Dantherm DFC 350 User manual

Focus. Trust. Initiative.

2005 layout

DFC 350 and 450

Service manual

No. 840121 • rev. 1.3 • 09.01.2012

Der tages forbehold for trykfejl og ændringer

Dantherm can accept no responsibility for possible errors and changes

Irrtümer und Änderungen vorbehalten

Dantherm n’assume aucune responsabilité pour erreurs et modifications éventuelles

840121 •Version 1.3 • 09.01.2012

Overview

Introduction

This is the service manual for the Displacement Free Cooling unit DFC 350 & 450.

The DCF 350-450 unit is usually shipped including a control unit. This control unit, TKS

3000A EC, ACUE 3000 or FAC 48, is covered in a separate manual.

Table of content

The Service Manual covers the following main topics:

Topic

See page

General information

General principle for DFC units

Parts and function

How to mount the DFC 350 and DFC 450

Technical data DFC 350

Technical data DFC 450

Technical data DFC 350 and 450

Capacity and data diagrams

Dimensions

Installation alternatives

Wiring diagram –ACUE 3000

Wiring diagram –TKS 3000A EC

Wiring diagram –FAC 48

Preventive maintenance

Spare parts list

General information

Introduction

This section provides general information about the unit and this Service Manual.

Target group

The target group for this Service Manual is the technicians who install, maintain and

repair the unit.

Warning

It is the responsibility of the operator to read and understand this service manual

and other information provided and to use the correct operating procedures.

The product should only be operated by qualified (trained) personnel. Failure to

do so can result in personal injury or equipment damage.

Read the entire manual before the initial start-up of the product. It is important to know

the correct operating procedures for the product and all safety precautions to prevent

the possibility of property damage and/or personal injury.

Products

The Service Manual cover the following products:

Name

Type No.

DFC 350

299763

DFC 450

299745

Copying of this service manual, or part of it, is not allowed without written permission

from Dantherm Air Handling A/S.

Reservations

The service manual is subject to changes without notice.

CE-Declaration of

Conformity

Dantherm Air Handling A/S, Marienlystvej 65, DK7800 Skive hereby declare that the

unit are in conformity with the following directives:

2006/95/EG Low Voltage Directive including 93/68/EEC where required

86/336 EEC EMC Directive including 92/31/EEC and 93/68/EEC

98/37 EG Machine Directive

The product is manufactured with components which follow the application standards

for Low Voltage Directive and in case of norms for EMC in EU countries.

Recycling

The unit is designed to last for many years. When the time comes for the unit to be re-

cycled, the unit should be recycled according to national rules and procedures to pro-

tect the environment.

840121 •Version 1.3 • 09.01.2012

OUTDOOR

TEMP

SENSOR

ROOM SENSOR

DAMPER ACTIVE

COOLING UNIT

SUPPLY

48V DC / 230V AC

DFC

GT1

HEATER

ST2

RADIOBASE SITE

GT2

DFC FLOW

CONTROLLER

LOW DELTA-T UP TO 1,6m

General principle for DFC units

General

A DFC (Displacement Free Cooling) unit supplies the cold outdoor air through a diffu-

sor filter with very low velocity. This will make a dune of cold air at the floor and up to a

height of 1,6 meter in the shelter. The temperature at the ceiling will be relatively high.

The idea is to remove more heat with lower air volume in order to save power con-

sumption of the fan.

This is only possible if a large temperature difference between supply air and air out of

the shelter can be achieved.

Efficiency

The efficiency of the DFC unit depends very much on the circulation of the internal air

circulation in the telecom equipment and in the shelter. It is therefore very necessary to

do a thorough test of the airflows in the shelter before initiating a bigger roll out.

Illustration

The illustration below shows the DFC and some external parts unit mounted in a con-

tainer:

Parts

This table describes the different part (from left to right) in the illustration above:

Part

Description

Outdoor Temp sensor

Measures the outdoor temperature (NTC resistor)

DFC unit

The unit including bag filter and air inlet hood with com-

pact filter

Supply to the unit from power source

Controller

Climate unit controller TKS3000EC, ACUE3000 or oth-

ers

Heater

External electrical heater

Supply 48V DC/230 V AC

Supply to the controller and the DFC

Room sensor GT1

Measures the indoor temperature (NTC resistor)

Active cooling unit

Existing airconditioner (often split unit)

Damper

Electrical damper allowing warm air to leave the shelter

Continued overleaf

Parts and function

Introduction

The DFC units have a simple but very robust design. The parts are shown below.

Illustration

This drawing shows the parts of the DFC unit. It includes a fan and a filter guard

Parts

This table describes the parts in the illustration:

Part

Description

Filter guard

Measures the pressure on both sides of the filter. When the pressure

drop exceeds 150 Pascal (factory setting) the build in switch which is

connected to the controller will open and cause an alarm.

Fan

The fan is a centrifugal fan either 48 V DC or 230 V AC. See tech-

nical data for further information.

Bag filter

The Bag filter is either filter class F5 or F6, see technical data for fur-

ther information.

Fan

Filter guard

Bag filter

840121 •Version 1.3 • 09.01.2012

How to Mount the DFC 350 or DFC 450

Procedure

Follow these steps to mount the DFC 350 or DFC 450:

Step

Action

Make a Ø245mm hole in the shelter wall about 1900 mm above the floor.

Demount the front cover of the unit by removing the 3 fluted grip knobs.

Hold the unit in position and fasten it to the wall with minimum 4 screws.

Slide the filter into place and remount the front cover.

DFC 350

DFC 450

How to Mount the DFC 350 or DFC 450, continued

Air inlet hood

Put sealing rubber on the flanges of the hood, hold it in position above the inlet hole

and fasten it to the wall.

Exhaust damper

Cut out an exhaust opening W: 1000xH: 210mm above the door (when possible).

Hold the motorized damper in position and fasten it to the wall.

Continued overleaf

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