Air Conditioner Pair Coil/Copper Pipe Sizing Chart for Split System

Air Conditioner Pair Coil/Copper Pipe Sizing Chart for Split System

*Please seek professionals for Air Conditioning installation. Please do not DIY. 

There are 5 common sizes of copper pipes. See table:

Ø Diameter (in inches)  Ø Diameter (in mm)
1/4'' 6.35  mm
3/8'' 9.52  mm
1/2'' 12.70 mm
5/8'' 15.88 mm
3/4'' 19.05 mm

 

We have listed some popular brands Split System as below:

Please note: Check the latest brochures on each brand's official website for up-to-date refrigerant piping info.

Mitsubishi Heavy Industries- Avanti / Bronte Series:

Model Number Capacity Pair coil sizes
SRK17ZMP-S / DXK05Z5-S 1.7kw 1/4'' 3/8''
SRK20ZSA-W / DXK06ZSA-W 2.0kw 1/4'' 3/8''
SRK2ZSA-W / DXK09ZSA-W 2.5kw 1/4'' 3/8''
SRK35ZSA-W / DXK12ZSA-W 3.5kw 1/4'' 3/8''
SRK50ZSA-W / DXK18ZSA-W 5.0kw 1/4'' 1/2''
SRK63ZRA-W / DXK21ZRA-W 6.3kw 1/4'' 1/2''
SRK71ZRA-W / DXK24ZRA-W 7.1kw 1/4'' 5/8''
SRK80ZRA-W / DXK28ZRA-W 8.0kw 1/4'' 5/8''
SRK95ZRA-W / DXK33ZRA-W 9.5kw 3/8'' 5/8''

 

Mitsubishi Heavy Industries- Avanti Plus Series:

Model Number Capacity Pair coil sizes
SRK20ZSXA-W 2.0kw 1/4'' 3/8''
SRK25ZSXA-W 2.5kw 1/4'' 3/8''
SRK35ZSXA-W 3.5kw 1/4'' 3/8''
SRK50ZSXA-W 5.0kw 1/4'' 1/2''
SRK60ZSXA-W 6.0kw 1/4'' 1/2''

 

Mitsubishi Heavy Industries- Ciara Series:

Model Number Capacity Pair coil sizes
DXK05ZTLA-WF 1.5kw 1/4'' 3/8''
DXK07ZTLA-WF 2.0kw 1/4'' 3/8''
DXK09ZTLA-WF 2.5kw 1/4'' 3/8''
DXK12ZTLA-WF 3.3kw 1/4'' 3/8''
DXK18ZTLA-WF 5.0kw 1/4'' 1/2''
DXK21ZTLA-WF 6.3kw 1/4'' 1/2''
DXK24ZTLA-WF 7.1kw 1/4'' 1/2''

 

Mitsubishi Electric:

Model Number Capacity Pair coil sizes
MSZ-AP20VGD-A1 2.0 kw 1/4"  3/8"
MSZ-AP25VGD-A1 2.5 kw 1/4"  3/8"
MSZ-AP35VGD-A1 3.5 kw 1/4"  3/8"
MSZ-AP42VGD-A1 4.0 kw 1/4"  3/8"
MSZ-AP50VGD-A1 5.0 kw 1/4''  1/2''
MSZ-AP60VGD-A1 6.0 kw 1/4''  1/2''
MSZ-AP71VGD-A1 7.1 kw 1/4''  1/2''
MSZ-AP80VGD-A1 8.0 kw 1/4''  1/2''
MSZ-AS90VGD-A1 9.0 kw 1/4''  1/2''

  

Fujitsu - Lifestyle Next Series:

Model Number Capacity  Pair coil sizes
ASTH09KMTD-NXT 2.5 kw 1/4"  3/8"
ASTH12KMTD-NXT 3.5 kw 1/4"  3/8"
ASTH18KMTD-NXT 5.0 kw 1/4''  1/2''
ASTH22KMTD-NXT 6.0 kw 1/4''  1/2''
ASTH24KMTD-NXT 7.1 kw 1/4''  1/2''
ASTH30KMTD-NXT 8.5 kw 3/8''  5/8''
ASTH34KMTD-NXT 9.5 kw 3/8''  5/8''

 

Fujitsu - Lifestyle Range:

Model Number Capacity  Pair coil sizes
ASTG09KMTC 2.5 kw 1/4"  3/8"
ASTG12KMTC 3.5 kw 1/4"  3/8"
ASTG18KMTC 5.0 kw 1/4''  1/2''
ASTG22KMTC 6.0 kw 1/4''  1/2''
ASTG24KMTC 7.0 kw 1/4''  1/2''
ASTG30KMTC 8.5 kw 3/8''  5/8''
ASTG34KMTC 9.5 kw 3/8''  5/8''

 

Fujitsu - Comfort Series:

Model Number Capacity Pair coil sizes
ASTH09KNCA 2.5 kw 1/4"  3/8"
ASTH12KNCA 3.4 kw 1/4"  3/8"
ASTH14KNCA 4.2 kw 1/4''  1/2''
ASTH18KNTA 5.0 kw 1/4''  1/2''
ASTH22KNTA 6.0 kw 1/4''  1/2''
ASTH24KNTA 7.1 kw 1/4''  1/2''
ASTH30KNTA 8.5 kw 3/8''  5/8''
ASTH34KNTA 9.5 kw 3/8''  5/8''

 

Fujitsu - Classic Series:

Model Number Capacity Pair coil sizes
ASTG09LVCC 2.5 kw 1/4"  3/8"
ASTG12LVCC 3.5 kw 1/4"  3/8"
ASTG18LVCC 5.0 kw 1/4''  1/2''
ASTG22LVCC 6.3 kw 1/4''  5/8''
ASTG24LFCC 7.1 kw 1/4''  5/8''
ASTG30LFCC 8.0 kw 3/8''  5/8''
ASTG34LFCC 9.2 kw 3/8''  5/8''

 

Midea - Apollo Series:

Model Number Capacity Pair coil sizes
MFAB-20NC 2.0 kw 1/4"  3/8"
MFAB26NB/WB 2.6 kw 1/4"  3/8"
MFAB35NB/WB 3.5 kw 1/4''  1/2''
MFAB50NB/WB 5.0 kw 1/4''  1/2''
MFAB70NB/WB 7.0 kw 3/8''  5/8''
MFAB90NB/WB 9.0 kw 3/8''  5/8''

 

MIDEA - Gaia Series:

Model Number Capacity Pair coil sizes
MFCA26VA-N 2.6 kw 1/4" 3/8"
MFCA35VA-N 3.5 kw 1/4" 3/8"

 

Midea - Venus Series:

Model Number Capacity Pair coil sizes
MFAG20VA-N/W 2.0 kw 1/4"  3/8"
MFAG26VA-N/W 2.6 kw 1/4"  3/8"
MFAG35VA-N/W 3.5 kw 1/4"  3/8"
MFAG50VA-N/W 5.0 kw 1/4''  1/2''
MFAG60VA-N/W 6.0 kw 1/4''  1/2''
MFAG70VA-N/W 7.0 kw 1/4''  5/8''
MFAG80VA-N/W 8.0 kw 1/4''  5/8''

 

GREE - Bora Series:

Model Number Capacity Pair coil sizes
GWH09AAC-K6DNA1A/I 2.5 kw 1/4"  3/8"
GWH12AAC-K6DNA1F/I 3.4 kw 1/4"  3/8"
GWH18AAD-K6DNA1D/I 5.2 kw 1/4'' 1/2''
GWH24AAE-K6DNA1F/I 7.1 kw 1/4'' 5/8''
GWH32QF- K6DNC8D 9 kw 1/4'' 5/8''

 

GREE - Alto Hi-Wall Series:

Model Number Capacity Pair coil sizes
GWH09ATBXB-K6DNA1C I/O 2.7 kw 1/4"  3/8"
GWH12ATCXB-K6DNA1B I/O 3.5 kw 1/4"  3/8"
GWH18ATDXD-K6DNA1C I/O 5.2 kw 1/4'' 1/2''
GWH24ATEXF-K6DNA1E I/O 7.1 kw 1/4'' 1/2''
GWH28ATEXF -K6DNA1A I/O 8.2 kw 1/4'' 1/2''

 

Daikin - LITE Series:

Model Number Capacity Pair coil sizes
FTXV20WVMA / FTXF20WVMA 2.0 kw 1/4"  3/8"
FTXV25WVMA / FTXF25WVMA 2.5 kw 1/4"  3/8"
FTXV35WVMA / FTXF35WVMA 3.5 kw 1/4"  3/8"
FTXV46WVMA / FTXF46WVMA 4.0 kw 1/4'' 1/2''
FTXF46WVMA 4.6 kw 1/4'' 1/2''
FTXV50WVMA / FTXF50WVMA 5.0 kw 1/4'' 1/2''
FTXV60WVMA 6.0 kw 1/4'' 1/2''
FTXV71WVMA / FTXF71WVMA

7.0 kw

 3/8''  5/8''
FTXV85LVMA 8.5 kw 3/8''  5/8''
FTXV95LVMA 9.5 kw 3/8''  5/8''

 

Panasonic - Z Series / RZ Series:

Model Number Capacity Pair coil sizes
CS-Z25XKR / CS-Z25VKR / CS-RZ25XKRW /CS-RZ25WKR 2.5 kw 1/4"  3/8"
CS-Z35XKR / CS-Z35VKR / CS-RZ35XKRW / CS-RZ35WKR 3.5 kw 1/4"  3/8"
CS-Z42XKR / CS-Z42VKR / CS-RZ42XKRW / CS-RZ42WKR 4.2 kw 1/4'' 1/2''
CS-Z50XKR / CS-Z50VKR / CS-RZ50XKRW / CS-RZ50WKR 5.0 kw 1/4'' 1/2''
CS-Z60XKR / CS-Z60VKR / CS-RZ60XKRW / CS-RZ60WKR 6.0 kw 1/4'' 1/2''
CS-Z71XKR / CS-Z71VKR / CS-RZ71XKRW / CS-RZ71WKR 7.1 kw 1/4'' 5/8''
CS-Z80XKR / CS-Z80VKR / CS-RZ80XKR / CS-RZ80WKR 8.0 kw 1/4'' 5/8''

 

KELVINATOR - Reverse Cycle: 

Model Number Capacity Pair coil sizes
KSD25HWJ 2.5 kw 1/4" 3/8"
KSD35HWJ 3.5 kw 1/4" 1/2"
KSD50HWJ 5.0 kw 1/4'' 1/2''
KSD71HWJ 7.1 kw 3/8'' 5/8''
KSD90HWJ 9.0 kw 3/8'' 5/8''

 

TOSHIBA - Seiya Hi-Wall Split System: 

Model Number Capacity Pair coil sizes
RAS-07E2KV2G-A 2.0 kw 1/4" 3/8"
RAS-10E2KV2G-A 2.5 kw 1/4" 3/8"
RAS-13E2KV2G-A 3.5 kw 1/4" 3/8"
RAS-16E2KV2G-A 4.2 kw 1/4'' 1/2''
RAS-18E2KV2G-A 5.0 kw 1/4'' 1/2''
RAS-22E2KV2G-A 6.0 kw 1/4'' 1/2''
RAS-24E2KV2G-A 7.1 kw 1/4'' 1/2''

 

TOSHIBA - Seiya Classic Hi-Wall Split System: 

Model Number Capacity Pair coil sizes
RAS-07E2KVG-A 2.0 kw 1/4" 3/8"
RAS-10E2KVG-A 2.5 kw 1/4" 3/8"
RAS-13E2KVG-A 3.5 kw 1/4" 3/8"
RAS-16E2KVG-A 4.2 kw 1/4'' 1/2''
RAS-18E2KVG-A 5.0 kw 1/4'' 1/2''
RAS-22E2KVG-A 6.0 kw 1/4'' 1/2''
RAS-24E2KVG-A 7.1 kw 1/4'' 1/2''
RAS-30E2KVG-A 8.0 kw 3/8''  5/8''
RAS-34E2KVG-A 9.0 kw 3/8''  5/8''
RAS-36E2KVG-A 10.0 kw 3/8''  5/8''

 

TOSHIBA - Shorai Edge Inverter Hi-Wall Split System: 

Model Number Capacity Pair coil sizes
RAS-07E2KVSG-A 2.0 kw 1/4" 3/8"
RAS-10E2KV2G-A 2.5 kw 1/4" 3/8"
RAS-13E2KV2G-A 3.5 kw 1/4" 3/8"
RAS-16E2KV2G-A 4.2 kw 1/4'' 1/2''
RAS-18E2KV2G-A 5.0 kw 1/4'' 1/2''
RAS-22E2KV2G-A 6.0 kw 1/4'' 1/2''
RAS-24E2KV2G-A 7.1 kw 1/4'' 1/2''

 

TOSHIBA - Haori Inverter Hi-Wall Split System:

Model Number Capacity Pair coil sizes
RAS-B10E2KVRG-A 2.5 kw 1/4" 3/8"
RAS-B13E2KVRG-A 3.5 kw 1/4" 3/8"
RAS-B16E2KVRG-A 4.6 kw 1/4'' 1/2''

 

SAMSUNG - AI Smart AIRISE WindFree™ Purification System: 

Model Number Capacity Pair coil sizes
AR09BXECNWKNSA 2.5 kw 1/4" 3/8"
AR12BXECNWKNSA 3.5 kw 1/4" 3/8"
AR18BXECNWKNSA 5.0 kw 1/4'' 1/2''
AR24BXECNWKNSA 7.0 kw 1/4'' 5/8''
AR30BXECNWKNSA 8.0 kw 1/4'' 5/8''

 

SAMSUNG - AI Smart GEO WindFree™ Purification System: 

Model Number Capacity Pair coil sizes
AR09BXEABWKNSA 2.5 kw 1/4" 3/8"
AR12BXEABWKNSA 3.5 kw 1/4" 3/8"
AR18BXEABWKNSA 5.0 kw 1/4'' 1/2''
AR24BXEABWKNSA 7.0 kw 1/4'' 5/8''
AR30BXEABWKNSA 8.0 kw 1/4'' 5/8''

 

SAMSUNG - Geo+ Split System, Tri-Care Purification: 

Model Number Capacity Pair coil sizes
AR09BXGYCWKNSA 2.5 kw 1/4" 3/8"
AR12BXGYCWKNSA 3.5 kw 1/4" 3/8"
AR18BXGYCWKNSA 5.0 kw 1/4'' 1/2''
AR24BXGYCWKNSA 6.8 kw 1/4'' 5/8''
AR30BXGYCWKNSA 8.0 kw 1/4'' 5/8''

 

 SAMSUNG - Bedarra Split System, DRED: 

Model Number Capacity Pair coil sizes
AR09AXHQAWKNSA 2.5 kw 1/4" 3/8"
AR12AXHQAWKNSA 3.5 kw 1/4'' 1/2''
AR18AXHQAWKNSA 5.1 kw 1/4'' 1/2''
AR24AXHQAWKNSA 7.1 kw 3/8''  5/8''

 

LG - High Efficiency Reverse Cycle: 

Model Number Capacity Pair coil sizes
WH09SK-18 2.5 kw 1/4" 3/8"
WH12SK-18 3.5 kw 1/4" 3/8"
WH18SL-23 5.0 kw 1/4'' 1/2''
WH21SL-23 6.1 kw 3/8''  5/8''
WH24SL-23 7.1 kw 3/8''  5/8''
WH30SR-18 8.5 kw 3/8''  5/8''
WH34SR-18 9.4 kw 3/8''  5/8''

 

LG - Smart Series: 

Model Number Capacity Pair coil sizes
WH09TWS 2.6 kw 1/4" 3/8"
WH12TWS 3.4 kw 1/4" 3/8"
WH18TWS 4.8 kw 1/4'' 1/2''
WH24TWS 6.3 kw 1/4'' 5/8''

 

Hisense - V Series:

Model Number Capacity Pair coil sizes
HAWV9KRD 2.5 kw 1/4" 3/8"
HAWV12KRD 3.5 kw 1/4" 3/8"
HAWV18KR 5.0 kw 1/4'' 1/2''
HAWV24KR 7.1 kw 3/8'' 5/8''
HAWV28KR 8.0 kw 3/8'' 5/8''

 

Hisense - J Series:

Model Number Capacity Pair coil sizes
HAWJ9KR 2.5 kw 1/4" 3/8"
HAWJ12KR 3.5 kw 1/4" 3/8"
HAWJ18KR 5.0 kw 1/4'' 1/2''
HAWJ24KRP 7.1 kw 1/4'' 1/2''
HAWJ28KR 8.0 kw 3/8'' 5/8''

 

Teco - Platinum 3D Series:

Model Number Capacity Pair coil sizes
TWS26H3DVJT/TSO26H3DVJT 2.6 kw 1/4" 3/8"
TWS35H3DVJT/TSO35H3DVJT 3.5 kw 1/4'' 1/2''
TWS52H3DVJT/TSO52H3DVJT 5.2 kw 1/4'' 1/2''
TWS72H3DVJT/TSO72H3DVJT 7.2 kw 1/4'' 5/8''
TWS88H3DVJT/TSO88H3DVJT 8.8 kw 1/4'' 5/8''

 

Teco - Comfort Series:

Model Number Capacity Pair coil sizes
TWS25HVHT/TSO25HVHT 2.5 kw 1/4" 3/8"
TWS32HVHT/TSO32HVHT 3.2 kw 1/4" 3/8"
TWS52HVHT/TSO52HVHT 5.2 kw 1/4" 3/8"
TWS71HVHT/TSO71HVHT 7.1 kw 1/4'' 5/8''

 

Carrier - Indigo Inverter Hi Wall:

Model Number Capacity Pair coil sizes
42QAG020N8/38QAG020N8 2.0 kw 1/4" 3/8"
42QAG026N8/38QAG026N8 2.6 kw 1/4" 3/8"
42QAG035N8/38QAG035N8 3.5 kw 1/4" 3/8"
42QAG050N8/38QAG050N8 5.0 kw 1/4'' 1/2''
42QAG060N8/38QAG060N8 6.0 kw 1/4'' 1/2''
42QAG070N8/38QAG070N8 7.0 kw 1/4'' 5/8''
42QAG080N8/38QAG080N8 8.0 kw 1/4'' 5/8''

 

Carrier - Allure Plus Inverter Hi Wall:

Model Number Capacity Pair coil sizes
53QHG020N8-1 2.0 kw 1/4" 3/8"
53QHG026N8-1 2.6 kw 1/4" 3/8"
53QHG035N8-1 3.5 kw 1/4" 3/8"
53QHG050N8-1 5.0 kw 1/4'' 1/2''
53QHG060N8-1 6.0 kw 1/4'' 1/2''
53QHG070N8-1 7.0 kw 1/4'' 5/8''
53QHG080N8-1 8.0 kw 1/4'' 5/8''

 

Westinghouse:

Model Number Capacity Pair coil sizes
WSD27HWA 2.7 kw 1/4" 3/8"
WSD36HWA 3.6 kw 1/4" 1/2''
WSD51HWA 5.1 kw 1/4'' 1/2''
WSD73HWA 7.3 kw 1/4'' 5/8''
WSD91HWA 9.1 kw 3/8'' 5/8''

 

Rinnai - J Series:

Model Number Capacity Pair coil sizes
HSNRJ25B1 2.6 kw 1/4" 3/8"
HSNRJ35B1 3.5 kw 1/4" 1/2''
HSNRJ50B1 5.2 kw 1/4'' 1/2''
HSNRJ70B1 7.0 kw 1/4'' 5/8''
HSNRJ80B1 8.0 kw 1/4'' 5/8''

 

Rinnai - PB Series:

Model Number Capacity Pair coil sizes
HSNRP26B 2.6 kw 1/4" 3/8"
HSNRP35B 3.5 kw 1/4" 3/8"
HSNRP50B 5.2 kw 1/4'' 1/2''
HSNRP60B 6.0 kw 1/4'' 1/2''
HSNRP70B 7.0 kw 1/4'' 5/8''
HSNRP80B 8.0 kw 1/4'' 5/8''

 

Rinnai - T Series:

Model Number Capacity Pair coil sizes
HSNRT25B 2.5kw 1/4" 3/8"
HSNRT35B 3.5 kw 1/4" 1/2''
HSNRT50B 5.0 kw 1/4'' 1/2''
HSNRT70B 7.0 kw 1/4'' 5/8''
HSNRT80B 8.0 kw 1/4'' 5/8''