Daikin EWWQ-G - 6.1.3 Unit Rapid Stop Alarms

EWWQ090G ÷ EWWQ720L - R410A - Water-cooled scroll chillers
EWLQ090G ÷ EWLQ720L - R410A - Condenser less
EWHQ100G ÷ EWHQ400G - R410A - Heat pump scroll chillers
EWAQ- - R410A - Air-cooled scroll chillers
EWAQ- - R410A - Air-cooled scroll chillers
EWYQ- - R410A - Air-cooled scroll heat pumps
Air and Water cooled scroll chillers & heat pump
Operation
Manual
EWWQ - EWLQ - EWHQ
EWAQ - EWYQ
Air or Water cooled scroll chiller &
heat pump
D-EOMHW00107-15EN
Operation Manual
31
Setpoint/Sub-
Menu
Default
Range
Description
Master Priority=
1
1…4
Start Up / Shut Down priority of the chiller Master
Priority = 1  highest priority
Priority = 4  lowest priority
Slave 1 Priority=
1
1…4
Start Up / Shut Down priority of the chiller Slave 1
Priority = 1  highest priority
Priority = 4  lowest priority
Slave 2 Priority=
1
1…4
Start Up / Shut Down priority of the chiller Slave 2.
Priority = 1  highest priority
Priority = 4  lowest priority
This menu is visible only if the parameter M/S Num Of Unit has been configured at
least with value 3
Slave 3 Priority=
1
1…4
Start Up / Shut Down priority of the chiller Slave 3.
Priority = 1  highest priority
Priority = 4  lowest priority
This menu is visible only if the parameter M/S Num Of Unit has been configured at
least with value 4
Master Enable=
Enable
Enable,
Disable
Parameter is used to disable the Master Chiller
4.2.5.3 Thermostat control
The parameters changeable with this menu, available only in the unit configured as Master, are
related to the thermoregulation of all Master Slave system.
Setpoint/Sub-
Menu
Default
Range
Description
Start Up DT=
2.7°C
0.0…5.0°C
Offset respect the active setpoint for the unit startup.
Start Up DT=
1.5°C
0.0…5.0°C
Offset respect the active setpoint for the unit shutdown.
Threshold=
60%
30%...100%
Threshold of load that have to reach all units running before allow the startup of a
new chiller
Stage Up Time=
5min
0min…20min
Minimum time between the start of two chillers
Stage Dn Time=
5min
0min…20min
Minim time between the stop of two chillers
4.2.5.4 Data
In this menu, available only in the unit configured as Master, are collected all main data related to
the Master Slave function.
Setpoint/Sub-
Menu
Default
Range
Description
Next On=
-
-,Master, Slave 1, Slave 2,
Slave 4
Display next chiller that will be starts
Next Off=
-
-,Master, Slave 1, Slave 2,
Slave 4
Display next chiller that will be stopped
Standby Chiller=
-
-,Master, Slave 1, Slave 2,
Slave 4
Display the actual standby chiller
Switch Date/Time
-
dd/mm/yyyy
hh:mm:ss
Display the day and the time in the day when will be performed the
rotation of the sandby chiller
Master State=
-
Off, On
Display the actual state of the Master
Slave 1=
-
Off, On
Display the actual state of the Slave 1
Slave 2=
-
Off, On
Display the actual state of the Slave 2
Slave 3=
-
Off, On
Display the actual state of the Slave 3
Master Load=
-
0%...100%
Display the actual load of the Master
Slave 1 Load=
-
0%...100%
Display the actual load of the Slave 1
Slave 2 Load=
-
0%...100%
Display the actual load of the Slave 2
Slave 3 Load=
-
0%...100%
Display the actual load of the Slave 3
Master ELWT=
-
-
Display the Master ELWT
Slave 1 EWLT=
-
-
Display the Slave1 ELWT
Slave 2 EWLT=
-
-
Display the Slave2 ELWT
Slave 3 EWLT=
-
-
Display the Slave3 ELWT