ATTACK PELLET 30 AUTOMATIC PLUS Instructions For Use Manual page 39

Scheme with thermostatic three-way valve,
1 – boiler, 2 – regulator, 3 – panel of regulator, 4 – boiler temperature sensor,
6 – pump of central heating's circuit, 7 – thermostatic three-way valve, 8 – throttle valve,
9 – room thermostat, 10 – sensor of external temperature, 11 – DHW. tank, 12 – pump of
DHW circuit, 13 – sensor of DHW temeprature
RECOMMENDED SETTINGS:
Parameter
Operation of mixer 1
Short description of operation: Pump of central heating's circuit (6) and pump of D.H.W.
(12) start operating only when the switch-on temperature of the pump of central heating's
circuit is exceeded in the boiler (standard 40°C). If the water entering the boiler is cold, the
thermostatic valve (7) closes. The result is a water flow in the short circuit - boiler (1) -
throttle valve (8) - thermostatic valve (7) - pump (6). The thermostatic valve (7) opens when
the temperature of the water returning to the boiler rises and directs the boiler water to
the central heating system. If the water temperature measured by the sensor (13) falls
below the set DHW temperature, the DHW pump (12) is started. The DHW pump (12) is
switched off after the DHW tank (11) is heated - ie. when the temperature measured by the
sensor (13) is equal to the set DHW temperature.
Set value
off
37
MENU
Service settings → setting of mixer 1