Daikin Altherma 3 H HT EPRA18DAV3 Manuel D'installation page 18

8 Technical data
Y2S Solenoid valve (low pressure bypass)
Y3S Solenoid valve (hot gas bypass)
Y4S Solenoid valve (liquid injection)
Z1C~Z11C Noise filter (ferrite core)
Z1F~Z6F (A1P, A2P) Noise filter
Legend in case of W1 models:
A1P Printed circuit board (main)
A2P Printed circuit board (noise filter)
A3P Printed circuit board (leakage current)
A4P Printed circuit board (ACS)
A5P Printed circuit board (inverter)
BS1~BS4 (A1P) Push button switch
C1~C3 (A2P) Capacitor
DS1 (A1P) DIP switch
E1H Drain tube heater (field supply)
E1HHEX Plate heat exchanger heater
F1U Field fuse (field supply)
F1U~F7U (A1P, A2P) Fuse
H1P~H7P (A1P) Light-emitting diode (service monitor is
orange)
HAP (A1P, A2P) Light-emitting diode (service monitor is
green)
K1R (A1P) Magnetic relay (Y1S)
K1R (A2P) Magnetic relay
K1R (A4P) Magnetic relay (E1HHEX)
K2R (A1P) Magnetic relay (Y2S)
K2R (A4P) Magnetic relay (E1H)
K3R (A1P) Magnetic relay (Y3S)
K4R (A1P) Magnetic relay (E1HC)
K2M, K11M (A2P) Magnetic contactor
L1R~L4R Reactor
M1C Compressor motor
M1F Fan motor
PS (A2P) Switching power supply
Q1DI Earth leakage circuit breaker (30 mA) (field
supply)
R1, R2 (A2P) Resistor
R1T Thermistor (outdoor air)
R2T Thermistor (compressor discharge)
R3T Thermistor (compressor suction)
R4T Thermistor (air heat exchanger, distributor)
R5T Thermistor (air heat exchanger, middle)
R6T Thermistor (refrigerant liquid)
R7T Thermistor (compressor shell)
R8T Thermistor (compressor port)
R9T Thermistor (entering water)
R10T Thermistor (leaving water)
R11T Thermistor (fin)
S1NPH High pressure sensor
S1PH, S2PH High pressure switch
S1PL Low pressure switch
T1A Current transfo
V1R, V2R (A2P) IGBT power module
V3R (A2P) Diode module
X1M, X2M Terminal strip
Installation manual
18
Y1E Electronic expansion valve (main)
Y3E Electronic expansion valve (injection)
Y1S Solenoid valve (4‑way valve)
Y2S Solenoid valve (low pressure bypass)
Y3S Solenoid valve (hot gas bypass)
Y4S Solenoid valve (liquid injection)
Z1C~Z10C Noise filter (ferrite core)
Z1F~Z4F (A1P, A3P) Noise filter
EPRA14~18DAV3+W1
Daikin Altherma 3 H HT
4P586100-1C – 2020.01