Delta 36-205 User Manual download pdf (Page 2)

Page 2

36 & 54kW 3-Phase panel mount, heater controller

RE-PR3-E-36/54

Data Sheet Ref: 90501161

Issue: 5.2

International Tel: +44 1732 861225

UK Sales Tel: 0845 345 7253

International Fax: +44 1732 861226

UK Sales Fax: 0845 345 7353

www.sontay.com

Whilst every effort has been made to ensure the accuracy of this specification, Sontay cannot accept responsibility for damage, injury, loss or

expense resulting from errors or omissions. In the interest of technical improvement, this specification may be altered without notice.

90800066 Issue 1

SAFETY REQUIREMENTS & ADVICE SHEET

Introduction

The objective of this leaflet is to provide information to en-

sure that the safety of the person(s) installing or maintaining

the equipment is not compromised and its location and

method of installation does not endanger others, either dur-

ing or after installation.

Customers should be aware of the Health and Safety at

Work Act 1974 (HSW 1974) and the EC “Provision and Use

of Work Equipment Regulations 1992” (PUWER). Both are

available from the Health and Safety Executive (HSE) publi-

cations, within the UK.

Installation

CE Directives

These are European regulations which apply to our industry.

They affect the equipment emissions and immunity to Radio

Frequency Interference (RFI) and various elements of safety

for electrical equipment.

The European Community ‘CE’ Directives that mainly con-

cern Sontay Ltd are, the Low Voltage Directive (LVD) and

the Electromagnetic Compliance Directive (EMC).

A Declaration of Conformity may be supplied with the prod-

uct or supplied on request.

Torque Settings

Good working practises must be adhered to ensuring appro-

priate electrical and mechanical installation. This would in-

clude the mechanical fixing of potentiometer bushes and

electrical set screw and/or pillar connections. These Electri-

cal Connections and Mechanical Fastenings must not be

over tightened. We would recommend a typical torque set-

ting of 1 to 5Nm. For specific product information, see ap-

propriate product data sheet, where applicable.

Cooling Requirements

The use of an additional heatsink (this could be a conductive

panel) suitably attached or mounted with the unit, will help to

dissipate heat away from the device(s). An alternative or

additional method would be forced air-cooling (using a fan),

to assist the natural convection of airflow over an existing

heatsink within the unit. The product fins should be mounted

in line with the forced and/or natural airflow.

The equipment’s environment and its initial ambient tem-

perature also need to be considered, as this could have an

adverse effect on the overall operating conditions.

Fusing

We recommend that semiconductor, fast acting to BS88 IEC

269, type fuses or circuit breakers (Semiconductor - MCB)

should be used for unit and/or device protection. The appro-

priate maximum load current should be known to select the

required SCR fuse or MCB, but must not exceed the equip-

ment rating. The I² t (A² s) rating of the selected fuse must

be less than that of the equipment so as to protect the equip-

ment’s discrete device. Further appropriate fusing may be

required for protection of the unit supply using standard fuse

links and holders. Failure to address these requirements

and the use of incorrectly selected fuses may cause the

equipment to fail.

Earthing

The protective conductor terminal of the equipment must be

utilised at all times and bonded to a ‘good’ Earth (ground).

The earth bonding (strapping) leads of any combined equip-

ment should be as short as possible and be substantial, i.e.

at least rated higher than the equipment’s load. For further

information, refer to BS7671. Following these simple guide-

lines will ensure optimum use of any appropriate filter cir-

cuits which may be required.

Insulation (over-voltage category) and Protection from

electric shock Classification of Equipment

All equipment, unless otherwise stated, is rated to CLASS II

Insulation (Over-voltage category) and CLASS I (Protection

category).

Maintenance

Before any servicing is carried out, reference should be

made to appropriate installation instructions, drawings and

labelling which may come with the equipment. Personnel

should switch off the unit supply before accessing or remov-

ing any safety cover and be aware of hazardous live parts.

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90800066 Issue 1 1

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