BENSON VRC-3 100-3, Installation, Service And User Instructions Manual

1704VRC3-AMEN, p 16/35 

               

GENERAL

 

REQUIREMENTS

 

 

3.1

 

Related

 

documents

 

 

It

 

is

 

important

 

that

 

all

 

gas

 

appliances

 

are

 

installed

 

in

 

accordance

 

with

 

the

 

rules

 

in

 

force

 

and

 

by

 

appropriately

 

qualified

 

persons.

 

Failure

 

to

 

install

 

appliances

 

correctly

 

could

 

lead

 

to

 

prosecution.

 

It

 

is

 

in

 

your

 

own

 

interest

 

and

 

that

 

of

 

safety

 

to

 

ensure

 

compliance

 

with

 

the

 

law.

 

 

Air

 

heaters

 

should

 

not

 

be

 

installed

 

in

 

corrosive

 

atmospheres,

 

i.e.

 

near

 

plating

 

or

 

degreasing

 

plants

 

or

 

in

 

areas

 

where

 

there

 

is

 

a

 

fire

 

risk.

 

Do

 

not

 

locate

 

the

 

air

 

heater

 

where

 

it

 

may

 

be

 

exposed

 

to

 

water

 

spray,

 

rain,

 

etc.

 

 

3.2

 

Heater

 

location

 

 

The

 

location

 

chosen

 

for

 

the

 

air

 

heater

 

must

 

permit

 

the

 

provision

 

of

 

a

 

satisfactory

 

flue

 

system

 

venting

 

to

 

outdoor

 

atmosphere

 

and

 

adequately

 

ventilated

 

to

 

provide

 

for

 

combustion

 

air.

 

The

 

location

 

must

 

also

 

provide

 

sufficient

 

space

 

to

 

allow

 

the

 

heater

 

to

 

be

 

serviced.

 

 

Table

 

3

 

Minimum

 

installation

 

clearances

 

(mm)

Table

 

4 Recommended mounting

 

heights

  

(m)

 

(*)

 

 
 
 
 
 
 
 

*

 

Measure

 

rear

 

clearance

 

from

 

the

 

back

  

of

 

the

 

motor

 

 

 
 
 

*

 

Height

 

from

 

floor

 

to

 

bottom

 

surface

 

of

 

heater.

   

These

 

are

 

recommendations

 

only.

   

Positioning

 

of

 

heaters

 

depends

 

on

 

application.

 

 

Air

 

heaters

 

should,

 

where

 

ever

 

possible

 

always

 

be

 

installed

 

to

 

blow

 

toward

 

or

 

along

 

external

 

wall

 

surfaces.

 

Where

 

two

 

or

 

more

 

air

 

heaters

 

are

 

installed

 

in

 

the

 

same

 

room,

 

a

 

general

 

scheme

 

to

 

ensure

 

continuous

 

air

 

circulation

 

should

 

be

 

maintained

 

for

 

best

 

results.

 

Suspended

 

heaters

 

are

 

most

 

effective

 

when

 

located

 

as

 

close

 

to

 

the

 

occupancy

 

zone

 

as

 

possible,

 

this

 

fact

 

should

 

be

 

born

 

in

 

mind

 

when

 

determining

 

the

 

mounting

 

heights

 

to

 

be

 

used.

 

Care

 

should

 

be

 

exercised

 

to

 

avoid

 

directing

 

warm

 

air

 

directly

 

onto

 

the

 

occupants.

 

Partitions,

 

columns,

 

counters,

 

storage

 

racking,

 

etc.

 

should

 

be

 

taken

 

into

 

account

 

when

 

choosing

 

the

 

location

 

so

 

that

 

an

 

unobstructed

 

path

 

for

 

the

 

air

 

circulation

 

can

 

be

 

maintained.

 

Where

 

air

 

heaters

 

are

 

located

 

in

 

the

 

centre

 

of

 

the

 

space

 

to

 

be

 

heated,

 

the

 

air

 

should

 

be

 

discharged

 

toward

 

outside

 

walls.

 

In

 

large

 

areas,

 

they

 

should

 

be

 

located

 

to

 

discharge

 

air

 

along

 

outside

 

walls

 

with

 

additional

 

heaters

 

provided

 

to

 

blow

 

air

 

into

 

the

 

centre

 

of

 

the

 

area.

 

In

 

places

 

where

 

infiltration

 

of

 

cold

 

is

 

excessive,

 

such

 

as

 

entrance

 

doors

 

it

 

is

 

desirable

 

to

 

locate

 

a

 

heater

 

so

 

that

 

warm

 

air

 

is

 

discharged

 

directly

 

toward

 

the

 

source

 

of

 

cold

 

air

 

from

 

a

 

distance

 

of

 

4,5

 ‐ 

6,0

 

metres.

 

 

3.3

 

Combustion

 

air

 

supply

 

&

 

flue

 

system

 

 

The

 

air

 

heater

 

may

 

be

 

installed

 

as

 

a

 

balanced

 

flue

 

(Type

 

C)

 

heater

 

requiring

 

both

 

a

 

combustion

 

air

 

inlet

 

duct

 

and

 

a

 

flue

 

pipe

 

or

 

as

 

a

 

power

 

vented

 

(Type

 

B)

 

heater,

 

which

 

requires

 

only

 

a

 

flue

 

pipe

 

exhausting

 

to

 

outdoors.

 

All

 

products

 

of

 

combustion

 

must

 

be

 

flued

 

to

 

outdoor

 

atmosphere.

  

Each

 

heater

 

installed

 

as

 

a

 

type

 

B

 

appliance

 

must

 

be

 

fitted

 

with

 

an

 

individual

 

flue

 

pipe

 

and

 

the

 

combustion

 

air

 

inlet

 

opening

 

must

 

be

 

provided

 

with

 

a

 

protection

 

grill

 

(ask

 

your

 

distributor

 

for

 

the

 

appropriate

 

protection

 

grill

   

(IP20)

 

(dia130

 

=

 

PN

 

02

 

25094

 

).

 

Each

 

heater

 

installed

 

as

 

a

 

type

 

C

 

appliance

 

must

 

be

 

fitted

 

with

 

an

 

individual

 

combustion

 

air/flue

 

pipe

 

system.

 

Only

 

systems

 

specified

 

by

 

the

 

air

 

heater

 

manufacturer

 

may

 

be

 

used.

 

Common

 

flue

 

and

 

combustion

 

air

 

systems

 

must

 

not

 

be

 

used!

 

Figure

 

2a

 

:

 

Combustion

 

air

 

and

 

flue

 

pipe

 

sockets

 

1

 

Flue

 

outlet

 

socket

 

2

 

Combustion

 

air

 

inlet

 

opening

  

3

 

Gas

 

connection

 

inlet

 

with

 

sealing

 

ring

 

4

 

Electrical

 

connections

 

 

3 

VRC-3

20

30



45

others

Mounting height

3

4

5

VRC-3

100

Top

150

Flue connector

150

Access panel

500

Non access sid

150

Bottom

150

Rear*

250