references
Water-cooled chillers
HYDROCIAT LW
OPTION
Options Light-brine solution, down to -3°C Medium-temperature brine solution Description Implementation of new algorithms of control to allow chilled brine solution production down to -3°C when ethylene glycol is used (0°C with propylene glycol) Implementation of new algorithms of control and evaporator redesign to allow chilled brine solution production down to -6°C when ethylene glycol is used (-3°C with propylene glycol) Implementation of new algorithms of control and evaporator redesign to allow chilled brine solution production down to -12°C when ethylene glycol is used (-8°C with propylene glycol) the unit on site Unit power connection via one main supply connection Unit equipped with an electrical power and control circuit for one pump evaporator side Unit equipped with an electrical power and control circuit for two pumps evaporator side Unit equipped with an electrical power and control circuit for one pump condenser side thermal condenser insulation Advantages Matches with most application requirements for ground-sourced LW ST / LW HE range
processes
Only sizes 1328 / 1528 / 2628 / 3008 Only sizes 1328 / 1528 / 2628 / 3008 Only sizes 4228 / 4408 / 4608 / 4628 2800 / 4628 708-3428 708-3428 708-3428
Low-temperature brine solution Unit supplied in two assembled parts Single power connection point Evap. pump power/ control circuit Evap. dual pumps power/control circuit Cond. pump power/ control circuit Heat Pump application
processes
Facilitates installation in plant rooms with limited access Quick and easy installation embedded in the unit control embedded in the unit control embedded in the unit control Optimisation on heating mode & minimize thermal dispersions condenser side Increased condenser leaving water temperature up to 63°C. Allows applications with high condensing temperature (heat pumps, installations with not generously sized dry-coolers or more generally, installations with dry-coolers in hot climate). NOTE: to ensure control of the condenser leaving water temperaMinimizes thermal dispersions condenser side (Included in the Heat Pump option) and allows compliancy with special installation criteria (hot parts insulated) Allow isolation of various refrigerant circuit components for simpli-
High condensing temperature
Optimized compressor for operation at high condensing temperature
Condenser insulation Service valve set Evaporator with one pass less Condenser with one pass less 21 bar evaporator 21 bar condenser water connections water connections Master/slave operation Lon gateway Bacnet over IP Condensing temperature limitation Control for low cond. temperature Energy Management Module
Thermal condenser insulation Liquid line valve (evaporator inlet) and compressor suction line valve Evaporator with one pass on the water side. Evaporator inlet and outlet on opposite sides. Condenser with one pass on the water side. Condenser inlet and outlet on opposite sides. side service pressure to 21 bar (standard 10 bar) side service pressure to 21 bar (standard 10 bar) Evaporator with reversed water inlet/outlet Condenser with reversed water inlet/outlet Unit equipped with supplementary water outlet temperature tion of two units connected in parallel Two-directional communication board complying with Lon Talk protocol Two-directional high-speed communication using BACnet protocol over Ethernet network (IP) temperature to 45°C Output signal (0-10 V) to control the condenser water inlet valve Control board with additional inputs/outputs. See Contacts available in option on control description.
Covers applications with a high water column evaporator side (typically high buildings) Covers applications with a high water column condenser side (typically high buildings)