Carel MuChiller UCHBD00001130, Руководство пользователя

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User Code Description Def Min Max UOM
S C017 Max high pressure threshold (HP) 65.0 0.0 999.9 °C
S S029 Source fan in heating: set point 10.0 0.0 99.9 °C
S S035 Source fan: differential in heating 5.0 0.0 99.9 K
S S036 Modulating source fan: min speed value 20.0 0.0 100.0 %
S S037 Modulating source fan: max speed value 80.0 0.0 100.0 %
The control diagram is shown below:
Fig.5.r
Key
Max speed Modulating source fan: max speed value
Min speed Modulating source fan: min speed value
SP Control set point
DT Control differential
Tc max Maximum condensing temp.
Te Evaporation temperature
In the graph, some offsets are expressed with a numerical value, indicating that they are not modifiable
on the display but rather are fixed parameters. The current calculated set point value is displayed on the
dashboard.
5.13.4 "Low noise” function
This function reduces the noise emitted by modulating fans by increasing the set point at night.
User Code Description Def Min Max UOM
S S020
Enable noise reduction
0/1=No/Yes
0 0 1 -
S S021 Noise reduction time band: start hours 22 0 23 h
S S022 Noise reduction time band: start minutes 30 0 59 min
S S023 Noise reduction time band: end hours 8 0 23 h
S S024 Noise reduction time band: end minutes 30 0 59 min
S S025 Source fan: noise reduction set point 45.0 0.0 999.9 °C
5.13.5 Fan anti-blocking function
For systems intended to operate in cold climates, μChiller modulates fan speed so as to prevent the unit
from shutting down due to frost formation. The function is activated when the outdoor temperature falls
below a threshold, and, instead of turning off the fans, keeps then on at a minimum speed. If the outside
temperature is reached when the fans are off, these are activated at start-up speed for a certain time, and
then switch to the minimum speed.
User Code Description Def Min Max UOM
S S016 Source fan: cold climate temperature threshold -0.5 -999.9 999.9 °C
S S017 Source fan: min cold climate speed 10.0 0.0 100.0 %
S S018 Source fan: cold climate speed at start-up 50.0 0.0 100.0 %
S S019 Source fan: cold climate speed at start-up time 5 0 300 s
ENG
µC0300053EN rel. 1.0 – 23.07.2018
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