Carrier 38GJQ Series - Conversion Joints; Refrigerant Piping

7
CONVERSION JOINTS
Some outdoor and indoor units include a package of conversion joints to facilitate the installation line sets as listed on the Parts List. These conversion joints are to be connected to the outdoor unit or the
indoor unit side as needed to match the line set size listed in Tables 18 and 19 on the refrigerant piping section.
REFRIGERANT PIPING
Line sets should be sized based on Tables 18 and 19. Use the Conversion Joints on the outdoor side or the indoor side as listed.
Table 18—Suction Line
Outdoor Model Number
38GJQC18---3 38GJQD24---3 38GJQF30---3 38GJQG36---3 38GJQG42---3 38GJQK48---3 38GJQL56---3
Suction Line
Connection
Outdoor
3/8 3/8 3/8 3/8 3/8 5/8 5/8
Indoor
Unit
Nominal Unit
Btuh
Indoor Model
Number
Suction Line
Connection
Indoor
CJ
Indoor
Side
Line
Set
CJ
Outdoor
Side
CJ
Indoor
Side
Line
Set
CJ
Outdoor
Side
CJ
Indoor
Side
Line
Set
CJ
Outdoor
Side
CJ
Indoor
Side
Line
Set
CJ
Outdoor
Side
CJ
Indoor
Side
Line
Set
CJ
Outdoor
Side
BP
Indoor
Side
Line
Set
BP
Outdoor
Side
BP
Indoor
Side
Line
Set
BP
Outdoor
Side
High Wall
9,000 40GRQB09B--3 1/2 1/2 to 3/8 3/8 N/A NA 1/2 3/8 to 1/2 NA 1/2 3/8 to 1/2 NA 1/2 3/8 to 1/2 NA 1/2 3/8 to 1/2 1/2 to 5/8 1/2 N/A 1/2 to 5/8 1/2 N/A
12,000 40GRQB12B--3 1/2 1/2 to 3/8 3/8 N/A NA 1/2 3/8 to 1/2 NA 1/2 3/8 to 1/2 NA 1/2 3/8 to 1/2 NA 1/2 3/8 to 1/2 1/2 to 5/8 1/2 N/A 1/2 to 5/8 1/2 N/A
18,000 40GRQB18B--3 5/8 5/8 to 1/2 1/2 3/8 to 1/2 5/8 to 1/2 1/2 3/8 to 1/2 5/8 to 1/2 1/2 3/8 to 1/2 5/8 to 1/2 1/2 3/8 to 1/2 N/A 5/8 N/A N/A 5/8 N/A
9,000 40GRQB09H--3 1/2 1/2 to 3/8 3/8 N/A NA 1/2 3/8 to 1/2 NA 1/2 3/8 to 1/2 NA 1/2 3/8 to 1/2 NA 1/2 3/8 to 1/2 1/2 to 5/8 1/2 N/A 1/2 to 5/8 1/2 N/A
12,000 40GRQB12H--3 1/2 1/2 to 3/8 3/8 N/A NA 1/2 3/8 to 1/2 NA 1/2 3/8 to 1/2 NA 1/2 3/8 to 1/2 NA 1/2 3/8 to 1/2 1/2 to 5/8 1/2 N/A 1/2 to 5/8 1/2 N/A
18,000 40GRQB18H--3 5/8 5/8 to 1/2 1/2 3/8 to 1/2 5/8 to 1/2 1/2 3/8 to 1/2 5/8 to 1/2 1/2 3/8 to 1/2 5/8 to 1/2 1/2 3/8 to 1/2 N/A 5/8 N/A N/A 5/8 N/A
9,000 40GJQB09B--3 1/2 1/2 to 3/8 3/8 NA N/A 1/2 3/8 to 1/2 N/A 1/2 3/8 to 1/2 N/A 1/2 3/8 to 1/2 N/A 1/2 3/8 to 1/2 1/2 to 5/8 1/2 N/A 1/2 to 5/8 1/2 N/A
12,000 40GJQB12B--3 1/2 1/2 to 3/8 3/8 NA N/A 1/2 3/8 to 1/2 N/A 1/2 3/8 to 1/2 N/A 1/2 3/8 to 1/2 N/A 1/2 3/8 to 1/2 1/2 to 5/8 1/2 N/A 1/2 to 5/8 1/2 N/A
18,000 40GJQB18B--3 5/8 5/8 to 1/2 1/2 3/8 to 1/2 5/8 to 1/2 1/2 3/8 to 1/2 5/8 to 1/2 1/2 3/8 to 1/2 5/8 to 1/2 1/2 3/8 to 1/2 N/A 5/8 N/A N/A 5/8 N/A
24,000 40GJQB24B--3 5/8 5/8 to 1/2 1/2 3/8 to 1/2 5/8 to 1/2 1/2 3/8 to 1/2 5/8 to 1/2 1/2 3/8 to 1/2 N/A 5/8 N/A N/A 5/8 N/A
Cassette
12,000 40GJQB12C--3 5/8 N/A 3/8 N/A N/A 3/8 N/A N/A 3/8 N/A N/A 3/8 N/A N/A 3/8 N/A 3/8 to 5/8 3/8 N/A 3/8 to 5/8 3/8 N/A
18,000 40GJQB18C--3 1/2 N/A 1/2 3/8 to 1/2 N/A 1/2 3/8 to 1/2 N/A 1/2 3/8 to 1/2 N/A 1/2 3/8 to 1/2 1/2 to 5/8 1/2 N/A 1/2 to 5/8 1/2 N/A
24,000 40GJQB24C--3 5/8 N/A 5/8 3/8 to 5/8 N/A 5/8 3/8 to 5/8 N/A 5/8 3/8 to 5/8 N/A 5/8 N/A N/A 5/8 N/A
Ducted
9,000 40GJQB09D--3 3/8 N/A 3/8 N/A N/A 3/8 N/A N/A 3/8 N/A N/A 3/8 N/A N/A 3/8 N/A 3/8 to 5/8 3/8 N/A 3/8 to 5/8 3/8 N/A
12,000 40GJQB12D--3 3/8 N/A 3/8 N/A N/A 3/8 N/A N/A 3/8 N/A N/A 3/8 N/A N/A 3/8 N/A 3/8 to 5/8 3/8 N/A 3/8 to 5/8 3/8 N/A
18,000 40GJQB18D--3 1/2 N/A 1/2 3/8 to 1/2 N/A 1/2 3/8 to 1/2 N/A 1/2 3/8 to 1/2 N/A 1/2 3/8 to 1/2 /2 to 5/8 1/2 N/A 1/2 to 5/8 1/2 N/A
21,000 40GJQB21D--3 5/8 N/A 5/8 3/8 to 5/8 N/A 5/8 3/8 to 5/8 N/A 5/8 3/8 to 5/8 N/A 5/8 N/A N/A 5/8 N/A
24,000 40GJQB24D--3 5/8 N/A 5/8 3/8 to 5/8 N/A 5/8 3/8 to 5/8 N/A 5/8 3/8 to 5/8 N/A 5/8 N/A N/A 5/8 N/A
Floor
Console
9,000 40GJQB09F--3 3/8 N/A 3/8 N/A N/A 3/8 N/A N/A 3/8 N/A N/A 3/8 N/A N/A 3/8 N/A 3/8 to 5/8 3/8 N/A 3/8 to 5/8 3/8 N/A
12,000 40GJQB12F--3 3/8 N/A 3/8 N/A N/A 3/8 N/A N/A 3/8 N/A N/A 3/8 N/A N/A 3/8 N/A 3/8 to 5/8 3/8 N/A 3/8 to 5/8 3/8 N/A
18,000 40GJQB18F--3 1/2 N/A 1/2 3/8 to 1/2 N/A 1/2 3/8 to 1/2 N/A 1/2 3/8 to 1/2 N/A 1/2 3/8 to 1/2 /2 to 5/8 1/2 N/A /2 to 5/8 1/2 N/A
NOTE:
CJ - Conversion Joint
BP - Branch Pipe
N/A - Not Applicable
Branch Boxes Required on Outdoor sizes 48 and 56 (Line Set from Outdoor unit to Branch Box = 5/8 in)