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Table of Contents
Related Manuals for Galletti LCP Series
Summary of Contents for Galletti LCP Series
- Page 1 Installation use and maintenance MULTI-PURPOSE VERSION...
- Page 2 RG66006889-Rev.01...
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Page 3: Table Of Contents
CONTENTS PAGE THE SERIES FIELD OF APPLICATION GENERALITIES INSPECTION, CONVEYANCE, SITING INSPECTION LIFTING AND CONVEYANCE UNPACKING SITING INSTALLATION INSTALLATION CLEARANCE REQUIREMENTS ... - Page 4 ANTI-RECYCLE TIMER OIL DIFFERENTIAL PRESSURE SWITCH ROUTINE MAINTENANCE AND CHECKS 10.1 WARNINGS 10.2 GENERALITIES 10.3 REPAIRING THE COOLING CIRCUIT 10.4 TIGHTNESS TEST 10.5 HARD VACUUM AND DRYING OF THE COOLING CIRCUIT ...
- Page 5 Declaration of conformity The declaration of conformity is individually appended to the documents accompanying the unit, normally placed inside the electrical enclosure. RG66006889-Rev.01...
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Page 6: The Series
1 THE SERIES Fluid chillers and heat pumps designed to cool water or mixtures of water and an antifreeze agent, intended for civil air conditioning and industrial cooling systems. LCP chillers, available in versions with different acoustic designs (“S”, “L”) and cooling circuit architectures (Efficiency pack 1, 4), cover a range of cooling capacities from 51.4 to 318.1 kW, calculated with reference to standard conditions. - Page 7 LCP194HS/PS 186,7 LCP194HL/PL 181,4 LCP214HS/PS 220,4 LCP214HL/PL 214,8 LCP244HS/PS 245,4 LCP244HL/PL 238,2 LCP274HS/PS 276,1 LCP274HL/PL 270,1 LCP294HS/PS 299,9 LCP294HL/PL 291,6 LCP324HS/PS 318,1 LCP324HL/PL 308,7 Description of operation: The machine has 4 water connections referring to two different hydraulic circuits: Circuit “1” = production of cold water (summer) – hot water (winter) Circuit “2”...
- Page 8 The possible operations are: Summer Mode: a) Cooling Only (represented on following page): the system produces cold water on circuit "1" with the heat exchanger "S1" and the heat removed, together with the power absorbed by the compressors, is dispersed into the outdoor air by means of finned coils (S3) which act as condensers.
- Page 9 Graphical representation of the operation cycles a-b-c-d-e described above: RG66006889-Rev.01...
- Page 10 Possible operation combinations as the thermal load varies: - Unit with 2 Compressors 2 refrigerant circuits: Summer Mode: Winter Mode: 100% Cooling (1) 100% Heat (4) 50% Cooling 50% Heat 100% Cooling + 100% DHW (2) 50% Cooling + 50% DHW 50% Cooling + 100% DHW 50% Heat + 50% DHW 100% Cooling + 50% DHW...
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Page 11: Field Of Application
Therefore, only qualified personnel may perform any kind of work on the unit. THE UNIT MUST BE STARTED UP FOR THE FIRST TIME EXCLUSIVELY BY QUALIFIED PERSONNEL AUTHORISED BY GALLETTI S.P.A. (SEE ATTACHMENT). AILURE TO COMPLY WITH THE RULES PROVIDED IN THIS MANUAL OR ANY MODIFICATION MADE... -
Page 12: Inspection, Conveyance, Siting
Check, in particular, that the fins of the finned block heat exchangers are not bent and have not undergone impacts that may have impaired the system's tightness under pressure. Galletti S.p.A. or its Agent must be promptly notified of the entity of the damage. The Customer must submit a written report describing every significant sign of damage. -
Page 13: Unpacking
- possible reverberation of sound waves. All models belonging to the LCP series are designed and built for outdoor installation: avoid covering them with roof structures or positioning them near plants (even if they only partly cover the unit) which may interfere with the regular ventilation of the unit condenser. -
Page 14: Installation
5 INSTALLATION INSTALLATION CLEARANCE REQUIREMENTS It is of fundamental importance to ensure an adequate volume of air both on the intake and outlet sides of the finned condenser/evaporator coils; it is highly important to prevent the air delivered from being re- aspirated as this may impair the performance of the unit or even cause an interruption in normal operation. -
Page 15: General Guidelines For Plumbing Connections
GENERAL GUIDELINES FOR PLUMBING CONNECTIONS When you are getting ready to set up the water circuit for the evaporator you should follow the directions below and in any case make sure you comply with national or local regulations (use the diagrams included in this manual as your reference). -
Page 16: Water Connection To The Evaporator
WATER CONNECTION TO THE EVAPORATOR It is of fundamental importance that the incoming water supply is hooked up to the connection marked “Water Inlet”. Otherwise the evaporator would be exposed to the risk of freezing since the antifreeze thermostat would not be able to perform its function;... -
Page 17: Safety Devices On The High Pressure Side
A standard feature of LCP units is a device for controlling the flow rate (vane operated flow switch) in the water circuit in the immediate vicinity of the evaporator. Any tampering with said device will immediately invalidate the warranty. It is compulsory to install a metal filter with a mesh smaller less 1mm on the inlet water pipe. -
Page 18: Electrical Connections
6 ELECTRICAL CONNECTIONS GENERALITIES Before carrying out any job on electrical parts, make sure the power supply is disconnected. Check that the mains electricity supply is compatible with the specifications (voltage, number of phases, frequency) shown on the unit rating plate. The power connection is made by means of a three-core cable plus neutral and earth cable or single- core cables (one per phase) + earth according to the minimum cross section sizes specified in the wiring diagram, which is an integral part of the documentation accompanying the chiller;... -
Page 19: Electrical Connections Of Water Vane Operated Flow Switch
ELECTRICAL CONNECTIONS OF WATER VANE OPERATED FLOW SWITCH Available for all LCP units is an additional vane operating flow switch installed in series with the water and electrical circuits and wired in the unit configuration. ELECTRIC CONNECTIONS OF THE CIRCULATION PUMP If selected on ordering, it/they is/are supplied pre-wired with all LCP units. -
Page 20: Starting Up
7 STARTING UP PRELIMINARY CHECKS Check that all the valves in the cooling circuit are open (liquid line). Check that the electrical connections have been made properly and that all the terminals are securely tightened. This check should also be included in a periodic six-month inspection. Check that the voltage at the RST terminals is 400 V ±... -
Page 21: Starting Operation
Pressure crankcase Oil T % of R410A dissolved in oil The diagram above illustrates a specific property [Charles’ Law] of gases, which are more soluble in liquids as the pressure increases but less soluble as the temperature increases: if the oil is held at a constant pressure: an increase in temperature will significantly reduce the amount of refrigerant dissolved in it, thus ensuring that the lubricating function desired is maintained. -
Page 22: Checks During Operation
CHECKS DURING OPERATION - Check the phase sequence relay on the electrical control board to verify whether the phases occur in the correct sequence: if they do not, disconnect the unit from power supply and reverse two phases at the unit input. Never attempt to modify internal electrical connections: any undue modifications will render the warranty null and void. -
Page 23: Expansion Valve (Optional)
Warning: the refrigerant R410A requires “POE” polyolester oil of a type approved by the compressor manufacturer. For no reason should a mineral oil be introduced into the oil circuit. Compressor Average T discharge (T1+T2)/2 real P T1 (start of condensation) DEW POINT T2 (end of condensation) BUBBLE POINT... -
Page 24: Stopping The Unit
Proactive action of an Electronic Expansion Valve: In the event of a compressor on/off request: The electronic driver pre-positions the valve at a point very near the final equilibrium point A status of equilibrium is quickly reached with small adjustments ... -
Page 25: Chilled Water Temperature
The units are designed and built to work with outdoor air temperatures ranging from -10 (with condensation control) to 45 °C. Applications outside the specified limits may be authorised by Galletti S.p.A. subject to verification and subsequent authorisation in writing. On request, the units may be equipped with an electric heating element for heating the evaporator in cases where the unit is exposed to severe temperatures during wintertime shutdown periods. -
Page 26: Maximum Pressure Switch
TABLE II – SETTING OF SAFETY - CONTROL DEVICES - LCP SERIES CONTROL DEVICE ACTIVATION DIFFERENTIAL RESETTING Antifreeze thermostat °C Automatic Safety maximum pressure switch -13,5 Manual Safety maximum pressure switch 40,5 -12,2 Manual High pressure relief valve Minimum pressure switch... -
Page 27: Antifreeze Thermostat
ANTIFREEZE THERMOSTAT The antifreeze sensor situated at the evaporator outlet detects the presence of excessively low temperatures and stops the unit. Together with the flow switch and low pressure switch, this device protects the evaporator from the risk of freezing as a result of faults in the water circuit. This device is a function included in the microprocessor control. -
Page 28: Generalities
Check that the noise emissions of the unit are regular (every 6 months) and more specifically that no vibrations and/or knocking can be detected. Galletti S.p.A.. is not responsible for inexact translations of the manual in languages other than English. -
Page 29: Hard Vacuum And Drying Of The Cooling Circuit
Do not use oxygen in the place of nitrogen as a test agent, since this could cause a risk of explosion as well as the certainty of extensive oxidisation in high-temperature areas. 10.5 HARD VACUUM AND DRYING OF THE COOLING CIRCUIT To achieve a hard vacuum in the cooling circuit it is necessary to use a pump capable of generating a high degree of vacuum, i.e. -
Page 30: Environmental Protection
10.7 ENVIRONMENTAL PROTECTION The law implementing the regulations [reg. EEC 2037/00] which govern the use of ozone-depleting substances and greenhouse gases bans the dispersal of refrigerant gases in the environment and requires whoever is in their possession to recover them and, at the end of their useful life, either to return them to the dealer or take them to a suitable waste disposal facility. -
Page 31: Troubleshooting
12 TROUBLESHOOTING On the next pages you will find a list of the most common causes that may cause the chilling unit to fail or malfunction. These causes are broken down according to easily identifiable symptoms. You should be extremely careful when attempting to implement any of the possible remedies suggested: overconfidence can result in injuries, even serious ones, to inexpert individuals. - Page 32 FAULT Possible causes Corrective actions No power supply. Check that power is being supplied The unit does not start. both to the primary and auxiliary circuits. The electronic card is cut off from Check the protections. the power supply. Alarms have been triggered. Check whether any alarms are signalled on the microprocessor control panel, eliminate the causes...
- Page 33 FAULT Possible causes Corrective actions Transducer fault. Check the transducers and the Low condensation pressure. efficiency of the needle pusher on Schrader valves they connected to. Outdoor T too low and/or presence Install the condensation control of strong winds. device and/or protect the unit from prevalent winds.
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Page 34: Water Pressure Drops
FAULT Possible causes Corrective actions Water T too high. Check the thermal load and/or High evaporation pressure. efficiency thermostat function. Check efficiency thermostatic valve. Defrosting absent or incomplete Error in parameter settings. Check the setting of the start and end defrost parameters on the microprocessor. -
Page 35: Summary Technical Data
14 SUMMARY TECHNICAL DATA 14.1 STANDARD VERSION LCP - HS / PS Cooling capacity (1) 51,70 56,4 67.6 74,18 82.82 102.30 111.46 134.64 Total Input power (1) 15,93 17.90 20,4 22.9 26.64 32,30 36,50 43,42 EER (1) 3,25 3,14 3,31 3,23 3,11 3,17... - Page 36 LCP - HS / PS Cooling capacity (1) 14792 166.53 193,63 220,56 238,60 264,30 298.97 314.0 Total Input power (1) 48.42 54,84 66,19 74,60 83,14 98,3 101.96 114,5 EER (1) 3,05 3,04 2,93 2.96 2.87 2,89 2,93 2.73 Cooling capacity (2) 144.86 165.08 197.74 222.23 245.72 268.79 304.5 326.6 Heating capacity (2) 186.26 211.79 252.69 286.12 315.58 345.39 390.66 422.7...
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Page 37: Low Noise Version
14.2 LOW NOISE VERSION LCP - HL / PL Cooling capacity (1) 49.60 53.84 65.05 70.82 78.62 98.03 105.94 127.62 Total Input power (1) 16.22 18,54 20,64 23,56 27,73 33.05 37.82 44.39 EER (1) Cooling capacity (2) 50.86 56.10 66.10 73.18 83.97 101.90 112.13 131.01 Heating capacity (2) 65.22 72.20 84.47 93.76 107.15 130.64 144.33 167.86... - Page 38 LCP - HL / PL Cooling capacity (1) 138.51 153.76 187.63 215.12 232.67 258.62 291.70 304.57 Total Input power (1) 50.51 58.58 66.59 75.13 84.02 91.70 103.37 117.32 EER (1) Cooling capacity (2) 144.86 165.08 197.74 222.23 245.72 268.79 304.50 326.61 Heating capacity (2) 186.26 211.79 252.69 286.12 215.58 245.39 390.66 422.71 Total Input power (2)
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Page 39: Summary Table Of Weights
15 SUMMARY TABLE OF WEIGHTS This drawing shows the points of the unit for which the weights for the basic version were calculated, multi-purpose in configuration without pumps, without tank and empty with treated water. They are shown on the following table. RG66006889-Rev.01... - Page 40 Multi-purpose LCP weights HS-HL- HS-HL- HS-HL- HS-HL- HS-HL- HS-HL- HS-HL- HS-HL- HS-HL- HS-HL- HS-HL- PS-PL PS-PL PS-PL PS-PL PS-PL PS-PL PS-PL PS-PL PS-PL PS-PL PS-PL SIZE FRAME total [kg] 1095 1095 1435 1465 1615 1635 HS-HL- HS-HL- HS-HL- HS-HL- HS-HL- PS-PL PS-PL...
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Page 41: Pumping And Storage Systems
15.1 PUMPING AND STORAGE SYSTEMS LCP units may be equipped with 6 types of pumping systems, complete with expansion tank: - single standard pump - single uprated pump - standard pump and back-up pump - uprated pump and back-up pump - standard pump for combined operation - uprated pump for combined operation. - Page 42 RG66006889-Rev.01...
- Page 43 RG66006889-Rev.01...
- Page 44 40010 Bentivoglio (BO) Via Romagnoli 12/a Tel. 051/8908111 Fax. 051/8908122 Company UNI EN ISO 9001 and OHSAS 18001 certified www.galletti.it...