Benson Ouh 2 40 User manual

BENS

Benson equipment must be installed and maintained in accordance with the current OFTEC

Regulations for oil ﬁred products. Due account should also be taken of any obligations arising from

the Health and Safety at Works Act 1974 or relevant codes of practice. In addition the installation must

be carried out in accordance with the current IEE wiring regulations (BS 7671), BS 6896:

Industrial & Commercial) and any other relevant British Standards and Codes of Practice by

a qualiﬁed installer. All external wiring MUST comply with the current IEE wiring regulations.

BENSON OUH²

SUSPENDED OIL UNIT HEATER

INSTALLATION AND OPERATING MANUAL

Part No. D301012

INDEX Section

Introduction and Document Index

Installation Requirements ................................................................................. 1

Installation Instructions ................................................................................. 2

Commissioning Instructions ................................................................................. 3

Servicing Instructions ............................................................................................... 4

Spare Parts ............................................................................................... 5

Fault Finding Guide ............................................................................................... 6

Replacing Parts ............................................................................................... 7

User and Operating Instructions .................................................................... 8

WARNINGS

Introduction.

Welcome to the Suspended Oil red Unit Heater Range.

Local regulations may vary in the country of use and it is

the installers responsibility to ensure that such regulations are

satised

All installation, assembly, commissioning and service

procedures must be carried out by suitable qualied

competent persons to the statutory regulations in the

country of use.

When installing, commissioning and servicing is undertaken

on these heaters due care and attention is required to

ensure that working at height regulations are adhered to at the

mounting heights specied.

All Dimensions shown are in mm unless

PLEASE READ this document prior to installation and

use. The safety of this heater is guaranteed only by the

correct usage in accordance with these instructions, therefore

it is recommended that they are retained for future reference.

The manufacturer reserves the right to alter specications without

prior notice.

Any reference made to Laws, Standards, Directives, Codes of Practice or other recommendations governing

the application and installation of heating appliances and which may be referred to in Brochures,

Specications, Quotations, and Installation, Operation and Maintenance manuals is done so for information

and guidance purposes only and should only be considered valid at the time of the publication.

The Manufacturer cannot be held responsible from any matters arising from the revision to or introduction

of new Laws, Standards, Directives, Codes of Practice or other recommendations.

Bio fuel statement.

All our oil red heater products are congured for use on both Class D light distillate fuel oil.

As a result of recent changes made to European legislation regarding the specication of class D heating oil

to allow for the inclusion of 7% FAME (Fatty Acid Methyl Ester) i.e. bio fuel and eective from early 2011, all

oil red air heater products and installations maybe aected.

From April 2011 all our Suspended Oil red Unit Heaters will be tted with Riello burners which are bio fuel

compatible for blends up to 10%.

Please note that the use of bio fuels may give rise to a number of installation issues, to both new and

existing plant which could aect the warranty of the burner. We recommend that you familiarise yourself

with current information from both the burner manufacturer Riello and OFTEC.

IMPORTANT NOTICE TO INSTALLERS

Installers should satisfy themselves that the oil pipework installation is carried out in accordance

with all current legislation, Codes of Practice and recommendations .

Document Index.

1 Installation requirements.

1.1 Compliance notices.

1.2 Certicates of conformity.

1.3 General product information.

1.4 General requirements.

1.5 Delivery and pre-installation checks.

1.6 Warranty.

1.7 Health and Safety.

1.8 Location / Positioning.

1.9 Fuel supply.

1.9.1 Fuel.

1.9.2 Storage tanks.

1.9.3 Single pipe system (gravity fed).

1.9.4 Two pipe system.

1.9.5 Pressurised ring main system.

1.9.6 Pipework and ttings.

1.10 Electrical supply - general.

1.11 Air supply

1.11.1 Heaters installed within the heated space.

1.11.1.1 Natural ventilation openings to the

heated space

1.11.1.2 Mecanical ventilation openings to the

heated space

1.11.2. Heaters Installed within a plant room or

enclosure.

1.11.2.1 Natural ventilation openings to plant

rooms

1.11.2.2 Natural ventilation openings to

enclosures

1.11.2.3 Mech ventilation to a plant room or

enclosure.

1.12 Air distribution system.

1.13 Flue system.

1.14 Dimensions.

1.15 Technical details.

1.15.1 Reference information

2 Installation Instructions

2.1 Packaging/siting

2.2 Heater mounting

2.3 Minimum clearances

2.4 Warm air circulation

2.5 Flue installation

2.6 Oil installation/connection

2.7 Electrical installation/connection

2.8 Heater control installation

Wiring diagrams

3 Commissioning instructions

3.1 Commissioning - pretest

3.2 Commissioning - ignition

3.3 Commissioning - air delivery system.

3.4 Commissioning - hand over

4 Servicing instructions

4.1 Planned servicing.

4.2 Servicing procedure - Major component parts

4.2.1 Flue

4.2.2 Axial fan

4.2.3 Heat exchanger

4.2.4 Electrical supply

4.2.5 Oil supply

4.2.6 Burner

4.2.7 Air delivery system

4.2.8 Report

4.3 Service re-commissioning

5 Spare Parts

6 Fault Finding Guide

7 Replacing Parts

7.1 Burner

7.2 Controller

7.3 Electrode assembly

7.4 Nozzle

7.5 Photocell

7.6 Oil pump

7.7 Contactor

7.8 MCB

7.9 Fan/Limit stat assembly

7.10 Axial fan

8 User and Operating Instructions

8.1 Commissioning and hand over

8.2 Servicing

8.3 Start up procedure

8.4 Stop procedure

8.5 Shut down procedure

8.6 Ventilation only

8.7 Lockout situations

1. Installation Requirements.

1.1 Compliance notices

The Suspended Oil red Unit Heater range detailed

herewith are manufactured within a strictly controlled

quality environment within the parameters of ISO 9001.

These instructions are only valid if the following country code

is on the appliance GB. IE. If this code is not present on the

appliance, it is necessary to refer to the technical instructions

which will provide the necessary information concerning the

modication of then appliance to the conditions of use for the

country.

The Suspended Oil red Unit Heater range have been tested

and assessed for compliance with the following European

Directives.

Machinery Directive: (2006/42/EC)

Low Voltage Directive: (2006/95/EC)

Electromagnetic Compatibility Directive: (2004/108/EC)

Product Liability Directive: (85/374/EEC)

The manufacturer has taken reasonable and practical steps to

ensure that all Suspended Oil red Unit Heaters are safe and

without risk when properly used. These heaters should

therefore only be used in the manner and purpose for which

they were intended, and in accordance with the

recommendations detailed herewith.

The Suspended Oil red Unit Heater range has been designed,

manufactured, assembled, inspected, and tested, with safety

and quality in mind, there are certain basic precautions which

the installer and user should be aware of, and they are

strongly advised to read the appropriate sections of the

information pack accompanying the heater, prior to

installation or use.

The manufacturer supports all new products being supplied

to their customers with a comprehensive information pack;

this clearly denes mandatory instructions for the safe

installation, use, and maintenance, of the appliance(s).

Where proprietary items are incorporated into any Suspended

Oil red Unit Heater, detailed information and instructions are

also provided as part of the information pack.

It is the responsibility of the installer, owner, user, or hirer of a

Suspended Oil red Unit Heater to ensure that they are

familiar with the appropriate information/manuals supplied by

the manufacturer and the safety instructions. In addition,

operators must be suitably trained in the use of the appliance

so as to ensure its continued safe and ecient use.

The manufacturer has a commitment to continuous

improvement and therefore reserve the right to amend or

change the specication of the Suspended Oil red Unit

Heater subject to compliance with the appropriate European,

national and local regulations

Contained within the text of the manual, the words ‘Caution’

and ‘Warning’ are used to highlight certain points.

Caution is used when failure to follow or

implement the instruction(s) can lead to

premature failure or damage to the heater or its

component parts.

Warning is used when failure to heed or

implement the instruction(s) can lead to not only

component damage, but also to a hazardous

situation being created where there is a risk of personal

injury.

The Suspended Oil red Unit Heater range conform to the

following harmonised standards:

BS EN 292 -1

Safety of Machinery - Basic Concepts, General Principles for

Design Basic terminology, methodology BS EN 292-2

BS EN 292 -2

Safety of Machinery - Basic Concepts, General Principles for

Design Technical Principles and Specications

BS EN 60204-1

Safety of Machinery - Electrical Equipment for Machines

Specication for General Requirements

BS EN 60335-1

Safety of Household and Similar Electrical Appliances General

Requirements

BS EN 55014

Limits and methods of measurement of radio disturbance

characteristics of electrical motor-operated and thermal

appliances for household and similar purposes, electrical tools

and similar electric apparatus

BS EN 50165

Electrical Equipment of non-electric heating appliances for

household and similar purposes, safety requirements

1.2 Certicates of conformity

Certicates of conformity are available from the manufacturer,

address details are shown on the back page.

1.3 General product information

The Suspended Oil red Unit Heater range have an output

range from approximately 40.0 kW to 103kW. Each heater

must be connected to its own individual open ue.

Each heater is tted with a forced draught burner which has

been test red and pre-set prior to despatch. The safety

functions of the burner are by way of a fully sequential control

box tted to the burner.

Note

Neither asbestos nor soft soldered joints are used in the

construction or manufacture of the Suspended Oil red Unit

Heater range. The materials selected for use can withstand the

mechanical, chemical, and thermal stresses which they will

be subject to during foreseen normal use when installed in

accordance with the manufacturers recommendations.

1.4 General requirements

Caution

Ensure the fuel supply is in accordance with the manufacture’s

recommendations and is as stated on the appliance data plate.

Installation, commissioning, and servicing must only

be carried out by appropriately qualied and competent

persons.

Warning

Unauthorised modications to the appliance, or departure

from the manufacturers guidance on intended use, or,

installation contrary to the manufacturers recommendations

may constitute a hazard.

Note

To ignore the warning and caution notices, and to ignore the

advice from the manufacturer on installation, commissioning,

servicing, or use, will jeopardise any applicable warranty,

moreover, such a situation could also compromise the safe

and ecient running of the appliance itself, and thereby

constitute a hazard.

The installation of the appliance must meet all the relevant

European, national, and local criteria.

Prior to installation the following points should be considered;

• The position of the heater for the optimum ecient

distribution and circulation of warm air.

• The position of the heater relative to the route of the

ue

• The position of the heater relative to the supply of fuel

• The position of the heater relative to the electrical

services, and if appropriate, any additional controls.

• The position of the heater relative to the supply of

fresh air

• The height if applicable at which the heater is to

be mounted and potential stratication /circulation

problems.

• The position of the heater relative to service and

maintenance requirements

Caution

The heater must not be installed within an area where the

conditions are unsuitable, e.g. where the atmosphere is highly

corrosive, has a high degree of salinity, or where high wind

velocities may aect burner operation. Suitable protection

should be provided for the appliance when it is located in a

position where it may be susceptible to external mechanical

damage from; for example, fork lift trucks, overhead cranes

etc.

1.5 Delivery and pre-installation checks.

The heater is supplied wrapped in heavy duty protective

polythene. On receipt of the heater, the following checks

should be carried out;

• The model is as per order.

• That it is undamaged.

• That it is suitable for the fuel supply.

• That it is suitable for the electrical supply

If any of these points are not satised then contact should be

made with the suppliers sales oce as soon as possible by

telephoning the number shown on the rear page. In the case

of claims for damage, this must be signed for as damaged

and reported in writing within 24 hours of delivery, in order to

comply with insurance criteria.

1.6 Warranty

The heater is supplied with a 1 year parts and labour warranty

and a further year on all parts excluding consumable’s.

In addition to this there is a 10 year time related warranty on

the combustion chamber.

The warranty commences from the date of dispatch from the

manufacturer, and is subject to the terms detailed within the

Manufactures ‘conditions of business’.

Note (i)

The warranty may be invalidated if -

• The installation is not in accordance with the general

requirements of this manual.

• The ue arrangement and air supply for the heater are

not in accordance with the manufacturers

recommendations, codes of practice, or similar standards.

• Air ow through the heater is not in accordance with

the manufacturers technical specications.

• Internal wiring on the heater has been tampered with

or unauthorised service or repairs undertaken.

• The main electrical supply input to the heater has

been interrupted during the heating mode.

• The heater has been subject to and aected by the

ingress of water in any form.

• The heater is not operated at the rating(s) laid down in

the manufacturers technical specications.

• The heater has not been operated or used within the

normal scope of its intended application.

• The manufacturer’s recommended minimum service

requirements have not been complied with

Note (ii)

All warranty claims must contain the following info to enable

processing to take place

• Heater model

• Heater serial number

• Order reference/date of order, together with full

installation details (name and address)

• Details or symptoms of fault

• Installers name and address.

Faulty parts must be returned to the supplier, the address of

which is provided at the rear of this manual.

Any such parts will undergo inspection to verify the claim.

Replacement parts supplied prior to this may be charged, and

a credit supplied upon subsequent validation of the warranty

claim.

Consumable items are specically not included within the

scope of the warranty.

Note (iii)

Notication is required immediately a fault is suspected.

The manufacturer will not accept responsibility for any

additional damage that has been caused, expense incurred, or

consequential loss resulting from any failure of the heater(s).

1.7 Health and Safety

The Suspended Oil red Unit Heater range must be

installed in accordance with the current OFTEC regulations for

oil red products Due account should also be taken of any

obligations arising from the Health and Safety at Works Act

1974 or relevant codes of practice. In addition the installation

must be carried out in accordance with the current IEE wiring

regulations (BS 7671), BS 6896: (Industrial & Commercial) and

any other relevant British Standards and Codes of Practice by

a qualied installer. Isolate all electrical supplies to the heater

& controller before proceeding.

For your own safety we recommend the use of safety boots

and leather faced gloves when handling sharp or heavy items.

The use of protective eye wear is also recommended.

Caution

Before using this appliance:

• Check that the voltage indicated on the type plate

corresponds to the mains supply voltage.

• Ensure that the heater has been securely fastened in

its nal mountain position.

UNDER NO CIRCUMSTANCES should any item be placed

on or above any part of the heater, whether the heater is

being used or not.

WARNING: This appliance must be earthed.

1.8 Location / Positioning

Warning

All of the basic criteria must be satised prior to commencing

installation and commissioning, additionally, the Suspended

Oil red Unit Heater must be positioned and installed so as to

comply with all the relevant standards and guide lines (see

section 1.1), as well as meeting national and local re

regulations and insurance criteria, especially if it is proposed

that the heater is to be installed within a special risk area (e.g.

proximity to where petrol engined vehicles are stored or

parked, where cellulose spraying takes place, where

woodworking machinery is operated, etc,).

Indirect heaters must not be located in hazardous areas,

however, it is permissible for the heater to supply air to such

areas.

The heater must not be installed within an environment

where there is a high concentration of chlorides, uorides,

salts, or other aggressive or volatile chemicals/compounds.

Nor should the heater be positioned where the burner could

be adversely aected by high winds or draughts.

The location chosen for the heater must allow for the tting of

an eective ue system.

The location must also allow for adequate clearance for the air

supply, return air circulation, oil supply and electrical supply,

whilst also providing good and safe working access.

Suspended free blowing Unit Heaters are at their most

eective when located as close to the working area as

possible. However care should be exercised to avoid directing

the discharged air directly onto the occupants of the area to

be heated.

On exposed walls heaters should be positioned so as to

discharge towards, or along the length of the exposed wall. In

areas where it is proposed that more than one heater is to be

installed, a general scheme of circulation should be drawn up

and maintained, thereby oering the best heat distribution.

Air pressure within the area heated and the outside air

pressure must remain the same, factors inuencing this would

be the presence of extraction systems, ventilation systems,

and various types of process plant. OUHA 60-100 models can

be installed to allow the fans to work in opposite directions.

This enables the heater to be installed centrally in the area to

be heated and allows warm air to be discharged to both the

front and rear of the heater.

The heater must be installed on a at and level surface made

from non-combustible material, which is suciently robust

to withstand the weight of the heater and any ancillary

equipment. Any combustible material adjacent to the heater

or ue system must be so placed or shielded so that its surface

temperature does not exceed 65°C.

In areas where it is proposed that more than one heater is to

be installed, a general scheme of circulation should be drawn

up and maintained, thereby oering the best heat distribution

All Suspended Oil red Unit Heaters are tted with a pressure

relief facility, this is incorporated into the design of the ue gas

exit duct.

Care should therefore be taken in siting service connections

and controls well away from the pressure relief vent.

Warning

Under no circumstances must the pressure relief be

restricted, blocked, or have the free exit of exhaust gas

impaired or re-directed.

1.9 Fuel supply - general

The Suspended Oil red Unit Heater range are all

manufactured and pre-set for use with either 28 second or

35 second gas oil delivered to the burner via a suitable piped

system from the oil storage tank.

Galvanised or plastic pipe work and ttings must

not be used. (see BS 5410 Part 1 1997)

The constraints of the application will, to a large extent,

determine whether it is preferable to use a single pipe gravity

feed system, or whether the two pipe pumped system is more

appropriate.

Where more than one appliance is to share a common supply

it will be necessary to use a pressurised ring main system.

All pipe work must be constructed and installed so that it does

not permit the ingress of air.

The construction, size, and position of the oil storage tank

must take account of the current regulations, as well as suiting

the requirements of the installation.

Please refer to pages 9 and 10 for additional information.

Caution

On pumped systems always check that the pump is correctly

set up prior to running, and always ensure that valves are

open allowing a free ow of oil through the system.

1.9.1 Fuel

In order to promote trouble free operating it is necessary that

the oil within the storage tank and oil line does not fall below

the cold lter plugging point (cfpp), in this country and with

class D fuel (also referred to as gas oil). The critical

temperature is -4°C for this summer grade.

The cfpp critical temperature for the winter grade is -12°C.

If summer grade fuel is stored for winter use in areas prone

to severe frosts and low temperatures it will be necessary to

insulate or even heat the supply tank and pipe work.

Note

The fuel supplier should be contacted prior to installation so

that any requirements concerning delivery, transport, storage

and use can be addressed before work commences.

Warning

The inlet pump pressure must not exceed a maximum of 0.4

bar, this is because beyond this point gas is liberated from the

oil.

1.9.2 Storage tank

An externally painted steel storage tank to BS 799 part 5 1987

or a medium density polyethylene oil tank OFTEC certied

to OFS T-100 may be used. Local, national, European and re

regulations must also be complied with and must include:

• A fuel level gauge (not made from glass) a vent pipe

with a diameter greater than that of the ller and

featuring a weatherproof termination.

• A sludge valve.

• An outlet valve situated at the opposite end of the

tank to the sludge valve.

• A ller pipe connection situated at the opposite end

to the outlet valve.

The size of the storage tank must take account of the

estimated consumption and any quantity price breaks oered

by the oil supplier.

It is preferable to install the tank outside, however, if this

is not practicable and the tank has to be installed indoors

advice must be sought about its siting, especially so far as re

regulations are concerned.

If a separate re resistant chamber cannot be provided for

indoor installations, a catchment pit with a capacity 10%

greater than that of the storage tank must be provided

Storage tanks can if necessary be sited on a roof, but this is

subject to special regulations as well as local authority

approval and compliance with re regulations, reference to

BS 5410 part 2 1978 & part 1 1997 is strongly suggested.

It is advisable to leave the tank unpainted on the inside, but

to paint the outside with a proprietary grade of anti-corrosive

paint.

Warning

A galvanised or open topped tank is strictly not allowed.

Warning

All oil storage tanks require a bund

The Control of Pollution Regulation (Oil Storage) 2001 should

be consulted prior to installation.

1.9.3 Single pipe system (gravity feed)

For installations where the oil tank is 200mm or more above

the level of the fuel pump the principle of gravity feed may be

used.

The draw o point for the supply to the burner must not be

positioned any lower than 100mm above the bottom of the

tank.

Where a return valve is tted this must be tamper proof to

prevent inadvertent operation.

Caution

If the valve is closed when the pump is running the oil

pressure can be increased suciently so as to cause damage

to the seals within the pump.

The return oil should preferably be discharged through an

elbow onto a tank plate situated within the tank, this should

be positioned so as not to introduce air or air bubbles into the

draw o pipe.

1.9.4 Two pipe system

This is used where the oil storage tank is lower than the pump.

Access for the fuel feed to the burner should be via a suitable

tapping made in the top of the tank, and the fuel feed pipe

should extend to not less than 100mm above the bottom of

the tank.

A none return valve with a metal to metal seat should be

tted, especially if the return pipe work is terminated at a

level above the draw o tube. The non- return valve must be

removable for service and maintenance purposes, and the

return pipe from the pump must therefore be extended down

into the tank to the same level as the suction pipe.

The presence of a tamper proof isolating valve tted within

the return pipe is only required if there is a risk that oil will

siphon out of the tank if the return pipe is disconnected at the

pump during maintenance or servicing and if the none return

valve has been omitted.

Caution

The Deareator must be tted the burner side of the inlet fuel

lter

Maximum lift should not exceed 3.5 metres, and the vacuum

should not exceed 0.4 bar.

Each heater must have a separate fuel supply.

Note

It is strongly recommended that the separate manual

concerning the operational details of the burner supplied with

the heater as part of the information package is studied prior

to installation.

1.9.5 Pressurised ring main system

This system is used to supply a number of units from a

common storage tank.

A booster pump is used to provide the pressure to push the oil

around the ring main and back to the tank.

Pressure reducing valves should be tted on the delivery pipe

to each heater to ensure that the pressure at the burner pump

is less than 6 psi.

Caution

The internal by-pass plug must be removed from the burner

pump when used in a pressurised ring main application.

1.9.6 Pipe work and ttings

Warning

Galvanised or plastic pipe work and ttings must not be used.

(see BS 5410 Part 1 1997)

Caution

All joints must be sealed properly, if necessary using PTFE tape

or other approved sealing media.

Caution

The pipe work must be eectively sealed so as to prevent the

ingress of air.

Note:

It is advisable to check all pipe work prior to installation to

ensure that there is no loose debris or scale present.

Black iron pipes can be hammered to assist in the removal of

these contaminants.

Note:

The oil feed to each heater must be tted with a re check

valve and isolating valve.

Caution

The re check valve must be operated by way of a fusible link

positioned so that it is above the burner.

Note:

Any waste oil or sludge must be disposed of correctly.

Warning

Never dispose of it by dumping or tipping it down drains or

into watercourses where ground water can become polluted

and environmental damage caused.

1.10 Electrical supply

Wiring external to the the Suspended Oil red Unit Heater

must be installed in accordance with any local, national, and

European regulations, as well as meeting the appropriate

requirements of IEE regulations.

Caution

The means of connection to the main electrical supply must

allow for complete electrical isolation of the heater,

furthermore, in the case of a unit wired for a three phase

supply, the supply should only be used to serve the heater

itself and no other plant or equipment. The position of the

isolation switch must be such that it is adjacent to the heater

and easily accessible at all times. In addition, the isolator itself

must have a contact separation of not less than 3mm.(as per

BS5991 clause 20.2).

The Control fuse ratings are detailed on the appliance data

plate.

Warning

Ensure that the electric and oil supplies are turned o before

any electrical work is carried out on the heater.

Caution

Ensure that wiring cannot make contact with any surfaces

liable to be subject to high temperatures or where the

insulation of the wiring could be impaired as a result of such

contact.

Warning

All connections must be checked to ensure that they are

secure, and free from corrosion.

Warning

Terminals and connections should also be checked to ensure

that no stray strands are bridging terminals.

Caution

Final connections for any additional external controls must be

completed on site, and must be carried out according to IEE

regulations.

Separate user information is provided for the time control unit

and the burner, and forms part of the product information

pack which accompanies every heater when despatched.

Warning

All heaters are supplied fused and pre-wired, all must be

earthed.

Caution

The main electrical supply must not be switched o or

disconnected as a method for stopping the heater, the

exception to this is in an emergency, or during servicing, when

the heat exchanger has been allowed to cool suciently to

prevent any damage from occurring. Claims for damage will

not be considered if they have resulted from incorrect wiring

or the incorrect use of the heater.

Warning

Always ensure that the appropriate personal protective

equipment is used.

Pressurised oil feed system

Burner oil pump details 205 - 375 suction feed

Burner oil pump details for heater models 30 - 180 oil lines

L metres

H(m) 8mm I.D 10mm I.D

0.0 35.0 100.0

1.0 30.0 100.0

1.0 25.0 100.0

1.5 20.0 90.0

2.0 15.0 70.0

3.0 8.0 30.0

3.5 6.0 20.0

1.11 Air supply

Consideration must be given to the provision of air for the

purposes of combustion and ventilation of the heated space,

plant room or enclosure where heaters are to be installed.

It is a requirement that the area where the air heater is located

must have a permanent air vent of negligible resistance direct

to the outside air.

Such air vents must be positioned so as not to become

blocked or ooded, nor should they be placed so as to

introduce undesirable matter (e.g. ammable, volatile, or

aggressive chemicals/compounds or potentially hazardous or

harmful substances) either direct from the outside, or through

their proximity to an adjacent extraction system.

Note:

It is strongly recommended that BS6230 is referred to for

further information concerning ventilation requirements

Where mechanical ventilation is used it is a requirement that

the inlet is of the mechanical type, and the outlet is either

mechanical or natural.

1.11.1 Heaters installed within the heated space.

Where heaters are installed within the space to be heated (i.e.

not a plant room or enclosure) then:

Combustion air or heater related ventilation air will not be

required if -

• The design air change rate of the heated space is 0.5

air changes per hour or greater

• The design air change rate may be satised by natural

inltration or by mechanical ventilation

Combustion and General ventilation will be required if -

• The design air change rate of the heated space is less

than 0.5 air changes per hour

• Where the heated space has an air change rate of less

than 0.5 air changes per hour then it will be necessary to

provide either natural ventilation openings to the heated

space (section 1.11.1.1. refers) or the mechanical ventilation

of the heated space (section 1.11.1.2. refers)

1.11.1.1 Natural Ventilation Openings to the Heated Space.

If the heated space design air change rate is less than 0.5

air changes per hour then provision for low level natural

ventilation openings will only be necessary.

The minimum free area of the low level natural ventilation

opening shall be:

• 2cm2 for each kW of rated heat input

The low level natural ventilation opening should be situated

on an external wall and be within 1000 mm of oor level.

The following table provides specic data for each heater

model as -

Minimum Free Area of ventilation

opening

Model High Level cm² Low Level cm²

40 None 88

60 None 128

70 None 166

90 None 192

100 None 230

1.11.1.2 Mechanical Ventilation to the Heated Space.

In the event that the heated space has a design air change of

less than 0.5 air changes per hour and that installer prefers to

mechanically ventilate the heated space rather than provide

ventilation openings then:-

• The heated space needs to be mechanically ventilated

so that the design air change is 0.5 air changes or greater.

• It is a requirement that the mechanical ventilation shall

be of the ‘input’ type with either natural or mechanical

extraction.

• Systems of mechanical extraction with a natural inlet

shall not be used.

It is necessary to provide an automatic means to safely inhibit

heater(s) operation should mechanical air supply fail for any

reason.

1.11.2. Heaters Installed within a Plant Room or Enclosure.

A plant room means a room housing the heater plant and

probably other items of building service plant and would

generally have generous space for maintenance.

An enclosure is where the heater is installed within a

compartment or conned area where space is limited.

Whereheatersareinstalledwithinaplantroomorenclosurethen

provision for both combustion air and air for general ventilation

will be required by means of high and low level ventilation

openings (sections 1.11.2.1 refers to plant room applications

and sections 1.11.2.2 refers to enclosure applications).

Alternatively the plant room or enclosure may be

mechanically ventilated (section 1.11.2.3 refers).

1.11.2.1 Natural Ventilation Openings to Plant Rooms

For plant room applications the minimum free area of

ventilation opening shall be:

• At high level 2 cm2 for each kW of rated heat

input.

• At low level 4 cm2 for each kW of rated heat

input.

The high level ventilation opening should be sited on an

external wall and positioned as high as is practical and always

within the top 15% of the wall height.

The low level natural ventilation opening should be situated

on an external wall and be within 1000 mm of oor level.

The table below provides specic data for each heater model

as -

Minimum Free Area of ventilation

opening

Model High Level cm² Low Level cm²

40 88 176

60 128 258

70 166 332

90 192 384

100 230 460

1.11.2.2 Natural Ventilation Openings to Enclosures

For enclosure applications the minimum free area of

ventilation opening shall be:

• At high level 5 cm2 for each kW of rated heat

input.

• At low level 10 cm2 for each kW of rated heat

input.

The high level ventilation opening should be sited on an

external wall and positioned as high as is practical and always

within the top 15% of the wall height

The low level natural ventilation opening should be situated

on an external wall and be within 1000 mm of oor level.

The table in the next column provides specic data for each

heater model as:-

Minimum Free Area of ventilation

opening

Model High Level cm² Low Level cm²

40 220 440

60 320 640

70 415 830

90 480 960

100 575 1150

1.11.2.3 Mechanical Ventilation to a Plant Room or

Enclosure.

In the event that the installer prefers to mechanically ventilate

the plant room or enclosure rather than provide ventilation

openings then:-

• The plant room or enclosure needs to be

mechanically ventilated at the rate of 4.14 m3/h of

fresh air per kW or rated heat input.

• It is a requirement that the mechanical ventilation

shall be of the ’input’ type with either natural or

mechanical extraction. Where mechanical extraction is

selected then the extraction rate should be 5%-10% less

than the input rate.

• Systems of mechanical extraction with a natural inlet

shall not be used

It is necessary to provide an automatic means to safely inhibit

heater(s) operation should mechanical air supply fail for any

reason

The table to follow provides specic data for each heater

model as -

Mechanical Ventilation Rate

for Plant Room or Enclosure

Model M³/h

40 182

60 265

70 344

90 397

100 476

1.12 Air distribution system

The air heater should be positioned to enable maximum

circulation of discharged warm air within the area to be

heated, whilst taking account of personnel within the area,

sources of cold air ingress, and obstructions.

Caution

Ensure louvres are adjusted outwards and ensure blades are

not resonating

The air temperature rise on passing the heat exchanger is

typically around 34°C

A full and unobstructed return air path to the air heater must

be provided (see 1.11 Air Supply).

Where the heater is positioned to deliver blown air through an

opening in a wall, return air intakes should be located so that

they cannot become blocked. Similarly these intakes must

be positioned so as not to draw in odours, fumes, hazardous

vapours or particles.

1.13 Flue system.

Warning

It is essential that the products of combustion are ued to

the outside of the building. Each heater must have its own

separate ue, with a ue diameter of not less than is detailed

in section 1.15 within this manual.

The minimum vertical length of ue must not be less than

1m. The ue should rise vertically, and the number of bends

should be kept to a minimum.

Note:

It is strongly advised that BS 5854; 1980, and BS 5440; parts 1

and 2, are used as consultative documents when considering

ue requirements.

Care should be taken to ensure that the ue terminal is not

situated in a high-pressure area, the proximity of buildings

and other obstacles which will inuence this must be taken

into account, preferably at the design stage.

Provision must be made for the disconnection of the ue for

inspection and service requirements, and it is strongly advised

that where bends are tted inspection covers are included.

Flue should be supported at intervals not exceeding 1.8 mtrs

The materials from which the ue is constructed must be

non-combustible, resistant to internal and external corrosion,

and be capable of withstanding the stresses and loadings

associated with normal use.

When designing the ue system the prevention of the

formation and entrapment of condensation must be a key

consideration.

Twin wall or insulated systems are recommended, as they tend

to inhibit the formation of condensates.

Where condensation is unavoidable traps should be included

to encourage the condensates to ow freely to a point from

which they may be released, preferably into a gully.

The condensate pipe from the ue to the disposal point must

be made from corrosion resistant pipe of not less than the

internal diameter of the drain pipe.

If the ue passes through a wall, ceiling, or roof made from

combustible material then it has to be sleeved so as to provide

a minimum of a 25mm void between the exterior of the ue

and the internal wall of the sleeve. The maximum permitted

temperature of any adjacent combustible material is 65°C.

The position of the ue and its terminal should be such that it

does not impair the combustion process.

It should terminate in an exposed position so as to allow the

escape and dissipation of ue gases without risk of their

re-entering the property through windows, ventilation ports,

etc. The ue should extend to at least 1m above the height of

any object within 3.5m of the terminal.

Flue terminals should be tted on all ues, the terminal must

be of the approved type, and have outlet grilles on all sides

giving a total free area of at least double that of the ue.

Caution

It is imperative that the ue should be properly sealed where

it passes through the roof, this can best be achieved by using

the approved method of roof ashing plate and cravat.

Note:

It should be noted that claims made under warranty and at-

tributed to the ingress of water may not be considered

especially if an approved method of sealing has not been

used, or if the design of the ue has not made provision for

possible condensation problems.

1.14 Dimensions

Model A B C D E F G H J K L M N P

40 780 1050 895 125 755 17 640 20 36 182.5 340 380 212 139

60 780 1475 895 150 1177 17 640 20 36 170 340 380 212 139

70 780 1475 895 150 1177 17 640 20 36 170 340 380 212 139

90 980 1750 1055 175 1365 17 770 20 36 231 405 810 300 219

100 980 1750 1055 175 1365 17 770 20 36 231 405 810 300 219

Model A B C D E F G H J K L M N P R S

40 780 1050 1240 125 755 17 640 20 36 182.5 340 380 212 139 729 730

60 780 1475 1175 150 1177 17 640 20 36 170 340 380 212 139 1151 730

70 780 1475 1175 150 1177 17 640 20 36 170 340 380 212 139 1151 730

90 980 1750 1376 175 1365 17 770 20 36 231 405 810 300 219 1339 930

100 980 1750 1376 175 1365 17 770 20 36 231 405 810 300 219 1339 930

1.15 Technical Details

Model 40 60 70 90 100

Heat Output (max) kW/hr

Btu/hr 39.78

135,725 58.61

200,000 71.88

245,240 87.92

300,000 102.50

350,000

Heat Input (Nett) kW/hr

Btu/hr 44.60

152,175 64.25

219,220 82.73

282,250 96.04

327,690 114.8

391,640

Nett Eciency % 89.23 91.22 89.10 91.55 89.3

Burner Type Riello G5 G10 G10 G20 G20

Oil Connection BSP 3/8 3/8 3/8 3/8 3/8

Fuel Consumption 35s Imp gall/hr

litre/hr 1.0

4.5 1.43

6.5 1.76

8.0 2.13

9.7 2.55

11.57

Burner Pressure 35s Psi

Bar 190

13.1 160

11.0 160

11.0 180

12.4

Nozzle Size 35s 0.85 - 60°S 1.35 - 45°S 1.75 - 60°S 2.0 - 60°S 2.25 - 45°S

Fuel Consumption 28s Imp gall/hr

litre/hr 0.98

4.45 1.6

7.2 2.0

9.0 2.3

10.4 2.5

11.34

Burner Pressure 28s Psi

Bar 150

10.5 140

9.5 130

8.8 140

9.5 135

9.2

Nozzle Size 28s 1.0 - 60°S 1.5 - 60°S 2.0 - 60°S 2.25 - 60°S 2.75 - 60°S

Head Setting 0 ue resistance Number 6 4 5 2 1.5

Air Setting 0 ue resistance Number 5.5 3 4.5 2 2.8

Air Flow (std) m³/sec

ft³/min 1.52

3220 2.6

5500 2.6

5500 2.77

5800 2.77

5800

Outlet Pressure OUHC Pascals

Ins WG 150

0.6 180

0.72 150

0.6 180

0.72 180

0.72

Air Throw (approx) mtrs

ft 23

75.5 37

121 37

121 39

128 39

128

Temp Rise Through Heater °C

°F 32

90 34

93 35

95 33

91 35

Combustion Chamber mbar 0.14 0.14 0.14 0.14 0.14

Sound Level dba 65 68 69 71 71

Flue Resistance Min mbar

Max mbar -0.1

+0.2 -0.1

+0.2

Flue Diameter mm 125 150 150 175 175

Electrical Supply V/Hz/P 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50

Rated Input OUHA kW 0.55 0.9 0.9 1.1 1.1

Fused Isolator Size OUHA Amps 6 6 6 10 10

Running Current OUHA Amps 1.5 2.5 2.5 4.0 4.0

Rated Input OUHC kW 1.1 1.1 1.1 2.2 2.2

Fused Isolator Size OUHC Amps 10 16 16 20 20

Running Current OUHC Amps 8 11 11 15 15

Electrical protection IP 20 20 20 20 20

Weight OUHA kg 116 177 177 240 240

Weight OUHC kg 138 212 212 280 280

1.15.1 Reference Information

Doc/Ref Title/Subject

BS 5410-1 & -2 Code of Practice for Oil ring

BS EN 292-1 &-2 Safety of Machinery

BS EN 60204-1 Safety of Machinery - Electrical

BS EN 60335-1 Safety of Electrical Appliances

BS EN 55014 Electromagnetic Compatibility

BS EN 50165 Safety of Electrical Equipment

BS 5854 Code of Practice - Flues/Flue Structures

BS 799-5 Oil Burning Equipment - oil tanks

OFTEC OFS T-10 Polyethylene oil storage tanks

BS 715 Metal Flue Pipes and Fittings

BS 5440-1 Specication/Installation of Flues

BS 5440-2 Ventilation Requirements Gas Appliances

BS779 Oil Burning Equipment - Burners

ISO 228/1 Pipe Threads Seals and Couplings

Popular Heater manuals by other brands

Helios

Helios Radiant Black EH2000/W2BK operating instructions

Govee

Govee H7130 user manual

Daewoo electricals

Daewoo electricals HEA1200 instruction manual

EUROM

EUROM 34.256.7 instruction manual

Remington

Remington HH-400T-KFA User's manual & operating instructions

Desa

Desa B50H owner's manual

Kroll

Kroll Kozy Instruction handbook

Sonnenkonig

Sonnenkonig NIVEN user manual

Goldair

Goldair GCT400 operating instructions

BAR-BE-QUICK

BAR-BE-QUICK inStove BS1251 Installation and operating instructions

Hyco

Hyco DF20 instruction manual

VOKERA

VOKERA Syntesi e Installation & servicing instructions

Trumatic

Trumatic e2800 Information

Honeywell

Honeywell HeatGenius HCE840 Series manual

Superior Radiant

Superior Radiant SRP STEALTH Installation, operation and service instructions

Saturn

Saturn ST-HT 8341K instruction manual

EUROM

EUROM TH1800S manual

Ballu-Biemmedue

Ballu-Biemmedue GE 36 manual

BENSON OUH 2 40 User manual

Popular Heater manuals by other brands