Installation manual
22
0 EKCBX/H008BAV3
Unit for air to water heat pump system
4PW64602-1A – 09.2010
12.2. Outdoor unit – Internal wiring – Parts table
Refer to the wiring diagram sticker on the top plate of the outdoor
unit. The abbreviations used are listed below:
A3P,A4P ................... Printed circuit board
E1,E2 ....................... Connector
E1H .......................... Expansion vessel heater
E2H .......................... Bottom plate heater (option)
FU1 .......................... Fuse (30 A, 250 V)
FU2,FU3................... Fuse (F, 3.15 A, 250 V)
FU4,FU5................... Fuse (F, 1.0 A, 250 V)
HR1,HR2.................. Connector
L1R........................... Reactor
LED A....................... Pilot lamp
M1C.......................... Motor (compressor)
M1P.......................... Pump
M2F .......................... Motor (fan)
MRC/W..................... Magnetic relay
MRM10,MRM20 ....... Magnetic relay
PM1.......................... Power module
Q1L .......................... Overload protector
R1T~R3T.................. Thermistor
R11T ........................ Outlet water heat exchanger thermistor
R13T ........................ Refrigerant liquid side thermistor
R14T ........................ Inlet water heat exchanger thermistor
S1L........................... Flowswitch
S1T........................... Thermostat expansion vessel heater
S2~S102 .................. Connector
SA2 .......................... Surge arrester
SW1 ......................... Forced operation ON/OFF SW (SW1)
SW4 ......................... Local setting SW (SW4)
U............................... Connector
V............................... Connector
V2,V3,V5,V9,V100 ... Varistor
W.............................. Connector
X1M~X4M ................ Terminal strip
X1Y~X4Y.................. Connector
X11A,X12A............... Connector
X13Y ........................ Connector (indoor unit)
X14M........................ Terminal strip (indoor unit)
Y1E .......................... Electronic expansion valve coil
Y1R .......................... Reversing solenoid valve coil
Z1C~Z7C.................. Ferrite core
Z1F........................... Noise filter (with surge absorber)
L ............................... Live
N............................... Neutral
SHEET METAL......... Terminal strip fixed plate
................. Field wiring
.................... Terminal strip
.................... Connector
........................... Terminal
............................ Protective earth
BLK .......................... Black
BLU .......................... Blue
BRN.......................... Brown
GRN ......................... Green
GRY.......................... Grey
ORG ......................... Orange
PNK.......................... Pink
RED.......................... Red
VIO ........................... Violet
WHT ......................... White
YLW.......................... Yellow
NOTES
OUTDOOR UNIT...................Outdoor unit
INDOOR UNIT.......................Indoor unit
HYDRO MODULE .................Hydro module
COMPRESSOR MODULE ....Compressor module
OPTION.................................Option
FIELD WIRING ......................Field wiring
PCB .......................................PCB
WIRE COLOUR.....................Wire colour
FIELD SUPPLY......................Field supply
POWER SUPPLY ..................Power supply
(OUTDOOR)..........................(Outdoor)
(DISCHARGE).......................(Discharge)
(CONDENSOR).....................(Condensor)
ONLY FOR *** OPTION.........Only for *** option
12.3. Overview of field wiring
Field wiring consists out of power supply (always including earth) and
indoor-outdoor communication (=transmission) wiring.
12.4. Requirements
The power supply must be protected with the required safety devices,
i.e. a main switch or other means for disconnections, a slow blow
fuse on each phase and an earth leakage protector.
Selection and sizing of the wiring should be done in accordance with
relevant local and national regulations based on the information
mentioned in the table below:
Table: Selection and sizing of wiring
Table: Power cable selection
(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.
1
THIS WIRING DIAGRAM ONLY APPLIES TO THE OUTDOOR UNIT
4
DO NOT OPERATE THE UNIT BY SHORT-CIRCUITING ANY
PROTECTION DEVICE
NOTICE
The wiring diagram on the outdoor unit is only for the
outdoor unit.
For the indoor unit or optional electrical components, refer
to the wiring diagram of the indoor unit.
Item
Cable
bundle
(a)
(a) PS = Power supply
HV = High voltage
LV = Low voltage
Description
Required
number of
conductors
Maximum running
current
1
PS
Power supply
2 + GND
18 A
2
HV
Indoor unit control signals
3 + GND
Minimum cable
section 2.5 mm
2
3
HV
Indoor unit pump and
heater control signals
4
Minimum cable
section 0.75 mm
2
4
LV
Thermistor interconnection
cable (supplied with the
outdoor unit)
8
Supplied with the
outdoor unit
Model
Nominal volatage
Maximum running
current
Z
max
EBHQ+EKCB
(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
.
1x 203 V
18 A
0.42
Ω
4PW64602-1A.book Page 22 Thursday, September 23, 2010 10:40 AM
