DYNACIAT LGN. Description. Split system Water chillers. High energy efficiency Compact and quiet Scroll compressors Brazed-plate heat exchangers

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1 High energy efficiency Compact and quiet Scroll compressors Brazed-plate heat exchangers Self-adjusting electronic control Cooling capacity: 35 to 700 kw 410A Cooling Operation DYNACIAT - DYNACIAT POWER LGN series single unit water chillers without condensers are machines designed for air conditioning applications in community and service sector buildings, as well as for industrial premises and processes. These units are designed to be installed as standard in rooms that are protected against freezing temperatures and inclement weather. Range DYNACIAT - DYNACIAT POWER LGN series Cooling-only model without condenser (for split system). Description DYNACIAT - DYNACIAT power LGN series models are supplied as standard with the following components: - chilled-water evaporator - chilled-water outlet power control - control, automatic operation and start-up box:. Electrical supply: Three-phase 50 Hz - 400V (+10%/-10%) + Earth. Control circuit 1~50Hz 230V (+10%/-10%) (transformers fitted on unit as standard) - casing for indoor installation The entire DYNACIAT - DYNACIAT power LGN range conforms to standards and the following European EC directives: - Machinery directive 2006/42/EC - Electromagnetic compatibility directive 2014/30/EU - EMC immunity and emissions EN C3 - Low voltage directive 2014/35/EU - RoHS 2011/65/EU - Pressure equipment directive (PED) 2014/68/EU - Machinery directive EN Refrigerating systems and heat pumps EN HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B 1

2 Main components n Casing - Removable galvanised metal panels - RAL 7024 and RAL 7035 lacquer coating n Hermetic SCROLL compressors - Built-in electric motor cooled by suction gases - Motor protected by internal winding thermostat - Placed on anti-vibration mounts - Integrated crankcase heater n Evaporator - Brazed-plate exchanger(s) - End and inside plates in AISI 316 stainless steel - High-performance, optimised plate patterns - Thermal insulation n Condenser - Unit without condenser - Connection possible on CIAT OPERA-type separate air cooled condenser - Refrigerating sleeves available as an option n Cooling accessories - Dehumidifier filters with rechargeable cartridges - Hygroscopic sight glasses - Solenoid valves on liquid refrigerant lines - Thermostatic expansion valves (700V to 1000V models) - Electronic expansion valves (1100V to 2400V models) - Electronic evaporation pressure controller. n Control functions and safety devices - Thermostatic or electronic expansion valve(s) - Refrigerant high and low-pressure safety devices, - Safety valves on refrigeration circuit - Temperature and pressure sensors - Evaporator water flow controller n Electrics box The fully wired electrics box which houses all the electrical components and the electronic CPU board, controls the entire unit, monitors its operation, adjusts water setpoints and interfaces with an external control system. It comprises: - Control and power circuits - Wire numbering - Main safety switch with handle on front - Control circuit transformer - Circuit breakers on the power and control circuits - Compressor and motor switch(es) - Main earth connection - Microprocessor-controlled electronic control unit CONNECT2 - Alarm or information signals on free terminals n CONNECT2 electronic control module CIAT electronic control module with microprocessor and CPU, with central automatic operation and access to internal operation states. Features: - Start, stop, reset or remote control - Operating mode selector - Outputs RS485 for CMS link (ModBus-JBus) additional potential-free (dry) contact card adapter remote control adapter - Multilingual analogue LCD and LED display Functions: - Operation information displayed via: multilingual clear-text messages direct temperature and pressure readings - complete management of compressors with start-up sequence, timer and runtime balancing Master/slave Management allows two machines to be controlled on a single water loop, by alternating the master and slave according to the running time. - Short-cycle protection - Self-adjusting and proactive functions with adjustment of settings drift control - Series stage system on multiple compressors reduces power according to cooling or heating demands measured from water temperature - Monitoring of internal operation parameters - Second setpoint management - Setpoint adjustment by 4-20 ma signal - Master/slave operation - Weekly programming - Direct readout of water temperatures - Diagnosis of operation and fault states: HP/LP, water flow, compressor motor(s), frost protection - Remote management and remote monitoring n Remote control CONNECT2 is equipped as standard with an RS485 serial port offering a range of remote management, monitoring and diagnostic options via the communication bus. Several contacts are available as standard, enabling the unit to be controlled remotely by cabled link: - automatic operation control: when this contact is open, the machine stops - setpoint 1/setpoint 2 selection: when this contact is closed, a second cold setpoint is activated (energy storage mode, for example) - setpoint adjustable by 4-20 ma signal: this input is used to adjust the setpoint - compressor load shedding: closing the contact or contacts concerned allows the power or cooling consumption of the machine to be limited by stopping one or more compressors - water pump 1 and 2 control: these outputs control the contact switches for one or two water pumps - fault reporting: this contact indicates the presence of a major fault which has caused one or both cooling circuits to stop. n Power control Series stage output control system on the compressors 2 HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B

3 Standard equipment/available options DYNACIAT - DYNACIAT POWER LGN 120V to 600V 700V to 2400V Safety switch l l Control circuit transformer l l Electrical cabinet wire numbers l l RS485 communication interface l l Water flow controller l l Master/slave control of two machines l l Ethernet gateway l l Electronic expansion valve - l s Low Noise version (compressor casing) - s Xtra Low Noise version (compressor casing with noise insulation) l s Discharge pipe shut-off valve z - Compressor suction shut-off valves - s Low-temperature glycol/ (0 C to -12 C) l s Soft start s s Water filter on evaporator z z Phase controller (reversal, loss, asymmetry, over and under voltage) z z Anti-vibration mounts l z Evaporator flexible hydraulic sleeves z z Flexible sleeve for refrigerant pipe connection z - Refrigerant leak detection z z Remote control unit (remote control console) z z Relay board with dry contacts z z Energy meter - s MULTICONNECT multi-unit management z z LONWORKS / BACNET gateway z z l Supplied as standard s Factory-fitted option z Option supplied in kit - Not available HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B 3

4 Technical characteristics 120V 150V 200V 240V 300V 350V 400V 500V 540V 600V Performance Refrigeration circuit Compressor Net cooling capacity (1) kw Net power input (2) kw Net EER kw Discharge output Lw / Lp (3) db(a) Quantity 1 2 Refrigerant (GWP) R410A (2 088) Refrigerant charge Refrigerant not supplied (nitrogen charge) Type Hermetic SCROLL (2 900 rpm) Quantity Start-up mode Direct in line in series No. of stages Power control Power distribution per circuit C1/C2 Refrigerant oil type % % 50 / / / 50 POE 3MAF (32CST) Oil capacity l (cir.1) l (cir.2) Type Brazed-plate heat exchanger Quantity 1 Water content l Evaporator High pressure circuit Dimensions Weight Min / max water outlet temperature C -12 C/+18 C Min/max water flow m 3 /h 3.5/ / / / / / / / / /58.4 Minimum system water volume l Hydraulic connections Ø G 1''1/2 G 2 G 2''1/2 PN16 DN80 flanges Minimum system diameter Ø DN 50 DN 65 DN 80 Max service pressure bar 10 bar water side Type Without condenser Male gas discharge D Ø (cir1) 7/8" 1"1/8 1"3/8 1"1/8 1"1/8 D Ø (cir2) /8" 1"1/8 Male liquid return L Ø (cir1) 5/8" 7/8" 1"1/8 7/8" 7/8" L Ø (cir2) /8" 7/8" Max service pressure bar 40.5 bar Storage temperature C -20 C/+50 C Length mm Width mm 883 Height mm 1201 Weight (empty) kg Weight in operation kg (1) Net outputs for chilled water temperature +12 C/+7 C and condensation +45 C (2) Compressors net power input (3) Lw: overall power level as per standard ISO 3744 LP: overall pressure levels measured at 10 m in a free field, calculated using the formula LP=Lw-10 log S Values calculated for a refrigerant connection 7 m in length 4 HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B

5 Performance Refrigeration circuit Compressor Evaporator Technical characteristics DYNACIAT POWER LGN 700V 800V 900V 1000V 1100V 1200V 1400V 1600V 1800V 2100V 2400V Net cooling capacity (1) kw 203,4 235,3 263,2 293, ,9 520,5 590,4 656,9 Net power input (2) kw 53,6 61,7 69, ,2 94,2 107,3 120,3 142, ,2 Net EER 3,79 3,81 3,77 3,76 3,75 3,76 3,74 3,72 3,64 3,62 3,59 Discharge output ,1 409,2 448,2 508,2 568,2 663,4 753,4 840,1 Lw/Lp - Standard (3) db(a) 89/57 90/58 89/57 90/58 91/59 95/63 96/64 93/61 95/63 97/65 Lw/Lp Low Noise (3) db(a) 84/52 85/53 86/54 87/55 88/56 90/58 91/59 89/57 90/58 91/59 Lw/Lp Xtra Low Noise (3) db(a) 79/47 80/48 81/49 82/50 85/53 86/54 85/53 86/54 87/55 Quantity 2 Refrigerant (GWP) R410A (2 088) Refrigerant charge Refrigerant not supplied (nitrogen charge) Type Hermetic SCROLL (2 900 rpm) Quantity 4 6 Start-up mode Power control No. of stages % Direct in line in series Power distribution per circuit C1/C2 % 50 / / / 50 Refrigerant oil type POE 160SZ POE 3MAF Oil capacity l (cir.1) l (cir.2) Type Brazed-plate heat exchanger Quantity 1 Water content l Min / max water outlet temperature C -12 C / +18 C Min/max water flow m 3 /h 22/70 26/81 29/82 33/105 35/113 38/124 44/137 51/151 61/150 68/150 74/150 Minimum system water volume l Hydraulic connection Ø VICTAULIC DN 100 VICTAULIC DN 125 VICTAULIC DN 150 Minimum system diameter Ø DN 100 DN 125 DN 150 Max service pressure bar 10 bar water side Type Without condenser High pressure circuit Male gas discharge Male liquid return D Ø (cir1) 1"3/8 1"5/8 2"1/8 D Ø (cir2) 1"3/8 1"5/8 2"1/8 L Ø (cir1) 1"1/8 1"3/8 1"5/8 L Ø (cir2) 1"1/8 1"3/8 1"5/8 Max service pressure bar 40.5 bar Dimensions Weight Storage temperature C -20 C/+50 C Length mm Width mm 996 Height mm Weight (empty) kg Weight in operation kg (1) Net outputs for chilled water temperature 12 C/7 C and condensation 45 C (2) Compressors net power input (3) Lw: overall sound power level as per ISO3744 LP: overall pressure levels measured at 10 m in a free field, calculated using the formula LP=Lw-10 log S Values calculated for a refrigerant connection 7 m in length HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B 5

6 Electrical characteristics 120V 150V 200V 240V 300V 350V 400V 500V 540V 600V COMPRESSOR Voltage V 400V - 3Ph - 50Hz (+10%/- 10%) Maximum rated current A Starting current (1) A Starting current with Soft Start option (1) A REMOTE CONTROL AUXILIARY CIRCUIT Voltage V 230V - 1Ph - 50Hz (+10%/- 10%) Transformer fitted Maximum rated current A Transformer capacity VA Electrics box protection rating IP 22 Machine protection rating IP 22 Breaking capacity ka 50 Max. cable section according to disconnect switch (2) Max. cable section according to rating (3) mm mm DYNACIAT POWER LGN 700V 800V 900V 1000V 1100V 1200V 1400V 1600V 1800V 2100V 2400V COMPRESSOR Voltage V 400V - 3Ph - 50Hz (+10%/- 10%) Maximum rated current A Starting current (1) A Starting current with Soft Start option (1) A REMOTE CONTROL AUXILIARY CIRCUIT Voltage V 230V - 1Ph - 50Hz (+10%/- 10%) Maximum rated current A Transformer capacity VA Electrics box protection rating IP 21 Machine protection rating IP 21 Breaking capacity ka Max. cable section according to disconnect switch (2) Max. cable section according to rating (3) mm mm x 185 (1) Starting current of largest compressor + maximum current of other compressors under full load (2) Max. cable section permitted by the disconnect switch in terms of cable diameter and connection terminals (3) Min. cable diameter required, determined from maximum rated currents. 6 HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B

7 Condenser cooling and heating discharge outputs DYNACIAT - DYNACIAT POWER LGN R410A LGN 120V 150V 200V 240V 300V 350V 400V Evaporator water outlet temperature ( C) Cc: Gross cooling capacity Pi: Compressors gross absorbed power. Hc: Gross heating capacity CONDENSATION TEMPERATURE ( C) Cc Pi Hc Cc Pi Hc Cc Pi Hc Cc Pi Hc Cc Pi Hc kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw Standard conditions required. Calculated fouling m 2 C/W HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B 7

8 Condenser cooling and heating discharge outputs DYNACIAT - DYNACIAT power LGN R410A LGN 500V 540V 600V 700V 800V 900V 1000V Evaporator water outlet temperature ( C) CONDENSATION TEMPERATURE ( C) Cc Pi Hc Cc Pi Hc Cc Pi Hc Cc Pi Hc Cc Pi Hc kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw Cc: Gross cooling capacity Pi: Compressors gross power input. Hc: Gross heating output to be discharged Standard conditions required. Calculated fouling m 2 C/W 8 HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B

9 Condenser cooling and heating discharge outputs DYNACIAT - DYNACIAT power LGN R410A LGN 1100V 1200V 1400V 1600V 1800V 2100V 2400V Evaporator water outlet temperature ( C) CONDENSATION TEMPERATURE ( C) Cc Pi Hc Cc Pi Hc Cc Pi Hc Cc Pi Hc Cc Pi Hc kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw Cc: Gross cooling capacity Pi: Compressors gross power input. Hc: Gross heating output to be discharged Standard conditions required. Calculated fouling m 2 C/W HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B 9

10 Sound levels Split system The distinguishing feature of the range is its rigorous design incorporating the latest "noiseless" assembly techniques guaranteeing a reduction in vibrations and sound pollution: n Scroll compressor(s) fitted on anti-vibration mounts. n Refrigerating circuit fitted on anti-vibration mounts on a structure which is insulated from the frame (120 to 600). n Pipes uncoupled from unit structure. n Sound power level ref 2 x Pa ±3 db (Lw) DYNACIAT SOUND POWER LEVEL SPECTRUM (db) 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz Overall level Lw db(a) 120V V V V V V V V V V n Sound pressure level ref 2 x 10-5 Pa ± 3 db (Lp) Measurement conditions: n free field n 10 metres from machine, 1.50 metres above floor level n directivity 2 DYNACIAT SOUND PRESSURE SPECTRUM (db) 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz Overall level LP db(a) 120V V V V V V V V V V N.B.: Sound pressure levels depend on the installation conditions of each system. As such, the levels listed above are given for information only. We remind you that only sound power levels are comparable and certified. 10 HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B

11 Sound levels STANDARD version (without noise insulation on compressors) n Sound power level ref 2 x Pa ±3 db (Lw) DYNACIATpower SPECTRE DE NIVEAU DE PUISSANCE (db) 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz Niveau puissance global db(a) 700V V V V V V V V V V V n Sound pressure level ref 2 x 10-5 Pa ±3 db (Lp) Measurement conditions: free field, 10 metres from machine, 1.50 metres above floor level, directivity 2. DYNACIATpower SPECTRE DE NIVEAU DE PUISSANCE (db) 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz Niveau puissance global db(a) 700V V V V V V V V V V V N.B.: Sound pressure levels depend on the installation conditions of each system. As such, the levels listed here are given for information only. Only the sound power levels are comparable and certified. HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B 11

12 Sound levels LOW NOISE version (compressor casing) n Sound power level ref 2 x Pa ±3 db (Lw) DYNACIATpower SPECTRE DE NIVEAU DE PUISSANCE (db) 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz n Sound pressure level ref 2 x 10-5 Pa ±3 db (Lp) Measurement conditions: free field, 10 metres from machine, 1.50 metres above floor level, directivity 2. Niveau puissance global db(a) 700V V V V V V V V V V V DYNACIATpower SPECTRE DE NIVEAU DE PUISSANCE (db) 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz Niveau puissance global db(a) 700V V V V V V V V V V V N.B.: Sound pressure levels depend on the installation conditions of each system. As such, the levels listed here are given for information only. Only the sound power levels are comparable and certified. 12 HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B

13 Sound levels XTRA LOW NOISE version (compressor casing with noise insulation) n Sound power level ref 2 x Pa ±3 db (Lw) DYNACIATpower SPECTRE DE NIVEAU DE PUISSANCE (db) 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz Niveau puissance global db(a) 700V V V V V V V V V V V n Sound pressure level ref 2 x 10-5 Pa ±3 db (Lp) Measurement conditions: free field, 10 metres from machine, 1.50 metres above floor level, directivity 2. DYNACIATpower SPECTRE DE NIVEAU DE PUISSANCE (db) 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz Niveau puissance global db(a) 700V V V V V V V V V V V N.B.: Sound pressure levels depend on the installation conditions of each system. As such, the levels listed here are given for information only. Only the sound power levels are comparable and certified. HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B 13

14 Operating range LGN 120 to 2400 Condensation temperature ( C) Glycol compulsory Evaporator limits Evaporator water outlet temperature ( C) The curves opposite represent the minimum and maximum temperature differences permissible for chilled water or glycol/water mix according to the outlet temperature. Example: For one water outlet: + 5 C Minimum difference: 2.6 C Water temperature: 7.6/5 C Maximum difference: 6 C Water temperature: 11/5 C If the temperature difference calculated is outside the two curves, contact us. T admissible water inlet/outlet temperature difference ( C) Brazed plate evaporator Maximum T Minimum T coefficients Water outlet temperature ( C) Calculation T for performance tables n 30% concentration by weight of glycol. n Solution freezing point: C. K: correction factors. Values read in instructions: Cc: cooling capacity based on selection tables. Pi: compressor power input based on selection tables. DP: Water pressure drop based on the curves, for the corresponding corrected flow rate (Qc). Corrected values based on calculations opposite: Ccc: Corrected cooling capacity. Qc: Corrected chilled water flow. DHc: Corrected water pressure drop (evaporator or condenser. Evaporator CORRECTION Cooling capacity Chilled water flow rate Water pressure drop Avg. temp. gradient POSITIVE TEMP. NEGATIVE TEMP. K Calculation method K Calculation method 0,98 Ccc = Cc x ,00 See selection table Ccc x 0.86 Ccc x ,05 Qc = x ,10 Qc = x 1.10 DT DT 1,15 DHc = DC x ,30 DHc = DC x /7 C See operating limits 14 HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B

15 Correction coefficients for ethylene glycol n Evaporator Condenser Volume percent concentration of ethylene glycol n Glycol concentration required Multiplier correction factor Cooling capacity Water flow rate Pressure drops 10 0,99 1,05 1, ,985 1,10 1, ,98 1,15 1, ,97 1,20 1,23 Volume concentration in % Ethylene glycol Propylene glycol Freezing point C Minimum water outlet C Freezing point C Minimum water outlet C Minimum water volume The Connect controller uses anticipation logic making it particularly flexible in adjusting operation by authorising changes to settings, particularly on hydraulic systems with low water volumes. By adjusting compressor running times, it prevents short-cycle protection cycles from starting and, in most cases, eliminates the need for a buffer tank by improving the reliability of the machine. The calculation of the minimum water volume is given for EUROVENT rated conditions, in cooling mode only. N.B.: Calculations of minimum volumes of chilled water are made for the following conditions: - chilled water temperature to evaporator: 12 C/7 C - condensation temperature: 45 C This value is applicable for most air conditioning applications (unit with fan coil units) Comment: For installations running with a low volume of water (assembly with air handling unit) or for industrial processes, the buffer tank is a required component. 120V 150V 200V 240V 300V 350V 400V 500V 540V 600V Min. system capacity (litres) DYNACIAT POWER LGN 700V 800V 900V 1000V 1100V 1200V 1400V 1600V 1800V 2100V 2400V Min. system capacity (litres) HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B 15

16 Water pressure drop LGN Shell and tube evaporator water pressure drop 16 Water pressure drop (mwc) V 150V 200V 240V 300V 400V 350V 500V 600V 540V Water flow rate m 3 /h Do not extrapolate the curves. Always stay within minimum and maximum flow rate values. Evaporator water pressure drop filter V - 150V 300V - 350V 400V - 500V Water pressure drop (mwc) V - 240V 540V - 600V Water flow rate m 3 /h 16 HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B

17 Hydraulic specifications LGN n Shell and tube evaporator water pressure drop DYNACIAT POWER LGN Water pressure drop (mwc) V 800V 900V 1000V 1400V 1100V 1200V 1600V 2100V V 1800V Water flow rate m 3 /h Do not extrapolate the curves. Always stay within minimum and maximum flow rate values. n Evaporator water pressure drop filter Water pressure drop (mwc) V to 900V 1000V to 1600V 1800V to 2400V Water flow rate m 3 /h HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B 17

18 Dimensions 120V - 500V Fig.1 Fig L D L D 2 1 A E 150 E LGN Figure 1 2 A D 7/8 1 1/8 1 3/8 D L Discharge pipe(s) connection Fluid return pipe(s) connection Chilled water inlet Chilled water outlet Electrical supply L 5/8 7/8 1 1/8 G 1 1/2 G 2 G 2 1/2 E Ø 40 Ø 60 Weight (kg) empty in operation HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B

19 Dimensions 540V - 600V L D L' D' 2370 E Circuit 1 Circuit 2 Weight (kg) LGN D 1 1/8 L 7/8 D 7/8 1 1/8 L 7/8 PN16 DN80 flanges E Ø 60 Ø 60 empty In operation D D L L E Discharge pipe(s) connection Fluid return pipe(s) connection Chilled water inlet Chilled water outlet Electrical supply HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B 19

20 Dimensions Split system n DYNACIAT POWER LGN 700V to 1200V 340±10 49± P P Door opening Ouverture de la porte 1000 P Wooden blocks X 4 Cales bois X E 2 Electrical connection on the side Noise insulation panels option Discharge pipe(s) connection - Fluid return pipe(s) connection Chilled water inlet Chilled water outlet LGN Circuit /8 1 5/ /8 1 3/8 Circuit 2 Weight (kg) 3 1 3/8 1 5/ /8 1 3/8 DN 100 VICTAULIC DN 125 VICTAULIC empty in operation HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B

21 Dimensions n DYNACIAT POWER LGN 1400V to 1600V ±10 63± Door opening Ouverture de la porte P P Wooden blocks X 4 Cales bois X4 P E Electrical connection on the side Noise insulation panels option Discharge pipe(s) connection - Fluid return pipe(s) connection 2 Chilled water inlet Chilled water outlet LGN Circuit / /8 Circuit 2 Weight (kg) 3 1 5/ /8 DN 125 VICTAULIC empty in operation HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B 21

22 Dimensions n DYNACIAT Power LGN 1800V to 2400V 996 A E 161±10 Door opening Ouverture de la porte ±4 663±4 P P P P Wooden blocks Cales bois X X E Circuit 1 Circuit 2 LGN / / / /8 DN 150 VICTAULIC Electrical connection on the side Noise insulation panels option Discharge pipe(s) connection - Fluid return pipe(s) connection Chilled water inlet Chilled water outlet Weight (kg) empty in operation HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B

23 Schematic installation diagram LGN series n Installation with CIAT OPERA-type separate air-cooled condenser L A J E G H C I K K F B D DYNACIAT Power LGN L A E I C G H I K D B F K J J A : Chilled water circuit B : Control valve C : Water top-up D : Expansion vessel E : Hydraulic safety valve F : G : H : I : J : Drain Shut-off valve Water filter (Compulsory) Flexible connections Refrigerant safety valve K : Temperature measuring well L : Communication BUS connection (RS485) between drycooler controller and chiller N.B.: the system schematic diagrams are provided for information purposes only; under no circumstances do they constitute a model for installation. HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B 23

24 Installation recommendations n Water quality criteria to be respected N.B.: It is essential that an 800 micron water filter be placed on the unit's water inlet during installation. The quality of the water used has a direct impact on the correct and compliant operation of the water chiller and its service life. This is particularly true if the water used clogs or corrodes components or promotes the growth of algae or micro-organisms. The water must be tested to determine whether it is suitable for the unit and whether chemical treatment will suffice to make it of acceptable quality and if a water softening/demineralising system should be installed. The results of the analysis must confirm whether the site's water is compatible with the various materials used on the CIAT unit's circuit: % copper tubes brazed with copper and silver, - threaded bronze couplings or flat steel flanges, depending on the unit model, - plate heat exchangers and AISI 316/DIN stainless steel connections brazed with copper and silver. N.B.: The guarantee shall be void if these instructions are not followed. n Lifting and handling The utmost safety precautions must be taken when lifting and handling the unit. Always follow the lifting diagram affixed to the unit and the installation, operation, commissioning and maintenance manual. Before attempting to lift the unit, make sure the path leading to its intended location is free from obstacles. Always keep the unit vertical when moving it. Never tip it or lie it on its side. n Choosing a location for the unit DYNACIAT POWER units are designed for installation in a machine room. Precautions should be taken to protect it from freezing temperatures. Special attention should be paid to ensure sufficient free space (including at the top) to allow maintenance. The unit must be placed on a perfectly level, fireproof surface strong enough to support it once charged. Noise pollution from auxiliary equipment such as pumps should be studied thoroughly. Depending on the room and its structure, potential noise transmission routes should be studied, with assistance from an acoustical engineer if necessary, before installing the unit. Flexible couplings MUST be placed over pipes (available as options). n Machine room ventilation According to the regulations in force in the place in which the machine is to be installed, the machine room must comply with certain ventilation rules for fresh air to ensure there is no risk of discomfort or hazard in the event of a refrigerant leak. n Assembly of separately supplied accessories: A number of optional accessories may be delivered separately and installed on the unit on site. Always follow the instructions in the user manual (Installation, Operation, Commissioning and Maintenance). n Electrical connections: Always follow the instructions in the user manual (Installation, Operation, Commissioning and Maintenance). All information concerning electrical connections is stated on the wiring diagrams provided with the unit. Always follow this information to the letter. Electrical connections must be made in accordance with best current practices and applicable standards and regulations. Electrical connections to be made on site: unit's electrical supply, outdoor operation authorisation (optional) information feedback (option). It should be noted that the unit's electrical system is not protected against lightning strikes. Therefore components to protect against transient voltage surges must be installed on the system and inside the electrical supply unit. 24 HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B

25 n Pipe connections: Always follow the instructions in the user manual (Installation, Operation, Commissioning and Maintenance) All pipes must be correctly aligned and slope toward the system's drain valve. Pipes must be installed to allow sufficient access to the panels and fitted with heat insulation. Pipe mountings and clamps must be separate to avoid vibrations and placing pressure on the unit. Water shut-off and control valves must be fitted when the unit is installed. - Pipe connections to be made on site:. system water supply with pressure-reducing valve,. evaporator and discharge, - Accessories essential to any hydraulic system must also be installed, such as: - a thermostatically-controlled valve for controlling the flow rate of cooling water placed at the condenser water inlet or outlet.. water expansion vessel,. drain nozzles at pipe low points,. exchanger shut-off valves equipped with filters,. air vents at pipe high points, - check the system's water capacity (install a buffer water tank if necessary),. flexible couplings on exchanger inlets and outlets,. thermometers on each water inlet and outlet to allow all the necessary checks during start-up and maintenance. N.B.: - Pressure in the water circuits below 4.0 bar. - Place the expansion vessel before the pump. - Do not place any valves on the expansion vessel. - Make sure the water circulation pumps are placed directly at the exchanger inlets. - Make sure the pressure of the water drawn in by the circulation pumps is greater than or equal to the required minimum NPSH, particularly if the water circuits are "open". - Test the water quality in accordance with the relevant technical requirements. - Take the necessary precautions to protect the unit and hydraulic system from freezing temperatures (e.g. allow for the possibility of draining the unit). If glycol is added to prevent freezing, check its type and concentration beforehand. - Before making any final hydraulic connections, flush the pipes with clean water to remove any debris in the network. n Refrigerant connections Performance levels are provided for a refrigerant connection between the LGN unit and the OPERA (7 m long). The maximum recommended length is 30 m, with a maximum height difference of 15 m. - Always follow the instructions in the user manual (Installation, Operation, Commissioning and Maintenance). - The pipes are made from refrigeration quality copper and in accordance with accepted engineering practice. - CIAT does not offer this equipment which is designed to be connected to a non-brand condenser or refrigerant connections, nor can CIAT provide system start-up services in this case. - The pipes must be carefully routed taking into account the constraints of the oil return to the compressor and pressure drops which could affect performance levels. n Commissioning Dynaciat machines must be commissioned by CIAT or a CIAT-approved firm. Always follow the instructions in the user manual (Installation, Operation, Commissioning and Maintenance). Partial list of precommissioning checks: - Correct positioning of unit, - Power supply protections, - Phases and direction of rotation, - Wiring connections on unit, - Direction of water flow in unit, - Cleanliness of water circuit, - Adjusting water flow rate to specified value, - Pressure in the refrigeration circuit, - Direction of rotation of compressors, - Water pressure drops and flow rates, - Operating readings. n Maintenance operations Specific preventive maintenance operations must be carried out regularly on the unit by CIAT-approved firms. The operating parameters are read and noted on a "CHECK LIST" form to be returned to CIAT. To do this, always refer to and follow the instructions in the user manual (Installation, Operation, Commissioning and Maintenance). You must take out a maintenance contract with a CIAT-approved refrigeration equipment specialist. Such a contract is required even during the warranty period. HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B 25

26 Air-cooled condensers n Available in a wide range of sizes and 6 fan speeds, OPERA adapts to the dimensional or acoustic constraints of each site. 26 HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B

27 USER-FRIENDLY INTERFACE CONSOLE - LCD display (4 lines of 24 characters each) - Pressure and temperature readings - Diagnosis of operation and fault states - Master/slave control of two machines in parallel - Fault memory management - Pump management - Time schedules - Remote control PRODUCT FUNCTIONALITY 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 - Machine load shedding - System time programming - Energy storage mode management - Unit running time balancing Via dry contact POTENTIAL-FREE (DRY) CONTACTS AVAILABLE AS STANDARD Inlets: - Automatic operation control - Selection of setpoints 1 / 2 - Setpoint adjustable by 4-20 ma signal - Heating/cooling mode selection - Compressor load shedding Outlets: - General fault reporting - Pump control COMMUNICATION Customer CMS Additional outlets available as options: - Water flow fault - Frost protection fault - Pump fault - Fan fault (air-to-water machine) - Low and high pressure fault - Compressor safety fault - Discharge temperature fault - Compressor operating status Via BUS communication OUTLET AS STANDARD - Open ModBus-JBUS RS 485 protocol (standard) - ModBus-ETHERNET TC/IP protocol (standard) - LONWORKS protocol (option) - BACNET protocol (option) CIAT SYSTEM FUNCTIONALITY Communication with Hysys system (generator, transmitter, air handling unit), controlled by an Easy CIATcontrol or Smart CIATcontrol touch tablet. Logging of consumption data and temperatures Optimal Water : optimisation of producer performance based on building requirements Optimal Stop and Start: optimisation of the building restart time Communication with CIAT Energy Pool controlled by Power Control. Integrated Power Control: Energy optimisation of refrigeration and heating using several generators, Manages free cooling capacity Uses heat recovery to supply domestic hot water. Smart CIATControl Power Control HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA B 27