System Overview Of Field Wiring; Connection Of The Indoor Unit Power Supply And Communication Cable(S) - Daikin Altherma EKHBRD014ADV17 Installation Manual

R4T............................ Returning water thermistor
R5T............................ Leaving water thermistor
R6T............................ Discharge thermistor
R7T............................ Liquid thermistor R134a
R8T............................ Fin thermistor
RC (A*P).................... Receiver circuit
S1PH ......................... High pressure switch
S1S............................ Benefit kWh rate power supply contact (field
supply)
S3S............................ Mixing station input 1 (field supply)
S4S............................ Mixing station input 2 (field supply)
SS1 (A1P).................. Selector switch (emergency)
SS1 (A2P).................. Selector switch (master/slave)
SS1 (A7P).................. Selector switch (optional)
TC (A*P) .................... Transmitter circuit
T1R,T2R (A*P) .......... Diode bridge
T3R......................* .... Power module
V1C~V8C ............* .... Ferrite core noise filter
V1C~V12C ......... # .... Ferrite core noise filter
X1M~X3M.................. Terminal block
X1Y~X4Y ................... Connector
X*M (A*P) .................. Terminal block on PCB (optional)
Y17R.......................... 4-way valve
Z1F~Z5F (A*P) .......... Noise filter
* V17 models only
# Y17 models only
System overview of field wiring
I
Most field wiring on the indoor unit side is to be made on the
terminal block inside the switch box. To gain access to the
terminal blocks, remove switch box service panel. Refer to the
unit switch box cover for instructions how to remove this panel
and gain access to the inside of the switch box.
I
Cable tie mountings are provided at the wiring entries of the
switch box. See "Switch box main components" on page
I
NOTE The electrical connection diagram can be found
on the inside of the switch box cover.
I
Install the indoor and outdoor unit, power supply
cable and communication cable(s) at least 1
meter away from televisions or radios to prevent
image interference or noise.
(Depending on the radio waves, a distance of 1
meter may not be sufficient to eliminate the
noise.)
EKHBRD011~016ADV17+Y17
Indoor unit for air to water heat pump system
4P402191-1B – 2017.09
Connection of the indoor unit power supply and
communication cable(s)
Cable requirements
Cable
Item bundle Description
In case of normal kWh rate power supply
installation
1 PS Normal kWh rate power
supply
In case of benefit kWh rate power supply
installation
1 PS Normal kWh rate power
supply
2 PS Benefit kWh rate power
supply
3 LV Outdoor unit communication
(F1/F2)
4 LV Standard remote controller
(P1/P2)
5 LV Secondary remote controller
(P1/P2)
6 LV Domestic hot water tank
thermistor (R2T)
7 LV External room thermostat
signal ON/OFF
8 LV Benefit kWh rate power
supply switch (S1S)
9 LV Multiple set point signal 1
10 LV Multiple set point signal 2
11 LV Heater kit signal
12 HV Bottom plate heater (E7H)
13 HV 3-way valve (K1S)
14 HV External room thermostat
power supply
15 HV Heater kit control
16 HV Solar pump station relay
PS = Power supply (see
8.
LV = Low voltage (see
HV = High voltage (see
(a) Optional
(b) Refer to the nameplate on the indoor unit.
(c) Minimum cable section 0.75 mm
(d) This device and connection cable is delivered with the domestic hot water tank.
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.
Procedure
1 Open the unit and put the switch box in front of the unit as
described in
2 Open the switch box cover.
3 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
I
I
I
Required number
of conductors
1~
2+GND
1~
2+GND
2+GND
2
2
2
(a)
2
(a)
2
(a)
2
(a)
(a)
2
(a)
2
(a)
Refer to the installation manual
of the heater kit
(a)
2
(a)
3
2
(a)
(a)
Refer to the installation manual
of the heater kit
(a)
2
figure 3)
figure 3)
figure 3)
2
.
"Opening the unit" on page 36.
figure
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 that are
outside the unit away from each other by at least
25 mm in order to avoid receiving electric noise
(external noise).
Be sure to route all cables between the unit side
plate and the wiring retention bar as shown in
figure 3.
Maximum
running
current
3~
4+GND (b)
3~
2+GND 1.25
(b)
4+GND –1.25
(c)
2
(c)
2
(c)
2
(d)
2
(c)
2 100 mA
(c)
2 100 mA
(c)
2 100 mA
(c)
2 100 mA
(c)
2 0.5 A
(d)
3
(c)
2 100 mA
(c)
2 100 mA
3.
figure 3.
Installation manual
16