HYDROCIAT LW R407C. Water cooled chillers USE RANGE

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1 Screw compressors CIAT dry direct expansion shell and tubes evaporator HPS equipment (High Power System) cooling or heating Heat recovery ENVIRONMENTALLY HFC R407C PROTECTION DE FRIENDLY L'ENVIRONNEMENT Cooling capacity : 270 to 1140 kw Heating capacity : 350 to 1420 kw USE HYDROCIAT LW The HYDROCIAT LW screw compressor water cooled chillers are designed for indoor installation and offer an optimal solution for any refrigeration application in the air conditioning or industrial process. Units conform to regulations EN EN and to directives : - Machine (98 / 37 CEE) modified - CEM (89 / 336 CEE) modified 92/31 CEE - 93/68 CEE - Low voltage (73/23 CEE) modified 92/31 CEE - 93/68 CEE - DESP 97 / 23 CEE LW - LWP group 3 sizes 1200BZ (HPS) to 2800BZ (HPS) group 4 sizes 3200BZ HPS to 4200BZ HPS LWN outside PED (split unit) RANGE HYDROCIAT LW-LWP 2 compressors - 2 refrigerant circuits 12 models : LW - LWP 1200BZ BZ HPS BZ BZ HPS -1800BZ BZ HPS BZ BZ HPS BZ BZ HPS BZ BZ HPS. 3 compressors - 3 refrigerant circuits 4 models : LW - LWP 3200BZ HPS BZ HPS BZ HPS BZ HPS. HYDROCIAT LWN The HYDROCIAT LWN chilled water production units without condenser are designed to be connected to air or water cooled condensers. They can be connected to several models of our range of air cooled condensers EUROPA 2C. 12 models : LWN 1200BZ BZ HPS BZ BZ HPS -1800BZ BZ HPS BZ BZ HPS BZ BZ HPS BZ BZ HPS. HYDROCIAT LWP The design of the HYDROCIAT LWP water/water heat pump range is identical to HYDROCIAT LW. These machines provide solutions for a wide range of heating problems. They can also be used in cooling operation by reversing the cycle on the hydraulic circuits. 1

2 DESCRIPTION HYDROCIAT LW - LWP Water cooled chillers Compressors Accessible hermetic twin screw type Optimized profile of rotors ensuring high efficiency Electrical motor incorporated with part winding start Integral electronic protection fo motor Control of the phases balance and rotation direction Integrated overpressure valve Discharge temperature control Lubrication under controlled pressure 3-stage integrated oil separator Crankcase heater Thin filter at intake Discharge valve Slide for modulating continued output capacity control Assembly on antivibration mounts Integrated oil separator Installed at the compressor discharge The large amount of oil injected during the compression cycle necessitates the use of an oil separator. Oil, after separation from the refrigerant, is filtered before being injected into the compressor. Note : The refrigerant oil has several important roles to ensure the smooth running of the compressor. It : Lubricates bearings and moving parts and eradicates any direct contact between parts. Ensures a secure tightness between the different mechanical parts, thereby guaranteeing good volumetric output. Cools the compressor by direct oil injection into the gas volume being compressed. If required, the cooling of oil allows gas discharge temperature to be limited. Evaporator High performance copper tubes bundle Steel tubular plates Steel shell Corrosion-resistant baffles Thermal insulation with polyurethane foam Water cooled condenser High performance copper tubes bundle Carbon steel shell Carbon steel tubular plates Removable cast iron headers Safety valves on the refrigerant circuits HPS (High Power System) on LW/LWP/LWN...HPS models The HPS system allows a significant increase in the cooling capacity, improving the performance coefficients (EER) of your installation, particulary in part load, and therefore ensuring an optimal operation of the unit all year round. Refrigerant accessories Filter dryers with rechargeable cartridges Liquid sight glasses Solenoid valves on liquid refrigerant lines Thermostatic expansion valves Discharge check valves (LWN) Electrical panel IP 21 Electrical supply 400 V - 3 ph Hz + earth (-5% / +4%) Main fused isolator with outside handle Transformer for control circuit Compressor motors contactors Compressor motors protection by fused isolators. General earth connection Phase controller (reversal, loss, over and under voltage) Electronic module with XTRA CONNECT microprocessor with the following main functions : - 2 remote switchable set points - chilled water temperature control - Possibility of water temperature variation according to the outside temperature (water law) - Low temperature ice storage control - Compressors discharge temperature control - Compressors anti-short cycle control - Control and optimisation of operating parameters - Counting and balancing of compressors operating time - Automaticity control LCD display panel, 2 lines of 20 characters allowing : - parametering of the unit - direct reading of all information: settings, water inlet/outlet temperatures, outside temperature, HP/LP pressures, unit operating status... - Faults control with memorization of the last 9 faults and operating reading of when those faults occured - Weekly management of the unit - Unit general fault display on terminals - Automaticity control on terminals - RS 485 output for bus connection with centralized Building Management System 2

3 Safety and regulation controls HP/LP pressure sensors Low and high pressure safety valves Chilled water control sensor (inlet or outlet) External temperature sensor Evaporator antifreeze sensor Compressors discharge sensor Evaporator water flow switch Capacity control Modulating capacity control : - fom 25 to 100 % (Sizes 1200BZ (HPS) to 2800BZ (HPS)). - from 17 to 100 % (Sizes 3200BZ HPS to 4200BZ HPS). HYDROCIAT LWN The HYDROCIAT LWN range of water chillers without condenser is derived from the HYDROCIAT LW. These units can be connected either to water or air cooled condensers.they can be combined with several models of our EUROPA 2C air cooled condensers range (see technical brochure). HYDROCIAT LWN are supplied with a nitrogen safety refrigerant charge. Accessories Identical to those of the HYDROCIAT LW HYDROCIAT LWP The HYDROCIAT LWP water-water heat pump range has the same design as the HYDROCIAT LW. The calories are taken from the natural water network (ground water,...) or from a water loop and are sent to the heating network through the thermodynamic circuit, instead of being discharged by a cooling tower as is the case with the water chiller. These water-water heat pumps can be used for cooling by reversing the cycle on the water circuits (modification of the hydraulic circuits to be made on site). Accessories Identical to those of the HYDROCIAT LW OPTIONS HYDROCIAT LW - LWP - LWN LOW NOISE version : acoustically lined housing compressors Antivibration equipment : - antivibration mounts - evaporator flexible sleeves - condenser flexible sleeves (LW - LWP) - refrigerant flexible sleeves (LWN) Compressor isolating suction valves Condenser water headers Heating recovery with brazed plates desuperheaters (1 for each refrigerant circuit - LW - LWP only) Low temperature glycol water Electronic expansion valve Progressive soft start Reduced height version Remote control unit Voltage-free contact relay board Management of several units - MULTICONNECT (LW - LWP only) LonWorks gateway Shackles Discharge pressure control valves (LWN split - system unit): necessary if the unit has to run for external air temperature below 12 C or if the unit has to start for water temperature below 20 C on condenser side (one valve on each refrigerant circuit). These valves are fitted on the unit for sizes 1200BZ (HPS) to 1800BZ (HPS) and delivered separately (to be fitted on site by customer) for sizes 2150BZ (HPS) to 2800BZ (HPS). 3

4 TECHNICAL CHARACTERISTICS HYDROCIAT LW - LWN - LWP 1200BZ 1200BZ 1500BZ 1800BZ 2150BZ 1500BZ 1800BZ 2150BZ HPS HPS HPS HPS Cooling capacity (1) kw LW - LWP version Absorbed power (3) kw EER/ESEER 3.36/ / / / / / / /4.56 LWN version Cooling capacity (2) kw Absorbed power (3) kw Type Hermetic twin screw Number 2 Rotation speed rpm 2900 circ R407C refrigerant charge (4) kg Compressor circ Capacity control Modulating from 25 to 100% (50 to 100% on each compressor) Type of oil for R407C BITZER BSE 170 Oil charge for compressor liters 2 x x Type Shell and tubes with dry expansion Number 1 Evaporator Water capacity liters Hydraulic connections VICTAULIC type Maximum pressure on water side bar 10 Mini / maxi water flow m 3 /h 30 / / 110 Type Shell and tubes Number 2 Water cooled Water capacity liters 2 x 25 2 x condenser Hydraulic connections VICTAULIC type Maximum pressure on water side bar 10 Maximum water flow m 3 /h LWN liquid receiver Capacity liters 2 x x Standard version Lw / Lp (5) db(a) 96 / / / 68 Low Noise version Lw / Lp (5) db(a) 88 / / / 59 HYDROCIAT LW - LWN - LWP 2500BZ 2500BZ 2800BZ 3200BZ 3400BZ 3750BZ 4200BZ 2800BZ HPS HPS HPS HPS HPS HPS Cooling capacity (1) kw LW - LWP version Absorbed power (3) kw EER/ESEER 3.89/ / / / / / / /4.92 LWN version Cooling capacity (2) kw Absorbed power (3) kw Type Hermetic twin screw Number 2 3 Rotation speed rpm 2900 circ Compressor R407C refrigerant charge (4) kg circ circ Capacity control Modulating from 25 to 100% Modulating from 17 to 100% (50 to 100% on each compressor) (50 to 100% on each compressor) Type of oil for R407C BITZER BSE 170 Oil charge for compressor liters 2 x x 15 2 x x 22 Type Shell and tubes Number 1 Evaporator Water capacity liters Hydraulic connections VICTAULIC type Maximum pressure on water side bar 10 Mini / maxi water flow m 3 /h 50 / / / 211 Type Shell and tubes with dry expansion Number 2 3 Water cooled Water capacity liters 2 x 49 2 x x 36 2 x x 49 3 x 56 condenser Hydraulic connections VICTAULIC type Maximum pressure on water side bar 10 Maximum water flow m 3 /h LWN liquid receiver Capacity liters 2 x Standard version Lw / Lp (5) db(a) 102 / / / / / 73 Low Noise version Lw / Lp (5) db(a) 93 / / / / / 66 (1) Cooling capacity for 12 / 7 C evaporator chilled water and 30 / 35 C condenser hot water (2) Cooling capacity for 12 / 7 C evaporator chilled water and 45 C condensing temperature (3) Compressors absorbed power (4) LWN units without condensor are delivered with safety charge of nitrogen (5) Lw : Global sound power level - Lp : Global sound pressure level at 10 meters, in free field, following ISO 3744 regulation 5

5 ELECTRICAL CHARACTERISTICS HYDROCIAT LW - LWN - LWP 1200BZ 1200BZ HPS 1500BZ 1500BZ HPS 1800BZ 1800BZ HPS 2150BZ 2150BZ HPS COMPRESSORS (1) Maximum nominal current A (2 x 108) ( ) (2 x 162) ( ) Part winding starting current (3) A Starting current with Soft start option(3) A REMOTE-CONTROLLED AUXILIARY CIRCUIT (2) Maximum nominal current A 4 Transformer power VA HYDROCIAT LW - LWN - LWP 2500BZ 2500BZ HPS 2800BZ 2800BZ HPS 3200BZ HPS 3400BZ HPS 3750BZ HPS 4200BZ HPS COMPRESSORS (1) Maximum nominal current A (2 x 216) (2 x 246) ( x 162) (2 x ) (3 x 216) (3 x 246) Part winding starting current (3) A Starting current with Soft start option(3) A REMOTE-CONTROLLED AUXILIARY CIRCUIT (2) Maximum nominal current A 4 Transformer power VA 1000 (1) Current for 400V / 3Ph / 50Hz voltage (2) Current for 230V / 1Ph / 50Hz voltage (3) Starting current of the biggest compressor + maximum current of others compressors in full load Nominal current for cables selection = add the maximum nominal currents indicated in the above tables Electrical panel for LW 1200BZ (HPS) to 2800BZ (HPS) 6

6 DIMENSIONS Water cooled chillers HYDROCIAT LW - LWP 2 compressors, 2 refrigerant circuits with option without option DN 200 DN 16 (1) P P without option with option a : cooling water inlet b : cooling water outlet c : chilled water inlet d : chilled water outlet Option 1 : compressor suction valve Option 2 : acoustically lined housing Option 3 : condensers headers (flexible hydraulic sleeves and flange/ adapter included) Option 4 : hydraulic flexible connections (flange/ adapter included) Option 5 : 8 antivibration mounts 300 x 50 x 25 NOTE : the electrical wiring is on the right of the panel through the bottom Dimensions in mm (1) 1850 (models 1200BZ and 1500 BZ), 1860 (model 1800BZ) for reduced height version. Compressor suction valve mounted as standard and acoustically lined housing not available for this version. LW - LWP A - B c - d D E F G H J K M N P R S Weight in kg empty in operation 1200BZ (HPS) PN 16 DN 150 PN 16 DN BZ (HPS) PN 16 DN 150 PN 16 DN BZ (HPS) PN 16 DN 150 PN 16 DN

7 DIMENSIONS HYDROCIAT LW - LWP 2 compressors, 2 refrigerant circuits 4345 with option without option (1) 3200 without option 4005 with option a : cooling water inlet b : cooling water outlet c : chilled water inlet d : chilled water outlet Option 1 : compressor suction valve Option 2 : acoustically lined housing Option 3 : condensers headers (flexible hydraulic sleeves and flange/ adapter included) Option 4 : hydraulic flexible connections (flange/ adapter included) Option 5 : 8 antivibration mounts 400 x 70 x 25 NOTE : the electrical wiring is on the right of the panel through the bottom Dimensions in mm (1) 1970 for reduced height version. Compressor suction valve mounted as standard and acoustically lined housing not available for this version. LW - LWP A B c - d E F empty Weight in kg 2150BZ (HPS) PN 16 DN 150 PN 16 DN BZ (HPS) PN 16 DN 150 PN 16 DN BZ (HPS) PN 16 DN 150 PN 16 DN in operation 25

8 DIMENSIONS Water cooled chillers HYDROCIAT LW - LWP 3 compressors, 3 refrigerant circuits 4508 (1) a : cooling water inlet b : cooling water outlet c : chilled water inlet d : chilled water outlet Option 1 : compressor suction valve Option 2 : acoustically lined housing Option 3 : condensers headers (flexible hydraulic sleeves and flange/ adapter included) Option 4 : hydraulic flexible connections (flange/ adapter included) Option 5 : 8 antivibration mounts 400 x 70 x 25 NOTE : the electrical wiring is on the right of the panel through the bottom Dimensions in mm (1) 2050 for reduced height version. Compressor isolating suction valve mounted as standard and acoustically lined housing no available for this version. LW - LWP A - B - C c - d Weight in kg D empty in operation 3200BZ HPS PN 16 DN 150 PN 16 DN BZ HPS PN 16 DN 150 PN 16 DN BZ HPS PN 16 DN 150 PN 16 DN BZ HPS PN 16 DN 150 PN 16 DN

9 DIMENSIONS HYDROCIAT LWN 2 compressors, 2 refrigerant circuits (1) A Dimensions in mm (1) 1850 (models 1200BZ and 1500 BZ), 1860 (model 1800BZ) for reduced height version. Compressor suction valve mounted as standard and acoustically lined housing not available for this version. LWN a b c d e - f C D G H J K L M N P R Weight in kg empty in operation 1200BZ (HPS) 1 5/8 1 5/8 1 5/8 1 5/8 PN 16 DN BZ (HPS) 1 5/8 2 1/8 1 5/8 1 5/8 PN 16 DN BZ (HPS) 2 1/8 2 1/8 2 1/8 2 1/8 PN 16 DN

10 DIMENSIONS Water cooled chillers HYDROCIAT LWN 2 compressors, 2 refrigerant circuits (1) Dimensions in mm (1) 1970 for reduced height version. Compressor suction valve mounted as standard and acoustically lined housing not available for this version. LWN a b c d e - f B C D G H Weight in kg empty in operation 2150BZ (HPS) 2 1/8 2 5/8 2 1/8 2 5/8 PN 16 DN BZ (HPS) 2 5/8 2 5/8 2 5/8 2 5/8 PN 16 DN BZ (HPS) 2 5/8 2 5/8 2 5/8 2 5/8 PN 16 DN

11 RECOMMENDATIONS FOR ASSEMBLY HYDROCIAT LW - LWP Installation HYDROCIAT LW - LWP are designed for indoor installation and must be protected from adverse weather and frost. A free space of 1 meter must be left all around the unit for access to the electrical panel and other components. A free space on one side is also necessary (equal to the length of the unit) in case one of heat exchangers needs to be removed. Sound level problems should be studied in detail. Before installing the unit, study and if necessary treat (with the assistance of a sound technicien) the various possible noise transmissions in relation to the premises and its structure. If necessary the machine should be equipped with anti-vibration mounts and flexible connections (recommended and proposed as an option). Electrical connections All the indications necessary for the electrical connections are mentioned on the electrical diagram enclosed with the unit (to be respected). These connections must be made in accordance with accepted engineering practice and conform to the regulations in force. Leave the control circuit switched on to allow operation of the crankcase heater. The electrical mains supply must be fitted with a fuse or circuit breaker protection (to be supplied by the fitter). Hydraulic connections Water connections must be made in accordance with good engineering practice. Provide the accessories necessary for hydraulic circuits : - Expansion vessel, - Drain cocks at low points, - Isolating valves, - Air vents at high points, etc..., - Check that the water content in the installation is sufficient, - Provide, if required, a buffer tank. Commissioning In accordance with our installation and maintenance brochure. Maintenance See our operating and maintenance guide. Subscribe a maintenance contract. HYDROCIAT LWN Installation HYDROCIAT LWN re designed for indoor installation and must be protected from adverse weather and frost. A free space of 1 meter must be left all around the unit for access to the electrical panel and other components.. A free space on one side is also necessary (equal to the length of the unit) in case one of heat exchangers needs to be removed. Sound level problems should be studied in detail. Before installing the unit, study and if necessary treat (with the assistance of a sound technicien) the various possible noise transmissions in relation to the premises and its structure. If necessary the machine should be equipped with anti-vibration mounts and flexible connections (recommended and proposed as an option). Electrical connections All the indications necessary for the electrical connections are mentioned on the electrical diagram enclosed with the unit (to be respected). These connections must be made in accordance with accepted engineering practice and conform to the regulations in force. Leave the control circuit under voltage to allow operation of the crankcase heater. The electrical mains supply must be fitted with fuse or circuit breaker protection (to be supplied by the fitter). Hydraulic connections Water connections must be made in accordance with good engineering practice. Provide the accessories necessary for hydraulic circuits : - Expansion vessel, - Drain cocks at low points, - Isolating valves, - Air vents at high points, etc..., - Check that the water content in the installation is sufficient, - Provide, if required, a buffer tank. Refrigerant connections Work is to be carried out respecting the strictest accepted engineering practice and generally include : Installation of refrigerant piping between the internal part and the condenser - discharge and liquid pipes. Study with care the design (slope, diameter and trap to facilitate the return of oil to the compressor, particularly in part load). Fit refrigerant flexibles sleeves if the unit is mounted on antivibration mounts The length of connections between the 2 units will always be as short as possible (max. developped length : 15m, 6m of change in level; if indoubt, consult our technical departments). Vacuum cleaning of the circuit, refrigerant charge, commissioning. Maintenance Refer to the maintenance brochure delivered with each unit. Subscribe a maintenance contract 29

12 XTRACONNECT CONTROL ERGONOMIC INTERFACE PANEL - LDC multilingual screen (2 lines of 20 characters) - Pressures and temperatures reading - Pump control - Communication Available free contacts inputs / outputs Inputs : - External ON/OFF contact - Chilled water pump external ON/OFF contact - Setpoint 1/2 selection - General fault - Emergency stop - Compressors load shedding ma remote control Output :- General fault of the unit - General fault per dircuit - Pump control RS 485 OUTPUT IN STANDARD MODBUS-JBUS open Protocol (standard) LONWORKS Protocol (option) FREE CONTACTS RELAY CARD (OPTION) Available outputs : - Water flow fault - Antifreeze fault - Pump fault - Fans fault - Emergency stop fault - Low and high pressure fault - Compressors safety fault - Compressors superheating fault - Compressors lubrication fault - Discharge temperature fault - Compressors running REMOTE CONTROL BOX (OPTION) Operation and design same as display console MULTICONNECT MULTI-UNIT MANAGEMENT (OPTION) Main functions available: - Management of up to 8 units on a single water loop - Management in cooling mode (water chiller) or heating mode (heat pump) - Management of chilled-water or hot-water pumps - Centralised management of a backup unit - Unit load shedding - System time programming - Energy storage mode management - Fault management on each unit - Unit running time balancing - Integrated Modbus BMS link for obtaining information on unit operation and faults Non contractual document. With the thought of material improvement always in mind, CIAT reserves the right,without notice, to proceed with any technical modification. Head office & Factories Avenue Jean Falconnier - B.P Culoz - France Tel.: +33 (0) Fax: +33 (0) info@ciat.fr - CIAT Service Tel.: +33 (0) Fax: +33 (0) Compagnie Industrielle d Applications Thermiques - S.A. with a registered capital of R.C.S. Belley B

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