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9.
E
LECTRICAL WIRING WORK
9.1. Precautions on electrical wiring work
WARNING
■
A main switch or other means for disconnection,
having a contact separation in all poles, must be
incorporated in the fixed wiring in accordance with
relevant local and national regulations.
■
Switch off the power supply before making any
connections.
■
Use only copper wires.
■
All field wiring and components must be installed by a
licensed electrician and must comply with relevant
European and national regulations.
■
Be sure to install the required fuses as mentioned on
the electrical wiring diagram.
■
The field wiring must be carried out in accordance
with the wiring diagram supplied with the unit and the
instructions given below.
■
Never squeeze bundled cables and make sure that it
does not come in contact with the piping and sharp
edges.
Make sure no external pressure is applied to the
terminal connections.
■
Be sure to use a dedicated power supply. Never use a
power supply shared by another appliance.
■
Be sure to establish an earth. Do not earth the unit to
a utility pipe, surge absorber, or telephone earth.
Incomplete earth may cause electrical shock.
■
Be sure to install an earth leakage protector in
accordance
with
regulations. Failure to do so may cause electrical
shock.
When installing the earth leakage protector make sure
that it is compatible with the inverter (resistant to high
frequency electrical noise) to avoid unnecessary
opening of the earth leakage protector.
■
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.
■
Be sure that after installation work all the rubber
bushings are put back in place to protect the wires
from touching sharp edges.
CAUTION: For V3 models only
■
Equipment complying with EN/IEC 61000-3-12
■
This equipment complies with EN/IEC 61000-3-11
provided that the system impedance Z
or equal to Z
max
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
than or equal to Z
(a) 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.
(b) 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.
Installation manual
12
relevant
local
and
national
(a)
is less than
sys
at the interface point between the
sys
=0.43 Ω.
. Z
max
max
9.2. Internal wiring - Parts table
Refer to the internal wiring diagram supplied with the unit. The
abbreviations used are listed below.
Switch box components list
A1P.................. Main PCB
A2P.................. User interface PCB
A3P.................. Filter PCB
A4P.................. Inverter PCB
C6~C119 ......... Capacitor (A4P)
DS2,DS3 ......... DIP switch (A1P)
E1H ................. Electric heater element
F1B.................. Fuse
F1T .................. Thermal fuse
F1U,F2U .......... Fuse (T, 3.15 A, 250 V) (A*P)
F3U.................. Fuse (20 A, 250 V) (A3P)
HAP ................. PCB LED (A1P)
K1 .................... Changeover contact (A3P)
K1E.................. Electronic expansion valve
K1M ................. Contactor backup heater
K*R .................. PCB relay (A1P)
M1C................. Compressor
M1F ................. Fan motor
M1P ................. Pump
Q1DI ................ Earth leakage protector (field supply)
Q1L.................. Compressor overheat protector
Q2L.................. Thermal protector
R1L.................. Reactor
R1T.................. Ambient temperature sensor
R2T.................. Evaporator temperature sensor
R3T.................. Discharge temperature sensor
R4T.................. Condensing temperature sensor
R5T.................. Leaving water temperature sensor
R6T.................. Entering water temperature sensor
R7T.................. Domestic hot water tank temperature sensor
S1L .................. Flow sensor
S1S.................. Benefit kWh power rate signal (field supply)
T1R.................. Diode bridge (A4P)
T2R,T3R.......... Power module (A4P)
V1C~V7C ........ Ferrite core
X1M~X3M ....... Terminal strp
X1Y~X7Y......... Connector
Z1F .................. Noise filter
(b)
less
EKHVWQ002AAV3 + EKHHS200+260AA1V3
Domestic hot water heat pump
4PW65342-1A – 10.2010
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