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Subject to technical amendments without prior notice | 83055400iUK – 2.1 | ait-deutschland GmbH
hysteres.SW
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
RT incr.max
Return increase maximum
Setting for the maximum permissible overshoots of the return
temperature. If the return temperature is overshot, internal
minimum running times are ignored and all heat generators
switched off. Always set value higher than the value of the
hysteresis HR.
Release 2 CP
Release 2nd compresso
A value is only displayed for devices with two compressors.
Setting of the minimum external temperature from which the
second compressor can be released in heating mode. Above
the set external temperature, the second compressor remains
locked in heating mode
Release 2hg
Release additional heat generator
Setting for the external temperature from which the additional
heat generator can be released if required. Above the set
external temperature, the additional heat generators remain
locked.
Exception:
In the event of a fault and the setting fault with a 2 hg, the
additional heat generators are released independently of the
set external temperature.
Tp-defr.Air.
Temperature air defrost
Setting for the release temperature for the air defrost. Below
the set temperature, the air defrosting is locked.
IMPORTANT
Set air defrost only if device type is approved for air de-
frost.
TVth.disinf2
TDI setpoint temperature
Setting for the setpoint temperature for the thermal
disinfection in the domestic hot water preparation.
Flow 2. CP SW
Flow 2nd compressor
Domestic hot water
Setting for the flow temperature up to which domestic hot
water is prepared with the second compressor.
Optimisation of the charging time and the attainable
domestic hot water temperatures.
T-outd. max
maximum external temperature
Setting for the maximum external temperature from which
the heat pump is locked.
Additional heat generators are released as required.
T-outd. min
minimum external temperature
Setting for the minimum external temperature under which
the heat pump is locked.
Additional heat generators are released as required.
Calling up preset program
Part 1 of the controller maunual, program area “Service“, sec-
tion “Calling up preset program“.
Determining temperatures
The menu is not shown in full here.
Limit Return
Return limit
Setting the maximum return setpoint temperatures in
heating mode.
X
External temperature
Y
Return temperature
A
Heating curve-end point
B
Return limit (in the example shown: 40 °C)
Hysteresis HR
setting for the control hysteresis of the
heating regulator
Set a greater hysteresis for very reactive heating systems, and
a lower hysteresis for less reactive heating systems.
A
There will be no request for heating in this
temperature range
B
There will be a request for heating in this
temperature range
C
Neutral zone
D
Return setpoint temperature
K
Hysteresis in Kelvin
