Electrical Connections - Centrometal PelTec 12 Technical Instructions

Electrical connections

5.0. ELECTRICAL CONNECTIONS
All electrical works must be performed by a certified professional in accordance with valid national and
European standards. If the supply cord is damaged, it must be replaced by the manufacturer, its service
agent or similarly qualified persons in order to avoid a hazard. A device for switching of all power supply
poles must be installed in electrical installation in accordance with the national regulations on electrical
installations. Pump of heating system should be connected to boiler control unit PelTec/PelTec-lambda.
CAUTION: When connecting any electrical part be sure to unplug the boiler at the main
switch and disconnect the power supply.
Figure 8. Connectors for power
supply, el. components and sensors
POWER SUPPLY
1
M1 – Pellet srew feeder
2
3 M2 – Actuator for 4-way mixing valve
M3 – Fan
4
5 P1 - Pump 1
P2 - Pump 2
6
7
P3 - Pump 3
1
25
8
5
6
P1
9
7
P2
10
24 P3
P4
2
11
M1
3
12
M2
13
4
M3
23
If heating system contains DHW, on the connector S1 is connected hot water sensor, and if the heating system
contains 2 heating circuit, on the connector S1 is connected the room
*External control can be connected only in configurations: 4: BUF, 6: BUF--IHC, 8: BUF--DHW, 9: BUF-IHC||DHW,
10: CRO, 14: BUF--IHCx2 into the connector S6 and configuration 11: CRO/BUF into connector S9.
** Only PelTec-lambda
Note: It is obligatory mount the sensor in the socket for sensors using thermal paste
30
*
*
12kW/18kW
21 20 22
The main switch
Display
PCB (Printed circuit board)
PCB inputs (electronic board inputs)
Connectors for pump / zone
valve
S1 - DHW sensor / Room thermostat
8
2.circuit - Temperature sensor
NTC 5K - PVC l=2000 (26226)
9 S2 - Acc. (buffer) tank 1 sensor (upper) /
Hydraulic crossover sensor - Temperature
sensor NTC 5K - PVC l=2000 (26226)
S3 - Acc. (buffer) tank 2 sensor (down) -
10
Temperature sensor NTC 5K - PVC l=2000 (26226)
11
S4 - Flue gas temperature sensor - Temperature
sensor PT 1000 - Teflon l=1700 (62330)
12 S5 - Outdoor temperature sensor - Outdoor
temperature sensor NTC 5K (31428)
S6 - Main flow temperature sensor / External control -
13
Temperature sensor NTC 5K - PVC l=2000
(26226)
14
15
14 15
16
17
18
19
8
5
23
Technical instructions PelTec-lambda
S7 - Return flow temperature
14
S8 - PVC tube bimetal sensor
15
*
S9 - Room thermostat (voltage-
16
S10 - Alarm output 1
17
S11 - Alarm output 2 (reserve)
18
S12 - Fuel level sensor - Fuel level
19
20
21
22
* *
23
24
25
24kW - 96kW
16 17 18 19
22
10 11
9
12 13
6
thermostat.
sensor - Temperature sensor
NTC 5K - PVC l=2000
(26226)
free contact)/External control
sensor CMSR 100 (26199)
- Connector UTP
- Reserve
- Reserve
- Lambda probe cable
- P4
- F4 (main fuse)
20
1
25
2
3
4
24
7 21