Wiring Diagram: Outdoor Unit - Daikin Altherma 3 H MT EPRA08EAV3 Manuel D'installation

9.2

Wiring diagram: Outdoor unit

The wiring diagram is delivered with the unit, located at the inside of
the switch box cover.
English
Electronic component assembly
Front side view
Indoor
OFF
ON
Outdoor
Position of compressor terminal
Position of elements
Rear side view
Right side view
See note ***
(a)
Only for *W1 models.
Notes:
1 Symbols:
L Live
N Neutral
Protective earth
Noiseless earth
Field wiring
Option
Terminal strip
Terminal
Connector
Connection
2 Colours:
BLK Black
RED Red
BLU Blue
WHT White
GRN Green
YLW Yellow
PNK Pink
ORG Orange
GRY Grey
BRN Brown
3 This wiring diagram applies only to the outdoor unit.
4 When operating, do not short-circuit protective devices Q1,
S1PH and S2PH.
5 Refer to the combination table and the option manual for how
to connect the wiring to X5A
6 The factory setting of all switches is OFF, do not change the
setting of the selector switch (DS1).
7 Ferrite core Z8C consists of 2 separate core parts.
(a)
Only for *W1 models.
Legend in case of W1 models:
A1P Printed circuit board (main)
A2P Printed circuit board (noise filter)
A4P Printed circuit board (ACS)
BS1~BS3 (A1P) Push button switch
C1~C7 (A1P) Capacitor
EPRA08~12EAV3+W1
Daikin Altherma 3 H MT
4P634882-1B – 2021.09
Translation
Electronic component assembly
Front side view
Indoor
OFF
ON
Outdoor
Position of compressor terminal
Position of elements
(a)
Rear side view
Right side view
See note ***
(a) (a)
, X77A , X41A and X2M.
(a)
DS1 (A1P) DIP switch
E1H Drain tube heater (field supply)
E1HHEX Plate heat exchanger heaters
F1U Field fuse (field supply)
F1U~F4U (A2P) Fuse (T 6.3 A / 250 V)
F5U (A1P) Fuse (T 5.0 A / 250 V)
H1P~H7P (A1P) Light-emitting diode (service monitor is
orange)
HAP (A1P) Light-emitting diode (service monitor is
green)
K1R (A1P) Magnetic relay (Y1S)
K1R (A4P) Magnetic relay (E1HHEX)
K2R (A1P) Magnetic relay (Y2S)
K2R (A4P) Magnetic relay (E1H)
K3R (A1P) Magnetic relay (Y3S)
K5R~K8R (A1P) Magnetic relay
K1M~K2M (A1P) Magnetic contactor
K3M (A1P) Magnetic relay
L1R~L9R (A1P, A2P) Reactor
M1C Compressor motor
M1F Fan motor
PS (A1P) Switching power supply
Q1DI Earth leakage circuit breaker (30 mA) (field
supply)
Q1 Thermal overcurrent protector
R1~R9) (A1P) Resistor
R1T Thermistor (outdoor air)
R2T Thermistor (compressor discharge)
R3T Thermistor (compressor suction)
R4T Thermistor (air heat exchanger, liquid pipe)
R5T Thermistor (air heat exchanger, middle)
R6T Thermistor (refrigerant liquid)
R7T Thermistor (injection)
R9T Thermistor (entering water)
R10T Thermistor (leaving water)
R11T Thermistor (fin)
RC (A1P) Signal receiver circuit
S1NPH High pressure sensor
S1PH, S2PH High pressure switch
SEG* (A1P) 7‑segment display
V1D~V3D (A1P) Diode
V1R~V2R (A1P) Diode module
V3R~V5R (A1P) Insulated Gate Bipolar Transistor (IGBT)
power module
X1M, X2M Terminal strip
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~Z11C Noise filter (ferrite core)
Z1F~Z5F (A1P, A2P) Noise filter
9 Technical data
Installation manual
19