Refrigerant line set installation, A-vfh outdoor liquid-gas connection sizes, B-vfh indoor liquid-gas connection sizes – Comfort-Aire A-VFH42PA-1 User Manual
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Heat Controller
VFH InverterFlex
®
- Outdoor Ductless Mini-Split
Due to the mix and match nature of the InverterFlex™ system, reducing and/or
expansion flare connection subassemblies are provided with some models to
accommodate for the different flare connections sizes between indoor and outdoor
units.
The subassemblies provided accommodate for most typical applications, however
the installing contractor may need to purchase additional subassemblies for certain
applications.
A-VFH Outdoor Liquid-Gas Connection Sizes
B-VFH Indoor Liquid-Gas Connection Sizes
Subassemblies for
A-VFH36QA-1 and A-
VFH42PA-1 Outdoor
Units:
The A-VFH36QA-1 and A-VFH42PA-1 outdoor units come with a set of copper elbow subassemblies with a female flare
nut x male flare fitting.
Liquid Connections
18K
24K
30K
36K
42K
A
1/4” (6.35mm)
1/4” (6.35mm)
1/4” (6.35mm)
1/4” (6.35mm)
1/4” (6.35mm)
B
1/4” (6.35mm)
1/4” (6.35mm)
1/4” (6.35mm)
1/4” (6.35mm)
1/4” (6.35mm)
C
n/a
1/4” (6.35mm)
1/4” (6.35mm)
1/4” (6.35mm)
1/4” (6.35mm)
D
n/a
n/a
1/4” (6.35mm)
3/8” (9.52mm)
1/4” (6.35mm)
E
n/a
n/a
n/a
n/a
3/8” (9.52mm)
Gas Connections
18K
24K
30K
36K
42K
A
3/8” (9.52mm)
3/8” (9.52mm)
3/8” (9.52mm)
3/8” (9.52mm)
3/8” (9.52mm)
B
3/8” (9.52mm)
3/8” (9.52mm)
3/8” (9.52mm)
3/8” (9.52mm)
3/8” (9.52mm)
C
n/a
3/8” (9.52mm)
3/8” (9.52mm)
1/2” (12.7mm)
1/2” (12.7mm)
D
n/a
n/a
3/8” (9.52mm)
5/8” (15.9mm)
1/2” (12.7mm)
E
n/a
n/a
n/a
n/a
5/8” (15.9mm)
Indoor Unit
Liquid
Gas
B-VFH09MA-1
1/4” (6.35mm)
1/2” (12.7mm)
B-VFH12MA-1
B-VFH18MA-1
5/8” (15.9mm)
B-VFH12CA-1
3/8” (9.52mm)
B-VFH18CA-1
1/2” (12.7mm)
B-VFH24CA-1
3/8” (9.52mm) 5/8” (15.9mm)
Refrigerant Line Set Installation