T-HG max
maximum hot gas temperature
Setting for the maximum permissible temperature in the
cooling circle of the heat pump.
T-def.airend
Temperature air defrost end
A value is only displayed for L/W devices and if the air defrost
is switched on.
Setting for the temperature at which the air defrosting is
terminated at the outlet of the evaporator.
pagpage 38, “Overview: Defrost cycle, Air defrost,
Flow Max“
Lowering to
Maximum lowering
Setting for the external temperature up to which a night
lowering is carried out.
If the actual external temperature falls below the set value,
the lowering temperature is ignored.
Minimum return set-point temperature
Minimum return set-point temperature, will not be exceeded
in operation.
Minimum MK1 ow
Minimum ow temperature, will not be exceeded in
operation.
Flow Max.
)
Maximum ow temperature
If this temperature is exceeded in the ow, a compressor of
the heat pump is switched o. This applies to all supply types!
page 38
Flow max. MK1
Maximum ow temperature following
the charger mixer
Is only displayed if mixing circle 1 is set to charger mixer.
The forward ow sensor at TB1 will then be used to limit the
ow temperature following the mixer. This means: if the TB1
exceeds the value set here, the charger mixer will be moved
in >Closed< direction.
min. AT Flow max.
)
Heat source temperature-dependent
adjustment of the ow temperature.
Heat source temperature-dependent adjustment of the ow
temperature.
The outside temperature, up to which the ow max.
temperature with the heat pump may be increased, is
adjusted here.
Below this outside temperature, the actual VL maximum
temperature of the heat pump will fall linearally to the value
“Forward ow EG“.
Flow limit of applic.
)
Heat source temperature-
dependent adjustment of the ow
temperature.
Here, the maximum forward ow temperature of the heat
pump is set at an outside temperature of -20°C.
For further details, see point “min. AT VL max.” and the
following diagrams:
In the event of a fault and the setting fault with a 2 hg, the
second heat generators are released independently of the set
external temperature.
Tp-defr.Air.
Temperature air defrost
A value is only displayed for L/W devices and if the air defrost
is switched on.
Setting for the release temperature for the air defrost. Below
the set temperature, the air defrosting is locked.
ATTENTION
Set air defrost only if device type is approved for air de-
frost.
TDI-Solltemp.
TDI setpoint temperature
Setting for the setpoint temperature for the thermal
disinfection in the domestic hot water preparation.
Hysterese.DHW
Hysteresis of domestic hot water
Setting for the control hysteresis for the domestic hot water
preparation (negative hysteresis).
A There will be no request for domestic hot water
preparation in this temperature range
B There will be a request for domestic hot water
preparation in this temperature range
C Domestic hot water target
D negative hysteresis
Flow 2. CP DHW
Flow 2nd compressor
Domestic hot water
Is only displayed for devices with 2 compressors.
Setting for the ow temperature from which domestic hot
water is prepared with a compressor.
Optimisation of the charging time and the attainable
domestic hot water temperatures..
T-outd. max
maximum external temperature
A value is only displayed for L/W devices
Setting for the maximum external temperature from which
the heat pump is locked.
Second heat generators are released as required..
T-outd. min
minimum external temperature
A value is only displayed for L/W devices.
Setting for the minimum external temperature under which
the heat pump is locked.
Second heat generators are released as required..
T-HS min Minimum heat source temperature
A value is only displayed for S/W- or W/W devices.
Setting for the minimum permissible temperature at the heat
source outow of the heat pump..
for S/W devices:
With AS access, a value above -9 °C can be set
(necessary for integration with intermediate
exchangers) for S/W devices
for W/W devices
The setting is only available with manufacturer
access..
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