To Connect The Power Supply - Daikin VRV IV+ Installer And User Reference Manual

6 | Installation

6.8.9 To connect the power supply

Installer and user reference guide
82
8~12 HP
X1M
c b a
a Power supply (possibility 1)
b Power supply (possibility 2)
c Power supply (possibility 3)
d Tie wrap
(a) Knockout hole has to be removed. Close the hole to avoid small animals or dirt from
entering.
NOTICE
Never connect the power supply to transmission wiring terminal block. Otherwise
the entire system may break down.
INFORMATION
Installation and routing in case the cool/heat selector is used: refer to the installation
manual of the cool/heat selector.
CAUTION
When connecting the power supply, the earth connection must be made before the
current-carrying connections are established. When disconnecting the power supply,
the current-carrying connections must be separated before the earth connection is.
The length of the conductors between the power supply stress relief and the
terminal block itself must be as such that the current-carrying wires are tautened
before the earth wire is in case the power supply is pulled loose from the stress
relief.
Tightening torque for the terminal screws:
Screw size
M8 (power terminal block)
M8 (ground)
14~20 HP
X1M
d
d
A
d
c
A
(a)
(a)
(a)
. Use conduit.
d
A
d
b a
Tightening torque (N•m)
5.5~7.3
RYYQ+RYMQ+RXYQ8~20U7Y1B
4P546228-1A – 2019.10
VRV IV+ heat pump