Piping Diagram: Indoor Unit - Daikin EBVZ-D9W Installer's Reference Manual

17 | Technical data

17.3 Piping diagram: Indoor unit

C
a2
h
D
u u
v
c2
d
w
c1
*x
*y
*z
C
a1
h
C
b1
h
C
b2
h
A Water side
B Refrigerant side
C Field installed (delivered with the unit)
D Field supplied
a1 Additional zone – Space heating/cooling – Water IN (screw connection, 1")
a2 Additional zone – Space heating/cooling – Water OUT (screw connection, 1")
b1 Main zone – Space heating/cooling – Water IN (screw connection, 1")
b2 Main zone – Space heating/cooling – Water OUT (screw connection, 1")
c1 DHW – Cold water IN (screw connection, 3/4")
c2 DHW – Hot water OUT (screw connection, 3/4")
d Recirculation connection
e1 Gas refrigerant IN (heating mode; condenser)
e2 Liquid refrigerant OUT (heating mode; condenser)
f1 Liquid refrigerant IN (cooling mode; evaporator)
f2 Gas refrigerant OUT (cooling mode; evaporator)
g Plate heat exchanger
h Shut-off valve for service
i Flexible pipe
j Expansion vessel
k Magnetic filter/dirt separator
l Safety valve
m Automatic air purge
n Drain valve
o Pump (additional/direct zone)
p Check valve
q Backup heater
r Water filter (main/mixed zone)
Installer reference guide
268
A
X
M
M3S
R8T
R5T
l
j
i
s
r
n
B1PW
m
B2L
R1T
R2T
q
m
o
p
k
n
p
M1S
t
M
X
B
g
R3T
R4T
n
R7T
ERLA11~16D + EBVZ16S18+23D
f2
e1
e2
f1
3D128639
Daikin Altherma 3 R F
4P643604-1B – 2022.05