Galletti MPE series Installation, Use And Maintenance Manual
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Galletti MPE series Installation, Use And Maintenance Manual

4 kw - 76 kw
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INSTALLATION, USE AND MAINTENANCE MANUAL
GB
MPE
4 kW - 76 kW

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  • Page 1 INSTALLATION, USE AND MAINTENANCE MANUAL 4 kW - 76 kW...

  • Page 2: Table Of Contents

    THE MPE SERIES ................... 5.3.4 Changing the operating mode from the keyboard on the unit ....Field of application ................Display and setting of operating parameters ........Models and versions ................5.4.1 Parameters ................... Components lay-out ................Regulation logic ...................
  • Page 3 Serial number of the unit The serial number permits to identify the technical characteristics and the components installed Without this datum it will be impossible to identify the unit correctly Galletti S.p.A. via L.Romagnoli 12/a 40010 Bentivoglio (BO) Italia Made in Italy...

  • Page 4: Safety Symbols

    - Failure to comply with the rules provided in this manual will result in the immediate invalidation of the warranty. - Galletti S.p.A. shall not accept any liability for injury or damage resulting from improper use of the equipment or failure to comply with the directions provided in this manual and on the unit itself.

  • Page 5: The Mpe Series

    The MPE series includes 27 models with different in cooling only and heat pump version: All models are charged with R410A refrigerant. The choice of some options can prevent the choice of some options or oblige the selection of other fields. To contact the Galletti for verification...

  • Page 6: Components Lay-Out

    THE MPE SERIES COMPONENTS LAY-OUT MPE 04 ÷ 08 DESCRIPTION R410A-air heat-exchanger Water safety valve R410A-water heat-exchanger Liquid receiver Fans Pump Water differential pressure switch (fan housing) Compressor Automatic air purge valve Refrigerant filter Expansion vessel (fan housing) Low pressure switch and charge port...
  • Page 7 THE MPE SERIES COMPONENTS LAY-OUT MPE 10 ÷ 15 DESCRIPTION R410A-air heat-exchanger Water safety valve R410A-water heat-exchanger Liquid receiver (fan housing) Fans Pump Water differential pressure switch (fan housing) Compressor Automatic air purge valve Refrigerant filter Expansion vessel (fan housing)
  • Page 8 THE MPE SERIES COMPONENTS LAY-OUT MPE 18 ÷ 27 DESCRIPTION R410A-air heat-exchanger Water safety valve R410A-water heat-exchanger Liquid receiver (fan housing) Fans Pump Water differential pressure switch (fan housing) Compressor Automatic air purge valve Refrigerant filter Expansion vessel (fan housing)
  • Page 9 THE MPE SERIES COMPONENTS LAY-OUT MPE 28 ÷ 40 DESCRIPTION R410A-air heat-exchanger Water safety valve R410A-water heat-exchanger Liquid receiver (fan housing) Fans Pump Water differential pressure switch (fan housing) Compressor Automatic air purge valve Refrigerant filter Expansion vessel (fan housing)
  • Page 10 THE MPE SERIES COMPONENTS LAY-OUT MPE 54 ÷ 66 DESCRIPTION R410A-air heat-exchanger Water safety valve R410A-water heat-exchanger Liquid receiver (fan housing) Fans Pump Water differential pressure switch (fan housing) Compressor Automatic air purge valve Refrigerant filter Expansion vessel (fan housing)
  • Page 11 THE MPE SERIES COMPONENTS LAY-OUT MPE 30 ÷ 45 T DESCRIPTION R410A-air heat-exchanger Water safety valve R410A-water heat-exchanger Liquid receiver (fan housing) Fans Pump Water differential pressure switch (fan housing) Compressor Automatic air purge valve Refrigerant filter Expansion vessel (fan housing)
  • Page 12 THE MPE SERIES COMPONENTS LAY-OUT MPE 54 ÷ 76T DESCRIPTION R410A-air heat-exchanger Water safety valve R410A-water heat-exchanger Liquid receiver (fan housing) Fans Pump Water differential pressure switch (fan housing) Compressor Automatic air purge valve Refrigerant filter Expansion vessel (fan housing)

  • Page 13: Water Circuits

    THE MPE SERIES WATER CIRCUITS OPTIONAL OPTIONAL ONLY FOR MPE 28-66 / 30-45T / 54-76T RANGE OPTIONAL LEGEND Safety valve Expansion vessel Evaporator Pump Water differential pressure switch Drain Water gauge Water charge Air bleed hole Check valve RG66007169 - Rev 00...
  • Page 14 THE MPE SERIES WATER CIRCUITS ONLY FOR MPE 10-27 RANGE NOT AVAILABLE FOR MPE 04-08 OPTIONAL ONLY FOR MPE 10-27 RANGE NOT AVAILABLE FOR MPE 04-08 OPTIONAL OPTIONAL ONLY FOR MPE 28-66 / 30-45T / 54-76T RANGE LEGEND Safety valve...

  • Page 15: 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 within 8 days of the delivery date. Check that the following items are present:...

  • Page 16: Dimensional

    INSPECTION, CONVEYANCE DIMENSIONAL AND SITING DIMENSIONAL MPE 04 ÷ 08 LEGEND Water in 1" female Drain manifold " female Water out 1" female Power supply Ø 28 mm Safety valve discharge outlet provided with rubber ring holder Electric control board Water supply "...
  • Page 17 INSPECTION, CONVEYANCE DIMENSIONAL AND SITING DIMENSIONAL MPE 10 ÷ 15 LEGEND Water in 1" female Drain manifold " female Water out 1" female Power supply Ø 28 mm Safety valve discharge outlet provided with rubber ring holder Electric control board Water supply "...
  • Page 18 INSPECTION, CONVEYANCE DIMENSIONAL AND SITING DIMENSIONAL MPE 18 ÷ 27 LEGEND Water in 1" female Drain manifold " female Water out 1" female Power supply 28 mm Safety valve discharge outlet provided with rubber ring holder Electric control board Water supply "...
  • Page 19 INSPECTION, CONVEYANCE DIMENSIONAL AND SITING DIMENSIONAL MPE 28 ÷ 40 - MPE 30 ÷ 45 T MPE 28-45 WITH BUFFER TANK MPE 30-45 T LEGEND Water in 1" female Drain manifold " female Water out 1" female Power supply Ø 37 mm Safety valve discharge outlet provided with rubber ring holder Electric control board Water supply...
  • Page 20 INSPECTION, CONVEYANCE DIMENSIONAL AND SITING DIMENSIONAL MPE 54 ÷ 66 MPE 54-66 WITH BUFFER TANK LEGEND Water in 2" female Drain manifold " female Water out 2" female Power supply Ø 37 mm Safety valve discharge outlet provided with rubber ring holder Electric control board Water supply "...
  • Page 21 INSPECTION, CONVEYANCE DIMENSIONAL AND SITING DIMENSIONAL MPE 54 ÷ 76T LEGEND Water in 2" female Power supply Water out 2" female Electric control board Drain manifold " female Dampers fastening points (accessory) RG66007169 - Rev 00 All copying, even partial, of this manual is strictly forbidden...

  • Page 22: Siting

    If even only one of the above conditions is not fulfilled, please contact the manufacturer to check for feasibility. In the design of the MPE series, special care has been taken to minimise noise and vibrations transmitted to the ground.

  • Page 23: Installation Clearance Requirements

    INSPECTION, CONVEYANCE DIMENSIONAL AND SITING SITING 2.4.1 INSTALLATION CLEARANCE REQUIREMENTS HEAT EXCHANGER WATER CONNECTION SIDE HEAT EXCHANGER WATER CONNECTION SIDE HEAT EXCHANGER WATER CONNECTION SIDE HEAT EXCHANGER WATER CONNECTION SIDE EXCHANGER SIDE EXCHANGER SIDE DAMPERS SITING N° DAMPERS 04 - 08 10 - 15 DAMPERS 18 - 27...

  • Page 24: Plumbing And Electrical Connections

    PLUMBING AND ELECTRICAL CONNECTIONS PLUMBING CONNECTION All the units belonging to the MPE series are equipped with water differential pressure switch, safety valve, water pressure gauge and automatic filling device and emptying tap. Furthermore, depending on the version, MPE units can be supplied complete with pump, expansion vessel and buffer tank: 3.1.1...

  • Page 25: Filling The System

    PLUMBING AND ELECTRICAL CONNECTIONS PLUMBING CONNECTION 3.1.2 RECOMMENDED WATER CIRCUIT OPTIONAL LEGEND Expansion vessel Safety valve Drain Evaporator Water charge Water differential pressure switch Regulation valve (not supplied) Water gauge Vibration-damping coupling (not supplied) Air bleed hole Mechanical filter (OBLIGATORY) Storage tank Check valve (not supplied) 3.1.3...

  • Page 26: Electrical Connections

    PLUMBING AND ELECTRICAL CONNECTIONS ELECTRICAL CONNECTIONS All operations must be performed by qualified service personnel in accordance with current laws and regulations. For any electrical work on the unit, refer to the electric diagrams supplied with the unit. It is recommended to make sure that: - The characteristics of the mains power supply are adequate for the electrical inputs specified in the table of electrical data.

  • Page 27: Electrical Data

    PLUMBING AND ELECTRICAL CONNECTIONS ELECTRICAL DATA RG66007169 - Rev 00 All copying, even partial, of this manual is strictly forbidden...
  • Page 28 PLUMBING AND ELECTRICAL CONNECTIONS ELECTRICAL DATA MAIN ELECTRICAL CONNECTION OF THE ONE-PHASE AND THREE-PHASE UNITS N PE 1 50 S T N P 3+N 50 DIAGRAM SHOWING ELECTRICAL CONNECTIONS BETWEEN MPE AND PCDS / PCD REMOTE CONTROL PANEL PCD POWER SUPPLY ELECTRIC BOARD TERMINAL ELECTRIC BOARD TERMINAL...

  • Page 29: Starting Up

    STARTING UP THE FIRST START UP MUST BE CARRIED OUT EXCLUSIVELY BY QUALIFIED PERSONNEL AND AUTHORIZED BY GALLETTI SPA (SEE WARRANTY SHEET ATTACHED). At first start-up of the installation make sure to comply with current national regulations. PRELIMINARY CHECKS When starting up the unit for the first time or after a seasonal period of quiescence, it is advisable to have the following checks performed by specialised personnel: - Check that the electrical connections have been made properly and that all the terminals are securely tightened.

  • Page 30: Microprocessor Control

    MICROPROCESSOR CONTROL DESCRIPTION OF CONTROL PANEL The control panel of the unit enables the user to display and set the unit's operating parameters and read the main operating data. In addition it indicates what mode (cooling or heating) the unit is operating in and signals any alarms that may have been triggered. Any new settings saved are stored in the card and used the next time the unit is switched on, even following a power failure.

  • Page 31: Information About Equipment Status

    MICROPROCESSOR CONTROL USING THE CONTROL PANEL 5.2.2 INFORMATION ABOUT EQUIPMENT STATUS Information regarding the status of the unit is provided by means of LEDs on the display. Meaning of LEDs on the display: SIMBOL COLOR MEANING with LED ON with LED OFF Amber Compressor 1 ON Start up request...

  • Page 32: Display And Setting Of Operating Parameters

    Do not change the values of the other parameters; this could undermine the efficiency of the unit and its safety devices. This operation should be left in the hands of specialised personnel or a Galletti service centre. 1: Hold the “Prg” and “sel” keys pressed together for, at least, 5 s;...

  • Page 33: Set Point Compensation

    MICROPROCESSOR CONTROL SET POINT COMPENSATION Operating setpoint correction depending on outdoor temperature. COOLING ONLY UNITS This logic, though not implemented as a standard feature in this type of unit, may be used to reduce its consumption of energy when outdoor temperatures are less hot, situations in which the demand for cooling may be assumed to be lower.

  • Page 34: Signals And Alarms

    MICROPROCESSOR CONTROL SIGNALS AND ALARMS LIST OF INDICATIONS d1 Defrost status (MPE H only) During the defrosting cycle, the message "d1" is displayed in turn with the inlet water temperature (Win). dF1 Defrost error (MPE H only) If the defrosting cycle ends because the maximum time has elapsed, not because the temperature threshold has been reached, the message "dF1" will be displayed.

  • Page 35: Operating Limits

    OPERATING LIMITS The graphs below illustrate the operating limits of MPE units (in the case of continuous operation) in relation to the outlet water temperature and outdoor air temperature. OPERATING LIMITS CHILLER HEAT PUMP Inlet water temperature (°C) Outlet water temperature (°C) Thermal differential of water (°C) Outdoor air temperature (°C) For transitory periods (e.g.

  • Page 36: Operating Limits In Heat Pump Mode

    Temperatura Aria esterna OUTDOOR AIR TEMPERATURE THERMAL CARRYING FLUID The units belonging to the MPE series can work with mixtures of water and up to 30% ethylene glycol. All copying, even partial, of this manual is strictly forbidden RG66007169 - Rev 00...

  • Page 37: Control And Safety Devices

    CONTROL AND SAFETY DEVICES All the control and safety devices are set and tested in the factory before the unit is dispatched. CONTROL DEVICES 7.1.1 SERVICE THERMOSTAT The service thermostat activates and deactivates the compressor according to the demand for chilled water (cooling mode) or heated water (heat pump mode), as determined by a sensor installed on the water exchanger inlet.

  • Page 38: Routine Maintenance And Checks

    ROUTINE MAINTENANCE AND CHECKS It is recommended to carry out periodic checks of the safety devices (pressure switches and safety valves) and verify the absence of refrigerant leaks. After the first start-up, the periodic checks must be carried out in conformity with the schedule and the manners provided for by current national regulations.

  • Page 39: Technical Features

    TECHNICAL FEATURES 10.1 WATER CHILLERS RATED TECHNICAL DATA RG66007169 - Rev 00 All copying, even partial, of this manual is strictly forbidden...

  • Page 40: Heat Pumps Rated Technical Data

    TECHNICAL FEATURES 10.1 WATER CHILLERS RATED TECHNICAL DATA All copying, even partial, of this manual is strictly forbidden RG66007169 - Rev 00...
  • Page 41 TECHNICAL FEATURES 10.2 HEAT PUMPS RATED TECHNICAL DATA RG66007169 - Rev 00 All copying, even partial, of this manual is strictly forbidden...
  • Page 42 TECHNICAL FEATURES 10.2 HEAT PUMPS RATED TECHNICAL DATA All copying, even partial, of this manual is strictly forbidden RG66007169 - Rev 00...

  • Page 43: Cooling Circuits

    COOLING CIRCUITS LEGEND N° COMPONENT SIMBOL Compressor Evaporator Condensator Thermostatic valve Electrical fan Filter Sight glass Solenoid valve High pressure switch Low pressure switch High pressure gauge Low pressure gauge Service connection Diff. pressure switch Check valve 4 Way diversion valve Liquid separator Liquid receiver Pressure transducer...
  • Page 44 COOLING CIRCUIT 11.1 MPE 04 ÷ 07 WATER CHILLER COOLING CIRCUIT 11.2 MPE 04 ÷ 07 WATER CHILLER COOLING CIRCUIT WITH ELECTRONIC VALVE All copying, even partial, of this manual is strictly forbidden RG66007169 - Rev 00...
  • Page 45 COOLING CIRCUIT 11.3 MPE H 04 ÷ 07 HEAT PUMP COOLING CIRCUIT 11.4 MPE H 04 ÷ 07 HEAT PUMP COOLING CIRCUIT WITH ELECTRONIC VALVE RG66007169 - Rev 00 All copying, even partial, of this manual is strictly forbidden...
  • Page 46 COOLING CIRCUIT 11.5 MPE 08 ÷ 27 WATER CHILLER COOLING CIRCUIT OPTIONAL NOT PRESENT IN MPE 08-15 NOT AVAILABLE FOR MPE 08 OPTIONAL NOT AVAILABLE FOR MPE 08 OPTIONAL NOT AVAILABLE FOR MPE 08 11.6 MPE 08 ÷ 27 WATER CHILLER COOLING CIRCUIT WITH ELECTRONIC VALVE OPTIONAL NOT PRESENT IN MPE 08-15 NOT AVAILABLE FOR MPE 08...
  • Page 47 COOLING CIRCUIT 11.7 MPE H 08 ÷ 27 HEAT PUMP COOLING CIRCUIT NOT PRESENT IN MPE 08-15 OPTIONAL NOT AVAILABLE FOR MPE 08 OPTIONAL NOT AVAILABLE FOR MPE 08 11.8 MPE H 08 ÷ 27 HEAT PUMP COOLING CIRCUIT WITH ELECTRONIC VALVE NOT PRESENT IN MPE 08-15 OPTIONAL NOT AVAILABLE...
  • Page 48 COOLING CIRCUIT 11.9 MPE 28 ÷ 66 WATER CHILLER COOLING CIRCUIT OPTIONAL OPTIONAL OPTIONAL 11.10 MPE 28 ÷ 66 WATER CHILLER COOLING CIRCUIT WITH ELECTRONIC VALVE OPTIONAL OPTIONAL OPTIONAL All copying, even partial, of this manual is strictly forbidden RG66007169 - Rev 00...
  • Page 49 COOLING CIRCUIT 11.11 MPE H 28 ÷ 66 HEAT PUMP COOLING CIRCUIT OPTIONAL OPTIONAL 11.12 MPE H 28 ÷ 66 HEAT PUMP COOLING CIRCUIT WITH ELECTRONIC VALVE OPTIONAL OPTIONAL RG66007169 - Rev 00 All copying, even partial, of this manual is strictly forbidden...
  • Page 50 COOLING CIRCUIT 11.13 MPE 30 ÷ 76 T HEAT PUMP COOLING CIRCUIT OPTIONAL OPTIONAL OPTIONAL 11.14 MPE 30 ÷ 76 T HEAT PUMP COOLING CIRCUIT WITH ELECTRONIC VALVE OPTIONAL OPTIONAL OPTIONAL All copying, even partial, of this manual is strictly forbidden RG66007169 - Rev 00...
  • Page 51 COOLING CIRCUIT 11.15 MPE H 30 ÷ 76 T HEAT PUMP COOLING CIRCUIT OPTIONAL OPTIONAL 11.16 MPE H 30 ÷ 76 T HEAT PUMP COOLING CIRCUIT WITH ELECTRONIC VALVE OPTIONAL OPTIONAL RG66007169 - Rev 00 All copying, even partial, of this manual is strictly forbidden...

  • Page 52: 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 service centre or a qualified technician for help. Who can take...
  • Page 53 TROUBLESHOOTING Who can take corrective action Possible control SYMPTOM Cooling Heating U = User panel indication Probable cause Possib le remedy S = specialised personnel D The compressor Pressure switch failure Check and replace does not start because the maximum pressure Excessive refrigerant charge Discharge the excess gas switch has tripped...
  • Page 54 TROUBLESHOOTING Who can take corrective action Possible control SYMPTOM Cooling Heating U = User panel indication Probable cause Possible remedy S = specialised personnel G Lack of gas Cooling circuit leak Check the cooling circuit using a leak detector after pressurising the circuit to approximately 4 bars.
  • Page 55 NOTES RG66007169 - Rev 00 All copying, even partial, of this manual is strictly forbidden...
  • Page 56 40010 Bentivoglio (BO) Via Romagnoli 12/a Tel. 051/8908111 - Fax. 051/8908122 Company UNI EN ISO 9001 and OHSAS 18001 certified...

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