Total and partial heat recovery RANGE. AQUACIAT power LD series. AQUACIAT power LDC - LDH series. AQUACIAT power ILD series

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1 High energy efficiency with R410A Compact and quiet Scroll compressors Brazed-plate heat exchangers Self-adjusting electronic control Cooling capacity: 330 to 500 kw Heating capacity: 340 to 500 kw Cooling only Heat pump Hydraulic module Total and partial heat recovery ENVIRONMENTALLY HFC R410A PROTECTION DE FRIENDLY L'ENVIRONNEMENT USE AQUACIAT power LD - LDC - LDH and ILD - ILDC - ILDH series packaged chilled water or hot water production units are medium-capacity machines specifically designed for heating and air-conditioning applications in one office healthcare, industries administration shopping centres and residential sectors. These packaged units are specifically designed for outdoor installation and require no special protection from adverse weather. They use the outdoor air as the sole transfer medium, which permits the evacuation of heat in summer or the supply of thermal energy for heating in winter. When connected to a radiant floor heating and cooling system, fan coil units or an air handling unit, the ILD - ILDC - ILDH series of reversible AQUACIAT power units makes heating and air conditioning buildings extremely easy. Each unit is delivered fully assembled, wired (control and power), charged with refrigerant and factory tested. Simply make the necessary electrical and hydraulic connections, and your unit is ready to operate. RANGE AQUACIAT power LD series Cooling-only version without hydraulic system. AQUACIAT power LDC - LDH series Cooling-only version with hydraulic system (circulator pump only or pump and buffer tank). AQUACIAT power ILD series Air-to-water reversible heat pumps without hydraulic system. AQUACIAT power ILDC - ILDH series Air-to-water reversible heat pumps with hydraulic system (circulator pump only or pump and buffer tank). 1

2 DESCRIPTION Water chillers Each AQUACIAT power LD - LDC - LDH series cooling-only unit ILD - ILDC - ILDH reversible heat pump is delivered with the following components: - air-cooled condenser with axial fan motor assembly, - chilled-water evaporator (hot-water condenser on reversible models), - chilled-water or hot-water capacity control, - control, automatic operation and startup box:. Electrical power supply: Three-phase AC - 50 Hz V (+6% / -10%) + Earth. Control circuit: Single-phase AC - 50 Hz V (transformers fitted on unit as standard), - casing for outdoor installation. Compliance with European directives - Machinery directive (98/37/EEC) - EMC directive (2004/108/EC) - Low voltage 2006/95/EC - Pressure equipment directive (97/23/EEC, category 2). Compliance with standards - EN 60204, EN (NFC , France). KEY ILD > heat pump version H > hydraulic with pump and buffer tank LD > cooling-only version 1800 > unit size C > hydraulic with pump only V > R410A refrigerant LDC - ILDC 1200 V V Models 2

3 MAIN COMPONENTS Hermetic scroll compressors - Built-in electric motor cooled by suction gas - Motor protected by internal winding thermostat - Placed on anti-vibration mounts. Evaporator - Brazed-plate heat exchangers - AISI 316 stainless steel plates - High-performance, optimised plate patterns - Thermal insulation. Condenser - High-performance air-cooled exchangers, aluminium fins with optimised profiles and grooved copper tubes - Condenser or evaporator mode heat exchanger on ILD-ILDC- ILDH reversible heat pumps - Axial fans with profiled blades - IP54, class F motors. Control functions or safety devices - Water flow control - Thermostatic expansion valves - Refrigerant high and low-pressure safety devices - Temperature and pressure sensors - Evaporator water flow controller - Unit start-up sequence. Electrical box The fully wired electrical box housing 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. Box features: - Control and power circuits, - Wire numbers, - Main safety switch with handle on front, - Control circuit transformer, - Circuit breakers on the power and control circuits, - Compressor motor contactors, - Fan motor contactors, - Main earth connection, - Connect microprocessor-controlled electronic control unit, - Alarm or information signals on free terminals. Casing - Removable galvanised metal panels, - RAL 7024 and RAL 7035 lacquer coating. ELECTRONIC CONTROL UNIT CIAT electronic control module with microprocessor and CPU, with central automatic operation and access to internal operation states. Features - On, off, reset or remote control - Cooling or Heating mode selector - RS485 output for BMS connection - Board adapter for additional dry contacts (option) - Remote-control adapter (option) - Multilingual analogue LCD and LEDs 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 - Self-adjusting and proactive functions with adjustment of settings drift control - Cascade stage system on multiple compressors lowers power based on cooling and heating demands controlled using the water temperatures - Monitoring of internal operation parameters - Second setpoint management - Direct display of water and pressure temperatures - Operating status and fault analysis: HP/LP, water flow, compressor motors, frost protection - Short-cycle protection - Remote management and remote monitoring 3

4 STANDARD OR OPTIONAL EQUIPMENT AQUACIAT power LD LDC-LDH ILD ILDC - ILDH COOLING ONLY HEAT PUMP 400 V/3-ph/50 Hz + Earth with transformer Main disconnect switch Water flow switch Electrical cabinet wire numbers All-season operation (-15 C outdoor minimum) Optimised High Pressure Operation (All-season operation with energy optimisation) - - LOW NOISE version XTRA LOW NOISE version Compressor suction shut-off valves Soft start Fan speed control (-20 C outdoor minimum) Electronic expansion valve - - Frost protection Phase controller (reversal, loss, over and under voltage) Partial heat recovery - Desuperheater Total heat recovery Blygold coated coil Polyurethane coated coil fins Single or double pump (C and H version) - - Low-temperature glycol/water (0 C to -12 C) (1) 800 micron water filter Elastic suspensions Flexible hydraulic couplings Remote control unit (remote control panel) Dry-contact relay board LonWorks gateway Multiconnect multi-unit management Auxiliary electric heating management board (4 stages) - - Container handling equipment Shackles Supplied as standard Factory-fitted option Option supplied as a kit - Not available (1) Supplied as standard for a glycol / water outlet temperature of 0 C to -12 C Note: Some technical options not listed above may be added on special request. Consult us. 4

5 SEASONAL PERFORMANCE Most central air-conditioning systems used in the service industry in Europe use water chillers to produce cold. Until recently, the efficiency of air conditioners in Europe was measured using a single nominal test point under full load, called Energy Efficiency Ratio (EER). However, a unit s efficiency depends on its operating conditions. Analyses of installed systems show that heat load varies from season to season and that a water chiller operates primarily at reduced capacity. The European Seasonal Energy Efficiency Ratio (ESEER) measures the seasonal efficiency of water chillers by taking into account their efficiency under partial load using formulas created by the European certification body Eurovent. Seasonal heat load variations 100 % A 90 % 80 % 70 % B Only 3 months above 75% 60 % 50 % C 40 % 30 % 20 % D 10 % 0 % January February March April May June July August September October November December ESEER = A x EER100% + B x EER75% + C x EER50% + D x EER25% A, B, C and D are weighting factors pertaining to a unit s running time based on its load The ESEER design conditions for air-cooled water chillers are as follows: Unit load Air inlet temperature Chilled water mode Weighting factor 100 % 35 C 12 C / 7 C A= % 30 C 10.8 C / 7 C (*) B = % 25 C 9.5 C / 7 C (*) C = % 20 C 8.3 C / 7 C (*) D = 0.23 (*) Water flow rate = Water flow rate at 100% The efficiency under partial load is therefore essential when choosing a water chiller. It is with this in mind that the new AQUACIAT power range was designed. In particular, the entire range uses R410A refrigerant which, thanks to its extremely high thermodynamic performance, makes it possible to obtain much higher EER and ESEER ratings than with R407C and as much as 25% less electricity consumption. As its compressors are connected in parallel on the refrigeration circuit, AQUACIAT power easily and efficiently adjusts the cooling capacity to system s needs. The self-adjusting CONNECT control anticipates variations in load and turns on only the number of compressors needed. The compressors operate at optimum performance, energy efficiency is extremely high all yearround and, as a result, the system remains energy efficient for most of its life. 5

6 Example of ESEER/EER of the AQUACIAT power range EER CLASSE A CLASSE B CLASSE C CLASSE D CLASSE E CLASSE F 3.02 AQUACIAT power R410A Conventional R407C unit % Cooling capacity in kw Énergy CIAT AQUACIAT power Économical A B C D E F G Not very economical Water chillers B ESEER AQUACIAT power R410A Conventional R407C unit % Cooling capacity in kw 6

7 VERSION WITH HYDRAULIC PACK LDC - LDH - ILDC - ILDH series The All-in-One solution The Plug & Cool solution offered by AQUACIAT power LDC - LDH - ILDC - ILDH The hydraulic module contains all the water circuit components needed for the system to operate correctly: litre insulated buffer tank. (LDH - ILDH only) - Expansion vessel:. 80 liters for LDH - ILDH. 50 liters for LDC - ILDC micron water filter - Wide selection of single and dual pumps for your system s flow and pressure requirements. (1) - Pressure gauges with shut-off valves. - 4 bar safety valve. - Drain line. - Manual and automatic air bleed valve. - System control. LDH - ILDH series hydraulic module - Frost protection (option). The components in the hydraulic system are carefully selected and factory assembled and tested to make the installation of the units simple and economical. Preparation times, implementation times and space requirements are thus kept to a minimum. (1) Our pumps are designed to operate on closed water loops (low NPSH). Please consult us for other applications (open water loop, high NPSH). Valve Butterfly shut-off valve Gauge HYDRAULIC MODULE AQUACIAT power Insulation PIDF Filter (to be added on site) Differential pressure switch OPTIONS : Flexible pipe sleeves (MS) Dual pumps Flange adapter (Victaulic) RE - RT - RMH = option frost protection with thermally insulated hydraulic module EVAPORATORS 1 2 MS RE PIDF FS B1 Outdoor sensor 19 mm Armaflex insulation Auto. air bleed valveaauto. air bleed valve Hot-water tank LDH - ILDH only Water drain valve Manual air bleed valve VASE D EXPANSION 1,5 bar Hose connection 4 bar safety valve RMH B18 - Hydraulic module indoor environment sensor DUAL PUMP OPTION SINGLE PUMP MS WATER OUTLET CUSTOMER CONNECTION WATER INLET CUSTOMER ONNECTION RT MS 7

8 TECHNICAL CHARACTERISTICS - COOLING ONLY AQUACIAT power LD - LDC - LDH 1200 V 1500 V 1650 V 1800 V Cooling capacity 1 kw Power input kw EER/ESEER / / / / 4.39 Lw / Lp 3 (high-performance [HP] version) db(a) 93 / / / / 66 Lw / Lp 3 (Low Noise [LN] version) db(a) 91 / / / / 59 Lw / Lp 3 (XTRA Low Noise [XLN]) db(a) 87 / / / / 56 Compressor Start-up mode Hermetic scroll (2900 rpm) Direct inline cascade Quantity 4 6 Power control No.of stages % Refrigerant oil type Polyol ester Kow 3MAF (32 cst) Oil capacity l No. of refrigerant lines 2 Refrigerant (GWP) R410A (1890) Refrigerant charge Circuit 1 kg Circuit 2 kg Electrical power supply ph/hz/v Three-phase AC - 50 Hz V (+6% / -10%) + Earth Machine protection rating IP44 Control circuit voltage ph/hz/v Single-phase AC - 50 Hz V (+6% / -10%) - transformer fitted Evaporator Brazed-plate heat exchangers Water capacity l Chilled water outlet temp. (min./max.) C -12 / +18 Minimum water flow rate m 3 /h Maximum water flow rate m 3 /h Water connections dia. Victaulic DN 125 Max. pressure, water end bar 10 bar (LOD)/4 bar (LDC-LDH) Air-cooled condenser Finned heat exchanger Fan dia. mm 800 No.x Motor output, high-performance (HP) version kw 6 x x 1.64 Nb x Motor rated power High Performance series - LN - and Xtra Low Noise - XLN kw 6 x x 1.13 Air flow, high-performance (HP) version m 3 /h Air flow, low noise (LN) version and XTRA Low noise ( XLN) version m 3 /h Minimum system water volume l Tank volume, model H l 950 Expansion vessel, C & H l 50 (C version) - 80 (H version) Pump Qty. Based on selection(page 10) Height (excluding mounts) mm 2200 ( 2450 Xtra Low Noise version) Length (standard version) mm Length (version C) mm Length (version H) mm Width mm 2200 Weight (empty, standard version) kg Weight (empty, version C) kg Weight (empty, version H) kg Storage temperature C +50 ➀ High-performance version capacities based on: COOLING: +12 C / +7 C and condenser air inlet temperature of +35 C ➁ Gross EER and ESEER values ➂ Overall sound power level (Lw) overall sound pressure level (Lp) measured at 10 metres in a free field, as per ISO

9 TECHNICAL CHARACTERISTICS - REVERSIBLE HEAT PUMPS AQUACIAT power ILD - ILDC - ILDH 1200 V 1500 V 1650 V 1800 V Cooling capacity 1 kw Power input kw EER / ESEER / / / / 3.92 Heating capacity 1 kw Power input kw COP Lw/ Lp 3 (high-performance [HP] version) db(a) 93 / / / / 66 Lw / Lp 3 (Low Noise [LN] version) db(a) 91 / / / / 59 Lw / Lp 3 (XTRA Low Noise [XLN] version) db(a) 87 / / / / 56 Compressor Hermetic scroll (2900 rpm) Start-up mode Direct inline cascade Quantity 4 6 No.of stages Power control % Refrigerant oil type Polyol ester Kow 3MAF (32 cst) Oil capacity l ,8 No. of refrigerant lines 2 Refrigerant (GWP) R410A (1890) Refrigerant charge Circuit 1 kg Circuit 2 kg Electrical power supply ph/hz/v Three-phase AC - 50 Hz V (+6%/-10%) + Earth Machine protection rating IP44 Control circuit voltage ph/hz/v Single-phase AC - 50 Hz V (+6%/-10%) - transformer fitted Evaporator Brazed-plate heat exchangers Water capacity l Chilled water outlet temp. (min./ max.) C -12 / +18 Hot water outlet temp. (min./ max.) C +30 / +55 Minimum water flow rate m 3 /h Maximum water flow rate m 3 /h Water connections dia. Victaulic DN 125 Max. pressure, water end bar 10 bar (ILD) / 4 bar (ILDC-ILDH) Air-cooled condenser Finned heat exchanger Fan mm 800 No. x Motor output, high-performance (HP) version kw 6 x x 1.64 Nb x Motor rated power High Performance series - LN - and Xtra Low Noise - XLN kw 6 x x 1.13 Air flow, high-performance (HP) version m 3 /h Air flow, low noise (LN) version and XTRA Low noise ( XLN) version m 3 /h Minimum system water volume l Tank volume, model H l 950 Expansion vessel, C & H l 50 (C version) - 80 (H version) Pump Qty. Based on selection (page 10) Height (excluding mounts) mm 2200 ( 2450 Xtra Low Noise version) Length (standard version) mm Length (version C) mm Length (version H) mm Width mm 2200 Weight (empty, standard version) kg Weight (empty, version C) kg Weight (empty, version H) kg Storage temperature C +50 ➀ High-performance version capacities based on: a/ COOLING:+12 C/+7 C and condenser air inlet temperature of +35 C b/ HEATING: hot water outlet at +45 C and outdoor air at +7 C DB, 86% RH ➁ Gross EER, ESEER and COP values ➂ Overall sound power level (Lw) overall sound pressure level (Lp) measured at 10 metres in a free field, as per ISO

10 ELECTRICAL CHARACTERISTICS Basic equipment (pump excluded) AQUACIAT power 1200 V 1500 V 1650 V 1800 V COMPRESSORS (1) Maximum rated current A Starting current (3) A Starting current with Soft Start option (3) A FAN MOTORS (1) HIGH PERFORMANCE version (905 rpm) Maximum rated current A 20.4 (6 x 3.4) 27.2 (8 x 3.4) LOW NOISE - XTRA LOW NOISE versions (715 rpm) Maximum rated current A 12.6 (6 x 2.1) 16.8 (8 x 2.1) LD FROST PROTECTION (OPTION) (2) Evaporator heating element power W 240 Maximum rated current A 1.05 LDC FROST PROTECTION (OPTION) (2) Evaporator heating element power + piping + expansion vessel W 480 Maximum rated current A 2.10 LDH FROST PROTECTION (OPTION) Evaporator heating element power + piping W 360 Maximum rated current A 1.6 (2) Hydraulic module heating element power W 1500 Maximum rated current A 2.3 (1) DESUPERHEATER FROST PROTECTION - CONDENSER TOTAL RECOVERY (OPTION) (2) Heat exchanger heating element power W 240 Maximum rated current A 1.05 REMOTE-CONTROL AUXILIARY CIRCUIT (2) Maximum rated current A 4 5 Transformer power V A (1) Current for 400 V/3-ph/50 Hz. (2) Current for 230 V/1-ph/50 Hz. (3) Starting current of largest compressor + maximum current of other compressors under full load. Hydraulic pumps (version C and H) SINGLE PUMP Number Power kw Maximum rated current A DOUBLE PUMP Number Power kw Maximum rated current A The electric voltage for selecting the main power supply cables is equal to the sum of the maximum rated currents given in the table above. 10

11 COOLING CAPACITIES COOLING ONLY units R410A HIGH-PERFORMANCE - HP LD LDC LDH 1200 V 1500 V 1650 V 1800 V Evaporator water outlet temperature ( C) CONDENSER AIR INLET TEMPERATURE ( C) Pf Pa Pf Pa Pf Pa Pf Pa Pf Pa Pf Pa kw kw kw kw kw kw kw kw kw kw kw kw , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,3 Pf: Acceptable cooling capacity for delta T based on operating limits Pa: Compressor and fan power input required Calculated fouling: m2 C/W EUROVENT conditions 11

12 COOLING CAPACITIES Water chillers COOLING ONLY units R410A LOW NOISE - LN XTRA LOW NOISE - XLN LD LDC LDH 1200 V 1500 V 1650 V 1800 V Evaporator water outlet temperature ( C) CONDENSER AIR INLET TEMPERATURE ( C) Pf Pa Pf Pa Pf Pa Pf Pa Pf Pa Pf Pa kw kw kw kw kw kw kw kw kw kw kw kw , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Pf: Acceptable cooling capacity for delta T based on operating limits Pa: Compressor and fan power input required Calculated fouling: m2 C/W EUROVENT conditions 12

13 COOLING CAPACITIES REVERSIBLE units R410A HIGH-PERFORMANCE - HP ILD ILDC ILDH 1200 V 1500 V 1650 V 1800 V Evaporator water outlet temperature ( C) CONDENSER AIR INLET TEMPERATURE ( C) Pf Pa Pf Pa Pf Pa Pf Pa Pf Pa Pf Pa kw kw kw kw kw kw kw kw kw kw kw kw , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,7 Pf: Acceptable cooling capacity for delta T based on operating limits Pa: Compressor and fan power input required Calculated fouling: m2 C/W EUROVENT conditions 13

14 COOLING CAPACITIES Water chillers REVERSIBLE units R410A LOW NOISE - LN XTRA LOW NOISE - XLN ILD ILDC ILDH 1200 V 1500 V 1650 V 1800 V Evaporator water outlet temperature ( C) CONDENSER AIR INLET TEMPERATURE ( C) Pf Pa Pf Pa Pf Pa Pf Pa Pf Pa Pf Pa kw kw kw kw kw kw kw kw kw kw kw kw , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,4 Pf: Acceptable cooling capacity for delta T based on operating limits Pa: Compressor and fan power input required Calculated fouling: m2 C/W EUROVENT conditions 14

15 HEATING CAPACITIES REVERSIBLE units R410A HIGH-PERFORMANCE - HP ILD ILDC ILDH Outdoor air temperature ( C) DB (1) 1200 V Outdoor air 1500 V Outdoor air 1650 V Outdoor air 1800 V Outdoor air CONDENSER WATER OUTLET TEMPERATURE ( C) Pc Pa Pc Pa Pc Pa Pc Pa Pc Pa Pc Pa kw kw kw kw kw kw kw kw kw kw kw kw , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,6 Pc: Acceptable heating capacity for delta T based on operating limits Pa: Compressor and fan power input Calculated fouling: m 2 C/W EUROVENT conditions (1) Relative humidity variation for calculations: -20 C / 95% RH / +7 C 85% RH / +27 C 50% RH 15

16 HEATING CAPACITIES Water chillers REVERSIBLE units R410A LOW NOISE - LN XTRA LOW NOISE - XLN ILD ILDC ILDH Outdoor air temperature ( C) DB (1) 1200 V Outdoor air 1500 V Outdoor air 1650 V Outdoor air 1800 V Outdoor air CONDENSER WATER OUTLET TEMPERATURE ( C) Pc Pa Pc Pa Pc Pa Pc Pa Pc Pa Pc Pa kw kw kw kw kw kw kw kw kw kw kw kw , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,87 Pc: Acceptable heating capacity for delta T based on operating limits Pa: Compressor and fan power input Calculated fouling: m 2 C/W EUROVENT conditions (1) Relative humidity variation for calculations: -20 C / 95% RH / +7 C 85% RH / +27 C 50% RH 16

17 DEGIPAC DEFROST SYSTEM ILD-ILDC-ILDH DEGIPAC defrost principle This system, present as a standard feature on CIAT s CONNECT control system, makes it possible to defrost in a convenient way a coil of an air/water heat pump. Thanks to a regular examination of several reference parameters in order to estimate the frost cover, such as the evaporating temperature of refrigerant and the outdoor air temperature, DEGIPAC starts the defrost only when it is really necessary, and defines the time just necessary to a perfect defrosting of fins of the air coil exchanger. Compared with a traditional defrosting cycle with timer, DEGIPAC offers an improvement of 5% thus on average of the seasonal COP and it makes it possible to divide by 2 the number of defrosts over one season. The result is an increased reliability of the heat pumps as well as an excellent optimization of the cycles frequency by privileging the cold and wet periods. COP gain 115 % 110 % 105 % 100 % 95 % 90 % 06-february Standard 13-february 20-february 27-february DEGIPAC 06-march 13-march 20-march AUXILIARY HEATING MANAGEMENT In function of the outdoor temperature and of the heating capacity required in winter, an additional extra heating system can be used in addition to the thermodynamic heat pump AQUACIAT power. Three running conditions are possible on HEATING mode : - thermodynamic heating only (heat pump), - thermodynamic with some electric heaters in addition, - water heating only with all electric heaters. These electric water heaters can be of external supply, or a CIAT supply like the electric loop heater or the ME electric water heater modules, and up to a maximum of 4 capacity stages. Heating output in kw Boiler only Boiler operating Heat pump + boiler Heat pump operating Heat pump Decrease of the house 5 d. 26 d. 66 d. 112 d. 21 d. -15 C -5 C 0 C 5 C 15 C 25 C External temperature days Period of season of stocking (different values following regions) climatic zone H1 (Lyon - French) AUXILIARY HEATING MANAGEMENT BOARD The auxiliary heating management board is an optional accessory allowing to a reversible AQUACIAT power machine the control of 4 additional capacity stages in HEATING mode. This optional board is fitted on the units in the factory. 17

18 LD - ILD (H - C) SERIES DESUPERHEATER (HEAT EXCHANGER) Heat from gases released by the compressors can be recovered directly by a type of heat exchanger - called a desuperheater - on an AQUACIAT power unit to produce free, additional hot water. On reversible units, the desuperheater option can be used in both heating and cooling modes. This optional configuration requires assembly in our factories. Refrigeration circuit diagram The refrigeration diagram opposite illustrates a 1200 size reversible unit with a desuperheater on each refrigeration circuit. For heat recovery to be possible, the unit must be operating in cooling or heating mode. For the same cooling or heating capacity, the desuperheater provides a source of free hot water and lowers the unit s electrical power consumption. Water Desuperheater Discharge Oil HP Compressor 1 HP BP BP Compressor 2 Evaporator Water Hydraulic connections: configuration and precautions To ensure that the unit is commissioned and operates under the right conditions, the desuperheater water loop must be as short as possible. This will ensure that warmup is gradual with a water flow rate of 10% its nominal value and that the nominal flow rate of the return water at the desuperheater inlet is +50 C. We therefore recommend a hydraulic circuit configuration that makes it possible to achieve superheated water in the desuperheater very quickly (three-way valve + thermostat + sensor on desuperheater water inlet) de Air-cooled condenser s m e 50 C min. a 50 C v3v Domestic hot water circuit The thermostat setpoint must be at least +50 C. Desuperheater option Comment: special attention should be paid when selecting the expansion vessel, as the temperature of the recovery water circuit can reach 120 C if the accelerator pump is turned off or if no hot water is consumed. a: Shut-off valve e: Expansion vessel de: Desuperheater m: Gauge s: Safety valve v3v: Three-way valve Example of recovery with a desuperheater AQUACIAT power Recovery Water flow rate Pressure drop Cooling capacity Power input Cr (kw) qv (m 3 /h) Pd (mwc) Cc (kw) Pi (kw) 1200 V 88 15,1 3, , V 98 16,8 3, , V ,3 2, , V ,7 3, ,2 Note: recovery performance is based on LD cooling-only models: unit under full load in cooling mode and under nominal conditions (chilled water: +12 C / +7 C; outdoor air: +35 C). recovery hot water temperatures of +55 C / +60 C 18

19 CAPACITIES WITH PARTIAL HEAT RECOVERY COOLING ONLY units R410A HIGH-PERFORMANCE - HP LD LDC LDH 1200 V 1500 V 1650 V 1800 V Desuperheater water temperature ( C) 50 C / 55 C 55 C / 60 C 50 C / 55 C 55 C / 60 C 50 C / 55 C 55 C / 60 C 50 C / 55 C 55 C / 60 C Evaporator water outlet temp. ( C) CONDENSER AIR INLET TEMPERATURE ( C) Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,5 Pf: Acceptable cooling capacity for delta T based on operating limits Pa: Compressor + fan input power Pde: Heating capacity recovered in desuperheater Qde : Water flow rate in desuperheater 19

20 CAPACITIES WITH PARTIAL HEAT RECOVERY COOLING ONLY units R410A LOW NOISE - LN XTRA LOW NOISE - XLN LD LDC LDH 1200 V 1500 V 1650 V 1800 V Desuperheater water temperature ( C) 50 C / 55 C 55 C / 60 C 50 C / 55 C 55 C / 60 C 50 C / 55 C 55 C / 60 C 50 C / 55 C 55 C / 60 C Evaporator water outlet temp. ( C) CONDENSER AIR INLET TEMPERATURE ( C) Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde Pf Pa Pde Qde kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h kw kw kw m 3 /h , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,5 Pf: Acceptable cooling capacity for delta T based on operating limits Pa: Compressor + fan input power Pde: Heating capacity recovered in desuperheater Qde : Water flow rate in desuperheater 20

21 LD (H - C) SERIES - TOTAL RECOVERY WITH A HEAT EXCHANGER Free, additional hot water is produced at medium temperature by adding an air-cooled condenser to each circuit. The air-cooled condenser is placed upline of the air-cooled condenser on each circuit to recover all the heat released by the unit. This option is available on cooling-only version units only. Refrigeration circuit diagram The refrigeration diagram opposite illustrates a 1200 size cooling-only unit equipped with a water-cooled heatrecovery condenser on each refrigeration circuit. For heat recovery to be possible, the unit must be operating. For the same cooling capacity, the heat-recovery condenser provides a source of free hot water and lowers the unit's electrical power consumption. Discharge Water Water-cooled condenser HP Oil Compressor 1 HP BP BP Evaporator Water Compressor 2 Hydraulic connections: configuration and precautions To ensure that the unit is commissioned and operates under good conditions, the recovery condenser water loop must be as short as possible. This will ensure that warmup is gradual and, in turn, ensure that the water inlet temperature is always at least +20 C. We therefore recommend a hydraulic circuit configuration that makes it possible to achieve hot water at this temperature in the heat-recovery condenser (three-way valve + thermostat + sensor on heat-recovery condenser water inlet. This will ensure that warm-up is gradual and, in turn, ensure that the water inlet temperature is always at least +20 C. Comment: Special attention should be paid when selecting the expansion vessel, as the temperature of the recovery water circuit can reach 120 C if the accelerator pump is turned off or if no hot water is consumed. cd Air-cooled condenser m Option: Recovery condenser 20 C min a: Shut-off valve e: Expansion vessel cd: Water-cooled condenser s e a 20 C v3v Domestic hot water circuit m: Gauge s: Safety valve v3v: Three-way valve Example of recovery with a condenser AQUACIAT power Recovery Water flow rate Pressure drop Cooling capacity Power input Cr (kw) qv (m 3 /h) Pd (mwc) Cc (kw) Pi (kw) 1200 V , , V , , V , , V , ,6 Note: recovery performance is based on LD cooling-only models: unit under full load in cooling mode and under nominal conditions (chilled water: +12 C/+7 C; outdoor air: +35 C). recovery hot water temperatures of +40 C / +45 C 21

22 CAPACITIES WITH TOTAL RECOVERY COOLING ONLY units R410A LD LDC LDH 1200 V 1500 V 1650 V 1800 V Evaporator water outlet temperature ( C) CONDENSER WATER OUTLET TEMPERATURE ( C) Pf Pa Pre Pf Pa Pre Pf Pa Pre Pf Pa Pre Pf Pa Pre kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Pf: Acceptable cooling capacity for delta T based on operating limits Pai: Compressor power input Pre: Acceptable recovered heating capacity for delta T based on operating limits required Calculated fouling: m 2 C/W 22

23 SOUND LEVELS The distinguishing feature of the AQUACIAT power range is its rigorous design incorporating noiseless assembly techniques which reduce vibration and noise. Compressors on anti-vibration mounts Pipes dissociated from body of unit Low-speed fans Automatic air-flow adjustment Units on anti-vibration mounts (option) HIGH-PERFORMANCE versions - HP Sound power levels ref. 2x10-12 Pi ± 3 db AQUACIAT power SOUND POWER LEVEL SPECTRUM (db) Overall power level Lw 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz db(a) 1200 V V V V Sound pressure levels ref. 2x10-5 Pi ± 3 db Measurement conditions: in a free field, 10 metres from machine, 1.50 metres from ground, directivity 2 AQUACIAT power SOUND PRESSURE SPECTRUM (db) Overall pressure level Lp 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz db(a) 1200 V V V V LOW NOISE versions - LN Sound power levels ref. 2x10-12 Pi ± 3 db AQUACIAT power SOUND POWER LEVEL SPECTRUM (db) Overall power level Lw 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz db(a) 1200 V V V V Sound pressure levels ref. 2x10-5 Pi ± 3 db Measurement conditions: in a free field, 10 metres from machine, 1.50 metres from ground, directivity 2 AQUACIAT power SOUND PRESSURE SPECTRUM (db) Overall pressure level Lp 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz db(a) 1200 V V V V NOTE: Sound pressure levels depend on 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. As per ISO 3744: Lp = Lw - 10 log S 23

24 XTRA LOW NOISE versions - XLN Sound power levels ref. 2x10-12 Pi ± 3 db AQUACIAT power SOUND POWER LEVEL SPECTRUM (db) Overall power level Lw 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz db(a) 1200 V V V V Sound pressure levels ref. 2x10-5 Pi ± 3 db Measurement conditions: in a free field, 10 metres from machine, 1.50 metres from ground, directivity 2 AQUACIAT power SOUND PRESSURE SPECTRUM (db) Overall pressure level Lp 125 Hz Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz db(a) 1200 V V V V NOTE: Sound pressure levels depend on 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. As per ISO 3744: Lp = Lw - 10 log S Models LDH - ILDH 1200V V XTRA LOW NOISE version 24

25 EVAPORATOR LIMITS The curves show the minimum and maximum allowable temperature differences for chilled water or glycol/water solution based on the outlet temperature. Example: For a water outlet temperature of +5 C Minimum difference: 2.6 C Water temperature: 7.6/5 C Maximum difference: 6 C Water temperature: 11/5 C ΔT calculation in performance tables If the temperature difference calculated is outside the two curves, consult us. ΔT acceptable water inlet/outlet temp. diff. ( C) Brazed-plate evaporator ΔT maximum ΔT minimum Water outlet temperature ( C) GLYCOL/WATER MIXTURE COEFFICIENTS 30% concentration by weight of glycol (MEG) 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) Values corrected using the above calculations: Ccc: corrected cooling capacity Qc: corrected flow rate (chilled water or hot water) DHc: corrected water pressure drop (evaporator or condenser) CONDENSER LIMITS (TOTAL RECOVERY) AQUACIAT power LD - LDH - LDC ΔT minimum C 5 ΔT maximum C 10 Evaporator Recovery condenser Evaporator + Recovery condenser CORRECTION POSITIVE TEMP. NEGATIVE TEMP. K Calc. method K Calc. method Cooling cap. 0,98 Pfc = Pf x 0,98 1,00 See sel. table Chilled water flow rate 1,05 Pcf x 0.86 Qc = x 1,05 ΔT 1,10 Pcf x 0.86 Qc = x 1,10 ΔT Water pressure 1,15 ΔPc = ΔP x 1,15 1,30 ΔPc = ΔP x 1,30 drop Avg. temp. gr. 12 / 7 C See operating limits Cooling cap. 0,97 Pfc = Pf x 0,97 Hot water flow rate (Pcf+Pa) x ,05 Qc = x 1,05 ΔT RPW 1,10 ΔPc = ΔP x 1,10 Avg. temp. gr. 35 / 40 C Cooling cap. 0,95 Pfc = Pf x 0,95 0,97 Pfc = Pf x 0,97 Chilled water flow rate Water pressure drop in evaporator Hot water flow rate Water pressure drop in condenser 1,05 Pcf x 0.86 Qc = x 1,05 ΔT 1,10 Pcf x 0.86 Qc = x 1,10 ΔT 1,15 ΔPc = ΔP x 1,15 1,30 ΔPc = ΔP x 1,30 (Pcf+Pa) x ,05 Qc = x 1,05 ΔT (Pcf+Pa) x ,05 Qc = x 1,05 ΔT 1,10 ΔPc = ΔP x 1,10 1,10 ΔPc = ΔP x 1,10 MINIMUM WATER VOLUME (COOLING MODE) The Connect controller uses anticipation logic making it particularly flexible in adjusting operation to changes in settings, particularly on low-volume hydraulic systems. By adjusting compressor running times, it prevents short-cycle protection cycles from starting and, in most cases, eliminates the need for a buffer tank. AQUACIAT power 1200 V 1500 V 1650 V 1800 V min. system capacity (litres) Comment: A buffer tank may be installed on systems used in industrial processes that may require highly stable water temperatures or on systems with highly fluctuating heat loads. In the case of heat pumps, the drop in water temperature caused by defrosting must be factored into the volume of the hot water tank. 25

26 OPERATION RANGE (AT FULL CAPACITY) Cooling only SELF-ADJUSTING Outdoor temperature ( C) DB Glycol required Evaporator water outlet ( C) Operation with fan speed control option Heat pump Operation in Cooling mode SELF-ADJUSTING Operation in Heating mode Outdoor temperature ( C) DB Glycol required Température extérieure C BS Evaporator water outlet ( C) Condenser water outlet ( C) Total recovery Condenser water outlet ( C) SELF-ADJUSTING Glycol required Evaporator water outlet ( C) 26

27 HYDRAULIC SPECIFICATIONS Water pressure drop: LD - ILD evaporator Resistance to the passage of water (mwc) V 1500 V 1650 V V Water flow rate (m 3 /h) Water pressure drop: LD - ILD filter Resistance to the passage of water (mwc) Water flow rate (m 3 /h) Do not extrapolate the curves. Always stay within minimum and maximum flow rate values. 27

28 HYDRAULIC SPECIFICATIONS Water pressure drop: Evaporator + water circuit (LDH - LDC - ILDH - ILDC) 20 Manometric head of pumps (mwc) Resistance to the passage of water (mwc) Pump selection Water flow rate (m 3 /h) Nos. 102 to 112: single pumps Nos. 202 to 212: dual pumps Water flow rate (m 3 /h) 1200 V 1500 V 1650 V V Do not extrapolate the curves. Always stay within minimum and maximum flow rate values. 28

29 HYDRAULIC SPECIFICATIONS Water pressure drop: LD - LDH - LDC recovery condenser Resistance to the passage of water (mwc) V 1500 V 1650 V V Water flow rate (m 3 /h) Water pressure drop: LD - LDH - LDC - ILD - ILDH - ILDC desuperheater Resistance to the passage of water (mwc) Water flow rate (m 3 /h) 1200 V 1500 V 1650 V-1800 V Do not extrapolate the curves. Always stay within minimum and maximum flow rate values. 29

30 DIMENSIONS: LD - I LD AQUACIAT power 1200 V V 4260 door opening approx. 800 mm 2450 ** 2260 a d f 450 b c e D dia mm holes for fastening to ground 299 B 2414 A C 30 AQUACIAT power A B C D (I)LD 1200 V (I)LD 1500 V Desuperheater Total recovery AQUACIAT power 1650 V V 5620 door opening approx. 800 mm 2450 ** 2260 a d f 450 b c e D dia mm holes for fastening to ground 299 B 3779 A C 30 (I)LD 1650 V (I)LD 1800 V AQUACIAT power A B C D Desuperheater Total recovery AQUACIAT power Chilled water Desuperheater hot water or Total recovery hot water LD ILD inlet outlet inlet outlet inlet outlet Weight kg Weight kg a b c - e d - f c - e d - f empty in operation empty in operation (I)LD 1200 V (I)LD 1500 V VICTAULIC VICTAULIC VICTAULIC VICTAULIC G2 male G2 male (I)LD 1650 V DN 125 DN 125 DN 100 DN (I)LD 1800 V ** XTRA LOW NOISE version only NOTE: Optional brazed-plate desuperheater for cooling-only and reversible versions. Optional brazed-plate total-recovery condenser for cooling-only versions only. 30

31 DIMENSIONS LDH - ILDH AQUACIAT power 1200 V V 2450 ** dia mm holes for fastening to ground b a 4700 d c B 2414 f e A door opening approx. 800 mm D C 30 AQUACIAT power A B C D (I)LDH 1200 V (I)LDH 1500 V Desuperheater Total recovery AQUACIAT power 1650 V V 6655 door opening approx. 800 mm 2450 ** b 450 a d c f e D dia mm holes for fastening to ground B 3779 A C 30 (I)LDH 1650 V (I)LDH 1800 V AQUACIAT power A B C D Desuperheater Total recovery AQUACIAT power Chilled water Desuperheater hot water or Total recovery hot water LDH ILDH inlet outlet inlet outlet inlet outlet Weight kg Weight kg a b* c - e d - f c - e d - f empty in operation empty in operation (I)LDH 1200 V DN 65 (1) (I)LDH 1500 V VICTAULIC VICTAULIC VICTAULIC ou G2 male G2 male (I)LDH 1650 V DN 125 DN 100 DN (I)LDH 1800 V DN80 (2) * Connections b based on pump selected: (1) Pumps No (2) Pumps No ** XTRA LOW NOISE version only NOTE: Optional brazed-plate desuperheater for cooling-only and reversible versions. Optional brazed-plate total-recovery condenser for cooling-only versions only. 31

32 DIMENSIONS LDC - ILDC AQUACIAT power 1200 V V 4260 door opening approx. 800 mm 2450 ** b dia mm holes for fastening to ground a d c B 2414 f e A C D 30 (I)LDC 1200 V (I)LDC 1500 V AQUACIAT power A B C D Desuperheater Total recovery AQUACIAT power 1650 V V 5620 door opening approx. 800 mm 2450 ** 2260 b a d c f e D dia mm holes for fastening to ground 299 B 3779 A C 30 (I)LDC 1650 V (I)LDC 1800 V AQUACIAT power A B C D Desuperheater Total recovery AQUACIAT power Chilled water Desuperheater hot water or Total recovery hot water LDC ILDC inlet outlet inlet outlet inlet outlet Weight kg Weight kg a b* c - e d - f c - e d - f empty in operation empty in operation (I)LDC 1200 V DN 65 (1) (I)LDC 1500 V VICTAULIC VICTAULIC VICTAULIC ou G2 male G2 male (I)LDC 1650 V DN 125 DN 100 DN (I)LDC 1800 V DN80 (2) * Connections b based on pump selected: (1) Pumps No (2) Pumps No ** XTRA LOW NOISE version only NOTE: Optional brazed-plate desuperheater for cooling-only and reversible versions. Optional brazed-plate total-recovery condenser for cooling-only versions only. 32

33 ANTI-VIBRATION MOUNTS (OPTION) AQUACIATpower Anti-vibration mounts must be installed beneath the unit for applications that generate extremely low vibrations. The mounts must be placed at the locations illustrated below LD 1200 V V - 3 V LD 1650 V V - 4 V ANTI-VIBRATION MOUNT 50 x 700 x 25 ANTI-VIBRATION MOUNT 50 x 700 x LDH 1200 V V - 3 V LDH 1650 V V - 4 V ANTI-VIBRATION MOUNT 50 x 700 x 25 ANTI-VIBRATION MOUNT 50 x 700 x LDC 1200 V V - 3 V LDC 1650 V V - 4 V ANTI-VIBRATION MOUNT 50 x 700 x 25 ANTI-VIBRATION MOUNT 50 x 700 x 25 FIXING OF FRAMES TO GROUND AQUACIAT LD - LDC - LDH - ILD - ILDH L V 1500 V 1650 V 1800 V Hydraulic module side L7 L8 L9 L8 L1 L3 Top view of FRAME L6 L4 L5 Ø 20,2 L Electrics box side LD - ILD - LDC - ILDC - LDH - ILDH version L L L L L L L LDH - ILDH version only (hydraulic module) L L L Suggested translation for "Ground fixation": The frame may be mounted to the ground (bolts not supplied by CIAT). The hardness is to be defined based on the weight and centre of gravity of the unit. 33

34 EXAMPLES OF HYDRAULIC CONNECTION DIAGRAMS pe c a psl s m e r p FS vr FS t v3v v b air-to-water reversible unit psl : zero pump water pressure switch v3v : three-way valve v2v : two-way valve e : expansion vessel c : retaining valve m : gauge a : water filling b r vr s pe t FS : er tank : shut-off valve : control valve : safety valve : accelerator pump : temperature sensor pocket : water flow switch General comments: p: air vents at pipe high points v: drain nozzles at pipe low points Note: The principle diagrams herein are provided for information only. Under no circumstances do they constitute actual installation diagrams. AQUACIAT power Installation recommendations Water quality requirements Important: A 800 micron water filter must be placed on the unit s water inlet during installation. The quality of the water used has a direct impact on the correct operation of the unit and its service life. This holds particularly true if the water used may clog or corrode components or promote the growth of algae or microorganisms. The water must be tested to determine whether it is suitable for the unit, and whether it will have to be chemically treated, or if a water softening/demineralising system will have to be installed. The results of the test must confirm whether the water is compatible with the following various materials used on the unit: % copper tubes brazed with copper and silver, - threaded bronze couplings or flat steel flanges, depending on the unit model, - plate heat exchangers and connections made of AISI 316/DIN stainless steel brazed with copper and silver. Important: Failure to follow these instructions will result in the immediate voiding of the unit warranty. Lifting and handling The utmost safety precautions must be taken when lifting and handling the unit. Always follow the lifting diagram on the unit and in 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 place it on its side. Location The standard version of AQUACIATpower is designed for outdoor installation. 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. 34

35 The unit must be placed on a perfectly level, fireproof surface strong enough to support it once charged. Care must be taken to keep noise generated by equipment to a minimum. Contact an acoustical engineer to determine, and mitigate, the various sources of noise in the room where the unit will be installed. Flexible couplings must be placed over pipes (available as options). Reversible units installed in areas of snowfall or heavy frost should be raised approx. 300 mm off the floor or ground. Assembly of separately supplied accessories: A number of optional accessories may be delivered separately and installed on the unit at its location. Always follow the instructions in the installation, operation, commissioning and maintenance manual. Electrical connections Always follow the instructions in the installation, operation, commissioning and maintenance manual. All information concerning electrical connections is stated on the wiring diagrams provided with the unit. Always follow this information. Electrical connections must be made in accordance with best current practices and applicable standards and regulations. Electrical connections to be made on site:. unit electrical power supply. outdoor operation authorisation (optional). information feedback (option) It should be noted that the unit s electrical system is not protected against lightning strikes. Components to protect against transient voltage surges must be installed on the system and inside the electrical power supply unit. Pipe connections Always follow the instructions in the installation, operation, commissioning and maintenance manual. 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 hangers 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, condenser and drain - The following are a few examples of accessories essential to any hydraulic system and which must also be installed:. thermostatically controlled valve on the condenser water outlet to regulate the flow of cooling water (heat pump in heating mode). 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 content (install a buffer water tank if necessary). flexible couplings on exchanger inlets and outlets,. manual flow rate control valves. thermometers on each water inlet and outlet to allow all the necessary checks during start-up and maintenance Important: - Pressure in the water circuits below 4 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. - Protect the unit and hydraulic system from freezing temperatures (such as by including a drain). 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. Commissioning AQUACIAT power units must be commissioned by CIAT or a CIAT-approved firm. Always follow the instructions in the installation, operation, commissioning and maintenance manual. Partial list of precommissioning checks: - Correct positioning of unit, - Power supply protections, - Phases and direction of rotation, - Wiring connections on unit, - Direction of flow in unit, - Cleanliness of water circuit, - Water flow rate at specified value, - Pressure in the refrigeration circuit, - Direction of rotation of compressors, - Water pressure drops and flow rates, - Operating readings. Maintenance Specific preventive maintenance operations must be regularly performed on the unit by CIAT-approved firms. The unit s operating readings are to be recorded on a checklist to be sent to CIAT. Refer to and follow the relevant instructions in the installation, operation, commissioning and maintenance manual. You must take out a maintenance contract with a CIATapproved refrigeration equipment specialist. Such a contract is required even during the warranty period. 35

36 CONNECT CONTROL Water chillers USER-FRIENDLY INTERFACE CONSOLE - Multilanguage LCD (2 lines of 20 characters each) - Pressure and temperature readings - Pump management - Communication Available voltage-free contact inputs and outputs: Inputs: - Automatic operation control - Selection of setpoints 1/2 - Heating/Cooling mode selection - Compressor load shedding Outputs: - General fault display - Pump control. RS-485 OUTPUT AS STANDARD MODBUS-JBUS open Protocol (standard) LONWORKS Protocol (option) RELAY BOARD (OPTION) Available outputs: - Water flow fault - Frost protection fault - Pump fault - Fan fault - Low and high pressure fault - Compressor safety fault - Discharge temperature fault - Compressor operation fault REMOTE-CONTROL UNIT (OPTION) Operation and design same as display console MULTICONNECT MULTI-UNIT MANAGEMENT (OPTION) 1200 à 1800 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 This document is non-contractual.as part of its policy of continual product improvement, CIAT reserves the right to make any technical modification it feels appropriate without prior notification. Head office 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