HIdRos GHE Series Technical Manual
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HIdRos GHE Series Technical Manual

Dehumidifiers for radiant cooling systems with heat recovery
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DEHUMIDIFIERS FOR RADIANT COOLING SYSTEMS WITH HEAT RECOVERY
GHE
SERIE
TECHNICAL MANUAL
Multiple instructions:
the instructions before
the unit

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Summary of Contents for HIdRos GHE Series

  • Page 1 DEHUMIDIFIERS FOR RADIANT COOLING SYSTEMS WITH HEAT RECOVERY SERIE TECHNICAL MANUAL Multiple instructions: the instructions before the unit...
  • Page 2 Declaration of conformity MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...
  • Page 3 INDEX 1. INTRODUCTION ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 3.11 ..................................................................3.13 ................................. 3.14 ......................................................................................................................
  • Page 4 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................8.1 Disconnect the unit ......................................................................................................................................................................................MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...
  • Page 5 1. INTRODUCTION 1.1 Preliminary information 1.2 Aim and content of the manual 1.3 How to store this manual 1.4 Manual Update 1.5 How to use this manual MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 6: Potential Risks

    1.6 Potential Risks POTENTIAL LOCATION OF METHOD OF INJURY PRECAUTIONS RISK RISK Burns. unit enclosure unit. open. Entire unit Entire unit MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 7: Action Required

    1.7 General Description of Symbols Used BANNED WARNING ACTION REQUIRED MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 8: Electrical Hazard

    1.8 Safety symbols used GENERAL RISK ELECTRICAL HAZARD MOVING PARTS HOT SURFACES SHARP SURFACES EARTH CONNECTION READ AND UNDERSTAND THE INSTRUCTIONS RECOVER OR RECYCLE MATERIAL 1.9 Limitations and prohibited use MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...
  • Page 9 Manufacturer: PD322111 123456 Modello Matricola Model Serial number 7/2017 Categoria PED Data di fabbricazione PED Category Manifacture date 2088 Tipo refrigerante Gruppo fluido Refrigerant type Fluid group Carica refrigerante Equivalente Refrigerant charge Equivalente 230V-1ph-50Hz 6,00 A 1,20 kW Tensione-Fasi-Frequenza F.L.A. (A) F.L.I.

  • Page 10: Warning Re Potentially Hazardous Toxic Substances

    2. SAFETY 2.1 Warning re potentially hazardous toxic substances • • ENVIRONMENTAL PROTECTION: 2.1.3 Persistence and degradation 2.1.4 Effects of discharges 2.1.5 Exposure controls and personal protection 2.1.6 Professional exposure limits: R410A R410A R134A R134A 2.2 Refrigerant handling MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev.
  • Page 11 2.3 Prevent inhalation of high vapor concentration 2.4 Procedures to be adopted in the event of accidental release of refrigerant 2.5 Main Toxicological Information Regarding the Type of refrigerant used 2.5.1 Inhalation sphere. 2.5.2 Contact with skin 2.5.3 Contact with eyes 2.5.4 Ingestion 2.6 First Aid Measures 2.6.1 Inhalation...

  • Page 12: Technical Characteristics

    2.6.3 Contact with eyes 2.6.4 Ingestion 2.6.5 Further medical treatment 3. TECHNICAL CHARACTERISTICS 3.1 Unit description 3.1.1 Frame 3.1.2 Refrigerant Circuit 3.1.3 Compressor 3.1.4 Heat exchangers 3.1.5 Heat recovery 3.1.6 Water coil 3.1.7 Water condenser 3.1.8 Fans MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev.
  • Page 13 3.1.10 Microprocessor • • • • • • • • • • • 3.1.11 Electrical panel control 3.1.12 Control and Protection Devices 3.1.13 Test MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 14: Accessories Description

    3.2 Accessories description 3.2.1 Remote mechanical hygrostat (HYGR) 3.2.2 Remote control panel (PCRL) 3.2.3 Electronic temperature and humidity probe (RGDD) 3.2.4 Serial interface card RS485 (INSE) MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 15: Main Components

    3.3 Main components Air Filter 3.4 Aeraulic circuit functioning principles Return Air Return Air W.C. Fresh Air MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...
  • Page 16 3.5 Refrigeran circuit layout 3.5.1 Refrigerant circuit functioning principles: MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 17: Operation Mode

    3.6 Operation mode 3.6.1 Summer operation (COMPRESSOR ON) - Renewal + Air Dryers neutral: Fresh Air Return Air W.C. Return Air 3.6.1 Winter operation and middle season (COMPRESSOR OFF) • Return Air W.C. Fresh Air MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev.

  • Page 18: Technical Data

    3.7 Technical Data Models GHE Refrigerant R134A (from the net hygroscopic content of the external air) Total cooling Power (from the net hygroscopic content of the external air) Recovered winter heating power Power supply Compressor absorbed power Supply fan absorbed power (min÷nom÷max) Return fan absorbed power (min÷nom÷max) Supply fan nominal useful prevalence(nom÷max) Return fan nominal useful prevalence (nom÷max)

  • Page 19: Hydraulic Circuit Pressure Drops

    3.8 Hydraulic circuit pressure drops GHE 26 GHE 51 80,0 100,0 90,0 70,0 80,0 60,0 70,0 50,0 60,0 40,0 50,0 30,0 40,0 20,0 30,0 10,0 20,0 Water Flow (l/h) Water Flow (l/h) WINTER (Room conditions 20°C, 50% u.r. - Ambient conditions -5°C, 80% u.r.) GHE 26 GHE 51 Fresh air (m...
  • Page 20 3.10 Fans GHE 26 GHE 26 Supply fan GHE 26 GHE 26 Exhaust fan MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...
  • Page 21 GHE 51 GHE 51 Supply fan GHE 51 GHE 51 Exhaust fan MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 22: Operation Limits

    3.11 Operation limits Winter operation Ambient temperature (°C) Summer operation Ambient temperature (°C) MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 23: Sound Data

    3.12 Sound Data Sound Data Octave band (Hz) Mod.26 dB(A) dB(A) Sound Data Octave band (Hz) Mod.51 dB(A) dB(A) MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 24: Installation

    3.13 Safety devices 3.13.1 High pressure switch 3.13.2 Defrost probe 3.13.3 Defrosting V/~/Hz V/~/Hz V/~/Hz V/~/Hz 4. INSTALLATION 4.1 General safety guidelines and and use of symbols tion. MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 25: Health And Safety Considerations

    4.2. Health and safety Considerations 4.3 Personal protective equipment When operating and maintaining the unit, use the following personal protective equipment listed below, required by law. Protective footwear. Eye protection. Protective gloves. Respiratory protection. Hearing protection. MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev.
  • Page 26 4.4 Inspection Before accepting the unit check: In Case of Damage 4.5 Storage 4.6 Unpacking Packaging could be dangerous for the operators. The packaging materials should be seperated and sent for disposal or possible recycling to specialist waste companies. MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev.

  • Page 27: Lifting And Handling

    4.7 Lifting and handling 4.8 Location and minimum technical clearances The unit has to be installed such that maintenance and repair is possible. The warranty does not cover costs for the provision of lifting apparatus, platforms or other lifting systems required to perform repairs during warranty period. The installation site should be chosen in accordance with EN 378-1 and 378-3 standards.
  • Page 28 4.9 Condensate draining connections 4.10 Water coil hydraulic connection unit. 4.11 How to vent the unit MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...
  • Page 29 4.12 Ductwork unit connection Fresh Air RECOMMENDED AIR SPEED Model Ø Distribution duct (mm) Area (m Air speed (m/s) GHE 26 GHE 51 Ø Return and exhaust ducts (mm) Area (m Air speed (m/s) GHE 26 GHE 51 Ø Return and exhaust ducts (mm) Area (m Air speed (m/s) GHE 26...
  • Page 30 4.13 Serial interface card RS485 (INSE) 4.14.1 Supply and exhaust fan adjusting trimmers MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...
  • Page 31 4.15 Filter extraction MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...
  • Page 32 4.16 Heat recovery extraction MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 33: Frost Protection

    4.17 Electric connections: preliminary safety information FROST PROTECTION MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...
  • Page 34 4.18 Electrical data Model Power supply Control board Auxiliary circuit Fans power supply Line section PE section present in the units. 4.19 How to connect the power supply MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 35: Electric Connections

    4.20 Electric connections 4.20.1 Unit combined with mechanical thermohygrostat (HYGR) POWER SUPPLY SEASONAL SUMMER/WINTER REMOTE SWITCH ø HYGRO-THERMOSTAT ø °C ø ø ø REMOTE ON / OFF WATER PUMP MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 36: Remote Control Panel

    AMBIENT HYGROSTAT (UA) Functioning in summer mode Functioning in winter mode AMBIENT THERMOSTAT (TA) Functioning in summer mode Functioning in winter mode REMOTE CONTROL PANEL 4.20.2 GHE unit combined with electronic probe (RGDD) AMBIENT ELECTRONIC PROBE (+) (-) (+) (-) +24V -24V DI C.

  • Page 37: Unit Start-Up

    POWER SUPPLY REMOTE ON / OFF SEASONAL SUMMER/WINTER REMOTE SWITCH It is MANDATORY WATER PUMP REMOTE CONTROL PANEL 5. UNIT START UP 5.1 Preliminary checks 5.1.1 Before start-up MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 38: Description Of The Control Panel

    • • • • • • • • • • • • • 5.2 Description of the control panel 5.2.1 Display icons ICON FUNCTION Icon ON when the display show a value of temperature or pression. (°C = Celsius degrees; °F = Fahrenheit degrees; BAR = pression in Bar; PSI = pression in Psi) Time frame between defrosts.
  • Page 39 5.2.2 Keys function FUNCTION M Press and release: SET Press and release in the main display: Press for 3 seconds and release in the main display: tbfr Tamb tpre In the upper line TOn TOff UOff MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev.
  • Page 40 5.3 Remote control panel 5.3.1 Installation in the unit. MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...
  • Page 41 5.3.2 Display icons ICON FUNCTION 5.3.3 Keys function FUNCTION M Press and release: SET Press and release in the main display: Press for 3 seconds and release in the main display: tbfr Tamb tpre In the upper line TOn TOff UOff MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev.
  • Page 42 FUNCTION 5.4 Mechanical ambient hygro-thermostat (HYGR) 127 mm HYGRO-THERMOSTAT °C 5.5 Electronic ambient probe (RGDD) 120 mm MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 43: Switch The Unit On

    6. USE 6.1 Switch the unit on 6.1.1 Summer mode Press the 6.1.2 Winter mode Press the MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...
  • Page 44 6.2 Stop 6.2.1 Summer mode 6.2.2 Winter mode 6.3 Stand-by 6.4 How to change the set points MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 45: Acoustic Signal Silencing

    SEtU SEtI SEtC SEtH 6.4.1 Adjustable parameters Label Function Adjustment limit Default value SEt U SEt C SEt H 6.5 Acoustic signal silencing 6.6 Displaying during an alarm • • • • MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev.

  • Page 46: Maintenance Of The Unit

    6.7 Alarm reset Press the Reset alarms: Non reset alarms: 7. MAINTENANCE OF THE UNIT 7.1 General warnings 7.2 Drive access MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 47: Periodical Checks

    7.3 Periodical checks 7.3.1 Every 6 months 7.3.2 End of seasons or unit switched off: 7.4 Refrigerant circuit repair MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...
  • Page 48 Therefore: 8. DECOMMISSIONING 8.1 Disconnect the unit 8.2 Disposal, recovery and recycling 8.3 RAEE Directive (only UE) MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 49: Diagnosis And Troubleshooting

    9. DIAGNOSIS AND TROUBLESHOOTING Electronic Code Alarm description Cause Solution sensor AhiP APBa APBr APbf APBu APBc APBd AtFr AtMr Atdf AHFr MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

  • Page 50: Dimensional Drawings

    10.DIMENSIONAL DRAWINGS GHE 26 MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...
  • Page 51 GHE 51 MTEC.4641.IT-B-1 Manuale uso e manutenzione serie GHE Italiano Rev. D 02-2021...

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