elco AEROTOP T Series, Плановый документ

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Hydraulic System
AEROTOP T Cascade with PWH Isolating Circuit
Application / Description:
Several heat pumps, uncoupled, with
buffer storage and mixed heating
circuit.
A heat pump is specifically assigned
the task of heating potable water.
Water heating with water heater with
external exchanger (Magro charge).
Optimal with floor heating or radiator
heating with variable flow to optimize
run times and satisfy higher service
water demands.
A6 Remote control (option)
B1 Flow sensor
B3 Service water sensor
B4 Storage sensor top
B9 Exterior sensor B10 Bar flow temperature sensor
B31 Service water sensor
B41 Storage sensor bottom
N1 Heat pump controller (built-in)
Q2 Heating circuit pump
Q9 Circulating pump
Q33 PWH charge pump
Y1 Mixing valve gear
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.
If the currently running heat pump
cannot satisfy the energy demand
within a specific time, an additional heat
pump/heat generator switches on
(additional activation controlled by
sensor B10 and assigned set point).
Charging continues until the set point
has been reached at lower sensor B41.
The heating circuit mixing valve Y1 is
controlled via the flow sensor B1.
Hot Water
Sensor B3 activates the water heating.
Both charge pumps Q3 and Q33 are
activated. The thermal mixing valve
ensures that the charge is not released
to the storage tank until the min. charge
temperature has been reached.
Charging continues until the set point
at sensor B31 has been reached.
Protection from Legionella pneumophila
bacteria and auxiliary heating to a
higher temperature levels is carried out
via electrical heater element R6.
Thanks to the PWH isolating circuit, a
HP can be dimensioned and selected
specifically for producing potable water.
For example, a heat pump can be
combined with different outputs. This
makes it possible to heat potable
water more efficiently and allows to
run the system more efficiently as well
since the heat pump is only specifically
assigned to heat potable water in the
summer. While in heating mode, the
outputs of the two heat pumps are
added to cover the required energy
demand.
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