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Carrier AQUASNAP 30RBM Series Installation, Operation And Maintenance Instructions

Air-cooled liquid chillers
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INSTALLATION, OPERATION AND
M A I N T E N A N C E
I N S T R U C T I O N S
Unit with low noise level option
Air-Cooled Liquid Chillers
30RBM 160-520
30RBP 160-520
Nominal cooling capacity 164 - 528 kW 50 Hz
Translation of the original document

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  Summary of Contents for Carrier AQUASNAP 30RBM Series

  • Page 1 INSTALLATION, OPERATION AND M A I N T E N A N C E I N S T R U C T I O N S Unit with low noise level option Air-Cooled Liquid Chillers 30RBM 160-520 30RBP 160-520 Nominal cooling capacity 164 - 528 kW 50 Hz Translation of the original document...
  • Page 2: Table Of Contents

    CONTENTS 1 - INTRODUCTION ..................................4 1.1 - Safety considerations related to protection devices ........................4 1.2 - Refrigerant safety considerations ..............................5 1.3 - Installation safety considerations ..............................7 1.4 - Maintenance safety considerations .............................7 1.5 - Repair safety considerations ................................8 2 - RECEIPT OF GOODS ..................................9 2.1 - Check equipment received ................................9 3 - HANDLING AND POSITIONING ............................9 3.1 - Handling ......................................9...
  • Page 3 11 - MAIN COMPONENTS OF THE UNIT AND OPERATING CHARACTERISTICS...........44 11.1 - Compressors....................................44 11.2 - Lubricant ....................................44 11.3 - Air-cooled exchanger ................................44 11.4 - Fans ......................................45 11.5 - Electronic expansion valve (EXV) ............................46 11.6 - Moisture indicator ..................................46 11.7 - Filter drier ....................................46 11.8 - Water type heat exchanger ...............................46 11.9 - Refrigerant ....................................46 11.10 - High-pressure safety pressostat .............................46...
  • Page 4: Introduction

    1 - INTRODUCTION Classification and control: The units are intended to cool water for building air In accordance with the Pressure Equipment Directive and conditioning or for industrial processes. national usage monitoring regulations in the European Union, the protective devices fitted to these units are classified as They are designed to provide a very high level of safety and follows: reliability, making installation, start-up, operation and...
  • Page 5: Refrigerant Safety Considerations

    1.2 - Refrigerant safety considerations Provide a drain in the discharge pipework, close to each relief valve, to avoid an accumulation of condensate or rain water. Use safety goggles and safety gloves. It is recommended to install an indicating device to check All precautions concerning handling of refrigerant must be whether some of the fluid has leaked from the relief valve.
  • Page 6 NOTE: ► All interventions on this product's refrigerating If a liquid line valve is present, never leave refrigerant in liquid circuit must be performed in accordance with form between this closed valve and the expansion valve as the applicable legislation. Within European change in temperature may cause the liquid to expand, Union, this legislation notably includes regulation...
  • Page 7: Installation Safety Considerations

    1.3 - Installation safety considerations Repair: Any repair or modification, including replacement of After the unit has been received, and before it is started up, removable parts: it must be inspected for damage. Check that the refrigerant • Must comply with local regulations and must be circuits are intact, especially that no components or pipes have performed by qualified operators in accordance with shifted or been damaged (e.g.
  • Page 8: Repair Safety Considerations

    components or opening a circuit. When the refrigerant circuit Even if the unit has been shut down, the power circuit is opened to repair, see the blanketing recommendations in remains energized, as long as the unit or circuit disconnect the "Maintenance safety considerations" paragraph. switch is not open.
  • Page 9: Receipt Of Goods

    2 - RECEIPT OF GOODS 3 - HANDLING AND POSITIONING 2.1 - Check equipment received 3.1 - Handling Check that the unit and the accessories have not been damaged It is strongly recommended that a specialised lifting company during transport and that no parts are missing. If the unit and is employed to unload the machine.
  • Page 10: Positioning

    3.2 - Positioning The machine must be installed in a place that is not accessible to the public, or protected against access by non-authorised persons. For extra-high units, the unit environment must permit easy access for maintenance operations. For the centre of gravity coordinates, the position of the unit mounting holes, and the weight distribution points, refer to the certified dimensional drawings.
  • Page 11: Dimensions, Clearances

    4 - DIMENSIONS, CLEARANCES 4.1 - 30RBM/RBP 160-260 WITHOUT Hydraulic module 30RBP only Power connection Key: All dimensions are in mm. Clearances required for maintenance and air flow Clearance recommended for coil removal Water inlet Water outlet Air outlet, do not obstruct Control box NOTE: Non-contractual drawings. When designing a system, refer to the certified dimensional drawings provided with the unit or WITH Hydraulic module available on request.
  • Page 12 WITH WATER BUFFER TANK MODULE Partial heat recovery only (OPT) Desuperheater (OPT) Key: All dimensions are in mm. Clearances required for maintenance and air flow Clearance recommended for coil removal Water inlet Water outlet Air outlet, do not obstruct Control box NOTE: Non-contractual drawings. When designing a system, refer to the certified dimensional drawings provided with the unit or available on request.
  • Page 13: 30Rbm/Rbp 430-520

    4.2 - 30RBM/RBP 300-400 WITHOUT Hydraulic module 30RBP only Sizes 360-400 Power connection Key: All dimensions are in mm. Clearances required for maintenance and air flow Clearance recommended for coil removal Water inlet Water outlet Air outlet, do not obstruct Control box NOTE: Non-contractual drawings. When designing a system, refer to the certified dimensional drawings provided with the unit or available on request.
  • Page 14 WITH WATER BUFFER TANK MODULE Partial heat recovery only (OPT) Desuperheater (OPT) Key: All dimensions are in mm. Clearances required for maintenance and air flow Clearance recommended for coil removal Water inlet Water outlet Air outlet, do not obstruct Control box NOTE: Non-contractual drawings. When designing a system, refer to the certified dimensional drawings provided with the unit or available on request.
  • Page 15 4.3 - 30RBM/RBP 430-520 WITHOUT Hydraulic module 30RBP only Power connection Size 520 Key: All dimensions are in mm. Clearances required for maintenance and air flow Clearance recommended for coil removal Water inlet Water outlet Air outlet, do not obstruct Control box NOTE: Non-contractual drawings. When designing a system, refer to the certified dimensional drawings provided with the unit or WITH Hydraulic module available on request.
  • Page 16 WITH WATER BUFFER TANK MODULE Partial heat recovery only (OPT) Desuperheater (OPT) Key: All dimensions are in mm. Clearances required for maintenance and air flow Clearance recommended for coil removal Water inlet Water outlet Air outlet, do not obstruct Control box NOTE: Non-contractual drawings. When designing a system, refer to the certified dimensional drawings provided with the unit or available on request.
  • Page 17: Installing Several Units

    4.4 - Installing several units It is recommended to install units in a single row, arranged as shown in the example below, to avoid recycling hot air between the units. 1500 mm 1500 mm min. min. 4.5 - Distance to the wall Plots Anti-vibration Antivibratiles...
  • Page 18: Physical And Electrical Data For The Units

    5 - PHYSICAL AND ELECTRICAL DATA FOR THE UNITS 5.1 - Physical data 30RBM 160-520 30RBM Sound levels Standard unit Sound power dB(A) Sound pressure at 10 m dB(A) Standard unit + option 15 Sound power dB(A) Sound pressure at 10 m dB(A) Standard unit + option 15LS Sound power...
  • Page 19: Physical Data 30Rbp 160-520

    5.2 - Physical data 30RBP 160-520 30RBP Sound levels Standard unit Sound power dB(A) Sound pressure at 10 m dB(A) Standard unit + option 15 Sound power dB(A) Sound pressure at 10 m dB(A) Standard unit + option 15LS Sound power dB(A) Sound pressure at 10 m dB(A)
  • Page 20: Electrical Data 30Rbm 160-520

    5.3 - Electrical data 30RBM 160-520 30RBM Power circuit V-ph-Hz 400 - 3 -50 Nominal voltage 360 - 440 Voltage range 24 V via internal transformer Control circuit supply Nominal unit current draw Circuit A&B Max. operating input power Circuit A&B 0,88 0,87 0,87...
  • Page 21: Electrical Data Notes For The Hydraulic Module

    I- Altitudes above sea level < 1000 II - Ambient air temperature °C < 40 IV - Maximum operating temperature °C Please refer to the operating conditions given in this manual or in the specific conditions given in the Carrier selection programs. V - Potentially explosive atmospheres Non ATEX environment (1) Required by regulation No. 640/2009 concerning the application of directive 2009/125/EC on the eco-design requirements for electric motors. (2) Item number imposed by regulation No. 640/2009, annex I2b. (3) Description given by regulation No. 640/2009, annex I2b. (4) To obtain the maximum input power for a unit with hydraulic module, add the maximum unit input power from the electrical data table to the pump power input. (5) To obtain the maximum operating current draw for a unit with hydraulic module, add the maximum unit current draw from the electrical data table to the pump current draw. (6) Above 1000 m, a degradation of 3% for each 500 m should be taken into consideration.
  • Page 22: Electrical Data Notes For The Compressors

    I- Altitudes above sea level < 1000 II - Ambient air temperature °C < 40 III - Maximum operating temperature °C Please refer to the operating conditions given in this manual or in the specific conditions given in the Carrier selection programs. V - Potentially explosive atmospheres Non ATEX environment (1) Required by regulation No. 640/2009 concerning the application of directive 2009/125/EC on the eco-design requirements for electric motors. (2) Item number imposed by regulation No. 640/2009, annex I2b. (3) Description given by regulation No. 640/2009, annex I2b. (4) To obtain the maximum input power for a unit with hydraulic module, add the maximum unit input power from the electrical data table to the pump power input. (5) To obtain the maximum operating current draw for a unit with hydraulic module, add the maximum unit current draw from the electrical data table to the pump current draw. (6) Above 1000 m, a degradation of 3% for each 500 m should be taken into consideration.
  • Page 23: Electrical Data Notes

    Note: If particular aspects of an actual installation do not conform to the 2. Compatibility for low-frequency conducted disturbances according to class 2 conditions described above, or if there are other conditions which should levels as per the IEC61000-2-4 standard: be considered, always contact your local Carrier representative. Power supply frequency variation: +- 2Hz The required protection level for this class is IP43BW (according to reference Phase imbalance : 2% document IEC 60529). All 30RQM/30RQP units are IP44CW and fulfil this...
  • Page 24: Electrical Connection

    6 - ELECTRICAL CONNECTION Calculate the maximum deviation from the 400 V average: Please refer to the certified dimensional drawings, supplied (AB) = 406 - 400 = 6 with the unit. (BC) = 400 - 399 = 1 (CA) = 400 - 394 = 6 Motor 6.1 - Power supply The maximum deviation from the average is 6 V.
  • Page 25: Power Cable Entry

    6.4 - Power cable entry See the control manual and the certified electric wiring diagram supplied with the unit for the field control wiring of The power cables for devices are routed into the electrical box the following devices: from underneath the unit, •...
  • Page 26: Application Data

    °C Air-cooled exchanger Minimum Maximum - 20 Outdoor ambient operating temperature Standard units °C - 30 Available static pressure Standard units (outdoor installation) Water type heat exchanger water outlet temperature (°C) (1) For applications requiring operation at less than 8°C, contact Carrier to select a unit using the NOTES Carrier electronic catalogue. The evaporator is protected against frost down to -20°C (with frost protection option 41 or option 42A (2) Use of antifreeze is obligatory if the water outlet temperature is below 5°C. (3) For applications requiring operation at a water outlet temperature exceeding 20°C, contact Carrier if the hydraulic module or loop is protected by an antifreeze solution for outdoor temperatures < 0°C) to select a unit using the Carrier electronic catalogue. These operating ranges are guidelines only. Verify the operating range with the Carrier electronic (4) For applications requiring operation from 0°C to -10°C, the unit must be equipped with options catalogue. 28B-28C (winter operation). For operation from 0°C to -20°C, the unit must be equipped with option 28 (winter operation). For both options, the unit must either be equipped with the evaporator...
  • Page 27: Minimum Heat Transfer Fluid Flow Rate (Units Without Factory-Fitted Hydraulic Module)

    7.2 - Minimum heat transfer fluid flow rate (units 7.5 - System minimum water volume without factory-fitted hydraulic module) Whichever the system, the water loop minimum volume is The minimum heat-transfer fluid flow rate is given in the given by the formula paragraph "Water exchanger min.
  • Page 28: Water Type Heat Exchanger Water Flow Rate

    7.7 - Water type heat exchanger water flow rate Data applicable for pure water. 30RBM/30RBP 160-520 units without hydraulic module 30RBM/30RBP 160-520 units with high-pressure hydraulic module Minimum flow rate (l/s) Maximum flow rate (l/s) 30RBM/30RBP Minimum flow rate (l/s) Maximum flow rate (l/s) 30RBM/30RBP...
  • Page 29: Pressure Drop Curves For The Water Type Heat Exchanger And Standard Water Inlet/Outlet Piping

    7.8 - Pressure drop curves for the water type heat exchanger and standard water inlet/outlet piping Data applicable for pure water at 20°C. 30RBM/30RBP 160-360 units 10.0 100.0 Water flow rate, l/s 30RBM/30RBP 160-200 30RBM/30RBP 260 30RBM/30RBP 300 30RBM/30RBP 330 30RBM/30RBP 360 30RBM/30RBP 400-520 units 10.0 100.0 Water flow rate, l/s 30RBM/30RBP 400 30RBM/30RBP 430 30RBM/30RBP 470...
  • Page 30: Water Connections

    8 - WATER CONNECTIONS 8.1 - Operating precautions and recommendations When connecting units to the water distribution pipe work, Before system start-up, make sure the hydraulic circuits are refer to the certified dimensional drawings supplied with the connected to the appropriate heat exchangers. unit for the dimensions and position of the exchanger water The water circuit must have as few bends and horizontal inlet and outlet connections.
  • Page 31: Water Connections

    8.2 - Water connections The hydraulic module options are compatible only with closed loops. The use of the hydraulic module on open systems is prohibited. Typical hydraulic circuit diagram without hydraulic module Typical hydraulic circuit diagram with hydraulic module Op�on Op�on 25 25 Components of the unit and hydraulic module...
  • Page 32 Figure 1: Water connections without hydraulic module Figure 2: Water connections with hydraulic module Example: Single-pump Example: Dual-pump Presence of the stainless steel filter Presence of the Coupling for expansion stainless steel filter vessel (option 293) Coupling for expansion vessel (option 293) See key on previous page. Figure 3: Water connections with hydraulic module and with buffer tank module option...
  • Page 33: Cavitation Protection (With Hydraulic Option)

    8.3 - Cavitation protection (with hydraulic option) 8.5 - Frost protection To ensure the durability of pumps fitted on the integrated Damage caused by frost is not covered by the warranty. hydraulic modules, the control algorithm of units in the range includes protection against cavitation.
  • Page 34 IMPORTANT: Depending on the atmospheric conditions in your region, you need to: • Add an appropriate antifreeze solution (maximum of 45%) to protect the system down to a temperature of 10 K below the lowest temperature likely to occur locally. •...
  • Page 35: Nominal System Water Flow Rate Control

    9 - NOMINAL SYSTEM WATER FLOW RATE CONTROL Hydraulic circuit cleaning procedure • Open all control valves completely (item 22). Refer to the schematic diagram in the "Water connections" • Start up the system pump. paragraph for all item references in this chapter. •...
  • Page 36: Units With Hydraulic Module And Fixed Speed Pump

    9.2 - Units with hydraulic module and fixed speed Example: Unit with specific nominal flow 10.6 l/s pump General See the paragraph on "Units without hydraulic module" Hydraulic circuit cleaning procedure • Open all control valves completely (item 22). • Start up the unit's pump.
  • Page 37: Units With Hydraulic Module And Variable Speed Pump - Pressure Differential Control

    9.3 - Units with hydraulic module and variable speed Procedure for controlling the pressure differential setpoint pump – Pressure differential control Once the circuit is cleaned, place the water circuit in the configuration for which the unit selection was performed The system flow rate has not been set to a nominal value.
  • Page 38: Units With Hydraulic Module And Variable Speed Pump - Temperature Differential Control

    9.4 - Units with hydraulic module and variable speed 9.5 - Units with hydraulic module and variable speed pump – Temperature differential control pump – Setting a fixed flow rate for the system The system flow rate has not been set to a nominal value. The flow will be set to a nominal value.
  • Page 39: Available Static Pressure For The System

    9.6 - Available static pressure for the system Units with hydraulic module (fixed speed pump or variable speed pump at 50 Hz) Data applicable for: • Pure water at 20°C. • Refer to the "Water exchanger water flow" section for the maximum water flow values. •...
  • Page 40 Dual pumps Sizes 160-400 Water flow rate, l/s 30RBM-30RBP 160 to 220 30RBM-30RBP 260 30RBM-30RBP 300 30RBM-30RBP 360 30RBM-30RBP 330 30RBM-30RBP 400 Sizes 430-520 Water flow rate, l/s 30RBM-30RBP 430 30RBM-30RBP 470 30RBM-30RBP 520...
  • Page 41 Low pressure pumps Single pumps Sizes 160-360 Water flow rate, l/s 30RBM-30RBP 160 to 220 30RBM-30RBP 260 30RBM-30RBP 300 30RBM-30RBP 360 30RBM-30RBP 330 Sizes 400-520 Water flow rate, l/s 30RBM-30RBP 520 30RBM-30RBP 400 30RBM-30RBP 430 30RBM-30RBP 470...
  • Page 42 Dual pumps Sizes 160-400 Water flow rate, l/s 30RBM-30RBP 160 to 180 30RBM-30RBP 200 to 220 30RBM-30RBP 260 30RBM-30RBP 300 30RBM-30RBP 330 30RBM-30RBP 360 30RBM-30RBP 400 Sizes 430-520 Water flow rate, l/s 30RBM-30RBP 520 30RBM-30RBP 430 10 30RBM-30RBP 470...
  • Page 43: System Start-Up

    10 - SYSTEM START-UP 10.2 - Commissioning Always ensure you have read and fully understood the 10.1 - Checks before system start-up operating instructions for the units before starting up the unit, Before starting up the thermodynamic system, the complete and ensure the following precautions have been taken: system, including the thermodynamic system, must be verified •...
  • Page 44: Essential Points To Check

    10.3 - Essential points to check 11 - MAIN COMPONENTS OF THE UNIT AND OPERATING CHARACTERISTICS • Compressors Ensure that each compressor is rotating in the correct 11.1 - Compressors direction, checking that the discharge temperature rises quickly, the HP increases and the LP drops. If it is rotating in The units use hermetically sealed scroll compressors.
  • Page 45: Fans

    11.4 - Fans Each fan motor assembly is equipped with a high-performance impeller made from recyclable composite material. The motors are three-phase, with lifetime lubricated bearings and class F insulation (IP55 level). According to regulation No. 327/2011 implementing directive 2009/125/EC with regard to eco-design requirements for fans driven by motors with an electric input power between 125 W and 500 kW.
  • Page 46: Electronic Expansion Valve (Exv)

    11.5 - Electronic expansion valve (EXV) 11.9 - Refrigerant The EXV has a stepper motor and a sight glass which can be Units running with R410A. used to check the mechanism movement and the presence of 11.10 - High-pressure safety pressostat the liquid gasket.
  • Page 47: Fan Arrangement

    11.12 - Fan arrangement 30RBM/30RBP 30RBM/30RBP 30RBM/30RBP 300-330 180-200-220-260 CKT B CKT A CKT B CKT A CKT B CKT A 30RBM/30RBP 360-400 30RBM/30RBP 430-470 CKT B CKT A CKT B CKT A 30RBM/30RBP 520 CKT B CKT A 11.13 - Fan stages Variable Two-speed fan on 30RBM standard...
  • Page 48: Options

    12 - OPTIONS 12.1 - Tables of options Options No. Description Advantages Medium-temperature brine Low temperature chilled water production down to 0°C with Covers specific applications such as ice storage and 30RBM/30RBP solution ethylene glycol and propylene glycol. industrial processes 160-520 Low-temperature brine Low temperature chilled water production down to -15°C Covers specific applications such as ice storage and 30RBM/30RBP solution with ethylene glycol and -12°C with propylene glycol. industrial processes 160-400 High pressure static fans Unit equipped with high pressure static variable-speed fans Ducted fan discharge, optimised condensing (or 30RBP160-520 (maximum 200 Pa), each fan being equipped with a...
  • Page 49 Options No. Description Advantages DX Free-cooling system on 118A Patented Carrier free-cooling system with cooling Energy savings for applications with cooling demand 30RBM/30RBP two circuits micro-pump on both refrigerant circuits. Operation without throughout the entire year 220-520 glycol, no extra free-cooling coil. See DX Free-cooling option chapter DX Free-cooling system on 118B Patented Carrier free-cooling system with cooling...
  • Page 50: Description

    12.2 - Description Additional options can be ordered if necessary: • Protection of the hydraulic module in outdoor 12.2.1 - Hydraulic module without variable speed temperatures of down to -20°C. (options 116R, 116S, 116T, 116U) • Expansion vessel. The hydraulic module is composed of the system's main The use of the hydraulic module on open systems is hydraulic components: factory-fitted water pump, screen filter prohibited.
  • Page 51 Dimensions, clearances 30RBM/RBP 160-520 2’’ Victaulic Power connection 2410 HT Unit with hydraulic module Key: All dimensions are in mm. Clearances required for maintenance and air flow Clearance recommended for coil removal Water inlet Water outlet Air outlet, do not obstruct Control box NOTE: Non-contractual drawings. When designing a system, refer to the certified dimensional drawings provided with the unit or available on request.
  • Page 52 30RBM/RBP 300-400 2’’ Victaulic 3604 HT Unit with hydraulic module 1495 Key: All dimensions are in mm. Clearances required for maintenance and air flow Clearance recommended for coil removal Water inlet Water outlet 1500 1500 Air outlet, do not obstruct Unit without hydraulic module Control box 1495 1500 NOTE: Non-contractual drawings. When designing a system, refer to the certified dimensional drawings provided with the unit or available on request.
  • Page 53 30RBM/RBP 430-520 2’’ Victaulic 4797 HT Unit with hydraulic module 2730 Key: All dimensions are in mm. Clearances required for maintenance and air flow Clearance recommended for coil removal 1500 1500 Water inlet Water outlet Control box Unit without hydraulic module 1500 2730 NOTE: Non-contractual drawings. When designing a system, refer to the certified dimensional drawings provided with the unit or available on request.
  • Page 54 12.2.3.2 - Installation and operation of the heat recovery with desuperheater option The units with the desuperheater option are supplied with one plate heat exchanger per refrigerant circuit. When installing the unit, the heat recovery plate heat exchangers must be insulated and protected against frost if required. Refer to the main diagram below for the main components or functions associated with a unit with desuperheater option in a standard system.
  • Page 55 This may require the use of a three-way valve (item 31), with 12.2.3.3 - Installation its controller and sensor controlling the minimum required The hydraulic supply for each desuperheater is delivered in water inlet temperature. parallel. It is essential for the desuperheater water loop to comprise a The hydraulic connection on the desuperheater water inlet and valve and an expansion vessel which must be selected to take outlets must not generate any local mechanical stress on the...
  • Page 56 Example 1: operation in parallel - control on water inlet Units supplied with hydraulic module for a hydraulic module Master/Slave operation is possible only when the units are installed in parallel: • The Master/Slave assembly is controlled on the water inlet without any additional sensors (standard configuration) (see example 1).
  • Page 57 30RBM 160-520 and 30RBP 160-520 Evaporator ΔT = 3K Medium-temperature Ethylene and Propylene Glycol These operating ranges are guidelines only. Verify the operating range with the Carrier electronic catalogue. 30RBM or 30RBP brine operating range Operating range for 30RBM unit equipped with options 28B and 28C (winter operation). Options 28B-28C (with two-speed lead fan for each circuit) allows operation down to -10 °C outside temperature.
  • Page 58 Refrigerant charge for the low-temperature brine solution option 30RBM and RBP 8,40 10,90 10,90 12,60 12,55 14,15 14,90 20,30 20,60 Circuit A, unit with option 6B 17,5 22,8 22,8 26,3 26,2 29,5 31,1 42,4 43,0 12,25 12,60 12,05 12,70 12,55 20,20 19,70 19,90 21,70 Circuit B, unit with option 6B 25,6 26,3 25,2...
  • Page 59 12.2.6 - Units with variable operating pressure fans (Option The rotation speed of all the fans in the same circuit is controlled in the same way. Ductable units are intended to be ducted on the fan discharge, Therefore each circuit operates independently. and can be installed inside a machine room.
  • Page 60 12.2.7 - Factory-installed duct connection interface on each fan V-shaped air heat exchangers Top view Side view Detail of the duct connection interface frame Size of the duct connection frame 955x955x105mm 12.2.8 - Duct installation principle Solution 1 Solution 2 each fan has its own duct 2 fans can used the same duct...
  • Page 61 Rules for a correct ductwork Fan motor electrical protection • each duct must serve a maximum of 2 fans – DO NOT In case of a locked rotor or an overload, the motors of each EXCEED this limit circuit are electrically protected by the circuit variable speed •...
  • Page 62 12.2.10 - DX Free Cooling option (Options 118A and 118B) The DX Free Cooling option is used to produce chilled water when the ambient air temperature is lower than the temperature of the water to be cooled, without activating the compressors [the compressors can be used for a few seconds during a Free Cooling cycle to transfer the refrigerant charge to the Free Cooling circuit –...
  • Page 63 12.2.10.2 - Operation 12.2.10.3 - Operating limits Switching between Free Cooling and Cooling modes is Cooling mode controlled automatically (it is possible to disable switching in Evaporator (water) Minimum Maximum Entering water temperature at start-up °C Free Cooling by configuring - see the control manual). Leaving water temperature during operation °C The parameters (configurable) for switching are as follows:...
  • Page 64 motors provide a long service life. Compatible fans configuration: Chiller 1 to 20 fans, fixed speed or variable speed fans in one l or 2 lines LEN communication Refer to the drycooler wiring diagram to see the arrangement of the fan stages. 12.2.11.4 –...
  • Page 65 12.2.12 Shell and tube water type heat exchanger option (Option 280) The units equipped with this option have a direct expansion STHE evaporator (the refrigerant is evaporated inside a copper tube bundle, the water circulates inside the shell and tube exchanger), instead of the BPHE (brazed plate heat exchanger). 12.2.12.1 - Physical properties of units with the shell and tube exchanger option 30RBM + option 280 Operating weight...
  • Page 66 12.2.12.3 - Combination with the Brine Option (Options 5B or 6B) 12.2.12.2 - Installation, operation, adjustments The instructions given for standard units (BPHE) are also The instructions given for standard units (BPHE) are also valid for units with option 280 (STHE), with the exception of: valid for units with option 280 (STHE), including those relating the minimum exchanger water outlet temperature which to the operating range (Application data section), to frost...
  • Page 67: Standard Maintenance

    13 - STANDARD MAINTENANCE 13.2 - Level 2 maintenance To ensure optimal efficiency and reliability of the equipment This level requires specific expertise in electrical, hydraulic and all its functions, we recommend taking out a maintenance and mechanical systems. it is possible that this expertise may contract with the local organisation set up by your manufacturer.
  • Page 68: Level 3 Maintenance

    13.4 - Tightening of the electrical connections Refrigerant circuit checks: • The unit is subject to F-gas tight regulatory checks. Designation in the Value Please refer to the table in the introduction. Component unit (N.m) • Check the unit operating parameters and compare them Welded screw PE, customer connection with the previous values, Screw terminal, fuse holder...
  • Page 69: Air-Cooled Exchanger

    13.6 - Air-cooled exchanger 13.7 - Water type heat exchanger We recommend that coils are inspected regularly to check the Check that: degree of fouling. This depends on the environment where the • The insulation has not been detached or torn during operations, unit is installed, in particular urban and industrial sites, and •...
  • Page 70: Refrigerant Properties

    13.10 - Refrigerant properties Properties of R410A Saturated temperatures (°C) based on the relative pressure (in kPa) Satur. temp. Relative pressure Satur. temp. Relative pressure Satur. temp. Relative pressure Satur. temp. Relative pressure 1687 3088 1734 3161 1781 3234 1830 3310 1880 3386...
  • Page 71: Final Shutdown

    14 - FINAL SHUTDOWN 14.1 - Shutting down Separate the units from their energy sources, allow them to cool then drain them completely. 14.2 - Recommendations for disassembly Use the original lifting equipment. Sort the components according to their material for recycling or disposal, in accordance with regulations in force. Check whether any part of the unit can be recycled for another purpose.
  • Page 72: Unit Start-Up Checklist For Installers Prior To Contacting The Manufacturer

    15 - UNIT START-UP CHECKLIST FOR INSTALLERS PRIOR TO CONTACTING THE MANUFACTURER Preliminary information Job name: ........................................Location: ........................................Installing contractor: ....................................Distributor: ....................................... Commissioning performed by: ..........Date: ....................Equipment Model 30RBM/30RBP: ..............Serial number ................Compressors Circuit A ..................Circuit B ..................
  • Page 73 Unit start-up Chilled water pump contactor has been correctly cabled with the chiller Oil level is correct Unit has been leak checked (including fittings) Locate, repair, and report any refrigerant leaks ................................................................................................................................Check voltage imbalance: AB ....AC ....BC....Average voltage = ............
  • Page 74 Carry out the QUICK TEST function (Consult Carrier Service): Check and log on to the user menu configuration Load sequence selection ..................................Capacity ramp loading selection ................................Start-up delay ......................................Pump control ......................................Setpoint reset mode ....................................Night mode capacity limitation ................................
  • Page 76 CARRIER participates in the ECP programme for LCP/HP Check ongoing validity of certificate: www.eurovent-certification.com Order No.: 13539, 05.2019. Supersedes order No.: 13539, 12.2018. Manufactured by: Carrier SCS, Montluel, France. Manufacturer reserves the right to change any product specifications without notice.