BENSON OLYMPIC WH Installation, Commissioning, Servicing And User Instructions

-

((

OLYMPIC

GAS

FIRED CABINET HEATER RANGE

INSTALLATION,

COMMISSIONING,

AND

USER INSTRUCTIONS

SERVICING

Ct~l'"tific(lte

FM 14923

Number

-

CONTENTS-

1.0

1.1

1.2

1.3

1.4

1.5

2.0

2.1

2.2

2.3

2.4

2.5

2.6

3.0

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

3.9

3.10

4.0

4.1

4.2

4.3

4.4

5.0

5.1

5.2

5.3

6.0

7.0

8.0

8.1

9.0

9.1

Compliance Certificates General General Delivery Warranty Location & Positioning

Gas

Supply Electrical Air

Supply Minimum Air

Distribution

System

Flue Installation Packaging Flooring Minimum

Assembly

Flue Installation

Gas

Installation &

Electrical Installation &

Air

Distribution Warm Heater Commissioning Pre-Test . Ignition. Air Hand Servicing Planned Servicing Servicing -Recommissioning Fault Wiring Technical Technical Data Reference Parts

Air

Distribution

Over

Diagnosis

Listing

Notices

of

Conformity Product Requirements

& Pre-installation

Supply

Space

Clearances

Registers

Control

Servicing

Procedure

Diagrams

Data -Net

Documents -Standards,

Information

.

Requirements

System

& Siting .

.

Connection

Installation

System

.

by

Flow

by

Olympic

.

Connection

- Major

Charts

Model

Efficiency

WH

Checks

Component

and

SECTION A

Parts

. Burner Calculations

Models

Type

Codes

of

Practice

Page

No.

3

4 4

5 5

6

7

7 8 8

9

11

15 15 15 15 15

16 16 16 16

17 17

18 19

21 23 23

24 24

25

27

28

30

34 35

37

38

20-45-056

1l.95/ PM/

CE

(1)

Warranty Registration Burner Timer Updated

Information

Infonnation

Manual

SECTION B

SECTION C

10.0

10.1

10.2 10

.3

10.4

10.5

10.6

10.7

10.8

Fig 1 Fig 2 Fig 13 Fig 14 Fig

15

Fig

16 -18

Fig

19

-12

- 22

Introduction

Commissioning/hand

Servicing

Start

up

proced Stop proced Shutdown

Ventilation

ure

procedure

onlv

.I

Lockout situations Contact

Information

ILLUSTRATIONS

Exploded Flue configuration Heater Time clock controls Fan

and

Fan

and

Fault

view

control

limit Stat

motor

diagnosis

diagrams

panel

assembly

flow charts

over

Section A -

Pag

e No.

10

12-14

18 18

19 20

28-29

2

1.0 Compliance notices

The

Olympic Benson parameters

The Essential

Environmental

Olympic

The

WH

range

of ISO 9001.

range

Requirements

of

gas

Limited

has

been

independently

of the following

Gas

fired

within a strictly

Appliance

Cabinet

European

Directive

Heaters

controlled

tested

detailed

quality

and

assessed,

Directives. (90/396/EEC)

herewith

environment

and

has

is

manufactured

within

been

found

to

by

the

meet

Electromagnetic

Benson ensure therefore accordance manufactured, basic read installation

Benson with a comprehensive installation, use,

Where information

It

is Environmental supplied the

safety instructions. In

so

as

to

Benson reserves the right to subject to

Contained highlight

Caution failure

Warning component personal

Environmental

their

Cabinet

only

be

with

precautions

the

appropriate

or

use.

Environmental

proprietary

and

the

responsibility of

by the manufacturer,

ensure

or

its

Environmental

agreement

within

certain points.

is

used

damage

is

damage,

injury.

Heaters

used

the

assembled, inspected,

which

and

maintenance, of

instructions are also

Ltd, to

continued

amend from

when

to the

used

when

Machinery

Low Voltage Directive

Compatibility

Product

Limited, as a manufacturer,

are safe

in

the

manner

recommendations

the installer

sections

Limited

information

items

ensure

addition,

The

the

text

failure to follow

heater

but

also

of

the

supports

pack; this clearly defines

are

incorporated

the

installer, owner, user,

that

they

and

that

operators

safe

and

Ltd

has a commitment

or

change

Notified Body.

of

the

or

its

component

failure to

to a

hazardous

Directive

Liability Directive

and

without

and

for

detailed

and

tested,

and

user

information

the

appliance(s).

provided

are

they

efficient use.

the specification of

manual,

or

heed

(89

/ 392/EEC)

(73/23/EEC & 93/68

Directive

the

should

all

new

into

as

familiar

are

suitably

must

the

implement

parts.

or

implement

situation

(89/336/EEC & 91 / 31/EEC)

(65/374/EEC)

has

risk

when

purpose

herewith.

with

safety

be

aware

pack

products

Benson

part

of

the

or

hirer, of

with

the

aware

be

suitably

to

continuous

the

words

'Caution'

the

being

/ EEC)

taken

reasonable

properly

for

which

The

and

of,

accompanying

being

mandatory

Environmental

information

such

appropriate

of the

trained

Pakaway

instruction(s) can lead to

instruction(s)

they

heaters

quality

and

they are

supplied

products

purpose

improvement,

and

created

and

used. These heaters

were

have

in

mind,

strongly

the

to

instructions for

Ltd

products,

pack

.

supplied

information/manuals,

of

in

the

use

AH

Cabinet

'Warning'

can

where

there

practical

intended,

been there are certain

heater,

their

the

of

and

lead

steps

designed,

advised

prior

customers

the

detailed

by Benson

manuals

the

appliance

therefore

Heater

are

used

premature

to

not

is a

should

and

safe

and

range

only

risk

to

in

to

of

The prEN

Olympic

1020 -

range

of

gas

Requirements

hea

ting

incorpora

combustion

fired cabinet

for

non

domestic

ting

products.

heaters

a fan to

conform

gas fired forced convection

assist

3

to

the

transporta

following

tion

of

harmonised

air

heaters

combustion

standards;

for

space

air

and/

or

BS

EN 292 -

BS

EN 292 -

BS

EN 60204 -

BS

EN

60335 -

BS

EN 55014 - 1993

prEN

50165 - 1995

Part

1 : 1991

Safety of Machinery - Basic Concepts, General Principles for Design

Basic

terminology, methodology

Part

2:

1991

Safety of Machinery - Basic Concepts, General Principles for Design

Technical

Part

Safety of

Specification

Part Safety of

General

Limits electrical purposes,

Electrical

purposes,

Principles

1 : 1993

Machinery

for

1 : 1988

Household

Requir

and

methods motor-operated electric tools

Equipment

safety

and

Specifications

- Electrical

General

emen

requirements

Requirements

and

ts

of

of non-electric

Equipment

Similar Electrical

measurement

and

thermal

and

similar electric

heating

for Machines

Appliances

of

radio

appliances

apparatus

appliances for

disturbance

for

household

characteristics

and

of

similar

1.1 Certificates

Certificates

Limited.

Notified Body PIN reference is 63AQ0533

are

of

conformity

available

from

the

Quality

1.2 General product information

The

Olympic

from

approximately mounting,

floor supports.

The heaters can

must

be

connected heater

Each dispatch. The safety functions of the the burner.

Note

Neither Olympic mechanical, chemical, use

when

WH

installed in accordance

WH

or

is fitted

asbestos

range

60kW to 375kW

horizontal

suit

to its

nor

of

indirect

or

down

either dilcted applications, or

own

individual

with

a forced

soft

soldered

Cabinet

and

thermal

with

gas

and

depending

flow

open

draught

burner

joints

Heaters. The

stresses

the

manufacturers

fired forced convection heaters

mounting, above

flue.

burner

are

which

Control

upon

be

which

by

way

used

in

materials

they will

Department

the specification are suitable for either

ground

used

as free

has

been

of a fully sequential control box fitted to

the

construction

selected

be

subject to

recommendations.

at

Benson

have

level on

blowing

test fired

or

for

use

during

Environmental

an

output

purpose

units,

and

manufacture

can

foreseen

built

and

each

pre-set

withstand

range

steel

unit

prior

of

the the

normal

to

4

1.3 General requirements

Caution

Ensure

pressure

Installation, commissioning,

and

competent

Warning

Unauthorised

on

intended

a

hazard.

Note

To installation, commissioning, servicing, such a situation thereby

The criteria. (See sections 3

Prior

that

the

gas

service to the

is in accordance

persons.

modifications

use,

or

ignore the

constitute a hazard.

installation

to installation the following

warning

could

with

installation

and

also

compromise

of

the

appliance

and 9).

the

supply

and

servicing

to

the

contrary

caution notices,

points

appliance

type

appliance,

to

or

use, will jeopardise

the safe

must

carries the correct

and

pressure

must

only

or

the

manufacturers

and

to ignore the

and

meet

aU

should

be

stated

be

carried

departure

any

efficient

the

considered;

running

relevant

gas

type

and

that

the

on the

from

recommendations

advice

applicable warranty, moreover,

European,

appliance

out

by

appropriately

the

manufacturers

from

of

the

data

may

the

manufacturer

appliance

national,

plate.

qualified

guidance

constitute

itself,

and

supply

on

and

local

a)

The position of b) The position c)

The position of the d) The position of the

controls.

e) The position of the

f)

The

height

circulation problems.

g)

The

position of the

the

of

the

(if applicable)

Caution

The

heater

the

atmosphere may

affect located in a fork lift trucks,

must

is

burner

position

overhead

not

highly

operation. Suitable protection

where

heater heater heater

heater

for the relative to the relative to the

heater

be

relative to the electrical services,

relative to the

at

which

relative to service

installed

corrosive, has a

it

may

be

cranes

etc.

optimum

the

within

susceptible to external mechanical

efficient route supply

supply

heater

and

an

area

high

distribution

of the flue

of gas

of fresh air is to

maintenance

where

degree

should

and

be

mounted

the

conditions

of salinity,

be

provided

and

requirements.

or

circulation of

if

appropriate,

and

potential

are unsuitable, e.g.

where

for the appliance

damage

high

wind

from; for example,

warm

any

stratification/

air

additional

where

velocities

when

it is

1.4

Delivery

The

heater

the following checks a)

The

model

b)

That

it is

and pre-installation checks

is

supplied

is as

undamaged

should

per

order

wrapped

be

carried

in

heavy

out;

duty

5

protective

polythene. On

receipt of the heater,

c)

That

it is

suitable

d)

That

it is

suitable

If

any

of

these Benson for insurance

Environmental

damage,

criteria.

this

must

1.5 Warranty

The

heater labour, warranty dispatch Environmental

and

Note (i)

The

warranty

The

a)

Benson

is

supplied

second

on

the

combustion

from Benson

Ltd 'conditions of business'.

may

warranty

Environmental

for the

for

the

points

year

be

registration/

are

Ltd as

be

reported

with

covering

Environmental

invalidated

Ltd

gas

supply

electrical

not

soon

a 2

chamber/heat

if -

commissioning

and

supply

satisfied

as possible

in

writing

year

warranty

parts

only. In

Ltd,

pressure

then

contact

by

telephoning

within

exchanger. The

and

24

hours

made

up

addition

is subject to the

card

has

should

to this there is also a 10

be

111ade

01547-528534. In the case

of delivery, in

as follO\",s; first

warranty

terms

not

been

with

order

year

commences

detailed

completed

the

Sales Office at

to

comply

covering

year

from the

within

and

parts

time related

the Benson

returned

of

claims

date

with

and

of

to

b) The installation is

c)

The

flue

arrangement

manufacturers

d)

Air

flow

e)

Internal wiring

f)

The

main

g) The

h) The

i)

j)

heater heater

The

heater

The

manufacturer's

through

recommendations,

on

electrical

has

been

is not

has

not

Note (ii)

All

warranty place; (1) full

installation

and

address.

Faulty

provided inspection credit specifically

supplied

heater

parts

on

to

not

the verify

claims

model

details

must

back

upon

included

not

in

accordance '",ith the

and

the

heater

the heater has

supply

subject to

operated

been

recommended

(2)

(name

be

cover

the

subsequent

within

input

at the rating(s) laid

operated

must

contain

heater

and

returned

of

claim.

Replacement

is

the

air

not

and

serial

to

this

scope

supply

codes

in

accordance

been

tampered with

to the

address)

validation

heater

affected

or

used

minimum

the

following

number

the

Knighton

manual

of the

general

for

the

of practice,

with

has

been

by

the ingress of

down

within

(4)

parts

the

service

(3)

order

details

Spares

and

section

supplied

of

the

warranty

requirements

heater or

the

or

in the

normal requirements

information

or

warranty

.

are

similar

manufacturers

unauthorised

interrupted

water

manufacturers

scope

reference/ symptoms

Department,

10.S.

prior

of this

not

in

standards

service/repairs

during

in

any

of

its

have

to

enable

date

of

fault

the

Any

such

to this

claim.

Consumable

manual

accordance

technical specifications

the

heating

form

technical specifications

intended

not

been

processing

of

order,

(5)

installers

address

parts

may

be

with

undertaken

mode

application

complied

together

of

which

will

undergo

charged,

items

to

name

and

with

take

with

the

is

a

are

Note

responsibility for loss

(iii)

Notification

resulting

from

is

required

any

immediately

additional

failure

of

a fault is damage the heater(s).

that

has

6

suspected.

been

caused,

The

manufacturer

expense

incurred,

will

not

or

consequential

accept

2.0 Location/positioning

Warning

All of the basic criteria additionally, the relevant regulations within a special risk area (e.g. spraying

Indirect fired heaters heater

The heater chlorides, fluorides, salts, heater be positioned

The location chosen for location

supply, electrical supply, whilst also provi.ding

The which Any that

In areas circulation

All Olympic Cabinet Heaters are fitted

375) this is incorporated into the design of the flue gas exit duct. is designed to service connections

standards

takes place,

to

supply

must

heater

is sufficiently

combustible material adjacent to the heater or flue system

its surface

should

Cabinet

and

insurance

air to

must

also

must

temperature

where

it is be

vent

and

not

allow

be installed on a flat

direct into the flue via the exit duct. Care

and

must

be satisfied prior to commencing installation

Heater

guidelines

criteria, especially if it is

where

must

such

areas.

be installed within

or

where

the

for

robust

does

proposed

drawn

controls well

must

where

woodworking

not

be located in

other

burner

heater

adequate

to

withstand

not exceed 65°C.

that

up

and

be

positioned

(see section 9.0), as well

petrol

aggressive

maintained, thereby offering the best

away

engined

machinery is

hazardous

an

environment

or

could

more

be adversely affected

must

allow

clearance

good

and

level surface

the

weight

than

with

a pressure relief facility, on all models (except WH-

from the pressure relief vent.

and

installed so as to

proposed

vehicles are stored

operated,

areas, however, it is permissible for the

where

volatile

for the fitting of for

one

chemicals/compounds.

the

air

and

safe

working

made

of the

heater is to be installed, a general scheme of

heater

and

commissioning,

comply

as

meeting

that

etc,).

there is a high concentration of

by

an

supply,

from non-combustible material,

and

must

On

the WH-375 the pressure relief

should

national

that

heater

or

parked,

high

winds

effective flue system. The

return

access.

be so placed

therefore be taken in siting

any

ancillary

heat

distribution.

air

with

and

local fire

is to be installed

where

Nor

or

circulation,

cellulose

should

draughts.

equipment.

or

shielded so

all

the

gas

Warning

Under exhaust

2.1 Gas

The gas classified

12E+

The heater separate the service

The gas metering) is capable of delivering the required minimum pressure has

upon

If it is necessary to fit a gas pressure booster, the controls switch which gas

supplier

no circumstances

gas

impaired

supply

Olympic

under

and

12E+R

must

approved

pipe

and

supplier

burner

drop

on single

other

plant

must

is contacted prior to the fitting of the unit.

must

the

pressure relief be restricted, blocked,

or

re-directed.

WH

range the

be

isolating gas cock positioned adjacent to

the heater.

should

pressure

sharing

be fitted

of cabinet heaters

following categories,

compatible

have

can be achieved.

and

multiple heater installations, the supply.

on

with

the gas supply,

been contacted to confirm that the

the

supply

/inlet

are

all

manufactured

based

dynamic

Consideration

side

of the booster.

upon

or

have the free exit of

and

pre-set for

the destination of the heater; I2H

and

each heater

and

volume

should

and

the affect

must

upstream

of gas, thereby

It

must

supply

have

also

that

include a low pressure cut-off

is also a requirement

use

with natural

be installed

of the union

feed

(pipework

ensuring

been

given

such a

phenomenon

12L

with

a

between

and

that the

to

the

that

the

7

Note

Reference to The Institute of Gas Engineers publication UP-1

strongly advised.

Service

connection

system

and

on

purged

Installation

the

heater, all joints

and

tested for

pipework

must

soundness.

must

be

of a diameter

sealed

using

an

approved

and

equal

UP-2

to

sealing

together

or

greater

compound, and

with

than

BS

the

6891

inlet

is

the

2.2 Electrical

Wiring external to

and

European

The

means

isolation of

supply

that

it is adjacent to the heater(s)

must

have

fuse ratings are

the

should

a contact

supply

the

regulations, as well as

of

connection

heater(s), furthermore,

only

be

separation

detailed

Warning

Ensure

on

the temperatures, All cabinet heaters

that

heater.

the

electric

Ensure

and

where

must

that

Caution

The

main the heater, has

been

allowed

Claims

incorrect

use

electrical

the

exception to this is

for

damage

of the heater.

supply

to cool sufficiently to

cabinet

to

used

to

serve

on

the

and

wiring

the

insulation of the "viring

be earthed.

must

wiE

not

heater

meeting

the

main

the

and

easily accessible

of not less

appliance

gas

supplies

cannot

not

in

an

prevent

be

considered

must

be

installed in accordance

the

appropriate

electrical

in

the case of heaters

heater(s).

than

3mm

data

plate.

are

make

contact

be

switched

emergency,

any

if

The

(as

turned

off

or

damage

they

supply

position of the isolation

with

could

requirements

must

wired

at

aU

times, additionaUy

per

BS

5991

off before

or

disconnected as a

during

have

any

surfaces liable to

be

impaired

servicing,

from occurring.

resulted

with

any

of lEE regulations.

allow

clause 20.2). The

for

complete

for a three

electrical

as a result of

when

from incorrect

phase

switch

the

work

be

method

the

heat

local, national,

electrical

suppiy, must isolator itself main

is carried

subject to high

such

for

exchanger

wiring

the

be

such

isolator

out

contact.

stopping

or

the

2.3 Air supply

Provision

It

is a negligible resistance direct to blocked volatile, either direct from the outside,

The criteria necessary for establishing

must

be

requirement

or

flooded,

or

aggressive

Position

made

that the area

nor

should chemicals/

of

vent

Low

level

(inlet)

High

level

(outlet)

for the existence of

the

outside

they

or

through

where

the air air. Such air vents

be

placed

compounds

their proximity to

the

an

air

supply

heater

so as to introduce

or

minimum

is located

potentiaUy

size of

Area

of

540cm

rated

270cm

rated

8

2

input

2

input

must

an

vent direct to

+ 4.5cm

+ 2.2Scm2

for

both

combustion

must

have a permanent

be

positioned so as

undesirable

hazardous

adjacent extraction

natural

2

per

heater

per

heater

vents

outside

kW

of

kW of

matter

or

is

and

ventilation.

not

(e.g. flammable,

harmful

detailed

substances)

system

below;

air

vent

to become

.

of

Where

and

the

outlet

mechanical

is

either

Caution

Systems Furthermore, low

level manual. recommended control interlocked failure

If

the

do

still apply, as

2.4

Minimum

The

section 3.3

of

ventilation

where

and

The

natural

or

restriction.

heater

minimum

later

be

that

is to be installed

does

within

ventilation is

mechanical

the air

capable

extraction

natural

to

the

burner

the

requirement

that

supply

of

extraction

used

it is a

or

natural.

employ

providing a minimum

air

must

within

mechanical extraction

is

by

way

vents

must

vents

be fitted to

its

own

for

minimum

space requirements

space

requirements

this

manual.

for single

requirement

of a

mechanical

throughput

have a minimum

are

situated

ensure

separate

and

at

burner

building

space.

multiple

that

the inlet is of the mechanical type,

and

means

area

high

heater

natural

the

as

level.

shutdown

or

inlet

must

inlet

must

detailed

per

plant

applications

in section

above,

Additionally, an

in the

room, the

not

be

positioned

and

it is

event

above

are

of

detailed

be

used.

at

8.1

of

this

strongly

automatic

air

flow

details

in

2.5 Air distribution

All materials

a fire

hazard

take

account work, working insulation material.

the heater(s) inlet fresh

arrangement flue. heater then level, it openings resistant material

it

must

life. Where interjoist spaces are

In installations

on

the heater. The limit for recirculation

air

.

Where

The

return

respectively,

the

lowest

must

in the

used

and

should

of

the

also

where

must

be

the

heater

must

air

edge

also be fitted

structure

and

within

be

environment

take

account

forced recirculation is a feature, a full

provided,

is installed within a

be

such

that the air circulation fan

intake

within

of the inlet

and

the

with

of

constructed

system

the construction of

made

the

from thermally inert materials.

into

which

of

the

with

return

warm

compartment

an

air

duct

access point(s) to

plant

room,

to

prevent

the

stresses

used

to route

air

should

compartment

outlet

or

must

through

the likelihood of

the

delivery

heater and

ducting

grilles connected

not

should

plant

room.

be

at

least

allow

and

loadings

be greater

or

plant

does

not

therefore

If

500mm

for cleaning

which

any

its air

these

the

return

placed

and

by

room the

interfere with the

the inlet

air

ducts

The

selection of materials

delivery

upon

must

be

unobstructed

ducting

than

85% recirculated air to 15%

return

be

fully

air

above

duct fire from

the and

work

spreading.

lined

directly to the

ducted

is

outside

servicing to occur. The

passes

must

system

it

during

with

return

air

and

operation to

ducted

not

represent

must

is

expected

its

normal

fire resistant

air

path

return

discharge air

of the

and

from the

to the outside,

floor

or

ground

must

be

of

fire

to

air

In

ducted

limits

stated

nuisance

pressure

static

Warm

blocked,

outlets guard located

must

rails

applications the

in section

shut-down

is too low, then

air

outlets

which

so

not

should

that

potentially

again

be

will

on

sited

be

used

8.1

of this

occur

ducted

would

so

that

to

harmful

ductwork

manual.

when

damage

applications

lead

to

warm

ensure

that

or

hazardous

must

be

designed

It

should

the

heater

can

be

an

increase in static

air can be

effected areas are

goes

caused

must

discharged

contaminated

9

so as to give a static

be

noted

out

to the fan motor.

be

such

that

on the

that

they

pressure

onto

combustible materials, if necessary,

kept

clear. Return air intakes

air can

pressure

if the static pressure is too high,

overheat

and

be

cannot

nuisance

drawn

limit

thermostat

be closed

into

within

, if the

or

become

shut-down.

must

not

the

system.

the

The

be

Fig 1

'10

2.6 Flue

system

Warning

It is

essential

heater

8.1 should advised considering

proximity preferably

requirements,

and normal

condensation they tend be released, made

be internal material

process. flue gases The

be

double

must

within

Care

Provision

The

external corrosion,

When

included

If

sleeved

The

flue

Flue

of

this

rise

that

flue requirements.

should

of at

materials

use.

designing

to inhibit the

prederably

from corrosion resistant

the flue passes

so waU is 65°C.

position

It

should

without

should

terminals

the

approved

that

of

that

have

its

own

manual.

vertically,

BS

5854; 1980,

be

taken

buildings

the

design

must

and

must

to

as to

of

the flue.

be

it is

from

be

encourage

into

through

provide a minimum

the

sleeve.

of

the flue

terminate

risk

extend

should

type,

the

products separate

The

minimum

and

the

and

to

ensure

and

other

stage. See figures 2 - 12.

made strongly which

the

a key

formation

to

the

and

be

flue

consideration.

the

a gully.

a "vall, ceiling,

The

and

in

of

their

at

least

be

fitted

and

of

combustion

flue,

number BS

5440;

that

the flue

obstacles

for

the

disconnection

advised

flue is

capable

system

of

condensates.

condensates

The

condensate

pipe

of

not

maximum

its

terminal

an

exposed

re-entering

1m

above

on

all flues

have

outlet

with

vertical

of

parts 1 and

that

constructed

of

the

less

of a

are

a flue

bends

which

where

withstanding

prevention

Twin

to

than

or

25mm

permitted

should

position

the

with a diameter

grilles

diameter

length

should

2,

terminal

will influence this

bends

must

wall

Where

flow

freely to a

pipe

25mm

roof

made

void

be

such

so

as to

property

height

on

of

all

flued to the

of

flue

be

are

used

is

not

of

the

are fitted inspection covers

be

non-combustible, resistant to

the stresses

of

the

or

insulated

condensation

from the flue to the

internal

from between

temperature

that

allow

through

any

object

of

sides

outside

not

less

than

must

not

be

kept

to a minimum.

as

consultative

situated

flue

combustible

it

200mm

giving

in a

must

for

and

formation

systems

is

point

diameter.

the

from

the exterior of

of

any

does

not

escape

windows,

within

or

a total free

of

is

less

high

be

inspection

loadings

and

are

unavoidable

"vhich

disposal

material

adjacent

impair

and

ventilation ports, etc.

3.5m of the terminal. less. The

the

building.

detailed

than

documents when

pressure

taken

entrapment

recommended

the

dissipation

in section

3m.

The

It

is

strongly

area,

into

account,

and

service

are

included.

internal

associated

traps

should

they

may

point

must

then

it has to

flue

and

combustible

the

combustion

terminal

area

of

at

of the

must

Each

flue

the

with

of as

be be

the

least

Caution

It

is

imperative

best

be

achieved

Note

It

should

not

be

considered

the

flue

has

be

not

noted

made

that

the flue

by

using

especially if

the

that

claims

provision

should

approved

made

an

approved

for possible

be

properly

method

under

method

condensation

sealed

of

roof flashing plate

warranty

11

of

sealing

where

and

problems.

it

passes

attributed

has

not

through

and

cravat.

to the ingress

been

used,

the roof, this

of

water

or

if the

design

can

may

of

lot

600

less than

[P

arapet

Not 600

less than

Fig

2.

Flat roof,

All d imen

3.

Flat roof,

A

ll

dinll'n~

with

sions

ll re in m illimetre's.

envelope

ions

a re in m illim

parapet

Not 600

-,--,--+...,----

Ie

.Less

method

etres

.

less than

--

than

10

Greater

--

h2

..

I

than

1500

Less than

Greater

than

10

1500

~I

Structure

hl

~I

Fig

4.

Flat roof,

A

5.

Flat roof,

All

ll d im

diTl1

ensi

ons

(,llsion~

where

,1r(' in m

Parapet

with

('IT

e in

millimetre

Greater than

the

il

limetre'S.

Not 600

flue

dose

s.

flue

outlet

less than

to

INot

['"

thoe

Greater than

10

hl

10

h 2

D

250

1-

is

more

than

10

heights

:1~---+-....L.I

U Less

'

---'-~

than

__

1500

parapet

(h)

_

away

from all

structures

12

-

r-I-r-

I

Not

600

less than

=--

I

Not less

250

than

Fig

Flat roof,

6.

All

7.

Flat roof,

All

dim

dimen

ens

ions

Sions tln':- in

with

,He'

in

with

no

parapet

millim~tr

es.

structure

millime

trcs.

Not less

600

close to

than

flue

outlet

Not I

600

less

than

structure

Fig 8.

Fig

9.

Pitched

All Iin

eCl

I'

dimensions

Pitched

All

dimensi

roof,

ons

arc

not

greater

are

in millimetres.

within

in millimctres.

than

l.5m

of a structure

45°

Not

Dormer window

on

roof

greater

than

45°

Not less

600

Not

600

than

less

than

13

No~

less

1000

than

I

No~

less

1000

than

Fig 10.

Fig

11.

Pitched

A

ll

lin

cnr

dimensions tlre

Pitch

roof,

Ailiin

eM

dim(,ll~ions

roof,

Not less 600

internal

arc

exceeding

in

millimctrcs.

than

route,

in

millimetn

..

's.

45°

less

pitch

than

not

0

45

exceeding

/""'-./

45°

and

ridge

Termination

termination

on

ridge

Fig 12.

Pitch

A

ll

dimens

roof,

ions

are

Not less than 1000

Dormer window

chimney

in millimetr

e's

.

within

Not

1.5m

less

from

than

600

dormer

14

window

measured

horizontally

3.0

Installation

It

is

strongly starting undertake

3.1

will be is

any

Packaging/siting

The

heater

supplied

advisable

advised

installation work. It is a

installation, commissioning,

will

separately.

that this is

Caution

It

is

strongly

reducing

heater

The

parts

(outlet nozzles,

correctly

nozzles

must

the risk of

positioned

advised

will

be

securely attached before installation

3.2 Flooring

that

usually

inadvertent

usually

be

Prior

undertaken

that

be bonnet before

the

installer

requirement

and

supplied

to installation, the

when

damage

supplied

top, etc.)

any

final

wrapped

in the area ""here

positioning

being

wrapped

supplied

assembly

reads

servicing.

Section 2

that only qualified

in

heavy

assembly

the

occasioned to

in

heavy

separately. Prior to installation the

work

can

and

Section 3 of this

gauge

heater

gauge

is

completed. The

commence.

polythene, non-as

of the

is

scheduled

the

lifting

the

heater.

polythene,

and

heater should

competent

to be sited.

eyes

are used,

with

bonnet

manual

personnel

sembled

be

non-assembled heater top

prior

may

parts

completed,

thereby

must

and

outlet

to

it

be

The

heater

weight

3.3

3.4

(a) Vertical

continuing heater positioned position

of

Minimum

The following

Model

WH

WH375

Assembly

The following

For

free

and

upon

must

be

installed

the

heater

and any

clearances

minimum

60-

301

parts

Nozzled

blowing

with secured. The nozzles to

provide completion

Models

the

installation.

clearances (in metres)

should

applications

the

desired

of commissioning.

on

ancillary

top

0.9

2.0

be

assembled

it

The

should

air

a level

equipment

I

to

will

be

bonnet

then

flow. The

non

combustible

.

must

lhs

0.9

allow

necessary

top

with

be

pushed nozzles

surface

be

observed ,."hen

rhs

0.9

installation to continue.

to

complete

nozzle

home

must

spigots

on be

capable

installing the heater.

front

0.5

2.0

the

should

the

spigots

securely

of

final

assembly

be

and

fixed in

supporting

back

1.

attached

approximately

their

the

35

2.0

before

to the

desired

Horizontal

(b)

Remove

supplied

bolts

prevailing torque nuts provided. Fit the securing brackets to each of the outlet nozzles, complete heater assembly by

fitting

Nozzled

packaging/wrapping

with

and

securing the outlet nozzles to the spigots

Models

and

secure the

the heater. Fasten the nozzle spigot plate to the

and

position on the pre-sited

90°

Duct Outlet to the outlet

15

purpose

by

way

built supports. Finish off the assembly

of the previously fitted brackets.

on

the heater using the

duct

outlet using the bolts

and

then lift the

and

3.5 Flue Installation

An

integral directly to the heater. cleaning seal caulking

to,

stage

and

between

string

see

also figs 2 - 12.

Where

(see section 2.5).

flue

spigot

servicing,

the

sections

and

grout.

condensation

is fitted to all

The

design

furthermore,

achieved

It

is

strongly

is likely to be a

of

the flue

all

through

Cabinet

of

the flue section joint sockets must face

advised

problem

3.6 Gas Installation/connection

Heaters

must

ensure

mechanical

that

BS

provision

that

5854

should

thereby

it

joints

and

can

or

through

BS

5440

be

made

allowing

be

the

disconnected

the

parts 1 and 2 are

preferably

flue to

upwards, and

use

connect

to

allow

of

approved

referred

at

the

design

for

the

Service heater. or

rigid information version

The diameter for

soundness

pipework

The

connection to

connection.

concerning

of

prEN

diameter

of

the

burner

prior

must

Threaded

the

1020

Annex

of

the

pipework

connection

to

commissioning.

terminate

the

heater

connections accepted A7.

from the cock to the

at

an

approved

can

be

made

practice in

inlet. (See section 8).

by

must

European

gas

comply

3.7 Electrical Installation/connection

The

various reference installation the heater, provide fittings the Final carried diagrams

of

an

that

appropriate

connections

out

Separate

the

product

models

should

or

connection to

and

must

isolation

are

used lEE

according

contained

user

information

are

available either for 415C

be

made

be

point

to

regulation

for

any

to lEE regulations.

within

to

the

run

within

that

make

additional

this

is

pack

the supply.

will the s. All

manual

provided

which

wiring

The conduit prevent

connection

heaters

external

The

prior

for the time control

accompanies

diagrams

electrical

to a

point

remote

between

are

supplied controls installer is

to

undertaking

or

every

cock,

and

be

way

of

either

with

countries

burner

The

50Hz

contained

supply

adjacent to the inadvertent the isolator

connection

installation

3PH

must

fused

must

be

strongly

any

unit

heater

or

and

completed

electrical work.

when

adjacent

an

approved

ISO

228/1

is

230V

later

be as specified

heater, and

activation. Cables,

and

the

pre-wired,

advised

and

the

dispatched

to

or

detailed

must

be

50Hz

in

this manual

heater

all

on

to

burner,

the

flexible coupling,

ISO 7/ 1,

in

not

be less

purged

1PH

and

be

must must

site,

consult

(see section B).

pcsition

further

the

June

than

and

supplies

prior

suitable

terminated

conduit,

conform be

earthed

and

must

the

and

forms

of

the

1995

the

tested

and

to

for

to

and

to

be

wiring

part

.

Warning

Always

isolate from the electrical

supply

before

3.8 Air Distribution Installation

The

materials ductwork moisture seams high

must

temperatures.

is

or

selected

thermally

high

humidity

be

air

tight

Adequate

must

insulated. Where

and

be

material

fastened

support

of

selection

securely

must

low

heat

ducting

be

and

commencing

capacity,

may

be insulation designed

designed

16

work

and

it

subject to

are

to

remain

into the

on

the heater.

is

preferable

deterioration

prime

layout

consideration

so,

even

of

the

that

all

from

exposure

s. Joints

when

ductwork

operating

warm

to ens

air

to

and

at

ure

that

the

integrity separate contraction. Where irrespective to

these ducting from the corrosive effect that

from

latter

is installed in concrete flooring a

soft

insulation

of

the

any

two

of

the

heater

ducting

fire

stop

points

material

seams

of

and

the

passes

requirement,

can

result

the alkaline salts

does

3.9 Warm Air Registers

In

order

distribution,

number,

size, noise levels

and

the wall is

air/ particulate

that

vertical

it is preferable to install

and

the

registers

important,

deposition

temperature

position

should

commensurate

be

particularly

is to be

joints is

ducting,

through

in

not

become

gradients

warm

set

away

on

avoided.

maintained.

to

allow

walls

to

allow

the

generation

permanent

within

compressed

are

air registers

with

the

from corners, a

high

level positions, if

The

for free

or

partitions

for

expansion

and

membrane

the concrete.

and

minimal

at

low

requirement

support

movement

sufficient

and

transmission

must

thereby

wall levels

good

unsightly

must

contraction. Failure to

be

used

Care

should

lose its effectiveness.

providing a more

of

the

seal

between

be

independent during clearance

of excess noise.

or

at

application.

staining

expansion

must

to isolate

be

taken

floor level,

the register

through

To

be left,

adhere Where

the

ducting

to

ensure

even

with

minimise

frame warm

and and

heat

the

3.10 Heater Control Installation Warning

Isolate

Models

installed. See figs

(a) (b)

(c)

(d)

(e) Time clock

(f)

All heater to

order

control unit.

The separately the

customer's

heater

On/off Ventilation/heat Manual! Thermostat

Frost

stat

of

the

can

and

WH-375

from

WH-60

switch

be

by

through

13

automatic

above re-positioned so as to offer a

fit

an

electrical

is

\-vay

specification.

mains

and

switch

controls

manufactured

of

the

before

to WH-301

14.

(summer

switch

are

panel

CP2 control

undertaking

are

manufactured

/winter

located

cover

on a removable

and

without

panel

switch)

remote

front

the

from Benson

any

electrical work.

with

facility. panel

above

However,

blanking

controls

Environmental

the

panel

following controls

which

plate

when

to facilitate this, it is necessary

to the

fitted,

these

Ltd,

heater

or

pre-wired

separated

in place

may

be

by

the installer to

from

supplied

of

and

the

17

4.0

Commissioning

Note

It

is a

requirement

the

commissioning

engineer

familiarises accompanies installation/

application. The following checks

of the heater.

the

heater,

Warning

All

Cabinet programme well

within important be

allowed

experienced

Note

It

is

strongly

accurate

does

its

than

for,

personnel

to

within

Heaters

involve

designed

might

through

recommended

+/-

that

only

suitably qualified

It

is also strongly

himself

\vith

the

heater

undergo a rigorous

pre-commissioning

operational

otherwise

the

use

equipped

0.5%

and

limits, this

be

the case. The idiosyncrasies of

of

thorough

\"'ith

that

equipment

maintained

information

itself,

should

test

and

the

correct tools

so

and

competent

recommended

contained

and

with

be carried

programme

setting

does

not

on

site

commissioning and

used

for the

that

it is

regularl

personnel

within

the

specific

out

prior

to

up

the

heater

mean

that

apparatus.

sampling

y calibrated.

that

are allowed to

prior

to

commissioning

the

information

requirements

undertake

the

pack

that

of

the

after the familiarisation process.

being

dispatched,

to

operate

on

site

each

installation

carried

and analysis

commissioning

out

whilst

efficiently

can

only

by

trained

of

flue gases is

such

and

is less

ever

and

a

Fig 13 -

Fig 14 -

Heater

Time

Control

Clock

Panel

Controls

Reset Button

Enter Switching Times

wARNING

ISOLATE MAINS BEFORE REMOVING COVER

OFF VENTILATE MANUAL

gg~

ON HEAT AUTOMATIC

Manual Switch Summer

and

Winter Time Setting

•

Enter the Hours

Input Times

Enter Weekday { s

18

Weekdays fiash

Enter minutes

4.1

Commissioning

- Pretest

Check to ensure electrical safety, and inspect and purge the gas installation, testing for soundness.

(a) Ensure that (b) Ensure

(c)

Check

(d)

Check

(e)

Ensure

(f)

Ensure

(g)

Check

(h) Ensure that the flue is secure, adequately

(i)

Check

(j)

Check and

sealed

(k)

Check fan

on overheat fan off 30°C Also check is

pushed

the

electrical

that

the

gas

that

all

panels

that

the

heater

that

warm

that

if filter assemblies are fitted

that

air inlets

that

condensate

that

there

after

that

fan

limit 100°C

that

inwards

air

is

commissioning.

and

the

to

supply

are

provision

limit

white

is

and

fasteners is installed so delivery

clear

trap

stat

60

°C

button

the

reset position. See fig 15.

is

turned

outlets

and

that

and

drain

for flue

settings

(automatic) is

turned

off.

are

that

are

gas

have

off.

secure

return

supported,

facilities

and

it is

square

open

that

they

air

sarnpling

not

been

in place.

and

that

are

paths

and

are

adequate.

disturbed

pulled

and

that

the

support

ducting

secure

are

adequate.

that the various joints are properly sealed.

and

that

outward

is

adequately

and

correctly located.

this

sample

and

are

and

as

that

is

adequate.

supported.

point

follows

the red

can

button

be

plugged

(reset)

(I)

Remove alignment,

lower

panel

and

fan rotation,

check

and

belt

motor

tension

and

(see section 5.2

Fig 15 - Fan and Limit Thermostat

fan

drive

system

and

for

integrity

figs 17

and

of

joints, check

18).

pulley

19

Fan and Motor

Assemblies

Fig 16

Fig 18

(m)

Ensure

that

the

(n) Test for electrical

(0) Turn

on

main

electrical supply, select the following switch on/off heat/ventilation manual!

The fan will

automatic

start

burner

earth

enabling

is securely continuity

attached between

to the heater. the heater, gas

on ventilation manual

fan direction etc to be verified. Reset

pipework,

settings

on/

and

off

mains

switch

supply.

to off position.

(p) Turn

motor

(q) Set

room

mains

electrical

assembly.

thermostat

supply

and

time clock to

to off, replace

on

positions.

and

20

secure

lower

loun/ed

panel

covering

fan

and

4.2

Commissioing

- Ig

Warning

Do

not

proceed

have

4.1

(a) (b) (c)

been

Ensure Ensure Select the following s\vitch settings

on/off heat/ventilation manual/

that the electrical that the

automatic

with

satisfied.

gas

commissioning

supply

nition

is

turned

off heat automatic

unless

turned

off.

on

the

all the criteria detailed

off.

heater

within

sections

4.0 and

(d) Turn (e) Select

(f)

on

Check

main

electrical supply.

'on'

position

for the following

Interval

1

2

for

<5s

<405 Pilot valve

heater

burner

Combustion fan

provides

on/

off

sequence

motor

sv,Titch.

air

initiates

opens,

spark

Operand

damper

ignition

for pilot ignition

purge

actuated,

cycle

...

transformer

burner

...

[

E I T H E R

(g)

Clear (h) Set (i)

Open

3 >40s Ignition fialure

burner

heater

gas

I

lockout

coptrol

cocks

on/

and

using

repeat

off

resulting

burner

switch

steps

reset function.

to 'off' position.

4.1

q,

in

burner

and

caused

lock-out/

4.2 c,e,f.

by

gas

starvation

shut-down

...

1

Note

It

is strongly

burner

supplied

Time intervals

Warning

If

burner reason information

or

fault

3

4

>40s <60s

recommended

with the heater as

within

ignition is

has

or

to section 6 of this

the ignition

not

been

Pilot ignition, Burner

that

part

satisfactorily

identified

manual.

OR

Burner

ignition cycle complete.

the

separate

of the information package

sequence

and

will

accomplished, rectified, if necessary

manual

vary

21

ignition

concerning the

slightly from

commissioning

...

is

studied

one

by

reference to the

operational

prior to commissioning.

model

must

not

details of the

to another.

proceed

separate

until

burner

the

5.0 Servicing

Warning

Servicing 1 year. undertake

Before allowed isolator

Caution

Certain

such

items

with

this

fall

within

fan

and

Additionally

consent

Reference

burner

Only

the safe

must

It

is a

requirement

servicing.

any

maintenance

to

cool,

respectively.

component

do

not

can

invalidate

this

category: room

motor

.

the

from Benson

should

and

timer.

approved

and

efficient

be

and

require

spare/replacement

carried

have

parts

fan

Environmental

be

running

out

that

or the

are

servicing,

any

warranty,

and

limit

made

to the

of

on a only

servicing

gas

factory

thermostat,

the

regular

suitably

and

sealed

and

basis, the

qualified

work

is

carried

electric

therefore

can

time clock , frost

and

also

supplies

are

should

lead

maximum

designed

to

stat has been factory set,

Ltd.

separate

parts

heater,

information

can be fitted, failure to

and

can also

invalidate

and

competent

out,

the

to

it

so

not

be

tampered

premature

thermostat,

and

must

covering

comply

interval

heater

turned

as to

not

the

any

warranty

between

persons

must off

at

be

tamper

with

failure.

The

sequential

be

re-set

operational

with

this

claim.

services

are

allowed

be

shut

down

the

gas

cock

proof. Usually

. Failure to

following

controller,

without

details of

can

compromise

being

to

and and

comply

parts

and

formal

the

5.1 Planned Servicing

In

order

to

planned

Quarterly

Bi-Annual

Annual

servicing

Inspection

maintain

Inspection

the

and

preventative

(a) (b)

(c)

(a) (b)

(a) (b) (c) (d)

(e)

(f)

(g)

(11)

(i)

(j)

(k)

(l)

efficient

Visual Clean Check

As Combustion

As Heat Electrical

Main fan Main Pulleys Fan belts

Gas

Burner Air Flue Report

operation

maintenance

inspection

and

check ionisation

overheat

per

quarterly

per

half

year

exchanger

connections

motor

fan

assembly

supply

delivery

of the

safety is

inspection,

check

inspection,

and

system

heater

programme

burner

probes

operational

plus

cleaning

it is

recommended

is

adopted

...

..

.

by

the user.

that

the following

24

(j)

Repeat

steps

4.2 c,a,

(k) Re-check all connections

(1)

Remove

(m)

Repeat

(n)

Check necessary refer to

Note

The

(0)

Adjust

(p)

Gradually and and

(q) Re-set

automatically time

(r)

Check

located down released. further

(i) (ii)

(iii)

steps

burner

(i)

figures

room

then

the

burner

time

clock is

fan

on

should

checks Check Check

body Check

burner

gradually

If

cover

4.2 d,e,f, pressure

separate

quoted

reduce

and

the

the time

and

in section B

thermostat

the

automatically

clock to a

re-lights once the

contained

limit heater

be

noted,

should settings that

the position

heat

integrity

and

allowing

temperature

increase

stat

electrical

interval

be

on

shield

of

and

joints for

attach

settings

to its

minimum

within

by

once the

made.

fan

unit, ensuring

manometers

the

are

burner

and

panel.

information

are

independent

highest

setting

the

temperature

re-fires .

off

minimum

section B

depressing

panel.

burner

between

These

limit

of

the

gas

soundness

to check

heater

to reach

in line

setting,

period,

fan

are

stat

unit

with

within

test figures

and

on

the

setting

checking

off

period

of

the

information

and

holding

The

time

has

shut

stop

and

as follows

are

correct, ie, fan

is correct, ie,

that neither the bi-metalic

using

burner

thermal

the

data

section

allow

room

thermostat

on the

has

in the fan

between

down

burner

equi-distant

that

an

approved

pressure

equilibrium.

as

per

B).

based

the

heater

thermostat

the

burner

elapsed.

package).

motor

the

fan

the

overload

shut

down

on

60

°C, fan off 30°

strip

leak

settings.

section 8.1 (if

upon

zero flue resistance.

to

continue

until

the

burner

until

heat

shuts

(Separate

stopping

between

nor

information

overload

and

on

the

is

greater than 3 minutes

heat

its casing is

detection

adjustment

to fire.

shuts is called for,

down,

motor

e,

and

re-set

burner

should

limit

exchanger

damaged.

fluid.

down,

then

on

the

button,

shut

lOO°e.

is

be

(s)

Undertake

data

on

the

gas

pressure,

complete

Note

reading

Note

high/ low

Note

however, manufacturers

(ii)

The

burner

of

9.3% (+ / -

(iii)

The

net

efficiency level

burner. In

(iv)

All

Cabinet

during

* Re-check all *

Adjust

*

Consult

burner

flue

gas

analysis

commissioning

burner

percentage

air

and

gas

0.1

%)

other

Heaters

data,

Benson

are

on

site

then

readings

as

per

Environmental

using

card,

head

pressure,

efficiency calculation,

pressure

and

8.7%

must

not

cases

the

test fired

commissioning

the

following action is

and

calculations.

manufacturers

approved

ie, CO, C02,

ambient

settings on

be }ower

net

and

Ltd Technical

should

WH

375 only. See also

efficiency level

pre-commissioned

the

instructions.

and

calibrated analysing

net

and

temperature,

using

the

formula

be

only

than 79% for

must

data

are

found

recommended.

Department.

gross

very

Note

heaters

not

as

part

to

flue

temperatures.

barometric

detailed

finely

(i)

above.

fitted

be

lower

of

the

be

not

equipment

Record

pressure,

in section 8.

adjusted

with a modulating

than

manufacturing

in

to achieve a C02

84%.

accordance

recording

mains

etc,

and

or

process

with

, if

the

a

22

(t)

Complete

that

fact is

serviced commissioning immediately any

subsequent

commissioning

the

manufacturer

on a regular

card

must

after the satisfactory

,varranty

card

and

recommends

basis

only

be

returned

completion

claim.

provide

by

operating

that in the interests of safety

qualified to

Benson

of

commissioning,

instructions

and

competent

Environmental

for the user, high-light the

and

efficiency the

persons.

Ltd

failure to

The

Service

do

so

completed

Department

can

invalidate

heater

(u) Set all controls to the

4.3

Commissioning

On

free blowing applications the integrity

must

be checked .

Cauti

efficiency can inefficient hea ting / ven tila tion system.

(a)

(b)

on

On

ducted

of

result

Check specification, if the volume current measured

If

the

current caused should ductwork adjusted

If

any

applications

the

heater

in

fan

motor

that

the

is as

per

at

the

drawn

by

insufficient static

be increased

as possible,

until

the

requirements

final

and

overloading

amount

that

stated

start

of the

is

greater

through

thereby

current

- air delivery system

adjustment

it is

necessary

the

air

distribution

of

fan

is too

on

the

duchvork

than

pressure

the

resulting in a

is in

accordance

of the user.

of

the fastenings

is necessary the fastenings

that

the

system

and

delivery

and

premature

produced

great

the fan

heater

introduction

to

the

data

confirm

stated

within

reduction

''\lith

component

air

volume can

be

plate. Alternatively, the static

that it is

running

the

of a

that

current, in

ductwork,

damper

in

stated

on

the bonnet top must

be secured

is

balanced

system. Failure to balance the

failure, it

is

in

overloaded.

within

in

placed as close to the

drawn

on

the

in

accordance

Ensure

the permissible tolerance.

most

which

current.

data

plate.

and

outlet nozzles

upon

completion.

order

probability this will

case

The

can

also

with

that

pressure

system

damper

to

optimise

result

the

start

should

resistance

should

the

system

in

an

heater

running

be

of

the

be

(c)

If

the

current

pressure

4.4

Commissioning

(a)

Upon information forwarded

(b)

The use

(c)

The

CD

(li) Safety features,

(iii)

(d) Section C

the

and

increase

full

and

(contact,

to Benson

commissioning

of

the

heater,

user

should

Lighting,

The

requirement demanding and

qualified persons.

'User

commissioning

Note

After

approximately

that

they are correct

drawn

is too

air

volume,

- hand over

satisfactory

date,

etc)

Environmental

engineer

detailing

be

made

shutdown,

environment -and

Instructions'

and

100

and

that

the function

aware

and

data

plate,

for

regular

hand-over.

hours

they

low

the

duct

outlet

if this is

completion

should

must

ensure

of

the

operational

and

inspection - especially if the

should

of

running,

have

not

be left

Ltd Service

that

of

all controls,

following in

information.

labelling.

the

need

be

left

the tension of the fan belts

stretched. See section 5.2 for further instructions.

grilles will

the

case

of

commissioning, a record

with

Department.

the

for

regular

with

the

overheat

the heater, a

user

is familiar

and

main

particular

servicing,

customer

require

heater

upon

opening

cut

outs

copy

with

components.

is

carried

satisfactory

must

to

reduce

can

be

caused.

of

commissioning

of

which

the safe

within a more

out

be checked to

must

and

by

competent

completion

static

also be

efficient

of

ensure

23

5.2 Servicing Procedure - Major

Flue

A visual

both

internally

covers,

ff

inspection indication flue

terminal

If a

to function correctly,

Main Fan Motor

Remove compressed remove

bearings be

lubricatd

sealed

The electrical connections

be

removed tightness, tighten,

inspection

as well as externally,

where

condensate

bearings

and

fitted,

covers

of

the cleanliness should

access panel.

air

and

heavy

should

soiling

also be cleaned away.

with

,,,,hich

by

undoing

and

ensure

replace as necessary. Replace cover

should

are

not

be checked.

trap

and

the

Dust

through

from the

the correct

are

lubricated

the

that

be

carried

be

removed

fitted

of

the flue,

drain

facility

drainage

and

the

use

motor

grade

should

screws

there

are

out

to

and

that

and

the

gas

exit

but

will also

is

fitted this

of

condensates

other

foreign

of

a soft bristle

casing.

Where

of lubricant.

during

be checked as follows. The cover to the

which

no

stray

manufacture

secure

Component

ensure

the

the flue checked to

Traces

motors

strands and

that

various

duct

enable

should

is not

matter

brush

are

Motors

it.

secure.

the flue

joints

and

flue

access for cleaning. The

be checked to

impaired.

should

and

cloth. Solvent

of

surplus

fitted

with

which

for their life .

Check

connections

which

Parts

remains

are

effectively sealed. Inspection

see

whether

spigot

be

cleaned

lubricants

grease

do

not

could

will

ensure

nipples

have

for

form a

adequately

cleaning

provide

presence

that

by

blowing

wipes

grease

may

spreading

bearings

nipples

terminal

signs

short

circuit.

supported,

is required.

not

only

of

it

continues

over

with

be

used

from

should feature

box

should

of

corrosion,

Clean,

an

the

to

the

Main Fan

Remove

a soft bristle

that

these

pro

cedure

Re

l

- Remov e collar Ch k sha

Ie

(tl Fit

Ti

(g)

(h)

Rep

(i) Turn b han d to

dust

brush.

bearings

should

move

belt(s).

en

set screw

s

ft for

d e the

the

hten

lc\ct'

bearing

eccentric collar

init ially faste

and

be followed.

ners

Pulleys

Check pulleys check for

pulleys

and

the fan motor.

any

other

for

other

foreign

Check

and

alignment

signs

that

do

not

on

eccentric collar

bearing.

in its

and

by

rotating,

and

secure.

ensure

alignment

Check

of

matter

the

bearings

require

and

straightness

seat

and

engage

and

free fan rotation.

using a straight

for excessive

wear

or

by

lubricating

and

place

on

the cams.

then

by

damage,

blowing

do

not

tap

.

the

tapping

if necessary replace the

off

with

show

signs of excessive wear.

. If

the

bearings

collar in the

shaft

with

in the direction

edge,

wear

if necessary reposition

within

compressed

opposite

the

the root

air

or

through

It

require

cam

replacing

direction to fan rotation.

facing

of

and

pulley

outwards

the fan rotation.

either

sides

of

as follows.

the

use

should

the grooves,

the

following

.

or

both

be

noted

of

the

and

(a) Release tension on belts

taper

(b) Release the

locks

and

remove.

by

slackening

the

securing

25

screws

by

several

complete

turns.

(c) Fully

jacking point.

remove

one

screw

from

the

taper

lock,

and

having

oiled

it,

insert

into

the

threaded

(d) Tighten (e) Remove taperlock (f)

Fit taperlock in

(g) Remove the

until the

(h) Align

in position.

(i)

Refit belts

screw

pulleys

until the taperlock is free.

new

screw

pulley

can

using a straight

and

check for

Fan Belts

Check belts for signs batch contains again

code. Belt

more

using a common

tension

slack

than

Note

The than

maximum

16mm

per

displacement

metre of

and

pulley.

pulley,

from the jacking point,

just be

of

batch code. Replacement

span,

and

provisionally position

moved

edge,

the

correct

wear

. Frayed

must

be

checked, and

its

accompanying

at

the

when

a force of

on

the shaft

and

amount

or

split belts

mid

by

belts,

point

and

by

gradual

of

tension .

if

then

and

of the

3kg

is

on

the shaft.

tighten

hand.

must

on

tensioning is carried

applied

both

screws in their

alternative tightening of the screws

be replaced

multi-belt

all the belts

top

edge

in a

plane

using

units

of the belt

it is

on

the

unit

out

perpendicular

clamping

belts

found

must

as follows.

must

points

clamp

with a common

that

one

belt

be replaced,

not

be

greater

to the belt. (a) Loosen fan (b) Loosen fan

(c) Slide fan

(d) Replace belts, (e) Tighten (f)

Tighten fan (g) Check belt tension, (h) Tighten

motor motor

motor

adjustment

securing

and

securing slide

tmvards

pull

clamp

fan

bolt

bolts

making

fasteners to hold fan

Heat Exchanger

The

heat

exchanger accompanied facilitate this . Access to the and

heat (a) Remove brass (b) Remove

flue

by

cleaning.

shield . Servicing

nuts

any

accumulated

brush.

requires a visual

and

bolts

on

chassis.

adjustment

fan to slacken belts.

motor

to hold motor.

ensuring

final

It

is

recommended

heat

exchanger

cleaning

cover from heat exchanger

deposits

bolt.

away

from fan until belts are tight.

that

the fan is

adjustments

should

from the tubes

as necessary.

motor

is

in position.

inspection

that a flue

gained

be

performed

square

through

end

and

the pulleys aligned.

at

least

once

per

year,

this

should

brush

assembly to expose heat exchanger tubes.

by

and

the removal

as follows.

pushing

vacuum

through

cleaning

of

the

the full length "vith a

rear

are

upper

used

panel

be

to

(c) The flue

box

(d) Particular

convection Any

(e)

with a vacuum

brush

where

deposits

should

they can

attention

heavier

then

should

deposition

which

cleaner once the

be

withdrawn

be

may

have

so as to

removed

be

paid

is likely to occur.

by

using a vacuum

to

the

accumulated

burner

is removed.

pull

upper

within

26

any

deposits

cleaner.

internal surfaces of the tubes,

the

combustion

back into the

chamber

bottom

where

can

of the flue

through

be

removed

Note

It

is

adverse (f)

The

cracks,

If

the

Benson

most

important

effect

upon

the efficiency of the

heat

exchanger

and

distortion.

condition

Environmental

of

that a build

and

combustion

the

heat

exchanger

Ltd

should

up

be

advised

of

deposits

heater

chamber

gives

is

not

allowed

and

reduce

should

cause

pending a more

the life

be

for

to

occur

of

the

heat

visually

concern ,the

inspected

detailed

as this

exchanger.

for signs

Service

examination.

Department

can

have

of

splits,

an

at

(g) All

Electrical

Terminals terminals. Electrical

Gas

corrosion, adequate Engineers

gaskets

is

an

element

All

connections

Supply

The

gas

should

of

Supply

and

connections

supply

and

to

support.

recommenda

Burner

Service

manual

requirements

prepared

by

Note

It is

most

manufacturers

important

instructions.

be

checked

doubt

must

continuity

pipework

ensure

The

the

then

be

system

tions

for

burner

that

they

checked

should

and

that

where

should

detailed

the

burner

manufacturer.

the

to

ensure

should

also

also be checked.

fittings

in UP-1

burner

that they

be replaced.

to

ensure

be

checked

should

brackets

be

soundness

and

fitted to

is

serviced

that

have

UP-2.

the

continue

they

to

ensure

be

inspected

been

tested

cabinet

regularly

to

are

secure,

that

fitted

in

accordance

heater

provide a gas

and free

no

stray

strands

to

ensure

these

are

and

that

remain

with

covered

in

accordance

tight seal, if there

from

corrosion.

are

bridging

it

is

free

from

secure

Institute

in the

and

offer

of

Gas

separate

with

the

Air

Delivery

A

visual

order,

that

inspection

it

remains

Report

A full

completed

be

run

5.3

The

inclusive. This

and

until

through

Service

heater

System

adequately

detailed

the

heater

with

the user.

should

service

has

be

undertaken

supported

report

been

re-commissioned,

Re-commissioning

must

be

re-commissioned

must

be

regarded

as a necessary

and

should

as

to

ensure

that

the

be

prepared,

follows;

part

of the

27

that

various

where

as

per

heater

the

air

joints

it is

advised

upon

section

service

delivery

are

effectively sealed.

that

the

completed

4.1

through

by

the servicing engineer.

system

the

report

to

is in

good

is

can then

section

not

4.4

-

6.0 Fault

Fig 19

Burner fails

to run

I

Diagnosis

No

1

No

Signal

Power

Demand

'---

I--

~

Check Main Check On/ Off

Isolator Switch

I

I I I

I I

I I I

Check

~

Thermostat

Check Timer

I--

Check for Overheat

I

Ch

r--

'----

,--

eck Fuses

Check for

Lockout

Check Air

Pressure Switch

I

Check Voltage

-

Check Flame

r--

Probe

Fig

20

Fan starts but

burner

goes

lockout

to

Check Control I Check Burner

-

Box

and

Burner

Ch

,-

I--

eck Gas Ensure Gas Cock

is

Supply

I

I I

I

1

I

I I

r--

Open

Air in Gas Feed

Faulty Air Pressure Switch

I

!

I

Motor

Ensure Start Gas Valve

Opens

Purge

II Check as

Burner

Air

per

manual

Check Control

Box

II

I

I--

t---

i

Ignition Failure Faulty Ignition

-

Transformer

-

Check and

HT

Lead

Connector

Faulty Electrode

'

r--

Control Box

'---

Fault

28

Check

Check Insulation

'----

Gap

Fig

21

Burner lights

on

start gas

but fails to

establish

main flame

I--

I

.--------

I--

~

Check Supply

Check Probe

Check

Gas

Flame

Controls

-

~

,-'-

I

Excess Air

Low

Gas

Pressure

Signal

Position

-- -

--

-

Check

Burner

---

-

-- --

Check Gas C02 is advised

I

Adju~t

to

Check Pressure

Check

t--

Burner Gas

Pressure

I

I I I I

~

Check Flame Switch is 'On'

SUlt

that

Flue

as

Damper

Inlet Gas

Main

Low

I--

Fig

22

Burner starts

but excess

temperature

cut out

shuts

down

burner

on

heat lockout

the

over

Check

'---

Insufficient air

~

passing Heat

I-

over

Exchanger

Check is

Resistance too

t--

high

Fan Belt

t--

Impeller

'--

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'---

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not

restricted

~

slipping

Check Acting Val

Slow

ve

Obstruction Clean

Check grilles

Check are

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Outlet are

Nozzles

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and/ or

Open

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Tighten Coupling

High (inlet) Air

-

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Faulty incorrectly

'--

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return

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and

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Limit

Check air

to Air Inlet

Reset Fan

Limit

29

for

short

Control

warm

circuit

and

Reset

Nozzles

away

from

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8.0 Technical Data

Formulae for calculating efficiency are detailed as follows;

ql

is the

heat

of the

q2

is the heat of unit

volume

Cl

is the

mean

tl

is the average combustion air

t2

is the average

Hi

is the

net

calorific value of the gas at 1013

Hs

is the gross calorific value of the gas at 1013

Vf

is the

volume

Vf

is calculated from the table below),

dry

products

the

of

water

gas

vapour

specific heat

of

contained in the

the

dry

temperature

of

dry

products

and

from the C02 content of the

of the

volume

of combustion

of C02

combustion

products

(in D

products

of combustion (in D

mbar

(V

C02)

(% of

products

of

combustion (in

C)

and 15°C,

mbar

per

unit

produced

products

x 100

where

heat

released

of combustion (% of heat released

and 15°C

volume

by

of combustion

per

unit

MJ

/ (m

volume

3

.

K)

)

of gas)

C)

dry

(in

MJ

(in

/ m

MJ

3

)

/ m')

of gas (in m')

the combustion of 1m3 of gas (see

(V

C02.

M)

per

Ref Gas

V CO2

The

net

efficiency, E (net) (in %) is given by;

where

Note

The required net efficiency

On

heaters that are fitted

the

appliance

Qrz

is the nominal heat

Qmin is

adjusted

E . ? E _

mm

the

minimum

G110

I

,I

0.26 0.32 1 0.86

must

with a modulating

to give the

10

(Qrz

minimum

rz

input

obtainable

heat

G120 G20 G25

x

100

not be less

- Qmirz)

Qrz

than 84%

or

rate,

and

in

%

high/low

input

G30

4

and

q2 = 0.077

burner

the

testing is carried

the following formula is

G31

3

H -

5 I

used

H·

I

out

with

.

En

is the

Note

The

minimum

not be less

net

efficiency

net

than 79%.

determined

by

the Notified Body

efficiency for appliances fitted

34

with

modulating

or

high/low

burners

must

VJ Ul

MODEL

I

OUTPUT

HEAT

(GROSS)

CONSUMPTION

GAS

BURNER TYPE

BURNER GAS PRESSURE

at

Zero

Flue Resistance

Burner

covcr

MINIMUM

INLET PRESSURE Ins WG

HEAD

SETTING

at

Zcro Flue Resistance

INPUT

fitted

GAS

WH60

kW/hr Btu/hr

kW/hr

Btu /

hr

m3/hr

ft

3/

hr

mbar

Ins WG 1.4

mbar

Number

60.2 85.2 119.3

205,400 290,600 407,000

76.9

262,400 374,640 518,600

7.2

255.1

ReilJo

GSI0 GSlO GS20

3.5 5.2 4.8

17

WH88 WH117

.8

109

1D

I

40

.5

'7

/

2 4 2.5

.3

364.0

Ri

ello 40

2.1

17

.5

7 7

152

14.3

503.4

f

Ri

ello 40

1.9

17.5

I

00

.

~

WH150 WH175 WH235

,

14

B.0

505,000 000,500 808,600

176.0 237.0

WH301

301.0

1027,000

WH375

375.0

1279,500

o

~

""""I

(j

.0

192.2 224.6 305.2

655,BOO

766,300 1041,300

385.9

1316,000

490.0

1671

,BOO

(j

>

18.D

636.0

Ricllo 40

GS20

21.1

I

742.0

I

Nu-Way Nu-Way

NGN9

NGN9/13

28

.6

1111.0

36.2

1.277.0

Nu-Way

NGNI3

40.0

162

3.

0

Nu-Way

NGN25

OJ

Z

t'Tj

~

>

Z

6.0 10

2.4

17.5 7 7

3.5

I

.3

4.1

17.5 17.5

- -

7.7

3.

I

7

I

12.3

0

4.9

I

17.5 7

-

7.1

2.8

17.5

7

-

CJ

t'Tj

I

Z

~

s::

-

1-1

~

-

CJ

~

rIl

AIR SHUTTER SETTING

I

cO'

at

Zero Flue Resistance

GAS

CONNECTION

AVAILABLE OUTLET

PRESSUH.E

re

adi

ng

to

be

9.3'h),

burner

air

shutt

er

setting

Number

BSP

pa

InsWG

- - -

may require a

3 6

1/2

125

0.5 0.4 0.5

djustm

ent

during

1

/2

100 125

I

--

commissioning.

3.2

3/

4

6.0

3/

4 1 1

I

l25

0.5 0.65

- -

163

--

125

0.5

-

1

200

0.8

/2

-

1

/2

1

250

1.0

\J'J

.....

::s

OQ

f'!)

-

\J'J

~

-

OQ

f'!)

I

MODEL

NOZZLE

AIR

TEMPERATURE RISE

HROUGH

T

DISCHARGE

VELOCITY

THROW

AIR DELIVERY

HEATER

(appro

(nominal)

x)

m / sec

ft /

min

m

ft

3

/ hr

m

ft

3/

min

°C

of

WH60

6.1

1200

16 60

3,694 2,175

50 90

WH88

6.1

1200

18

52

5,096 3,000

50 90

WH117 WH150 WH175

7.62

1500

21

,

70

7,992 4,720

50 90

8.8

1730

23 75

10,440

6,200

50 90

10.56 2080

27 90

11

,988

7,080

50 90

WH235 WH301 WH375

I

6.75

1300

25.3 80

16,128

9,482

50 90

8.36

1650

30

100

20,484 12,057

I

50 90

10.3

2028

45

150

30,240 17,800

50 90

o

Q

~

I-ot

n n

>

~

I-ot

Z

t'I'1

~

w

'"

SOUND

COMBUSTION

INTERNAL

FLUE RESISTANCE

GROSS FLUE TEMPERATURE

(20°C AMBIENT)

FLUE DIAMETER

ELECTRICAL

RUNNING

RATED IN

LEVEL

CHAMBER

PRESSURE

T.B.A.

SUPPLY

CURRENT

PUT

WEIGHT

-

--

I

-

Dba

mm

Min

mbar

Ma x

mbar

°C

mm

Amperes

kW

kg

Ibs

69

4

-0.2

0.6

260 295 270 305 300

150 175 175

230V

1ph

50Hz

6.0 7.2

1.1

254

558

I

----

72

4 6 6

-0.2

0.6

230V

1ph

50H

z

1.3

257 567

-

--

~

72

-0.2

0.6

415V

3ph

50Hz

3.9 4.9

1.5 2.4

362 797

74 76 78 80

-0.2

0.6

175 175 225 225 254

415V

3ph

50H

z

370 814

I

6 5 9

-0.4

1.6

415V

3ph

50H

z

7.6

2.98

436

I

960

-0.4

1.6

290 300 300

415V

I

3

ph

50H

8.5

I

4.1

630

1386

81

~

>

9

-0.4

1.6

41

5V

3ph

50H

z

I

z

11.2 14.0

5.5

646

1421

-0.4

0.6

415V

3ph

50Hz

11.0

1090 2400

Z

C)

t'I'1

I

Z

~

.....

~

......

Gj

~

fJl

CJ)

....

::1

CJCI

......

rt>

CJ)

.....

~

CJCI

rt>

9.0 Reference Information

Details of

Doc

/ Ref

prEN

1020

BS

EN 292

BS

EN

60204

BS

EN 60335

BS

EN

55014

BS

EN 50165

how

to obtain copies of the publications listed below are available from:

Standards

The

Engineer, Engineering

Department,

Benson

Title / Subject

Non

Domestic Gas Fired Forced Convection

Air Heaters For Space

I

Parts 1

and

2;

Heating

1992

...

Safety of Machinery Part

1;

1993

Safety of Part

Machinery

1; 1988

Safety of Electrical

- Electrical

Appliances

1993 Electromagnetic Compatibility

1995 Safety of Electrical

Equipment

Environmental

Ltd .

BS

BS5991

I

BS

ISO 7/ 1

ISO 228/ 1

5854

6891

715

5440

1980 Code

of Practice - Flues/ Flue Structures

1988 Installation of

Pipework

<28mm

1989 Indirect Gas Fired

Heaters

<2MW

1993

and

Fittings

of Flues

Gas

Threads

BS

5380)

Couplings

Appliances

Metal Flue Pipes Part

1;

1990

Specification/Installation

Part

2;

1989

Ventilation (See also

I

Specification for Metric Pipe

(See also

Threads

Pipe

Requirements

BS

21)

BS

2779

Seals

P

/l

T / _

(Replaces

IM

/ 5

and

IM/16)

Installation of Gas Appliances (Replaces

IM / 7)

Installation of Gas Appliances

37

9.1 Parts Listing

Part/Description

Heat

exchanger assy Fan hood assy Fan Base frame weld assy Frame assy Frame ass)' Diaphragm

Side panel

Heat Heat Heat shield front panel Heat Front Back Electrical back plate Blanking piece back Blanking piece back

Stack box cover assy

Fan

and

Fan

and Sight glass Sight glass Sight glass

Heat Front top pnl Front top pnl (H-DH2) 20-45-066 Front top pnl (H-DH2) Motorised fan - 1

Motorised fan - 3 Overload Overload Overload

Overload

plate

shield

side

pan

el

shield deflector

shield back panel

bottom

limit limit

pan

el Front

panel

stat stat

gasket Fan

holder

exchanger cover plate 20-30-207 Heat exc

(V,

H-DHl,

phase phase

- 1

pha

se

- 3

pha

se

- 1

phase

- 3

phase

60/88

Notes Part/Description

20-45-047 Heat exchanger ass)' 20-46-108 20-45-048 20-45-055 Base frame weld assy 20-46-099 20-45-057 20-46-055 20-45-051 20-45-060 Side panel 20-46-102 20-45-063 Heat shield side panel 20-45-061 Heat shield deflector 20-46-110 20-45-062 Heat shield front panel 20-46-061 20-45-075 Heat shield back panel 20-46-062 20-45-076 20-46-075 20-45-074 Back 20-45-077 Electrical back plate 20-45-080 20-48-085

I

20-45-094 Stack box cover assy 28-60-021 Fan 20-33-549 20-33-549 20-30-061 20-30-061 20-30-151 Sight glass

R)

20-45-073

Honly

28-09-002 Motor - 1 20-32-042 Motor - 3 28-11-056 28-11-066 28-65-093 28-11-055 V - belt

WH

60on)y VVH600n) WH8

28-11-053 WH880n)y 28-11-054 Contactor 28-11-057 Overload - 3 Digital time clock 28-15-030 Contactor - 1

Thermostat

room/frost Rocker switch - red neon Motor -3 Rocker switch -

dual

Rocker switch Driven pulley

28-16-031 28-40-072 28-40-073

28-40-074 28-65-092 12-way terminal block A 20-09-136 V - belt - 1 Fuse

holder Fuse - 1 Fuse - 3

6-way

phase phase

terminal block 28-03-007 Contactor - 1 Stackbox assy Stackbox assy

28-07-050 V - belt - 3 28-07-049 Overload - 1 28-07-048

31-24-074 31-27-123

WH66 WH88

Access plate 20-30-225

Stack box gasket

Fan air restrictor

weld

Top

Nozzle

Duct On/off Manual-

assy (nozzled) 20-45-072

assy 31-30-167

spigot

assy

burner

gas 20-45-056 Fuse - 3

& gas train Fuse - 1

31-27-121 Rocker switch - red neon 31-30-016 Rocker switch -

TBA TBA

20-45-071 29-99-446

I

hood

ass)' 20-46-048

Diaphragm

and and

bottom

limit limit

plate

panel

stat stat

holder

hanger

pnl

Front top

(V,

phase phase

Drive pulley

y

8 o

n)

)'

Driven

Overload - 1

pulley

phase phase

and 3 phase

Motor - 1

phase phase

Drive pulley

phase phase

phase

Overload - 3

phase

only Contactor - 3 pha se onll' Digital time

Therm

dock

ostat room/ frost

Rocker switch 12-way terminal block Fuse

holder

phase

pha

se

gasket

cover plate

H-DH1,

dual

6-way terminal block

!

Stackbox assy

Access pia

te Stackbox gasket Top weld assy (nozzled)

Nozzle assy Duct spigot assy

On/

off

burner

I

Manual-

& gas train

gas

117/150

20-46-104

20-46-107

20-46-087 20-46-077

20-45-094 28-60-021

20-30-151 20-31-036

R)

20-46-101 20-46-145

28-10-009 28-10-008 28-65-065 WH1l 7 o

09-16-116

28-11-053 WH1170niv

28-11-057 WHl170niv

28-10-016 28-10-015 WH1500n)y

28-65-063 WH1500nly

09-16-110 09-16-116 28-11-089

28-11-056

28-11-088

28-11-057

28-15-030

28-16-031 28-40-072 28-40-073 28-40-074

A 20-09-136

28-07-050

28-07-049 28-07-048 28-03-007 31-27-123 20-30-225 31-27-121 20-46-116 31-30-159 20-46-113 29-99-448 20-45-056

v = Vertical H = Horizontal R = Reverse flow (Common, unless otherwise indicated)

Notes

H only WH11

7 only

WH11

7 on

nly

WH11

7 only

WH117

only

WH11

7 only

WH1500n)y

WH1S00nly WH1

S0o

nly

WH1

S00nly

WH1

500

nly

WH1

500nly

WHlS00

nl

I WHlSOonly

TB

A

TBA

ly

y

38

P art/Descri p tion 175

Notes

Part/Description

235/301

Notes

Heat

exchanger

hood

Fan Base frame Frame

assy

Diaphragm

panel

Side

Heat shield

assy

weld

plate

side

assy

panel

Heat shield deflector

Heat

shield front panel

Heat

shield back Front Back Back

bottom

top

panel

panel Electrical back plate Blanking piece back

cover

Stack box

and

Fan Fan

and

limit limit

assy stat stat

Sight glass Sight glass Heat Front Front top

Motor - 3

holder

exchanger

top

pnl

(Y,

pnl

(H-DH2)

phase

cover plate

H-DH1,

only

Fan

pulley

Drive

Driven

pulley

V - belt Overload Contactor

- 3

phase

phase Digital time clock Thermostat Rocker Rocker Rocker

room/

switch

- red neon

switch -dual

switch 12-\,,,ay terminal block Fuse

holder

Fuse -3

phase 6-way terminal block Stackbox assy

Access plate

Stack box

gasket

Top weld assy (nozzled)

Nozzle assy

Duct

spigot

assy

On

/ off

burner & gas Hila Manual

i

I

burner

& gas train

- gas

assy

panel

gasket

frost

train

20-46-051 20-46-048 20-46-049 20-46-055 20-46-057 20-46-056 20-46-060 20-46-082 20-46-06'1 20-46-062 20-46-075 20-46-087 20-46-088 20-46-077 20-48-085 20-45-094 28-60-021 20-33-549 20-30-061 20-30-151 20-31-036

R)

20-46-073 20-46-0<)8 28-10-026 20-09-003 28-65-061 28-65-092 09-16-116 28-11-055 28-11-057 28-15-030 28-16-031 28-40-072 28-40-073 28-40-074

A 20-09-136

28-07-050 28-07-048 28-03-007 31-27-123 20-30-225

I

31-27-121 20-46-072

31-30-159

20-46-071 2<)-99-437 29-99-441

20-45-056

I

Honlv

WO;vfB15

TBA TBA

Cabinet

casing assy

Cabinet casing assy

lower

Front Rear

lower

louvred

louvred Side lower louvred panel Burner gasket Electrical back plate

I

Overload Contractor

Fan

and

limit

Fan

and

limit Base frame Base frame Diaphragm

Outlet

frame

sub sub

panel

weld

Front panel

panel

Front

heat shield Sight glass Sight glass

holder Base frame weld assy Fan

assembly

Motor

mounting

Motor

(5.5Hp 415V 3ph)

Motor

(7.5Hp 415V 3ph)

pulley -85mm

Drive

S

Drive

pullc-y -

Taper

bush -28111111

Taper

bush -38mm Driven pulley Driven pulley -

TLlper

bush

(fan)

Taper

bush

(fan)

Motor

adjusting Swivel bolt Side panel Side

heat

shield

exchanger

Heal Heat exchanger cover plate Rear

panel

Rear heat shield Gas exit Gas exit Cover Cover

duct

duct plate plate

gasket

Digital time clock

Thermostat

room/

Rocker switch - red neon

Rocker switch -

Rocker

svvitch

12-\,vay terminal block

holder

Fuse Fuse 6A Duct

spigot

weld Bonnet ,veld assy No

zzle ass)' Hila Hila

On/ On/

burner

burner off off

& gas train & gas train

burner

Manual

pimel

panel

stat

200mm

stat

gasket assy assy

assy

plate

x 3

90mm

x 4

180111m 180111111

screw

weld

cover

assy

weld assy

frost

dual

ass)'

& gas train & gas train

x 3 x 4

ass)'

20-47-051 20-47-052 20-47-021 20-47-022 20-47-039 20-47-066 31-29-026 28-11-111 28-11-057 28-60-023 20-33-549 20-47-045 20-47-050 20-47-009 20-47-010 20-47-036 20-47-037

,

20-30-061 20-30-151 20-47-008 28-09-043 20-47-034 28-10-026 28-10-021 28-65-042 28-65-073 28-66-028 28-66-038 28-65-049 28-65-054 28-66-136 28-66-137 20-33-022 20-27-048 20-47-017 20-47-018 20-47-030 20-33-039 20-47-014 20-47-015 20-47-065

20-27-048 3\-29-045 31-29-044

28-15-030

28-16-031

28-40-072

28-40-073 28-40-074

A 20-09-136

28-07-050

28-07-048

20-47-027

20-47-024 31-30-157

29-99-443

29-99-442

29-99-439 29-99-438 20-45-056

WH2

3Sonly

WH3010nly

WH2

3Son WH3010nly WH235 WH3010nly WH235 WH

3010nly

WH2

35 only WH301 0nl WH235 WH3010nly

I

WH301 only WH2

35 o WH301 0nl

WH235

onl

only

nly

only

I

ly

y

I

y

v = Vertical H =

Horizontal

R = Reverse flow

(Common,

39

unless

otherwise

indicated)

Part/Description

375

Notes

Main

frame assy

panel

heat

end end

panel

shield

heat panel heat

shield

Main frame Rear Top rear Bottom rear

I

Burner Burner Fan frame assy Fan frame panel Fan frame

panel

Side Side

panel

End

panel

End

panel

End

panel

End

panel

Motor

access panel

Motor

mounting

Motor

mounting

Fan

unit

assy

panel

motor motor

Impellor Fan

shaft Fan foot RH Fan foot LH Heat

exchanger

Gas

exit

duct

Gas

exit

duct

Gas

exit

duct Explosion relief Outlet

assy

Outlet

assy

Outlet

assy (nozzled)

Outlet

assy (ducted)

assy assy assy assy

door (nozzled) (nozzled)

Top plate Nozzle Nozzle

hood

hood Electrical assy (nozzled) Electrical assy Fan

drive

Fan

drive

Motor

(nozzled)

Motor

(ducted)

Drive

pulley pulley

Drive Driven Driven Taper

lock

Taper

lock

Taper

lock

Taper

lock

(3

V-belt

(ducted) assy (nozzled) assy (ducted)

(nozzled) (ducted)

pulley

(nozzled)

pulley

(nozzled)

bush-drive bush-drive bush-driven bush-driven (ducted)

off

per

heater)

Penn control

burner & gas

Hilo On/off Manual-

burner & gas

gas

assy

shield

assy

end end

frame RH frame LH

(nozzled) (ducted)

(nozzled)

train

20-27-074 20-27-075 20-27-013 20-27-011 20-27-010 20-27-012 20-27-009 20-27-305 20-27-085 20-27-124 20-27-057 20-27-120 20-27-080 20-27-118 20-27-079 20-27-119 20-27-078 20-27-318 20-27-319 20-27-316 20-27-317 20-27-312 20-27-321 20-27-322 20-27-073 20-27-090

I

20-27-092 20-27-091 20-27-020 20-27-094 20-27-148 20-27-138 20-27-028 20-27-035

20-27-034

20-27-036 20-27-621 20-27-622 20-27-526 20-27-527 28-10-024

28-10-025

28-65-047 28-65-053 28-65-049

28-65-054

28-66-013

28-66-042 28-66-013 28-66-019

09-16-126

28-60-012

29-99-444

29-99-440 20-45-056

Vo

nl

Hand

Vonly

Hand

Vonly

Hand

Vonly

Hand

Vonly

Hanly

Rani),

Vonly Honlv Ronly

Vonly Hand

y

R

v = Vertical H =

I

Horizontal

R = Reverse flow

(Common,

40

unless

otherwise

indicated)

BENSON

-

OLYMPIC

FIRED CABINET HEATER

Section

BASIC USER

RANGE

INSTRUCTIONS

GAS

C

10.0 Introduction

The

following range manufactured

having requirements

manufactured

AU

Benson

been

Electromagnetic

informatio

by

\vithin

of

Low

a strictly Environmental independently

the following

Gas

Appliance

Machinery

Voltage Directive

Compatibility

Product

Benson

Liability Directive

n is

relevant

controlled

Ltd

gas

tested

European

Directive

to the

Olympic

Environmental

quality

fired

and

Directives.

(73/23/EEC & 93/68/EEC)

Directive

system Cabinet found

(90/396/EEC)

(89/392/EEC)

(89/336/EEC & 91/31/EEC)

(65/374/EEC)

Ltd.

to ISO

Heaters

to

satisfy

WH

These

Cabinet

heaters

900l.

are

CE

the

Heater

are

marked,

essential

Benson customers the

owner,

to

ensure suitably In

addition

lise

of

Contained

are

used

Caution is

lead component

Warning is

lead being

10.1

Environmental with a comprehensive user,

or

hirer, of

that

operators

instructed

to this,

the

product.

with

to

highlight

used

to a

premature

parts.

used

not

only

to

component

created

where

Commissioning

Warning

As

part

of

the

commissioning

go

through

(i)

(ij) Safety features,

(iij)

the

Lighting,

The

requirement

a

more

carried

out

following

shutdown,

demanding

by

Ltd

support

such

are

provided

regarding

operators

the

certain

when

failure

when

there is a risk of

the

must

text

of

this

points.

failure to follow

or

failure to

damage,

and

with

the

and

data

plate,

for

regular environment -and

competent

all

new

information

products

purpose

damage being

with

also be

manual,

heed but personal

supplied

the of

suitably

the

or

can

hand

programme,

operator.

operational

and

inspection

and

qualified

information.

labelling.

products

pack,

operator

the

manual

words

implement

occasioned

implement

also lead to a haz

injury

being

and

it is

by Benson

manual,

and

adequately

'Caution'

the

the instruction(s)

or

death.

over

the

commissioning

- especially if the

need

for

engineers.

supplie

the

Environmental

and

safety instructions.

instruction(s)

to the

ardous

the

regular

d to

their

responsibility

that

they

trained

and

heater

engineer

heater

in the

'Warning'

or

situation

must

is

within

servicing,

Ltd

can

of

are

its

Caution

After

approximately

be

checked strongly the

operator

to

ensure

advised

.

that

10.2 Servicing

Warning

Servicing between and

competent

Benson detailed is

adopted

Environmental

must

services

being

persons

Environmental

in section

by

5.1

the user.

Ltd

100

hours

that

it is correct,

this is

undertaken

be

carried

one

are

out

year.

It

allowed

Ltd

advise

of the Installation,

Further

or

from the

commissioning

of

runnjng,

and

that

by

the

on a regular is a

requirement

to

undertake

that

Commissioning

details

are

the

tension

the belts

have

commissioning

basis, the

that

only

the

servicing.

the

planned

and

available from

engineer.

on

the fan belts not

stretched.

engineer,

maximum

suitably

service

Servicing

either

must

and

interval

qualified

schedule

Manual

Benson

It

not

is

as

10.3 Start

(a)

Ensure turned

that

on

up

proceedure

the

(b) Set time clock to (c)

Set

room

thermostat

heat

/ve

(d) Set (e) Set

(f)

Set

(g)

Check

I

#

1

2

3

4

manual/automatic

on/

ntilation

off

switch

for the following

interval

<5s

<40s

40

5

>

<60s

Note

The time mod

els.

intervals

gas

cocks are

an

'on'

to

demand

switch

to

'on'

Combustion initiates

,

Pilot valve for pilot ignition

Pilot ignition . . . Burner ignition

Burner

\·vithin

open, and

period

to

burner

purge

ignitio/1

the

ignition

hea t

'heat'

to

'automatic

sequence

air

damp

cycle

open

s, ignition

... and

... star!

that

the

'

operand

er

actuated,

..

.

tran

...

cycle

comple

sequence

mains

sformer

--

may

burner

te.

vary

electrical

fan

motor

provides

slightly

supply

spark

between

is

(h)

The

burner

will

continue

to fire until heat

is

no

longer

demanded.

10.4 Stop procedure

(a) Set (b)

The

limit

on/

off switch to 'off' position.

fan

motor

will

continue

stat

to

shut

down

the fan.

Caution

Do

not

use

the

main

electrical isolator to damage the warranty.

10.5

(a) Follow

10.6 Ventilation

(a) Set (b) Set

to the heat

Shut

steps

and

shut

heat/ventilate on/off

exchanger

down

10.5 (a)

gas cocks .

switch

to

and

procedure

and

(b),

only

switch

to 'ventilate'.

'on'.

10.7 Lockout situations

If

either

the

be cleared

Caution

Repeated

determined

burner

manually

or

by

a qualified

or

the fan

before the ignition

frequent

lockouts

and

competent

to

run

until

combustion

when

fan

and

limit

sequence

must

heat

dissipation

turn

off the heater, to

chamber,

stops

turn

stat

go

can

be

investigated

engineer

.

allows the fan

do

so

can

and

thereby

main

electrical isolator off,

to lockout, the lockout

be

re-initiated.

and

invalidate

their

and

cause

must

cause

Warning

If a gas

extinguished, opened informed N

ever

leak

gas

to allow the

immediately.

search

for

is

supply

gas

leaks

suspected,

cocks closed to isolate the leak,

dissipation

all

with a naked

10.8 Contact information

Further

information

BENSON

is available from

ENVIRONMENTAL LIMITED

LUDLOW ROAD, KNIGHTON, POWYS LD7 1LP Telephone: 01547 528534 Facsimile: 01547 520399

potential

of

the

;-

sources

gas to occur,

flame.

of

doors

and

ignition

and

the

gas

must

be

windows

supplier

BENSO N ENVIRONMENTAL LIMITED

LUDLOW ROAD, KNIGHTON, POWYS LD7 1LP

Telephone: 01547 528534 Facsimile: 01547 520399