Boiler Installation

Connection scheme of two boilers working in cascade

Boilers connected in cascade enables the heating of bigger buildings. Boilers should be of the same output. Such a system gives better possibilities of heat source dynamics than a system with only one boiler. Particularly in “transition period” (springtime or autumn) boilers may be serviced alternately. Boilers with such a connection enables for its utilization with the output close to nominal, which warrants boiler longer durability.

  1. Boiler
  2. MK.CS mixing valve drive
  3. Circulating pump
  4. Differential valve
  5. Operational water heater
  6. Compensating vessel
  7. Exit for warm operational water heater
  8. Cold water entry
  9. Four-way mixing valve DUOMIX C
  10. Outdoor Thermostat


Connection scheme of heat accumulation system

Heat accumulation tanks allows for boilers better adjustment according to actual weather conditions. In transition period (the spring, autumn) any boiler without heat accumulation set is switched on and off very often. If the set is connected, the boiler works constantly and the energy is lost into the vessels. Each boiler switching on and off means fuel losses. It may be avoided if the heat accumulation set is used.

Simultaneously, in the transition period (the lowest temperature in winter time) the accumulation set helps to reheat the whole central heating system.

Also it should be mentioned that few heat sources such as solar collector, heating pump, or similar may be connected to the heat accumulation set.

  1. Boiler with A 3000 regulator
  2. LADDOMAT 21 thermo regulator
  3. Accumulation tanks
  4. Mixing valve drive
  5. Heating system exit
  6. Three-way mixing valve
  7. Opened compensating vessel
  8. Circulating pump
  9. CZ04 room temperature sensor
  10. CZ03 outer temperature sensor
  11. CZ02 feeding water temperature sensor


Connection scheme of the heat accumulation set with one vessel

  1. Boiler with A 3000 EV regulator
  2. LADDOMAT 21 thermoregulator
  3. NAD, NADO accumulation tank
  4. Electrical heater
  5. Three-way mixing valve MIX C (MIX BP, MIX AP, MIX P)
  6. Circulating pump
  7. CZ04 room temperature sensor
  8. Heating system exit
  9. Mixing valve drive
  10. Opened compensating vessel
  11. CZ03 outer temperature sensor
  12. Mixing valve
  13. CZ02 feeding water temperature sensor