Air cooled industrial chillers

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Damian Jones
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1 Air cooled industrial chillers

2 Main features R410A refrigerant Cooling capacity kw Air cooled industrial chillers Models Versions HE High Efficiency Finned coil evaporators submerged in the storage tank Scroll compressors Unique parametric microprocessors IC208CX. Single circuit with ne or two compressors (mod ) Dual circuit with four compressors (mod ) Electronic thermostatic expansion valve (optional) Phase monitor standard Compressors crankcase heaters standard Data declared according to EN14511:2011: cooling*: evaporator: 12/7 C; ambient temperature35 C

3 4 Versions Standard version 50Hz (mod ) Eurovent Energy class: C Power supply 400V/3/50Hz Standard version 60Hz UL (mod ) Power supply 460V/3/60Hz Versions Dual frequency version (mod ) Eurovent Energy class: C Power supply 400V/3/50Hz 460V/3/60Hz High efficiency HE version (mod ) Eurovent Energy class : A Increased condensing surface EC brushless fans standard Electronic expansion valve as option

pressure axial fans (option 201-602) Structure and panels made of carbon steel,

Condensing coils with aluminum fins and copper tubes Finned coil evaporator installed

4 Overview mod Axial fans - Centrifugal fans mod, (option) - EC brushless high head pressure axial fans (option ) Structure and panels made of carbon steel, galvanized and powder coated IP 54 electrical panel IC 208CX electronic controller Condensing coils with aluminum fins and copper tubes Finned coil evaporator installed inside the water storage tank Scroll compressors Thermostatic expansion valve - electronic expansion valve (option) P3/P5 centrifugal pumps - Double pump P3+P3/P5+P5 (option) - SP without pump

5 Overview mod Axial EC brushless fans (option) Electrical panel IP 54 grade protection Condenser coils on two sides. Tubes are made of copper and the corrugated fins are made of aluminium New high efficiency evaporator Scroll compressors (tandem) 2 Cooling circuit New frame with panels made of galvanized carbon steel sheet. Painting by epoxy polyester power coating. Electronic expansion valve (option)

6 Overview mod The expansion tanks are located inside the cavity (protected against impacts)

7 Cooling capacity Cooling capacity [kw]

8 EER Energy efficiency EEER High energy efficiency! HE EER = 3,1 CLASS A EER = 2,8 CLASS C EER = 2,5 CLASS D

9 ESEER Energy efficiency ESEER ESEER average = 3,8 ESEER average = 3,

Operating limits TEMPERATURES T amb MAX: : +43 C: may reach +50 C

step type fan control version for 20 C For T< + 5 C anti-freeze

MIN: -5 /-10 C Tw IN/OUT MAX: +35 /+30 C 43 C -5 /-20 C These

limits among the best on the market Standard configuration also

10 Operating limits TEMPERATURES T amb MAX: : +43 C: may reach +50 C with low water outlet temperatures T amb MIN : -5 with standard step type fan control version for 20 C For T< + 5 C anti-freeze solutions must be used EVAPORATOR WATER TEMPERATURES Tw IN/OUT MIN: -5 /-10 C Tw IN/OUT MAX: +35 /+30 C 43 C -5 /-20 C These values depend on the ambient temperature Advantages Operating limits among the best on the market Standard configuration also for low temperature applications (min. water outlet T down to 10 C) +30 /+35 C -5 /-10 C

Compressors Copeland ZP scroll compressors 2-pole electric motor cooled by the gas

Axial and radial compliance for superior reliability and efficiency Direct starting.

Installed on a compartment separated from the condensing one.

11 Compressors Copeland ZP scroll compressors 2-pole electric motor cooled by the gas drawn into the compressor. Axial and radial compliance for superior reliability and efficiency Direct starting. Suspended on rubber antivibration mounts. Installed on a compartment separated from the condensing one. Crankcase heater as standard Soft starter Soft starter (optional) factory fitted. Available for mod (it will be implemented also on mod ) Reduces starting current by about -30%

Evaporator Evaporator Tank in carbon steel Finned coil type evaporator with copper tubes and aluminium fins Higher design pressure; Refrigerant flows through the

015-351) Tank in AISI304; exchanger coil with copper tubes and fins and brass shoulders/case; No Ferrous fittings and pipes: stainless steel and/or brass and/or

12 Evaporator Evaporator Tank in carbon steel Finned coil type evaporator with copper tubes and aluminium fins Higher design pressure; Refrigerant flows through the tubes; The water flows through the baffles in contact with the finned surface; Non Ferrous version (mod ) Tank in AISI304; exchanger coil with copper tubes and fins and brass shoulders/case; No Ferrous fittings and pipes: stainless steel and/or brass and/or plastic; Air bleed valve Water discharge Advantages Low pressure drops on water side Well suited to operate with high flow rates and low ΔT Susceptibility to fouling significantly lower than plate heat exchangers Level sensor

rotor and life lubrication forms a single unit with the fan blades and is protected from

031 (IP44 for Mod.015-020) Centrifugal fans - option (mod.

13 Fans Axial fans (mod ) Axial fans with die-cast aluminium crescent-shaped blades The motor with external rotor and life lubrication forms a single unit with the fan blades and is protected from overheating by an integral thermal cutout. Protection rating: IP54 from Mod. 031 (IP44 for Mod ) Centrifugal fans - option (mod ) Double intake fans with the rotor shrink-fitted directly on the electric motor shaft. ON-OFF control with pressure switch on HP side Available head pressure Pa IP54 lateral air outlet option no more available

EC high pressure axial fans - option Ziehl ZA plus EC inverter (mod.201 802) They replace the centrifugal fans.

14 EC high pressure axial fans - option Ziehl ZA plus EC inverter (mod ) They replace the centrifugal fans. Synchronous brushless motor inverter driven Operating range: stepless rotation from 5% to 100% High available head pressure (about 150Pa) 55% = 550W 25% = 250W 20% = 200W EC motor Advantages Higher precision in condensation pressure control Seasonal energy aving -20%. Pays off in few months -20% Seasonal energy saving

15 Options and configurations

16 Dual frequency version (mod ) Dual frequency version Mod Power supply 400V/3ph/50Hz - 460V/3ph/60Hz (necessary to change the supply of the primary circuit of the control circuit transformer) Available only 2 configuration with P3 pump or SP (without pump)

Electronic Expansion Valve (mod. 081-802) Features Option available for mod.

sensor and a temperature sensor correspond to the pressure fitting for compensation and the sensor bulb in the TEV.

17 Electronic Expansion Valve (mod ) Features Option available for mod EEV is a servo-controlled and electro-mechanic device which expands the flow of refrigerant in a variable manner A pressure sensor and a temperature sensor correspond to the pressure fitting for compensation and the sensor bulb in the TEV. Both these sensors are fitted to the evaporator outlet Advantages Quicker response time for changes Stable superheat in the whole range of operation conditions, both for full as well as part load operation. E 2 V

flexible pipes New configuration with INLET/OUTLET manifolds

18 Double pumps option (mod ) Features Pumps work in stand-by Hydraulic connections with flexible pipes New configuration with INLET/OUTLET manifolds Intercepting and no returns valves Pumps switching automatically (running times equalization). mod mod

Antifreezing heaters option Features Electrical heaters wraped around tank & pump If -10 C < T amb. < 0 C heaters and pumps are switched ON by the electronic control. If -20 C < T amb.

19 Antifreezing heaters option Features Electrical heaters wraped around tank & pump If -10 C < T amb. < 0 C heaters and pumps are switched ON by the electronic control. If -20 C < T amb. < -10 C in addition to the anti-freeze heaters, it is necessary to double insulate tanks and pumps (special machine). If outlet water temperature Tw out <+5 C it is necessary to use antifreeze mixtures.

20 Close temperature control LASER version Features The valve keeps the temperature of the process water at the unit outlet constant and within narrow tolerances (precision ±0.5 C) by injecting hot gas into the evaporator. Availability: mod hot gas bypass solenoid valve (mod ) or electronic expansion valve ( ) shut-off valves for hot gas bypass (TAEevo ) Advantages High precision PID control Control of outlet temperature independent of compressor minimum ON/OFF times

Low ambient temperature version -20 C (mod.

21 Low ambient temperature version -20 C (mod ) Features Electronic fans speed control. Electr. panel heater Cranckcase heater Suitable for ambient temperature down to -20 C: For operation without glycol the Antifreeze heaters option must also be specified.

22 TAEevo TECH: QR CODE

23 TAEevo TECH: QR CODE

24 TAEevo TECH vs TAEevo R407C

25 TAEevo TECH vs TAEevo R407C: refrigerant charge Refrigerant charge [Kg] % + environmental friendly TAEevo TECH TAEevo

26 High efficiency Air cooled industrial chillers High efficiency version

27 TAEevo Tech R410A: HE version Features Mod ZP SCROLL COPELAND compressor; Increased condensing surfaces High efficiency axial fans Ziehl ZA plus EC inverter High energy efficiency: EER > 3,1 CLASS A High efficiency

28 Air cooled industrial heat pumps

29 High efficiency air-cooled reversible heat pumps Models Versions Main features Erp 2017 ready Energy efficiency class A+ Refrigerant R410A Power supply: 400/3/50 Cooling/Heating capacity: kw / kw Finned coil evaporators submerged in the storage tank Scroll compressors Axial EC brushless fans (option) IC 208CX electronic controller Single circuit with one or two compressors Electronic thermostatic expansion valve (optional) Phase monitor standard Compressors crankcase heaters standard Data declared according to EN14511:2013: cooling*: evaporator: 12/7 C; ambient temperature35 C

30 TWEevo TECH Water cooled industrial chiller

31 TWEevo TECH Water cooled industrial chillers Main features Mod Power supply: 400/3/50 & 460/3/60 UL Refrigerant R410A Cooling capacity kw Finned coil evaporators submerged in the storage tank Models Versions Shell&Tube condensers Scroll compressors Unique parametric microprocessors IC208CX. Single circuit with ne or two compressors (mod ) Dual circuit with four compressors (mod ) Electronic thermostatic expansion valve (optional) Phase monitor standard Compressors crankcase heaters standard

32 Air cooled industrial chiller for high ambient temperature

33 TAEevo PLUS R134a Standard version for Tamb max +50 C (Twout +15 C); Refrigerant R134a; Mod ; Cooling capacity 3,8 90kW; Dynamic water set point according to the outside temperature Electrical panel ventilation; Pumps suitable for +50 C (oversized motor);

34 Working limits AMBIENT TEMPERATURE Minimum ambient temperature = 0 C (1) (STD version) Maximum ambient temperature = 50 C (Tw in/out = 20 C/15 C) (1) Tamb min = 0 C. The value refers to the machine full of ON / OFF fan. For units with electronic control of the fans consider -5 C. WATER TEMPERATURE Outlet water temperature MIN = 0 C (with glycol) Inlet water temperature MAX = 35 C;

35 Air cooled industrial chiller for low water temperature

36 TAEevo LWT Minimum outlet water temperature -20 C Mod. available ; Cooling capacity 7 70kW Scroll compressors; Compressor crankcase heater; Check valves for compressors in tandem; Solenoid valve on liquid line; Double insulation on hydraulic tank; Pumps with oversized motor suitable for high percentages of glycol; Valves on pump suction and discharge;

37 TAEevo LWT - Working limits AMBIENT TEMPERATURE Minimum ambient temperature = 5 C (1) (STD version) Maximum ambient temperature = 45 C (Tw in/out = -10 C/-15 C). (1) The value refers to the machine with ON/OFF fans control. For units with electronic control Tamb min -10 C. WATER TEMPERATURE Minimum outlet water temperature = -20 C Maximum inlet water temperature = 0 C (1) (1) transients during start-up with higher temperatures are allowed.

38 Thank You for Your kind attention

EKS/HE. MultiScroll Air-cooled liquid chillers High efficiency. Solution B - Base I - Integrata

EKS/HE. MultiScroll Air-cooled liquid chillers High efficiency. Solution B - Base I - Integrata EKS/HE Refrigerant R410A GWP=2.088 Scroll Compressor Shell & Tube exchanger Axial fan Brazed plate heat exchanger MultiScroll Air-cooled liquid chillers High efficiency Solution B - Base I - Integrata