Installation manual
17
RZQG71~140L + RZQSG100~140L
Split system air conditioners
4P339538-1A – 2014.03
14.3. Precautions on wiring of power supply and inter-
unit wiring
Use a round crimp-style terminal for connection to the power
supply terminal board. In case it cannot be used due to
unavoidable reasons, be sure to observe the following
instruction.
- Do not connect wires of different gauge to the same power
supply terminal. (Looseness in the connection may cause
overheating.)
- When connecting wires of the same gauge, connect them
according to the below figure.
Use the correct screwdriver to tighten the terminal screws.
Small screwdrivers can damage the screw head and prevent
appropriate tightening.
Over-tightening the terminal screws can damage the screws.
See the table below for tightening torques for the terminal
screws.
Refer to the installation manual attached to the indoor unit for
wiring of indoor units, etc.
Attach an earth leakage breaker and fuse to the power supply
line.
(See figure 9)
I
Pair
II
Twin
III
Triple
IV
Double twin
M
Master
S
Slave
1
Earth leakage breaker
2
Fuse
3
Remote controller
In wiring, make certain that prescribed wires are used, carry out
complete connections, and fix the wires so that outside forces
are not applied to the terminals.
14.4. Specifications of standard wiring components
Only for RZQ(S)G*V1 + R125Y1:
Equipment complying with EN/IEC 61000-3-12
(1)
.
Only for RZQG100~140Y1 + RZQSG140Y1:
Point for attention regarding quality of the public electric
power supply
This equipment complies with EN/IEC 61000-3-12
(1)
provided
that the short-circuit power S
sc
is greater than or equal to
1170 kVA 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
a short-circuit power S
sc
greater than or equal to 1170 kVA.
Above indicated value is the most stringent value. Refer to
databooks for specific product-data.
Tightening torque (N•m)
M4 (X1M)
1.2~1.8
M4 (EARTH)
1.2~1.4
M5 (X1M)
2.0~3.0
M5 (EARTH)
2.4~2.9
1 2 3
1
Round pressure terminal
2
Cut out section
3
Cup washer
RZQG
71V1
100V1 125V1 140V1
71Y1
100Y1 125Y1 140Y1
Minimum circuit
amps (MCA)
(a)
(a) Stated values are maximum values (see electrical data of combination with
indoor units for exact values).
20.6
32.0
33.5
14.0
21.0
22.5
Recommended
field fuse (A)
25
40
16
25
Wire type
(b)
(b) Only in protected pipes, use H07RN-F when protected pipes are not used.
H05VV-U3G
H05VV-U5G
Size
Wiring size must comply with
the applicable local and national code
Wire type of wiring
between the units
H05VV-U4G2.5
RZQSG
100V1
125V1
140V1
100Y1
125Y1
140Y1
Minimum circuit
amps (MCA)
(a)
(a) Stated values are maximum values (see electrical data of combination with
indoor units for exact values).
32.0
33.5
17.7
19.2
22.5
Recommended
field fuse (A)
40
20
25
Wire type
(b)
(b) Only in protected pipes, use H07RN-F when protected pipes are not used.
H05VV-U3G
H05VV-U5G
Size
Wiring size must comply with
the applicable local and national code
Wire type of wiring
between the units
H05VV-U4G2.5
CAUTION
Select all cables and wire sizes in accordance with
applicable legislation.
After finishing the electrical work, confirm that each
electric part and terminal inside the electric part box is
connected securely.
The earth leakage breaker must be a high-speed type
breaker of 30 mA (<0.1 s).
(1)
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.
