TECH ST-402N PWM, Руководство пользователя, Страница: 15 / 32

Tech
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V.a.14) Scheme 14/17 – Reheating the CH Return
Installation 14/17 Operates:

The Collector Pump.
 The switching valve between the direct flow to the boiler
and flow through the tank.
 The Accumulation Tank – solar with top and bottom
circulation.
 The second tank (heated with an additional heat source
e.g. the CH Boiler).
 One direction of the collectors' location.
 Pump of tank 2 – the Mixing Pump.
Installation Sensors:
 The collector's sensor.
 The two sensors of the Accumulation Tank.
 Sensor of the second tank.
This installation is able to independently control from which tank it collects hot water for the
facility (the regulator selects the tank with the higher temperature). In periods of large insulation,
temperature in the Solar Tank may be high and it may be transferred to the second tank and thus may
be used to heat more water than only that in the Solar Tank.
Note: Not possible to connect and select an additional device - the submenu Peripherals is hidden in
the controller's service menu. The switching valve operating the additional receiver is connected instead
of the peripherals.
Additional parameters to be adjusted:
 Valve hysteresis.
 Operation algorithm.
 Deactivation delta of pump 2.
 Activation delta of pump 2.
V.a.15) Scheme 15/17
Installation 15/17 Operates:
 The Collector Pump.
 The Switching Valve.
 The Accumulation Tank - Solar.
 The second tank (heated with an additional heat source
e.g. the CH Boiler).
 One direction of the collectors' location.
 Additional peripherals.
Installation Sensors:
 The collector's sensor.
 The two sensors of the Accumulation Tank.
 Sensor of the second tank.
This installation is able to control which tank it collects hot
water from for the facility – it allows the user to switch valve to water intake from whichever tank has
the warmer water. In periods of poor insulation (i.e. the winter period), water is taken from the second
tank (heated with an additional heat source, e.g. the CH Boiler). On the other hand, water from the
solar tank heated by the solar installation reaches the input of the second tank as cold water
.