HIdRos GH Series Technical Manual
  1. Manuals
  2. Brands
  3. HIdRos Manuals
  4. Dehumidifier
  5. GH Series
  6. Technical manual

HIdRos GH Series Technical Manual

Dehumidifiers for radiant cooling system
Hide thumbs
Table of Contents

Advertisement

Quick Links

Incorporated in this document are the following:
• Declaration of conformity
• Technical manual
• Dimensional drawing
Multiple instructions:
Consult the specific part
MTEC.4680.GB-B-1 Operation and maintenance manual GH serie English Rev. B 08-2017
DEHUMIDIFIERS FOR RADIANT COOLING SYSTEM
TECHNICAL MANUAL
GH
SERIE
Read and understand
the instructions before
undertaking any work on
the unit
Original Instructions

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the GH Series and is the answer not in the manual?

Questions and answers

Related Manuals for HIdRos GH Series

Summary of Contents for HIdRos GH Series

  • Page 1 DEHUMIDIFIERS FOR RADIANT COOLING SYSTEM SERIE TECHNICAL MANUAL Incorporated in this document are the following: • Declaration of conformity • Technical manual • Dimensional drawing Read and understand Multiple instructions: the instructions before Consult the specific part undertaking any work on the unit MTEC.4680.GB-B-1 Operation and maintenance manual GH serie English Rev.
  • Page 2 Reproduction, data storage and transmission, even partial, of this publication, in any form, without the prior written authorisation of the Com- pany, is prohibited. The Company can be contacted for all inquiries regarding the use of its products. The Company follows a policy of continuous product development and improvement and reserves the right to modify specifications, equipment and instructions regarding use and maintenance at any time, without notice.

  • Page 3: Table Of Contents

    Dehumidifiers for radiant cooling system INDICE 1. INTRODUCTION ....................................5 1.1 Preliminary information ..............................5 1.2 Aim and content of the manual ............................5 1.3 How to store this manual ..............................5 1.4 Manual updates ................................5 1.5 How to use this manual ..............................5 1.6 Potential risks ..................................
  • Page 4 Dehumidifiers for radiant cooling system 6.4 Displaying during an alarm ............................33 7. MAINTENANCE OF THE UNIT ................................45 7.1 General warnings ................................45 7.2 Drive access .................................. 45 7.3 Periodical checks ................................45 7.4 Refrigerant circuit repair ..............................46 8.

  • Page 5: Introduction

    Dehumidifiers for radiant cooling system 1. INTRODUCTION 1.1 Preliminary information Reproduction, storage or transmission of any part of this publication in any form, without the prior written consent of the Company, is pro- hibited. The unit to which these instructions refer, is designed to be used for the the purposes described and to be operated in accordance with these instructions.

  • Page 6: Potential Risks

    Dehumidifiers for radiant cooling system 1.6 Potential Risks Whilst the unit has been designed to minimize any risk posed to the safety of people who will interact with it, it has not been technically possible to eliminate completely the causes of risk. It is therefore necessary to refer to the requirements and symbolism below: LOCATION OF POTENTIAL RISK METHOD OF INJURY...

  • Page 7: General Description Of Symbols Used

    Dehumidifiers for radiant cooling system 1.7 General Description of Symbols Used Safety symbols combined in accordance with ISO 3864-2: BANNED A black symbol inside a red circle with a red diagonal indicates an action that should not be performed. WARNING A black graphic symbol added to a yellow triangle with black edges indicates danger.

  • Page 8: Safety Symbols Used

    Dehumidifiers for radiant cooling system 1.8 Safety symbols used GENERAL RISK Observe all signs placed next to the pictogram. The failure to follow directions may create a risk situation that may be injurious to the user. ELECTRICAL HAZARD Observe all signs placed next to the pictogram. The symbol indicates components of the unit and actions described in this manual that could create an electrical hazard.

  • Page 9: Unit Identification

    Dehumidifiers for radiant cooling system 1.10 Unit identification Each unit has a rating plate that provides key information regarding the machine. The rating plate may differ from the one shown below as the example is for a standard unit without accessories. For all electrical information not provided on the label, refer to the wiring diagram.

  • Page 10: Safety

    Dehumidifiers for radiant cooling system 2. SAFETY 2.1 Warning re potentially hazardous toxic substances 2.1.1 Identification of the Type of Refrigerant Fluid Used: R407C: • Difluoromethane (HFC32) 23% by weight CAS No.: 000075-10-5 • Pentafluoroethane (HFC125) 25% in peso CAS No.: 000354-33-6 •...

  • Page 11: Procedures In The Event Of Accidental Release Of Refrigerant

    Dehumidifiers for radiant cooling system 2.3 Prevent inhalation of high vapor concentration Atmospheric concentrations of refrigerant must be minimized and kept to a level that is below the occupational exposure limit. Vapor is heavier than air and can form dangerous concentrations near the ground where the ventilation rate is lower. Always ensure adequate venti- lation.

  • Page 12: Unit Description

    Dehumidifiers for radiant cooling system 2.6.5 Further medical treatment Treat symptoms and carry out support therapy as indicated. Do not administer adrenaline or similar sympathomimetic drugs following exposure, due to the risk of cardiac arrhythmia. 3. TECHNICAL CHARACTERISTICS 3.1 Unit description The dehumidifiers are high performance units, equipped with robust galvanised steel frame, properly designed to operate in combination with radiant cooling systems.

  • Page 13: Accessories

    Dehumidifiers for radiant cooling system removed for differential disposal, class G3, according to EN 779:2002. 3.1.9 Microprocessor All units are equipped with a microprocessor for controlling the timing of the compressor, defrosting cycles and alarms. A special card with light signals indicates the presence of the supply voltage, the activation of defrosting cycle or the presence of an alarm. 3.1.10 Electric box The electric switch board is made according to electromagnetic compatibility norms CEE 73/23 and 89/336.

  • Page 14: Unit Components

    Dehumidifiers for radiant cooling system 3.4 Unit components 3.4.1 Unit components standard version 3.4.2 Unit components WZ version Air filter Compressor Pre-cooling coil Electronic card Evaporator Condenser Bracket Condensing drain Condenser water MTEC.4680.GB-B-1 Operation and maintenance manual GH serie English Rev.

  • Page 15: Refrigerant Circuit Layout

    Dehumidifiers for radiant cooling system 3.5 Refrigerant circuit layout 3.5.1 Refrigerant circuit standard version The functioning of the dehumidifier is as follows: the fan takes the air from the ambient (7) and it’s made go through the filter (1) and the pre-cooling water coil (2) where it’s cooled and brought to a condition closed to saturation.
  • Page 16 Dehumidifiers for radiant cooling system 3.5.2 Refrigerant circuit layout WZ version The operation of the dehumidifier is as follows: the fan takes the air from the ambient (7) and it’s made go through the filter (1) and the pre- cooling water coil (2) where it’s cooled and brought to a condition closed to saturation. Now it passes through the evaporating coil (3) where it’s fatherly cooled and dehumidified.

  • Page 17: Technical Data

    Dehumidifiers for radiant cooling system 3.6 Technical data Model GH Refrigerant R134a R407C R407C R407C Refrigerant charge 0,25 Global warming potential (GWP) 1430 1774 1774 1774 Equivalent CO charge 0,36 1,24 1,77 3,02 Dehumidification capacity l/24h 20,1 48,5 87,2 Power supply V/Ph/Hz 230/1/50 230/1/50...

  • Page 18: Hydraulic Circuit Pressure Drops

    Dehumidifiers for radiant cooling system 3.7 Hydraulic circuit pressure drops Mod 25 Mod 50 50 WZ 25 WZ Water Flow (l/h) Water Flow (l/h) Mod 100 Mod 200 100 WZ 200 WZ 1000 1100 1200 Water Flow (l/h) Water Flow (l/h) MTEC.4680.GB-B-1 Operation and maintenance manual GH serie English Rev.

  • Page 19: Operation Limits

    Dehumidifiers for radiant cooling system 3.8 Operation limits Air Temperature (°C) Water Temperature (°C) The units MUST be used within the operation limit indicated in the diagrams. The warranty will be invalidated if the units are used in ambient conditions outside the limits reported. If there is the necessity to operate in different condi- tions, please contact our technical office.

  • Page 20: Safety Devices

    Dehumidifiers for radiant cooling system 3.10 Safety devices 3.10.1 High pressure switch The high pressure switch stops the unit when the condensing pressure is higher than the set value. The restart is manual (you need to press the button on the pressure switch) and it can be carried out only when the pressure is under the value indicated by the differential set. 3.10.2 Defrost thermostat It’s a device which signals to the electronic control, the necessity to make the defrost cycle.

  • Page 21: Health And Safety Considerations

    Dehumidifiers for radiant cooling system 4.2. Health and safety Considerations The workplace must be kept clean, tidy and free from objects that may prevent free movement. Appropriate ligh- ting of the work place shall be provided to allow the operator to perform the required operations safely. Poor or too strong lighting can cause risks.

  • Page 22: Inspection

    Dehumidifiers for radiant cooling system 4.4 Inspection When installing or servicing the unit, it is necessary to strictly follow the rules reported on this manual, to conform to all the specifications of the labels on the unit, and to take any possible precautions of the case. Not observing the rules reported on this manual can create dangerous situations.

  • Page 23: Lifting And Handling

    Dehumidifiers for radiant cooling system 4.7 Lifting and handling When unloading the unit, it is strongly recommended that sudden movements are avoided in order to protect the refrigerant circuit, copper tubes or any other unit component. Units can be lifted by using a forklift or, alternatively, using belts. Take care that the method of lifting does not damage the side panels or the cover.

  • Page 24: Condensate Draining Connections

    4.11 How to vent the unit For a correct operation of the system it is mandatory to remove the air from the hydraulic circuit. To do that Hidros recommend to use the proper vent valve positioned in front of the unit (see picture).

  • Page 25: Ductwork Unit Connection

    Dehumidifiers for radiant cooling system 4.12 Ductwork unit connection All the units are provided of ductable centrifugal fans. In case of ducts, please use a flange with overall dimensions larger than the suction opening on the front on the unit (refer to the dimensional drawing of the unit). Mod.
  • Page 26 Dehumidifiers for radiant cooling system Mod. 100 1000 1100 1200 Air flow (m Mod. 200 1500 1600 1700 1800 1900 2000 2100 2200 Air flow (m To allow the correct functioning of the dehumidifiers, it’s important to grant a constant air flow to the unit. This flow must be close to the nominal value (see the drawing).

  • Page 27: Standard Version: Remote Mechanical Hygrostat Connection (Hygr.20)

    Dehumidifiers for radiant cooling system 4.13 GH standard version: Remote mechanical hygrostat connection (HYGR.20) Hygrostat/Thermostat Common 4.14 GH- WZ version : Remote mechanical hygrostat connection (HYGR.30) Hygrostat Common ø HYGRO-THERMOSTAT ø °C ø Summer ø Winter ø Summer/Winter switch (not supplied) MTEC.4680.GB-B-1 Operation and maintenance manual GH serie English Rev.

  • Page 28: Filter Extraction

    Dehumidifiers for radiant cooling system 4.15 Filter extraction The filter extraction of a dehumidifier GH 50 is made unscrewing the two screws which fix it to the frame, as shown in the following images, for the GH100-200, please, follow the below procedure: 1.

  • Page 29: Electric Connections: Preliminary Safety Information

    Dehumidifiers for radiant cooling system 4.16 Electric connections: preliminary safety information The electric panel is located inside the unit at the top of the technical compartment where the various components of the refrigerant circuit are also to be found. To access the electrical board, remove the front panel of the unit: Power connections must be made in accordance to the wiring diagram enclosed with the unit and in accordance to the norms in force.

  • Page 30: Electrical Connections

    Dehumidifiers for radiant cooling system Model Power supply V/~/Hz 230/1/50 230/1/50 230/1/50 230/1/50 Control board V/~/Hz Auxiliary circuit V/~/Hz 230/1/50 230/1/50 230/1/50 230/1/50 Fans power supply V/~/Hz 230/1/50 230/1/50 230/1/50 230/1/50 Line section PE section Electric data may change for updating without notice. It is therefore necessary to refer always to the wiring diagram present in the units.
  • Page 31 Dehumidifiers for radiant cooling system 4.18.1 Remote wiring connections (compulsory) The numbers of terminals block may change without notice. For links is therefore necessary to ALWAYS make the wiring diagram supplied along with the unit. REMOTE ON / OFF (Only WZ versions) To switch the unit on or off from remote control.

  • Page 32: Unit Start Up

    Dehumidifiers for radiant cooling system 5. UNIT START UP 5.1 Preliminary checks Before starting the unit the checks detailed in this manual of the electric supply and connections, the hydraulic system and the refrigerant circuit, should be performed. Start-up operations must be performed in accordance with the instructions detailed in the previous paragraphs. 5.1.1 Before start-up Damage can occur during shipment or installation.

  • Page 33: Use

    Dehumidifiers for radiant cooling system 6. USE 6.1 Unit switch on and first start up 6.1.1 Standard version Place the main line switch (not supplied) to ON. In the case of hygrostat call the fan is activated, and the request to start the compressor (delayed by 3 minutes) is activated too.

  • Page 34: Maintenance Of The Unit

    Dehumidifiers for radiant cooling system 7. MAINTENANCE OF THE UNIT 7.1 General warnings Maintenance can: • Keep the equipment operating efficiently • Prevent failures • Increase the equipment life It is advisable to maintain a record book for the unit which details all operations performed on the unit as this will facilitate troubleshooting.

  • Page 35: Refrigerant Circuit Repair

    Dehumidifiers for radiant cooling system 7.3.2 End of seasons or unit switched off: If you plan to stop the unit for a long period, the hydraulic circuit must be fully emptied, so that there is no more water in the pipes and in the heat exchanger.

  • Page 36: Disposal, Recovery And Recycling

    Dehumidifiers for radiant cooling system 8.2 Disposal, recovery and recycling The frame and components, if unusable, should be taken apart and sorted by type, especially copper and aluminum that are present in large quantities in the machine. All materials must be recovered or disposed in accordance with national regulations. 8.3 RAEE Directive (only UE) •...

  • Page 37: Dimensional Drawings

    Dehumidifiers for radiant cooling system 10.DIMENSIONAL DRAWINGS Dimensional drawing GH 25 - 25WZ MTEC.4680.GB-B-1 Operation and maintenance manual GH serie English Rev. B 08-2017...
  • Page 38 Dehumidifiers for radiant cooling system Dimensional drawing GH 50 - 50WZ MTEC.4680.GB-B-1 Operation and maintenance manual GH serie English Rev. B 08-2017...
  • Page 39 Dehumidifiers for radiant cooling system Dimensional drawing GH 100 - 100WZ MTEC.4680.GB-B-1 Operation and maintenance manual GH serie English Rev. B 08-2017...
  • Page 40 Dehumidifiers for radiant cooling system Dimensional drawing GH 200 - 200WZ MTEC.4680.GB-B-1 Operation and maintenance manual GH serie English Rev. B 08-2017...
  • Page 41 Dehumidifiers for radiant cooling system MTEC.4680.GB-B-1 Operation and maintenance manual GH serie English Rev. B 08-2017...
  • Page 42 Dehumidifiers for radiant cooling system MTEC.4680.GB-B-1 Operation and maintenance manual GH serie English Rev. B 08-2017...
  • Page 43 Dehumidifiers for radiant cooling system MTEC.4680.GB-B-1 Operation and maintenance manual GH serie English Rev. B 08-2017...
  • Page 44 Sede operativa: Via E.Mattei, 20 ▪ cap 35028 ▪ Piove di Sacco (Pd) Italy Tel. +39 049 9731022 ▪ Fax +39 049 5806928 Info@hidros.it ▪ www.hidros.it P.IVA e C.F 03598340283 ▪ R.E.A. PD-322111 REG. IMP. PD 0359834 028 3 ▪ VAT NUMBER: IT 03598340283 ▪ CAPITALE SOCIALE € 1.200.000,00 i.v.

This manual is also suitable for:

Gh25Gh50Gh100Gh200Gh25wzGh50wz ... Show all

Table of Contents