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Field Supply Accessories (Optional)
No.
Part
Electromotoric Actuator
2-way valve kit
i
*Cooling model
Electromotoric Actuator
3-way valve kit
ii
iii
Room thermostat
iv
Mixing valve
v
Pump
vi
Buffer tank sensor
vii
Outdoor sensor
viii
Zone water sensor
ix
Zone room sensor
x
Solar sensor
It is recommended to purchase the fi eld supply accessories listed in above table.
DIMENSION DIAGRAM
1
500
FRONT VIEW
427
326.5
141.5
62
58.5
BOTTOM VIEW
Pipe Position Diagram
f
e
a
b
c
d
Model
SFA21/18
2-port Valve
VVI46/25
SFA21/18
3-port Valve
VVI46/25
Wired
PAW-A2W-RTWIRED
Wireless
PAW-A2W-RTWIRELESS
-
167032
-
Yonos 25/6
-
PAW-A2W-TSBU
-
PAW-A2W-TSOD
-
PAW-A2W-TSHC
-
PAW-A2W-TSRT
-
PAW-A2W-TSSO
340
SIDE VIEW
Letter Pipe Description
a
Refrigerant liquid
b
Refrigerant gas
c
Water outlet
d
Water inlet
e
Drain water hole
f
Pressure relief valve drainage
Specifi cation
Maker
AC230V
Siemens
-
Siemens
AC230V
Siemens
-
Siemens
AC230V
-
AC230V
Caleffi
AC230V
Wilo
-
-
-
-
-
-
-
-
-
-
Main Components
1
2
3
9
8
0
a
b
f
c
d
e
Connection Size
5/8-18UNF
7/8-14UNF
R 1¼"
R 1¼"
-
3/8"
4
5-1
5-2
1 Cabinet front plate
2 Cabinet side plate (2 pieces)
3 Remote controller
4 PCB
5-1
Single Phase RCCB/ELCB (Main Power)
5-2
Single Phase RCCB/ELCB (Backup Heater)
6 Control board cover
7 Control board
8 Flow sensor
9 Air purge valve
0 Backup heater
a Overload protector
b Expansion vessel
c Pressure relief valve
d Water pressure gauge
e Water fi lter
f Water pump
6
7
3
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