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5
Key electric component rating
5-1. Hydro unit
HWT-602S21SM3W-E, HWT-602S21SM6W-E, HWT-602S21ST6W-E
No. Component name
1
Circulation pump for zone1
2
Backup heater 3 kW
3
Backup heater 6 kW
4
Backup heater 6 kW
5
Backup heater 9 kW
Water heat exchange tempera-
6
ture sensor (TC sensor)
Water inlet temperature sensor
7
(TWI sensor)
Water outlet temperature sen-
8
sor (TWO sensor)
Heater outlet water temperature
9
sensor (THO sensor)
Hot water cylinder temperature
10
sensor (TTW sensor)
Floor inlet temperature sensor
11
(TFI sensor)
12
Low pressure sensor
13
Thermal protector (auto)
Thermal protector (single
14
operation)
15
Flow sensor
16
Remote controller (Main)
17
Remote controller (Sub)
18
0 - 10 V Interface
19
Water 3-way valve
20
Water 2-way valve terminal
21
Mixing valve terminal
22
Circulation pump terminal
23
Booster heater terminal
24
Fuse (Backup heater)
25
PC board (Main)
26
PC board (Sub)
O······· Applied
OP ····· Optional accessory
Model name
M3W-E
M6W-E
T6W-E
O
O
O
O
O
O
–
–
–
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
–
–
–
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
OP
OP
OP
OP
OP
OP
O
O
O
O
O
O
–
–
–
–
–
–
O
O
O
O
O
O
O
O
O
O
O
O
36
Type name
Rating
UPM 4LK 15-75 130
AC230 V 0.66 A (MAX
SMP10E8304 3KW
AC230 V 3 kW
SMP10E8304 6KW
AC230 V 6 kW
SMP10E8304 6KW
AC400 V (3N) 6 kW
–
–
–
10 kΩ (25°C)
–
10 kΩ (25°C)
–
10 kΩ (25°C)
–
10 kΩ (25°C)
–
10 kΩ (25°C)
–
–
–
Operating pressure 0.20 MPa
Operating temperature
–
80±3°C DC42 V 0.2 A
Operating temperature
–
95±5°C AC250 V 16 A
VVX20
DC12 V 15 mA
HWS-AMSU51-E
HWS-AMSU51-E
HWS-IFAIP01U-E
AC230 V 6.5W
SSAE01AH01
3Wire SPDT type
AC230 V 0.1 A 2Wire type
–
mountable
–
–
–
–
–
AC230 V 1.0 A
–
AC250 V 25 A
MCC-1753
MCC-1755
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