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TECHNICAL MANUAL 2013
SPLIT LIGHT MULTI DC INVERTER
Indoor units
BDLM26A2
BDLM36A2
BDLM53A2
This manual has been created for informative purpose. The company declines every responsibility for the results of projecting or installation based on the explanations and the technical specifications
given in this manual. Is besides forbidden the reproduction under any form of the texts and of the figures contained in this manual.
MODELS
Outdoor units
BD2M53A3
BD3M98A3
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Table of Contents
Related Manuals for MAXA BDLM26A2
Summary of Contents for MAXA BDLM26A2
- Page 1 TECHNICAL MANUAL 2013 SPLIT LIGHT MULTI DC INVERTER MODELS Indoor units Outdoor units BDLM26A2 BD2M53A3 BDLM36A2 BD3M98A3 BDLM53A2 This manual has been created for informative purpose. The company declines every responsibility for the results of projecting or installation based on the explanations and the technical specifications...
- Page 2 Serie / Series / Serie / Serie TECHNICAL MANUAL SPLIT LIGHT MULTI DC Emissione / Issue Sostituise / Supersade Ausgabe / Emission Ersetzt / Remplace 03 - 2013 04 - 2011 Catalogo / Catalogue / Katalog / Catalogue MTE01028D2820-01...
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Page 3: Table Of Contents
INDICE 1. Specifics............................. 5 Indoor units specific........................5 1.2 Outdoor units specifics ......................6 1.3 Noise criteria curve tables for both models ................7 2. Outlines and dimensions ......................7 2.1 Indoor unit ..........................7 2.2 Outdoor unit ..........................8 3. -
Page 4: Specifics
1. Specifics 1.1. Outdoor units specifics Models BD2M53A3 BD3M98A3 V- Ph, Hz 230V 220 ~ 240V , 50Hz Power supply 5,0(2,0~6,3) 7,0(2,0~10,0) Capacity Btu/h 17,0(6,9~21,5) 24,2(6,8~34,1) Power input 1,5(0,5~2,5) 2,15(0,6~4,5) Absorbed current 10,9 S.E.E.R. 5,60-A+ 5,10-A 5,6(2,5~6,6) 8,5(3,2~11,0) Capacity Btu/h 19,1(8,5~22,6) 29,0(10,9~37,5) Power input... -
Page 5: Outdoor Units Specifics
1.2 Indoor units specifics MODELS BDLM26A2 BDLM36A2 BDLM53A2 230V 220 ~ 240V ○, 1 , 50Hz V-Ph, Hz Power supply 5.300 2.600 3.500 Total capacity 18,0 Btu/h 11,9 Power input Absorbed current 0,04 0,04 5.800 2.800 3.800 Total capacity 19,7... -
Page 6: Noise Criteria Curve Tables For Both Models
1.3 Noise criteria curve tables for both models BDLM53A2 BDLM36A2 BDLM26A2 Middle High Super High Indoor Fan Motor Rotating Speed 2. Outlines and dimensions 2.1 Indoor units BDLM26A2 09K Units Φ55 Φ55 BDLM3A2 12K Units Φ55 Φ55 BDLM53A2 18K Units Φ55... -
Page 7: Outdoor Unit
2.2 Outdoor units a) BD2M53A3 8 9 2 3 4 1 9 6 3 3 9 6 5 6 0 U n it:m m b) BD3M98A3 1001 U n it:m m... -
Page 8: Refrigerant Circuit
3. Refrigerant circuit outdoor indoor filter A heat exchanger filte r o u td o o r h e a t e xc h a n g e r 4-way valve B heat exchanger filte r high press ure switch Note: Not availa ble for 14K/18K m odel d isc h a rg e s ile n c e r... -
Page 9: Electrical Diagram
4. Electrical diagram 4.1 Indoor units BDLM26A2, BDLM36A2 ROOM TUBE MOTOR TEM.SENSOR TEM.SENSOR TUBE ROOM N(1) COM-OUT JUMP AC-L YEGN DISP2 DISP1 SWING-UD 4YEGN HEALTH-N HEALTH-L EVAPOR ATOR COO L PLASMA RECEIVERAND SWING GENER ATOR MOTOR DISPLAY BOARD NOTE:The parts with broken line is applicable... -
Page 10: Outdoor Unit
4.2 Outdoor unit BD2M53A3 BD3M98A3... -
Page 11: Printed Circuit
5. Printed circuits 5.1 Indoor units Models: BDLM26A2, BDLM36A2 Part name Top View Power supply live wire connector Power supply neutral wire connector Fan capacitor Health function terminal (optional) Indoor fan wire terminal Indoor and outdoor unit communication wire terminal Up &... -
Page 12: Outdoor Units
5.2 Outdoor units Part name Model: BD2M53A3 Compressor terminal Temp. sensor terminal of low ambient temp. cooling Compressor overload protection terminal Outdoor temp. sensor terminal High pressure protection terminal Low pressure protection terminal Outdoor fan terminal Terminal of chassis electric heating belt 4-way valve terminal Terminal of compressor electric... -
Page 13: Control Functions
6. Control functions 6.1. Temperature Parameters • Indoor ambient temperature (T in_amb. • Evaporator tube temperature (T in_tube Setting temperature (T Note: The following function manual, the temperature unit is centigrade, if there is Fahrenheit, there will be T(°F)=T(°Cx1.8+32. 6.2. Basic functions 6.2.1 Cooling mode 1. -
Page 14: Displayer
b) Timer off: At unit on, can set up the Timer Off function, when Timer Off act, the unit will turn off, the Timer interval is 0.5hr, setting range is 0.5-24hrs. Hours setting for Timer: a) Timer on: If unit is running then to set up the Timer On, the unit will go on running, if the unit is off to set up the Timer On, when Timer On acts, the unit will run at the presetting modes. - Page 15 6.4.3 Refrigerant Recovery Function Enter refrigerant recovery mode: turn on the unit within 5 min after energization and at 16°C cooling mode. Press remote controller light off button successively for 3 times within 3s and the unit will enter refrigerant recovery mode, displaying Fo. The signal will be sent to the outdoor unit.
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Page 16: Outdoor Units Operation
7. Outdoor units Operation 7.1. Temperature parameters Outdoor ambient sensor temperature (T out_amb. Outdoor heat exchanger tube sensor temperature (T out_tube Setting temperature (T 7.2. System basic function 7.2.1 Cool mode 7.2.1.1 Heat mode transfers to Cool mode (1) Compressor stops. (2) Four-way valve delayed 2mins power off. - Page 17 In this mode, four-way valve electrify. Note: In each mode, after protection and unit stop, modes switch or unit off, 4-way valve will power off after 2 minutes delay. 7.2.3.5 Defrosting under Heat mode Under Heat mode, there is intelligent defrosting. 7.2.3.6 Heating Turbo function When outdoor unit received heating mode Turbo function from the indoor unit, at this time, outdoor unit add certain frequency running.
- Page 18 not detect outdoor tube sensor malfunction; Other outdoor sensors after unit turned on start to detect malfunction, outdoor each sensor continuously 30s does not in the temperature upper limit or down limit will alarm. Indoor: Under any status to test indoor each sensor malfunction, continuously 30s does not during the temperature upper and down limit, will alarm.
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Page 19: Troubleshooting
Troubleshooting 8.1. Malfunction Display of Indoor Unit a) Malfunction display requirement When there are several malfunctions, they will be displayed circularly. b) Malfunction display method (1) Hardware malfunction: immediate display; refer to “malfunction display table”; (2) Operation state: immediate display; refer to “malfunction display table”; (3) Other malfunctions: it is displayed after the compressor stops for 200s;... -
Page 20: How To Check Simply The Main Part
Over voltage protection for PN Flash 21 times DC bus-bar high voltage protection Flash 11 times PFC protection Flash 6 times The four-way valve is abnormal Flash 20 times Display state under test state: minimum cooling(heating)-P0; middle cooling(heating)-P3 Nominal cooling(heating)-P1; "... - Page 21 8.2.3 H6 Malfunction Possible causes: 1. Fan motor is locked; 2. The feedback terminal of PG motor is not connected tightly; 3. The control terminal of PG motor is not connected tightly; 4. Motor is damaged; 5. Malfunction of the rotation speed detection circuit of the mainboard. See the flow chart below: “H6”...
- Page 22 8.2.4. F1/F2 Malfunction C5 is displayed on the unit. Is there jumper cap on the mainbaord? Install a matching jumper cap. The jumper cap Is the malfunction eliminated? Is the jumper cap inserted incorrectly or improperly? Re-insert the jumper cap. Is the malfunction eliminated? Replace the jumper cap Is the malfunction eliminated?
- Page 23 8.2.5 E6 Malfunction Inspection 1. Check if connection wire between indoor and outdoor units and wire inside the unit are connected well. 2. Check if mainboard of indoor or outdoor unit is damaged. Communication malfunction of some indoor units De-energize the unit and check if the connecting wire of indoor and outdoor unit and wiring of electric box are correct.
- Page 24 Communication malfunction of all indoor units De-energize the unit and check if the connecting wire of indoor and outdoor unit and wiring of electric box are correct. Connect wires according Is wire connected correctly? Is malfunction removed? to the wiring diagram De-energize the unit.
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Page 25: Malfunction Display Of Outdoor Units
8.3 Malfunction Display of Outdoor Units When several malfunctions occur at the same time, they will be displayed in circulation and every malfunction is displayed for 5s. Malfunction description LED1 LED2 LED3 LED4 Normal stop ○ ○ ○ ○ Compressor run ●... -
Page 26: Malfunction Checking And Elimination
8.4 Malfunction checking and elimination Note: Discharge the position in below pictures with discharge resistance after open the top cover and check if the voltage is below 20V with universal meter, then begin to check. BD2M53A3 BD3M98A3... - Page 27 (1) IPM protection malfunction Main checking point ● If the input voltage of the unit is within normal range? ● If the connection wire of compressor is connected well? Is it loose? ● If the connection sequence is correct? ● If the resistance of compressor coil is normal? ●...
- Page 28 (2) PFC protection malfunction Main checking points: ● If the power supply is normal; ● Check if the connection wire of induction is connected well and if the induction is broken; Flow chart: Start Check If the power supply is normal Turn on the unit after the Power supply is abnormal power supply resumes to...
- Page 29 (4) Anti-high temperature and overload malfunction Main checking points: ● If the outdoor ambient temperature is within the normal range; ● If the outdoor fan is running normally; ● If the indoor and outdoor radiation environment is good; Start It is a normal protection, please If the outdoor ambient temperature operate the unit after the outdoor is above 53°C...
- Page 30 (6) Start failure malfunction Main checking points: ● If the connection wire of the compressor is connected properly; ● If the stop duration of the compressor is sufficient; ● If the compressor is broken; ● If the refrigerant charging amount is too much; Energize and start the unit If the stop duration of the compressor is longer than 3min...
- Page 31 (7) Communication malfunction Main checking points: ● If the connection wire between the indoor unit and outdoor unit is connected well, if the wires inside the unit is connected well; ● If the indoor mainboard or outdoor main board is broken; Communication malfunction of some indoor units De-energize, check the...
- Page 32 All the indoor units appear communication malfunction De-energize, check the connection wire of indoor and outdoor unit and the wire of the electric box is connected correctly Reconnect according Eliminate the malfunction Connected correctly? to the wiring diagram De-energize, check if the connection wire between the outdoor mainboard and the filter board according to the...
- Page 33 (8) Compressor overload, discharge protection malfunction Main checking points: ● If the electric expansion valve is connected well or it is broken; ● If there is refrigerant leakage; ● If the overload protector is broken; Start If the overload protector is connected well? Check the resistance between the two ends of the overload protector...
- Page 34 (9) Compressor desynchronizing malfunction Main checking points: ● If the pressure of the system is too high; ● If the electric expansion valve is working normally or it is broken; ● If the radiation of the unit is good; The unit appears desynchronizing as soon as energizing and starting The stop duration of the compressor is longer than 3min?
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Page 35: Appendix
Appendix Appendix 1: Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (15K) Temp. (°C) Resistance (kΩ) Temp. (°C) Resistance (kΩ) Temp. (°C) Resistance (kΩ) Temp. (°C) Resistance (kΩ) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009... -
Page 36: Appendix 2: Resistance Table Of Outdoor And Indoor Tube Temperature Sensors(20K)
Appendix 2: Resistance Table of Outdoor and Indoor Tube Temperature Sensors(20K) Temp.(°C) Resistance(kΩ) Temp. (°C) Resistance(kΩ) Temp.(°C) Resistance(kΩ) Temp. (°C) Resistance(kΩ) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2 4.289 1.233... -
Page 37: Appendix 3: Resistance Table Of Outdoor Discharge Temperature Sensor(50K)
Appendix 3: Resistance Table of Outdoor Discharge Temperature Sensor(50K) Temp.(°C) Resistance(kΩ) Temp.(°C) Resistance(kΩ) Temp.(°C) Resistance(kΩ) Temp.(°C) Resistance(kΩ) 853.5 18.34 4.754 799.8 93.42 17.65 4.609 89.07 16.99 4.469 703.8 84.95 16.36 4.334 660.8 81.05 15.75 4.204 620.8 77.35 15.17 4.079 580.6 73.83 14.62 3.958... - Page 40 Via Gettuglio Mansoldo (Loc. La Macia) 37040 Arcole Verona, Italy Tel. +39 - 045.76.36.585 r.a. Fax +39 - 045.76.36.551 r.a. www.maxa.it e-mail: maxa@maxa.it...
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