
Boiler System layout 8: Cascade boiler configuration. Only heating shown here. DHW is possible also.
External control (ie. Tekmar 261) required to cascade boilers.
Legend
For boiler details refer to layout no. 1 and 2.
LLH
Low Loss Header
EC
External control (cascade control)
RT
Room Thermostat
11) System layout: Combi or Heating only appliance in cascade configuration
with: Heating circuit with low loss header
50
Содержание R Series
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