Daikin EWYD360BZSL handleiding
Handleiding
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Table 4 - Compressors shutdown scheme in Ice mode
Evap Lvg Temp Compressors status
< SetP
> SetP – SDT/n
All compressors allowed to run
< SetP– SDT/n
> SetP – 2*SDT/n
(n-1) compressors allowed to run
< SetP – 2*SDT/n
> SetP – 3*SDT/n
(n-2) compressors allowed to run
< SetP – 3*SDT/n
> SetP – 4*SDT/n
(n-3) compressors allowed to run
> SetP – 4*SDT/n No compressor allowed to run
6.6. Compressors timing
Compressors operation will meet four timer requirements:
•
Minimum time between a same compressor starts (start to start timer): it is the minimum time
between two starts of the same compressor
•
Minimum time between different compressor starts : it is the minimum time between two starts
of two different compressors
•
Minimum time compressor on (start to stop timer): it is the minimum time the compressor may
run; the compressor cannot be stopped (unless an alarm occurs) if this timer is not expired
•
Minimum time compressor off (stop to start timer): it is the minimum time the compressor may
be stopped; the compressor cannot be start if this timer is not expired
The minimum time compressor off (stop to start timer) will has two different settings; one
applicable to cooling, cooling/glycol and heating mode and the other one applicable in ice mode.
6.7. Compressors protection
To protect compressor against loss of lubrication, the compressor pressure ratio is
continuously checked; a minimum value is set for compressor minimum and maximum load; for
intermediate compressor loads a linear interpolation are executed.
The low pressure ratio alarm will occur if pressure ratio remains lower than the minimum
value at rated compressor capacity while a timer expiration.
At the startup the compressor is completely downloaded and its loading will not be enabled
up to the pressure ratio exceeds a set value (default equal to 2).
6.8. Compressors startup procedure
Before to start compressors the unloading solenoid valve is energized up to a timer is
expired (default 60 sec).
At compressor startup the control will executed a series of prepurge procedure to evacuate
evaporator; the prepurge procedure will depend on the expansion valve type.
Prepurge procedure will not be executed if the evaporating pressure is below the low
pressure alarm setpoint (vacuum conditions inside the evaporator).
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Productinformatie
| Merk | Daikin |
| Model | EWYD360BZSL |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 10110 MB |
