Daikin VRV IV+ RYYQ12U7Y1B Series Installer And User Manual page 59

DS1 , DS2 DIP switch
(A1P)
E1HC Crankcase heater
E3H Drain pan heater (option)
F1U, F2U Fuse (T 31.5 A / 250 V)
(A1P)
F3U Field fuse
F101U Fuse
(A4P, A7P)
F401U, Fuse
F403U
(A2P, A5P)
F601U, Fuse
(A3P, A6P)
HAP (A*P) Pilot lamp (service monitor is green)
K3R (A3P, Magnetic relay
A6P)
K3R (A1P) Magnetic relay (Y4S)
K4R (A1P) Magnetic relay (Y1S)
K5R (A1P) Magnetic relay (Y2S)
K6R (A1P) Magnetic relay (E3H)
K7R (A1P) Magnetic relay (E1HC)
K8R (A1P) Magnetic relay (E2HC)
K9R (A1P) Magnetic relay (Y3S)
K11R (A1P) Magnetic relay (Y5S)
L1R, L2R Reactor
M1C, M2C Motor (compressor)
M1F, M2F Motor (fan)
PS (A1P, Switching power supply
A3P, A6P)
Q1DI Earth leakage circuit breaker (field supply)
Q1LD (A1P) Earth current detector (field supply)
R24 (A4P, Resistor (current sensor)
A7P)
R300 (A3P, Resistor (current sensor)
A6P)
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, R9T Thermistor (M1C, M2C body)
R21T, R22T Thermistor (M1C, M2C discharge)
S1NPH Pressure sensor (high)
S1NPL Pressure sensor (low)
S1PH, Pressure switch (discharge)
S2PH
SEG1~SEG 7-segment display
3 (A1P)
T1A Current sensor
V1D (A3P) Diode
V1R (A3P, Power module
A4P, A6P,
A7P)
X*A Connector
X1M (A1P) Terminal block (control)
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1 – 2018.09
X1M (A8P) Terminal block (power supply)(option)
Y1E Electronic expansion valve (main)
Y2E Electronic expansion valve (injection)
Y3E Electronic expansion valve (liquid cooling)
Y4E Electronic expansion valve (storage vessel)
Y1S Solenoid valve (main)
Y2S Solenoid valve (accumulator oil return)
Y3S Solenoid valve (oil 1)
Y4S Solenoid valve (oil 2)
Y5S Solenoid valve (subcool)
Z*C Noise filter (ferrite core)
Z*F (A2P) Noise filter (with surge absorber)
Connectors for optional accessories:
X10A Connector (drainpan heater)
X37A Connector (power adapter)
X66A Connector (remote switching COOL/HEAT selector)
12 Technical data
Installer and user reference guide
59