17
Subject to change without notice.
83054800bUK – Translation into English of the original German operating manual ait-deutschland GmbH Subject to change without notice.
Subject to change without notice.
83054800bUK – Translation into English of the original German operating manual ait-deutschland GmbH
Buffer tank
The hydraulic integration of the heat pump requires a buffer
tank in the heating circuit. It ensures a minimum running
time for the heat pump if the heating circuit valves are shut
off. The required volume of the buffer tank is calculated
using the following formula:
V
Buffer tank
=
minimum throughput heating circuit flow rate / hour
10
For the minimum throughput of the heating circuit
flow rate, see “Technical data/Scope of supply”
overview, “Heating circuit” section.
In mono-energetic air/water systems, integrate the buffer
tank in the heating water outlet (flow) upstream of the
overflow valve.
Water heating
Water heating with the heat pump requires another heating
water circuit in addition (parallel) to the heating circuit.
When integrating, make sure that the hot water supply is
not fed through the buffer tank of the heating circuit.
“Hydraulic integration” document.
Hot water tank
If the heat pump is to be used to heat water, you must
integrate special hot water tanks in the heat pump system.
Choose the storage volume so that the required quantity of
hot water is available even during a power cut.
The heat exchanger surface of the hot water tank must be
dimensioned so that the heating capacity of the heat pump
is transferred with minimum temperature drop. We offer a
variety of hot water tanks for you to choose from. They are
optimally matched to your heat pump.
Integrate the hot water tank in the heat pump system as
shown in the hydraulic diagram for your system.
CONDENSATE DRAIN
The condensate precipitated from the air must be drained
through the hose for condensate discharge provided on the
unit. To this end, connect the hose for condensate discharge
with a water drain.
Positioning of the condensate discharge connec-
tion, refer to the dimensioned drawings for the
respective unit model.
1 Hose for condensate discharge inside the unit
2 Connection for condensate drain
on the outside of the unit
ATTENTION
Lay the hose for condensate discharge provided
inside the unit as a trap, as shown in the figure.
Discharge of the condensate into the sewers is permitted
only via a trap with funnel inlet, which must be accessible
at all times.
Pressure safety
Equip the heating circuit with a safety valve and expansion
vessel in accordance with local standards and guidelines.
Also install filling and draining emptying devices, shut-off
devices and non-return valves in the heating circuit.
Circulation pump
The circulation pump is installed in the unit. Only one
PWM signal is available for the circulation pump, therefore
the domestic hot water supply must be provided with the
changeover valve via the BUP outlet. Normally open equals
heating.
