System Overview Of Field Wiring; Connection Of The Indoor Unit Power Supply And Communication Cable(S) - Rotex RKHBRD011AAV1 Guia De Instalacion

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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)
Y1R ........................... 4-way valve
Z1F~Z5F (A*P).......... Noise filter
*
V1 models only
#
Y1 models only
System overview of field wiring
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.
Cable tie mountings are provided at the wiring entries of the
switch box. See "Switch box main components" on page 7.
NOTE
The electrical connection diagram can be found
on the inside of the switch box cover.
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.)
Installation manual
14
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
(a)
(P1/P2)
6
LV
Domestic hot water tank
(a)
thermistor (R2T)
7
LV
External room thermostat
(a)
signal ON/OFF
8
LV
Benefit kWh rate power
(a)
supply switch (S1S)
9
LV
Multiple set point signal 1
10
LV
Multiple set point signal 1
11
HV
Bottom plate heater (E7H)
(a)
12
HV
3-way valve (K1S)
13
HV
Digital I/O PCB outputs
14
HV
External room thermostat
(a)
power supply
PS = Power supply (see figure 3)
LV = Low voltage (see figure 3)
HV = High voltage (see figure 3)
(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
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 figure 3.
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 figure 3.
When wiring, route the cable bundles away from
each other by at least 25 mm in order to avoid
receiving electric noise (external noise).
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 figure 3.
Indoor unit for air to water heat pump system
Maximum
Required number
running
of conductors
current
1~
3~
2+GND
4+GND
(b)
1~
3~
2+GND
2+GND
1.25
(b)
2+GND
4+GND
–1.25
(c)
2
2
(c)
2
2
(c)
2
2
(d)
2
2
2
2
100 mA
2
2
100 mA
(a)
2
2
100 mA
(a)
2
2
100 mA
(a)
(c)
2
2
0.5 A
(d)
3
3
(a)
2
2
300 mA
2
2
100 mA
2
.
RKHBRD011~016AAV1+Y1
4PW55786-1
(c)
(c)
(c)
(c)
(c)
(c)

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