Daikin VRV IV+ Series Installation And Operation Manual page 39

Symbols:
Field wiring
Terminal block
Connector
Terminal
Protective earth
Noiseless earth
Earth wiring
Field supply
PCB
Switch box
Option
Colours:
BLK Black
RED Red
BLU Blue
WHT White
GRN Green
Legend for wiring diagram 8~12 HP:
A1P Printed circuit board (main)
A2P Printed circuit board (noise filter)
A3P Printed circuit board (inverter)
A4P Printed circuit board (fan)
A5P Printed circuit board (ABC I/P) (option)
BS1~BS3 Push button switch (MODE, SET, RETURN)
(A1P)
C* (A3P) Capacitor
DS1, DS2 DIP switch
(A1P)
E1HC Crankcase heater
E3H Drain pan heater (option)
F1U, F2U Fuse (T 3.15 A / 250 V)
(A1P)
F3U Field fuse
F101U Fuse
(A4P)
F401U, Fuse
F403U
(A2P)
F601U, Fuse
(A3P)
HAP (A*P) Pilot lamp (service monitor is green)
K3R (A3P) Magnetic relay
K4R (A1P) Magnetic relay (Y1S)
K5R (A1P) Magnetic relay (Y2S)
K6R (A1P) Magnetic relay (E3H)
K7R (A1P) Magnetic relay (E1HC)
K9R (A1P) Magnetic relay (Y3S)
L1R Reactor
M1C Motor (compressor)
M1F Motor (fan)
PS (A1P, Switching power supply
A3P)
Q1DI Earth leakage circuit breaker (field supply)
RXYTQ8~16U7YF
VRV IV+ heat pump for high ambient temperatures
4P546223-1B – 2020.10
Q1LD (A1P) Earth current detector (field supply)
R24 (A4P) Resistor (current sensor)
R300 (A3P) Resistor (current sensor)
R1T Thermistor (air)
R3T Thermistor (accumulator)
R4T Thermistor (heat exchanger, liquid pipe)
R5T Thermistor (subcool liquid pipe)
R6T Thermistor (heat exchanger, gas pipe)
R7T Thermistor (heat exchanger, de-icer)
R8T Thermistor (M1C body)
R21T Thermistor (M1C discharge)
S1NPH Pressure sensor (high)
S1NPL Pressure sensor (low)
S1PH Pressure switch (discharge)
SEG1~SEG 7-segment display
3 (A1P)
T1A Current sensor
V1D (A3P) Diode
V1R (A3P, Power module
A4P)
X*A Connector
X1M (A1P) Terminal block (control)
X1M (A5P) Terminal block (power supply)(option)
Y1E Electronic expansion valve (main)
Y2E Electronic expansion valve (sub‑cool)
Y3E Electronic expansion valve (liquid cooling)
Y1S Solenoid valve (main)
Y2S Solenoid valve (accumulator oil return)
Y3S Solenoid valve (oil 1)
Z*C Noise filter (ferrite core)
Z*F (A2P, Noise filter (with surge absorber)
A5P)
Connectors for optional accessories:
X10A Connector (drainpan heater)
X37A Connector (power adapter)
X66A Connector (remote switching COOL/HEAT selector)
Legend for wiring diagram 14~20 HP:
A1P Printed circuit board (main)
A2P, A5P Printed circuit board (noise filter)
A3P, A6P Printed circuit board (inverter)
A4P, A7P Printed circuit board (fan)
A8P Printed circuit board (ABC I/P) (option)
BS1~BS3 Push button switch (MODE, SET, RETURN)
(A1P)
C* (A3P, Capacitor
A6P)
DS1 , DS2 DIP switch
(A1P)
E1HC Crankcase heater
E3H Drain pan heater (option)
F1U, F2U Fuse (T 3.15 A / 250 V)
(A1P)
F3U Field fuse
F101U Fuse
(A4P, A7P)
20 Technical data
Installation and operation manual
39