Johnson Controls (H, Engineering Manual

Page: 80 / 124

OUTDOOR UNITS
2-58
TC-16006
2.14.6 Piping Size between Outdoor Units
inch (mm)
Model Type 72 96
Piping Size a
Gas 7/8 (22.2) 7/8 (22.2)
Liquid 3/8 (9.52) 3/8 (9.52)
(Indoor Unit on Left Side) (Indoor Unit on Right Side)
inch (mm)
Model Type 144 168 192
Combination Unit
Outdoor Unit A 72 96 96
Outdoor Unit B 72 72 96
Piping Connection Kit MC-NP20A1
Piping Size
a
Gas 1-1/8 (28.58) 1-1/8 (28.58) 1-1/8 (28.58)
Liquid 5/8 (15.88) 5/8 (15.88) 5/8 (15.88)
b
Gas 7/8 (22.2) 7/8 (22.2) 7/8 (22.2)
Liquid 3/8 (9.52) 3/8 (9.52) 3/8 (9.52)
c
Gas 7/8 (22.2) 7/8 (22.2) 7/8 (22.2)
Liquid 3/8 (9.52) 3/8 (9.52) 3/8 (9.52)
* Install the outdoor unit and piping connections in accordance to whatever is applicable to your situation.
Refer to the table for the outdoor unit model, the piping connection kit model, and the piping diameter.
Base Unit
Two Units Combination
To Indoor Units
a
Outdoor Unit
Refrigerant Piping
To Indoor Units
Piping Connection Kit
a
b
c
Outdoor Unit A Outdoor Unit B
To Indoor Units Piping Connection Kit
a
b
c
Outdoor Unit B Outdoor Unit A