Evaporator Approach Calculation; Evaporator Liquid Temperature Calculation; Condenser Flushing; Open Protocol Support - Carrier SmartVu Control Manual

If "Option 2" -> " Marine Cont. Pwr Req" is enabled, the power request signal will remain active after the
compressor is switched on. If permission to start feedback is deactivated while compressor is running,
an alarm shutdown will be triggered.

5.35.3. Evaporator Approach Calculation

If "Option Configuration" -> "Evap App Calc Selection" is set to Sat Temp, evaporator approach will be
caclulated from evaporator leaving water temperature and evaporator saturated temperature.
If this option is set to Ref Temp, evaporator approach will be caclulated from evaporator leaving water
temperature and evaporator refrigerant temperature.

5.35.4. Evaporator Liquid Temperature Calculation

If "Option Configuration" -> "Evap Liquid Temp Opt" is set to Enable, the controller will read evaporator
liquid temperature from evaporator temperature transducer.
If this option is set to Dsable, evaporator liquid temperature will be calculated from evaporator pressure
transducer.

5.35.5. Condenser Flushing

To prevent the chiller being corroded after left unused for a long time, it is suggested to flush the
condenser once every week.
If "Option Configuration" -> "Condenser Flush Alert" is enabled, when condenser pump has been not
running f or 7 days, alert 166 will be triggered to remind user to flush condenser. Then user can activate
condenser flush by enabling "General Parameters" -> "Start Condenser Flush". Alert 166 will be reset
automatically after condenser flush is activated.
Condenser Flush will last for 2 hours and then automatically end. During Condenser Flush, the chiller will
take these actions:
Switch on the condenser water pump
Open head pressure valve to maximum opening position
Display Condenser Flush mode on the homepage.
Condenser Flush mode will only be activated when chiller is not running. If the chiller is running,
Condenser Flush start request will be ignored. When free cooling is in progress, if chiller is commanded
to start, condenser flush will automatically end and chiller will normally start up.
5.36.

Open Protocol Support

Modbus/TCP on Carrier® SmartVu
Step 1: Configuration Menu ->Network Configuration
Step 2: Enable the Modbus/TCP, ethernet port 0 will be configured as Modbus/TCP or BACnet/IP
SRDC-UG-2-14-000
19 Series Carrier®
–
TM
SmartVu
Controls IOM
TM
controller can be configured with the following steps:
REVISION DATE
2.3 Dec 4, 2020
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