Daikin EWYQ180DAYN [299/524] Ff low amb down 2

ESIE06-05 The Digital Controller For Multiscroll Chillers

Part 2 – Functional Description 2–73

EEV Feed Forward

Control

This screen allows modification of the EEV FF control in Heating mode.

Settings:

EEV Feed Forward

Low Ambient

Control

This screen allows modification of the EEV FF control in cooling heating with low ambient

temperatures.

Settings:

FF CONTROL UP : If the compressor load goes up, the controller will change the EEV

opening.

Output pulses= Current pulses x “FF CONTROL UP”

FF CONTROL DOWN : If the compressor load goes down, the controller will change the

EEV opening.

Output pulses= Current pulses / “FF CONTROL DOWN”

FF NORMAL UP :1.5

FF NORMAL DOWN:1.7

HEAT EEV CONTROL

FF LOW AMB. UP : If the compressor load goes up AND the ambient temperature is

below the HEAT AMB. CONST setpoint, the controller will change

the EEV opening.

Output pulses= Current pulses x “FF LOW AMB. UP”

FF LOW AMB. DOWN : If the compressor load goes down AND the ambient temperature

is below the HEAT AMB. CONST setpoint, the controller will

change the EEV opening.

Output pulses= Current pulses / “FF LOW AMB. DOWN”

FF LOW AMB.UP :2.2

FF LOW AMB.DOWN:2.2

HEAT EEV CONTROL