V-Tac VT-12341 handleiding
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2.2.4 Control Logic
The control logic of the EMW30D and EMW50C chillers is shown in Table 2-7.
Table 2-7 Control logic
Item
Control Logic
Description
Refrigeration
Refrigeration demand ≥
50%: the refrigeration is
started.
Refrigeration demand (%) = (actual control
temperature - refrigeration set point) / refrigeration sensitivity * 100%
When the refrigeration set point is 18°C and the refrigeration sensitivity is
3°C, the refrigeration start point is 19.5°C (18°C+3°C *50%=19.5°C), and the
refrigeration stop point is 16.5°C
(18°C-3°C*50%=16.5°C).
When the outlet coolant temperature is used as the actual control
temperature:
l When the outlet coolant temperature is ≥ 19.5°C, the chiller will start
cooling.
l When the outlet coolant temperature is ≤ 16.5°C, the chiller stops cooling.
Refrigeration demand ≤
-50%: the refrigeration is
stopped.
Heating
Heating demand ≥ 100%:
the heating is started.
Heating demand (%) = (heating set point - actual control temperature) /
heating sensitivity * 100% When the heating set point is 15°C and the
heating sensitivity is 3°C, the heating start point is 12°C (15°C-3°C*100%=12°
C), and the heating
stop point is 15°C (15°-3°C*0%=15°C).
When the outlet coolant temperature is used as the actual control
temperature:
l When the outlet coolant temperature is ≤ 12°C, the chiller will turn on the
electrical heaters.
l When the outlet coolant temperature is ≥ 15°C, the chiller will stop the
electrical heaters.
Heating demand ≤ 0%, the
heating is stopped.
Refrigeration/heating set point and refrigeration/heating sensitivity can be configured according to
actual planning.
For detailed parameters and operation procedures, please scan the QR code on the device to
download the user manual.
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Productinformatie
| Merk | V-Tac |
| Model | VT-12341 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 27251 MB |
