Daikin Altherma EHFH-D3V - 10 Technical Data; Piping Diagram: Indoor Unit

10 Technical data
Installation manual
28
EHFH03S18D
Daikin Altherma 3 R F
4P596803-1D – 2022.08
10 Technical data
INFORMATION
This unit is a heating only model. Therefore, all references
to cooling in this document are NOT applicable.
A subset of the latest technical data is available on the regional Daikin website (publicly accessible). The full set of latest technical data is
available on the Daikin Business Portal (authentication required).
10.1 Piping diagram: Indoor unit
3D111411A
B1PW
M3S
B2PR
R3T
R8T
R2T
R1T
R5T
R4T
A
C
C
l
a2
a1
b2
g
e
h
k
k
i
j
m
n
j
d1
c2
d2
c1
B
k
f
f
b1
C
t
*s
o
p
q
o
*r
A Water side o Shut-off valve (recommended)
B Refrigerant side p Non-return valve (recommended)
C Field supplied q Pressure reducing valve (recommended)
*r Pressure relief valve (max. 10bar (=1.0MPa))(mandatory)
a1 Space heating water IN *s Tundish (mandatory)
a2 Space heating water OUT t Expansion vessel (recommended)
b1 Domestic hot water: cold water IN
b2 Domestic hot water: hot water OUT B1PW Space heating water pressure sensor
c1 Gas refrigerant IN (heating mode; condenser) B2PR Refrigerant pressure sensor
c2 Liquid refrigerant OUT (heating mode; condenser) M3S 3-way valve (space heating/domestic hot water)
d1 Liquid refrigerant IN (cooling mode; evaporator)
d2 Gas refrigerant OUT (cooling mode; evaporator) Thermistors:
e Plate heat exchanger R1T Heat exchanger – water OUT
f Shut-off valve for service (if equipped) R2T Backup heater – water OUT
g Expansion vessel R3T Liquid refrigerant
h Magnetic filter/dirt separator R4T Heat exchanger – water IN
i Safety valve R5T, R8T Tank
j Air purge
k Drain valve Connections:
l Pump Screw connection
m Flow sensor Flare connection
n Backup heater Quick coupling
Brazed connection