elco AEROTOP T Series, Planning Document

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Hydraulic System
AEROTOP T 2-6-H
79
B9 Exterior sensor
B3 Service water sensor
B4 Storage sensor
B41 Storage sensor
B1 Flow sensor
A6 Remote control (optional)
Q3 Switchover valve
Q9 Circulation pump
Q2 Heating pump circuit, controlled
R6 Electrical heater element (option)
R25 Electrical heater element /T07-T16)
Y1 Mixing valve gear
TS Safety thermostat for floor heating
Standard 2-6-H
Application / Description:
Heat pump uncoupled with buffer
storage and mixed heating circuit.
Hot water heating with coil hot water
heater. Optimal with floor heating or
radiator heating with variable flow and
limited hot water demand.
Function Description:
Heating Cycle
The heat pump is activated via sensor
B4 and exterior sensor B9 when
requesting heat. The storage charge
pump Q9 starts running simultaneously.
The switchover valve is at position B.
Storage is charged. Charging continues
until the set point has been reached at
lower sensor B41. The heating circuit
mixer Y1 is controlled via the flow
sensor B1.
NOTE:
To avoid damages to the internal
storage, the PHW-storage must be
pressurized first before filling of the
heating circuit (i.e. fill the PHW-storage
first) Hot Water
Sensor B3 activates the water heating.
The switchover valve Q3 is switched to
position A. Charging continues until the
nominal value has been reached at
sensor B31. Protection from Legionella
pneumophila bacteria and auxiliary
heating to a higher temperature level
is carried out via electrical heater
element R6.