P Series Pressure Jet

User Manual: P Series - Pressure Jet

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2 0 0
P

Remeha P 200

R e m e h a

Technical information

• Pressurized boiler
• Heat output: 59 - 256 kW

TABLE OF CONTENT
Preface

Description of the unit
1.1 General
1.2 Burners

4
4
4

Construction data
2.1 General
2.2 Sections
2.3 Casing

4
4
4
4

Technical data and dimensions
3.1 Dimensions
3.2 Technical data
3.3 Quotation specifications

5
5
5
6

Output data
4.1 Boiler efficiency
4.2 Combustion efficiency

6
6
6

Application data
5.1 L.P.H.W. version
5.1.1 Water temperature
5.1.2 Water pressure
5.1.3 Flow rate
5.1.4 Water treatment
5.2 Economisers
5.3 Flue gas discharge
5.4 Noise production

7
7
7
7
7
7
7
7
8

Installation requirements
6.1 Installation recommendations in the boiler
house

Assembly guidelines and installation
requirements
7.1 General
7.2 Water connections
7.3 Delivery in individual parts
7.3.1 General
7.3.2 Boiler assembly
7.4 Delivery assembled (4 to 7 sections only)

9
9
9
9
9
9
9

Instrument panels
8.1 Equipment contents
8.2 Instrument panel High/Low with hours run
meters
8.3 Wiring diagram instrument panel High/Low
with hours run meters 1

11
11

Commissioning
9.1 Pressurized boiler with gas burner
9.1.1 Commissioning procedure
9.1.2 Putting out of operation
9.2 Pressurized boiler with oil burner
9.2.1 Commissioning procedure
9.2.2 Putting out of operation

13
13
13
13
13
13
13

11
12

10 Fault finding

11 Maintenance recommendations
11.1 General
11.2 Maintenance instructions

14
14
14

Remeha P 200
PREFACE
These technical instructions contain useful and important information for the correct operation and maintenance of the Remeha boiler, model P200
Read these instructions carefully before putting the boiler into operation, familiarise yourself with it’s control
functions and operation, strictly observing the instructions given. Failure to do so may invalidate warranty or
prevent the boiler from operating.
The installation and commissioning of the boiler must be
carried out by a competent Engineer, with the relevant
certification i.e.: CORGI, ACOPS, IEE regs. etc.
On completion a copy of the boiler log / commissioning
sheet should be returned to Broag Ltd for record purposes.

If you have any questions, or if you need more information about specific subjects relating to this boiler, or it’s
installation please do not hesitate to contact us.
The data published in these technical instructions is
based on the latest information (at date of publication)
and may be subject to revisions.
We reserve the right to continuous development in both
design and manufacture, therefore any changes to the
technology employed may not be retrospective nor may
we be obliged to adjust earlier supplies accordingly.

DESCRIPTION OF THE UNIT
1.2 Burners
In principle all CE-approved pressure jet burners are suitable, subject to prior adjustment to the boiler capacity
and boiler construction. The individual boiler satisfies
inspection requirement for central heating boilers.

1.1 General
High efficiency pressurized boiler, suitable for use with
natural gas and light oil, by means of a pressure jet
burner. Also available with a condensing unit (ECO) (for
natural gas only).
Up to 141 kW (7 sections) the Remeha P 200 can be
delivered assembled (except for casing and instrument
panel).
The boiler meets the requirements of the CE regulations
in the following directives:
- Gas appliance directive no. 90/396/EEC
- Electrical low voltage directive no. 73/23/EEC
- E.M.C. directive no. 89/336/EEC
- Efficiency directive no. 92/42/EEC.
Classification type for evacuation of the combustion products: B23.

CONSTRUCTION DATA

2.1 General
The boiler block consists of cast iron sections which are
assembled by means of tapered nipples. The boiler is a
three pass design. The boiler block is insulated with a 80
mm thick layer of glass wool.
2.2 Sections
The sections are made of pearlitic cast iron.
Weights and measures of the sections:
- Front section:
59 kg H x W = 630 x 540 mm
- Intermediate section: 58 kg H x W = 630 x 540 mm
- Rear section:
61 kg H x W = 630 x 540 mm
2.3 Casing
Steel casing, finished with a high-quality insulation. The
front door is suitable for left or right opening as desired.

Fig. 01
IL46

Remeha P200

3
3.1

TECHNICAL DATA AND DIMENSIONS
Dimensions

Front view

Side view

Flow R”
Return R”
Flue ØD ext.

No. of
sections

Fig. 02

Rear view

Dimensions

00.13c.79.00002

* If the boiler is delivered with adjustable feet (standard
for assembled delivery 4 to 7 sections) the boiler will be
approximately 30 mm higher.
3.2

Technical data
Number of sections

Nominal heat output

Hi /
NCV

103

129

155

181

202

225

250

278

Hs /
GCV

114

143

172

201

224

250

278

309

Nominal
heat input

34 - 59 40 - 93 46 -117 52 -141 58 -165 65 -184 71 -206 77 -229 83-256

Remeha P 200

Dimensions

492

618

745

871

998

1124

1250

1377

1503

791

917

1044

1170

1297

1423

1549

1676

1802

450

575

700

825

950

1075

1200

1325

1450

ØD

150

200

“

1½"

mbar

103

127

158

mbar

litre

365

425

485

545

605

665

725

775

835

0.1

0.3

0.6

1.0

1.2

1.6

1.4

1.8

2.1

0.08

0.11

0.13

0.16

0.18

0.21

0.23

0.26

0.28

103

161

201

242

282

315

351

390

434

∆t=
Water
resistance

10°C
∆t=
20°C

Water contents
Boiler weight (dry)

Combustion chamber
mbar
1)
resistance
Combustion gas side
content
Flue gas flow rate

kg/h

Table 01
Technical data
1)
Determined with 20 % excess air.
3.3 Quotation specifications
- Heat exchanger manufactured from corrosion resistant “pearlite” cast iron
- Maximum operating pressure of 6 bar
- Maximum operating temperature of 95°C
- Sectional design with three passes for max efficiency
(gross 83%) and a generously sized combustion
chamber for minimising NOx production
- Water cooled base and rear sections
- Large insulated door (hinged left or right) allowing
easy access for service operations
- Supplied in broken down form for ease of delivery and
site access

- Powder coated enamel steel casing
- 80 - 100 mm thick glass wool insulation
- Suitable for use with a Natural gas, and/or 35 sec oil
fired pressure jet burner (matched with most popular
burner manufacturers)
- Supplied as standard with on/off switch, temperature
indication, control and high limit thermostats
- Efficiency 83% (Hs - GCV)
- Manufactured to ISO 9001
- CE approved.

OUTPUT DATA

4.1 Boiler efficiency
Up to 91.7 % at Hi (82.6 % at Hs) at full load and up to
93.2 % at Hi (84.0 % at Hs) at part load.
Average water temperature 70°C (80/60°C).

4.2 Combustion efficiency
Up to 93.0 % at Hi (83.8 % at Hs) at full load and up to
95.5 % at Hi (86.0 % at Hs) at part load.
Note: Hi = NCV ; Hs = GCV

5
5.1

APPLICATION DATA
L.P.H.W. version

As most systems contain a variety of metals which can
react with each other to cause corrosion. It is considered good practice to provide some form of water
treatment (especially in open vented systems) in order to
prevent or reduce the following:
- Metallic corrosion;
- Formation of scale and sludge;
- Microbiological contamination;
- Chemical changes in the untreated system water.

5.1.1 Water temperature
Maximum water temperature is 110°C.
The minimum acceptable return water temperature is, for
gas fired boilers 45°C and for oil fired boilers 40°C, at a
flow rate corresponding to a ∆t of 20°C at nominal heat
output.
5.1.2 Water pressure
Maximum pressure 6 bar.
The boiler is suitable for open and sealed systems up
to a maximum pressure of 6 bar and a minimum pressure of 0.8 bar. The boiler is suitable for installation in
basement or rooftop boiler houses.

Suitable chemicals and their use should be discussed
with a specialist water treatment company prior to carrying out any work. The specification of the system
and manufacturers recommendations must be taken into
account, along with the age and condition of the system.
New systems should be flushed thoroughly to remove all
traces of flux, debris, grease and metal swarf generated
during installation. Care to be taken with old systems
to ensure any black metallic iron oxide sludge and other
corrosive residues are removed, again by thoroughly
flushing, ensuring that the system is drained completely
from all low points.

5.1.3 Flow rate
The minimum flow rate through the boiler is obtained
from the following formula:
nominal heat output (kW) = m3/h
70
This minimum flow must be maintained for 5 minutes
after the burner stops firing to avoid high temperature
shut-down due to residual heat gain. Due to the design
and manufacture of the boiler no specific minimum water
flow requirement exists other than for over-temperature
protection.

NOTE: Please ensure that the new boiler plant is not
in circuit when the flushing takes place, especially if
cleansing chemicals are used to assist the process.

5.1.4 Water treatment
The system should be filled with mains cold water (for
the UK this will usually have a pH of between 7 and 8).
Pressurised installations with a boiler/system content
ratio of 1:10 or less should not require water treatment,
provided that the following conditions apply:
1. The system is flushed thoroughly to remove all fluxes
and debris and then filled completely once.
2. Make up water is limited to 5 % per annum.
3. The hardness of the water does not exceed 360 ppm
(20°D).
All scale deposits will reduce the efficiency of the boiler
and should be prevented. However provided the above
is complied with any scale produced will not be too
detrimental to the boiler efficiency and will not reduce
the anticipated life expectancy of the boiler.

Under no circumstances is the boiler to be operated
with cleaning chemicals in the system.

5.2 Economisers
ECO’s can be delivered upon request (for natural gas
only).
5.3 Flue gas discharge
For the discharge of the flue gases, chimney draught is
not required.
Tests have shown that very good combustion results are
obtained with zero draught at the boiler outlet.

NOTE: Scale deposits in excess of 3 to 5 mm will
reduce boiler efficiency and greatly increase the risk of
premature casting failure.

Remeha P 200
5.4 Noise production
The noise level taken at a distance of 1 m around the
boiler is approximately 70 to 85 dBA. The noise level
at the chimney outlet will, depending on load, type
of burner and chimney situation, vary from 70 to 90
dBA, measured at a distance of 1 m from the outlet. If
this noise production gives rise to problems in the immediate vicinity, then noise reducing or absorbing measures should be taken.
9

100

90
NR 90
80

dB re 2x10

-5

N/m

NR 80
70

NR 70
60
NR 60
50
NR 50
40

NR 40
30

NR 30
20

NR 20
10
31,5

The values that have been measured are averages
obtained from various measurements carried out at a
distance of approximately 1 m around the boiler and at a
height of approximately 1 m.

250

500

1000

2000

4000

8000

full load
part load

INSTALLATION REQUIREMENTS

6.1 Installation recommendations in the boiler
house
The necessary minimum installation space of the boiler
can be seen from Fig. 04

Fig. 04

125

frequency (Hz)

Fig. 03

Installation recommendations in the boiler house

04.15D.79.00001

Noise level readings without burner silencer

ASSEMBLY GUIDELINES AND INSTALLATION REQUIREMENTS

7.1 General
The Remeha boilers P 200 - 4 to 7 sections can be
delivered in individual parts or assembled.
The Remeha boilers P 200 - 8 to 12 sections are delivered in individual parts.
7.2 Water connections
The water connections are at the rear of the boiler.
The flow and return connections consist of threaded
male connections:
- 4 - 7 sections 1 ½” BSP
- 8 - 12 sections 2” BSP
Flange connections in accordance with DIN 2633 can
be delivered on request (Ø 70 mm ID). The return connection is provided with a G ¾” threaded hole in which
a drain off cock is fitted.
At the front of the boiler a flange is provided with 3 x G
½” threaded holes for the fitting of the thermostat
pockets.
7.3

Fig. 05 The boiler completely assembled in a crate and
on a pallet.

Delivery in individual parts

00.13C.79.00010, afb 1

7.3.1 General
The sizes of the boiler parts are such that they all can
enter the boiler house through a normal entrance.
The casing and equipment parts are delivered in packaged units. If necessary, the boiler can be put into
operation without casing. The casing can be added at a
later stage without dismantling the water connections.
On request the boiler can be delivered with adjustable
boiler feet (standard for assembled delivery 4 to 7 sections).
7.3.2 Boiler assembly
Assembly and installation of a boiler delivered in individual parts should only be undertaken by a recognized
and approved engineer and in accordance with the
assembly manual. Local regulations laid down by the
relevant authorites must be adhered to.

Fig. 06

The pallet dismantled and taken away

00.13C.79.00010, afb 2

7.4 Delivery assembled (4 to 7 sections only)
The boiler is delivered completely assembled in a crate
and on a pallet. Just the casings and the instrument
panel are delivered seperate in package units in the
crate. The boiler is delivered with adjustable boiler feet
(Fig. 05). By unscrewing the boiler feet, the boiler lifts
itself up from the pallet. The pallet can now be dismantled and taken away (Fig. 06). Now the boiler level can
be adjusted horizontally and in the right height (Fig. 07).
After the installation of the boiler, the casings and the
instrument panel can be fitted (figure 08).
If necessary, the boiler can be put into operation without
casing. The casing can be added at a later stage without
disconnecting the water connections.

Fig. 07
height

The boiler adjusted horizontal and at the right

00.13C.79.00010, afb 3

Remeha P 200

Fig. 08

Mounting casings and the instrument panel.

INSTRUMENT PANELS

8.1 Equipment contents
The panels contain all the necessary control and measuring instruments required to control the boiler. The connections have to be made on a terminal strip. The capillaries and sensor wires, which come from the control
panel, are placed in the instrument pockets that are
fitted at the front of the boiler.

See par. 8.2 for an instrument panel High/Low with hours
run meters. Several extra options can be built into the
panels.
Ask our technical departement.
8.2 Instrument panel High/Low with hours run
meters

Fig. 09

Layout of the instrument panel High/Low with hours run meters

00.03F.79.00004

1. Operating switch (On/Off)
2. Control thermostat; setting between 35°C - 95°C
3. High/Low thermostat; setting between 35°C - 95°C
4. Hours run meter total running hours
5. Hours run meter full load running hours
6. Analoque thermometer water temperature
7. High limit thermostat 110°C (lock out)
8. Lock out warning lamp
9. Option for rematic® weather compensator

Remeha P 200
8.3

Wiring diagram instrument panel High/Low with hours run meters 1

1.)

2.)

External control.
remove link; insert control pair (230 V)
External control High/Low.
remove link; insert control pair (230 V).1
Fig. 10

Wiring diagram instrument panel High/Low with hours run meters
12

COMMISSIONING

Note:
Commissioning to only be carried out by a qualified
engineer with the relevant training and certification i.e.
Acops-Corgi and a commissioning data sheet completed
on site for issue to owner.
9.1

9.2

9.2.1 Commissioning procedure
If the boiler is to be put into operation again following
a period of non-use, then the following procedure must
be carried out :
- Open the main oil cock.
- Switch the weather-compensator (if fitted) over to
manual operation ( h).
- Turn the thermostat to their highest setting.
- Switch on the circulation pump.
- Switch on the main switch.
- Switch on the operation switch in the instrument
panel.
- Consult burner manufacturer commissioning details.

Pressurized boiler with gas burner

9.1.1 Commissioning procedure
If the boiler is to be put into operation again following
a period of non-use, then the following procedure must
be carried out :
- Open the main gas cock.
- Switch the weather-compensator (if fitted) over to
manual operation (h).
- Turn the thermostats to their highest setting.
- Switch on the circulation pump.
- Switch on the main switch.
- Switch on the operation switch in the instrument
panel.
- Consult burner manufacturers commissioning details.

Warning
If the instrument panel is fitted with a weather compensator, set the programm switch to ‘manual’ position (h).
The following will now take place:
- The oil burner fan will start running so that during the
purging time the combustion chamber will be ventilated with the air damper fully opened.
- The air damper will then go into start position.
- Ignition flame lights up and is checked.
- Then the control box gives the all clear signal for the
burner to switch over to full load.

Warning
If the instrument panel is fitted with a weather compensator, set the programm switch to ‘manual’ position (h).
The following will now take place:
- The gas burner fan will start running so that during
the purging time the combustion chamber will be ventilated with the air damper fully opened.
- The air damper will then go into start position.
- Ignition flame lights up and is checked.
- Then the control box gives the all clear signal for the
burner to switch over to full load.

9.2.2 Putting out of operation
It is sufficient to switch off the operation switch on the
instrument panel. It is important that in the event of
work being carried out on the burner, the boiler/burner
unit must be completely electricaly isolated and the main
oil cock must be shut.

9.1.2 Putting out of operation
It is sufficient to switch off the operation switch on the
instrument panel. It is important that in the event of
work being carried out on the burner, the boiler/burner
unit must be completely electricaly isolated and the main
gas cock must be shut.

Pressurized boiler with oil burner

FAULT FINDING

High Limit thermostat lock out:
- Check the water circulation (circulation pump). Reset
the High Limit thermostat (Reset button is on the
instrument panel under the cover cap of the High
Limit thermostat).
- Advise the installer in the event of continued lock outs.

Remeha P 200
11

MAINTENANCE RECOMMENDATIONS

11.1 General
Depending on the operational conditions, the block and
the burner must be checked and cleaned at least once a
year for gas and at least twice a year for oil.
11.2 Maintenance instructions
Cleaning of the boiler:
- Put boiler out of operation.
- Open the front door, if necessary after dismantling the
burner.
- Remove the retarders (only for the 4 - 9 sections).
- Clean the combustion chamber and flue passes using
a suitable brush.
- Clean the removed retarders (4 - 9 sections).
- Remove the rear panel of the boiler and remove the
cleaning cover (underneath the smoke box).
- Vacuum clean the boiler and the combustion chamber.
- Renew the front door seals after cleaning the boiler.
- Re-assemble the removed parts and close the front
door.
- Re-assemble the burner (if dismantled).
- Check the boiler combustion side for leakage.
- Check the equipment for proper functioning and if
necessary re-adjust the control and safety equipment.
- Carry out combustion analysis.
- Check the water connections.

P 2 0 0
R e m e h a
Broag Ltd.
Head office
Remeha house
Molly Millars Lane
Wokingham,
Berkshire RG41 2QP
Tel.: 0118 978 3434
Fax: 0118 978 6977
E-mail address:
boilers@broag.ltd.uk.

Branch office
Unit 3, Kestrel Close,
Quarry Hill ind. Estate,
Ilkeston
Derbyshire DE7 4RD
Tel.: 0115 944 0778

© Copyright
All technical and technological infor-mation contained in these technical instructions,
as well as any drawings and technical descriptions furnished by us remain our property
and shall not be copied in part or whole without our prior consent in writing.

Subject to alterations
52988/1000/0202/Ips.

Fax: 0115 944 0588

3 0 0
P

Remeha P 300

R e m e h a

Technical Information

• Pressurized boiler
• Heat output: 278 - 709 kW

Remeha P 300
CONTENTS
Preface

Description of the unit
1.1 General
1.2 Burners

3
3
3

Construction data
2.1 General
2.2 Sections
2.3 Casing

3
3
3
3

Technical data and dimensions
3.1 Dimensions
3.2 Technical data
3.3 Quotation specifications

4
4
5
5

Output data
4.1 Boiler efficiency
4.2 Combustion efficiency

5
5
5

Application data
5.1 Hot water version
5.1.1 Water temperature
5.1.2 Water pressure
5.1.3 Flow rate
5.1.4 Water treatment
5.2 Economisers
5.3 Flue gas discharge
5.4 Noise production

6
6
6
6
6
6
6
6
7

Installation requirements
6.1 Installation recommendations in the boiler
house
6.2 Base details

7
7
7

Assembly guidelines and installation
requirements
7.1 General
7.2 Boiler assembly
7.3 Water connections

8
8
8
8

Instrument panel
8.1 Equipment contents
8.2 Lay out of the instrument panel
8.3 Wiring diagram instrument panel

8
8
8
9

10
10
10
10
10
10
10

10 Fault finding
10.1 High Limit thermostat lockout

11
11

11 Maintenance recommendations
11.1 General
11.2 Maintenance instructions

11
11
11

PREFACE
These technical instructions contain useful and important information for the correct operation and maintenance of the Remeha boiler, model P 300.
Read these instructions carefully before putting the
boiler into operation; familiarise yourself with its control
functions and operation, strictly observing the instructions given. Failure to do so may invalidate warranty or
prevent the boiler from operating.
A competent Engineer, with the relevant certification
(i.e. CORGI, ACOPS, IEE regs. etc) must carry out the
installation and commissioning of the boiler.
On completion a copy of the boiler log / commissioning
1

sheet should be returned to Broag Ltd for record purposes.
If you have any questions, or if you need more information about specific subjects relating to this boiler, or it's
installation please do not hesitate to contact us.
The data published in these technical instructions is
based on the latest information (at date of publication)
and may be subject to revisions.
We reserve the right to continuous development in both
design and manufacture, therefore any changes to the
technology employed may not be retrospective nor may
we be obliged to adjust earlier supplies accordingly.

DESCRIPTION OF THE UNIT

1.1 General
High efficiency pressurised boiler, suitable for use with
natural gas and light oil, by means of a pressure jet burner. Also available with a condensing unit (ECO)
(for natural gas only).
The boiler meets the requirements of the CE regulations
in the following directives:
- Gas appliance directive no. 90/396/EEC
- Electrical low voltage directive no. 73/23/EEC
- E.M.C. directive no. 89/336/EEC
- Efficiency directive no. 92/42/EEC.
Classification type for evacuation of the combustion products: B23.
2

1.2 Burners
In principle all pressure jet burners are suitable, subject
to prior adjustment to the boiler capacity and boiler construction.
The individual boiler satisfies inspection requirement for
central heating boilers.

CONSTRUCTION DATA

2.1 General
The boiler block consists of cast iron sections which are
assembled by means of tapered nipples. The boiler is
designed on the basis of the triple pass principle. The
boiler block is insulated with a 100 mm thick layer of
glass wool.

2.2 Sections
The sections are made of pearlitic cast iron. Weights
and measures of the sections:

Section

Measures

Weights

(H x W) mm

Front

1026 x 630

Intermediate

1026 x 640

106

Rear

1026 x 630

114

2.3 Casing
Steel casing, finished with a high quality insulation. The
front door is suitable for left or right opening as desired.
4

Remeha P 300
3

TECHNICAL DATA AND DIMENSIONS

3.1 Dimensions
Front view

Rear view

Flow Ø 100 (int.)

Flue gas connection Ø 300 (ext.)

Return Ø 100 (int.)

Side view

Flanges in accordance with BS4505 PN16

Fig. 01 Dimensions of the Remeha P 300
00.14C.79.00002

Sizes
No. of sections

Weight (dry) approx.

1200

1520

1170

1040

1350

1670

1320

1145

1500

1820

1470

1250

1650

1970

1620

1355

1800

2120

1770

1460

1950

2270

1920

1565

2100

2410

2070

1670

2250

2560

2220

1775

2400

2710

2370

1880

3.2 Technical data
No. of
sections

Output

Nominal heat
input

Combustion
chamber
resistance*

Combustion
gas side
contents

Waterresistance

 T=20°C  T=10°C

Water
contents

Flue
gas
flow
rate

m /h

mbar

liters

kg/h

0.43

146

485

1.4

0.48

163

576

425

1.9

0.53

180

663

538

484

2.4

0.58

197

756

192 - 491

603

542

3.4

0.63

108

214

846

210 - 543

665

598

4.0

0.68

136

231

933

233 - 596

728

655

4.5

0.73

168

248

1022

255 - 651

794

714

4.8

0.78

200

265

1115

278 - 709

862

775

5.0

0.83

228

282

1210

kWGCV

kWNCV

mbar

106 - 278

345

311

1.1

128 - 331

410

369

149 - 383

473

170 - 437

Gas
rate**

* Determined with 20% excess air
** G20 (NGA) = 34,0 MJ/m3 NCV
3.3 Quotation specifications
- Heat exchanger manufactured from corrosion resistant "pearlite" cast iron
- Maximum operating pressure of 6 bar
- Maximum operating temperature of 95°C
- Sectional design with three passes for max efficiency
and a generously sized combustion chamber for minimising NOX production
- Water cooled base and rear sections
- Large insulated door (hinged left or right) allowing
easy access for service operations
- Supplied in broken down form for ease of delivery
and site access
- Powder coated enamel steel casing
- 80 - 100 mm thick glass wool insulation
- Suitable for use with a Natural gas, and/or 35 sec oil
fired pressure jet burner (matched with most popular
burner manufacturers)
- Supplied as standard with on/off switch, temperature
indication, control and high limit thermostats
- Manufactured to ISO 9001
- CE approved.
4
OUTPUT DATA
5
4.1 Boiler efficiency
Up to 82.2% at Hs (91.3% at Hi) at full load and upto
87.0% at Hs (96.7% at Hi), at part load.
Average water temperature 70°C (80/60°C).

4.2 Combustion efficiency
Up to 82.6% at Hs (91.8% at Hi) at full load and 88.1%
at Hs (97.9% at Hi) at part load.
Note: Hi = NCV; Hs = GCV

Remeha P 300
5

APPLICATION DATA
As most systems contain a variety of metals which can
react with each other to cause corrosion. It is considered good practice to provide some form of water treatment (especially in open vented systems) in order to
prevent or reduce the following:
- Metallic corrosion;
- Formation of scale and sludge;
- Microbiological contamination;
- Chemical changes in the untreated system water.

5.1 Hot water version
5.1.1 Water temperature
Maximum water temperature is 110°C.
The minimum acceptable return water temperature is,
both for gas and oil fired boilers 40°C, at a flow rate corresponding to a ∆T of 20°C at nominal heat output.
5.1.2 Water pressure
Maximum pressure 6 bar. The boiler is suitable for open
and sealed systems up to a maximum pressure of 6 bar
and a minimum pressure of 0.8 bar. Installation of the
boiler on rooftop or in basement is possible.

Suitable chemicals and their use should be discussed
with a specialist water treatment company prior to carrying out any work. The specification of the system and
manufacturers recommendations must be taken into
account, along with the age and condition of the system.
New systems should be flushed thoroughly to remove all
traces of flux, debris, grease and metal swarf generated
during installation. Care to be taken with old systems to
ensure any black metallic iron oxide sludge and other
corrosive residues are removed, again by thoroughly
flushing, ensuring that the system is drained completely
from all low points.

5.1.3 Flow rate
The minimum flow rate through the boiler is obtained
from the following formula:
Nominal heat output (kW) = m3/h
70
This minimum flow must be maintained for 5 minutes
after the burner stops firing to avoid high temperature
shut-down due to residuel heat gain. Due to the design
and manufacture of the boiler no specicific minimum
water flow requirement exists other than for over temperature protection.

Note: Please ensure that the new boiler plant is not in
circuit when the flushing takes place, especially if cleaning chemicals are used to assist the process.
Under no circumstances is the boiler to be operated
with cleaning chemicals in the system.

5.1.4 Water treatment
The system should be filled with mains cold water (for
the UK this will usually have a pH of between 7 and 8).
Pressurised installations with a boiler/system content
ratio of 1:10 or less should not require water treatment,
provided that the following conditions apply:
1. The system is flushed thoroughly to remove all fluxes
and debris and then filled completely once.
2. Make up water is limited to 5% per annum.
3. The hardness of the water does not exceed 360 ppm
(20°D).
All scale deposits will reduce the efficiency of the boiler
and should be prevented. However provided the above
is complied with any scale produced will not be too detrimental to the boiler efficiency and will not reduce the
anticipated life expectancy of the boiler.

To summarise:
- Minimise water loss;
- Prevent pumping over in open vented systems;
- Provide adequate air venting at all high points;
- Keep pH level between 7 - 9 when using additives;
- Maximum chlorine content of 200 mg/l;
- Take advice on the suitability of inhibitors.
5.2 Economisers
ECO's can be delivered upon request (for natural gas
only). For specifications please refer to Technical information ECO 13/14/15.
5.3 Flue gas discharge
For the discharge of the flue gases, chimney draught is
not required.
Tests have shown that very good combustion results are
obtained with zero draught at the boiler outlet.

Note: Scale deposits in excess of 3 to 5 mm will reduce
boiler efficiency and greatly increase the risk of premature casting failure.

5.4 Noise production
The noise level taken at a distance of 1 m around the
boiler is approx. 70 to 90 dBA. The noise level at the
chimney outlet will, depending on load, type of burner
and chimney situation, vary from 70 to 90 dBA, taken at
a distance of 1 m from the outlet. If this noise production
gives rise to problems in the immediate vicinity, then
noise reducing or absorbing measures should be taken.

N/m

100

dB re 2X10

-5

NR 90
80

NR 80
70

The values that have been taken for the graph in Fig.
02, are averages obtained from various measurements
carried out at a distance of approx. 1 m around the boiler and at a height of approx.1 m.

NR 70
60

NR 60
50
31,5

125

250

500

1000

2000

4000

8000

Frequency (Hz)

full load
part load

Remeha P300 met Monarch-brander
(zonder geluiddempkap)

Fig. 02 Noise measurement Remeha P 300 without
noise silencer
00.14C.79.00010

INSTALLATION REQUIREMENTS

6.1 Installation recommendations in the boiler
house
The necessary minimum installation space of the boiler
can be seen from Fig. 03.

6.2 Base details

free access
for service

gas train

free access
for service to
rear of boiler

Fig. 03 Installation space of the Remeha P300

Fig. 04 Base details
00.14B.78.00001

* 50 mm with vibration damper
7

Number of
sections

8
9

1200
1350

10
11

1500
1650

12
13

1800
1950

14
15

2100
2250

2400

Remeha P 300
7

ASSEMBLY GUIDELINES AND INSTALLATION REQUIREMENTS

7.1 General
The Remeha P 300 boiler is delivered in individual sections. The sizes are such that all parts can enter the boiler house through a normal door entrance. The casing
and equipment parts are delivered in packaged units. If
necessary, the boiler can be put into operation without
casing. The casing can be added at a later stage without disconnecting the water connections.

7.3 Water connections
The water connections are at the rear of the boiler. The
flow and return connections consist of flanged connections in accordance with DIN 2633. The top flange at
the front of the boiler is provided with 3 x R 1⁄2” threaded
holes for the fitting of the thermostat pockets. The return
connection is provided with a R 3⁄4” threaded hole in
which a drain off cock is fitted.

7.2 Boiler assembly
Assembly and installation of the boiler may only be carried out by a recognised and approved engineer and in
accordance with the assembly manual. Local regulations
laid down by the relevant authorities must be adhered
to.
8

INSTRUMENT PANEL

8.1 Equipment contents
The panel contains all the necessary control and
measuring instruments required to control the boiler. The
connections have to be made on a terminal strip. The
capillaries and sensor wires, which come from the control panel, are placed in the instrument pockets that are
fitted at the front of the boiler. Several extra options can
be built into the panels. Ask our technical department.
8.2 Lay out of the instrument panel

Fig. 05 Layout of the instrument panel High/Low with hour run meters
00.03F.79.00004

1. Operating switch (On/Off).
2. Control thermostat. Setting between 35°C - 90°C.
3. High/Low thermostat. Setting between 35°C - 90°C.
4. Hours run meter total running hours.
5. Hours run meter full load running hours.
6. Analogue thermometer water temperature.
7. High limit thermostat 110°C (locking).
8. Central warning light.
9. Option for rematic® weather compensator.
9

BM
BS
CA
DS
F

Fig. 06 Wiring diagram instrument panel

04.13C.SC.00004

5-4

5-5

T
2

T
3

Tmx 1

37
36

Connector
Will not be supplied (optional)

4-4
CA3

4-2
CA1

H
K
P
Tmx
TR

1-1 1-2 1-3

F2
6,3AT

F1
6,3AT

Operating signals (Volt free)
Burner switch
General warning signals
Water level switch
Fuse

Power supply 230V-50Hz

ye/gn

Terminal strip
Cord color/number

bk6

CA
4-9

9-1

Disturbance light burner locked
Auxilairy relay
Hour run counter
High limit thermostat
Control thermostat

1
2

4-1 (CA)

7-4

7-3

bk5

9-2

1
T
C

10
11
12

9-4

CA4
4-5
18

2-4

2-3

3-2

2.)

TR2
23

3-1

24
25

9-10 9-13

bk2

3-5

9-16

11 k1

12 14

3-4

9-17

3-3

9-18

Connector burner high

* Optional

BM
high
4-7

9-15

bk1

04.13C.SC.00004.

Remove link; insert control pair (230V)

BM
low
4-8

9-8

bk3

2.)2.)
External
control
H/Lhigh-low
External
signal

1.)

9-11

bk4

Optional
Remove link; *insert
control pair (230V)

17
16
15
14
13

9-6

bk2

1.) External Control
ON/OFF
signal on-off
1.) External

TR1

2-1

2-2

6-2

6-3

bk1

Connector burner low

8.3 Wiring diagram instrument panel

Remeha P 300
9

COMMISSIONING

Note: Commissioning to only be carried out by a qualified engineer with the relevant training and certification
i.e. Acops - Corgi and a commissioning data sheet completed on site for issue to owner

9.2 Pressurized boiler with oil burner
9.2.1 Commissioning procedure
If the boiler is to be put into operation again following a
period of non-use, then the following procedure must be
carried out:
- Open the main oil cock.
- Switch the weather-compensator (if fitted) over to
manual operation (h).
- Turn the thermostat to their highest setting.
- Switch on the circulation pump.
- Switch on the main switch.
- Switch on the operation switch in the instrument
panel.
- Consult burner manufacturer commissioning details.

9.1 Pressurized boiler with gas burner
9.1.1 Commissioning procedure
If the boiler is to be put into operation again following a
period of non-use, then the following procedure must be
carried out:
- Open the main gas cock.
- Switch the weather-compensator (if fitted) over to
manual operation (h).
- Turn the thermostats to their highest setting.
- Switch on the circulation pump.
- Switch on the main switch.
- Switch on the operation switch in the instrument
panel.
- Consult burner manufacturers commissioning details.

Warning:
If the instrument panel is fitted with a weather compensator, set the program switch to ‘manual’ position (h).
The following will now take place:
- The oil burner fan will start running so that during the
purging time the combustion chamber will be ventilated with the air damper fully opened.
- The air damper will then go into start position.
- Ignition flame lights up and is checked.
- Then the control box gives the all clear signal for the
burner to switch over to full load.

Warning:
If the instrument panel is fitted with a weather compensator, set the program switch to ‘manual’ position (h).
The following will now take place:
- The gas burner fan will start running so that during
the purging time the combustion chamber will be ventilated with the air damper fully opened.
- The air damper will then go into start position.
- Ignition flame lights up and is checked.
- Then the control box gives the all clear signal for the
burner to switch over to full load.

10 FAULT FINDING
11Faul
10.1 High Limit thermostat lockout
- Check the water circulation (circulation pump). Reset
the High Limit thermostat (‘reset’ button is on the
instrument panel under the cover cap of the High
Limit thermostat).
- Advise the installer in the event of continued lock
outs.
11

MAINTENANCE RECOMMENDATIONS

11.1 General
Depending on the operating conditions, the block and
the burner must be checked and cleaned one or more
times a year.
11.2 Maintenance instructions
- Cleaning of the boiler:
- Put boiler out of operation.
- Open the front door, if necessary after
dismantling the burner.
- Remove the retarders.
- Clean the combustion chamber and flue
passes using a suitable brush.
- Clean the removed retarders.
- Remove the rear panel of the boiler and
remove the cleaning cover (underneath the
smoke box).
- Vacuum clean the boiler and the combustion
chamber.
- Renew the front door seals after cleaning the
boiler.
- Re-assemble the removed parts and close
the front door.
- Re-assemble the burner (if dismanteld).
- Check the boiler combustion side for leakage.
- Check the equipment for proper functioning and if
necessary re-adjust the gas control and safety
equipment.
- Check combustion by means of combustion gas
analyses.
- Check the water connections.

3 0 0
P
R e m e h a
Broag Ltd.
Head office
Remeha house,
Molly Millars Lane,
Wokingham,
Berkshire RG41 2QP.
Tel.

0118 9783434

Fax

0118 9786977

E-mail:

boilers@broag-remeha.com

Internet: uk.remeha.com

Branch office
Unit 3, Kestrel Close,
Quarry Hill Ind. Estate,
Ilkeston
© Copyright
All technical and technological information contained in these technical instructions,
as well as any drawings and technical descriptions supplied, remain our
property and shall not be multiplied without our prior consent in writing.
Ours is a policy of continuous development. We reserve the right to alter
specifications without prior notification.

Subject to alterations
52754/1000/0402/Ip.

Derbyshire DE7 4RD
Tel.

0115 9440778

Fax

0115 9440588

P 5 0 0

Remeha P 500

R e m e h a

Technical information

• Pressurized boiler
• Heat output: 635 - 1900 kW

Remeha P 500
TABLE OF CONTENT
Preface

Description of the unit
1.1 General
1.2 Burners

3
3
3

Construction data
2.1 General
2.2 Sections
2.3 Casing

3
3
3
3

Technical data and dimensions
3.1 Dimensions
3.2 Technical data
3.3 Quotation speciﬁcations

4
4
4
5

Output data
4.1 Boiler efﬁciency
4.2 Combustion efﬁciency

5
5
5

Application data
5.1 L.P.H.W. version
5.1.1 Water temperature
5.1.2 Water pressure
5.1.3 Flow rate
5.1.4 Water treatment
5.2 Economisers
5.3 Flue gas discharge
5.4 Noise production

5
5
5
5
5
6
6
6
6

Installation requirements
6.1 Installation recommendations in the boiler
house

Assembly guidelines and installation
requirements
7.1 General
7.2 Water connections
7.3 Boiler assembly
Instrument panels
8.1 Equipment contents
8.2 Instrument panel High/Low with hours run
meters
8.3 Wiring diagram instrument panel High/Low
with hours run meters 1
Commissioning
9.1 Pressurized boiler with gas burner
9.1.1 Commissioning procedure
9.1.2 Putting out of operation
9.2 Pressurized boiler with oil burner
9.2.1 Commissioning procedure
9.2.2 Putting out of operation

7
7
7
7
8
8
8
9
10
10
10
10
10
10
10

10 Fault Finding

11 Maintenance recommendations
11.1 General
11.2 Maintenance instructions

11
11
11

PREFACE
These technical instructions contain useful and important information for the correct operation and maintenance of the Remeha boiler, model P200
Read these instructions carefully before putting the boiler into operation; familiarise yourself with its control
functions and operation, strictly observing the instructions given. Failure to do so may invalidate warranty or
prevent the boiler from operating.
A competent Engineer, with the relevant certiﬁcation (i.e.
CORGI, ACOPS, IEE regs. etc) must carry out the installation and commissioning of the boiler.
On completion a copy of the boiler log / commissioning
sheet should be returned to Broag Ltd for record purposes.

If you have any questions, or if you need more information about speciﬁc subjects relating to this boiler, or it’s
installation please do not hesitate to contact us.
The data published in these technical instructions is
based on the latest information (at date of publication)
and may be subject to revisions.
We reserve the right to continuous development in both
design and manufacture, therefore any changes to the
technology employed may not be retrospective nor may
we be obliged to adjust earlier supplies accordingly.

1 DESCRIPTION OF THE UNIT
1.2 Burners
In principle all CE-approved pressure jet burners are suitable, subject to prior adjustment to the boiler capacity
and boiler construction. The individual boiler satisﬁes
inspection requirement for central heating boilers.

1.1 General
High efﬁciency pressurised boiler, suitable for use with
natural gas and light oil, by means of a pressure jet
burner. Also available with a condensing unit (ECO) (for
natural gas only).
The boiler meets the requirements of the CE regulations
in the following directives:
- Gas appliance directive no. 90/396/EEC
- Electrical low voltage directive no. 73/23/EEC
- E.M.C. directive no. 89/336/EEC
- Efﬁciency directive no. 92/42/EEC.
Classiﬁcation type for evacuation of the combustion products: B23.

2 CONSTRUCTION DATA
2.1 General
The boiler block consists of cast iron sections, which are
assembled by means of tapered nipples. The boiler is a
three-pass design. The boiler block is insulated with a
100-mm thick layer of glass wool.
2.2 Sections
The sections are made of pearlitic cast iron.
Weights and measures of the sections:
- Front section:
220 kg H x W = 1252 x 1130mm
- Intermediate section: 250 kg H x W = 1238 x 1130 mm
- Rear section:
250 kg H x W = 1238 x 1130 mm
2.3 Casing
Steel casing, ﬁnished with a high-quality insulation. The
front door is suitable for left or right opening as desired.
Fig. 01
IL50

Remeha P500

Remeha P 500
3 TECHNICAL DATA AND DIMENSIONS
3.1

Dimensions

Side view

Front view

Rear view

Flow NG 150 - DIN2633
Return NG 150 - DIN2633
Flue ØD ext.
Flanges in accordance with BS 4505 PN 16
Fig. 02

Dimensions

00.15D.79.00006

3.2

Technical data
Number of sections

Nominal heat output

635

750

865

980

1095 1210

1325 1440

1555 1670

1785 1900

Hi /
NCV

706

834

962

1090

1218 1341

1468 1592

1719 1846

1973 2100

Hs /
GCV

784

926

1068 1210

1352 1488

1630 1767

1908 2049

2190 2331

1350 1500

1650 1800

1950 2100

2250 2400

2550 2700

2850 3000

1660 1810

1965 2115

2265 2415

2565 2715

2870 3020

3170 3320

1270 1420

1570 1720

1870 2020

2170 2320

2470 2620

2770 2920

ØD

400

500

mbar

149

166

180

194

189

200

213

234

262

295

337

382

mbar

litre

495

550

605

660

715

770

825

880

935

990

Nominal
heat input

Dimensions

∆t=
Water
resistance

10°C
∆t=
20°C

Water contents

1045 1100

Boiler weight (dry)

Combustion chamber
mbar
1)
resistance
Combustion gas side
content
Flue gas flow rate

kg/h

2650 2910

3175 3435

3695 3955

4220 4480

4740 5005

5265 5525

1.7

2.3

3.0

3.8

3.9

4.8

5.0

5.9

5.5

6.0

6.5

7.0

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

1102 1302

1502 1702

1901 2081

2292 2485

2683 2882

3080 3278

Table 01
Technical data
1)
Determined with 20 % excess air.
3.3 Quotation speciﬁcations
- Heat exchanger manufactured from corrosion resistant “pearlite” cast iron
- Maximum operating pressure of 6 bar
- Maximum operating temperature of 95°C
- Sectional design with three passes for max efﬁciency
(gross 83%) and a generously sized combustion
chamber for minimising NOX production
- Water cooled base and rear sections
- Large insulated door (hinged left or right) allowing
easy access for service operations
- Supplied in broken down form for ease of delivery and
site access

- Powder coated enamel steel casing
- 80 - 100 mm thick glass wool insulation
- Suitable for use with a Natural gas, and/or 35 sec oil
ﬁred pressure jet burner (matched with most popular
burner manufacturers)
- Supplied as standard with on/off switch, temperature
indication, control and high limit thermostats
- Efﬁciency 83% (Hs - GCV)
- Manufactured to ISO 9001
- CE approved.

4 OUTPUT DATA
4.1 Boiler efﬁciency
Up to 90.2 % at Hi (81.3 % at Hs) at full load and up to
92.5 % at Hi (83.3 % at Hs) at part load.
Average water temperature 70°C (80/60°C).

4.2 Combustion efﬁciency
Up to 91.2 % at Hi (82.2 % at Hs) at full load and up to
95.5 % at Hi (86.0 % at Hs) at part load.
Note: Hi = NCV; Hs = GCV

5 APPLICATION DATA
5.1

L.P.H.W. version

5.1.3 Flow rate
The minimum ﬂow rate through the boiler is obtained
from the following formula:

5.1.1 Water temperature
Maximum water temperature is 110°C.
The minimum acceptable return water temperature is,
both for gas and oil ﬁred boilers 40°C, at a ﬂow rate
corresponding to a ∆t of 20°C at nominal heat output.

Nominal heat output (kW) = m3/h
70
This minimum ﬂow must be maintained for 5 minutes
after the burner stops ﬁring to avoid high temperature
shutdown due to residual heat gain. Due to the design
and manufacture of the boiler no speciﬁc minimum water
ﬂow requirement exists other than for over-temperature
protection.

5.1.2 Water pressure
Maximum pressure 6 bar.
The boiler is suitable for open and sealed systems up
to a maximum pressure of 6 bar and a minimum pressure of 0.8 bar. The boiler is suitable for installation in
basement or rooftop boiler houses.

Remeha P 500
5.2 Economisers
ECO’s can be delivered upon request (for natural gas
only). For speciﬁcations please refer to Technical information ECO 13/14/15.

5.1.4 Water treatment
The system should be ﬁlled with mains cold water (for
the UK this will usually have a pH of between 7 and 8).
Pressurised installations with a boiler/system content
ratio of 1:10 or less should not require water treatment,
provided that the following conditions apply:
1. The system is ﬂushed thoroughly to remove all ﬂuxes
and debris and then ﬁlled completely once.
2. Make up water is limited to 5 % per annum.
3. The hardness of the water does not exceed 360 ppm
(20°D).
All scale deposits will reduce the efﬁciency of the boiler
and should be prevented. However provided the above
is complied with any scale produced will not be too
detrimental to the boiler efﬁciency and will not reduce
the anticipated life expectancy of the boiler.

5.3 Flue gas discharge
For the discharge of the ﬂue gases, chimney draught is
not required.
Tests have shown that very good combustion results are
obtained with zero draught at the boiler outlet.
5.4 Noise production
The noise level taken at a distance of 1 m around the
boiler is approximately 75 to 90 dBA. The noise level
at the chimney outlet will, depending on load, type of
burner and chimney situation, vary from 75 to 90 dBA,
measured at a distance of 1 m from the outlet. If
this noise production gives rise to problems in the immediate vicinity, then noise reducing or absorbing measures should be taken.

NOTE: Scale deposits in excess of 3 to 5 mm will
reduce boiler efﬁciency and greatly increase the risk of
premature casting failure.
As most systems contain a variety of metals which can
react with each other to cause corrosion. It is considered good practice to provide some form of water treatment (especially in open vented systems) in order to
prevent or reduce the following:
- Metallic corrosion;
- Formation of scale and sludge;
- Microbiological contamination;
- Chemical changes in the untreated system water.

100

dB re 2x10

-5

N/m

NR 90

Suitable chemicals and their use should be discussed
with a specialist water treatment company prior to carrying out any work. The speciﬁcation of the system
and manufacturers recommendations must be taken into
account, along with the age and condition of the system.
New systems should be ﬂushed thoroughly to remove all
traces of ﬂux, debris, grease and metal swarf generated
during installation. Care to be taken with old systems
to ensure any black metallic iron oxide sludge and other
corrosive residues are removed, again by thoroughly
ﬂushing, ensuring that the system is drained completely
from all low points.

NR 80

NR 70

NR 60

NOTE: Please ensure that the new boiler plant is not
in circuit when the ﬂushing takes place, especially if
cleansing chemicals are used to assist the process.

50
31,5

125

250

500

1000

2000

4000

8000

frequency (Hz)
full load
part load

Under no circumstances is the boiler to be operated
with cleaning chemicals in the system.

9
Fig. 03

The values that have been taken are averages obtained
from various measurements carried out at a distance of
approximately 1 m around the boiler and at a height of
approximately 1 m.

Noise level readings without burner silencer

6 INSTALLATION REQUIREMENTS
6.1 Installation recommendations in the boiler
house
The necessary minimum installation space of the boiler
can be seen from Fig. 04.

Number
of
sections

A
mm

1350

1500

1650

1800

1950

2100

2250

2400

2550

2700

2850

3000

H = 80mm without vibration damper
H = 120mm with vibrationdamper
Fig. 04
house

Installation recommendations in the boiler

Fig. 05

Base details

00.15A.78.00001

04.15D.79.00001

7 ASSEMBLY GUIDELINES AND INSTALLATION REQUIREMENTS
At the front of the boiler a ﬂange is provided with 2
x G ½” threaded holes for the ﬁtting of the thermostat
pockets.

7.1 General
The Remeha boiler P 500 is delivered in individual parts.
The sizes of the boiler parts are such that they all can
enter the boiler house through a normal entrance.
The casing and equipment parts are delivered in packaged units. If necessary, the boiler can be put into
operation without casing. The casing can be added at a
later stage without dismantling the water connections.

7.3 Boiler assembly
Assembly and installation of a boiler delivered in individual parts should only be undertaken by a recognised
and approved engineer and in accordance with the
assembly manual. Local regulations laid down by the
relevant authorities must be adhered to.

7.2 Water connections
The water connections are at the rear of the boiler.
The ﬂow and return connections consist of a ﬂanged
ﬂow elbow and a ﬂanged return connection in accordance with DIN 2633. The return connection is provided
with a G ¾” threaded hole in which a drain off cock is
ﬁtted.
7

Remeha P 500
8 INSTRUMENT PANELS
8.1 Equipment contents
The panels contain all the necessary control and measuring instruments required to control the boiler. The connections have to be made on a terminal strip. The capillaries and sensor wires, which come from the control
panel, are placed in the instrument pockets that are
ﬁtted at the front of the boiler.

See par. 8.2 for an instrument panel High/Low with hours
run meters. Several extra options can be built into the
panels.
Ask our technical department.
8.2 Instrument panel High/Low with hours run
meters

Fig. 06

Layout of the instrument panel High/Low with hours run meters

00.03F.79.00004

8.3
3

Wiring diagram instrument panel High/Low with hours run meters 1

2.)

1.)

External control High/Low.
remove link; insert control pair (230 V).1

External control.
remove link; insert control pair (230 V)

Fig. 07

Wiring diagram instrument panel High/Low with hours run meters

04.13C.SC.00001

Remeha P 500
9 COMMISSIONING
Note:
Commissioning to only be carried out by a qualiﬁed
engineer with the relevant training and certiﬁcation i.e.
Acops-Corgi and a commissioning data sheet completed
on site for issue to owner.
9.1

9.2

Pressurized boiler with oil burner

9.2.1 Commissioning procedure
If the boiler is to be put into operation again following
a period of non-use, then the following procedure must
be carried out :
- Open the main oil cock.
- Switch the weather-compensator (if ﬁtted) over to
manual operation (h).
- Turn the thermostat to their highest setting.
- Switch on the circulation pump.
- Switch on the main switch.
- Switch on the operation switch in the instrument
panel.
- Consult burner manufacturer commissioning details.

Pressurized boiler with gas burner

9.1.1 Commissioning procedure
If the boiler is to be put into operation again following
a period of non-use, then the following procedure must
be carried out :
- Open the main gas cock.
- Switch the weather-compensator (if ﬁtted) over to
manual operation (h).
- Turn the thermostats to their highest setting.
- Switch on the circulation pump.
- Switch on the main switch.
- Switch on the operation switch in the instrument
panel.
- Consult burner manufacturers commissioning details.

Warning
If the instrument panel is ﬁtted with a weather compensator, set the program switch to ‘manual’ position (h).
The following will now take place:
- The oil burner fan will start running so that during the
purging time the combustion chamber will be ventilated with the air damper fully opened.
- The air damper will then go into start position.
- Ignition ﬂame lights up and is checked.
- Then the control box gives the all clear signal for the
burner to switch over to full load.

Warning
If the instrument panel is ﬁtted with a weather compensator, set the program switch to ‘manual’ position (h).
The following will now take place:
- The gas burner fan will start running so that during
the purging time the combustion chamber will be ventilated with the air damper fully opened.
- The air damper will then go into start position.
- Ignition ﬂame lights up and is checked.
- Then the control box gives the all clear signal for the
burner to switch over to full load.

9.2.2 Putting out of operation
It is sufﬁcient to switch off the operation switch on the
instrument panel. It is important that in the event of
work being carried out on the burner, the boiler/burner
unit must be completely electrically isolated and the
main oil cock must be shut.

9.1.2 Putting out of operation
It is sufﬁcient to switch off the operation switch on the
instrument panel. It is important that in the event of
work being carried out on the burner, the boiler/burner
unit must be completely electrically isolated and the
main gas cock must be shut.5

10 FAULT FINDING
High Limit thermostat lock out:
- Check the water circulation (circulation pump). Reset
the High Limit thermostat (Reset button is on the
instrument panel under the cover cap of the High
Limit thermostat).
- Advise the installer in the event of continued lockouts.

11 MAINTENANCE RECOMMENDATIONS
11.1 General
Depending on the operational conditions, the block and
the burner must be checked and cleaned at least once a
year for gas and at least twice a year for oil.

- Vacuum clean the boiler and the combustion chamber.
- Renew the front door seals after cleaning the boiler.
- Re-assemble the removed parts and close the front
door.
- Re-assemble the burner (if dismantled).
- Check the boiler combustion side for leakage.
- Check the equipment for proper functioning and if
necessary re-adjust the control and safety equipment.
- Carry out combustion analysis.
- Check the water connections.

11.2 Maintenance instructions
Cleaning of the boiler:
- Put boiler out of operation.
- Open the front door, if necessary after dismantling the
burner.
- Remove the retarders (only for the 9 - 16 sections).
- Clean the combustion chamber and ﬂue passes using
a suitable brush.
- Clean the removed retarders ( 9 - 16 sections).
- Remove the rear panel of the boiler and remove the
cleaning cover (underneath the smoke box).

P 5 0 0
R e m e h a
Broag Ltd.
Head office
Remeha house
Molly Millars Lane
Wokingham,
Berkshire RG41 2QP
Tel.: 0118 978 3434
Fax: 0118 978 6977
E-mail address:
boilers@broag-remeha.com

Branch office
Unit 3, Kestrel Close,
Quarry Hill ind. Estate,
Ilkeston

© Copyright
All technical and technological information contained in these technical instructions,
as well as any drawings and technical descriptions furnished by us remain our
property and shall not be copied in part or whole without our prior consent in writing.

Subject to alterations
52881/1000/0202/Ips.

Derbyshire DE7 4RD
Tel.: 0115 944 0778
Fax: 0115 944 0588

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