Daikin EWWQ-KC, Руководство по эксплуатации

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D-EOMHP01501-22_00EN 15/29
3.9.1.2. Leaving Water Temperature Control
In LWT Control, compressor starts/stops depend on Leaving Water Temperature value with respect to the thermostatic control
parameters.
Depending on setting of StartupDT, thermoregulation control could lead to:
1. More accurate Thermostatic control
→
Frequent compressor starts/stops. (Default Configuration)
Note: UC always ensures amount of compressor start and stop does not exceed safety limit
2. Reduced amount of compressor Start/Stop
→
Less accurate Thermostatic Control.
To reduce amount of compressor start/stop, customer can modify the StartupDT parameter according to following
indication:
𝑆𝑡𝑎𝑟𝑡𝑈𝑝𝐷𝑇 >
𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐷𝑇
∗
𝑁𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑈𝑛𝑖𝑡 𝐶𝑜𝑚𝑝𝑟𝑒𝑠𝑠𝑜𝑟𝑠
Parameter Description/Value
Control Temperature
Leaving Water Temperature
SP
Based on Leaving Water Temperature
Startup DT
2.7 dK (default value as described in previous chapter)
Shutdown DT
1.7 dK (default value as described in previous chapter)
Nominal DT
Depends on Unit Mode, set it in 15.14, 15.15 parameters (Nominal Evap DT, Nominal Cond DT)