Daikin VRV II Series Design, Installation & Testing Instructions page 58

Installation
Floor Standing/
Concealed Floor
Standing Type
(FXLQ-M, FXNQ-
M)
3.2.10 Electrical Work
Control Wiring
1. Compatible types of wire
Wiring Type
Notes:
1. Sheathed wire may be used for transmission wirings, but they do not comply with EMI (Electromagnetic
2. For FXYAP indoor unit, use sheathed wire.
2. Problems arising from the use of unsuitable cable
a) When cable less than 0.75 mm² is used
b) When cable more than 1.25 mm² is used
c) For multi-core cable
52
Wiring Specifications
Shield Wire (2 wire) (See NOTE 1, 2)
Size 0.75~1.25 mm²
lnterference) (EN55014). When using sheathed wire. EMI must conform to Japanese standards
stipulated in the Electric Appliance Regulatory Act. (If using a sheathed wire, the grounding shown in
the figure on the left is unnecessary.)
Where the control wiring is particularly long the transmission signals may, for example, become
unstable and the terminal relay cease to function. (Reduced voltage) The control system may become
unduly subject to noise interference.
When wiring indoor units together, the terminal block will not be able to accommodate 2 cables
simultaneously if the cables are larger than 1.25 mm².
The greater play between wires, the more the transmitted wave is distorted and transmission
destabilized.
Si39-303
General Information