HYDROCIATTMLW Water chillers Heat pump Options Options Description Advantages LW ST/HE Redesigned evaporator including turbulators to allow Low Brine with turbu- chilled brine solution production with low pressure drops Covers specific applications such as ice storage and industrial Only LW ST lators down to -15°C on the entire negative application range, down to -15°C processes (including turbulators, extra insulation and algorithms). Implementation of new control algorithms and redesigned Matches with most application requirements for ground- Light-brine solution, evaorator o allow chilled rine solution production downp t bsourced heat pumps and fits with many industrial processes down to -3°C to -3°C when ethylene glycol is used (0°C with propylene ● glycol) requirements 90-10 Copper-Nickel - Condenser tubes 90-10 Cu/Ni. condensers - Condenser tube sheets cladded with 90-10 Cu/Ni. Improved resistance to corrosion ● - Waterboxes not treated against corrosion. IP44 electrical protec- Control box thightness reinforced tion level Electrical box enclosure and outside electrical component Permits unit installation in more severe envrionments ● following IEC 60529 standard Unit supplied in two The unit is equipped with flanges that allow disassembly Facilitates installation in plant rooms with limited access Only sizes: assembled parts of the unit on site 4228/4408/4608/4628 Evap. single pump Unit equipped with an electrical power and control circuit Quick and easy installation: the control of fixed speed pumps is 708-3428 power/control circuit for one pump evaporator side embedded in the unit control 230V electrical plug 230V AC power supply source provided with plug socket Permits connection of a laptop or an electrical device during and transformer (180 VA, 0,8 Amps) unit commissioning or servicing ● Evaporator with one Evaporator with one pass on the water side. Evaporator Easy to install, depending on site. Reduced pressure drops pass less inlet and outlet on opposite sides. ● Master/slave oper- Unit equipped with supplementary water outlet tempera- Optimised operation of two units connected in parrallel opera- ation ture sensor kit (to be field installed) allowing master/slavetion with operating time equalisation ● operation of two unis connected in parallelt Condenser with one Condenser with one pass on the water side. Condenser Easy to install, depending on site. Reduced pressure drops pass less inlet and outlet on opposite sides. ● 21 bar evaporator Reinforced evaporator for extension of the maximum Covers applications with a high water column evaporator side water-side service pressure to 21 bar (standard 10 bar) (typically high buildings) ● Single power connec- Unit power connection via one main supply connection Quick and easy installation 2800/4628 tion point 21 bar condenser Reinforced condenser for extension of the maximum Covers applications with a high water column condenser side water-side service pressure to 21 bar (standard 10 bar) (typically high buildings) ● Reversed evaporator Evaporator with reversed water inlet/outlet Easy installation on sites with specific requirements water connections ● Reversed condenser Easy installation on sites with specific requirements water connections Condenser with reversed water inlet/outlet ● Condenser insulation Minimizes thermal dispersions condenser side (key option for Thermal condenser insulation heat pump or heat recovery applications) ● Service valve set Liquid line valve (evaporator inlet) and compressor Allow isolation of various refrigerant circuit components for suction line valve simplified service and maintenance ● Lon gateway Bi-directional communication board complying with Lon Connects the unit by communication bus to a building manage- Talk protocol ment system ● Simple installation: for applications with cold water at condens- Control for low cond. Output signal (0-10 V) to control the condenser water er inlet (ex. ground-source, groundwater-source, superficial temperature inlet valve water-source applications) the signal permits to control a 2 or ● 3-way valve to maintain condenser water temperature (and so condensing pressure) at acceptable values Compliance with Additional tests on the water heat exchangers: supply Swiss regulations (additional of PED documents) supplementary certificates Conformance with Swiss regulations ● and test certifications Compliance with Specifics documents according Morroco regulation Conformance with Morocco regulations Morocco regulation ● Dual relief valves on Three-way valve upstream of dual relief valves on the Valve replacement and inspection facilitated without refrigerant 3-way valve evaporator and the oil separator loss. Comforms to European standard EN378/BGVD4 ● ● ALL MODELS Refer to the selection tool to find out which options are not compatible CATALOGUE 2021 537 537