15
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Technical data
Installer reference guide
231
EPRA14~W1 + ETVH/9W(G)
Daikin Altherma 3 H HT F
4P587502-1 – 2019.07
15.2 Piping diagram: Outdoor unit
3D124079C
R10T
R9T
R
6T
R7T
R8T
R
3T
R5T
R4
T
R
1T
R2T
S1PH
sv
sv
M1C
S1NPH
E1HHEX
sv
S1PL
S2
PH
Y1E
Y3E
Y2S
M1F
Y4S
Y3S
Liquid
Gas
Y1S
b
d
e
n
n
c
d
i
j
k
l
g
i
i
i
f
f
f
f
m
h
a
e
e
l
1N~
*
*
3N~
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
E1HHEX
Plate heat exchanger heater
M1C
Compressor
M1F
Fan motor
S1PH
High pressure switch (5.6 MPa)
S2PH
High pressure switch (4.17 MPa)
n
Muffler
E1HHEX
Plate heat exchanger heater
M1C
Compressor
M1F
Fan motor
S1PH
High pressure switch (5.6 MPa)
S2PH
High pressure switch (4.17 MPa)
S1PL
Low pressure switch
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)
R1T
Outdoor air
R2T
Compressor discharge
R3T
Compressor suction
R4T
Air heat exchanger, distributor