Emerson X-web300 Manual de usuario Pagina 9

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1592015300 User manual iCHILL 200 L GB r1.3 09/09/2005
Low evaporating pressure
Maintenance messages
Compressors
Evaporator pumps
Condenser pumps
Auxiliary relays
Two configurable relay outputs not depending from the control algorithm can be managed through NTC, PTC or pressure
probes.
Weekly Energy saving
Three different time bands per day (only with RTC onboard)
From digital input
Weekly ON/OFF:
Three different time bands per day (only with RTC onboard)
Dynamic setpoint:
Determined by analogue NTC input or 4÷20mA current input.
Change over :
Automatic chiller or heat pump functioning depending from NTC analogue input.
Remote OFF:
From configurable digital input.
Remote change over:
From configurable digital input.
Hot start :
Air / air unit
Defrost management:
Combined control with temperature and pressure
Forced defrost with low temperature of external air
From configurable digital input
Manual from keyboard
Boiler:
For electrical integration heating or anti-freeze heaters
Two proportional outputs for condensing fan speed control (inverter or phase cut) with configurable signal:
PWM
0÷10Volt
4÷20mA
Four proportional control outputs 0÷10V or ON/OFF
To control the dumper in free cooling or recovery
To control an external relay
Complete alarm management
Internal Data logger up to 100 events
Supervisor / tele assistance/ monitoring
TTL output for XJ485 interface (Mod #Bus protocol) for XWEB300 / XWEB3000 Dixell monitoring system for local and remote
control
Up to 2 remote terminals with display read-out customizable
With NTC ambient temperature probe
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