Daikin Clima-Flex CLIC Series, Installation, Operation And Maintenance Manual

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Target Pressure Setting: [Coding Priority 1]
• The value is determined based on A3S simulation optimizing fan power consumption vs compressor power. We found discharge
pressure corresponding to 90F sat temperature to be optimum.
Ptarget = Amb(70-95°F) + dT psig (condensing)
• Minimum Ptarget = 70°F
• Maximum Ptarget = 121.12 °F
dT = 0.0024(Comp Speed[0-6000RPM]) + 11.83
Deadband Control[Coding Priority 1]:
Deadband parameter is set by the User: Param_Db.
Actual Deadband values: ±Db = Ptarget ± Param_Db
Deadband Mode enabled IF: -Db < P_Disc < +Db
What it does:
Deadband mode holds the value from when the control variable (P_disc) enters the Deadband range. When exiting either side of the
deadband the PI controller is given the held value as a starting point. Normal PI control operations resume.
How Fans Respond to PI output: [Coding Priority 1] Fan mode will be switched on two conditions:
If Mode = 2 Fan, 2 fans run from 5%< PI output < 5%, switch to 1 Fan.
If Mode = 1 Fan, 1 fan runs from 2.5%< PI output 25%, switch to 2 Fans.
Initial Fan speed with a hold for X seconds
Setting the initial speed: [Coding Priority 2]:
Parameter for keeping the starting speed held for X Seconds.
Mother /Son Logic