Bosch FS 151 - System 9 Heatronic Internal Wiring and Settings

Applications Manual Bosch Greenstar | 23
Bosch Thermotechnology Corp.
Data subject to change
System # 9
reset
eco
1
2
34
5
6
max
1
2
34
e
6
max
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
Heatronic Settings:
Low Voltage
Ź Remove factory jumper from terminal #2 & #4
and connect to End Switch of Mult-Zone relay (dry
contacts only)
Wiring:
Line Voltage
Ź Wire Main power supply (120 v) to White molex
of Boiler external junction box
Outdoor Sensor
Ź install FW200 on front of
boiler (see manual)
Ź install outdoor air sensor
Ź Follow FW200 Quick
Set-up guide in Appendix C
If using FW200 (Optional):
Heatronic Internal Wiring
B
B
4
2
1
A
F
9
7
8
LWCO
Supply Sensor
DHW Sensor
Dry contacts
Bosch Controls
Outdoor
Sensor
Supply Sensor
( end switch )
TTTTTT
Zone 3
Zone 1
Zone 2
Zone 3
Zone 1
Zone 2
L
NG
X
X
External Boiler Junction box
120 Vac Supply
120 Vac
Power
Ź Wire 120 Vac power supply to zone relay
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
DHW thermostat
min
e
max
Typical DHW temperatures
approx. 59 °F (15 °C)
approx. 131 °F (55 °C)
approx. 158 °F (70 °C)