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11 Technical data
Installation manual
38
EWAA004~008D2 + EWYA004~008D2
Packaged air-cooled water chillers
and packaged air to water heat pumps
4P688014-1A – 2022.05
11
Technical data
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).
11.1
Piping diagram: Outdoor unit
a2
i
h
g
a1
b
d
B1
PW
c
e
j
f
B
1P
R
k
l
m
n
o
t
S1
PH
p
q
s
s
r
A
B
3D139353 A
R1T
R1T
R4T
R3T
R3T
R2T
A
Hydro module
B1PW
Space heating water pressure sensor
B
Compressor module
B1PR
Refrigerant pressure sensor
S1PH
High pressure switch
a1
Water IN (screw connection, male, 1")
a2
Water OUT (screw connection, male, 1")
Thermistors (hydro module):
b
Drain valve (water circuit)
R1T
Outlet water heat exchanger
c
Expansion vessel
R3T
Refrigerant liquid side
d
Flow sensor
R4T
Inlet water
e
Plate heat exchanger
f
Automatic air purge valve
Thermistors (compressor module):
g
Safety valve
R1T
Outdoor air
h
Pump
R2T
Compressor discharge
i
Connection for optional flow switch
R3T
Compressor suction
j
Liquid stop valve
k
Filter
Refrigerant flow:
l
Electronic expansion valve
Heating
m
Muffler with filter
Cooling
n
Distributor
o
Heat exchanger
Connections:
p
4‑way valve
Screw connection
q
Accumulator
Flare connection
r
Compressor
Quick coupling
s
Muffler
Brazed connection
t
Gas stop valve with service port