41We reserve the right to make technical changes | 83055600dUK – Translation of the original instruction manual (HMD 2) | ait-deutschland GmbH
System setting during commissioning
NOTE
The software automatically detects the connected heat pump type. Parameters that are not relevant for the system situation or
for the heat pump type are hidden from view. For this reason, some of the parameters contained in this overview may not ap-
pear in the display of your heating and heat pump controller.
Parameter Factory setting
Adjustment during
commissioning *)
Value range (adjustable steps) Access
Program section “Cooling”
Outd. TP release 20 °C °C 15 °C – 35 °C (↕1) User
Outd. T-Dif1 5.0 K K 1.0 K – 10 K (↕0.5) User
set temperature MC1 20 °C °C
18 °C – 25 °C (↕1
integration with “Sep.tank”:
5 °C – 25 °C (↕1)
User
hysteresis cool.contr 3.0 K 1 K – 5.0 K (↕0.5) Fitter
Target return cooling 20 °C K 13 °C – 25 °C (↕0.5) User
max. outs. temp. 12 h h 0 h – 12 h (↕0.5) User
min. outs. temp. 12 h h 0 h – 12 h (↕0.5) User
max. room. temp. 12 h h 0 h – 12 h (↕0.5) User
Temperatures
Limit Return 50 °C °C 35 °C – 70 °C (↕1) Fitter
Hysteresis HC 2.0 K K 0.5 K – 6.0 K (↕0.5) Fitter
hysteres.SW 2.0 K K 1.0 K – 30.0 K (↕1) Fitter
RT incr.max 7.0 K K 1.0 K – 10.0 K (↕1) AS
Release 2 CP 5 °C °C -20 °C – 30 °C (↕1) Fitter
Release 2hg -2 °C °C -20 °C – 20 °C (↕1) Fitter
Tp-defr.Air. 7 °C °C 6 °C – 20 °C (↕1) AS
TVth.disinf2 65 °C °C 50 °C – 70 °C (↕1) User
Flow 2. CP SW 50 °C °C 10 °C – 70 °C (↕1) Fitter
T-outd. max
LWD: 35 °C
LWD-R: 40 °C
°C 20 °C – 45 °C (↕1) AS
T-outd. min -20 °C °C -20 °C – 10 °C (↕1) Fitter
T-HG max 130 °C °C 100 °C – 150 °C (↕1)
Factory
T-def.airend
LWD: 2°C
LWD-R: 6 °C
°C 2 °C – 10 °C (↕1) AS
lowering to -20 °C °C -20 °C – 10 °C (↕1) User
ow Max. 70 °C °C 35 °C – 75 °C (↕1) AS
Flow max. MC1 40 °C °C 25 °C – 75 °C User
min. AT ow max. -7 °C °C -20 °C – 5 °C (↕1) Fitter
low limit of applic. 62 °C °C 35 °C – 75 °C (↕1) AS
hysteresis cool.contr 3.0 K 1 K – 5.0 K (↕0.5) Fitter
service water max 65 °C °C 30 °C – 65 °C (↕0.5) Fitter
min.systemtemp. 15 °C °C 15 °C – 30°C (↕0.5) User
Defrost end temperature 45 °C 35 °C – 45 °C (↕1) AS
minimal ow mc 1 20 °C °C 20 °C – 40 °C (↕1) Fitter
maximum ow mc 1 45 °C °C 25 °C – 75 °C (↕1) Fitter
Hysteresis 2.CP short 4.0 K K 2 – 6 (↕1) Fitter
min. ow cooling 18 °C °C 18°C – 25 °C (↕1) Fitter
min. ow cooling 2CP 10 °C °C 7 °C – 20 °C (↕1) Fitter
*) Please enter the adjusted values. If 2 heat pumps are connected, enter both values. Mark not applicable with — .
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