Daikin EKHVMYD50ABV1 [31/64] System overview of field wiring

Daikin EKHVMYD50ABV1 [31/64] System overview of field wiring
EKHVMRD50+80ABV1 + EKHVMYD50+80ABV1
Daikin Altherma indoor unit
4P404420-1 2015.04
Installation manual
29
R10T.......................... Liquid thermistor (cooling)
R11T.......................... Suction thermistor (cooling)
RC (A*P).................... Receiver circuit
S1PH ......................... High pressure switch
S1S.....................#.... Benet kWh rate power supply contact
S3S.....................#.... Input multiple setpoint 1
S4S.....................#.... Input multiple setpoint 2
SS1 (A1P).................. Selector switch (emergency)
SS1 (A2P).................. Selector switch (master/slave)
SS1 (A7P)............*.... Selector switch
TC (A*P) .................... Transmitter circuit
T1R,T2R (A*P) .......... Diode bridge
T3R............................ Power module
V1C~V8C .................. Ferrite core noise lter
X1M~X3M..................Terminal strip
X1Y~X4Y................... Connector
X*M (A*P) ............*....PCB terminal strip
Z1F~Z5F (A*P) .......... Noise lter
*.... Included in option kit
#.... eld supplied
8.3. System overview of field wiring
Field wiring consists out of power supply, multi tenant power supply,
indoor-outdoor communication (=transmission) wiring, wiring of the
user interface, wiring for connection of options and eld supply
accessories.
8.4. Requirements
A power supply (see table below) must be provided for connection of
the unit. The power supply must be protected with the required safety
devices, i.e. a main switch, a slow blow fuse on each phase and an
earth leakage protector in accordance with applicable legislation.
Selection and sizing of the wiring should be done in accordance with
the applicable legislation based on the information mentioned in the
table below:
NOTE
The wiring diagram on the indoor unit is only for the
indoor unit.
For the outdoor unit refer to the wiring diagram of the
outdoor unit.
NOTE
Carefully install multi tenant power supply.
This power supply will guarantee correct outdoor
unit operation if one tenant shuts of power supply.
If the multi tenant power supply is not installed, the
outdoor unit will stop operating if one tenant shuts
off the main power supply.
If during service the main power supply is cut off
for safety of electric shock, make sure that also
the multi tenant power supply is cut off.
Item
Cable
bundle
Description
Required
number of
conductors
Maximum
running
current
In case of normal kWh rate power supply installation
1 HV Multi tenant power supply 2 1
2 PS Normal kWh rate power supply 2+GND
(b)
(b) Refer to the nameplate on the indoor unit.
In case of benet kWh rate power supply installation
1 HV Multi tenant power supply 2 1
2 PS Normal kWh rate power supply 2+GND 1.25
3 PS Benet kWh rate power supply 2+GND
(b)
1.25
4 LV Transmission wiring (F1/F2) 2
(c)
(c) Minimum cable section 0.75 mm
2
.
5 LV Standard remote controller (P1/
P2)
2
(c)
6 LV Secondary remote controller
(P1/P2)
(a)
(a) Optional
2
(c)
7 LV Domestic hot water tank
thermistor (R2T)
(a)
2
(d)
(d) This device and connection cable is delivered with the domestic hot water tank.
8 LV External room thermostat
signal ON/OFF
(a)
2
100 mA
(c)
9 LV Benet kWh rate power supply
switch (S1S)
(a)
2
100 mA
(c)
10 LV
Multiple set point signal 1
(a)
2
100 mA
(c)
11 LV
Multiple set point signal 2
(a)
2
100 mA
(c)
12 LV Heater kit signal
(a)
Refer to the installation
manual of the heater kit
13 HV
3-way valve (K1S)
(a)
3
(d)
14 HV
Digital I/O PCB outputs
(a)
2
300 mA
(c)
15 HV Cooling on/off output 2
300 mA
(c)
(e)
(e) Only for EKHVMYD models.
16 HV Heater kit control
(a)
Refer to the installation
manual of the heater kit
17 HV
Solar pump station relay
(a)
2
100 mA
(c)
PS = Power supply
LV = Low voltage
HV = High voltage

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