Heat Controller A-VFH24TA-1 Installation, Operation & Maintenance Manual page 13

Heat Controller
Refrigerant Line Set Installation
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
VFH42PA-1 Outdoor
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
A 1/4" (6.35mm)
B 1/4" (6.35mm)
C n/a
D n/a
E n/a
Gas Connections 18K
A 3/8" (9.52mm)
B 3/8" (9.52mm)
C
n/a
D n/a
E n/a
Indoor Unit Liquid
B-VFH09MA-1
B-VFH12MA-1
B-VFH18MA-1
1/4" (6.35mm)
B-VFH12CA-1
B-VFH18CA-1
B-VFH24CA-1 3/8" (9.52mm)
13
VFH InverterFlex
24K 30K
1/4" (6.35mm) 1/4" (6.35mm)
1/4" (6.35mm) 1/4" (6.35mm)
1/4" (6.35mm) 1/4" (6.35mm)
n/a 1/4" (6.35mm)
n/a n/a
24K 30K
3/8" (9.52mm) 3/8" (9.52mm)
3/8" (9.52mm) 3/8" (9.52mm)
3/8" (9.52mm) 3/8" (9.52mm)
n/a 3/8" (9.52mm)
n/a n/a
Gas
1/2" (12.7mm)
5/8" (15.9mm)
3/8" (9.52mm)
A-VFH36QA-1 and A-
1/2" (12.7mm)
Units:
5/8" (15.9mm)
- Outdoor Ductless Mini-Split
®
36K 42K
1/4" (6.35mm) 1/4" (6.35mm)
1/4" (6.35mm) 1/4" (6.35mm)
1/4" (6.35mm) 1/4" (6.35mm)
3/8" (9.52mm) 1/4" (6.35mm)
n/a 3/8" (9.52mm)
36K 42K
3/8" (9.52mm) 3/8" (9.52mm)
3/8" (9.52mm) 3/8" (9.52mm)
1/2" (12.7mm) 1/2" (12.7mm)
5/8" (15.9mm) 1/2" (12.7mm)
n/a 5/8" (15.9mm)