VARIABLE-SPEED WATER-COOLED LIQUID CHILLERS 30XW-V 580-1710
Touch Pilot control
Remote management (standard)
Units with Touch Pilot control can be easily accessed from the internet, using a PC with an Ethernet connection. This makes remote control quick and easy and offers signiﬁcant advantages for service operations. The 30XWHV is equipped with an RS485 serial port that offers multiple remote control, monitoring and diagnostic possibilities. Carrier offers a vast choice of control products, specially designed to control, manage and supervise the operation of an air conditioning system. Please consult your Carrier representative for more information. The 30XWHV also communicates with other building management systems via optional communication gateways. A connection terminal allows remote control of the 30XWHV by wired cable: - A digital input allows veriﬁcation of condenser water ﬂow (the ﬂow switch must be supplied by the installer). This function is required to control operation of the condenser pumps. - Start/stop: opening of this contact will shut down the unit - Dual set-point: closing of this contact activates a second set-point (example: unoccupied mode) - Demand limit: closing of this contact limits the maximum chiller capacity to a predeﬁned value - Operation indication: this volt-free contact indicates that the chiller is operating (cooling load) or that it is ready to operate (no cooling load) - Alarm indication: this volt-free contact indicates the presence of a major fault that has led to the shutdown of one or several refrigerant circuits.
Touch Pilot operator interface
New innovative smart control for variable-drive screwcompressor chillers. With the ultimate touch screen interface the Touch Pilot includes: - An intuitive and user-friendly interface. Concise and clear information is available in local languages. - Complete menu, customised for different users (end user, service personnel or Carrier engineers). - Safe operation and unit setting: password protection ensures that unauthorised people cannot modify any advanced parameters. - General access without password to the most important operating parameters. - Touch Pilot combines intelligence with operating simplicity. For optimum energy efﬁciency the control constantly monitors all machine parameters and precisely manages the operation of compressors, electronic expansion devices and of the evaporator and condenser water pumps. Energy management - Internal time schedule clock: controls chiller on/off times and operation at a second set-point - Set-point reset based on the return water temperature - The DCT (Data Collection Tool) records the alarms history to simplify and facilitate service operations.
Condenser leaving water temperature, °C
Evaporator Entering temperature at start-up Leaving temperature during operation Entering/leaving temperature difference at full load Condenser Entering temperature at start-up Leaving temperature during operation Entering/leaving temperature difference at full load
3.3°C* 2.8 K 13.0°C** 19.0°C** 2.8 K 35.0°C 20.0°C 11.1 K 50.0°C 11.1 K
50 45 40 35 30 25 20
Evaporator leaving water temperature, °C
From approx. 50% to full load Part load limit approx. 50% Minimum load limit For more precise details please refer to the unit selection program.
Options 5/6 not available For lower condenser temperatures, a water ﬂow control valve must be installed at the condenser (two-way or three-way). Please refer to option 152 to ensure the correct condensing temperature. Notes: Ambient temperatures: During storage and transport of the units (including by container) the minimum and maximum permissible temperatures are -20°C and 72°C (and 65°C for option 200). For more precise details refer to the unit selection program.