Leaving Water Temperature Control - Daikin EWWQ-KC Operating Manual

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:
More accurate Thermostatic control → Frequent compressor starts/stops. (Default Configuration)
1.
Note: UC always ensures amount of compressor start and stop does not exceed safety limit
Parameter
Control Temperature
SP
Startup DT
Shutdown DT
Nominal DT
Reduced amount of compressor Start/Stop → Less accurate Thermostatic Control.
2.
To reduce amount of compressor start/stop, customer can modify the StartupDT parameter according to following
indication:
Description/Value
Leaving Water Temperature
Based on Leaving Water Temperature
2.7 dK (default value as described in previous chapter)
1.7 dK (default value as described in previous chapter)
Depends on Unit Mode, set it in 15.14, 15.15 parameters (Nominal Evap DT, Nominal Cond DT)
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