Thermo 230 / 231 / 300 / 301 / 350
7 Circuit Diagrams
705
Fig. 704 Automatic Control Circuit with Control Unit 1572D and Standard Timer
1
3
3
3
3
3
3
4
2
1
Diagnostic connector
2
Timer P:
with plus to connection 10 = continuous operating during immediate heating
terminal 10 not connected = duration of heating programmable (10 min to 120 min);
3
Pin assignment:
Pin assignment
4wire lead
7wire lead
D1
0.75 gr
0.75 rt
D2
0.75 or
0.75 or
D3
0.75 gn
0.75 bl
D4
0.75 br
2.0 br
F1
not used
2.0 sw
F2
not used
2.0 rt/ws
4
with connection to terminal 61 auxiliary
Item
Nomenclature
Remark
P
Standard timer (1531)
for timed operation
S3
Switch
external trigger circulation pump
S4
Switch
power save operation
U1
Igniter box
U2
Igniter electrodes
W1
Wiring harness (1)
W2
Wiring harness (2)
A
Plug connections, 6-pole
C
Plug connections, 1-pole
D
Plug connections, 4-pole
F
Plug connections, 2-pole
X1
Plug connections, 6-pole
X2
Plug connections, 2-pole
X3
Plug connections, 8-pole
X4
Plug connections, 12-pole
Y1
Solenoid valve
Item
Nomenclature
Remark
A1
Heater
A2
Control unit
SG 1572D
B1
Flame sensor
observe polarity
B2
Temperature sensor
polarity optional
B3
Temperature limiter
B4
Thermostat
for nozzle preheating
B5
Thermostat
alternative to B3
B6
Thermostat
for vertical installation (MV Y1)
E1
Heating cartridge
for nozzle preheating
F1
Fuse 5 A
flat fuse DIN 72581 part 3
F2
Fuse 25 A
flat fuse DIN 72581 part 3
F3
Fuse 25 A
flat fuse DIN 72581 part 3
H1
Light
operation indicator light
H2
Light
flame indicator
H4
Symbol for “Heating”
in Display
symbol lighting (in item P)
M1
Motor
combustion air fan
M2
Motor
circulation pump
bl
br
ge
gn
gr
or
rt
sw
vi
ws
Wire colors
blue
brown
yellow
green
gray
orange
red
black
violet
white
Wire gauges
< 7.5 m
7.5 - 15 m
0.75 mm
2
1.0 mm
2
1.5 mm
2
2.5 mm
2
4.0 mm
2
1.5 mm
2
1.5 mm
2
2.5 mm
2
4.0 mm
2
6.0 mm
2
Содержание thermo 231
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Страница 10: ...1 Introduction Thermo 230 231 300 301 350 104 Page empty for notes...
Страница 26: ...4 Technical Data Thermo 230 231 300 301 350 404...
Страница 50: ...7 Circuit Diagrams Thermo 230 231 300 301 350 712...
Страница 72: ...10 Packaging Storage Shipping Thermo 230 231 300 301 350 1002 Page empty for notes...
Страница 73: ...Thermo 230 231 300 301 350 Annex A A 1 Annex A Scheduled Maintenance...