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17
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Technical data
17.2 Piping diagram: Outdoor unit
a Gas stop valve with service port
b Liquid stop valve with service port
c Filter
d Rectifier
e Economiser
f Heat sink
g Distributor
h Heat exchanger
i Service port 5/16" flare
j Accumulator
k Muffler
M1C Compressor
S1PH High pressure switch
S1PL Low pressure switch
S1NPH Pressure sensor
Y1E Electronic expansion valve (main)
Y3E Electronic expansion valve (injection)
Y1S Solenoid valve (4-way valve)
Installer reference guide
290
c
S1PH
b
k
S1NPH
a
j
d
Y1S
Y1E
f
Y3E
k
*
e
M1C
1N~
3N~
*
*
Thermistors:
R1T Outdoor air
R2T Compressor discharge
R3T Compressor suction
R4T Air heat exchanger
R5T Air heat exchanger, middle
Refrigerant flow:
Heating
Cooling
Connections:
Flare connection
Brazed connection
c
**
h
R5T
g
i
1N~
3N~
**
**
3D131968
ERLA11~16D + EBSH/X(B)11+16P30+50D
Daikin Altherma 3 R ECH₂O
4P663482-1C – 2023.05
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