REMKO LTE 120 Manuale utente

Assembly and operating instructions

Read the instructions prior to performing any task!

REMKO LTE 120

Dehumidifier

0178-2018-01 Edition 1, en_GB

Installation and operating instructions (translation of the orig-

inal)

Read these operating instructions carefully before commis-

sioning / using this device!

These instructions are an integral part of the system and must

always be kept near or on the device.

Subject to modifications; No liability accepted for errors or mis-

prints!

Table of contents

1 Safety and usage instructions............................................................................................................. 4

1.1 General safety notes....................................................................................................................... 4

1.2 Identification of notes...................................................................................................................... 4

1.3 Personnel qualifications.................................................................................................................. 4

1.4 Dangers of failure to observe the safety notes................................................................................ 4

1.5 Safety-conscious working............................................................................................................... 4

1.6 Safety instructions for the operator................................................................................................. 5

1.7 Safety notes for installation, maintenance and inspection work...................................................... 5

1.8 Unauthorised modification and changes......................................................................................... 6

1.9 Intended use................................................................................................................................... 6

1.10 Warranty........................................................................................................................................ 6

1.11 Transport and packaging............................................................................................................... 6

1.12 Environmental protection and recycling........................................................................................ 6

2 Technical data........................................................................................................................................ 7

2.1 Unit data.......................................................................................................................................... 7

3 Design and function.............................................................................................................................. 9

3.1 Air dehumidification - general note.................................................................................................. 9

3.2 Unit description............................................................................................................................. 12

4 Assembly............................................................................................................................................. 14

4.1 Setting up the unit......................................................................................................................... 14

4.2 Unit transport................................................................................................................................. 14

5 Electrical wiring................................................................................................................................... 15

5.1 General notes................................................................................................................................ 15

5.2 Electrical wiring diagram............................................................................................................... 15

6 Commissioning................................................................................................................................... 16

7Condensate removal........................................................................................................................... 21

8 Troubleshooting and customer service............................................................................................ 23

9 Shutdown............................................................................................................................................. 24

10 Care and maintenance........................................................................................................................ 25

10.1 Care and maintenance................................................................................................................ 25

10.2 Maintenance protocol.................................................................................................................. 27

11 General view of unit and spare parts................................................................................................ 28

11.1 Exploded view of the unit............................................................................................................ 28

11.2 Spare parts list............................................................................................................................ 29

12 Index..................................................................................................................................................... 31

1 Safety and

usage instructions

1.1 General safety notes

Carefully read the operating manual before com-

missioning the units for the first time. It contains

useful tips and notes such as hazard warnings to

prevent personal injury and material damage.

Failure to follow the directions in this manual not

only presents a danger to people, the environment

and the system itself, but will void any claims for

liability.

Keep this operating manual and the refrigerant

data sheet near to the units.

1.2 Identification of notes

This section provides an overview of all important

safety aspects for proper protection of people and

safe and fault-free operation.The instructions and

safety notes contained within this manual must be

observed in order to prevent accidents, personal

injury and material damage.

Notes attached directly to the units must be

observed in their entirety and be kept in a fully

legible condition.

Safety notes in this manual are indicated by sym-

bols. Safety notes are introduced with signal words

which help to highlight the magnitude of the danger

in question.

DANGER!

Contact with live parts poses an immediate

danger of death due to electric shock. Damage

to the insulation or individual components may

pose a danger of death.

DANGER!

This combination of symbol and signal word

warns of a situation in which there is immediate

danger, which if not avoided may be fatal or

cause serious injury.

WARNING!

This combination of symbol and signal word

warns of a potentially hazardous situation,

which if not avoided may be fatal or cause

serious injury.

CAUTION!

This combination of symbol and signal word

warns of a potentially hazardous situation,

which if not avoided may cause injury or mate-

rial and environmental damage.

NOTICE!

This combination of symbol and signal word

warns of a potentially hazardous situation,

which if not avoided may cause material and

environmental damage.

This symbol highlights useful tips and recom-

mendations as well as information for efficient

and fault-free operation.

1.3 Personnel qualifications

Personnel responsible for commissioning, opera-

tion, maintenance, inspection and installation must

be able to demonstrate that they hold a qualifica-

tion which proves their ability to undertake the

work.

1.4 Dangers of failure to observe

the safety notes

Failure to observe the safety notes may pose a risk

to people, the environment and the units. Failure to

observe the safety notes may void any claims for

damages.

In particular, failure to observe the safety notes

may pose the following risks:

nThe failure of important unit functions.

nThe failure of prescribed methods of mainte-

nance and repair.

nDanger to people on account of electrical and

mechanical effects.

1.5 Safety-conscious working

The safety notes contained in this manual, the

existing national regulations concerning accident

prevention as well as any internal company

working, operating and safety regulations must be

observed.

REMKO LTE

1.6 Safety instructions

for the operator

The operational safety of the units and compo-

nents is only assured providing they are used as

intended and in a fully assembled state.

This unit can be used by children above the age of

8, as well as by people with impaired physical,

sensory or mental capabilities or a lack of experi-

ence and knowledge if they are supervised or have

received instruction in the safe operation of the

unit, and if they understand the associated poten-

tial hazards. Children must never play with the

device. Cleaning and user maintenance must not

be carried out by unsupervised children.

nThe units and components may only be set up,

installed and maintained by qualified per-

sonnel.

nIf the mains power supply line of this unit is

damaged, this must be replaced by the manu-

facturer or their customer services department

or a similarly qualified person in order to avoid

any hazard.

nDo not operate units or components with

obvious defects or signs of damage.

nThe units may not be installed or operated in

explosive environments.

nThe units must not be installed or operated in

atmospheres containing oil, sulphur, chlorine or

salt.

nThe units must be installed upright and in a

stable position.

nThe units and components must not be

exposed to any mechanical load, extreme

levels of humidity or extreme temperatures.

nAll housing parts and device openings, e.g. air

inlets and outlets, must be free from foreign

objects. An unobstructed air inlet and air outlet

must be guaranteed at all times.

nThe units must not be covered during opera-

tion.

nNever stick foreign objects into the units.

nThe units must not be transported while they

are running.

nThe units must only be transported when the

condensate container is empty and the evapo-

rator is dry.

nAll electrical cables on the outside of the units

must be protected against damage (e.g. by ani-

mals etc.).

nBefore each change of location, the conden-

sate container must be emptied.

nThe units must be inspected by a service tech-

nician to ensure that they are safe to use and

fully functional at least once yearly. Visual

inspections and cleaning may be performed by

the operator when the units are disconnected

from the mains.

NOTICE!

Extensions to the connection cable must only

be conducted by authorised specialist electri-

cians, taking into consideration the unit power

consumption, cable length and local use.

NOTICE!

Work on the refrigerant system and on the elec-

trical equipment must only be conducted by a

specially-authorised specialist!

1.7 Safety notes for installation,

maintenance and

inspection work

nAppropriate hazard prevention measures must

be taken to prevent risks to people when per-

forming installation, repair, maintenance or

cleaning work on the units.

nThe setup, connection and operation of the

units and its components must be undertaken

in accordance with the usage and operating

conditions stipulated in this manual and comply

with all applicable regional regulations.

nIf the mains power supply line of this unit is

damaged, this must be replaced by the manu-

facturer or their customer services department

or a similarly qualified person in order to avoid

any hazard.

nThe units must be installed upright and in a

stable position.

nThe units must not be exposed to direct jets of

water, e.g. pressure washers etc.

nSafety devices may not be modified or

bypassed.

nThe units and components may only be set up,

installed and maintained by qualified per-

sonnel.

nDo not operate units or components with

obvious defects or signs of damage.

nThe units may not be installed or operated in

explosive environments.

nThe units must not be installed or operated in

atmospheres containing oil, sulphur, chlorine or

salt.

nThe units and components must not be

exposed to any mechanical load, extreme

levels of humidity or extreme temperatures.

nAll housing parts and device openings, e.g. air

inlets and outlets, must be free from foreign

objects. An unobstructed air inlet and air outlet

must be guaranteed at all times.

nAll electrical cables on the outside of the units

must be protected against damage (e.g. by ani-

mals etc.).

nThe units must be inspected by a service tech-

nician to ensure that they are safe to use and

fully functional at least once yearly. Visual

inspections and cleaning may be performed by

the operator when the units are disconnected

from the mains.

1.8 Unauthorised modification

and changes

Modifications or changes to units and components

are not permitted and may cause malfunctions.

Safety devices may not be modified or bypassed.

Original replacement parts and accessories

authorised by the manufactured ensure safety. The

use of other parts may invalidate liability for

resulting consequences.

1.9 Intended use

The units are designed exclusively for drying and

dehumidification purposes in industrial or commer-

cial situations on the basis of their structural design

and equipment. The units must only be operated

by appropriately instructed personnel.

Any different or additional use is a non-intended

use. The manufacturer/supplier assumes no lia-

bility for damages arising from non-intended use.

The user bears the sole risk in such cases.

Intended use also includes working in accordance

with the operating and installation instructions and

complying with the maintenance requirements.

The threshold values specified in the technical

data must not be exceeded.

1.10 Warranty

For warranty claims to be considered, it is essential

that the ordering party or its representative com-

plete and return the "certificate of warranty" to

REMKO GmbH & Co. KG at the time when the

units are purchased and commissioned.

The warranty conditions are detailed in the "Gen-

eral business and delivery conditions". Further-

more, only the parties to a contract can conclude

special agreements beyond these conditions. In

this case, contact your contractual partner in the

first instance.

1.11 Transport and packaging

The devices are supplied in a sturdy shipping con-

tainer. Please check the equipment immediately

upon delivery and note any damage or missing

parts on the delivery and inform the shipper and

your contractual partner. For later complaints can

not be guaranteed.

WARNING!

Plastic films and bags etc. are dangerous

toys for children!

Why:

- Leave packaging material are not around.

- Packaging material may not be accessible to

children!

1.12 Environmental protection

and recycling

Disposal of packaging

All products are packed for transport in environ-

mentally friendly materials. Make a valuable contri-

bution to reducing waste and sustaining raw mate-

rials. Only dispose of packaging at approved

collection points.

Disposal of equipment and components

Only recyclable materials are used in the manufac-

ture of the devices and components. Help protect

the environment by ensuring that the devices or

components (for example batteries) are not dis-

posed in household waste, but only in accordance

with local regulations and in an environmentally

safe manner, e.g. using certified firms and recy-

cling specialists or at collection points.

REMKO LTE

2 Technical data

2.1 Unit data

Unit type LTE 120

Operating range, temperature °C 3 to 32

Operating range, humidity % RH 40 to 100

Dehumidification capacity max. l/day 116

At 30 °C/80 % RH l/day (DER) 1) 102.4

At 20 °C/70 % RH l/day (DER) 1) 62.5

At 10 °C/60 % RH l/day (DER) 1) 18.2

Max. airflow volume m3/h 960

Compressor / condenser - design Rotary piston

Refrigerant 2) R410A

Refrigerant quantity g 1270

Power supply V/Hz 230/1~/50

Max. rated current consumption A 6.8

Max. power consumption kW 1.38

At 20 °C / 70 % RH kW 1.0

Customer-provided electrical protection A 16

Type of connection Y

Enclosure class IP20

Sound pressure level LpA 1 m 3) dB(A) 53

Sound power level LwA 1 m dB(A) 61

Electronic start safeguard Series

Operating hours counter Series

Power meters Series

Hot gas defrosting Series

Hygrostat Series

Room temperature sensor Series

Condensate pump, built-in Option

Hose length (condensate pump) m 5 (10 4))

Delivery height (condensate pump) m 5

Unit type LTE 120

Dimensions

Depth mm 750

Width mm 705

Height mm 964

Height incl. transportation bracket mm 967

Weight kg 70.0

EDP no. 618900

EDP no. Unit with condensate pump 618905

1) (DER) = Dehumidification output figure in accordance with DIN EN 810

2) Contains greenhouse gas according to Kyoto protocol

3) Noise level measurement DIN 3744 - KL 2

4) Max. permissible hose length

We reserve the right to modify the dimensions and design as part of the ongoing technical development

process.

REMKO LTE

3 Design and function

3.1 Air dehumidification -

general note

The correlations occurring when air is dehumidified

are based on physical laws. These are depicted

here in graphical form in order to provide you with

a brief overview of the principles of air dehumidifi-

cation

The use of REMKO air dehumidifiers

nEven if windows and doors are well insulated,

water and moisture are still capable of pene-

trating thick concrete walls.

nThe water required for setting in the production

of concrete, mortar and plaster etc. may only

be diffused after 1-2 months.

nEven moisture trapped in the masonry after

high-water or a flood is released very slowly.

nThe same is also true of moisture contained in

stored materials for example.

The moisture (water vapour) released from parts of

a building or materials is absorbed by the sur-

rounding air. As a result, the moisture content

increases, which ultimately gives rise to corrosion,

mould, rot, peeling of paint and other unwanted

damage. By way of example, the diagram below

shows the corrosion rate of metal in different levels

of humidity.

Fig. 1: Corrosion rate in relation to relative humidity

A: Corrosion rate

B: Relative humidity [%]

It is evident that the corrosion rate below 50% rela-

tive humidity (RH) is low, and below 40% is negli-

gible.

The corrosion rate increases significantly above

60% RH. This threshold for damage as the result

of humidity also applies to other materials, such as

powdery substances, packaging, wood and elec-

tronic units.

Buildings may be dried in a variety of ways:

1. By heating and air exchange: The air in the

room is heated in order for moisture to be

removed and then this air is fed outside. All

of the energy that is involved is lost together

with the moist air that is released.

2. By air dehumidification: The moist air that is

present within an enclosed space is continu-

ously dehumidified in accordance with the

condensation principle.

With regard to energy consumption, air dehumidifi-

cation has one distinct advantage:

Energy expenditure is limited exclusively to the air

volumes present. The mechanical heat that is

released by the dehumidification process is fed

back into the room.

NOTICE!

Under normal use, the air dehumidifier uses

approximately 25% of the energy that is

required for the "heating and ventilating" prin-

ciple.

Relative air humidity

Our ambient air is a gaseous mixture which always

contains a certain volume of water in the form of

water vapour. This volume of water is specified in g

per kg of dry air (absolute moisture content).

1m3 of air weighs approx. 1.2 kg at 20 °C

Depending on the temperature, each kg of air is

only capable of absorbing a certain volume of

water vapour. Once this capacity has been

reached, the air is referred to as "saturated" and

has a relative humidity (RH) of 100%.

Relative humidity is understood to mean the ratio

between the current quantity of water vapour in the

air and the maximum possible quantity of water

vapour at the same temperature. The ability of the

air to absorb water vapour increases as the tem-

perature rises. I.e. the maximum possible (abso-

lute) water content becomes greater as the tem-

perature rises.

Temp. Water vapour content in g/m3

at humidity of

°C 40% 60%

-5 1.3 1.9

+10 3.8 5.6

+15 5.1 7.7

+20 6.9 10.4

+25 9.2 13.8

+30 12.9 18.2

°C 80% 100%

-5 2.6 3.3

+10 7.5 9.4

+15 10.2 12.8

+20 13.8 17.3

+25 18.4 23.0

+30 24.3 30.3

Drying materials

Building materials and structures are capable of

absorbing considerable volumes of water, such as

brick 90-190 l/m³, heavy concrete 140-190 l/m³ and

limestone 180-270 l/m³. The drying of moist mate-

rials such as masonry is effected as follows:

The moisture moves from the inside of the material

to its surface.

Fig. 2: Drying damp masonry

nEvaporation occurs on the surface = Transfer

of water vapour to the ambient air

nThe air containing water vapour is constantly

circulated through the REMKO air dehumidifier.

The air is dehumidified and, slightly heated,

leaves the unit in order to re-absorb water

vapour

nIn this way, the moisture contained in the mate-

rial is reduced gradually

The material is dried!

The accumulated condensate is collected in the

unit and drained off from there.

Fig. 3: Extracting and collecting condensate

REMKO LTE

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