Daikin VRV III REMQ8P8Y1B, Руководство по установке, Страница: 18 / 34

Installation manual
13
REMQ8~16P8Y1B
VRVIII System air conditioner
4PW40598-1A
8.3. Power circuit and cable requirements
A power circuit (see table below) must be provided for connection of
the unit. This circuit must be protected with the required safety
devices, i.e. a main switch, a slow blow fuse on each phase and an
earth leakage breaker.
When using residual current operated circuit breakers, be sure to use
a high-speed type 300 mA rated residual operating current.
Point for attention regarding quality of the public electric power
supply
This equipment complies with respectively:
■
EN/IEC 61000-3-11
(1)
provided that the system impedance Z
sys
is less than or equal to Z
max
and
■
EN/IEC 61000-3-12
(2)
provided that the short-circuit power S
sc
is greater than or equal to the minimum S
sc
value
at the interface point between the user's supply and the public
system. It is the responsibility of the installer or user of the equipment
to ensure, by consultation with the distribution network operator if
necessary, that the equipment is connected only to a supply with
respectively:
■
Z
sys
less than or equal to Z
max
and
■
S
sc
greater than or equal to the minimum S
sc
value.
Be sure to install a main switch for the complete system.
8.4. General cautions
■
Up to 3 units can be connected by crossover power source
wiring between outdoor units. However, units of smaller capacity
must be connected downstream. For details, refer to the
technical data.
■
When connecting several units in VRV combination, the power
supply of each outdoor unit can also be connected separately.
Refer to the field wiring on the engineering data book for further
details.
■
Make sure to connect the power source wire to the power
source terminal block and to clamp it as shown in
figure 19 and
described in chapter "8.8. Field line connection: power wiring"
on page 15 .
■
For conditional connections, refer to the Technical Data.
■
As this unit is equipped with an inverter, installing a phase
advancing capacitor not only will deteriorate power factor
improvement effect, but also may cause capacitor abnormal
heating accident due to high-frequency waves. Therefore, never
install a phase advancing capacitor.
■
Keep power imbalance within 2% of the supply rating.
•
Large imbalance will shorten the life of the smoothing
capacitor.
• As a protective measure, the product will stop operating and
an error indication will be made, when power imbalance
exceeds 4% of the supply rating.
■
Follow the "electrical wiring diagram" supplied with the unit when
carrying out any electrical wiring.
■
Only proceed with wiring work after all power is shut off.
■
Always ground wires. (In accordance with national regulations of
the pertinent country.)
■
Do not connect the ground wire to gas pipes, sewage pipes,
lightning rods or telephone ground wires. This may cause
electric shock.
•
Combustion gas pipes: can explode or catch fire if there is a
gas leak.
• Sewage pipes: no grounding effect is possible if hard plastic
piping is used.
• Telephone ground wires and lightning rods: dangerous when
struck by lightning due to abnormal rise in electrical potential
in the grounding.
■
This unit uses an inverter and therefore generates noise, which
will have to be reduced to avoid interfering with other devices.
The outer casing of the product may take on an electrical charge
due to leaked electrical current, which will have to be discharged
with the grounding.
■
Be sure to install an earth leakage breaker. (One that can
handle high-frequency electrical noise.)
(This unit uses an inverter, which means that an earth leakage
breaker capable of handling high-frequency electrical noise
must be used in order to prevent malfunctioning of the earth
leakage breaker itself.)
■
Earth leakage breakers that are especially designed for
protecting ground-faults must be used in conjunction with main
switch and fuse for use with wiring.
■
Never connect the power supply in reversed phase.
The unit can not operate normally in reversed phase. If you
connect in reversed phase, replace two of the three phases.
Phase and
frequency Voltage
Minimum
circuit
ampere
Recommended
fuses
Transmission line
section
REYQ18 3 N~50 Hz 400 V 40.1 A 50 A 0.75~1.25 mm
2
REYQ20 3 N~50 Hz 400 V 41.2 A 50 A 0.75~1.25 mm
2
REYQ22 3 N~50 Hz 400 V 44.3 A 50 A 0.75~1.25 mm
2
REYQ24 3 N~50 Hz 400 V 45.4 A 50 A 0.75~1.25 mm
2
REYQ26 3 N~50 Hz 400 V 53.1 A 63 A 0.75~1.25 mm
2
REYQ28 3 N~50 Hz 400 V 54.2 A 63 A 0.75~1.25 mm
2
REYQ30 3 N~50 Hz 400 V 63.0 A 80 A 0.75~1.25 mm
2
REYQ32 3 N~50 Hz 400 V 63.0 A 80 A 0.75~1.25 mm
2
REYQ34 3 N~50 Hz 400 V 71.6 A 80 A 0.75~1.25 mm
2
REYQ36 3 N~50 Hz 400 V 72.7 A 80 A 0.75~1.25 mm
2
REYQ38 3 N~50 Hz 400 V 75.8 A 80 A 0.75~1.25 mm
2
REYQ40 3 N~50 Hz 400 V 76.9 A 80 A 0.75~1.25 mm
2
REYQ42 3 N~50 Hz 400 V 84.6 A 100 A 0.75~1.25 mm
2
REYQ44 3 N~50 Hz 400 V 85.7 A 100 A 0.75~1.25 mm
2
REYQ46 3 N~50 Hz 400 V 94.5 A 100 A 0.75~1.25 mm
2
REYQ48 3 N~50 Hz 400 V 94.5 A 100 A 0.75~1.25 mm
2
(1) European/International Technical Standard setting the limits for voltage changes,
voltage fluctuations and flicker in public low-voltage supply systems for equipment
with rated current
≤
75 A.
(2) European/International Technical Standard setting the limits for harmonic currents
produced by equipment connected to public low-voltage systems with input
current >16 A and
≤
75 A per phase.
Z
max
(
Ω
)
Minimum
S
sc
value
REYQ18 = REMQ8+REMQ10 0.27 2146 kVA
REYQ20 = REMQ8+REMQ12 0.27 2162 kVA
REYQ22 = REMQ12 0.25 1872 kVA
REYQ24 = REMQ12 0.25 1888 kVA
REYQ26 = REMQ16 0.23 2041 kVA
REYQ28 = REMQ16 0.23 2057 kVA
REYQ30 = REMQ16 0.22 2227 kVA
REYQ32 = REMQ16 0.22 2227 kVA
REYQ34 = REMQ8+REMQ16 0.23 3259 kVA
REYQ36 = REMQ8+REMQ16 0.23 3275 kVA
REYQ38 = REMQ16 0.22 2985 kVA
REYQ40 = REMQ16 0.22 3001 kVA
REYQ42 = REMQ16 0.22 3154 kVA
REYQ44 = REMQ16 0.22 3170 kVA
REYQ46 = REMQ16 0.22 3340 kVA
REYQ48 = REMQ16 0.22 3340 kVA
NOTE
■
Select the power supply cable in accordance with
relevant local and national regulations.
■
Wire size must comply with the applicable local
and national code.
■
Specifications for local wiring power cord and
branch wiring are in compliance with IEC60245.
■
WIRE TYPE H05VV(*)
*Only in protected pipes (use H07RN-F when
protected pipes are not used).