Centrometal El-Cm eBasic 12kW, Руководство по установке, эксплуатации и обслуживанию

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5.4 Connect external control of boiler
(room thermostat)
Electric connecting
Image 10: Connecting scheme of digital programmable
room thermostat (with battery supply )
Image 11: Scheme of room thermostat
EST 113 R5 connecting
WARNING: Use room thermostat with no-voltage contacts
Image 9: NOARK fuses
Scheme of boiler connecting on three-phase power supply
Image 8: NOARK fuses
Scheme of boiler connecting to mono-phase power supply
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ONLY FOR POWER OF 6kW AND 9kW
NOTE:
When there is only an electric boiler in the heating system, it is recommended to connect the external circulation as in Figures 7a, 7b, 8, 9.
The pump connected in this way is controlled by a microprocessor thermostat. This means that pump management has been improved:
After switching off the room thermostat, the pump remains on for another 2 minutes to remove dissipated heat energy from the heater,
in case of exceeding the allowed temperature in the boiler, the pump also switches on and prevents overheating ... In general, control
the pump is adapted to the needs of the electric boiler and in the function of protecting the boiler and the entire system.
If the same pump is used by an electric boiler and a solid fuel boiler, it is recommended to connect it according to the following
scheme:
CONNECTING A COMMON PUMP FOR 2 BOILERS
The signal from the microprocessor thermostat via KON2 includes
Relay P1. Signal 2 comes from the solid fuel boiler (or from the lean)
thermostat and includes Relay P2. Contact systems transmit both relays
the same phase to the Pump. If any Pump start signal is active - the pump is
switched on. If there are signals to switch on the pump from both boilers -
the pump is switched on safely. This kind of connection
the pump ensures its operation that suits both boilers.