Condair DA 500-4000 Freezer Installation and operating instructions

2605173-0 EN 2211
Dehumidication and Drying
READ AND SAVE THESE INSTRUCTIONS
Desiccant dryer
Condair DA 500-4000 Freezer
ADDENDUM MANUAL

Thank you for choosing Condair
Installation date (MM/DD/YYYY):
Commissioning date (MM/DD/YYYY):
Site:
Model:
Serial number:
Proprietary Notice
This document and the information disclosed herein are proprietary data of Condair Group AG. Neither this docu-
ment, nor the information contained herein shall be reproduced, used, or disclosed to others without the written
authorization of Condair Group AG, except to the extent required for installation or maintenance of recipient's
equipment.
Liability Notice
Condair Group AG does not accept any liability due to incorrect installation or operation of the equipment or due
to the use of parts/components/equipment that are not authorized by Condair Group AG.
Copyright Notice
© Condair Group AG, All rights reserved.
Technical modications reserved

3Contents
Contents
1 Introduction 5
1.1 To the very beginning 5
1.2 Notes on the addendum manual 5
2 For your safety 7
3 Important notes 8
4 Product overview 9
4.1 Product designation 9
4.2 Applications 10
4.3 Operation principle 10
4.4 Product description 11
4.4.1 Casing 11
4.4.2 Rotor 11
4.4.3 Air lters 11
4.4.4 Fans for process- and reactivation air 11
4.4.5 Heater for reactivation air 12
4.4.6 Electrical cabinet 12
4.4.7 Operation Options 12
5 Installation 13
5.1 Installation and service access 13
5.2 Duct connections 13
5.2.1 Wet air duct 13
5.2.2 Reactivation air into the desiccant dryer 14
5.2.3 Process- and dry air ducts 14
5.2.4 Installation schematics 15
5.3 Electrical installation 15
6 Commissioning 16
7 Maintenance 17
7.1 Important notes on maintenance 17
7.2 Filters 18
7.3 Rotor 18
7.4 Rotor seals 19
7.5 Electrical motors 19
7.6 Heater 19
7.7 Rotor drive belt 19
7.8 General summary of maintenance intervals 19
8 Troubleshooting 20
9 Productspecication 21
9.1 Technical Data 21

4Contents
9.2 Dimensions DA 500-4000 Freezer 22
10 Spare parts 23
10.1 Spare parts Condair DA 500 23
11 Built-in components 24
12 EU declaration of conformity 25
13 Appendix 1 – electrical wiring diagram 26

5Introduction
1 Introduction
1.1 To the very beginning
We thank you for having purchased a Condair DA 500 - 4000 Freezer desiccant dryer (for short:
Condair DA).
The Condair DA desiccant dryers incorporate the latest technical advances and meets all recognized
safety standards. Nevertheless, improper use of the Condair DA desiccant dryer may result in danger
to the user or third parties and/or damage to property.
To ensure a safe, proper, and economical operation of the Condair DA desiccant dryer, please observe
and comply with all information and safety instructions contained in this addendum manual.
If you have questions after reading this documentation, please contact your Condair representative.
They will be glad to assist you.
1.2 Notes on the addendum manual
Limitation
The subject of this addendum manual are the Condair DA 500 - 4000 desiccant dryers in their
different versions. The various options and accessories are only described insofar as this is necessary
for proper operation of the equipment. Further information on options and accessories can be obtained
in the respective manuals.
This installation and operation manual is restricted to the installation, operation and maintenance of
the Condair DA desiccant dryer and is meant for well-trainedpersonnelbeingsufcientlyqualied
for their respective work.

6Introduction
Symbols used in this manual
NOTE!
The catchword “NOTE” used in conjunction with the hand symbol designates important notes in this
manual that require special attention.
CAUTION!
The catchword "CAUTION" used in conjunction with the caution symbol in the circle designates notes
in this operation manual that, if neglected, may cause damage and/or malfunction of the unit or
other material assets.
WARNING!
The catchword "WARNING" used in conjunction with the general caution symbol designates safety
and danger notes in this operation manual that, if neglected, may cause to injury to persons.
DANGER!
The catchword "DANGER" used in conjunction with the general caution symbol designates safety and
danger notes in this operation manual that, if neglected, may lead to severe injury or even death
of persons.
Safekeeping
Please safeguard this addendum manual together with the Condair DA installation and operation manual
in a safe place, where it can be immediately accessed. If the desiccant dryer changes hands, the ad-
dendum manual and the installation and operation manual must be passed on to the new operator.
If the documentation gets misplaced, please contact your Condair representative.
Language versions
This addendum manual is available in other languages. Please contact your Condair representative for
information.

7For your safety
2 For your safety
Note: It is mandatory that you observe and follow all the safety information in section 2 of the installation
and operation manual for the Condair DA 500-4000 desiccant dryer.

8Important notes
3 Important notes
Note: It is imperative that you observe and follow the important information on delivery, transport and
storage in section 3 of the installation and operation manual for the Condair DA 500-4000 desiccant dryer.

9Product overview
4 Product overview
4.1 Product designation
The product designation and the most important unit data are found on the specication label xed on
the right side below the operation panel (see example below):
Model DA 500
Serial no. 1927 1901
Manuf. 2022
Voltage 400 V, 50 Hz
Power 4,5 kW
Weight 185 kg
Condair Group AG
Gwattstrasse 17
8808 Pfäfkon
Switzerland
Fig. 1: Specication label

10 Product overview
4.2 Applications
The Condair desiccant dryers are based on the sorption principle (see description of the operating
principle in the installation and operation manual), which removes unwanted humidity from the air at
normal atmospheric pressure. With the Freezer version, Condair offers a special design for the device
sizes DA 500-4000, specially designed for use in the deep-freeze area. Compared to the standard DA
500-4000 dryer series, this device series has, among other features a 100 mm thick insulated AISI 304
stainless steel housing.
The desiccant dryer is designed for continuous operation and can be used at air temperatures from
-25 °C to +20 °C and humidity values of up to 100% RH.
Note: For operating conditions outside the above temperature range, please contact your Condair partner.
The Condair DA freezer units have been developed over many years and constantly been optimized
with regard to the aforementioned freezing temperatures. By completely eliminating critical thermal
bridges on the housing and by precisely matching key components such as the fans, the rotor and
the heating elements for example, high efciency and safety in system operation are optimized. The
special design allows the unit to be placed outside of the actual freezer area, where the installation of
the dryer often conicts with the storage area. By installing the dryer outside of the deep-freeze area,
valuable storage and useable space remain free. The application-optimized design of the Condair DA
Freezer desiccant dryer also eliminates the requirement for a complex and expensive installation of a
pre-heater. The Condair DA Freezer desiccant dryers are therefore the optimal solution for use in cold
stores, test rooms and applications with similar requirements, also in terms of cost-effectiveness, both
in procurement and operation.
4.3 Operation principle
The operation principle of the DA Freezer desiccant dryer is identical to that of the Condair DA 500-4000
standard devices. Please note the information in section 4.3 of the installation and operation manual for
the Condair DA 500-4000 desiccant dryer.