Daikin DWSC - Vintage C, Operating Manual

Page: 15 / 39

D-EOMWC00803-26_01EN - 15/39
Setpoint/Sub-
Menu Default Range Description
Sl1 LWT= - - Display the Slave1 leaving water temperature
Sl2 LWT= - - Display the Slave2 leaving water temperature
Sl3 LWT= - - Display the Slave3 leaving water temperature
Mst EWT= - - Display the Master entering water temperature
Sl1 EWT= - - Display the Slave1 entering water temperature
Sl2 EWT= - - Display the Slave2 entering water temperature
Sl3 EWT= - - Display the Slave3 entering water temperature
Mst Hrs= - - Master running hours
Sl1 Hrs= - - Slave 1 running hours
Sl2 Hrs= - - Slave 2 running hours
Sl3 Hrs= - - Slave 3 running hours
Mst Starts= - - Master number of starts
Sl1 Starts= - - Slave 1 number of starts
Sl2 Starts= - - Slave 2 number of starts
Sl3 Starts= - - Slave 3 number of starts
4.2.6.2 Options
This menu allows to set main parameter of Master Slave function
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 This parameter allows to enable or disable locally the
Master Chiller
Control Mode= Complete Partial
Complete Parameter to select the Partial or Complete control mode
Partial
→
On/Off control
Complete
→
On/Off + Capacity control
Control Tmp= Leaving Entering
Leaving Parameter to define the controlled temperature
Entering - Thermoregulations is based on the Average
Entering Water Temperature (AEWT)
Leaving - Thermoregulation is based on the Common
Leaving Water Temperature (CLWT)
4.2.6.3 Thermostat Ctrl
This page resumes all thermostat control parameter of Master Slave.
Setpoint/Sub-
Menu Default Range Description
Stage Up DT= 2.7°C
0.5…5.0°C
Offset respect the active setpoint for the unit startup.
Stage Dn DT = 1.5°C
0.5…5.0°C
Offset respect the active setpoint for the unit shutdown.
Dead Band = 0.2 0.1 - Min (Stage UP DT, Stage Dn
DT) Dead Band respect the active setpoint within which the
load/unload command are no longer generated.
Threshold= 60% 30...100% Threshold of load that have to reach all units running before
start 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
Min Evap Tmp= 4.0 -
18…30°C
Minimum Evaporator leaving water temperature
4.2.6.4 Timers
Setpoint/Sub-
Menu Default Range Description
Cmp Cycle T Left 0s
…
Current remaining time for compressor to startup
Cmp Cycle T Clr Off
Off…On
Clear compressor cycle timer
Stage Up Dly Rem - - Current delay for new chiller stage up
Stage Dn Dly Rem - - Current delay for new chiller stage down