EWWQ090G ÷ EWWQ720L - R410a - Water-cooled scroll chillers
EWLQ090G ÷ EWLQ720L - R410a - Condenser less
EWHQ100G ÷ EWHQ400G - R410a - Heat pump scroll chillers
Water cooled scroll chillers & heat pump
Operation
Manual
Operation Manual
24
EWWQ - EWLQ - EWHQ
Water colled scroll chiller &heat pump
D-EOMWC01203-15EN
4.2 View/Set Unit
Setpoint/Sub-Menu
Default
Range
Description
Thermostat Ctrl
-
Submenu Thermoregulation control parameter
Network Ctrl
-
Submenu Network Control
Unit Cond Ctrl
-
Submenu Unit Condensing Control
Pumps
-
Submenu Pumps control and data
Date/Time
-
Submenu Date, Time and Quiet Night mode schedule
Power Conservation
-
Submenu Unit Limiting functions
Modbus Setup
-
Submenu Setup of Modbus communication
Bacnet IP Setup
-
Submenu Setup of Bacnet IP communication
Bacnet MSTP Setup
-
Submenu Setup of Bacnet MSTP communication
LON Setup
-
Submenu Setup of LON communication
Ctrlr IP Setup
-
Submenu IP settings for on-board web-server
Cloud Connection
-
Submenu Cloud Connection
4.2.1 Thermostat Ctrl
This page resumes all thermoregulation parameters. For more details about this parameters and
the thermoregulation logic see section 5.1.4.
Setpoint/Sub-Menu
Default
Range
Description
Start Up DT=
2.7°C
0.0…5.0°C
Offset respect the active setpoint for unit start.
Shut Dn DT=
1.5°C
0.0…5.0°C
Offset respect the active setpoint for unit shutdown
Stage Up DT=
1.0°C
0.0…Start Up DT°C
Offset respect the active setpoint for unit stage up
Stage Dn DT=
1.0°C
0.0…Shut Dn DT°C
Offset respect the active setpoint for unit stage down
Max Pulldn=
1.7°C/min
0.1
…2.7°C/min
Max pull down rate of controlled water temperature
Max PullUp=
1.7°C/min
0.1
…2.7°C/min
Max pull up rate of controlled water temperature
Stg Up Delay=
2min
0…8min
Compressor start inter-stage delay
Stg Dn Delay=
30sec
20…60sec
Compressor stop inter-stage delay
Strt Strt Dly=
10min
10…60min
Compressor Start to Start delay
Stop Strt Dly=
3min
3…20min
Compressor Stop to Start delay
Ice Cycle Dly=
12h
1…23h
Ice cycle delay
4.2.2 Network Ctrl
This page resumes all settings (unit on/off, unit mode, temperature setpoint, capacity limit) set by
BMS when the unit is controlled from network.
Setpoint/Sub-
Menu
Default
Range
Description
Control Source=
Local
Local, Network
Determines whether on/off, cooling/heating/ice setpoint, operation mode,
capacity limit, should be commanded by local (HMI) settings or from BMS
Netwrk En SP=
-
-
Unit enable from BMS
Netwrk Mode SP=
-
-
Unit mode from BMS
Netwrk Cool SP=
-
-
Cooling setpoint from BMS
Netwrk Heat SP=
-
-
Heating setpoint from BMS
Netwrk Cap Lim=
-
-
Capacity limitation from BMS
Netwrk Ice SP=
-
-
Ice setpoint from BMS
4.2.3 Unit Cond Ctrl
This page resumes all settings for the unit condensing control. For more details about this
parameters and the unit condensing control logic see section 5.4.2
Setpoint/Sub-Menu
Default
Range
Description
Cnd SP Clg=
35°C
20…55°C
Condenser setpoint for cooling mode
Cnd SP Htg=
10°C
-
10…20°C Condenser setpoint for heating mode
Cnd Act Sp=
-
-
Active condensing temperature setpoint
Cnd Ctrl Tmp=
-
-
Condensing control temperature
Output=
-
-
Actual condensing control output
Max Output=
100%
50…100% Maximum condensing control output
Min Output
0%
0…50%
Minimum condensing control output