MAXA BDLM26A2 User manual

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
given in this manual. Is besides forbidden the reproduction under any form of the texts and of the figures contained in this manual.

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Serie / Series / Serie / Serie
TECHNICAL MANUAL
SPLIT LIGHT MULTI DC
Emissione / Issue
Ausgabe / Emission
03 - 2013
Catalogo / Catalogue / Katalog / Catalogue
MTE01028D2820-01
Sostituise / Supersade
Ersetzt / Remplace
04 - 2011

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INDICE
1. Specifics..................................................................................................................................... 5
1.1 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. Refrigerant circuit ....................................................................................................................... 9
4. Electrical diagram..................................................................................................................... 10
4.1 Indoor units ............................................................................................................................ 10
4.2 Outdoor unit ........................................................................................................................... 11
5. Printed circuit ........................................................................................................................... 12
5.1 Indoor units ............................................................................................................................ 12
5.2 Indoor units ............................................................................................................................ 13
6. Control functions ...................................................................................................................... 14
6.1. Temperature Parameters ...................................................................................................... 14
6.2. Basic functions ...................................................................................................................... 14
6.3. Others ................................................................................................................................... 14
6.4. Displayer ............................................................................................................................... 15
7. Outdoor units Operation ........................................................................................................... 17
7.1. Temperature parameters....................................................................................................... 17
7.2. System basic function ........................................................................................................... 17
8. Troubleshooting ....................................................................................................................... 20
8.1. Malfunction Display of Indoor Unit.........................................................................................20
8.2. How to Check simply the main part....................................................................................... 21
8.3 Malfunction Display of Outdoor Units ..................................................................................... 26
8.4 Malfunction checking and elimination..................................................................................... 27
Appendix.....................................................................................................................................36
Appendix 1: Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K).......................... 36
Appendix 2: Resistance Table of Outdoor and Indoor Tube Temperature Sensors(20K) ........................................... 37
Appendix 3: Resistance Table of Outdoor Discharge Temperature Sensor(50K)........................................................ 38

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1. Specifics
1.1. Outdoor units specifics
Models
BD2M53A3 BD3M98A3
Power supply V- Ph, Hz 230V 220 ~ 240V , 50Hz
kW 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 kW 1,5(0,5~2,5) 2,15(0,6~4,5)
Absorbed current A 6,8 10,9
Cooling
S.E.E.R. W/W 5,60-A+ 5,10-A
kW 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 kW 1,5(0,5~2,7) 2,28(0,8~3,9)
Absorbed current A 6,8 11,4
Heating
S.C.O.P. W/W 3,80-A 3,80-A
Compressor trademark ZHUHAI LANDA COMPRESSOR CO. LTD
Compressor model QXA-B141zF030A QXAS-D23zX090B
Compressor type DC inverter Rotary
Compressor oil RB68EP
Comp. oil charge L 0,39 0,95
L.R.A.
Compressor RLA A 7,2 11,5
Compressor input W 1440 2550
Compressor capacity 4320 7250
Comp. Overload protector 1NT11L-6233
Throttling method Electronic expansion valve
Starting method Transducer starting
Working temp range °C -15°C ≤T ≤48°C
Condenser material Aluminum fin-copper tube
Rows-Fin Gap mm 2-1.4
Coil length (l) x height (H) x coil width (L) mm 851 x 660 x 38,1 982,2 x 748 x 38,1
Fan motor apeed rpm 880/700/500 690/600/500
Output of fan motor W 60
Fan Motor RLA A 0,56 0,6
Fan motor capacitor μF 4 3,5
Outdoor air flow volume m3/h 2600/2300/1600 3300/2900/2400
Fan type-piece Axial fan –1
Fan diameter mm 520 552
Defrosting method Automatic defrost
Climate type T1
Isolation
I
Moisture protection IP24
Permissible excessive operating pressure for the discharge side Mpa 4,3
Permissible excessive operating pressure for the suction side MPa 2,5
Sound pressure level dB(A) 56/53/50 58/54/52
Sound power level dB(A) 66/63/60 68/64/62
Outline dimension mm 963 x 700 x 396 1001 x 790 x 427
Packing dimension mm 1029 x 458 x 750 1083 x 488 x 855
Net / Gross weight kg 50/55 96/74
Outdoor unit
Refrigerant charge kg R410A / 1,40 R410A / 2,2
Max. connection pipe length (for each indoor unit) m ≤20 ≤20
Difference in livel m 10 10
Gas additional charge g/m
Liquid Inch 1/4 1/4 1/4
Connection
pipe
Pipe out.
diameter Gas Inch 3/8 1/2
3/8
Operating temperature °C -15 ~ 48

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1.2 Indoor units specifics
MODELS BDLM26A2 BDLM36A2 BDLM53A2
Power supply V-Ph, Hz 230V 220 ~ 240V ○,1, 50Hz
kW 2.600 3.500 5.300
Total capacity Btu/h 8,8 11,9 18,0
Power input W 10 10 55
Cooling
Absorbed current A 0,04 0,04 0,3
kW 2.800 3.800 5.800
Total capacity Btu/h 9,5 12,9 19,7
Power input W 10 10 55
Heating
Absorbed current A 0,04 0,04 0,3
Air flow volume (SH/H/M/L)** (m
3
/h) 500 630 850
Dehumidifying volume l/h 0,6 1,4 1,8
Fan motor speed (SH/M/L) (r/min) 1320/1200/1100/950 1280/1080/1000/920 1420/1250/1150/105
0
Fan Motor Capacitor μF1 1 1,5
Fan motor full load Amp (FLA) A 0,144 0,22 0,31
Output of fan motor W 10 20 20
Motor model FN10A-PG FN20J-PG FN20V-PG
Fan type-piece Cross flow fan – 1
Diameter-Length mm Ø85 X 596 Ø92 X 645 Ø98 X 710
Evaporator Aluminum fin-copper tube
Pipe diameter mm Ø7
Row-Fin gap mm 2-1,5 2-1,4 2-1,4
Indoor Coil
Coil length (l)xheight (H)xcoil width (L) mm 581X267X25,4 690X267X25,4
715×304,8x25,4
Swing motor model MP24AA MP28VB
Output of swing motor W 1,5 1,5 2,0
Fuse A PCB 3,15A
Indoor sound level (H/M/L) dB(A) 39/34/28 40/35/30 43/40/35
Dimension (W/D/H) mm 790X174X265 845X180X275 940/200/298
Dimension of package (W/D/H) mm 870x248X355 918x258X370
1013X288X395
Net weight/Gross weight kg 9/11 10/12,5 13/16
Liquid pipe mm Ø6 Ø6 Ø6
Gas pipe (to indoor unit) mm Ø9,52 Ø9,52 Ø12,7
The data of specifications are subject to change without prior notice. Please refer to the actual data specified on the
nameplate of the unit.
Note: Test conditions:
Indoor side state Outdoor side state
Standard condition Dry bulb temp. °C Wet bulb temp. °C Dry bulb temp. °C Wet bulb temp. °C
Rated cooling 27 19 35 24
Max. cooling 32 23 48 26
Min. cooling 21 15 18 -
Rated heating 20 15 7 6
Max heating 27 - 24 18
Min. heating 20 15 -15 -16
3) Microphone at a distance of 1m from the unit.
Approximate calculation from Sound Pressure Level to Sound Power Level:
- Average Sound Pressure Level p
L=10*lg
[
]
21 *1.0*1.0 1010(*2/1 PP LL +.
1P
L: Sound pressure level of front test point.
2P
L: Sound pressure level of side test point for indoor unit 21 ,PP LL .
- Approximate Sound Power Lever pW LL =+10.

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1.3 Noise criteria curve tables for both models
0
10
Noice/dB(A)
20
30
40
50
60
Low Middle High Super High
Indoor Fan Motor Rotating Speed
BDLM26A2
BDLM36A2
BDLM53A2
2. Outlines and dimensions
2.1 Indoor units
W
H
D
50
85
19469452
172542131
61183
45
36
8704
40
09K Units
12K Units
18K Units
941506
69
Φ55
Φ55
Φ55
Φ55
Φ55
Φ55
Dimension (mm)
W H D Models
790 265 174 BDLM26A2
845 275 180 BDLM36A2
940 298 200 BDLM53A2
BDLM3A2
BDLM26A2
BDLM53A2

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2.2 Outdoor units
a) BD2M53A3
8
9
2
3
4
1
396963
560
700
368
Unit:mm
b) BD3M98A3
924 370
427
1001
610
790
399
Unit:mm

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3. Refrigerant circuit
outdoor
indoor
C 1
B 1
A 1
filter
A heat exchanger
gas -liquid separator
inverter compressor
discharge silencer
discharge temperature
sensor
SP
4-way valve
outdoor heat exchanger
fan
high pressure switch
B heat exchanger
C heat exchanger
filter
filter
filter
Note: Not available for 14K/18K
model
C2
C3
B3
B2
A2
A3
Note: Not available for 14K/18K model
A1:A-unit electronic expansion valve A2:A-unit gas pipe temperature sensor A3:A-unit liquid pipe temperature sensor
B1:B-unit electronic expansion valve B2:B-unit gas pipe temperature sensor B3:B-unit liquid pipe temperature sensor
C1:C-unit electronic expansion valve C2:C-unit gas pipe temperature sensor C3:C-unit liquid pipe temperature sensor
D1:D-unit electronic expansion valve D2:D-unit gas pipe temperature sensor D3:D-unit liquid pipe temperature sensor

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4. Electrical diagram
4.1 Indoor units
BDLM26A2, BDLM36A2
AC-L
3BK
TEM.SENSOR TEM.SENSOR
PE
BK
ROOM
TUBE
M2
SWING-UD
ROOM
RT2
AP2
2BN
PG
4YEGN
0
M1
1BU
FAN
OUTDOOR UNIT
BN
2
YEGN
3
BU
XT
N(1)
TUBE
0
RT1
SWING
MOTOR
COM-OUT
N
PGF
MOTOR
CAP
JUMP
DISP2
DISP1
AP1
RECEIVERAND
DISPLAY BOARD
BU RD
HEALTH-N HEALTH-L
GENER ATOR
COO L PLASMA
NOTE:The parts with broken line is applicable
to the models with COOL PLASMA GENERATOR
EVAPOR ATOR
BDLM53A2
M2
M1
TEMP.SENSOR
TEMP.SENSOR
JUMP
CAP
EVAPOR ATOR
PE
TUBE ROOM
N
DISP2
DISP1
AC-L
3BK BK
AP1
ROOM
RT1
0
AP2
2BN
4YEGN
1BU
OUTDOOR UNIT
BN
2
YEGN
3
BU
XT
N(1)
TUBE
0
RT2
COM-OUT
SWING-UD
PGF
PG
FAN MOTOR
RECEIVER AND
DISPLAY BOARD
HEALTH-NHEALTH-L
SWING
MOTOR
COO L PLASMA
GENER ATOR
BU
RD
(optional)

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4.2 Outdoor unit
BD2M53A3
BD3M98A3