Protherm 100 Manual for instruction and use - page 19
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37
Legend to schematic electric diagrams for the 65 - 150 KLO / KLO EKO
boilers
HV
- main switch
PO1 -
power
mains
fuse
PT-TOP
- heating operation controls
TL1
- fault reset button, RESET
DT1
- red glow tube - fault indication control
DT2
- orange glow tube - overheating indication control
HT
- emergency thermostat
TS
- combustion fumes thermostat
TC
- pump thermostat
SP
- output switch - low (in the position LOW)
RE1
- Finder 40.52 relay, 230V AC coil
D1-4
- AC to DC converter diodes
D1-12
- AC to DC converter diodes
VDR1 -
varistor
VDR1-3 -
varistors
GV1
- gas valve (pilot burner and modulator)
GV2
- gas valve on-off
J1/1-12
- Molex 12-termin. connector for connecting an equivalent control unit
J2/1-6
- Molex 6- termin. connector
J3/1-7
- Molex 7- termin. connector
SV1
- main terminal box
SV2
- terminal box for connecting main gas valve GV1
SV3
- terminal box for connecting gas valve GV2
Table 6:
Description of connector J1
1
TC
Used only when no equithermal control unit is connected
2
TOP
(heating water)
Heating circuit pump
3
TUV
(hot utility water)
Reservoir feed pump
4
F5
Burner stage 2 - phase
5
N
Power supply – neutral wire
6
reg.
Used only when no equithermal control unit is connected
7
F4
Burner stage 1 - phase
8
K4
Burner stage 1
9
N
Power supply – neutral wire
10
SP
Used only when no equithermal control unit is connected
11
K5
Burner stage 2
12
L
Power supply - phase 230 V AC
Sc
hematics of the boiler KLO / KLO EK
O and thermostat R
V
A43.222