Totech U7002, U7003, U7100 Operation Instructions Manual

Operation Instructions U7002 and
U7003 with control device U7100

Contents

1. Safety Directions
2 . Description

3. Construction

4. Technical Dates

5. Operation

6. Adjusted Values

7. Alarm

8. Locking

9. Calibration

10. Maintenance

11. Damaging Influences to Silicagel Rotors

12. CE-Declaration

1. Safety Directions

Follow instructions in manual

Main condition for a safe usage and a free of interference operation of this air dehumidifier is the
knowledge of the basic safety indications and the safety instructions.

 This operational manual comprises the most important instructions to operate the air dehumidifier

in a safe way.

 This operation manual, in particular the safety instructions, should be met by all persons, who

operate the air dehumidifier.

 In addition the rules and instructions for the working place to prevent accidents should be met.

Obligation of the Operator

The operator is obliged to have only persons operate the air dehumidifier who :

● are familiar with the relevant instructions on safe working and accident prevention and are

instructed in the maintenance of the air dehumidifier. .

 have the required professional knowledge or have given prove of it.
 have read and understand the safety and warning instructions in this manual.
 Awareness of a safe operation has to be tested regularly among the personnel.

Obligation of personnel

All persons, who are ordered to operate the air dehumidifier, should commit themselves, before
operation:

 to observe the relative instructions regarding a safe operation and a prevention of accidents.
 to observe the safety and warning instructions of this manual.

Organizational Measures

 The required personal protection equipment should be made available by the owner.
 All present safety precautions should be tested regularly.

Informal Safety Measures

 The manual should always be kept on the place of operation of the air dehumidifier.
 In addition to the manual the universally applied regulation and also the local regulation to prevent

accidents and environmental protection should be observed.

 All safety and warning instructions for the air dehumidifier should be kept in a readable way.

Intended way of application

The air dehumidifier should only be used to dehumidify atmospheric air. Another or further use is
considered not in accordance with the original purpose. For damage resulted from this Totech Europe
Ltd will not be liable.

Air dehumidifiers should not be put up in liquids or suck up liquids (f.i. full tanks or flooded
surfaces etc.).

The operation in and/or with explosion-sensitive atmosphere is permitted for RL 94/9/EG
(Atex 95) marked apparatuses. The owner is obliged to check the ability of deployment of
the air dehumidifier in accordance with the RL 1999/92/EG (Atex 137)!

To use in accordance with its original purpose belong also:

 the observing of all instructions in the manual and
 the compliance of inspection and maintenance work.

Dangers in operating the air dehumidifier
The air dehumidifier has been constructed in accordance with the state of technology and the

approved technical safety rules. The air dehumidifier should only be used:

 for use in accordance with its original purpose
 in technically safe conditions.
 Failures, which can affect safety, should be repaired at once.

Protection facilities

 Before any switch on of the air dehumidifier all protection arrangements should be applied

adequately and be active.

 Protection facilities should only be removed:

a) after a halt and b) safeguarding against unintentional switching on.

 On supply of partial components the protection facilities are to be applied in accordance with

instructions.

Dangers by electrical energy

 Work at the electrical equipment is only to be carried out by an electronic expert.
 The electronic equipment of the air dehumidifier is to be checked regularly. Loose connections and

damaged cables should be repaired at once.

 The switch box should be closed all the time. It should only be opened by authorized personnel

with the right tools.

 If work is necessary on parts under tension, a second person should be there to switch off tension

in case of emergency.

Maintenance and Removing failures

 Required adjustment, maintenance and inspection work are to be carried out timely.
 Inform operation personnel before maintenance work.
 All equipment and connections linked up with the dehumidifier are to be safeguarded against

unintentional operation.

 With all maintenance, inspection and repair work the dehumidifier should be switched off and the

main switch should be secured against switching on.

 Put on a warning sign against switching on.
 Loosened screws are to be checked that they have been fastened again.
 After finishing maintenance work safety precautions should be checked.

Constructional changes to the dehumidifier.
 Without written authorization of Totech Europe Ltd no changes,building on or adding to especially

welding work on carrying parts of the dehumidifier should be made.

 Only original parts should be used, because otherwise no functional and safe operation is

guaranteed.
Cleaning of the dehumidifier and storage of waste.
Substances and materials used should be applied and stored as waste in an expert way, in particular

when working on oil systems and cleaning work with solvents.

Guarantee and Liability

Basically our „General Terms of Sale and Delivery “apply. These are available for the owner from sale

agreement at the latest.
Claims of guarantee and liability with personal and material damage are excluded if they are based on

one or more of the following causes.

● no original use of the dehumidifier.

 no expert mounting,commencement of operation, operation and maintenance of the dehumidifier.
 Operating with faulty safety facilities or no orderly and functional safety and protection facilities.
 No compliance with instructions in the manual concerning transport, storage, mounting,

commencement of operation, operation, and maintenance of the dehumidifier.

 high-handed constructional changes or high-handed changes of the technical construction.
 Repairs made unprofessionally.
 Cases of catastrophy, affection of foreign elements and cases of force majeur.

2. Description

Utilization

Dehumidifiers in accordance with the absorbtion principle are used to solve drying problems in the
process technique, in the climate technique, at construction sites and to dehumidify production and
storage rooms, in which products and facilities require a very low air humidity. The dry unit U-7002
with humidity control U-7100 is specifically designed for use in large dry storage cabinets and dry
rooms. The dry unit operates without interruption. The drying unit U-7003 differs from the U-7002
through an additional reheating. The heat output and temperature is controlled and monitored by the
control unit U-7100.

Operation requirements

Totech air dehumidifiers are in general deployed with beginning conditions of 20°C at 60%r.H. With
diminishing relative humidity the process air and/or increasing relative humidity of the regeneration air
the dehumidifying performance is affected negatively.

A) The air dehumidifier should only be used with surrounding temperatures

between -20°C und +40°C !

B) The temperature of the process air sucked up should at most be +40°C

and the temperature of the regeneration air should at least be -15°C !
C) The air sucked up may not contain free water (water drops) !
D) Air dehumidifiers should not be deployed in liquids or should not suck up

liquids (f.i. full tanks or tubs, flooded surfaces etc.).
E) The operation in and/or with explosion sensitive atmosphere is only

allowed for apparatuses typified by RL 94/9/EG (Atex 95). The owner is

obliged to check the deployment of the air dehumidifier according the RL

1999/92/EG (Atex 137) !
F) When putting into operation with contaminated air "Damaging Influences

on Rotors " should absolutely be observed !