Alpha-InnoTec LW 140A, Руководство по эксплуатации

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Subject to change without notice | 83054200iUK | ait-deutschland GmbH
17 Pressure relief
Equip the heating circuit in accordance with local
standards and directives with a safety valve and an ex -
pansion tank.
Also install filling and emptying devices, shut-off devic
-
es and non-return valves in the heating circuit.
18 Overflow valve
Use an overflow valve for tanks integrated in series to
ensure the minimum flow rate of the heating circuit vol -
ume flow through the heat pump. The overflow valve
must be dimensioned so that the minimum flow rate
of the volume flow through the heat pump is ensured
when the heating circuit is shut off.

“26 Set the overflow valve”, page 17
19 Buffer tank
The hydraulic connection of the heat pump requires a
buffer tank in the heating circuit. The required volume
of the buffer tank is calculated based on the following
formula:
V
Pufferspeicher
=
Minimum flow rate of
heat circuit volume flow / hour
10

For the minimum flow rate of the heat circuit vol -
ume flow, see “Technical data / scope of delivery“,
from page 22,“Heating circuit” section
In mono-energetic air/water systems, integrate the
buf-fer tank in the heating water outflow (forward flow)
before the overflow valve.
20 Circulating pumps
CAUTION
Always note the model.
Do not use regulated circulating pumps.
Circulating pumps and domestic hot water cir -
culation pumps must be multi-stage pumps.
21 Water heating
Water heating with the heat pump requires an addi -
tional hot water circuit, parallel to the heating circuit.
Make sure that the heating water charge is not chan -
neled through the buffer tank of the heating circuit.

“Hydraulic connection” instructions
22 Hot-water tank
If the heat pump will be used for heating hot water,
you must integrate special hot-water tanks in the heat
pump system. The storage volume must be sufficient
so that the required hot water quantity is available
even during a power outage.
NOTE
The heat exchanger surface of the hot water
tank must be dimensioned so that the heating
capacity of the heat pump is transferred with
minimal spreading.
We offer a variety of hot-water tanks for you to choose
from. They are optimized for use with your heat pump.
NOTE
Integrate the hot-water tank in the heat pump
system corresponding to the hydraulic dia -
gram for your system.