Daikin EPRA08EAV3, Installer'S Reference Manual

Page: 262 / 292

16 | Technical data
Installer reference guide
262
EPRA08~W1 + ETVH/9W
Daikin Altherma 3 H MT F
4P634886-1 – 2021.03
16.2 Piping diagram: Outdoor unit
3D127127
R10T
R9T
R
6T
R
3T
R5T
R
4T
R
1T
R2T
S1PH
sv
sv
M1C
S1NPH
E1HHEX
sv
S2
PH
Y1E
Y3E
Y2S
M1F
Y4S
Y3S
Liquid
Gas
Y1S
R7T
Q1E
b
d
e
n
n
c
d
i
j
k
l g
i
i
i
f
f f
f
m
h
a
e
o
Gas Gas Thermistors:
Liquid Liquid R1T Thermistor - outdoor air
a Water IN (screw connection, male, 1") R2T Thermistor - compressor discharge
b Water OUT (screw connection, male, 1") R3T Thermistor - compressor suction
c Plate heat exchanger R4T Thermistor - air heat exchanger, distributor
d Pinched pipe R5T Thermistor - air heat exchanger, middle
e Refrigerant filter R6T Thermistor - refrigerant liquid
f One-way valve R7T Thermistor - injection
g Economiser heat exchanger R9T Thermistor - entering water
h Service port 5/16" flare R10T Thermistor - leaving water
i Capillary tube
j Distributor
k Air heat exchanger Refrigerant flow:
l PCB cooling Heating
m Accumulator Cooling
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