HKS lazar SF 21, Operation And Installation Manual

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Fig. 12 Sketch of connections of the boiler to the heating and tap water system:
1 – boiler, 2 – ecoMAX800P1-L regulator, 3 – control panel, 4 – boiler temperature sensor,5 –
return temperature sensor, 6- central heating cycle pump, 7 – thermostatic three-way valve
(protecting boiler return), 8 – circulating pump, 9 –temperature sensor-weather, 10 – fluid coupling
(eliminates necessity of balancing the pumps‘ flows), 11 – domestic hot water temperature sensor,
12 – domestic hot water pump, 13 – mixer servo 1, 14 – mixer pump 1, 15 – external thermostat
protecting floor heating 55 ºC (it cuts off electricity supply for mixer pump after exceeding
maximum temperature - the thermostat is not included in the regulator), 16 –room thermostat of
mixer 1, 17 – mixer temperature sensor 1,18 –mixer servo 2, 19 – mixer pump 2, 20 – external
thermostat protecting floor heating 55 ºC, 21 – mixer room thermostat 2, 22 – mixer temperature
sensor 2,23 – mixer servo 3, 24 – mixer pump 3, 25 – external thermostat protecting floor heating
55 ºC, 26– room thermostat of mixer 3, 27 – mixer temperature sensor 3,28 –mixer servo 4, 29 –
mixer pump 4, 30 – room thermostat of mixer 4, 31 – mixer temperature sensor 4, 32 – extension
mixer module, 33 – domestic hot water tank.
Smart Fire Manual wer. 05/07/2012/EN/SL V2.0
HKS LAZAR str.28
Option available after
connecting a
extension module