5 Installation
Installation and operation manual
7
RXYSQ6TMYFK
VRV IV-S system air conditioner
4P524881-1 – 2018.02
Indoor unit capacity index
Refrigerant branch kit
x<200
KHRQ22M29H
INFORMATION
Maximum 8 branches can be connected to a header.
4.3
Preparing electrical wiring
4.3.1
Safety device requirements
The power supply must be protected with the required safety
devices, i.e. a main switch, a slow blow fuse on each phase and an
earth leakage protector in accordance with the applicable legislation.
Selection and sizing of the wiring should be done in accordance with
the applicable legislation based on the information mentioned in the
table below.
Model
Minimum
circuit
ampacity
Recommended
fuses
Power supply
RXYSQ6
22 A
25 A
3N~ 50 / 60 Hz
380-415 / 400 V
Transmission wiring
Transmission wiring
Vinyl cords with 0.75 to
1.25 mm² sheath or cables
(2‑core wires)
Maximum wiring length
(= distance between outdoor and
furthest indoor unit)
300 m
Total wiring length
(= distance between outdoor and
all indoors)
600 m
If the total transmission wiring exceeds these limits, it may
result in communication error.
5
Installation
5.1
Opening the units
5.1.1
To open the outdoor unit
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING
3×
5.2
Mounting the outdoor unit
5.2.1
To provide the installation structure
Prepare 4 sets of anchor bolts, nuts and washers (field supply) as
follows:
(mm)
>150
620
(485-495)
490
4× M12
a
a
Make sure not to cover the drain holes.
5.2.2
To install the outdoor unit
4× M12
5.2.3
To provide drainage
▪ Make sure that condensation water can be evacuated properly.
▪ Install the unit on a base to make sure that there is proper
drainage in order to avoid ice accumulation.
▪ Prepare a water drainage channel around the foundation to drain
waste water away from the unit.
▪ Avoid drain water flowing over the footpath, so that it does NOT
become slippery in case of ambient freezing temperatures.
▪ If you install the unit on a frame, install a waterproof plate within
150 mm of the bottom side of the unit in order to prevent water
from getting into the unit and to avoid drain water dripping (see the
following figure).
