GD Midea Refrigeration Equipment Co. Ltd
MULTI SPLIT TYPE, HEAT PUMP AIR CONDITIONERS
Technical service manual 2005
R407C multi Series
Indoor Models
[A SERIES] |
[B SERIES] |
EL-KFR26G/TN2Y-A EL-KFR26G/TN2Y-B EL-KFR36G/TN2Y-A EL-KFR36G/TN2Y-B
Outdoor Models
M2OA-18HRN2 M2OA-21HRN2
M3OA-27HRN2 M3OA-30HRN2
Multi SERIES
Page 1 of 33
1.Features
2.Specification
3.Dimensions
4.Refrigeration cycle diagram
5.Operation limits
6.Wiring diagram
7.Troubleshooting
8.Electronic function
9.Exploded view parts
10.Characteristic of temp. sensor
Page 2 of 33
1.Features
1.1Compact design
1.2High efficiency and quiet operation
1.3Unitary outdoor unit design
Page 3 of 33
2Specification
2.1Indoor unit
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Model |
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EL-KFR26G/TN2Y-A(B) |
EL-KFR36G/TN2Y-A(B) |
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Power supply |
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Ph-V-Hz |
1, 220-240V~,50Hz |
1, 220-240V~,50Hz |
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Capacity |
Btu/h |
9000 |
12000 |
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Cooling |
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Input |
W |
36.5 |
51.5 |
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Rated current |
A |
0.17 |
0.24 |
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Capacity |
Btu/h |
10000 |
13000 |
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Heating |
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Input |
W |
36.5 |
51.5 |
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Rated current |
A |
0.17 |
0.24 |
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Model |
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RPG13H |
RPG20D |
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Brand |
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Welling |
WELLING |
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Indoor fan motor |
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Input |
W |
36.5 |
51.5 |
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Capacitor |
uF |
1.2 |
1.5 |
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Speed(hi/mi/lo) |
r/min |
1180/1080/1000 |
1250/1000/800 |
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a.Number of rows |
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2 |
2 |
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b.Tube pitch(a)x row pitch(b) |
mm |
21x13.37 |
21×13.37 |
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c.Fin spacing |
mm |
1.3 |
1.3 |
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Indoor coil |
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d.Fin type (code) |
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Hydrophilic aluminium |
Hydr0philiC aluminium |
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e.Tube outside dia.and type |
mm |
φ7 INNEGROOVE TUBE |
φ7, innergroove tube |
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f.Coil length x height x width |
mm |
578X252X26.74 |
635×315×27.34 |
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g.Number of circuits |
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2 |
2 |
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Indoor air flow (Hi/Mi/Lo) |
m3/h |
500/460/410 |
680/520/420 |
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Indoor noise level (Hi/Mi/Lo) |
dB(A) |
40.5/37.4/34.6 |
42.0/35.0/30.0 |
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Dimension (W*H*D) |
mm |
750×250×214(210) |
815x282x217 |
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Indoor unit |
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Packing (W*H*D) |
mm |
837X340X295 |
915x360x295 |
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Net/Gross weight |
Kg |
9/11 |
10.5kg/12kg |
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Design pressure(Hi/Lo) |
MPa |
2.8/1.2 |
2.8/1.2 |
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Liquid side/ Gas side |
mm |
Ф6.35/Ф9.53 |
Ф6.35/Ф12.7 |
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Refrigerant piping |
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Max. refrigerant pipe length |
m |
10 |
10 |
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Max. difference in level |
m |
5 |
5 |
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Connection wiring |
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No |
No |
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Plug type |
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10A |
16A |
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Thermostat type |
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Electronic control |
Electronic control |
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Operation temp |
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17-30 |
17-30 |
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Ambient temp |
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18-45 |
18-45 |
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Application area |
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m2 |
14-21 |
18-26 |
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Page 4 of 33
2.2 Outdoor unit
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Model |
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M2OA-18HRN2 |
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M2OA-21HRN2 |
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M3OA-27HRN2 |
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M3OA-30HRN2 |
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Power supply |
Ph-V-Hz |
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1Ph,220-240V,50Hz |
1Ph,220-240V,50Hz |
1Ph,220-240V,50Hz |
1Ph,220-240V,50Hz |
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Capacity |
Btu/h |
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9000X2 |
9000+12000 |
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9000x3 |
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9000x2+12000 |
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Input |
W |
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1050X2 |
960+1100 |
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1050X3 |
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1800+1300 |
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Cooling |
Rated |
A |
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4.6X2 |
5+6 |
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4.6X3 |
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8.2+5.8 |
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current |
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EER |
Btu/w |
8.6 |
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8.8 |
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8.5, |
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8.9, 8.5, |
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.h |
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Capacity |
Btu/h |
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10600X2 |
10000+13000 |
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10600x3 |
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13000+20000 |
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Input |
W |
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1080X2 |
960+1140 |
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1080X3 |
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1750+1300 |
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Heating |
Rated |
A |
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4.8X2 |
5+6 |
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4.8X3 |
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8.2+5.8 |
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current |
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COP |
Btu/w |
9.8 |
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9.6 |
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9.6 |
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10.2/ 9.6 |
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.h |
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Moisture Removal |
L/h |
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1.0x2 |
1.0+1.2 |
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1.0x3 |
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1.0x2 +1.2 |
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Max. input consumption |
W |
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1330X2 |
1500+1900 |
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1330X3 |
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2200+1800 |
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Max. current |
A |
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6.0X2 |
7.0+8.0 |
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10.0 +8.2 |
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10.0 +8.2 |
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Starting current |
A |
19.8 |
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19.8+30 |
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40+30 |
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40+30 |
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Model |
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PG180X1C-4DZ3X2 |
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PG180X1C-4DZ3+P |
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PG295X2CS-4KU1; |
PG295X2CS-4KU1; |
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G225X2C-4FT |
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PG225X2C-4FT |
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PG225X2C-4FT |
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Type |
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ROTARY |
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Rotary |
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Rotary |
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Rotary |
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Brand |
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GD TOSHIBA |
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GD TOSHIBA |
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GD Toshiba |
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GD Toshiba |
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Capacity |
Btu/h |
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10800X2 |
10800+13650 |
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18080; |
13650 |
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18080; |
13650 |
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Input |
W |
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1000X2 |
1000+1310 |
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1760; |
1310 |
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1760; |
1310 |
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Rated |
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Compre |
current(RLA |
A |
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4.4X2 |
4.4+6.1 |
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8.5; |
6.1 |
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8.5; |
6.1 |
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) |
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ssor |
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Locked rotor |
A |
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24X2 |
24+31 |
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44, |
31 |
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44, |
31 |
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Amp(LRA) |
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Thermal |
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UP3QE0591-T61+U |
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Internal |
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Internal |
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protector |
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UP3QE0591-T61X2 |
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P3RE0591-T56 |
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Capacitor |
uF |
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25X2 |
25+35 |
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35uF/440VAC; |
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35uF/440VAC; |
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35uF/440VAC |
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35uF/440VAC |
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Refrigerant |
ml |
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400X2 |
400+ 480 |
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750; |
480 |
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750; |
480 |
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oil |
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Model |
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YDK69-6 |
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YDK69-6 |
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YDK50-4G1 |
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YDK50-4G1 |
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Outdoor |
Brand |
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WeiLing |
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WeiLing |
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Welling |
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Welling |
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fan |
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Input |
W |
154 |
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154 |
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107Wx2 |
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107Wx2 |
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motor |
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Capacitor |
uF |
4 |
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4 |
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4uFx2 |
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4uFx2 |
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Speed |
r/min |
900/670 |
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900/670 |
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1150 |
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1150 |
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Outdoor |
a.Number of rows |
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2 |
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2 |
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2 |
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2 |
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coil |
b.Tube pitch(a)x |
mm |
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25.4x22 |
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25.4x22 |
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row pitch(b) |
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25.4X22 |
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25.4X22 |
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Page 5 of 33
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c.Fin |
mm |
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1.5 |
1.5 |
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spacing |
1.7 |
1.7 |
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d.Fin type |
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HYDROPHILIC |
HYDROPHILIC |
Hydrophilic |
Hydrophilic |
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(code) |
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ALUMINIUM |
ALUMINIUM |
aluminium |
aluminium |
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e.Tube |
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Ф9.53 |
Ф9.53 |
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outside |
mm |
INNERGROOVE |
INNERGROOVE |
Ф9.53, Innergroove |
Ф9.53, Innergroove |
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dia.and type |
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TUBE |
TUBE |
tube |
tube |
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f.Coil length |
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x height x |
mm |
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813X812X44 |
813X812X44 |
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width |
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810X610X44 |
810X610X44 |
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g.Number of |
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5(A System);4(B |
5(A System);4(B |
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circuits |
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12 |
12 |
System) |
System) |
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Outdoor air flow |
m3/h |
1900 |
2070 |
1450x2 |
1450x2 |
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Outdoor noise level |
dB(A) |
58 |
58 |
60 |
62 |
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Dimension( |
mm |
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860X830X330 |
860X830X330 |
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W*H*D) |
895X345X655 |
895X345X655 |
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Outdoor |
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Packing |
mm |
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983X915X425 |
983X915X425 |
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unit |
(W*H*D) |
1050X470X720 |
1050X470X720 |
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Net/Gross |
Kg |
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weight |
73/77 |
60/65 |
90/94 |
90/94 |
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Refrigerant type |
g |
R407C/800X2 |
R407C/750+1000 |
R407C/ 1470+820 |
R407C/ 1470+820 |
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Design pressure(Hi/Lo) |
MPa |
2.8/1.2 |
2.8/1.2 |
2.6 |
2.6 |
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Liquid side/ |
mm(in |
Ф6.35/Ф9.53 |
Ф6.35/Ф9.53; Ф |
Ф6.35/Ф9.53;Ф |
Ф6.35/Ф9.53 |
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Gas side |
ch) |
6.35/Ф12.7 |
6.35/Ф12.7 |
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Refriger |
Max. |
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refrigerant |
m |
10 |
10 |
10 (each unit) |
10 (each unit) |
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ant |
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pipe length |
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piping |
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Max. |
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difference in |
m |
5 |
5 |
5 (each unit) |
5 (each unit) |
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level |
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Connection wiring |
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No |
No |
No |
No |
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Plug type |
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No |
NO |
No |
No |
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Thermostat type |
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Electronic control |
Electronic control |
Electronic control |
Electronic control |
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Operation temp |
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17-30 |
17-30 |
17~30 |
17~30 |
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Ambient temp |
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18~45(cooling); |
18~45(cooling); |
18~45(cooling); |
18~45(cooling); |
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-7~30(heating) |
-7~30(heating) |
-7~30(heating) |
-7~30(heating) |
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Application area |
m2 |
(14-21)x2 |
14-21; 18-26 |
(14-21)x3 |
(14-21)x2,16-24 |
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Page 6 of 33
3.Dimensions
3.1 Indoor unit
Panel A
D |
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B |
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C
Panel B
C
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A |
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B |
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A |
B |
C |
EL-KFR26G/TN2Y-A(B) |
214 |
750 |
250 |
EL-KFR36G/TN2Y-A(B) |
217 |
815 |
282 |
Page 7 of 33
3.2 Outdoor unit
Outdoor unit 18K/21K
Outdoor unit 27K/30K
Page 8 of 33
4.Refrigeration cycle diagram
“1 drive 3 system” is made up of one “1 drive 1 system” and one “1 drive 2 system”.
PMV1
PMV2
SV2 SV1
T2 |
2 |
1 |
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T1
Compressor
refrigeration distributor
1 drive 2 system
SV1 Primary four-way valve SV2 Secondary four-way valve PMV1 PMV2 Electronic expansive valve T1 T2 Indoor pipe temperature sensor
Condenser
Four-way valve
Evaporator
Compressor
1 drive 1 system
Notice For 1 drives 2 system, there are two individual refrigerant circuit and two compressors, but for the 1drive 2 system in the 1 drive three system, there is only one refrigerant circuit and only one compressor.
Page 9 of 33
5.Operation limits
5.1Cooling operation
Outdoor unit air temp. DB
45
COOLING
17
-7
0 17 32 Indoor air temp. DB
Note: 1.The chart is the result from the continuous operation under constant air temperature Condition. However, excludes the initial pull-down stage.
2.The operation range below the dashed is the result added the low ambient kit.
5.2Heating operation
Indoor air temp. DB
30
25
20
15
10
5
-5 5 15 25 Outdoor unit air temp. DB
Note : The chart is the result from the continuous operation under constant air temperature conditions. However, excludes the initial pull-down stage.
Page 10 of 33