Daikin EWWQ-AJYNN Service Manual page 42

The Digital Controller
1
2
3
4
5
2–36
Enable evaporator flow alarm
Enable condenser flow alarm
Evaporator flow alarm delay (if
enabled)
High discharge temperature setpoint
High pressure alarm setpoint
Low pressure alarm setpoint
Delay low pressure alarm
■
Ratio alarm setpoint
■ Min Load
■ Max Load
Delay pressure Ratio alarm
YES (MASTER); NO (SLAVES)
YES (MASTER); NO (SLAVES) Solo WHS
■
STARTUP DELAY = 20 s
■ OPERATING DELAY = 5 s
■
SETPOINT = 120 °C
■ DIFFERENTIAL = 5 °C
■ SETPOINT = 20.5 bar
■ DIFFERENTIAL = 05.0 bar
Transducers high
pressure alarm
Setpoint
Diff.
■ SETPOINT = 01.0 bar
■ DIFFERENTIAL = 00.5 bar
Transducers low
pressure alarm
Setpoint
Diff.
■ STARTUP DELAY = 120 s
■
OPERATING DELAY = 60 s
Low pressure alarm
delays
Startup delay
Run delay
1.4
1.8
Pressure ratio alarm
Min Load Setp
Max Load Setp
■
STARTUP DELAY = 180 s
■ OPERATING DELAY = 90 s
Pressure ratio alarm
Startup delay
Run delay
ESIE07-05
20.5 bar
05.0 bar
-01.0 bar
00.5 bar
120 s
060 s
1.4
1.8
180 s
090 s
Part 2 – Functional Description