Installation manual
15
EKHBRD011~Y1
Indoor unit for air to water heat pump system
4PW54465-1C
Connection of the indoor unit power supply and
communication cable(s)
Cable requirements
Procedure
1
Using the appropriate cable, connect the power supply and
communication cable(s) to the appropriate terminals as shown
on the wiring diagram and according to
2
Fix the cable with cable ties to the cable tie mountings to ensure
strain relief and to make sure that it does not come in contact
with the piping and sharp edges. Never squeeze bundled
cables.
Note: only relevant field wiring is shown in
Installation of the remote controller
The unit is equipped with a remote controller offering user-friendly
way to set up, use and maintain the unit. Before operating the remote
controller, follow this installation procedure.
1
Remove the front part of the remote controller.
Insert a slotted screwdriver into the slots (1)
in the rear part of the remote controller, and
remove the front part of the remote
controller.
2
Fasten the remote controller on a flat
surface.
3
Wire the unit.
Item
Cable
bundle Description
Required number
of conductors
Maximum
running
current
In case of normal kWh rate power supply
installation
1~
3~
1
PS
Normal kWh rate power
supply
2+GND
4+GND
(b)
(b) Refer to the nameplate on the indoor unit.
In case of benefit kWh rate power supply
installation
1~
3~
1
PS
Normal kWh rate power
supply
2+GND
2+GND
1.25
2
PS
Benefit kWh rate power
supply
2+GND
4+GND
3
LV
Outdoor unit communication
(F1/F2)
2
2
(c)
(c) Minimum cable section 0.75 mm
2
.
4
LV
Standard remote controller
(P1/P2)
2
2
5
LV
Secondary remote controller
(P1/P2)
(a)
(a) Optional
2
2
6
LV
Domestic hot water tank
thermistor (R2T)
2
2
(d)
(d) This device and connection cable is delivered with the domestic hot water tank.
7
LV
External room thermostat
signal ON/OFF
2
2
100 mA
8
LV
Benefit kWh rate power
supply switch (S1S)
2
2
100 mA
9
LV
Multiple set point signal 1
2
2
100 mA
10
LV
Multiple set point signal 2
2
2
100 mA
11
LV
Refer to the installation manual
of the heater kit
12
HV
Bottom plate heater (E7H)
2
2
0.5 A
13
HV
3-way valve (K1S)
3
3
14
HV
External room thermostat
power supply
2
2
100 mA
15
HV
Heater kit control
Refer to the installation manual
of the heater kit
PS = Power supply (see
LV = Low voltage (see
HV = High voltage (see
NOTE
Select all cables and wire sizes in accordance with
relevant local and national regulations.
After finishing the electric work, confirm that each electric
part and terminal inside the electric parts box is connected
securely.
■
To avoid receiving electric noise, be sure that the
cables are put in the correct bundle and routed in
the correct bundle tray as shown in
.
■
When wiring, route the cable bundles away from
each other by at least 25 mm in order to avoid
receiving electric noise (external noise).
NOTE
The wiring for connection is not included.
■
The remote controller, delivered in a kit, has to be
mounted indoors.
■
When the remote controller thermostat function is
used, select the installation location considering it
should be a place:
-
where the average temperature in the room can be
detected,
-
that is not exposed to direct sunlight,
-
that is not near a heat source,
-
that is not affected by outside air or air draught due
to e.g. door opening/closing,
-
where the display is kept clean,
-
where the temperature is between 0°C and 50°C,
-
where the relative humidity is maximum 80%.
NOTE
Be careful not to distort the shape of the lower
part of the remote controller by over tightening the
mounting screws.
NOTE
If next to the standard remote controller the
optional remote controller is installed as well:
■
Connect the electrical wires of both remote
controllers in the same way like described
below.
■
Select a master and a slave remote controller
by switching the SS1 selector switch.
■
Only the remote controller set as master can
work as room thermostat.
1
S
S
M
PCB
SS1
S
Slave
M
Master
Содержание EKHBRD-AY1
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