Daikin VRV System - When the Power Goes from Outdoor Unit to Outdoor Unit

2
• Systems • Installation
15
• Installation
2 Field wiring
2-1 cooling only / heat pump
2-1-6 Picking power line and transmission line
When the power goes from outdoor unit to outdoor unit
•Pass the power wiring which goes between the outdoor units through the bottom after securing it to the power wiring using cramping material
so that it does not come into contact with the shut-off valve and the piping.
CAUTION
1 Be sure to keep the power line and transmission line apart from each other.
2 Be careful about polarity of the transmission line.
3Make sure that the transmission line is clamped as shown in the figure in chapter “Field line connection”.
4 Check that wiring lines do not make contact with refrigerant piping.
5 Firmly close the lid and arrange the electrical wires so as to prevent the lid or other parts from coming loose.
Power
Manual switch
(Switch/Fuse)
Ground wire
Ground terminal
Power
terminal
block
Unit A Unit B Unit C
Power wiring between
outdoor units
Power wiring between
outdoor units
Ground branch wiring
To Unit B
Ground-fault circuit interrupter
(For use with high frequencies)
Secure with
cramping
material.
Power wiring -
Ground wire
Power wiring between
outdoor units · Ground
wire
When connecting the local branch
piping from the front, pass the wiring
through the bottom of the piping.
Pass the cramping material through the gap
at the bottom of the supporting pillar and
securing the wiring.
Pass the wiring under the piping in
order to prevent it coming into contact
with narrow piping.
(V2890)