Sime ECOMFORT PLUS 25 HE User guide

ECOMFORT

PLUS 25 HE

Installation and

servicing instructions

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

All descriptions and illustrations provided in this manual have been carefully prepared but we reserve the right to make changes

and improvements in our products that may affect the accuracy of the information contained in this manual.

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

The Benchmark Scheme

Sime Ltd is a licensed member of the Benchmark Scheme which aims to improve the standards of installation and

commissioning of domestic heating and hot water systems in the UK and to encourage regular servicing to optimi-

se safety, efficiency and performance.

Benchmark is managed and promoted by the Heating and Hotwater Industry Council.

For more information visit www.centralheating.co.uk

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

Ecomfort Plus 25 HE:

Gas Council number 47-283-13

These appliances comply with the S.E.D.B.U.K. scheme, band “A”

CONTENTS

1 DESCRIPTION OF THE BOILER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 7

2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 11

3 CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 17

4 USE AND MAINTENANCE (including BENCHMARK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 20

5 FAULT FINDING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 25

6 REPLACEMENT OF PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 28

7 EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 30

SIME COMBINATION BOILERS

Installer checklist

Please remember to carry out the following checks after installation. This will achieve complete customer satisfaction,

and avoid unnecessary service calls. A charge will be made for a service visit where the fault is not due to a manufac-

turing defect.

– Has a correct by-pass been fitted and adjusted?

– Has the system and boiler been flushed?

– Is the system and boiler full of water, and the correct pressure showing on the pressure gauge?

– Is the Auto Air Vent open?

–Has the pump been rotated manually?

– Is the gas supply working pressure correct?

– Is the boiler wired correctly? (See installation manual).

–Has the D.H.W. flow rate been set to the customer requirements?

– Has the customer been fully advised on the correct use of the boiler, system and controls?

– Has the Benchmark Checklist in the use and maintenance section of this manual been completed?

–Has the Aquaguard Filter been cleaned (see 4.9)?

–Has the condensate trap been filled (see section 2)?

IPX4D

Please refer to commissioning instructions for filling in the checklist of this installation guide.

Note: All Gas Safe registered installers carry a ID Card.

You can check your installer is Gas Safe Registered by calling 0800 408 5577

Important Information

IT IS A STATUTORY REQUIREMENT THAT ALL GAS APPLIANCES ARE INSTALLED BY COMPETENT PERSONS, IN

ACCORDANCE WITH THE GAS SAFETY (INSTALLATION AND USE) REGULATIONS (CURRENT EDITION). The manu-

facturer’s instructions must not be taken as overriding any statutory requirements, and failure to comply with these

regulations may lead to prosecution.

No modifications to the appliance should be made unless they are fully approved by the manufacturer.

GAS LEAKS: DO NOT OPERATE ANY ELECTRICAL SWITCH, OR USE A NAKED FLAME. TURN OFF THE GAS SUPPLY

AND VENTILATE THE AREA BY OPENING DOORS AND WINDOWS CONTACT THE GAS EMERGENCY SERVICE ON

0800111999.

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

Dealing with Condensate

Five suitable drainage points

1. Internal drain stack pipe

2. Waste water pipe *

3. External drain or gully *

4. Rainwater hoppers that carry both rain water and foul water *

5. Purpose-made soakaways

* Care should be taken not to contaminate any “Grey Water Systems”

Pipework

Condensate pipework should be plastic, same as used for standard wastewater plumbing.

Similarly the drainage system where the condensate discharges to should also be resistant to the acidic conden-

sate.

Connection to the internal trap in the boiler can be achieved by using a 20mm solvent weld socket.

Pipework should be kept as short as possible.

External runs should be avoided, but when necessary be a minimum of 3 meters in 32mm diameter pipework and

lagged to avoid freezing, this also applies to pipe runs in unheated areas such as garages.

To reduce the possibility of condensate being trapped in the pipe, the number of bends should be kept to a minimum.

Pipework must be angled down from the boiler with a fall of at least 2.5.

The pipework must be supported at a distance of 0.5m for inclined runs and 1.0m for vertical runs.

Condensate traps

Where the condensate drain is not sealed to the discharge connection a trap will be required. The water seal should

be 38mm or more for external discharge and 75mm or more for internal discharge. When connecting to a exter-

nal stack the trap should be located within the building.

Stack Pipes

Condensate connections should be at least 450mm above any bend at the bottom of a stack pipe in a single or multi-

story dwelling up to 3 storeys.

There are specific requirements when connecting to a stack pipe serving

multi-storey buildings greater than 3 storeys.

All connections to stack pipes should avoid across flow between other Branch pipes.

Soakaways

Any soakaways have to be purpose-made and located as close to the boiler as possible, but clear of the buildings

foundations and any buried services. The best option is to purchase a soakaway from a drainage manufacturer and

install it to the manufacturers recommendation.

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

1.1 INTRODUCTION

“ECOMFORT PLUS 25 HE” is a boiler that

has a condensing heat exchanger down-

stream from the fan to allow the heat con-

tained in exhaust fumes to be recovered.

The boiler is equipped as standard with

frost protection and circulating pump anti-

jamming system.

The instructions given in this manual are

provided to ensure proper installation and

correct operation of the appliance.

1 DESCRIPTION OF THE BOILER

70 70 70 70

125 60

335

450

245 165

ø 60/100

700

1.2 DIMENSIONS

TABLE 1 - Connections “ECOMFORT PLUS 25 HE”

R C.H. return 22 mm Compression

M C.H. flow 22 mm Compression

G Gas connection 15 mm Compression

E D.H.W. inlet 15 mm Compression

U D.H.W. outlet 15 mm Compression

S3 Condensation outlet ø 20

TABLE 2 - Minimum clearances

For ventilation For servicing

ABOVE THE APPLIANCE CASING 400 mm 300 mm

AT THE R.H.S. 15 mm 15 mm

AT THE L.H.S. 15 mm 15 mm

BELOW THE APPLIANCE CASING 200 mm 200 mm

IN FRONT OF THE APPLIANCE 100 mm 500 mm

Fig. 1

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

1.3 TECHNICAL FEATURES

ECOMFORT PLUS 25 HE

Heat output nominal (80-60°C) kW 25.0

Heat output nominal (50-30°C) kW 27.2

Heat output minimum (80-60°C) kW 9.6

Heat output minimum (50-30°C) kW 10.2

Heat input nominal kW 25.5

Heat input minimum kW 10.2

Efficiency min./nom. output (80-60°C) % 94.2/98.3

Efficiency min./nom. output (50-30°C) % 100.0/106.8

Seasonal efficiency rating (SEDBUK) (A)

Termal efficiency (CEE 92/42 directive) ★★★★

Class NOx 3

Smokes temperature maximum (80-60°C) °C 60

Smokes temperature minimum (80-60°C) °C 60

Smokes temperature maximum (50-30°C) °C 40

Smokes temperature minimum (50-30°C) °C 40

Smokes flow kg/h 58.0

CO2maximum/minimum G20 % 7.0/2.5

CO2maximum/minimum G30/G31 % 8.0/2.8

Adsorbed power consumption W 150

Electrical protection grade IP X4D

CE certification n° 1312BT5040

Category II2H3+

Type

B22P-52P/C12-32-42-52-82

WEIGHT kg 43

CENTRAL HEATING

Maximum water head bar 3

Maximum temperature °C 85

Water content boiler l 5.0

C.H. setting range °C 30/80

Expansion vessel capacity l 8

Expansion vessel pressure bar 1

DOMESTIC HOT WATER

Minimum/Maximum pressure bar 0.2/7.0

D.H.W. flow rate (EN 625) l/min 11.7

Continuous D.H.W. flow rate ∆t 30°C l/min 11.9

Continuous D.H.W. flow rate ∆t 35°C l/min 10.1

D.H.W. setting range °C 30/60

GAS PRESSURE AND NOZZLES

Gas supply pressure G20 mbar 20

Gas supply pressure G30 mbar 28-30

Gas supply pressure G31 mbar 37

Nozzles quantity n° 12

Nozzles diameter G20 ø 1.30

Nozzles diameter G30/G31 ø 0.77

Burner gas pressure min./max. G20 mbar 2.0/11.5

Burner gas pressure min./max. G30 mbar 4.8/28.5

Burner gas pressure min./max. G31 mbar 4.8/36.5

C.H gas consumption G20 m3/h 2.70

C.H. gas consumption G30/G31 kg/h 2.01

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

22 23 24 25 26

RMGEU

KEY

1 Post-condenser

2 Smoke stat 95°

3 Fan

4 Main exchanger

5 SM sensor (thermister)

6 Aqua Guard Filter System

7 Safety stat 100°

8 Thermometer sensor

9 Gas valve

10 D.H.W. exchanger

11 Water flow switch

12 Divertor valve

13 Automatic by-pass

14 Circulating pump

15 Auto air vent

16 Expansion vessel

17 Condensation water trap

18 Safety valve

19 Temperature/pressure gauge

20 Boiler drain

21 D.H.W. filter

23 D.H.W. inlet cock

24 Gas cock

25 C.H. flow cock

26 C.H. return cock

R C.H. return

M C.H. flow

G Gas connection

E D.H.W. inlet

U D.H.W. outlet

S3 Condensation outlet ø 20

1.4 FUNCTIONAL DIAGRAM

Fig. 2

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

1.5 MAIN COMPONENTS

Fig. 3

KEY

1 Water flow switch

2 Water trap

3 Safety stat 100°

4 Aqua Guard Filter System

5 Main exchanger

6 SM sensor (thermister)

7Fan

8 Smoke stat 95°

9 Smoke pressure switch

10 Positive test point

11 Post-condenser

12 Combustion chamber

13 Ignition/ionization electrode

14 Burner

15 Gas valve

16 Automatic air vent

17 Control panel

18 Negative test point

Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ

01274 488 388

www.heatingspares247.com

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