Installation manual
Installation manual
15
E(D/B)(H/L)Q011~016AA6V3+W1
Unit for air to water heat pump system
4PW51121-1A
Precautions on wiring of power supply
■ 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.
■ Attach an earth leakage circuit breaker and fuse to the power
supply line.
■ 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.
Specifications of standard wiring components
Door 1: compressor compartment and electrical parts: X1M
For V3 model: Equipment complying with EN/IEC 61000-3-12
(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.)
The wiring diagram can be found on the inside of the front plate of the
unit.
Connection of the backup heater power supply
Power circuit and cable requirements
This power circuit must be protected with the required safety devices
according to local and national regulations.
Select the power cable in accordance with relevant local and national
regulations. For the maximum running current of the backup heater,
refer to the table below.
Door 2: electrical parts of the hydraulic compartment: X10M
(1)(2)
Tightening torque (N•m)
M4 (X1M) 1.2~1.8
M5 (X1M) 2.0~3.0
M5 (EARTH) 3.0~4.0
V3 W1
Minimum circuit amps (MCA)
(a)
(a) Stated values are maximum values (see electrical data of combination with
indoor unit for exact values).
28.2 13.5
Recommended field fuse 32 A 20 A
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
NOTE
The earth leakage circuit breaker must be a
high-speed type breaker of 30 mA (<0.1 s).
123
1 Round pressure terminal
2 Cut out section
3 Cup washer
V3
1~ 50 Hz
230 V
W1
3N~ 50 Hz
400 V
L1 L3L2
L1 L3
L2
1
2
X1MX1M
1 Earth leakage circuit
breaker
2 Fuse
■ Be sure to use a dedicated power circuit for the
backup heater. Never use a power circuit shared by
another appliance.
■ Use one and same dedicated power supply for the
unit, backup heater and booster heater (domestic hot
water tank).
Model
Backup heater
capacity
Backup heater
nominal voltage
Maximum
running current
Z
max
(Ω)
V3
(a) (b)
(a) Equipment complying with EN/IEC 61000-3-12
(1)
(b) This equipment complies with EN/IEC 61000-3-11
(2)
provided that the system
impedance Z
sys
is less than or equal to Z
max
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 system
impedance Z
sys
less than or equal to Z
max
.
6 kW 1x 230 V 26 A 0.29
W1 6 kW 3x 400 V 8.6 A —
V3
(c)
(c) Refer to procedure how to set the backup heater to lower capacity.
3 kW 1x 230 V 13 A —
W1 2 kW 3x 400 V 5.0 A —
(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.
(2) 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.
NOTE
The earth leakage circuit breaker must be a
high-speed type breaker of 30 mA (<0.1 s).
L1 L3L2
L1 L3
L2
1
2
X10MX10M
V3
1~ 50 Hz
230 V
W1
3N~ 50 Hz
400 V
1 Earth leakage circuit
breaker
2 Fuse
1D_IM_4PW51121-1A.book Page 15 Tuesday, January 27, 2009 7:46 AM










