Daikin EWWP065KAW1M - Page 22

Operation manual
21
EWWP045~065KAW1M + ECB1~3MUW
Packaged water-cooled water chillers
4PW30041-1A
32~72HP ANNEX I
Thermostat parameters
The default value and the upper and lower limits of the thermostat parameters are listed in the table below.
Cooling: Inlet water temperature control of evaporator Heating: Inlet water temperature control of condenser
The figures below show the thermostat diagram in case of inlet water temperature control.
52~72Hp
32~48Hp
■ 2 step thermostat control
52~72Hp
32~48Hp
■ 2 step thermostat control
■ 4 step thermostat control (default 32~48Hp) ■ 4 step thermostat control (default 32~48Hp)
■ 6 step thermostat control (default 52~72Hp) ■ 6 step thermostat control (default 52~72Hp)
0
1
2
ab
Stepnumber
Setpoint
Temperature
0
1
2
ab
Stepnumber
Setpoint
Temperature
0
1
4
3
2
ab
Stepnumber
Setpoint
Temperature
0
1
4
3
2
ab
Stepnumber
Setpoint
Temperature
0
1
6
5
4
3
2
ab
Stepnumber
Setpoint
Temperature
0
1
6
5
4
3
2
ab
Stepnumber
Setpoint
Temperature
INLET CONTROL Default value Lower limit Upper limit
Steplength - a
(K)
1.5 0.4 2.0
Step difference - b
(K)
0.5 0.2 0.8
Load-up time
(sec)
180 15 300
Load-down time
(sec)
20 15 300
Setpoint Cooling
(°C)
12.0 8.0 23.0
Setpoint Heating
(°C)
30.0 15.0 50.0
NOTE
The thermostat parameters mentioned above only apply to standard units.