Daikin EWWQ-G - Pumps; Master;Slave

EWWQ090G ÷ EWWQ720L - R410A - Water-cooled scroll chillers
EWLQ090G ÷ EWLQ720L - R410A - Condenser less
EWHQ100G ÷ EWHQ400G - R410A - Heat pump scroll chillers
EWAQ-G 075 - 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
Operation Manual
30
EWWQ - EWLQ - EWHQ
EWAQ - EWYQ
Air or Water cooled scroll chiller &
heat pump
D-EOMHW00107-15EN
Min Output
0%
0…50%
Minimum condensing control output
4.2.4 Pumps
This page resumes all setting for the water pumps management. For more details about this
parameters and the pump control logic refer to section 0.
Setpoint/Sub-Menu
Default
Range
Description
Evap Pmp Ctrl=
#1 Only
#1 Only
#2 Only
Auto
#1 Primary
#2 Primary
Set number of evaporator pumps operational and their priority
Cond Pmp Ctrl=
#1 Only
#1 Only
#2 Only
Auto
#1 Primary
#2 Primary
Set number of condenser pumps operational and their priority (W/C only)
Recirc Tm=
30s
15…300s
Recirculation water timer
Evap Pmp 1 Hrs=
0h
Running Hours Evaporator Pump 1 (if present)
Evap Pmp 2 Hrs=
0h
Running Hours Evaporator Pump 2 (if present)
Cond Pmp 1 Hrs
0h
Running Hours Condenser Pump 1 (if present W/C only)
Cond Pmp 2 Hrs=
0h
Running Hours Condenser Pump 2 (if present W/C only)
4.2.5 Master/Slave
This page resumes all submenus for the configuration and monitoring of the Master Slave function.
For more details refer to section 5.10
Setpoint/Sub-Menu
Default
Range
Description
Standby Chiller

-
Submenu Standby Chiller
Options

-
Submenu Options
Thermostat Ctrl

-
Submenu Thermostat Ctrl
Data

-
Submenu Data
Timers

-
Submenu Timers
Disconnect Unit
No
No,Yes
Parameter to disconnect the unit by the Master Slave network.
When this parameter is set to Yes the unit follows all local settings.
4.2.5.1 Standby Chiller
Through this menu page is possible to define all settings for the Standby chiller. Refer to the
section 5.10.4.2 for more details.
Setpoint/Sub-
Menu
Default
Range
Description
Standby Chiller=
No
No, Auto, Master, Slave 1, Slave
2, Slave 3
Define the standby chiller
Rotation Type=
Time
Time, Sequence
Define the rotation type of the standby chiller if the previous
parameter Standby Chiller is set as Auto
Interval Time=
7 Days
1…365
Define the interval time (expressed in day) for the rotation of the
standby chiller
Switch Time=
00:00:00
00:00:00…23:59:59
Define the time within the day when will be performed the switch
of the standby chiller
Tmp Cmp=
No
No,Yes
Enabling of the Temperature Compensation function through the
standby chiller.
Tmp Comp Time=
120 min
0…600
Time constant for the enabling of the standby chiller used for the
Temperature Compensation
Standby Reset=
Off
Off, Reset
Parameter to reset the counter of the standby chiller rotation
4.2.5.2 Options
Through this menu, available only in the unit configured as Master, is possible to define some
parameters for the global behavior of the Master Slave Network. Refer to the section 5.10.4 for
more details