Bosch FS 151 - System 25 Heatronic Internal Wiring and Settings

Applications Manual Bosch Greenstar | 55
Bosch Thermotechnology Corp.
Data subject to change
System #25
reset
eco
1
2
34
5
6
max
1
2
34
e
6
max
DHW thermostat
min
e
max
Typical DHW temperatures
approx. 104 °F (40 °C)
approx. 122 °F (50 °C)
approx. 140 °F (60 °C)
Boiler
Heating
Dial
1
2
3
Typical supply
temperatures
approx. 95 °F (35 °C)
approx. 109 °F (43 °C)
approx. 122 °F (50 °C)
4
5
6
approx. 140 °F (60 °C)
approx. 153 °F (67 °C)
approx. 167 °F (75 °C)
max Approx. 194 °F (90°C)
Application
Frost protection
Radiant floor heating
Panel radiator system
Cast Iron radiator system
Baseboard & convector system
Low Voltage
Wiring:
Line Voltage
Ź Wire Bosch Control to Terminals B B of the
Heatronic control
Ź Wire Main power supply (120 v) to White molex
Heatronic Settings:
Heatronic Internal Wiring
B
B
4
2
1
A
F
9
7
8
LWCO
Supply Sensor
DHW Sensor
Dry contacts
Bosch Controls
Outdoor
Sensor
External Boiler Junction box
120 Vac Supply
Ground
Neutral
L
N
black
ch pump
for unmixed heating
(Not Used)
L
N
white
mains
120v/60 hz
Note: For Low Water Cutoff Wiring see
Appendix D of this manual
Bosch
Control