Water Cooled ChillerMODEL TMH 2A500 WT-34General Description :

Compressor :

Condenser :

Evaporator :

Refrigerant Circuit :

Electrical Panel :

Electronic Regulation :

Evaporating water chillers with water condensation for indoor installation. Equipped with TWO multi-stage oil-free centrifugal compressors designed and optimised to be used with refrigerant R134a. Assembled on a strong self-supporting base using stainless steel fixings, painted with epoxy powder paint with anti-rust coating (standard colours: structure RAL 5008; removable panels and electric boxes RAL 7035). All units are supplied completely wired and ready to be connected to the user’s plant. Prior to delivery every machine is submitted to a performance test, with tests of all the safety systems and componentsinstalled. The unit is available with compressor sound insulation kit for installation in areas where noise must be extremely limited.

Complete with Danfoss Turbocor totally oil-free compressors, specifically designed for the Air Conditioning and Refrigeration industry. Including magnetic bearings, variable-speed centrifugal compression and digital electronic controls to ensure these chillers achieve the highest overall efficiencies for water-cooled applications. Such compressors offer decisive advantages:

• Oil free design• High cooling capacity and COP• Economiser operation at high loads• Integrated, efficient infinite frequency capacity control• Magnetic bearings• Parallel operation with multi compressors • Exceptional part-load efficiencies • Compact footprint and low weight• Minimal maintenance & servicing• Incredibly quiet operation• No vibration in operation

Shell and tube condenser comprising copper pipes spindled on thick steel plate to make it as compact and strong as possible. Shut-off valves in the suction and discharge of the condenser make it possible to isolate it in case of maintenance operations, while still containing its load of refrigerant. Selected and optimised for connection to external cooling towers. All heat exchangers are supplied complete with PED certification and PED-certified pressure safety valve.

Shell and tube flooded type evaporator, specifically designed and optimised for R134a optimization. Complete with special finned pipes and a refrigerant level sensor to take advantage whole exchange surface, thereby achieving high saturated suction temperatures and higher COP values in any ambient and load conditions Made up of pre-formed U-shaped pipes, spindled on thick steel plate to make it as compact as possible. The inner septa are suitably imensioned to guarantee optimal speed of the cooling fluid, taking its loss of load into consideration.

The refrigeration circuit is made completely in copper piping, and includes: liquid shut-off valve and electro-valve, filter drier with replaceable cartridge, liquid and moisture indicator, electronic thermostatic valve, safety pressure meters on the high pressure side and low-pressure transducer, pressure sockets for refrigerant fill-up and draining. The low pressure side is insulated by a closed-cell anti-condensation foam.

The electrical panel is comprised of a watertight steel box to IP54, produced according to the strictest European norms. The mains power circuit is designed for 400V/3ph/50Hz supply, with fuse protection, counters, and thermal relays for each compressor. The control circuit is supplied with 230V/1ph/50Hz from an integral transformer and includes all control devices. All switchboards are equipped with an IEC socket for service supply on the field. All multi-compressor unit control panels are provided with a thermostat-run ventilation and heating system.

Control by MicroSmart microprocessor controller. Coupled to all of the safety devices on the machine. The microprocessor enables compressor operation and automatically rotates the lead / lag order of operation Programming and parameter setup can be done either directly on the display module, or by laptop running the necessary software, or via the integral full remote access.