Piping Diagram: Outdoor Unit - Daikin EPRA10EAV3 Installer's Reference Manual

16.2 Piping diagram: Outdoor unit

d
k
i i
R5T
j
Gas Gas
Liquid Liquid
a Water IN (screw connection, male, 1")
b Water OUT (screw connection, male, 1")
c Plate heat exchanger
d Pinched pipe
e Refrigerant filter
f One-way valve
g Economiser heat exchanger
h Service port 5/16" flare
i Capillary tube
j Distributor
k Air heat exchanger
l PCB cooling
m Accumulator
n Muffler
o Casing
E1HHEX Plate heat exchanger heater
M1C Compressor
M1F Fan motor
S1PH High pressure switch (4.6 MPa)
S2PH High pressure switch (4.17 MPa)
S1NPH High pressure sensor
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)
Q1E Overload
EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663478-1B – 2022.07
h
l
Y3E
Y4S
M1F
i
i
m
Y1E
f
f
g
R7T
sv
Y2S
Y1S
sv
Y3S
S1PH
n
n
Q1E
o
M1C
Thermistors:
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 - injection
R9T Thermistor - entering water
R10T Thermistor - leaving water
Refrigerant flow:
Heating
Cooling
16
|
e
f
f
d
Gas
Liquid
S1NPH
e
R2T
Technical data
c
R10T
b
a
R9T
3D127127
Installer reference guide
273