Galletti VLS Instructions For Installation, Use And Maintenance Manual
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Galletti VLS Instructions For Installation, Use And Maintenance Manual

Air-water chillers and heat pumps with low-gwp refrigerant
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InstallatIon, use and maIntenance manual
VLS
air-water chillers and heat pumps with low-GWP refrigerant
160 - 590k W
PLUS
» Refrigerant with GWP of less than 500
» High seasonal efficiency values
» Electronic expansion valve
» Up to 6 compressors
» 1 or 2 cooling circuits
» Remote connectivity with the most common protocols
» Possibility to configure low-noise versions
» Possibility to configure with piping shell and tube heat
exchanger

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  • Page 1 InstallatIon, use and maIntenance manual air-water chillers and heat pumps with low-GWP refrigerant 160 - 590k W PLUS » Refrigerant with GWP of less than 500 » High seasonal efficiency values » Electronic expansion valve » Up to 6 compressors »...
  • Page 2 Dear Customer, Thank you for placing your trust in one of the products of Galletti S.p.a This product is the result of our work and our commitment to design, research, and production and has been made from the finest materials, employing state-of-the-art components and production technology.
  • Page 3 For more information, contact Ū Galletti S.p.A. shall not accept any liability for injury your installer or local authority. or damage resultingcfrom improper use of the equip-...

  • Page 4: Table Of Contents

    VLS C � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �...

  • Page 5: Vls Serie

    The use of top quality components at the cutting edge of tech- nology in the cooling, hydraulic, and electrical systems makes VLS chillers state of the art in terms of efficiency, reliability, and operating limits. IMPORTANT: Since R454B gas refrigerant is heavier than air, In fact, the ability to produce water from -10 °C to 57 °C and op-...
  • Page 6 (slightly flammable) NOTE: The choice of some options can make the choice of some The range VLS consists of 13 models with cooling capacities others forbidden or make some selection (fields) mandatory. from 160 to 590 kW, available as cooling only and reversible Please contact Galletti S.p.A.
  • Page 7 Covering panels V Set-point modification with 4-20mA signal RG66025045 All copying, even partial, of this manual is strictly forbidden...

  • Page 8: Main Components

    Ū Electronic valve for liquid injection (VLS H): available on con- refrigerant charge by up to 40%, with obvious benefits from an figuration with liquid separator, allows the operating limit ecological point of view.

  • Page 9: Inspection, Conveyance Dimensional And Siting

    Should you detect any signs of damage, immediately report them to the carrier and note them on the delivery slip. Galletti S.p.A. Must be notified of the entity of the damage with- in 8 days of the delivery date. Check that the following items are present: Ū...

  • Page 10: Siting And Dampers

    Ū If even only one of the above conditions is not fulfilled, please contact the manufacturer to check for feasibility. Ū In the design of the VLS series, special care has been taken to minimise noise and vibrations transmitted to the ground.
  • Page 11 » VLS C frame 1 RG66025045 All copying, even partial, of this manual is strictly forbidden...
  • Page 12 » VLS H Frame 1 INSTALLATION, USE AND MAINTENANCE MANUAL...
  • Page 13 » VLS H Frame 2 mono circuit RG66025045 All copying, even partial, of this manual is strictly forbidden...
  • Page 14 » VLS H Frame 2 mono circuit INSTALLATION, USE AND MAINTENANCE MANUAL...
  • Page 15 » VLS C Frame 2 double circuit RG66025045 All copying, even partial, of this manual is strictly forbidden...
  • Page 16 » VLS H Frame 2 double circuit INSTALLATION, USE AND MAINTENANCE MANUAL...
  • Page 17 » VLS C Frame 3 RG66025045 All copying, even partial, of this manual is strictly forbidden...
  • Page 18 » VLS H Frame 3 INSTALLATION, USE AND MAINTENANCE MANUAL...
  • Page 19 » VLS C Frame 4 RG66025045 All copying, even partial, of this manual is strictly forbidden...
  • Page 20 » VLS H Frame 4 INSTALLATION, USE AND MAINTENANCE MANUAL...
  • Page 21 » VLS C Frame 5 RG66025045 All copying, even partial, of this manual is strictly forbidden...
  • Page 22 » VLS H Frame 5 INSTALLATION, USE AND MAINTENANCE MANUAL...
  • Page 23 2.4.1 Condensate discharge from unit with the finned block heat exchanger. This condensate is collected in the tanks and can be drained us- During normal operation of the unit as a heat pump, condensate ing the connection pipettes shown in the figure. is produced due to the dehumidification of the air in contact »...

  • Page 24: Installation Site Features

    INSTALLATION SITE FEATURES The units of the VLS range are designed for outdoor installation, In any case, avoid installing the units in locations that could be in a context where the natural dilution of the refrigerant that dangerous during placement, start-up, operation, and mainte- could escape as the result of a leak guarantees a degree of safety.

  • Page 25: Weights

    This drawing shows the points of the machine for which weights pump model. The weights are shown in the tables below. have been calculated, with respect to the basic chiller and heat » VLS frame 1 » VLS frame 2 » VLS frame 3 »...
  • Page 26 » VLS frame 5 » Lifting center of gravity for transporting unit C version without hydraulic options 1497 1496 1447 1445 1432 1432 2128 2126 3000 3018 3914 3885 1077 1077 1077 1077 1000 1002 1182 1212 1352 1361 » Lifting center of gravity for transporting unit H version without hydraulic options...
  • Page 27 » Operating weight H version without hydraulic options Total 1155 2040 2172 2126 1969 2174 2188 2869 2876 3623 3889 4641 4697 » Operating weight C version with pump and full buffer tank Total 1678 2243 2376 2296 2284 2485 2497 3885 3892...

  • Page 28: Technical Features

    TECHNICAL FEATURES WATER CHILLERS RATED TECHNICAL DATA VLS C » Water chillers rated technical data VLS C Power supply V-ph-Hz 400-3N-50 Cooling capacity Total power input 58,3 67,3 73,9 80,5 85,0 Absorbed rated current 95,0 2,75 3,12 3,14 2,96 2,94...
  • Page 29 Power supply V-ph-Hz 400-3N-50 Cooling capacity Total power input Absorbed rated current 2,92 2,96 3,33 2,93 3,04 2,94 SEER 4,43 4,33 4,78 4,61 4,64 4,62 Air flow rate m³/h 127700 127700 170200 170200 212800 212800 Water flow 59124 63602 72187 81639 93660 101397...
  • Page 30 HEAT PUMPS RATED TECHNICAL DATA VLS H » Heat pumps rated technical data VLS H Power supply V-ph-Hz 400-3N-50 Cooling capacity Total power input 58,5 67,7 73,9 80,5 85,0 Absorbed rated current 95,0 2,73 3,10 3,14 2,93 2,94 2,69 2,67...
  • Page 31 Power supply V-ph-Hz 400-3N-50 Cooling capacity Total power input Absorbed rated current 2,91 2,90 3,26 2,91 3,03 2,85 SEER 4,35 4,23 4,69 4,60 4,61 4,60 Heating capacity Total power input Absorbed rated current 3,21 3,13 3,42 3,08 3,21 3,20 SCOP 3,68 3,72 3,65...

  • Page 32: Microprocessor Control

    MICROPROCESSOR CONTROL Below are specified the microprocessor control functions in the The advanced control instructios are described in service basic version. manual. » pGD DESCRIPTION OF CONTROL PANEL USING THE CONTROL PANEL The unit's control panel allows you to display and set the unit's 6.2.1 Display operating parameters and read the main operating data.

  • Page 33: Display And Setting Of Operating

    preselected operating mode (press PRG when indicated) Ū Switchover mode from cooling to heating is unavailable on cooling only units or motor-driven evaporating units. 6.3.2 Changing the operatining mode To enable remote ON-OFF switching from the PCDS or via an external switch (not supplied) make connections to terminals indicated on wiring diagram (normally jumpered).
  • Page 34 6.5.8 Tanks probes management Ū Activation of forced ventilation of electrical board The alarm can only be reset if the sensor no longer detects the The software offers the possibility of installing a tank sensor for presence of refrigerant in the air above the alarm threshold. each device.
  • Page 35 cycle time) is reached without first consulting the parent company. 4. POST-DEFROST PHASE with compressors stopped and venti- 6.5.12 LAN lation switched on in order to eliminate water droplets from the coils. Switching of the 4-way valve at half of the time Lan (Local Area Network) is a set of integrated functions for op- WARNING: The following section concerning separate de-...
  • Page 36 In this way it's possible to reduce substantially the noise emis- sions during the set time bands. WARNING: During the night time low noise the unit oper- ation limit is limited, like shown in paragraph   p.  45 (EC low noise). INSTALLATION, USE AND MAINTENANCE MANUAL...

  • Page 37: Start-Up

    The first start up must be carried out exclusively by qualified this operation for a sufficient time to allow the water to cir- personnel and authorized by Galletti S.p.A. (see warranty culate in the system a few times. sheet attached).

  • Page 38: Plumbing And Electrical Connections

    - make sure that the circuit is com- All units in the VLS series are equipped with water flow switch pletely full of water and check again to make sure there is no (supplied with the unit), relief valve (supplied with the unit), wa- air before starting the pump for the first time.
  • Page 39 pressure of the hydraulic circuit) in order to avoid the entry freezing; alternatively, the circuit may be filled with a mixture of of oxygen and to protect the parts of the system from the water and glycol; the percentage of glycol necessary will depend risk of corrosion.

  • Page 40: Electrical Connections

    8.3 Electrical data and using the unit wiring di- for the electrical inputs specified in the table of electrical da- agram as your reference. All the VLS series units with gas leak detection system on con- WARNING Before carrying out any job on electrical parts, figuration, are equipped with a control panel designed to re- make sure the power supply is disconnected.

  • Page 41: Electrical Data

    (by means ELECTRICAL DATA » Electrical data VLS Maximum current absorption Maximum power input 86,4...
  • Page 42 » Main electrical connection of units INSTALLATION, USE AND MAINTENANCE MANUAL...

  • Page 43: Water Circuit

    Evaporator Water filter (included) Flow switch 10 Antifreeze electric heating Air purge valve Pressure gauge ------ Internal and external borderline ——— OPTIONAL » VLS (evaporator and tank) LEGEND Evaporator Buffer tank Water filter (included) Expansion tank Flow switch Safety valve...
  • Page 44 » VLS (evaporator, pump and tank) LEGEND Evaporator Safety valve Water filter (included) 10 Antifreeze electric heating 11 Hydraulic pump Flow switch Air purge valve 12 Clapet valve 13 Pump shut-off valve Pressure gauge ------ Internal and external borderline Drain Buffer tank ———...

  • Page 45: Operating Limits

    The outlet water temperature, VLS C OPERATING RANGE » VLS C 162-243-274-314-354-374 and VLS H in cooling mode operating range Glycol EC fans Electronic expansion valve and pump motor check (contact the company) Condensation control custom parameters T.
  • Page 46 » VLS C 202-234-254-414-456-546-576 and VLS H in cooling mode operating range Glycol EC fans Electronic expansion valve and pump motor check (contact the company) Condensation control custom parameters T. air °C Air temperature T. water °C Temperature of water produced...

  • Page 47: Vls H Operating Range

    VLS H OPERATING RANGE » VLS H 162-274-314-344-374 operating range Check winter thermostatic valves (contact the company) T. water °C Temperature of water produced T. air °C Air temperature Standard Hydro Smart Flow Liquid injection RG66025045 All copying, even partial, of this manual is strictly forbidden...
  • Page 48 » VLS H 202-234-254-414-456 operating range Check winter thermostatic valves (contact the company) T. water °C Temperature of water produced T. air °C Air temperature Standard Hydro Smart Flow Liquid injection INSTALLATION, USE AND MAINTENANCE MANUAL...
  • Page 49 » VLS H 243-546-576 operating range Check winter thermostatic valves (contact the company) T. water °C Temperature of water produced T. air °C Air temperature Standard Hydro Smart Flow Liquid injection RG66025045 All copying, even partial, of this manual is strictly forbidden...

  • Page 50: Vls C Operating Range With Piping Shell And Tube Heat Exchanger

    VLS C OPERATING RANGE WITH PIPING SHELL AND TUBE HEAT EXCHANGER » VLS C 162-243-274-314-354-374 and VLS H in cooling mode operating range with piping shell and tube heat exchanger Glycol EC fans Electronic expansion valve and pump motor check (contact the company)
  • Page 51 » VLS C 202-234-254-414-456-546-576 and VLS H in cooling mode operating range with piping shell and tube heat exchanger Glycol EC fans Electronic expansion valve and pump motor check (contact the company) Condensation control custom parameters Custom seletcion with piping shell and tube heat exchanger (contact the company) T.
  • Page 52 VLS H OPERATING RANGE WITH PIPING SHELL AND TUBE HEAT EXCHANGER » VLS H 162-243-274-314-354-374 operating range with piping shell and tube heat exchanger Check winter thermostatic valves (contact the company) Custom seletcion with piping shell and tube heat exchanger (contact the company) T.
  • Page 53 » VLS H 202-234-254-414-456 operating range with piping shell and tube heat exchanger Check winter thermostatic valves (contact the company) Custom seletcion with piping shell and tube heat exchanger (contact the company) T. water °C Temperature of water produced T. air °C Air temperature...

  • Page 54: Thermal Carrying Fluid

    » VLS H 243-546-576 operating range with piping shell and tube heat exchanger Check winter thermostatic valves (contact the company) Custom seletcion with piping shell and tube heat exchanger (contact the company) T. water °C Temperature of water produced T. air °C Air temperature...
  • Page 55 stopping of the unit RG66025045 All copying, even partial, of this manual is strictly forbidden...

  • Page 56: Control And Safety Devices

    The low pressure switch stops the compressor when the intake made only by Galletti authorized staff. The new valve must pressure falls below the set value. be equal to the one replaced and by Galletti internal code. 10.2.3 Anti-recycle timer IMPORTANT:...

  • Page 57: Routine Maintenance And Checks

    All the operations described in this section MUST ALWAYS 11.1.1 Microchannels air condenser maintenance BE PERFORMED BY QUALIFIED PERSONNEL. For VLS C units, proper cleaning and periodic maintenance of WARNING Before carrying out any work on the unit or ac-...
  • Page 58 CE marking of the unit. In order to buy the right sensors please refer to the following Galletti's codes: RG11014921: Unit gas detection sensor RG11014920: Control board gas detection sensor WARNING: During periodic controls it is suggested to check the right behaviour of the sensor control board so that there is no alarm.

  • Page 59: Cooling Circuits

    12 COOLING CIRCUITS » Legend N° COMPONENT SYMBOL Compressor Evaporator Condenser Thermostatic valve Electrical fan Filter Sight glass Solenoid valve High pressure switch Low pressure switch High pressure gauge Low pressure gauge Service connection Differential pressure switch Check valve 4 Way diversion valve Liquid separator Liquid receiver Pressure transducer...
  • Page 60 » Single-circuit VLS C F1 cooling circuit diagram INSTALLATION, USE AND MAINTENANCE MANUAL...
  • Page 61 » Single-circuit VLS H F1 cooling circuit diagram RG66025045 All copying, even partial, of this manual is strictly forbidden...
  • Page 62 » Single-circuit VLS C F2 cooling circuit diagram INSTALLATION, USE AND MAINTENANCE MANUAL...
  • Page 63 » Single-circuit VLS H F2 cooling circuit diagram RG66025045 All copying, even partial, of this manual is strictly forbidden...
  • Page 64 » Double-circuit VLS C F2 cooling circuit diagram INSTALLATION, USE AND MAINTENANCE MANUAL...
  • Page 65 » Double-circuit VLS H F2 cooling circuit diagram RG66025045 All copying, even partial, of this manual is strictly forbidden...
  • Page 66 » Double-circuit VLS C F3 cooling circuit diagram INSTALLATION, USE AND MAINTENANCE MANUAL...
  • Page 67 » Double-circuit VLS H F3 cooling circuit diagram RG66025045 All copying, even partial, of this manual is strictly forbidden...
  • Page 68 » Double-circuit VLS C F4 cooling circuit diagram INSTALLATION, USE AND MAINTENANCE MANUAL...
  • Page 69 » Double-circuit VLS H F4 cooling circuit diagram RG66025045 All copying, even partial, of this manual is strictly forbidden...
  • Page 70 » Double-circuit VLS C F5 cooling circuit diagram INSTALLATION, USE AND MAINTENANCE MANUAL...
  • Page 71 » Double-circuit VLS H F5 cooling circuit diagram RG66025045 All copying, even partial, of this manual is strictly forbidden...

  • Page 72: Troubleshooting

    Operations marked with the letter "S" may be performed exclusively by specialised personnel. Once the cause has been identified, you are advised to contact a Galletti S.p.A. service centre or a qualified technician for help.
  • Page 73 Who can take corrective action SYMPTOM Probable cause Possible remedy U = User S = specialised personnel Pressure switch failure Check and replace Unit completely empty See item G Finned coil obstructed, insufficient air flow Remove dirt from the coil Water circulation pump blocked Release the pump Water circulation pump blocked defective...

  • Page 74: Retiring The Unit

    14 RETIRING THE UNIT When the unit has reached the end of its working life and needs to be removed and replaced, a series of operations should be carried out: In particular, the disposal of the unit should be car- ried out solely by qualified technicians specifically trained for this type of equipment, in conformity with current regulations.
  • Page 76 Romagnoli 12/a 40010 Bentivoglio (BO) - Italy Galletti S.p.A Organization has a Ph. +39 051/8908111 - Fax +039 051/8908122 Management System Certified by Kiwa Cermet Italia S.p.A, according to the UNI EN ISO 9001:2015, UNI EN ISO 14001:2015 and UNI ISO www.galletti.com...

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