Daikin VRV-WII FXYCP30MY1 Installation Procedure page 18

1 Installation of outdoor
1 - 7 Field wiring
1 - 7 - 4 Examples
[Setting the cool/heat operation type]
1 Performing cool/heat setting with the remote controller connected to the indoor unit.
Keep the COOL/HEAT selector switch (DS1) on the outside unit PC board (A1P) at the factory setting position OFF.
O
u
t
To indoor unit
On
Off
Remote controller
2 Performing cool/heat setting with the COOL/HEAT selector.
Connect the COOL/HEAT selector (optional) to the A/B/C terminals and set the COOL/HEAT selector switch (DS1) on the outside unit PC board
(A1P) to ON.
O
u
t
On
Off
COOL/HEAT selector
• For the above wiring, always use sheathed vinyl cords with 0.75 to 1.25 mm2 or cables (2 core wires). (3 core wire are allowable for the COOL/
HEAT selector only.)
• All transmission wire is field supply.
• If the following limits should be exceeded, be careful that any abnormal transmission may be caused;
Maximum wiring length ................................1000 m or less
Total wiring length .......................................2000 m or less
Maximum branching ....................................16 branching or less
Wire length between outside unit ................30 m or less
• Never connect power supply to any connection wiring and its terminal block, otherwise the entire system may be damaged.
• Up to 16 branches are possible for transmission wiring. However no branch is allowed after branch.
Branch
Branch after branch
• The wiring to the indoor units must be connected to the F1/F2 (To IN/D UNIT) terminals on the PC board in the outside unit.
• Installation procedure
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• VRV Systems • Installation procedure
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