DryGair DG12 User manual

November 2017
Ver. 11/17
DryGair Dehumidification Unit
Installation, Operation and Maintenance
Manual (EU)

DryGair Energies Ltd.
ii
DryGair Energies Ltd. —www.drygair.com
8 Hamanofim St., Herzliya Pituach 46733
Tel.: [phone], Fax: [phone]
: drygair.energies
Proprietary and Confidential
Copyright © 2017 by DryGair Energies Ltd.
All rights reserved. No part of this manual may be reproduced or copied in any form by any means-
graphic, electronic, or mechanical, including photocopying, typing or information retrieval systems-
without written permission of DryGair Ltd.

DryGair Dehumidification Unit
Table of Contents
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TABLE OF CONTENTS
1. INTRODUCTION ______________________________________ 1
2. SAFETY _____________________________________________ 3
3. UNIT OVERVIEW _____________________________________ 7
4. INSTALLATION______________________________________ 10
5. UNIT PARTS AND COMPONENTS ______________________ 24

Table of Contents
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6. UNIT OPERATION ___________________________________ 33
7. MAINTAINING THE UNIT ______________________________ 40
8. TROUBLESHOOTING AND REPAIRING THE UNIT _________ 43
9. APPENDICES _______________________________________ 45
10. COMMENTS AND NOTES _____________________________ 62

DryGair Dehumidification Unit
List of Figures
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LIST OF FIGURES
Figure 2-1. High Voltage warning label _________________________________________ 5
Figure 2-2. Hearing Protection required label ____________________________________ 5
Figure 2-3. Hot Surface caution label___________________________________________ 5
Figure 2-4. Lift from Here notice_______________________________________________ 5
Figure 2-5. DryGair Identification label__________________________________________ 6
Figure 3-1. DryGair unit (front view) ____________________________________________ 9
Figure 3-2. DryGair unit (rear view) ____________________________________________ 9
Figure 4-1. Transferring the unit______________________________________________ 19
Figure 4-2. Water drain outlet________________________________________________ 22
Figure 4-3. Electrical switchboard and grid terminal block __________________________ 23
Figure 5-1. Temperature and humidity sensor ___________________________________ 24
Figure 5-2. Sensor unit_____________________________________________________ 24
Figure 5-3. Defrost temperature sensor ________________________________________ 25
Figure 5-4. Electrical compartment ___________________________________________ 26
Figure 5-5. Compressor (front view)___________________________________________ 29
Figure 5-6. Compressor (rear view) ___________________________________________ 29
Figure 5-7. Oil pressure protector and switches__________________________________ 30
Figure 5-8. Heat exchange compartment_______________________________________ 30
Figure 5-9. Expansion valve_________________________________________________ 31
Figure 5-10. Sight glass ____________________________________________________ 31
Figure 5-11. Blowing fans___________________________________________________ 32
Figure 6-1. Humidistat controller _____________________________________________ 36
Figure 9-1. Standard unit ___________________________________________________ 46
Figure 9-2. Small unit ______________________________________________________ 47
Figure 9-3. Standard split unit _______________________________________________ 48
Figure 9-4. Small split unit __________________________________________________ 49
Figure 9-5. Standard unit with heating & cooling _________________________________ 50
Figure 9-6. Small unit with heating & cooling ____________________________________ 51
Figure 9-7. Standard split unit with heating & cooling _____________________________ 52
Figure 9-8. Small split unit with heating & cooling ________________________________ 53
Figure 9-9. Warm climate unit _______________________________________________ 54
Figure 9-10. Four-direction canopy ___________________________________________ 55
Figure 9-11. Air distributor module (4-way canopy) _______________________________ 56
Figure 9-12. One-direction canopy____________________________________________ 57
Figure 9-13. Air distribution panel ____________________________________________ 58
Figure 9-14. Split unit ______________________________________________________ 59
Figure 9-15. Split unit connecting tubes________________________________________ 59
Figure 9-16. Air heating option _______________________________________________ 61

List of Tables
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LIST OF TABLES
Table 4-1. Parts and Accessories ____________________________________________ 20

DryGair Dehumidification Unit
Introduction
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1. INTRODUCTION
This manual provides instructions for operating the DryGair unit in a correct
and safe way, including installation instructions, maintenance procedures
and unit troubleshooting.
As DryGair continuously develops its machines to their maximum potential,
this manual, though completely up to date when issued, is subject to changes
without notice.
1.1 Before You Begin
Before you begin working with the DryGair dehumidification unit, read the
following
•This manual: the DryGair dehumidification Operation and Maintenance
Manual provides information and procedures for operating the unit, as
well as maintenance, troubleshooting and repair procedures.
▪The safety instructions.
▪Conventions: explains the symbols used in this manual.
Before beginning a procedure:
•Read the procedure through to the end. Thorough understanding of the
entire procedure prevents unnecessary loss of time and error.
1.2 Further Information
For further information, contact DryGair at:
Email: [e-mail]
Website: www.drygair.com

Introduction
Conventions
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1.3 Conventions
The following conventions are used in this manual:
Warning
Information given in a “warning” message warns of possible hazard to
personnel and extreme hazard to the unit.
Caution
Information given in a “caution” message refers to the safe operation of
the unit and provides warning where the possibility for damage to the
equipment exists.
Note
Information given in a note describes how the part/unit functions or
provides a tip on how best to use it.

DryGair Dehumidification Unit
Safety
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2. SAFETY
DryGair Energies Ltd. believes that the safety of personnel working with and
around the unit is the most important consideration. The DryGair unit is
equipped with all the safety devices necessary to ensure risk-free use under
standard conditions.
Machine installation, maintenance and adjustments must be performed only
by a qualified technician with expert machine knowledge and that has read
this manual.
Before operating the unit or performing maintenance operations, read and be
familiarized with the safety information.
•Obey and follow all warnings and cautions given in this manual.
•Comply with all approved and established precautions for operating
electrical and mechanical equipment.
•Only qualified and authorized personnel should perform maintenance or
repair tasks.
•Verify the power, and any other connected facilities, are turned off and
disconnected before beginning maintenance procedures, part
replacements, or repairs.
•We advise strict observance of the work safety standard as defined by the
authorities in each country.
DryGair cannot accept responsibility for injury to persons or damage to
objects resulting from not observing safety standards.
2.1 Hazards
Danger: Electrical Shock Hazard. High voltage is present at points throughout the
Unit. Contact with high voltage can result in injury or death. Before performing any
operation related to electricity, open the electric compartment cover, switch off the
Main Power switch and switch off the Circuit Breaker. Doing so ensures no voltage
is present.
Danger: Hot Surface Hazard. The heat exchangers and their pipes, and the
compressor may have a high temperature during unit operation. Do not touch the
compressor and the heat exchanger pipes and coils while the unit is operating.
Verify the unit has cooled down before touching them.
Danger: Bodily Injury Hazard. Be careful not to drop any of the unit parts.
Dropping the Covers might cause bodily injury or damage to the parts.

Safety
Operation Safety Notes
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2.2 Operation Safety Notes
The following safety practices must be complied with:
•CAUTION and WARNING notices posted on the machine and safety
notes in this manual.
•Ensure that all control panels and electrical panels are covered.
•Do not start the unit if any of the safety covers is missing.
•MOVING PARTS –Do not touch the fans during unit operation.
•Do not permit smoking or food in the working area.
•Personnel operating the unit must not remove covers or panels.
•Although the electrical compartment is closed by a door, operator access
to the compartment is strictly forbidden without explicit authorization.
•Ensure that all personnel operating the unit know where the main power
switch is located and what to do in case of electrical emergency.
•Locate approved types of fire extinguishers near the equipment.
2.3 Maintenance Safety Notes
Only authorized personnel are permitted to perform maintenance and repair
tasks. Before performing such a task, read the instructions to ensure you
understand them and that the required precautions and tools are available.
•For high mounted maintenance procedures, use a stable ladder to avoid
high fall injuries.
•To avoid getting caught in moving parts do not lubricate, repair or adjust
the machine while in operation, unless expressly written in the manual.
Stop the machine according to the machine stopping procedure before
lubricating or performing other maintenance tasks.
•Secure electrical wires and cables to prevent damage.
•The protecting doors and covers should not be opened during machine
operation.
•Replace all safety shields after completing set-up, troubleshooting and
maintenance procedures.