System Overview Of Field Wiring; Requirements; Routing - Daikin KHRQ23M29H Installationsanleitung

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
GRY ....................... Grey
REYAQ10~16P7Y1B
VRVIII system outdoor unit
4PW62582-1A – 08.2011
ORG....................... Orange
PNK........................ Pink
RED ....................... Red
WHT....................... White
YLW ....................... Yellow
INFORMATION
The wiring diagram on the outdoor unit is only for the
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
REYAQ10 3N~ 50 Hz 380~415 V
REYAQ12 3N~ 50 Hz 380~415 V
REYAQ14 3N~ 50 Hz 380~415 V
REYAQ16 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
6 5
Field piping can be routed from left, right or front. Refer to
"10.2. Connecting the refrigerant piping" on page 14.
Maximum Recommended
current fuses
22.1 A 25 A
22.3 A 25 A
32.8 A 40 A
33.0 A 40 A
2
.
1 Liquid pipe
2 HP/LP gas pipe
3 Finishing tape
4 Suction gas pipe
5 Transmission wiring
6 Insulation material
Installation manual
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