Tender Specification WQL / WQH / WQRC 20-190 Tender Specification SERIES: WQL / WQH / WQRC 20-190 TYPE: Water cooled water chiller, heat pump and condenserless unit TECHNOLOGY: single / multi-scroll compressors, R410A refrigerant CAPACITY RANGE: Cool ing 21-193 [kW] Heating 24-211 [kW]
Tender Specification WQL / WQH / WQRC 20-190 1 General description WQL / WQH / WQRC units have been designed and optimized to operate with R410A refrigerant and scroll compressors Thanks to multi-scroll technology and asymmetric design in tandem configuration, it is possible to reach very high level of seasonal performances (ESEER up to 5.
Tender Specification WQL / WQH / WQRC 20-190 • Extra Low Noise (ELN): the units are supplied with compressors box and additional insulation panels on the cabinet in order to furtherly reduce noise impact Desuperheater option is available for sizes 50 to 190: plate type heat exchangers fitted on the compressor discharge line, to recover about 20 % of the total heat rejected to the condenser Several hydraulic options are available in order to cover a wide range of requirements in terms of pump available stat
Tender Specification WQL / WQH / WQRC 20-190 • DHW (Domestic Hot Water) function available on the controller with 3-way valve available as accessory integration with plant • Desuperheater heat exchanger available as option (50-190 sizes) heating capacity for free thanks to heat recovery • Several options / accessories provided with standard delivery: o Phase sequence control safe electric installation o Control circuit transformer power supply without neutral o Water differential pressure switch
Tender Specification WQL / WQH / WQRC 20-190 3 Cabinet The cabinet is made of heavy gauge galvanized steel. All galvanized steel components are individually painted by a special painting process before the assembly of the unit. This painting system performs a homogeneous protection to the corrosion. The painting is a polyester powder based type, colored in RAL 7040.
Tender Specification WQL / WQH / WQRC 20-190 6 Condenser Outdoor heat exchangers are brazed stainless steel plate type. In case of WQH version they are insulated with a 10 [mm] thick closed cell polyethylene foam material and provided with Victaulic connections.
Tender Specification WQL / WQH / WQRC 20-190 (possibility to customize keys functions and to set menus visibility).
Tender Specification WQL / WQH / WQRC 20-190 Unit controller can display various alarms and operation status: • Low / High pressure • Evaporator antifreeze • Evaporator lack of water flow • Condenser lack of water flow • Compressor operation / operating hours and start-up numbers • Pump operation / operating hours • Compressor thermal protection • Faulty sensors 9 Safety and control devices Each unit is complete with the following safety and control devices Safety • • • • • • • • Door lock main isolating
Tender Specification WQL / WQH / WQRC 20-190 Control • • • • • • • • High pressure transducer (CCK option) Low pressure transducer (EEV option) Evaporator return water temperature sensor Evaporator leaving water temperature sensor (with an antifreeze function) Condenser return water temperature sensor Condenser leaving water temperature sensor Suction temperature sensor (EEV option) Outdoor ambient temperature sensor (OAT option) 10 Optional hydro kits On board mounted and remote hydro-kits are available
Tender Specification WQL / WQH / WQRC 20-190 • Expansion tank for indoor circuit (5 [l] for sizes 20 to 45, 18 [l] for sizes 50 to 190) • Check valves (in case of 2 pumps) • Safety valve • Automatic air vent valve • Thermal insulation for pipes and water pump(s) 11 Factory installed options • • • • • • • • • • • • • ModBus protocol kit for BMS Compressor soft starter Power factor correction capacitors Electronic expansion valve (standard for sizes 170 and 190) Compressor overload protection (only for siz
Tender Specification WQL / WQH / WQRC 20-190 12 Field installed accessories • • • • • • • • • • • • • • • • • Remote ON-OFF control Remote keyboard panel Sequencer, up to max four units Condensing control kit Water temperature sensor for DHW tank Outdoor air sensor for weather compensation Electric heater wiring kit Additional heating device wiring kit Pressostatic water valve for well application (only for sizes 20 to 45) Compressor jacket Water flow switch Water pressure switch Victaulic to threaded pip
Tender Specification WQL / WQH / WQRC 20-190 • Machine Directive: 2006/42/EC • Electromagnetic Compatibility Directive: 2014/30/EU • Pressure Equipment Directive: 2014/68/EU
