35
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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MAX
MULTI
F
MULTI
F
Flare nut
Piping
1. 3/8 in. to 3/8 in. Connection
2. 3/8 in. to 1/2 in.
Connection
Flare side to
branch distribution unit or ODU
Flare side to indoor unit
Ø3/8 in.
Flare side to indoor unit or
pipe to indoor unit
Ø1/2 in.
Connection socket
Flare nut
Piping
Ø3/8 in.
Ø3/8 in.
Spanner
Field Piping
Flare nut
Torque
wrench
3. 1/2 in. to 5/8 in.
Connection
Ø5/8 in.
Connection socket
Flare nut
Piping
Ø1/2 in.
4. 1/4 in. to 3/8
Connection
Flare side to indoor unit
Ø3/8 in.
Connection socket
Flare nut
Piping
Ø1/4 in.
Flare
side to
branch distribution unit or ODU
Flare side to indoor unit
Flare
side pipe
from branch distribution unit or ODU
Flare
side to
branch distribution unit or ODU
Figure 45: Connection Socket Diagram.
PIPING CONNECTIONS
IDU to ODU
Multi F MAX Outdoor Unit System Piping Connections, continued.
Table 30: Ceiling Cassette Indoor Unit Pipe Sizes.
Table 31: Ceiling Cassette Indoor Unit Piping Connections.
Connection sockets (included as a factory-supplied accessory with the indoor units) may need to be used when piping the indoor units to the
branch distribution unit.
Indoor Unit Capacity
Vapor (in., OD)
Liquid (in.,
OD)
A
B
A
B
18,000 Btu/h
Ø3/8 → Ø1/2
N/A
Connection Socket
A
B
Indoor Unit
Capacity
Vapor Line
Piping Size (in., OD)
Liquid Line
Piping Size (in., OD)
7,000 Btu/h
Ø3/8
Ø1/4
9,000 Btu/h
12,000 Btu/h
18,000 Btu/h
Ø1/2
Table 32:
Connection Socket Dimensions.
Indoor Unit Capacity
Vapor Line
Conn. (in., OD)
Liquid Line
Conn. (in., OD)
7,000 Btu/h
Ø3/8
Ø1/4
9,000 Btu/h
12,000 Btu/h
18,000 Btu/h
Ø1/2
Ø1/4
Figure 46: Possible Outdoor Unit or Branch Distribution Unit (Multi F MAX only) to Indoor Unit Connections.
