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K1R........................ Magnetic relay (K2M, Y4S)
K2,K4..................... Magnetic contactor (M1C)
K2R........................ Magnetic relay (Y5S)
K3R........................ Magnetic relay (Y1S)
K4R........................ Magnetic relay (Y8S)
K5R........................ Magnetic relay (Y2S)
K5R........................ Magnetic relay (for option)
K6R........................ Magnetic relay (Y7S)
K7R,K8R................ Magnetic relay (E1HC, E2HC)
K11R...................... Magnetic relay (Y3S)
L1R,L2R ................ Reactor
M1C,M2C .............. Motor (compressor)
M1F,M2F................ Motor (fan)
PS.......................... Switching power supply
Q1DI ...................... Earth leakage protector (field supply)
Q1RP..................... Phase reversal detection circuit
R1T........................ Thermistor (air, fin)
R2T~R15T ............. Thermistor (H/E gas 1, H/E de-icer 1, sub cool H/
E gas 1, sub cool H/E liquid, H/E liquid 1,
suction 1, liquid 1, suction 2, H/E gas 2, H/E de-
icer 2, sub cool H/E gas 2, liquid 2, H/E liquid 2)
R10 ........................ Resistor (current sensor)
R31T,R32T ............ Thermistor (discharge) (M1C,M2C)
R50,R59 ................ Resistor
R90 ........................ Resistor (current sensor)
R95 ........................ Resistor (current limiting)
S1NPH................... Pressure sensor (high)
S1NPL ................... Pressure sensor (low)
S1PH,S2PH........... Pressure switch (high)
SD1........................ Safety devices input
T1A ........................ Current sensor
V1R........................ Diode bridge
V1R,V2R................ Power module
X1A~X9A ............... Connector
X1M ....................... Terminal strip (power supply)
X1M ....................... Terminal strip (control)
X2M ....................... Terminal strip (relay)
Y1E~Y5E ............... Electronic expansion valve (main 1, sub cool 1,
main 2, charge, sub cool 2)
Y1S~Y10S............. Solenoid valve (RMTG, 4 way valve–H/E gas 1,
RMTL, hot gas, EV bypass 1, RMTT, RMTO, 4
way valve–H/E gas 2, EV bypass 2)
Z1C~Z12C ............. Noise filter (ferrite core)
Z1F ........................ Noise filter (with surge absorber)
L1,L2,L3................. Live
N ............................ Neutral
............... Field wiring
................. Terminal strip
......................... Connector
......................... Terminal
.......................... Protective earth (screw)
BLK........................ Black
BLU........................ Blue
BRN ....................... Brown
GRN....................... Green
EMRQ8~16ABY1
Daikin Altherma outdoor unit
4P501819-1 – 2017.08
GRY ....................... Grey
ORG....................... Orange
PNK ....................... Pink
RED ....................... Red
WHT....................... White
YLW ....................... Yellow
The wiring diagram on the outdoor unit is only for the
NOTE
outdoor unit.
For the indoor unit or optional electrical components,
refer to the wiring diagram of the indoor unit.
12.3. System 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, a slow blow fuse on each phase and an earth
leakage protector in accordance with the 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:
Phase and
frequency
Voltage
EMRQ8
3N~ 50 Hz
380~415 V
EMRQ10
3N~ 50 Hz
380~415 V
EMRQ12
3N~ 50 Hz
380~415 V
EMRQ14
3N~ 50 Hz
380~415 V
EMRQ16
3N~ 50 Hz
380~415 V
Transmission wiring should have a line section of 0.75~1.25 mm
For the transmission wiring, the maximum wiring length is 1000 m.
If the total transmission wiring exceeds these limits, it may result in
communication error.
12.5. Routing
It is important to keep the power supply and the transmission wiring
separated from each other. In order to avoid any electrical
interference the distance between both wiring should always be at
least 25 mm.
Transmission wiring routing
The transmission wiring should be wrapped and routed together with
the field piping as follows:
3
6
2
4
6
1
5
6
Field piping can be routed from left, right or front. Refer to
"10.2. Connecting the refrigerant piping" on page
Maximum
Recommended
current
fuses
17.1 A
20 A
22.1 A
25 A
22.3 A
25 A
32.8 A
40 A
33.0 A
40 A
1
Liquid pipe
2
Discharge gas pipe
3
Finishing tape
4
Suction gas pipe
5
Transmission wiring
6
Insulation material
13.
Installation manual
2
.
20
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