8 Technical data
Installation manual
16
EPRA14~18DAV3+W1
Daikin Altherma 3 H HT
4P586100-1B – 2019.09
8 Technical data
8.1 Piping diagram: Outdoor unit
3D124079B
R10T
R9T
R6T
R7T
R8T
R3T
R5T
R4T
R1T
R2T
S1PH
sv
sv
M1C
S1NPH
E1HHEX
sv
S1PL
S2PH
Y1E
Y3E
Y3S
M1F
Y4S
Y2S
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
ee
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 (5.6MPa)
S2PH High pressure switch (4.17MPa)
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 (hot gas bypass)
Y3S Solenoid valve (low pressure bypass)
Y4S Solenoid valve (liquid injection)
Thermistors:
R1T Outdoor air
R2T Compressor discharge
R3T Compressor suction
R4T Air heat exchanger, distributor
R5T Air heat exchanger, middle
R6T Refrigerant liquid
R7T Compressor shell
R8T Compressor port
R9T Entering water
R10T Leaving water
Refrigerant flow:
Heating
Cooling