Daikin EUWA080BZ6Y [8/47] Applied systems chillers 8

Daikin EUWA080BZ6Y [8/47] Applied systems chillers 8
Chillers • R-407C • EUWA-BZ6Y
Applied Systems • Chillers
8
1
2
Main switch, phase-sequence relay, transformer (400/230V), compressor start-up protective devices with fuse and heat overload cut-out for the fans, control voltage
fuse, designated terminal strip for external connections.
PCO
2
digital microprocessor for controlling the cold water flow temperature using PID control behaviour without continuous control deviation with the following
sensors:
- Temperature sensor in the cold water flow and return
- Temperature sensor for evaporation and condensation temperature
- Low- and high-pressure switch
The controller has the following functions to prevent safety shut-downs:
Load limiting controller for low evaporation and high condensation temperature to prevent overloading the compressor motor and high- and low-pressure faults.
Self-adjusting start-up frequency limiting with automated equalisation of compressor hours and operating hours.
All of the operating and status data can be read over the 16 character LC display and the set points can be set. In particular, these are:
- Cold water set point
- Cold water outlet temperature
- Air temperature
- Operating hours and start of each compressor
- The last 200 error messages complete with date and time
- Evaporation and condensation temperature for each refrigerant circuit
As standard, the machine has communication facilities with higher level master systems in which case the following contacts are executed or can be executed:
Inputs:
- Sliding movement of set points
- Remote On/Off: circuit 1 / circuit 2
- External alarm acknowledgement
Outputs:
- Collection fault message circuit 1
- Collection fault message circuit 2
As an option this chiller can be fitted with an interface for integrating it into a Building Management System (BMS), which supports the LonTalkTM protocol.

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