Airwell YUDE024, Руководство по обслуживанию

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CONTROL SYSTEM
SM YUDE 2-A.1 GB 11-7
Compressor will stop when ICT <= ICT
defrost
for continuous 3 mins , it can resume running
automatically when ICT >=10.
Model ICT
defrost
Duct -2
Floor ceiling -4
Cassette -5
11.8.2 High Pressure Protection of Compressor by high pressure switch
When high pressure protection is detected for 3 seconds continuously, the high pressure switch is
4.2Mpa, the unit will stop and report the fault, it can not resume running automatically and display
malfunction, it can resume by pressing ON/OFF.
11.8.3 Compressor over Heating Protection
If the discharge temperature rises above a certain level, the operating frequency upper limit is set
to keep this temperature from going up further.
Compressor will stop when CTT reaches 130.
The unit can only
resume running
until the compressor has stopped for 3 minutes and the
CTT is lower than 90
℃
If the unit stops as such protection for 3 times, it can not resume running automatically and display
malfunction, it can resume by pressing ON/OFF.
11.8.4 Compressor over Current Protection
Detect an input current by the CT during the compressor is running, and set the frequency upper
limit from such input current. In case of heat pump model, this control is the upper limit control
function of the frequency which takes priority of the lower limit of four way valve activating
compensation.
Model Current(A)
YUDE024 45
YUDE030 45
YUDE036 38
YUDE036T 11.5
11.8.5 Outdoor Coil Deicing Protection
This protection is for Heat Pump Only
This protection is carried out by the cooling cycle (reverse cycle). The defrosting time or outdoor
heat exchanger temperature must be more than its setting values when finishing the deicing
protection.
In the deicing protection, IFAN is forced OFF.
11.8.5.1 Deicing Starting Conditions
The starting conditions must be made with the outdoor air temperature (OAT) and outdoor coil
temperature (OCT). Under the conditions that the system is in heating operation, after the time for
defrosting is judged to be satisfied, if the temperature for deicing is satisfied after detections for
continuous 3minutes, the deicing operation will start.