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Subject to technical amendments without prior notice | 83055400iUK – 2.1 | ait-deutschland GmbH
Thermal
Domestic hot water preparation is
initiated or terminated via a thermostat
on the domestic hot water tank.
No temperatures can be set in the
controller
NOTE
Connect domestic hot water thermostat on the same ter-
minals as the domestic hot water sensor (low voltage). The
domestic hot water thermostat must be suitable for low
voltage (floating contact).
Thermostat closed (= signal On) = Domestic hot water re-
quirement.
Service water 2
Domestic Hot Water 2
CP
Setting CP means circulation pump.
For the corresponding settings, please refer to the description
of the circulation pump in the operating manual part 1, pro-
gram section “Domestic hot water”, section “Circulation“.
h.wCP
Setting h.w.CP means that the CP
output will be active during domestic
hot water preparation and switch off
30 seconds after domestic hot water
preparation is complete.
NOTE
If the “service water 2” menu field is not visible, you must
make this setting in the “FlexConfig” menu under “OUT 2”.
page 31, “FlexConfig“
Service water 3
Domestic Hot Water 3
with CP
Additional circulation pump runs
during domestic hot water preparation
wo. CP
Additional circulation pump does
not run during domestic hot water
preparation
Service water 4
Domestic Hot Water 4
set value
Heat pump attempts to reach the set
setpoint value of the domestic hot
water temperature
Service water 5
Domestic Hot Water 5
with HSP
Heating circulation pump runs always
during domestic hot water preparation
wo HSP
Heating circulation pump does not run
during domestic hot water preparation
par. HUP
Heating circulation pump runs parallel
to domestic hot water preparation
if a heating demand exists. If the
heating limit is exceeded, the heating
circulation pump switches off.
SW+HP max
Maximum running time domestic hot
water prepa Heat pump
After the set time has expired, the 2nd heat generator in the
domestic hot water preparation energises, but only if this has
been released previously in the heating mode!
Defr cycle max
Defrost cycle time, maximum time
between two defrost processes
You can find the time to be set for the relevant L/W device in
the operating manual. If you do not find any data there, the
following applies:
page 45, “Overview: Defrost cycle, Air defrost, Flow Max“
Mixing circ 1
Mixing circle 1
Setting the functioning of the mixer control
charge
Do
not set
for output controlled
heatpumps.
Mixer serves as charger mixer, possibly
for a boiler
A Boiler
B
Heat pump
TB1 sensor flow
discharge
Mixer serves as a control mixer,
possibly for floor heating
TB1 sensor flow (mandatory)
cool
Activation of the cooling function
If a mixer is present, it then serves as a
control mixer for the cooling function
heat+cool
Activation of the cooling function
(Setting only possible with S/W
and reversible L/W or with parallel
connection only with the master heat
pump)
If a mixer is present, it then serves as
a control mixer for the heating and
cooling function
no
Mixer without function
NOTE
Cooling is controlled via
TB1
sensor (via TVL sensor with
bridged TB1 contact) for
integration of “Return”
or via
TRLext
sensor for
integration of “Sep.tank”
.
Error Error
no 2hg
in the event of a fault in the heat pump,
connected ZWE are only energised
if the return temperature < 15 °C
(antifreeze); (only heating)
Heating
DHW
Domestic hot water
with 2hg
in the event of a fault in the heat
pump, connected ZWE are energised
according to requirements (HW +
DHW
)
Service water 1
Domestic Hot Water 1
Sensor
Domestic hot water preparation is
initiated or terminated via a sensor
with hysteresis (factory setting: 2K) in
the domestic hot water tank.
