Primaf 30f User guide

Supplied By www.heating spares.co Tel. 0161 620 6677

·

·~

~

POTTERTON

30F, 40F, 50F, 60F,

80F

& 1

OOF

fanned

balanced

flue

gas

fired

boilers

THIS APPUANCE

IS

FOR

USE WITH NATURAL

GAS

(G20)

ONLY

'

-

Installation

and

Servicing

Instructions

LEAVE THESE INSTRUCTIONS

ADJACENT

TO THE

GAS

METER.

Supplied By www.heating spares.co Tel. 0161 620 6677

CE

SAFETY, PERFORMANCE &QUALITY

Prima F boilers have been assessed

by

a Government appointed Notified Body and

shown

to

meet the

'Essential Requirements'

of

the European

Gas

Appliance Directive.

The Directive lays

down

requirements for the safety and efficiency of the appliance, togetherwith its design,

construction, and use of materials. It also requires

the

production process to

be

covered

by

an approved

and monitored system of quality assurance.

The BSI kitemark remains

on

the product. demonstrating continued conformity with

the

relevant BSI safety,

performance andquality (BS.5750) standards.

POTTERTON

PRIMA

30F G.C.

No.

41.607.01

POTTERTON

PRIMA

40F

G.C.

No.

41.607.02

POTTERTON

PRIMA

SOF

G.C.

No.

41.607.03

General

Optional Extras

Accessories

Installation Data

CONTENTS

Boiler Dimensions

Site Requirements

Technical Data

Installation Instructions

Commissioning

Health and Safety Information

Control Systems, Pipework and

Wiring Guide

User's Instructions

Page No. 2

Page No. 3

Page No. 6

Page No. 11

Page No.

18

Back Page

Supplied in

Literature Pack

POTTERTON

PRIMA

60F

G.C.

No.

41.607.04

POTTERTON

PRIMA

80F

G.C.

No.

41.607.32

POTTERTON

PRIMA

100F

G.C.

No.

41.607.33

IMPORTANT

The appliance

must

be

installed

and

serviced

by

a

competent

person

as

stated

in

the

Gas

Safety

(Installation and Use) Regulations 1984.

Prima F boilers (formerly

known

as 'Profile Prima')

are certified

by

BSI

for

safety. it is therefore important

that no external control devices (e.g. flue dampers,

economisers,

etc.)

be

directly

connected

to

these

appliances

unless

covered

by

these

installation

instructions

or

otherwise

recommended

in

writing.

Any

direct

connection

of

a

control

device

not

approved

by

Potterton

could

invalidate

the

BSI

certificate and

the

normal warranty.

GENERAL

Prima F boilers are fully automatically controlled, wall

mounted.

fan

powered,

balanced

flue

appliances,

using a cast iron heat exchanger and are available in

six

outputs

ranging

from

5.86-29.3

kW

(20,000-

100,000 Btulh).

The boilers which are designed

to

provide domestic

hot

water

and/or

central

heating

must

be

used

on

INDIRECT FULLy PUMPED systems only, which may

be sealed

or

open vented.

The boilers can

be

supplied with either of the following

types of flue system:

Standard

horizontal

flue

system

which

is

suitable

for a wall thickness of 100mm{4in) to 510 (20in).

PRIMA 100F MODELONLY

1

metre

horizontal

flue

system

which

provides

a

maximum flue lengthof955mm (37in).

Vertical

Flue

system

which allows

the

flue

to

pass

through a flat roof and terminate at a maximum height

of980mm (38in) measured from the top

of

boilercase.

PRIMA 30F, 40F, 50F, 60F & 80F Modelsonly

2

metre

horizontal

flue

system

which

provides

a

maximum flue length

of

1955mm(77in).

Vertical

flue

system

which allows

the

flue

to

pass

through a flat roof and terminate

at

a maximum height

of 1980mm(78in) measuredfromthetopof boilercase.

OPTIONAL EXTRAS

The following are kits available as optional

extras:-

lnternal Fitment Kit, which is suitable for a maximum

wall thickness of 510mm (20 in.) is

to

be used where

access

to

the outside wall is impracticable.

Pump

Cover

Kits

located

on

top

of

the

boiler

and

designed

to

conceal the pump, and/or any motorised

valves installed above the boiler.

(Note:

Pump cannot

be fitted above

the

boiler

if

the

vertical

flue

kit

is

used).

Terminal

wan

Plate, where necessary can

be

fitted

to the outside wall face to improve the appearance.

after making good around the terminal. 2

Terminal

Guard,

to

be

used

when

the

terminal

is

fitted less

than

2m

above a balcony, above ground

or

above a flat roof

to

which people have access.

45°

and

90°

Flue

Bend

Kits,

giving greater flueing

flexibility (Prima

30F

to 60F only).

Vertex

Flue

Kit,

giving

greater

vertical

flueing

flexibility

through

a roof

space

(Prima

30F

to

60F

only).

Full fitting instructions are provided with each kit.

SEE PAGE

10

FOR PART Nos. OF FLUE KITS AND

OPTIONS.

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ACCESSORIES

The following Potterton Myson controls are

recommended

for

use with your boiler:-

Electronic Programmer EP2001,

EP300i.

or

EP6000

Cylinder Thermostat PTT2

or

PTI100

Room Thermostat PRT2

or

PRT100

Frost Thermostat PRT100 FR

Motorised Zone Valve MSV222

or

MSV228

Motorised Diverter Valve MSV322

Thermostatic Radiator Valve

Data Sheets describing these products are available

on

request.

INSTALLATION

DATA

The installation

of

the boiler must be

in

accordance

with

the

latest

relevant

requirements

of

the

Gas

Safety

{Installation and

Use)

Regulations, local

building regulations, IEE Wiring Regulations and the

Byelaws

of

the

Local WaterUndertaking.

Detailed recommendations are

contained

in the

following British Standards and Codes of Practice.

BS6798, BS5440 Part1

BS5440 Part 2 BS5449 Part1

BS5546 BS4814. BS6891.

BUILDING REGULATIONS.

MODEL WATER BYELAWS.

BRITISH

GAS

PUBLICATION DM2.

GAS

SAFETY

(INSTALLATION

AND

USE)

REGULATIONS.

BUILDING STANDARDS (SCOTLAND)

REGULATIONS.

BOILER

DIMENSIONS

srr

FIG. 1

Boiler

30F

40F

50F

Dimension 'A' 350 350 350

(mm)

'B'

110 110

110

'C'

103

'D'

87 87 87

Flow/Retum

22mm

Connections Copper Copper Copper

RETURN

60F

80F

100F

3SO

425

110

150 150

103

143

107

107 107

22mm

28mm

Copper

srr

·so

(60)

600

I

100

I

*30

(40)

•NOTE:

IF

PIPEWORK

IS

TO BE RUN DOWN

THE

BACK OF

1HE

BOltER

THE

NORMALCLEARANCE OF

25mm

BElWEENTHE REAR OFTHE BOILER

ANDWALLCANBEINCREASEOT035mmlFDESIREDBYIN\/ERTINGTHE

BOILER MOUNTING PLATE DURING INSTAUATlON

(Dimensions in

brackets

apply

when the mounting plate

is

inverted).

SITE

REQUIREMENTS

These boilers are not suitable for external installation

and should not

be

fitted directly above a cooking

appliance. The boiler may

be

installed in any room,

although particular attention is drawn

to

the require-

ments of

the

current

l.E.E.

Wiring Regulations and

in

Scotland, the electrical provisions of the Building

Standards applicable in Scotland with respect to

the

3

installation

of

the appliance in a room containing abath

or

shower.

Where a room-sealed appliance is installed in a room

containing a bath or shower, any electrical switch or

appliancecontrol,utilisingmainselectricityshould

be

so

situated that itcannot

be

touched

by

aperson using the

bath or shower.

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CONTROL

THERMOSTAT

PUMP OVER-RUN

THERMOSTAT

CAPILLARY

RETAINING CLIP

BOILER DRAIN

CAP

ELECTRODE~

PILOT

GAS

COCK

FLOW

PIPE RETURN PIPE

~

GAS

CONTROL

VALVE

BURNER

PRESSURE

TEST

POINT

/

\

OVERHEAT

THERMOSTAT

FIG.

2

GENERAL

ARRANGEMENT

4

FLUE

ELBOW

FAN

SUPPLY

LEADS

CONNECTOR

FAN

FLUE

HOOD

HEAT

EXCHANGER

OVERHEAT

THERMOSTAT

POCKET

COMBUSTION

CHAMBER

AIR

DEFLECTOR

CHANNEL

MAIN

BURNER

PUMP

OVER-RUN

THERMOSTAT

CONTROL

BOX

CODE

BADGE

CONTROL

THERMOSTAT

Supplied By www.heating spares.co Tel. 0161 620 6677

Where

the installation of the boilerwill

be

in an unusual

location, special procedures

may

be

necessary

and

BS

6798 givesdetailed guidance

on

this aspect.

Ensure that the

gas

supply

pipe

and

meter are large

enough for

this

appliance

and

any

others that

may

be

run off the same meter. Reference

should

be

made

to

BS6891

Boiler

Mounting

Surface

Theboiler

must

be

mounted

on

a flat wall,

which

may

be

of

combustible

material and

must

be

sufficiently

robust

to

takethe

weight

of

the boiler.

The

requirements

of

the

local authorities

and

the Building Regulations

must

be

adhered to.

IMPORTANT

NOTICE:

TIMBER

FRAMED

HOUSES

If

theappliance is

to

be

fitted in a timberframed building,

it should

be

fitted in

accordance

with

British Gas

Publication

DM2

'Guide for Gas Installations in

Timber

Framed Housing'.

If

in doubt,

advice

must

be

sought

from the local

Gas

Region

of

British Gas.

Clearances

Around

the

Boiler

The following minimum clearances

must

be

maintained

after installation, for correct operation

and

servicing

of

the boiler:

61

Omm (2 ft) at the front

of

the boiler

Smm (0.2 in) each side

of

the boiler

Balanced Flue Terminal

and

Ducting

The fresh air inlet

and

flue

ducts

can

be

run

from either

the left, right, rear

or

top

of

the

boiler

to

a miniature

terminal

on

the outside

of

the building.

Theminimumspacingsfromtheterminal

to

obstructions

and ventilation openings are

shown

in FIG. 3. For infor-

mation appertaining

to

horizontal flue lengths

reference should

be

made

to

FIG.

4.

Ifaterminal isfitted lessthan 2mabovea balcony,

above

ground

or

abovea flat roof

to

which

people

have

access

then a suitable terminal

guard

should

be

fitted.

(P.l.L

No. 205792).

Ref

er

to BS5440 Part 1

for

further

guidance.

Under

Carport.

/

'fo

1--"-o..£.

--~-~~-~~-·---!"--.+-

L~

!G

FIG. 3

THE

SITING

OF

BALANCED

FLUE

TERMINALS

5

50mm

(2 in)

at

the

top

(measured from

the

top

of

the

boiler case),

except

where

the

optional extra

pump

cover

is

to

be

fitted,

when

178mm

(7 in) should

be

allowed.

100mm

(4 in) at the

bottom

of

the boiler.

Additional clearances

to

these are required during

installation for lifting

the

boiler

and

127mm

(5

in) is

required at the

top

of

the boiler for

access

to

the

pipe

connections.

Ventilation

If

theboileris

to

be

installed in a confined

space

such

as

a cupboard, the

space

will

need

ventilating.

Openings

must

be provided

at

the

top

and

bottom

of

the

cupboard

each

of

which

should have a free area

as

shown

in

TABLE 1. Furtherdetails

for

installation

of

a boilerwithin

a compartment are given in

BS

6798.

TABLE 1

PRIMA

AIR

VENT

AREAS

in

2 cm2

30F 16 103

40F

21

135

50F 26 170

60F 32 206

80F 43 277

100F

54

349

If the openings draw air from outside

the

building the

free

areas

may

be

halved. Refer

to

BS

5440

Part 2

forfurtherguidance.

INFORMATION RELATING

TO

VERTICAL FLUING IS

PROVIDED

IN

THE PACK CONTAINING THE VERTI-

CAL

FLUE SYSTEM.

NOTE

Where a flue terminal is fitted less than 1000mm from a

plastic

or

painted gutter

or

500mm from painted eaves,

analuminiumshield

of

1000mmlength

should

be

fitted

to

underside of gutter

or

eaves.

Any

car

port

or

other

add-on

extensionshould consist

of

a roof

or

a roof

and

one

other wall. If itconsists

of

a roof

and

two

otherwalls-theinstallationshall

be

treated

as

suspect and further

advice

sought.

POSITION MINIMUM DISTANCE

A. DIRECTLY BELOW

AN

OPENABlE

WINDOW,

AIR VENT,

OR

ANY

OlHER

VENTILATION OPENING.

B.

BELOW

GUTIER.

DRAIN/SOIL

PIPE

C. BELOWEAVES

0. BELOW A

BALCONY

OR

CAR PORTROOF

E FROM VERTICAL DRAIN PIPES ANO

SOIL

PIPES

F.

FROM

INiERNAL

OR

EXlERNAL

CORNERS

G.

ABOVE ADJACENT GROUND OR BALCONY

LEVEL

H.

FROM A SURFACE FACING THE TERMINAL

I.

FACING TERMINALS

J.

FROM

OPENING

(DOOR/WINDOW)

IN

CARPORT INTO DWELLING

K.

VERTICALLY FROM A TERMINAL

ON

THE SAME

WALL

L HORIZONTALLY FROM A TERMINAL ON

THE SAME WALL

M.

ADJACENT

TO

OPENING

300

25

75

25

300

600

1.200

1.500

300

150

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REAR OR SIDE FLUEING

MAXIMUM

LENGTH'X'

STANDARD

FLUE

s1omm

SYSTEM

(2Qin)

1

METRE

RULE

955mm

SYSTEM

(37in)

100F

MODEL

ONLY

= 2METRE

FLUE

1955mm

SYSTEM

(nin)

30f.

40F.

50F'

60F & 80F

MODELS

ONLY

FIG. 4 FLUE LENGTHS

ELECTRICITY

SUPPLY

A 240

voHs-

50Hz, single

phase

electricity

supply

fused

to

3 amperes, must

be

provided

in

accordance

with

the

latest edition

of

the

1.E.E.

Wiring Regulations

and

any

other

local regulations

that

may apply.

The

current rating

of

the wiring to the boiler must exceed

3 amperes and have a cross sectional area

of

at

least

0.75mm2

in

accordance with BS 6500. Table 16.

should be controlled

by

an

exclusive

3A

fused

double

pole switch {having

at

least

3mm

contact separation

in

both

poles)

so

that

complete

isolatron

from

the

supply

can

be achieved

to

enable

servicing

work

to

be carried out in safety.

GAS

SUPPLY

A

gas

supply pressure

of

20

mbar

is required at

the

inlet

to

the appliance. Performance

data

is based

on

·use of reference

gas

G20.

The

supply to the boiler and its associated equipment

Maximum working head

Minimum working head

Gas supply pressure

Maximum flow temperature

Electricity supply

Internal Fuse

PowerConsumption

Gas supply connection

Appliance lift weight (min)

Appliance weight installed

Water content

Row/Return connections

TECHNICAL DATA

30.Sm (100ft)

150mm.(6in}

20mbar

82°C

240v-50Hz fused at 3A

TypeT1A

80

Watts (excluding pump)

Re.

1

h (%in BSP female)

30F, 40F, 50F & 60F Models

26.0kg

(57.31bs)

37.1

kg

(81.81bs)

2.0 litre (0.44 gal)

22m copper

6

80F & 100F Models

33.Skg

(73.871bs)

46.4kg

(102.31bs)

2.4 litre (0.53 gal}

28mm

copper

Supplied By www.heating spares.co Tel. 0161 620 6677

I

BOILER

INJECTOR

GAS RATE

INPUT

OUTPUT

BURNER

PRESSURE

I

SIZE

m%

(ft%) kW(Btu/h) kW(Btu/h) mbar

iowg

i Min

0.71

(25.23) 7.65(26116) 5.86(20000) 3.9 1.6

l

30

2.9mm 0.87(30.61) 9.29(31686) 7

.33(25000) 5.9 2.4

Max 1.03(36.23) 10.99(37500)

8.

79(30000) 8.4 3.4

Min 1.06(37.40) 11.35(38710) 8.79(30000) 6.5 2.6

l

40

3.1mm

1.21

(42.86) 13.00(44360) 10.26(35000) 8.6 3.5

Max 1.37(48.31) 14.65(50000) 11.72(40000) 11.3 4.5

Min 1.39(49.11) 14.90(50826} 11.72(40000) 7.0 2.8

150

3.5mm 1.54(54.35) 16.49(56250) 13.19(45000)

8.6

3.5

Max

1.71

(60.39) 18.32(62500) 14.65(50000) 11.0 4.4

Min 1.73(61.07) 18.53(63211) 14.65(50000) 10.7 4.3

60 3.6mm 1.89(66.84) 20.28(69182) 16.12(55000) 12.8

5.1

Max

2.05(72.46) 21.98(75000) 17.58(60000) 14.9 6.0

Min

2.13(75.19) 22.81(77821) 17.58(60000) 6.6 2.6

80 4.4mm 2.43(85.94) 26.07(88945) 20.52(70000) 8.7 3.5

Max 2.74(96.62) 29.31(100000) 23.45(80000) 11.8 4.7

Min 2.78(98.09) 29.75(101523) 23.45(80000) 8.0 3.2

100 4.7mm 3.10(109.38) 33.18(113208) 26.37(90000) 9.9 4.0

Max 3.42(120.77) 36.64(125000) 29.3(100000) 12.2 4.9

CIRCULATION PUMP SELECTION

TABLE2

The resistance through the heat exchanger when

operating with a water flow rate producing

an

11

°C

temperature rise atmaximum boileroutput are shown in

TABLE

2.

Ifothercontrols, such as three-position valves

are used in the system, the resistance through them,

quoted in their manufacturer's literature must be taken

into account. The pump may befitted on eitherthe flow

or

return and MUST be wired directly

to

the boiler

terminal block, see

FIG.

23. It must be fitted with two

isolating valves which are positioned as close

to

the

pump as possible. Closing of any valve must always

leave the open vent unobstructed.

Boiler size Water Flow

Rate

BOILER

RESISTANCE

Litres/sec

gal.min

kN/m2

30F

.19 2.5 1.5

40F .25

3.34

3.0

50F

.32 4.17 4.25

60F

.36 5.0 6.25

80F

.51 6.67 7.0

iOOF

.64 6.4

11.0

kN/m

2 in wg

12.0

46

·---r--··~·~--~·-~--~·~-~--~-~-r~

Imp. Gall/min.

Litres/sec 1 2 3 4 5 6

.76 .152 .227 .303 .379 .455

FIG. 5 PRESSURE LOSS ACROSS BOILER

7

.53 8

.61

BOF

& 100F

9

.68

inwg

6.0

12.0

17.0

25.0

28.0

44.0

Supplied By www.heating spares.co Tel. 0161 620 6677

The System

The

boiler

must

be

used

on

INDIRECT FULLY PUMPED

systems

only,

which

may

be

sealed

or

open

vented.

The

system

should

be

designed

so

that

the

maximum

static

head

does

not

exceed

30.5m (100ft) and a

minimum of 150mm (6in).

See

FIG 6.

On

all

systems

the

pump

should

be

wired

to

the

boiler

tenninal block, it will

then

be

controlled

by

the

pump

over-run thermostat.

This

will

ensure

that

the

pump

will

continue

to

run after

boiler

shut

down

if

the

water

temperatureb !1igh,

thus

preventingnuisanceoperation

of

the

overheat thermostat.

It is

important

that

where

electrically operated

zone

valves are

used

the

boiler

is

wired

so

it

does

not

cycle

when

the

zone valves are closed. Also, systems

fitted

with

controls

that

close

both

hot

water

and

central.

heating

circuits

while

the

boiler

is

stillhot,

must

be

fitted

with a

by-pass

circuit

to

dissipate

the

residual heat

from

within

the

boiler.

Ifathreeportdivertervalve

is

used

as

shown

in

FIGS. 6, 7

a

by-pass

is

not necessary since

one

circuit

is

always

open.

Where a

pair

of

two

port

valves are used, a

by-pass

is

necessary. The total length

of

the

by-pass

circuit

taken

from

the

boiler

connections

should

be

greater

than

4

metres

of

22mm pipe. It

should

be

fitted with a

lockshield

valve and

be

adjusted

to

maintain a

minimum

flow

through

the

boiler

of

4.5

litres/min

(1

gal/min)

see

FIGS

6.

7.

Systems fitted with

controls

which

allow

the

boiler

to

·operate

when

both

the

hot

water

and

central

heating

circuits are closed i.e.

mechanically

operated

thermo-

staticcontrolvalves,

must

be

fitted

with

a

by-pass

circuit

capable of:-

1. Dissipating a

minimum

of

1

kW

(3400 Btu/h).

2.

Maintaining a

minimum

water

flow

through

the

boiler

of

9 litres/min (2 gal/min).

A suggested

method

of

meeting

these

requirements

by

using a bathroom radiator fitted

with

two

lockshield

valves

is

shown

in

FIGS. 6, 7.

Additional system information

can

be

found

in

the

Control Systems, Pipework

and

Wiring Guide.

Drain off

taps

should

be

fitted

in

the

pipework

close

to

the

boiler

and

in

the

low

points

of

the

system.

NOTE

Although

the

system

can

be

emptied

using

the

drain

off

taps

installed

in

the

pipework

around

the

system,

to

empty

the

boiler

it

is

necessary

to

remove

the

drain

off

cap

positioned

within

the

boiler

case. See FIG. 2.

8

SEALED SYSTEMS

Installation

The installation

must

comply

with the requirements

of

BS 6798 1987

and

BS

5449

Part

1.

The B.G.

publication

"British Gas Specification

for

Domestic

Wet

Central

Heating Systems"

should

also

be

consulted.

SafetyValve

A non-adjustable spring-loaded safety valve, preset

to

operateat 3

bar

(451bf/in2) shall

be

used.

It

must

comply

with

BS

6759 Part1and

include

a manual

testing

device.

It shall

be

positioned

in

the

flow

pipe

either

honzontally

or

vertically

upwards

and

close

to

the

boiler.

No

shut-off

valvesare

to

be

placed

between

the

boiler

and

the

safety

valve.Thevalve

should

be

installed

into

a

discharge

pipe

which

permits

the

safe

discharge

of steam

and

hot

water

such

that

no

hazard

to

persons

or

damage

to

electrical

components

is

caused.

Pressure Gauge

A pressure gauge incorporatinga fiII

pressure

indicator,

covering

the

range0-4

bar

(601bf

/in

2)

shall

be

fitted

to

the

system.It

should

be

connected

to

the

system,preferably

at

the

same

point

as

the

expansion vessel. Its location

should

be

visible from

the

filling point.

Expansion Vessel

A diaphragm

type

expansion vessel

to

BS4814 Part 1

shall

be

fitted

close

to

the

inlet side

of

the

pump.

The

connecting

pipework

should

not

be

less

than

15mm(%in

nominal). Pipework connecting

the

expansion

vessel

should

not

incoporate valves of any sort.

Methods

of

supporting

the

vessel are supplied

by

the

manufacturer.

The nitrogen

or

air

charge

pressure

of

the

expansion

vesselshall

not

be

less

than

the

hydrostatic

head

(height

of

the

top

point

of

the

system above

the

expansion

vessel). To size

the

expansionvesselit

is

first necessary

to

calculate

the

volume

of

water in

the

system

in litres.

The

following

volumes

may

be

used

as

a conservative

guide

to

calculating

the

system volume.

Boiler Heat Exchanger: 6.5 litres

Small Bore Pipework: 1 litre

per

kW

of

Micro

Bore Pipework:

Steel Panel Radiators:

Low Water Capacity Radiators:

Hot

water Cylinder:

system

output

7 litres

8 litres

per

kW

of

system

output

2 litres

per

kW

of

system

output

2 litres

Supplied By www.heating spares.co Tel. 0161 620 6677

If the system isextended, the expansion vessel volume

mayhavetobe increased unlessprevious provision has

been made for the extension. Where a vessel

of

the

calculated size is notavailable, the nextavailable larger

size should be used.

The boiler flow temperature is controlled at approx-

imately 82°C.

The vessel size can nowbe determined from the follow-

ing table where V=System volume in litres.

Vessel Charge Pressure(bar)

0.5

1.0

Initial System Pressure (bar)

1.0 1.0

Expansion Vessel Volum.e (litres) vx 0.11 v

x0.087

Cylinder

The hot water cylinder must be

an

indirectcoil type

or

a

directcylinderfitted withan immersion calorifiersuitable

for operating at a gauge pressure

of

0.3

bar

(51bf/in2) in

excess of safety valve setting. Single feed indirect

cylinders are not suitable for sealed systems.

Method

of

Make-Up

Provisionshall bemadeforreplacingwaterlossfrom the

system

either.-

i)

fromamake-upvessel

or

tankmountedinaposition

higherthan the

top

point

of

thesystem,andconnec-

ted througha non-returnvalve to

the

system

on

the

return side

of

hotwatercylinder

or

the return side

of

all heat emitters.

or

ii) whereaccesstoa make-upvesselwouldbedifficult

by

using the mains

top

up

method

or

a remote

automatic pressurisation and make-upunitas illus-

trated in FIG. 7 METHODS 1 and

2.

Mains

Connection

There shall be

no

connection to

the

mainswater supply

or

to

the water storage tank which supplies domestic

water even through a non-return valve, without the

approval

of

the local Water Authority.

Filling Point

The system shall befitted with a filling point at low level

which incorporatesastop

valve

to

BS101Oandadouble

checkvalve(approved

by

theNationalWaterCouncil)to

be fitted in this order from the system mains, Refer to

FIG. 7. Method 1.

WATER

LEVEL

l--

OPTIONAL

ZONE

VALVES

TOP

OF

CASING

BOILER

~

XVENT

~

OPTIONAL

~r

3

PORT

VALVE

1 1

~LJ

.-1...

.---..

------------{.:>

·~---~--------<

1---1

>--

I

BY-PASS

BALANCING

VALVE

t

'

X-r

I

--.,

I

..J

t....

-

.J

X-L

______

_j

I

ALTERNATIVE

BY-PASS

ARRANGEMENT

USING

THE

BATHROOM

RADIATOR

FITTED

WITH

TWO

LOCKSHEILD

VALVES

FIG.

6 OPEN VENTED

FULLY

PUMPED SYSTEM

Flrreo

WITH A COMBINED FEED AND VENT

9

Supplied By www.heating spares.co Tel. 0161 620 6677

SAFETY

VALVE

PRESSURE

GAUGE

A EXPANSION

uVESSEL

OPTIONAL

ZONE VALVES ><VENT

OPTIONAL~'

3PORTVALVE

~

CYLINDER

Y-KEUP

I VESSEL

I

~L

T---.

,_,

.__

·----c---------

--t>

~-~------~

L-J

<--J

' '

I I

X-L-

-J

~

·~\~~~---J.--~~

BY.PASS \

8AlANCINGVALVE

\

BOILER

-----

FILLING POINT

ALTERNATIVE BY-"ASS

ARRANGEMENT USING THE

BATHROOM RADIATOR

FITTED WITH TWO lOCKSHIELD

VALVES

Two methods

of

filling a sealed

water system

METHOD 1

MAINS TOPPING-UP

METHOD

NOTE:

This

method

of

filltng a

sealed

system

may

only

be

used

if

acceptable

to

the

Local

Water

Undertaking

HEATING

SYSTEM

MAINS WATER

SUPPLY

!SE RV

ICE

PIPE l

DOUBLE

CHECK

VALVE

HOS(UNION

j

'-='---+<lf-r-1KJ--------C><l-

STOP TEMPORARY

VALVE HOSE

FIG 7. FULLY PUMPED SEALED SYSTEM

FLUE KITS AND OPTIONS (See Page 2)

30F

40F

SOF

Standard

Flue

System 225540 225540 225540

1metre

Flue

System

NIA

N/A

NIA

2metre Aue System 225543

225543

Vertical

Flue

System 225157 225158 225159

90"

Flue

Bend

Kit

225600 225600 225600

45°

Flue

Bend

Kit

225601

225601 225601

Flue

Elbow

Kit

225602 225603

225604

(For

use with

Flue

Bends)

Vertical

Flue

Terminal

Kit

225606

225607

225608

(For

use

with

Flue

Bends)

1metre

Flue

System 225545 225545 225545

2metre

Flue

System 225544 225544 225544

Vertex

Flue

Kit

225700

225701

225702

Vertex

Flue

1 metre extension

kit

84265 84265

B4265

Terminal

Wall

Plate 212306

212306

Terminal

Guard 205792 205792 205792

Internal

Fitment

Kit

225183 225183 225183

Pump

Cover

Kit

(Gin)

225422 225422 225422

Pump

Cover

Kit

(7in

12in)

225423

Pump

Cover

Kit

(13in

-18in) 225424

225424

Pump

Cover

Kit

(19in

-

24in)

225425 225425 225425

METHOD2

CISTERN FILLING METHOD

NOTE:

Cistern

to

be

supplied

through

a

temporary

connection

from

a service

pipe

or

cold

water

distributing

pipe

STOP VALVE

60F

BOF

225541

NIA

225544 225544

225160

225161

225600

NIA

225601

NIA

225605

NIA

225609

NIA

225545

NIA

225544

NIA

225703

NIA

84265

NIA

212280 212280

205792

225184

225422 225418

225423 225419

225424 225420

225425

225421

10

MAINS

WATER

SUPPLY

OVERFLOW]

CISTERN

\

;-

-t:><J--

PRESSURE

PUMP

REDUCING

VALVE

llF

AEOVIREO)

100F

225542

225545

NIA

225162

NIA

212280

205792

225184

225418

225419

225420

225421

STRAIGHT

FLUE

KITS

I

FLUE

BEND

KITS

J_

VERTEX

FLUE KITS

OTHER

KITS

J_

Supplied By www.heating spares.co Tel. 0161 620 6677

INSTALLATION INSTRUCTIONS

It is the law that all gas appliances are installed and

serviced

by

competent

persons

as stated in

Gas

Safety {Installation and Use) Regulations 1984.

For Health and Safety information see back page.

Electrical

testwork

should

be

carried

out

by

a

competent

person

in

accordance

with

the

LE.E.

Wiring Regulations.

The boiler and its associated equipment will arrive

on

site in two cardboard cartons. The contents of each

carton is as follows.

CARTON 1

:-

Boiler

Pack

Boiler

Template

Literature Pack Containing:-

lnstallation and Servicing Instructions

User's Instructions

Control Systems Pipework and Wiring Guide

Auxiliary Pack Containing:-

BoilerMounting Bracket

Gas Service Cock and Accessory Packs

SIDE

OF

BOILER

REFERENCE

MARK

D

0 '

FOLD

LINE

FOR

LH

FLUE

'-....

A

OUTLET

BOTTOM

OF

BOILER

FIG.

8 TEMPLATE

TOP

OF

BOILER

TEMPLATE

Place template in proposed boilerposition ensuring n

1s

level (the minimum side clearances are automatically

allowed for)

REAR FLUING

Markholes

'A',

'B', 'D', large flue outlet hole and side of

boiler reference lines throught slots

·c·.

SIDE FLUING

Mark hole positions 'A', 'D' and side

of

boiler reference

lines through slots 'C'.

Mark large flue outlet hole and holes 'B' using the

thick lines on the template for minimum clearance at

the rear of

the

boiler and the

thin

dotted lines for

maximum clearance. See note on Fig. 1.

NOTE -Prima 30F, 40F

and

50F

only

If

a flue bend kit

is

to be used. the correct flue hole

size

is

obtained

by

placing the

wall

sealing collar

centrally over the marked flue outlet position, and

marking around the outside of the collar.

11

CARTON

2:-

Flue

System

Pack

Horizontal Flue Packs

Air/Flue Duct Assembly (length as ordered)

Flue Elbow Extension

Flue Terminal

Flue Sealing Collar

Rope Sealing Ring

Side Infill Panels-2 off

Vertical Flue Pack (2 cartons)

Air/Flue Duct Assembly

Flue Terminal

Terminal Cowl

Vertical Flue Adaptor

Accessory Pack

Side Infill Panels-2 off

Flue Installation Instructions

HOLE WALL

PLUG

SEALING

COLLAR

FOR

FLUE

OUTLET

L

0

--

-a

-

.

-~FIXING

SCREWS

()

-----

SIDE

OF

BOILER

REF.MARK

0

r;:::;.===~rT.e~---TOP

FOR MIN.

- - - -

REAR

CLEARANCE

C)

SCREWS "

CUPWASHER

FIG.

9 BOILER MOUNTING PLATE

Remove template and carefully cut flue outlet hole

through wall. It necessary make good around hole to

enable holes 'B'to be drilled.(If internal flue fitment kit is

being used refer to instructions supplied with kit).

Drill holes 'A' using a 7 mm drill

Drill holes 'B' and 'D' using a 5 mm drill

Using wall plugs, screws and washers {accessorypack

A)

attach boiler mounting plate to wall. Ensure that it

is

level and thecorrectwayup,

i.e.

to providetheclearance

at

the rear of the boiler allowed for when marking out

using the template. See also NOTE on

FIG.

1.

Insert wall plugs into holes 'B' (accessory pack

B)

and

hole 'D' (accessory pack

D).

Insertfluesealingcollar intowalland securewithscrews

provided, (accessory pack

B).

Make good the internal

wall surface around flue sealing collar.

Supplied By www.heating spares.co Tel. 0161 620 6677

CUTTING AIR/FLUE DUCTS

i---

·x·

-··~..;

I

FIG. 1

Oa

SIDE

FLUE

1. Measurefrom outsideface

of

wall tothe side

of

boiler

casing reference line (dimension 'x').

2.

Take

air/flue duct assemblyand measuring from the

flanged end, mark and cut the outer

duct

and inner

flue duct to dimension 'x' plus 20mm. Ensure that

both ducts are cut squarely.

INNER

FLUE

DUCT

30F

to50F

TERMINAL

FIG.

11

AIR/FLUE

DUCT

ASSEMBLY

1.

Slide rope sealing ring on to airduct.

2.

Engage the terminal on

to

the ends

of

the inner

flue duct and press fully home.

FIG.

12

SECTIONAL

VIEW

OF

AIR/FLUE

DUCT

ASSY THROUGH WALL

12

AG.

10b

REAR

FLUE

1. Measure wall thickness (dimension 'Y').

2.

Take

air/flue ductassembly and measuring from

the

flangedend, markandcuttheouterair

duct

andinner

flue duct to dimension 'Y', plus

45

mm. Ensure that

both ducts are cut squarely.

NOTE

Cutting length remains the same for minimum or

maximum clearance at the rear of the boiler.

AIR

DUCT

ROPE

SEALING

RINI'";

3.

Engage four screws from accessory pack

·c·

into

thepre-drilled holes in the terminal and screw fully

home.

These screws which are self drilling will pierce the

air duct and secure the terminal to airduct.

On models 30F

to

50F, it is necessary to drill four

pilot holes inthe air

duct

4. Protect duct where it is likely to come into contact

with

mortar

by

using

adhesive

tape

provided

(accessory pack E).

5. Insert the assembly into

the

wall

slidingthe rope

sealing ring along the air duct into the tlue sealing

collar.

Bend

the

six

tabs

on

flue

sealing

collar

inwards to retain the rope sealing ring. Ensure air

duct flange studs

do

not obstruct lifting

of

boiler

onto mounting bracket.

Supplied By www.heating spares.co Tel. 0161 620 6677

DOOR

FAN

COMBUSTION

CHAMBER FRONT

PANEL

FIG.

13

PREPARING

THE

BOILER

The controls cover should have been removed

when

unpacking

the

boiler,

if

not remove controls cover

by

opening the

door

covering

the

securing screw

on

the

underside

of

controls cover, see

FIG

13.

Undosecuringscrew,pull controlscoverforward10mm,

lower to release from four side fixings and pull forward

clear

of

thermostat knob.

Removethe

door

by

undoing

the

lowerfixingscrewsand

lift

door

off

the

two

upper

hinge brackets.

Disconnect

the

two

flexible tubes from

the

flue elbow.

Remove

thumb

screw securing the flue

elbow

and

remove

elbow

by

slidingforward

to

disengage

it

from its

rear retaining flange.

NOTE

The boiler

is

supplied with the left hand flue outlet

sealing plate removed.

If

anotherflue outlet direction

is

required,remove

the

appropriateflueoutletsealingplate

and transfer

it

to

the left hand position.

13

FLUE OUTLET

SEALING

PLATE

CONNECTOR

BOILER

MAIN

ASSEMBLY

SECURING SCREW

ACCESS DOOR

The boilermaynow

be

liftedonto

its

mountingbracket

or

ifdesired

the

applianceliftweightcan

be

furtherreduced

byremovingthefan/fluehood assemblyalso

the

burner/

gas control assembly as follows.

1. Removing fan/fluehood assembly.

Disconnect

the

fan

supply

and earth leads from the

connector

adjacent

to

the

fan. Remove

the

two

wing

nutssecuringthefluehoodtotheheatexchanger.Uft

out

fanlfluehood assembly.

2.

Removing burner/gas control assembly.

Remove

the

screws securing

the

combustion

chamber

front panel and remove panel. Unplug the

electrical

supply

leads

for

the

gas controlvalve from

the control box.

Remove

the

screw securing

the

gas

controlvalve

to

its

support

bracket

Disconnectelectrode lead from electrode.

Remove

two

screwssecuring

the

burnerassembly

to

the

bottom

of

the boiler case and lift

out

the

burner/

gas control assembly.

Supplied By www.heating spares.co Tel. 0161 620 6677

LIFTING THE BOILER

Lift the boiler

onto

its mounting

bracket

FIG.

14

Locatethestudson the air ductflange throughthe boiler

casingand secureusingfourwingnuts(accessorypack

F).

0

-LEG

AG. 16 SECURING BOILER

ADJUSTMENT

SCREW

BASE

PLATE

SECURING SCREW

Rotatethe lefthandadjustmentscrewtoalign one

of

the

holes in the base plate with hole 'D' in thewall. Working

through the hole in the leg, secure the base plate

to

the

wall using the screw from accessory pack D.

Make good the wall surface around the flue terminal.

Fit optional terminal wall plate

if

required.

14

ADJUSTMENT

SCREWS

AG.15

TRANSPORTATION FOOT

Position boileron

its

mountingbracket

so

that

the

sides

of

theboilerline

up

with

the

referencelines

·c·

on

the

rear

wall.

Undo the two screws securing

the

transportation foot

anddiscardfoot. Vertical alignmentwith rearwall can

be

corrected usingthe adjustmentscrews at

the

rear

of

the

boiler. See FIGS.

15

&

16.

D

FIG.

17

If

the

fan/fluehood assembly

or

burner/gas control

assembly were removed

to

reduce

the

appliance lift

weight.refitthem

to

the

boiler.Reassemblyis

the

reverse

of removal. When refitting

the

burner/gas control

assembly ensure that

the

locating

on

the

rearof

the

burnerengages correctly into

the

rearsupport

bracket

When refitting the fan/fluehood assembly ensure that

the

rear

of

the fluehood

is

correctly located beneath

retaining flange. See

FIG.

17.

Supplied By www.heating spares.co Tel. 0161 620 6677

ELBOW EXTENSION

SECURING

SCREW

AG.

18

FLUE

ELBOW

EXTENSION

When side fluing, slide the elbow extension onto the

elbow, push on fully and align the hole for securing

screw with arrow on elbow. Engage the screw from

accessory pack 'C' into the pre-drilled hole

in

elbow

extension and screwfully home.The screwwhich isself

drillingwill pierce theelbowand securetheextension

to

the elbow.

When rear fluing, the elbow extension should be

discarded.

FIG.

20

PIPE

CONNEGllONS

Connect system pipework to the boiler, compression

fittings should be used. lf however capillary fittings are

used it is essential to temporarily remove both of the

thennostat bulbs from the flow pipe before soldering.

AG.

19

LOCATION

OF

PRESSURE

SENSING

TUBES

Slide the flue elbow into the flue duct. ensure that the

sealing gasket is in place and the elbow is correctly

located beneath theretainingflangeattherear. See

FIG.

19.

15

Secure elbow using thumb screw previously removed.

Reconnect flexible tubes to elbow.

ENSURE

THEY

ARE

NOT

KINKED.

The tubes are supplied at

the

length required for left

hand flue outlet. When using rear

or

right hand flue

outlets,toavoid kinking,thetubesshouldbeshortened

by

150mm. Abandaroundthetubeindicatesthecutting

point

NOTE

Red

tubeconnects

the

frontaluminiumtubeto

the

lower

connection on the elbow, each being identified with a

red ring.

Adrainofftapshouldbeinstalled closetotheboiler

if

it

is

inalowpointofthesystem. Connectthegassupplypipe

to the inlet of the gas cock. Ensure the gas cock isin a

position where it can

be

easily operated when the

controls cover is removed.

Supplied By www.heating spares.co Tel. 0161 620 6677

ELECTRICAL

The boiler and all externalcontrol circuitwiring must

be

supplied from the same single isolating switch

or

plug

and

socket

and should

be

fused at 3A.

Caremust be taken

to

ensurethatall wiring totheboiler

is kept clear

of

sharp edges and hot surfaces.

SECU::HNG

SCREW

AG. 22 ACCESS

TO

THE

BOILER

ELECTRICAL

TERMINAL

BLOCK

EX1'ERNAL

ELECTRiCTJY

SUf>f'LV PROGRAMMER

EXTlRPiAl

3

Con

~~~~00

JUCTION BOX

S

to3Cott

CONlAOL

VAlVES

ETC.

ROOMANS)/OR

CYllNt>ER

'THERMOSTAT

BOtU:R

FIG.

21

PRINCIPLE

OF

WIRING

16

The boilertenninal

block

which

is

situated

in

thecontrol

boxis not designed to acceptwiring from all the on site

controls and therefore

the

installerwill usually need

to

incorporate a suitable junction box. This may not be

required ifa Potterton ElectronicProgrammerisusedas

thisincorporatesajunctionbox.Theprincipleofwiringis

shown in AG.

21.

Furtherinfonnation on wiring of system controls can be

found intheControlSystem, PipeworkandWiringGuide.

Remove control

box

securing screw and lower the

control

box

to gain access to

the

boilertenninal block.

Remove packaging from rear of the control box.

Supplied By www.heating spares.co Tel. 0161 620 6677

TEST

SOCKET

GAS CONTROL

VALVE

SUPPLV

LEAD

AG. 23

ROUTING

OF

ELECTRICAL

WIRING

Followingthepumpmanufacturer'sinstructionsconnect

the pump supply wires to terminals marked

PUMP

LN

...L.

on the boiler terminal block. Route the cable

through theplasticbush intherearofthe control boxas

illustrated in

AG.

23 and secure, using thecableclamp.

Route a four core cable through the plastic bush in the

rearofthecontrol boxand thecable clampas illustrated

in

AG.

23 and connect itto the boilerinputterminals as

follows:-

Permanent live to terminal marked MAINS 'L'.

Neutral to terminal marked MAINS 'N'.

Earth to terminal marked'-:!:-' adjacent to cable clamp.

See

NOTE.

Switched live from external controls to terminal marked

MAINS

'Swl'.

If there are no external controls fitted connect the

Swl

terminal

to

permanent live in the junction box.

FITIING SIDE INFILL PANELS

If required, the gap between the casing sides and

rear wall can be closed

off

using the infill panels

supplied.

Ensure the casing surface is FULLY CLEAN AND

DRY.

Remove the protective backing paper from the

adhesive strip on the

infill

panel, carefully align and

press into place, applying FIRM EVEN pressure

down the FULL LENGTH of contact area between

panel and case. If conditions

are

near freezing, the

boiler case should be warmed prior to application of

the infill panel.

17

I I

NOTE:

Ensure that theearth conductoris longerthan the

L,

N &

Swl

from the point

of

anchorage, so that the current

carrying conductors become taut before the earth

conductor

if

cable is pulled out of the cable clamp.

When the wiring has been completedt:lose the control

box and replace the securing screw.

FIG. 24

Supplied By www.heating spares.co Tel. 0161 620 6677

COMMISSIONING

Open

Vented

Systems

Remove the pump and flush outthe system thoroughly

with

cold

water. Refitthepump. Fill andventthe system.

Examine for leaks.

Sealed

Systems

NOTE:

The system can

be

filled using a sealed system filler

pump

with a break tank

or

by

any other method

approved

by

the

Local Water Authority. Refer

to

'THE

SYSTEM' section Page 8 in these instructions, also

BS

6798

1987.

Remove

pump

and flushoutthesystem thoroughlywith

cold water. Refitthe pump.

RH

andvent the system until

the pressure gauge registers

1.5

bar

(21.5 lbf/in2}.

Examine for leaks. Raise the pressure until the safety

valve lifts. This should

occur

within ±

0.3

bar

of

the

preset lift pressure

of

3 bar. Release water

to

attain the

correct

cold

fill pressure, and set the indicator on the

water gauge to this value.

All

Systems

The whole

of

the

gas

installation including the meter

should

be

inspected and tested for soundness and

purged

in

accordance with the recommendations

of

BS 6891.

Electrical

testwork

should

be

carried

out

by

a

competent

person

in

accordance

with

the

l.E.E.

Wiring Regulations.

Test pilot unions for gas soundness

as

follows:-

Tum boiler thermostat

to

the

'O'

position.

Unplug

the

gas

control valve supply lead from the

control box and plug

it

into the test socket adjacent

to

the boilerthermostat knob, See AG. 23.

Tum

on

gas at the gas service cock.

Ensurethatthetimecontroliffitted isin an

ON

condition,

and that the room

and/or

cylinder thermostats where

fitted are set to high temperatures.

Switch

on

the external electricity supply

to

the boiler.

Gaswill

flow

to

the pilotonly.

tt

will not

be

ignited

as

the

ignition system

is

de-energised.

Using a leak detection fluid, check pilot unions for

gas soundness.

Tum

off

the external electricity supply and

gas

service cock.

Remove gascontrol valve plugfrom

th~

testsocketand

refit

the

plugintothesocketonthelefthand side of

the

control box. See AG. 23.

SETTING

AND

CHECKING

OF

CONTROLS

With the controls cover removed.

Fitapressuregaugetothe pressuretest nipple in burner

supply pipe.

See

FIG.

2.

Turn

on the boiler thermostat and ensure that the main

burner is alight. Check that the burner pressure is

in

accordance with values stated under TECHNICAL

DATA.

The burner pressure is set to the maximum output at

the factory. 18

Refit the combustion chamber front panel.

Fit

the

case door into position

by

lifting it onto

the

top

hinge brackets and secure it with the lower

two

fixing

screws.

Remove the temporary label

from

the

front

of the

appliance, having ensured compliance

with

the

warnings

on

the

label.

First

Ughtlng

WARNING: Before lighting the boiler.ensure that the

CASE

DOOR

HASBEENCORRECTLY FITTEDandthat

the sealingstripfitted

to

thecase

door

is

forming a tight

seal with the main boiler casing. Before proceeding

to

lightthe boiler, checkthat the externalelectricitysupply

totheboiler

is

switchedoffandthattheboilerthermostat

is

in

the

'O'

position.

Tum

on

the gas service cock.

Ensure that the

pump

and radiator isolating valves

are open.

Ensurethatthetimecontrol, iffitted

is

in an oncondition,

and that the room and/or cylinder thermostats, where

fitted are set to high temperatures.

Switch on the external electricity supply

to

the boiler.

After installation of the appliance, preliminary electrical

system checks must

be

carried

out

The checks

to

be

carried

out

are:-

A Earth Continuity

B.

Short Circuit

C.

Polarity

D.

Resistance

to

Earth

Refer

to

Fault

Finding

Chart

FIG.

30

Tum the boiler thermostat on and

to

a high setting and

after a period

of

time the main burner will light,this can

be

observed throughthe sightglassin thefrontcover

of

the boiler. The time period can vary upwards of

45

seconds, depending

on

the amount

of

air in the

pipework.

Test for

gas

soundness around the boiler components

using leak detection fluid.

Tum

the

boiler thermostat

to

·o·.

NOTE:

There

could

be

a delay in lighting if

the

control knob

is

switched

on

and off and then on again rapidly.

If

burnerpressure adjustment is necessary

proceed

as

follows, referring

to

AG. 25.

SIT

GAS

CONTROL

VAL

VE

Remove the plastic

cap

from beneath the gas control

valve

and

turn the pressure adjustment screw anti-

clockwise

to

increase

the

pressure

or

clockwise

to

decrease the pressure.

HONEYWELL GAS CONTROL

VALVE

Turn

the pressure adjustment screw anti-clockwise

to

increase the pressure

or

clockwise

to

decrease the

pressure.

Supplied By www.heating spares.co Tel. 0161 620 6677

PILOT

SCREW

(Fortest purpose only)

HONEYWELL

SPACER

I

SEALS

PRESSURE

ADJUSTMENT

SCREW

FIG.

25

MAIN

BURNER

PRESSURE

ADJUSTMENT

With the burner set

to

its correct pressure, the firing

rate

given

in

TECHNICAL

DATA

should

also

be

obtained

and

this

should

be

checked

by

meter

reading

at

least 1Ominutes after the main burner has

been

lit.

When

the

pressure

and

rate are

correct

replace the plastic

cap

on

the

SIT

gas

control valve.

Shut down the boiler remove the pressure gauge and

refitthescrewin thetestnippleensuringthatatightseal

is made.

Remove the self-adhesive arrow from the inspection

ticket tied

to

the burner supply pipe and stick it

to

the

Data Plate inside the controls cover

to

indicate the

appropriate burner setting pressure.

Refit the controls cover.

Relight the boiler

and

heat the system

to

maximum.

Check for water leaks, turn the boiler off, drain the

system whilst hot.

Refill the system and

on

sealed systems adjust

to

the

correct

cold

fill pressure.Setthepressure gaugepointer

to

the system design pressure.

Ifa by-pass circuit isfitted the by-pass valve should

be

adjusted with the boileroperating under minimum load

conditions

to

maintain suff1eient water flow through the

boiler

to

ensure that the overheat thermostat does not

operate under normal operating conditions.

Pilot

Burner

The pilot is pre-set and

no

adjustment

is

required. The

pilotflame envelopeshould covertheelectrodetipand

sparkearthingstripsee

FIG.

29.

If

thepilotflame

is

notas

illustrated, remove and clean the pilot as described in

the

Servicing Instructions Section

4,

PILOT BURNER,

Page22.

Boiler

Thermostat

At its minimum and maximum settings, the thermostat

should control the water flow temperature at approxi·

mately

55°C-82°C

(130°F-180°F).

19

PRESSURE

ADJUSTMENT

SCREW

The thermostat has been calibrated

by

the makers and

no

attemptshould

be

madeto re-calibrate it

on

site.Turn

the thermostat

to

the 'O' ·position and

check

that the

main burner shuts down.

Pump

Over-Run

Thermostat

Will keep the

pump

running after

the

boiler has shut

down, aslong

as

the

watertemperaturewithin

the

boiler

is

above 80°C.

The thennostat

is

presetand noadjustment

is

possible.

Overheat

Thermostat

Theoverheatthermostat is pre-setand noadjustment is

possible. It will require manuallyresetting ifan overheat

condition occurs.Access tothe reset buttonisthrougha

hole in the underside of the controls cover, see

FIG. 2.

Other

Boiler

Controls

All boiler mounted controls are designed

so

that

if

any

fault shouldoccurtheywill fail safe.

No

further setting

or

checking is necessary.

External

Controls

Check that any other external control connected in the

system, such as

clocks

and thermostats, control the

boiler as required.

User's

Instructions

A User's Instructions leaflet is provided with this boiler

but the householder must have the operation

of

the

boiler

and

system explained

by

the Installer. The

householder must also be advised of the importance

of

annual servicing and of the precautions necessary

to

prevent damagetothe systemand building, in the event

of the system remaining out of commission in frost

conditions.

Supplied By www.heating spares.co Tel. 0161 620 6677

PERMANENT

LIVE

SWITCHED

l!VE

PR

OWN

TESl

SOCKET

AG.

26

FUNCTIONAL

FLOW

DIAGRAM

HONEYWELL

AG.

27

BOILER

WIRING

DIAGRAM.

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20

PrimaF 30F User guide

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