Pioneer lineset diameter selection guide
Introduction
Use this lineset diameter selection guide for Pioneer HVAC mini and multi-systems. Match the lineset diameter to your indoor unit by using the tables below.
For single-zone equipment, the connection diameter for the indoor and outdoor units will be the same.
For multi-zone equipment, the connection diameter will typically be 1/4"-3/8" for the first 3 valve sets and 1/4"-1/2" for valves sets 4 and 5.
Lineset Diameter Selection Guide
Quantum Series Inverter+ (WYS-17, WYS-19, WYS-20) and Inverter++ (WYS-22, CYB-22, RYB-22, UYB-22, FYB-22) Ductless and Ducted Mini Split Systems
Model Shorthand
|
First Two Letters
|
Actual Model Number Encompassed
|
Diameter
|
All 9,000 BTU Models (except for WS009AMFI22HLD or WS009AMFI22HLE)
|
WS, CB, RB
|
WS009AMFI17HLD, WS009GMFI17HLD, WS009AMFI19HLD, WS009GMFI19HLD, WS009AMFI20HLD, WS009GMFI20HLD, WS009GMFI22HLD, WS009GMFI22HLE, CB009GMFILCFHD, RB009GMFILCFHD, RB009GMFILDFHD, FB009GMFILCFHD |
1/4"-3/8"
|
All 12,000-18,000 BTU Models (along with WS009AMFI22HLD or WS009AMFI22HLE)
|
WS, CB, RB, FB, UB
|
WS009AMFI22HLD, WS009AMFI22HLE, WS012AMFI17HLD, WS012AMFI19HLD, WS012AMFI20HLD, WS012GMFI17HLD, WS012GMFI19HLD, WS012GMFI20HLD, WS012AMFI22HLD, WS012AMFI22HLE, WS012GMFI22HLD, WS012GMFI22HLE, WS018GMFI17HLD, WS018GMFI19HLD, WS018GMFI20HLD, WS018GMFI22HLD, WS018GMFI22HLE, CB012GMFILCFHD, CB018GMFILCFHD, RB012GMFILCFHD, RB012GMFILDFHD, RB018GMFILCFHD, RB018GMFILDFHD, FB012GMFILCFHD, FB012GMFILDFHE, UB018GMFILCFHD
|
1/4"-1/2"
|
All 24,000 BTU and Above Models
|
WS, CB, RB, UB
|
WS024GMFI17HLD, WS024GMFI19HLD, WS024GMFI20HLD, WS024GMFI22HLD, WS024GMFI22HLE, WS030GMFI17HLD, WS030GMFI20HLD, WS036GMFI17HLD, WS036GMFI20HLD, CB024GMFILCFHD, CB024GMFILCFHE, RB024GMFILCFHD, RB024GMFILDFHD, UB024GMFILCFHD, CB036GMFILCFHD, CB036GMFILCFHE, RB036GMFILCFHD, RB036GMFILDFHD, UB036GMFILCFHD, CB048GMFILCFHD, CB048GMFILCFHE, RB048GMFILCFHD, RB048GMFILDFHD, UB048GMFILCFHD
|
3/8"-5/8"
|
WS=Wall Units, CB=Ceiling Units, FB=Floor Units, UB=Floor/Ceiling Flex Units, RB=Duct Concealed Units
YN-M Multis (Quantum Inverter++ Multi Series (2, 3, 4, and 5 Zones)
Model Shorthand
|
Model Number
|
# of Circuits
|
Valve Size Layout
|
Dual-Zone
|
YN020GMFI22M2D, YN020GMFI22M2E
|
2
|
(2)Ā 1/4"-3/8"
|
Triple-Zone
|
YN030GMFI22M3D, YN030GMFI22M3E
|
3
|
(3)Ā 1/4"-3/8"
|
Quad-Zone
|
YN040GMFI22M4D, YN040GMFI22M4E
|
4
|
(3)Ā 1/4"-3/8" /Ā (1)Ā 1/4"-1/2"
|
Quint-Zone
|
YN050GMFI22M5D, YN050GMFI22M5E
|
5
|
(3)Ā 1/4"-3/8" /Ā (2)Ā 1/4"-1/2"
|
Note: All multi-zone outdoor units include adapters to connect different sized linesets for indoor units that are a part of a compatible combination (SeeĀ Matching Table For Multi-Zone).
Diamante (Essenza) Series (WYT-17) Ductless Single-Zone Wall-Mount Systems
Model Shorthand
|
First Two Letters
|
Actual Model Number Encompassed
|
Diameter
|
12,000-18,000 BTU Models
|
WT
|
WT012ALUI17HLD, WT012GLUI17HLD, WT018GLUI17HLD
|
1/4"-3/8"
|
24,000 BTU Models
|
WT
|
WT024GLUI17HLD
|
1/4"-1/2"
|
36,000 BTU Models
|
WT
|
WT036GLUI17HLD
|
1/4"-5/8"
|
WT=Wall Units
Diamante (Pro) Series (WYT-19) and (WYT-20) Ductless Single-Zone Wall-Mount Systems
Model Shorthand
|
First Two Letters
|
Actual Model Number Encompassed
|
Diameter
|
9,000-18,000 BTU Models
|
WT
|
WT009ALFI19HLD, WT009ALFI19HLE, WT009ALSI20HLF, WT009GLFI19HLD, WT009GLFI19HLE, WT009GLSI20HLF, WT012ALFI19HLD, WT012ALFI19HLE, WT012ALSI20HLF, WT012GLFI19HLD, WT012GLFI19HLE, WT012GLSI20HLF, WT018GLFI19HLD, WT018GLFI19HLE, WT018GLSI20HLF
|
1/4"-3/8"
|
24,000 BTU Models
|
WT
|
WT024GLFI19HLD, WT024GLFI19HLE, WT024GLSI20HLF
|
1/4"-1/2"
|
36,000 BTU Models
|
WT
|
WT030GLFI19HLE, WT030GLSI20HLF, WT036GLFI19HLD, WT036GLFI19HLE, WT036GLSI20HLF
|
1/4"-5/8"
|
WT=Wall Units
Diamante Ultra Series (WYT-22) and Quantum Ultra (WYT-24) and Quantum Hyperformance (WYT-25) Ductless Single and Multi-Zone Wall-Mount Systems
Model Shorthand
|
First Two Letters
|
Actual Model Number Encompassed
|
Diameter
|
9,000-12,000 BTU Models
|
WT
|
WT009ALFI22HLD, WT009ALSI24HLG, WT009GLFI22HLD, WT009GLSI24HLG, WT009GLSI25HLH, WT012ALFI22HLD, WT012ALSI24HLG, WT012GLFI22HLD, WT012GLSI24HLG, WT012GLSI25HLH
|
1/4"-3/8"
|
18,000 BTU Models
|
WT
|
WT018GLFI22HLD, WT018GLSI24HLG, WT018GLSI25HLH
|
1/4"-1/2"
|
24,000 BTU Models
|
WT
|
WT024GLFI22HLD, WT024GLSI24HLG, WT024GLSI25HLH
|
1/4"-5/8"
|
WT=Wall Units
Quantum Fresh (WYT-FA) Ductless Fresh Air Single Wall-Mount Systems
Model Shorthand
|
First Two Letters
|
Actual Model Number Encompassed
|
Diameter
|
12,000 BTU Models
|
WT
|
WT012GLUI25FVQ
|
1/4"-3/8"
|
WT=Wall Units
YN-L Multis (Diamante Ultra Multi Series (2, 3, and 4 Zones)
Model Shorthand
|
Model Number
|
# of Circuits
|
Valve Size Layout
|
Dual-Zone
|
YN020GLFI22M2D
|
2
|
(2)Ā 1/4"-3/8"
|
Triple-Zone
|
YN030GLFI22M3D
|
3
|
(3)Ā 1/4"-3/8"
|
Quad-Zone
|
YN040GLFI22M4D
|
4
|
(4)Ā 1/4"-3/8"
|
Note: All multi-zone outdoor units will include adapters to connect different sized linesets for indoor units that are a part of a compatible combination (See Page 4Ā MATCHING TABLE FOR MULTI-ZONE).
YN-L24 Multis (Quantum Ultra Multi Series (2, 3, 4, 5 Zones)
Model Shorthand
|
Model Number
|
# of Circuits
|
Valve Size Layout
|
Dual-Zone
|
YN020GLSI24M2G
|
2
|
(2)Ā 1/4"-3/8"
|
Triple-Zone
|
YN030GLSI24M3G
|
3
|
(3)Ā 1/4"-3/8"
|
Quad-Zone
|
YN040GLSI24M4G
|
4
|
(4)Ā 1/4"-3/8"
|
Quint-Zone | YN050GLSI24M5G |
5 |
(5)Ā 1/4"-3/8"
|
Note: All multi-zone outdoor units will include adapters to connect different sized linesets for indoor units that are a part of a compatible combination.
Quantum Ultra Series Light-Commercial Inverter++ (CYT-24, RYT-22, UYT-22) Ductless and Ducted Mini Split Systems
Model Shorthand
|
First Two Letters
|
Actual Model Number Encompassed
|
Diameter
|
All 9,000 and 12,000 BTU Models
|
CT, RT
|
CT009GLSILCFHG, RT009GLSILCFHG, CT012GLSILCFHG, RT012GLSILCFHG |
1/4"-3/8"
|
All 18,000 BTU Models
|
CT, RT, UT
|
CT018GLSILCFHG, RT018GLSILCFHG, UT018GLSILCFHG
|
1/4"-1/2"
|
All 24,000 BTU Models
|
CT, RT, UT
|
CT024GLSILCFHG, RT024GLSILCFHG, UT024GLSILCFHG
|
1/4"-5/8"
|
CT=Ceiling Units, UT=Floor/Ceiling Flex Units, RT=Duct Concealed Units
Hyperformance Series (WYF-25) Ductless Single-Zone Wall-Mount Systems
Model Shorthand
|
First Two Letters
|
Actual Model Number Encompassed
|
Diameter
|
9,000-12,000 BTU Models
|
WF
|
WF009GHFI25HLH, WF012GHFI25HLH
|
1/4"-3/8"
|
18,000 BTU Models
|
WF
|
WF018GHFI25HLH
|
1/4"-1/2"
|
24,000 BTU Models
|
WF
|
WF024GHFI25HLH
|
3/8"-5/8"
|
WF=Wall Units
Ducted Central Series (DYR) Split Heat Pump Systems
Model Shorthand
|
First Two Letters
|
Actual Model Number Encompassed
|
Diameter
|
24,000 BTU Models
|
DR
|
DR024GHFD18HT2, YH1824GHFD18R2
|
3/8"-5/8"
|
36,000 BTU Models
|
DR
|
DR036GHFD18HT2, YH3036GHFD18R2
|
3/8"-3/4"
|
48,000-56,000 BTU Models
|
DR
|
DR048GHFD18HT2, YH4248GHFD18R2, DR060GHFD18HT2, YH4860GHFD18R2
|
3/8"-7/8"
|
DR=Ducted Air Handler, YH=Central Split Condenser
Ducted Central VERTEX Series (DYC-18) Split Heat Pump Systems
Model Shorthand
|
First Two Letters
|
Actual Model Number Encompassed
|
Diameter
|
24,000 BTU and 36,000 BTU Models
|
DC
|
DC024GCSICDHRT, DC036GCSICDHRT, YD2436GCSI18RD
|
3/8"-3/4"
|
48,000-56,000 BTU Models
|
DC
|
DC048GCSICDHRT, DC060GCSICDHRT, YD4860GCSI18RD
|
3/8"-7/8"
|
DC=Ducted Air Handler, YD=Central Split Condenser
*Models continuously updated. All models are subject to change without notice.
Wrench/Tool Sizes Needed
The corresponding Wrench/Tool sizes needed to turn the flare nuts of the linesets are as follows:
Line Diameter
|
Wrench SizeĀ
|
1/4"
|
5/8"
|
3/8"
|
13/16"
|
1/2"
|
15/16"
|
5/8"
|
1-1/16"
|
3/4"
|
1-5/16"
|