950-0289revB - 20 - July 22, 2022
TUBING CONNECTION
System structure
Wall Mounted
Indoor Unit
Cassette
Indoor Unit
Duct
ed
Indoor Unit
Outdoor Unit
Floor / Ceiling
Indoor Unit
Console
Indoor Unit
Air Handler
Indoor Unit
For these multi-zone air conditioning systems, the outdoor units are able to operate up to five indoor units which
can be different types as shown above. The indoor units can be controlled by either the remote control or the
wall control. Wi-Fi control is available for wall mounted indoor units and optional for others. The outdoor unit will
run if any of the indoor units sends a request for heating or cooling. All indoor units will stop once the outdoor
unit is turned off.
Tubing Connection Size
INDOOR unit copper tubing
1/4"
3/8"
1/2"
5/8"
Wall-Mount,
Cassette,
Floor/ceiling,
Console, Ducted
，
Air Handler
6K / 9K
x
x
12K / 18K
x
x
24K
x
x
30K / 36K
x
x
OUTDOOR UNIT
Terminal
A
Terminal
B
Terminal
C
Terminal
D
Terminal
E
Adapter Included
MZ18H424ZMO /
HMZ18H424ZMO
1/4", 3/8" 1/4", 3/8"
3/8"F to 1/2
”M -2 pcs,
MZ27H424ZMO
1/4", 3/8" 1/4", 3/8" 1/4", 3/8"
3/8"F to 1/2
”M -3 pcs,
HMZ28H424ZMO
1/4", 1/2" 1/4", 3/8" 1/4", 3/8"
3/8"F to 1/2
”M -2 pcs, 1/2"F to 3/8”M -1 pc,
1/4"F to 3/8
”M -1 pc, 1/2"F to 5/8”M -1 pc
MZ36H424ZMO
1/4", 1/2" 1/4", 3/8" 1/4", 3/8" 1/4", 3/8"
3/8"F to 1/2
”M -3 pcs, 1/2"F to 3/8”M -1 pc,
1/4"F to 3/8
”M -1 pc, 1/2"F to 5/8”M -1 pc
HMZ36H424ZMO
1/4", 1/2" 1/4", 1/2" 1/4", 3/8" 1/4", 3/8"
3/8"F to 1/2
”M -2 pcs, 1/2"F to 3/8”M -2 pc,
1/4"F to 3/8
”M -2 pc, 1/2"F to 5/8”M -2 pc
MZ18H424ZMO /
HMZ18H424ZMO
1/4", 1/2" 1/4", 1/2" 1/4", 3/8" 1/4", 3/8" 1/4", 3/8"
3/8"F to 1/2
”M -3 pcs, 1/2"F to 3/8”M -2 pc,
1/4"F to 3/8
”M -2 pc, 1/2"F to 5/8”M -2 pc
Figure 19
