector on the e IDU main board side...
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TROUBLESHOOTING 13.5.15 Checking g for elect tromagnet tic interfe rence (EM MC problem 13.5.15.1 EMC i interferenc ce to the A A/C unit Locati ions most susceptibl e to interfe erence 1) Loc cations nea r broadcast t stations wh here there a are strong e electromagn...
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HJD00 465020275 Printed Grill A /Glossy/With New Function /LEX7/9/12/14/AIRWELL(RAL9003AW) 4518655 Air filter t l i z i l t l i / . y 465800110 Air Outlet Frame Assy./Assemble New Ionizer Bi-polar/LEX 25 35 DCI (VIESSMANN) 452969500 Step Motor B...
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HJD0 465020275 Printed Grill A /Glossy/With New Function /LEX7/9/12/14/AIRWELL(RAL9003AW) 4518655 Air filter t l i z i l t l i / . y 465800110 Air Outlet Frame Assy./Assemble New Ionizer Bi-polar/LEX 25 35 DCI (VIESSMANN) 452969500 Step Motor B...
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HJD0 l l i r l l i r 452919800 452919800 Filter Filter t l i t l i z i l z i l t l i t l i / . y / . y 453134600 453134600 Evaporator Assy. Evaporator Assy.
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HJD0 l l i r l l i r 452919800 452919800 Filter Filter t l i t l i z i l z i l t l i t l i / . y / . y 465120023 465120023 Air Outlet Frame/Assemble New Ionizer Bi-polar/LEX 50 DCI (VIESSMANN) Air Outlet Frame/Assemble New Ionizer Bi-polar/LEX 50 DCI (VIESSMANN) 453050300 453050300...
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HJD0 l l i r l l i r 452919800 452919800 Filter Filter t l i t l i z i l z i l t l i t l i / . y / . y 465120023 465120023 Air Outlet Frame/Assemble New Ionizer Bi-polar/LEX 50 DCI (VIESSMANN) Air Outlet Frame/Assemble New Ionizer Bi-polar/LEX 50 DCI (VIESSMANN) component Item Description...
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YBDE00 14.10 l a i l a i t i t t i t ” 8 ” 8 ” 4 ” 4 l l o l l o p i l p i l 467400200 467400200 CTT Compressor Top Temperature Sensor/10K/Resin-capsulation CTT Compressor Top Temperature Sensor/10K/Resin-capsulation 452682802 452682802...
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5 10 14.11 l a i l a i t i t t i t ” 8 ” 8 ” 4 ” 4 l l o l l o p i l p i l 467400200 467400200 CTT Compressor Top Temperature Sensor/10K/Resin-capsulation CTT Compressor Top Temperature Sensor/10K/Resin-capsulation 452682802 452682802...
EXPLODED VIEWS AND SPARE PARTS LISTS ([SORGHG YLHZ RI RXWGRRU 8QLW YBDE 018-H11 14.12 14.12.1 General Assembly 1- SM +-' '&, -A. GB...
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EXPLODED VIEWS AND SPARE PARTS LISTS 1.2.2 Parts Assembly 60 +-' '&, $ *% 1-...
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EXPLODED VIEWS AND SPARE PARTS LISTS Spare Part List RI RXWGRRU 8QLW <%'( + 1.2.3 Description 253054 Supply Cord Clamp 416320 Motor 70W,2S,OU7 DCI 416910 Cable Holder 416910 Cable Holder 417000 OU Square Fan Guard 425713 EEV Coil (C) QA (Q) 12-YLT-07-RK 426630 Compressor Internal Insulation 426631...
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EXPLODED VIEWS AND SPARE PARTS LISTS Exploded View RI RXWGRRU 8QLW <%'( + 1.3 1.3.1 General Assembly 60 +-' '&, $ *% 1-1...
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EXPLODED VIEWS AND SPARE PARTS LISTS 1.3.2 Parts Assembly 11 60 +-' '&, $ *%...
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EXPLODED VIEWS AND SPARE PARTS LISTS Spare Part List RI RXWGRRU 8QLW <%'( + 1.3.3 Description 253054 Supply Cord Clamp 402283 Suction Accumulator 3"x5/8" 416320 Motor 70W,2S,OU7 DCI 416910 Cable Holder 416910 Cable Holder 417000 OU Square Fan Guard 425713 EEV Coil (C) QA (Q) 12-YLT-07-RK 426630 Compressor Internal Insulation...
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14.14.3 5 11 14.14 General Assembly Exploded View of outdoor Unit: OU8DCI 14.14.1 General Assembly l a i l a i 464000032P1 464000032P1 t i t t i t ” 2 ” 2 ” 4 ” 4 467300355R Controller/DCRS 2.8KW Sine Wave (PS21997) Main BD 467300355R Controller/DCRS 2.8KW Sine Wave (PS21997) Main BD 467300372R Controller/DCRS 2.8KW Sine Wave (PS21997) Main BD 467300372R Controller/DCRS 2.8KW Sine Wave (PS21997) Main BD...
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14.14.4 5 11 Parts Assembly l a i l a i 464000032P1 464000032P1 t i t t i t ” 2 ” 2 ” 4 ” 4 467300355R Controller/DCRS 2.8KW Sine Wave (PS21997) Main BD 467300355R Controller/DCRS 2.8KW Sine Wave (PS21997) Main BD 467300372R Controller/DCRS 2.8KW Sine Wave (PS21997) Main BD 467300372R Controller/DCRS 2.8KW Sine Wave (PS21997) Main BD p i l...
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14.14.5 Parts Assembly 5 11 l a i l a i 464000032P1 464000032P1 t i t t i t ” 2 ” 2 ” 4 ” 4 467300355R Controller/DCRS 2.8KW Sine Wave (PS21997) Main BD 467300355R Controller/DCRS 2.8KW Sine Wave (PS21997) Main BD 467300372R Controller/DCRS 2.8KW Sine Wave (PS21997) Main BD 467300372R Controller/DCRS 2.8KW Sine Wave (PS21997) Main BD p i l...
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14.14 OU8 DCI 5 11 OOIU 14.14.1 855635 INV35 / OU0831DCA Outdoor Unit OU8 DCI - Spare Part List 855635 INV 35 / OU0831DCA Description 440206 UPPER COVER OU8 402930 SIDE PANEL OU8-33 l a i l a i 436357 SMALL ELECTRICAL COVER OU 439929 FRONT PANEL/COLLECTOR OU8-30...
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