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InstallatIon, use and maIntenance manual
Inverter air-water chillers and heat pumps with low-GWP refrigerant
PLUS
» Refrigerant with GWP of less than 500
» High seasonal efficiency values
» Electronic expansion valve
» Inverter scroll configuration single circuit
» Remote connectivity with the most common protocols
» Possibility to configure low-noise versions
» Gas leak detection systems for standard
PLI
35 - 50 k W
R-454B
A2L gas leak
refrigerant
detection
exchanger
Plate
Axial fan
Cooling only
Heating/
Cooling
EN
Packaged
execution
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Table of Contents
Related Manuals for Galletti PLI035
Summary of Contents for Galletti PLI035
- Page 1 InstallatIon, use and maIntenance manual Inverter air-water chillers and heat pumps with low-GWP refrigerant 35 - 50 k W R-454B A2L gas leak Plate Axial fan Cooling only Heating/ Packaged refrigerant detection exchanger Cooling execution PLUS » Refrigerant with GWP of less than 500 »...
- 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-...
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Page 4: Table Of Contents
TABLE OF CONTENTS p 20 PLI SERIES 6.5.5 Dynamic limit maximum ventilation p 5 p 20 6.5.6 Power analyzer FIELD OF APPLICATION p 5... -
Page 5: Pli Series
>= 19,000 kJ/kg MAIN FEATURES PLI is Galletti's new range of air-cooled packaged chillers and heat pumps for outdoor installation featuring R454B refrigerant. R454B is a next generation A2L refrigerant with a GWP of only 467, one of the lowest on the market. - Page 6 The range PLI consists of 4 models with cooling capacities from others forbidden or make some selection (fields) mandatory. 35 to 50 kW, available as cooling only and reversible heat pump Please contact Galletti S.p.A. for verification. mode, charged with R454B fluid classified like A2L (slightly » Configuration options...
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Page 7: 15 Main Components P
40%, with obvious benefits from an during operation in chiller mode and towards coils in heat ecological point of view. Galletti microchannel coils are made of pump mode. Long Life Alloy, an aluminium alloy that offers maximum safety Ū... -
Page 8: 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 9: Installation Clearance Requirements
INSTALLATION CLEARANCE REQUIREMENTS AND DIMENSIONAL To guarantee the proper functioning of the unit and access for maintenance purposes, it is necessary to comply with the mini- mum installation clearance requirements shown in dimensional drawings. Verify that there are no obstacoles in front of the fans air outlet. Ū... - Page 10 » PLI 035 INSTALLATION, USE AND MAINTENANCE MANUAL...
- Page 11 » PLI 040-045-050 RG66025399 All copying, even partial, of this manual is strictly forbidden...
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Page 12: Condensate Discharge From Unit
2.4.1 Condensate discharge from unit During normal operation of the unit as a heat pump, condensate is produced due to the dehumidification of the air in contact with the finned block heat exchanger. In order to hold the condensate that the unit normally produces during operation in winter mode (and during defrosting), it is advisable to prepare a technical tank below the base of the unit, with sufficient capacity to collect and discharge the water pro-... -
Page 13: Installation Site Features
INSTALLATION SITE FEATURES The units of the PLI 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 14: Weights
WEIGHTS This drawing shows the points of the machine for which weights have been calculated, with respect to the basic chiller and heat pump model. The weights are shown in the tables below. » Lifting center of gravity for transporting unit C version without hydraulic options 1010 1015 1015... - Page 15 » Operating weight H version without hydraulic options Total » C - 1 pump version weight distribution with full inertial tank Total » Operating weight H version with pump and full buffer tank Total RG66025399 All copying, even partial, of this manual is strictly forbidden...
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Page 16: Technical Features
TECHNICAL FEATURES PLI C WATER CHILLERS RATED TECHNICAL DATA » PLI C water chillers rated technical data Power supply V-ph-Hz 400-3N-50 Cooling capacity 36,6 43,1 48,4 53,4 Total power input 12,3 14,3 15,6 17,8 2,97 3,01 3,10 3,00 SEER 5,04 5,17 5,28 5,21... - Page 17 PLI H HEAT PUMPS RATED TECHNICAL DATA » PLI H Heat pumps rated technical data Power supply V-ph-Hz 230-1-50 Cooling capacity 33,6 39,7 44,9 49,1 Total power input 13,0 15,3 16,3 18,8 2,58 2,59 2,75 2,61 SEER 4,12 4,40 4,57 4,56 Water flow 5779...
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Page 18: 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 19: Changing The Operatining Mode (Heat Pump Only)
preselected operating mode (press PRG when indicated) Switchover mode from cooling to heating is unavailable on cooling only units or motor-driven evaporating units. 6.3.2 Changing the operatining mode (heat pump only) 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 20: Restart - Fast Restart
6.5.8 Tanks probes management Ū Total unit swithing off Ū Activation of forced ventilation of electrical board The software offers the possibility of installing a tank sensor for The alarm can only be reset if the sensor no longer detects the each device. -
Page 21: Lan
6.5.12 LAN cycle time) is reached 4. POST-DEFROST PHASE with compressors stopped and venti- Lan (Local Area Network) is a set of integrated functions for op- lation switched on in order to eliminate water droplets from timising the regulation of systems with at least 2 chillers. This the coils. -
Page 22: 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 23: Plumbing And Electrical Connections
PLUMBING AND ELECTRICAL CONNECTIONS PLUMBING CONNECTION from the power supply - make sure that the circuit is com- pletely full of water and check again to make sure there is no All units in the PLI series are equipped with water flow switch, re- air before starting the pump for the first time. -
Page 24: Recommended Water Circuit
pressure of the hydraulic circuit) in order to avoid the entry chiller only) must be emptied to prevent damage caused by of oxygen and to protect the parts of the system from the freezing; alternatively, the circuit may be filled with a mixture of risk of corrosion. - Page 25 An all-pole circuit breaker must be used on the electric panel An earth connection is mandatory: connect the earthing upstream, conform to IEC Standards (contacts must be open wire to the terminal provided on the electric control board at least of 3 mm), with suitable interruption capacity and dif- (see the electric control board layout supplied with the unit ferential protection, according to the electrical data tables ), marked...
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Page 26: Electrical Data
ELECTRICAL DATA » Electrical data PLI Maximum power input 17,9 19,3 22,8 23,8 Maximum current absorption 44,0 46,0 49,0 50,0 Start up current Startup current with soft starter Auxiliary power supply V-ph-Hz 230 - 1 - 50 External power supply sensor 24VAC Cross-section area of power cables mm²... - Page 27 » Main electrical connection of units RG66025399 All copying, even partial, of this manual is strictly forbidden...
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Page 28: 84 Water Circuit P
WATER CIRCUIT » PLI (evaporator) LEGEND Evaporator Water filter (included) Flow switch Safety valve (supplied) 10 Antifreeze electric heating Air purge valve Pressure gauge ------ Internal and external borderline — — — OPTIONAL » PLI (evaporator and tank) LEGEND Evaporator Buffer tank Water filter (included) Expansion tank... - Page 29 » PLI (evaporator, pump and tank) LEGEND Evaporator Expansion tank Water filter (included) Safety valve (supplied) 10 Antifreeze electric heating Flow switch Air purge valve 11 Hydraulic pump 12 Clapet valve Pressure gauge ------ Internal and external borderline Drain Buffer tank —...
- Page 30 » PLI (evaporator, tank and 2 pumps) LEGEND Evaporator Safety valve (supplied) Water filter (included) 10 Antifreeze electric heating 11 Hydraulic pump Flow switch Air purge valve 12 Clapet valve 13 Intake pump shut-off valve Pressure gauge 14 Outlet pumps shut-off valve (NOT SUPPLIED) Drain Buffer tank ------ Internal and external borderline...
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Page 31: Operating Limits
5 K at full the operating limits, even under conditions of load regula- load. tion and splitting of the unit. If in doubt, contact the Galletti IMPORTANT: except for special requests, which can be product support department. -
Page 32: 91 Operating Limits Pli C P
OPERATING LIMITS PLI H » PLI H 35-40 operating range Electronic valve check Evaporation control custom parameters T.W. Temperature of water produced T.A. Air temperature INSTALLATION, USE AND MAINTENANCE MANUAL... -
Page 33: 93 Thermal Carrying Fluid P
» PLI H 45-50 operating range Electronic valve check Evaporation control custom parameters T.W. Temperature of water produced T.A. Air temperature THERMAL CARRYING FLUID of up to 35%. IMPORTANT: observe the minimum water temperature in- The hydraulic pumps belonging to the PLI series can operate dicated in the operating ranges. -
Page 34: Control And Safety Devices
The choice not to use the external power supply is a risk that is borne by the customer. Galletti therefore, no liability shall 10.1.1 Service thermostat be accepted for injury to persons or damage to property... -
Page 35: Safety Device Settings
10.2.8 Safety device settings Safety device Start up Differential Resetting Maximum pressure switch (bars) Manual Minimum pressure switch (bars) Automatic Antifreeze thermostat (°C) Manual Water safety valve (bars) RG66025399 All copying, even partial, of this manual is strictly forbidden... -
Page 36: Routine Maintenance And Checks
11 ROUTINE MAINTENANCE AND CHECKS It is recommended to carry out periodic checks of the safety Ū Rinse with water by allowing it to flow through all the fins' devices (pressure switches and safety valves) and verify the ab- openings. Pressurised water (max 60 bar, max 55 °C) can also sence of refrigerant leaks. - Page 37 CE marking of the unit. In order to buy the right sensors please refer to the following Galletti's codes: RG11014920: Unit 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.
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Page 38: 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 39 » PLI F1 C cooling circuit RG66025399 All copying, even partial, of this manual is strictly forbidden...
- Page 40 » PLI F2 C cooling circuit INSTALLATION, USE AND MAINTENANCE MANUAL...
- Page 41 » PLI F1 H cooling circuit RG66025399 All copying, even partial, of this manual is strictly forbidden...
- Page 42 » PLI F2 H cooling circuit INSTALLATION, USE AND MAINTENANCE MANUAL...
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Page 43: 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 44 Who can take corrective action SYMPTOM U = User Probable cause Possible remedy S = specialised personnel Pressure switch failure Check and replace Unit completely empty See item G Finned coil obstructed, Remove dirt from the coil insufficient air flow Water circulation pump Release the pump blocked...
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Page 45: 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 46 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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