Engineering Manual

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
Multi F System Piping Connections
Figure 286:Possible Outdoor Unit or Branch Distribution Unit to Indoor Unit Connections.
1. Align the center of the piping sections and tighten the flare nut by hand.
2. Tighten the flare nut with a torque wrench, using the arrows on the wrench as a guide, until a click is heard.
3. Wrap insulation around the connection.
INSTALLATION & LAYOUT BEST PRACTICES
Refrigerant Piping System Layout
Due to our policy of continuous product innovation, some specications may change without notication.
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206 | DESIGN & PRACTICES
Multi F and Multi F MAX Indoor Unit Engineering Manual
MULTI
F
MAX
MULTI
F