EHC ECOSAVE 21K, ECOSAVE 25K, ECOSAVE 32K, ECOSAVE 37K Instruction Manual

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GAS FIRED WALL MOUNTED CONDENSING COMBINATION BOILER

FOR SEALED CENTRAL HEATING SYSTEMS AND MAINS FED DOMESTIC HOTWATER

THE APPLIANCE IS FOR USE WITH NATURAL GAS OR L.P.G

EHC ECOSAVE 21K EHC ECOSAVE 25K EHC ECOSAVE 32K EHC ECOSAVE 37K

INSTRUCTION MANUAL

INSTALLATION, COMMISSIONING & SERVICING

Preface

About the instructions

The instructions contain important information for the safe, professional installation and start-up of the EHC Ecosave gas-

Readers of the instructions need to be professional installers, who have been trained and have experience for working on heating and gas systems.

Subject to technical changes

The contents of the instructions are subject to changes due to our policy of continuous improvement.

Regulations

Competent Person's

Install and Commission this appliance to manufacturer's instructions

Complete the Benchmark Checklist

If you notify via Gas Scheme, Gas Safe will then notify the relevant Local Authority Building Control Scheme on member's behalf

Choose

Building

Route

Building Control

Contact your relevant Local Authority Building Control (LABC) who will arrange an inspection or contact a government approved inspector

Install and Commission this appliance to manufacturer's instructions

Complete the Benchmark Checklist

Scheme Members only

Contact Gas Safe or visit

www.gassaferegister.co.uk

You must ensure that the

by Gas Safe is written onto the Benchmark Checklist

Gas Safe will record the data

of compliance to the property

LABC will record the data

of compliance

Preface

EHC

Contents

1. Safety Considerations 4

1.1 Saf et y Denition s

1.2 Symbols Used in the Instructions

1.3 Important Safety Precautions

1.4 Legislation

1.5 CE Marking Information

2. Product Description 6

2.1 Description

2.2 Layout and Key Components

2.3 Control Panel

3. Technical Data 8

3.1 General Specications

3.2 Hydraulic Data

4. Dimensions 10

5. System Details 11

5.1 Operation Modes

5.2 Safety Functions

6. Installation Requirements 13

6.1 Location

6.2 Required Minimum Clearances

6.3 Ventilation

6.4 Gas Supply

6.5 Electrical Supply

6.6 Water Supply

6.7 Condensate Drain

6.8 Flue

7. Flue Options 18

7.1 Calculating the Overall Length of the Flue System

7.2 Fitting the Concentric Flue System

7.3 Fitting the Separate Flue System

8. Installation Procedure 21

9. Transporting and Unpacking 22

9.1 Transporting the Appliance

9.2 Unpacking and Checking the Accessories

13. Connecting the Flue 28

13.1 For a concentric ue system

13.2 For a separate ue system

14. Electrical Connections and Settings 29

14.1 Accessing the Controller Assembly

14.2 Accessing All the Electrical Connections

14.3 Connecting to Mains Power 230V

14.4 Connecting the Controller, Accessories and External Controls

14.5 Ensuring the DIP Switch Settings

15. Final Check and Commissioning 33

15.1 Connecting the Power Cable and Turning the Power ON/OFF

15.2 Checking the Gas Settings

15.3 Checking the Gas Equipment for Soundness

15.4 Checking and Adjusting the CO

15.5 Installing the Front Cover

15.6 System Filling and Pressurising

15.7 Operational Checks

15.8 Final Commissioning Check

16. Instructing the End User 41

16.1 Handing over the Instructions

16.2 Showing How to Operate

17. Error Code List 41

18. Electrical 42

18.1 Wiring diagram

19. Parts List 43

19.1 Base Parts

19.2 Burner Parts

19.3 Water Way Parts

20. Appendix 47

Appendix 'A' Gas Conversion Appendix 'B' Warranty Conditions Appendix 'C' Commissioning Check List

Value

10. Mounting the Appliance on the Wall 23

11. Making the Gas Connection 24

11.1 Gas Piping Materials

11.2 When using LPG

11.3 Gas Supply Pipe Installation Procedures

12. Fitting the Water Pipes and Condensate Pipe 26

12.1 Water Pipes and Condensate Pipe Connection Procedures

12.2 General Pipework Connections

12.3 Water Pipe Size and Water Pressure

12.4 Pressure R elief Valve

12.5 Frost Protection

EHC

3Contents

Safety Considerations1.

Safety Definitions1.1

All safety messages will refer to potential hazards. Precisely follow the instructions to avoid the risk of injury.

This is the safety alert symbol. It is used to alert you of potential personal injury hazards.

Adhere to all safety messages that follow this Symbol to avoid possible injury or death.

List of safety symbols in the instructions

DANGER

Indicates an imminently hazardous situation which, if not avoided, could result in severe injury or death.

WARNING

Indicates a potentially hazardous situation which, if not avoided, could result in severe injury or death.



Important Safety Precautions1.3

DANGER

If you smell gas

Gas Leaks can cause explosions, which may lead to serious injury..

Do not smoke. Prevent open ames and sparks.

Do not operate light switches or electrical equipment switches.

Open the windows and doors.

Close the gas shuto valve.

Shut down the heating system.

Keep people away from the danger zone.

Observe the safety regulations of your local gas supplier, found on the gas meter.

Notify your heating contractor from the outside of the building.

Flue gas may lead to life-threatening poisoning.

Shut down the heating system.

Ventilate the location.

Close all doors leading to living spaces.

Do not operate electrical switches.

CAUTION

Indicates an imminently hazardous situation which, if not avoided, could result in minor or moderate injury.

CAUTION

Used without the safety alert symbol indicates a potential hazardous situation which, if not avoided, could result in property damage.

Symbols Used in the Instructions1.2

The following symbols are used throughout the instructions to bring attention to the important information concerning the appliance.

Important

Note

Warns of a risk of material loss and environmental pollution.

Indicates additional information that is important but not related to personal injury or property damage.

CAUTION

Working on the heating system

Isolate the system from the main electrical power supply, e.g. by removing a separate fuse or by means of a main electrical isolator, and check that it is no longer “live”.

Isolate the gas supply and safeguard it from unauthorized reopening.

For propane appliances

Purging the liquid gas tank when installing the system:

Before installing the appliance make sure that the gas tank has been purged. The liquid gas supplier is responsible for properly purging the tank. Ignition ploblems may occur if the tank is not bled properly. In such cases, frst contact the person responsible for filling the tank.

Safety Considerations

EHC

Legislation1.4

EHC Declares that this appliance is free of any harmful substances, and no harmful substances are used during appliance manufacturing.

The appliance is suitable only for installation in GB and should be installed in accordance with the rules in force, and only used in a suitably ventilated location.

In GB, the appliance must be installed and commisioned by a GAS SAFE Registered Installer.

The appliance must be installed also in accordance with the relevant requirements of the:

Gas Safety (Installation & Use) Regulations.

The appropriate Building Regulations : either one of The Building Regulations, The Building Regulations (Scotland) , or The Building Regulations (Northern Ireland).

The Water Fittings Regulations or Water Byelaws in Scotland.

The Current I.E.E. Wiring Regulations.

For detailed information on the installation of condensing boilers, reference should be made to the ODPM Guide to the Condensing Boiler Assessment Procedure for Dwellings.

Standard Scope

BS 7074 Expansion vessels and ancillary

equipment for sealed water systems

BS 7593 Treatment of water in domestic hot

water central heating systems

BS 7671:2008 Requirements for electrical installations

BS EN 303-7:2006 Heating boilers BS EN 483 Type C Boiler of nominal heat input not

exceeding 70 kW

CE Marking Information1.5

0051

The appliance complies with the basic requirements of the relevant European directives.

Gas appliances directive (90/396/EEC)

Electromagnetic compatibility directive with threshold class B (89/336/EEC)

Low voltage directive (73/23/EEC)

C.O.S.H.H.

Materials used in the manufacture of this appliance are Non hazardous and no special precautions are required when servicing.

Codes of Practice - refer to the most recent version

Installation should also comply with the following British Standards Codes of Practice:

Standard Scope

BS 1212-1:1990 Float operated valves BS 4814:1990 Specication for expansion vessels using

an internal diaphragm BS 5440 Part 1 Flues BS 5440 Part 2 Ventilation BS 5546 Installation of hot water supplies for

domestic purposes BS 5449 Forced circulation hot water systems BS 5482-2:1977 Domestic butane- and propane-gas-

burning installations BS 6281-1:1992 Devices without moving parts for the

prevention of contamination of water BS 6282-2:1992 Devices with moving parts for the

prevention of contamination of water BS 6283-4:1991 Safety and control devices for use in hot

water systems BS 6798 Installation of gas red hot water boilers BS 6880-1:1988 Title code of practice for low

temperature hot water heating systems BS 6891:2005 Gas Installation

directive (92/42/EEC) as condensing boilers.

The Gas Appliance (Safety) Regulations 1992

As a result of our policy of constant development, there may be small diferences between illustrations, functional steps and technical data.

EHC

5Safety Considerations

Product Description2.

Description2.1

EHC Ecosave condensing gas boiler is a fully automatic, wall hung, fan assisted balanced  ue condensing boiler for use with Natural Gas and Propane Gas. For gas type conversions see the Appendix on Page 39.

This appliance is fully modulating and provides central heating and domestic hot water. The following four models are available according to their maximum outputs.

Model

EHC Ecosave-21K(A) EHC Ecosave-25K(A) 23.1 kW 23.1 kW EHC Ecosave-32K(A) 29.5 kW 34.2 kW EHC Ecosave-37K(A) 34.2 kW 34.2 kW

The appliance always gives priority to DHW supply.

The appliance is designed to be used with a circulation pump, a divert valve assembly, a  ow sensor, a DHW plate heat exchanger, a safety valve, and a CH expansion vessel. A separate DHW expansion vessel is not required.

Internal frost protection and an electronic control unit are incorporated within the boiler. Any volt free room thermostat can be used with the boiler.

Maximum

Heating Output

19.3 kW 23.1 kW

Maximum

DHW Output

Central

Heating

(CH)

ow

CH return

Cold water

Domestic hot water

Hot water tap

Domestic

Hot Water

(DHW)

Floor Heating Circuit or

Heating Circuit (Radiator)

Product Description

EHC

Layout and Key Components2.2

1 Expansion vessel 2 Heat exchanger & latent heat exchanger pipe 3 Heat exchanger outlet 4 Water pressure sensor 5 Air inlet 6 DHW 7 Gas control valve 8 Heat exchanger inlet

9 Magnetic Filter 10 Circulation pump 11 Flow 12 burner 13 Return 14 Pressure Relief 15 Gas Inlet 16 DHW outlet 17 Mains Water In 18 Cable Entry 19 DHW Flow 20 Condensate Syphon 21 Air Pressure Sensor 22 Gas 23 Gas/Air Mix 24 Latent Heat 25 Primary Heat 26 Mixing Flow 27 Exhaust 28 Electronic Ignition 29 Burner Mixing 30 Ignition

Control Panel2.3

temperature, the pressure in the heating system, the operating mode and additional functions.

2 CH temperature control knob 3 DHW temperature control knob 4 [MODE] button 5 [main ON/OFF] button 6 [RESET ] button

3 654

EHC

7Product Description

Technical Data3.

Unit

Heat Input (Max/Min) kW 19.6/4.9 23.5/4.9 30.0/7.0 34.9/7.0 Domestic Hot Water Input (Max/Min) kW 23.5/4.9 34.9/7.0 Heating Output (Max/Min) - Flow/Return (50/30°C) kW 19.3/4.8 23.1/4.8 29.5/6.8 34.2/6.8 Domestic Hot Water Output (Max/Min) kW 23.1/4.8 34.2/6.8 Condensing Heating Output (Max/Min) - Flow/Return (50/30°C) kW 21.1/5.2 25.2/5.2 32.6/7.5 37.6/7.5

Heat Loss through the Case with Burner On % 0.1 0.1 0.1 0.1 Heat Loss through the Chimney with Burner On % 1.6 1.8 1.5 1.9

NOx Class 5 Category II2H3P Purpose Heating and Domestic Hot Water Production

Heating Adjustability Range Rated

Heating Water Circulation Method Air Close Type Max Heating Water Pressure bar 3 Max Heating Temperature °C 85 Adjustable Temperature Heating Setting °C 30 - 85 Total Volume Expansion Vessel L 6.5 Expansion Vessel Pre-charge bar 1 DHW Output kW 23.1 - 4.8 34.2 - 6.8 Min. Dynamic DHW Pressure bar 0.3 Min. DHW Flow Rate l/min 2.5 Max. DHW Pressure bar 10 Adjustable DHW Temperature °C 30 - 65

l/min 11.7 17.6 l/min 10.0 15.1

l/min 7.8 11.7 Electrical Supply V/Hz 230 / 50 Nominal Absorption A 0.6 0.62 Power Consumption W 130 Electrical Protection IPX5D Installation Type Wall Mounting Type Intake/Exhaust Flue System Type B23-B33-B53-C13-C33-C43-C53-C63-C83 Intake/Exhaust Flue Diameter mm Concentric 60/100 – Separate 80/80 Max. Flue System Resistance Pa 167 294 Max. Horizontal Coaxial Ø60/100 Flue length (EHC System) m 20 Max. Vertical Coaxial Ø60/100 Flue length (EHC System) m 21 Equivalent Length of Ø60/100 Bend 90° m 1.3 Equivalent Length of Ø60/100 Bend 45° m 1 Max. Horizontal Coaxial Ø80/125 Flue length (EHC System) m 68 Max. Vertical Coaxial Ø80/125 Flue length (EHC System) m 70 Equivalent Length of Ø80/125 Bend 90° m 2.2 Equivalent Length of Ø80/125 Bend 45° m 1 Equivalent Length of Ø60/100 => Ø80/125 Adapter m 0.5 Max. Horizontal Separate Ø80-Ø80 Flue length (EHC System) m 110 Equivalent Length of Ø80 Bend 90° m 2.2 Equivalent Length of Ø80 Bend 45° m 1.4

Heating Water Connection mm 22

Connecting Diameter Domestic Hot and cold Water Connection mm 15

Gas Inlet Connection mm 22

Physical dimensions (Width × Depth × Height) mm 440 × 370 × 695

Technical Data

Ecosave

21K(A)

% 100.7 101.6 101.8 101.9 % 109.6 108.4 108.4 108.3

gkWeight 35 38

Ecosave

25K(A)

Ecosave

32K(A)

Ecosave

37K(A)

0.5

EHC

Hydraulic Data3.2

The following graph shows the development of the

Available Head Pump to the System

600

500

400

300

Head (mbar)

200

100

0 200 400 600 800 1000 1200 1400 1600 1800

Heating Flow Rate(l/h)

EHC

9Technical Data

Dimensions4.

698.8

745.7

Front view

110.4

376.3

Overhead view

255

Bottom view

366

All dimensions in mm

366.3

67.5

25.5

49.2

39.1

ABC E

6.1

122.5

440

60.4

Dimensions

A: Heating outlet 22mm B: Heating inlet 22mm C: Gas inlet 22mm D: DHW outlet 15mm E: Main water inlet 15mm

EHC

System Details5.

Operation Modes5.1

Circuit for CH (central heating) mode

Expansion Vessel

Three-way Valve

Ignition Electrode

Flow

Return

Flame Sensing Electrode

Heat Exchanger

Circulation Pump

Metal Fibre Burner

Mixing Flow Guide

Gas Inlet

Blow Fan

Gas Valve

When central heating is in demand, the three-way valve1. is set to CH mode position.

When the burner has ignited and the flame is detected,2. the control starts heating up the CH water to the set temperature. This control regulates the gas input rate by changing the fan speed.

The pump runs from 0 to 600 seconds depending on the

set temperature.

Note

Low water pressure error cancelling function

If the water pressure falls below 0.4 bar, the low water pressure error occurs on the control panel.

In this event re-pressurise the boiler to 1.5 bar

Note

The minimum operating pressure can be adjusted in the service menu.

80.0

70.0

60.0

50.0

40.0

30.0

Target primary temperature

20.0 20

15 10 5 0 -5 -10 -15 -20 -25

Outdoor Temperature (°C)

Relationship between primary and outdoor

K=1.5K=6 K=4 K=3 K=2

K=1

K=0.5

temperature: K-factor

Note

Weather Compensation

If an outdoor temperature probe is connected, the weather compensation function can be used. With this function, the target primary temperature is automatically set according to the outdoor temperature (K-factor).

Note - The control panel enables you to adjust the parameters by resetting the K-factor.

EHC

11System Details

Circuit for DHW (Domestic Hot Water) mode

Expansion Vessel

Ignition Electrode

Flame Sensing Electrode

Heat Exchanger

Circulation Pump

Metal Fibre Burner

Mixing Flow Guide

Blow Fan

in demand by a tap or shower, the three-way valve is set to DHW mode position as priority is given to the DHW mode.

The primary water circulates through the DHW Heat 2. Exchanger, and the water coming from the inlet is heated.

The heating control function controls the burner until the 3. DHW reaches the set temperature.

After DHW is used, the burner is extinguished and the 4. three-way valve remains in the DHW mode position. The

mode.

When CH is demanded, the position of the three-way 5. valve is changed to the CH mode position, and the system returns to the CH mode.

Three-way Valve

DHW Pre-heating mode

Ignition Electrode

Expansion Vessel

Heat Exchanger

Three-way Valve

DHW Heat Exchanger

Flame Sensing Electrode

Circulation Pump

DHW Heat Exchanger

Gas Valve

Gas

Inlet

Metal Fibre Burner

Mixing Flow Guide

Blow Fan

Gas Valve

DHW Water

outlet Inlet

Water Flow Sensor

If the CH mode is not used and the service setting for the DHW pre-heating mode is set to ON, the DHW pre-heating mode can be used.

The primary water circulates through the DHW Heat 1. Exchanger. This pre-heats the unit in preparation for DHW demand.

The burner is ON or OFF depending on the return 2. temperature so that the set temperature is maintained.

Return Temp (°C)

Toff

Ton

Burner operation

MAX

MIN

DHW pre-heating mode

ONOFF

Time

System Details

Gas

Inlet

EHC

Installation Requirements6.

Safety Functions5.2

Frost Protection

In CH, DHW, and Weather Compensation modes, frost protection is an integral function for protecting the appliance. This function is the highest priority among the operation modes and this

There are two kinds of processes depending on the primary water temperature.

6 -10°C If the primary water temperature falls below 10°C, the control

system runs the pump for 10 minutes and stops the pump for

1 minute. This process is continued while the primary water

temperature is in the above mentioned range.

Below 6°C The appliance ignites the burner in the CH mode until the

primary water temperature reaches 21°C.

High Temperature Protection (HTP)

In stand-by and while the burner is operating, if the High

pump and the fan start in order to reduce the temperature of the appliance. The pump and the fan continue to run in the CH mode until the primary water temperature falls below 80°C. While the burner is operating, the safety shut-down process takes place. At this point the pump and the fan re-start.

Actuator Protection

If the appliance is not operated for 24 hours, the fan and pump automatically operate for 30 seconds to prevent seizing.

Location6.1

DANGER

The appliance must be tted to a suitable wall to prevent re and explosion. At the installation site, the ue that passes through the outside wall or roof must be routed properly in order to satisfactorily remove flue products. Also, an adequate air supply must be provided, and combustible products need to be removed.

Do not t the appliance near paper, newspapers, magazines, or any other combustible objects.

Do not t the appliance where rubbish is located.

WARNING

If the appliance is tted in a room with high humidity (e.g. a room containing a bath or a shower), the appliance and any electrical switch or appliance controller, etc. should be situated specically in accordance with the current IEE Wiring Regulations and Building Regulations.

If the appliance is tted into a building made of timber frames, refer to the latest edition of the Institute of Gas Engineers Publication IGE/UP/7 (Gas Installations in Timber Framed Housing) or British Gas Document DM2 and DM3.

The appliance should not be ftted in the building unless it is protected by an appropriate enclosure, such as a garage or outbuilding. (The appliance may be tted inside a cupboard).

For other unusual locations, refer to BS 6798:2000 for detailed guidance.

Note

Fit the appliance at an appropriate height.

Air Flow Checking

During the start-up sequence, the “no air check” function

supply.

EHC

13Installation Requirements

Required Minimum Clearances6.2

Ventilation6.3

appliance. The following minimum clearances (mm) must be maintained for installing and servicing.

5 mm

440 mm

5 mm

250 mm

698.8 mm

200 mm

the appliance is installed. If it is installed in a cupboard or compartment, permanent ventilation for cooling purposes is not required. Detailed recommendations are given in BS 5440 Part 2.

Gas Supply6.4

Gas installation must comply with the requirements in BS

6891.

Check for leaks at every joint as described in BS 6891 to check the soundness.

Ensure that the pipe sizes, including the ones for other gas appliances on the same supply, are adequate for demand.

Electrical Supply6.5

Main supply : 230 V~/50 Hz with 3 Amp fuse certied BSI or VDE.

Cable : PVC insulated 0.75 mm rated to 90°C.

The appliance must be earthed.

All pipes to the appliance must be cross-bonded.

Wiring must comply with IEE Wiring Regulations and any local regulations which may apply to a xed wired stationary appliance.

External wiring must be correctly earthed, polarized and must comply with related regulations/rules.

Note

The way the electricity supply is connected must facilitate the complete electrical isolation of the appliance. It may be connected via a fused doublepole isolator with a contact separation of at least 3 mm for all the poles for servicing the appliance and system controls only.

(24 × 0.2 mm) temperature

600 mm min

Case

Removal Purposes

These dimensions include the necessary clearances around the appliance for case removal, spanner access and air movement. Additional clearances may be required for the passage of pipes around local obstructions.

Installation Requirements

Water Supply6.6

CAUTION

(ensure the appliance is not connected) to remove any sediment and prevent the heat exchanger from being damaged by build-up or corrosion due to any sediment.

Do not use petroleum-based cleaning and seals because the system may be damaged and may result in substantial property loss.

Immediately repair leaks in the appliance or piping in order to prevent the build-up of mineral and corrosion in system components due to the continuous water make up. The build-up of minerals and corrosion will reduce the life of the appliance.

EHC

Condensate Drain6.7

General instructions

Important

Note

This appliance is a high eciency gas appliance that creates condensate when operating. The condensate must be discharged in accordance with any national or local regulations in force since the condensate has an acidity (pH) of approximately 3 - 4 (BS 6798:2000 & Part H1 of the Building Regulations give further guidance).

A condensate trap is built into the appliance as standard.

Options for the condensate drain (see the gures on the next page).

From the appliance to the drain/gully via a sink waste1. (the bottom of the appliance must be above the top of the sink and must be downward-sloping to properly discharge condensate)

From the appliance to the internal soil and vent stack2.

From the appliance to a soakaway hole surrounded by 3. limestone chipping

From the a4.

Of the above options, EHC recommends option 1 as the soap from the sink neutralizes the acidic condensate.

If a sink waste is not abilable, EHC recommends options 2, 3, or

4. If permitted by local regulations, the condensate may be drained directly into the drain/gully.

Note

If a soakaway hole is installed, periodical replacement of the limestone chipping (or neutralizing agent) is required. The rate of depletion of the limestone varies depending on the usage of the appliance. Occasionally check the depletion of the neutralizer, and replace the limestone if any depletion is observed.

The condensate must be drained from the appliance in accordance with applicable rules and regulations.

Reliable operation of the appliance will be afected by an improperly connected condensate piping.

The condensate pipe must retain a downward slope of at least 2.5 degrees throughout.

ppliance to the drain/gully

CAUTION

Requirements for the condensate piping are as follows.

So that condensate can be properly drained the t diameter of the plastic piping should be a minimum of 22 mm.

The condensate pipe should be made of a non-corrosive t material, such as PVC, PVC-U, ABS, PVC-C or PP. Metal materials are NOT suitable.

For safety reasons the ends of the pipes should extend t as close as possible to the ground or drain/gully. To reduced the risk of the condensate becoming trapped as few elbows and fttings as possible should be used.

When draining the condensate into an internal soil and t vent stack, the plumbing eect must be considered. If the pipes are easily aected by internal pressure uctuations, when WC's are ushed or sinks are emptied, back-pressure may force water out of the appliance trap and a lockout may occur.

The length of the external pipework should be kept to t a minimum and routed as vertically as possible. Where the pipework is subjected to extreme cold or windchill, weatherproof insulation should be used. If insulation is not used then the condensate pipework should have a minimum diameter of 32 mm.

For 22 mm diameter condensate drainage pipe, the t maximum length is 3 metres.

If the appliance is tted in an unheated location, the t entire pipe system should be treated as an external run.

In order to prevent sagging, any external runs need to t be propped up with supporting clips.

EHC

15Installation Requirements

Examples of available options for condensate drain

1. From the appliance to the drain/gully via a sink

22 mm plastic condensate pipe

sink

2.5º minimum drop

Frost proof insulation (if necessary)

The end of the pipe must be above water level

but below the surrounding surface.

2. From the appliance to the external rain water pipe into foul water

External rain water pipe into foul water

Internal soil and vent stack

Drain/Gully

4. From the appliance to the gully

Visible air break at pulg hole

Sink with integral

100mm

overow

22 mm plastic condensate pipe

75 mm min.

75 mm sink waste trap

The end of the pipe must be above water level

but below the surrounding surface.

Condensate drain termination

PRV

Frost proof insulation (if necessary)

Drain/Gully

Extarnal air break

22 mm plastic condensate pipe running through the external wall

43 mm 90° M &F bend

3. From the appliance to a soakaway hole surrounded by limestone chipping

22 mm plastic condensate drainage pipe, max extarnal length 3 metres

500 mm min.

2.5º minimum drop

Hole depth 400 mm min. (by 300 mmΦ)

Holes in the soakaway must face away from the

building.

Ground level

Air gap

68 mmΦ PVC-u strap on fitting

100 mm Φmin. sealed plastic tube

Limestone chippings

25 mm

Drainage holes

Outside wall

Condensate pipe

External drain

Installation Requirements

EHC

8.6eulF

The minimum distances between the terminals and elements of the building are as per the following.

A G

BCD

H, I

Use of terminal guards needs to be considered.

Description

From openings (e.g. doors, windows, ventilation tiles)

Below gullies, down-pipes, or drain pipes

Below gutters

Below balconies

From down pipes

From external and internal corners

Above the ground, a roof or balconies From the opposite wall of a carport (when another

ue is not installed) From a terminal, that is facing the terminal, on the

opposite wall of a carport Next to openings (e.g. doors, windows) within a

carport

Vertically away from a terminal on the same wall

Horizontally away from a terminal on the same wall

From an adjacent vertical ue pipe

From openings in a directly opposing building

*1 The terminal should not be located within 15 cm from openings in the building material made for a built-in object (e.g. window frame) *2 This length is according to BS 5440-1.

CAUTION

Terminal guards must be provided for any terminals which are located less than 2 metres above a balcony, above a at roof, or above ground which people can access.

Minimum

Distance

(cm)

30(*1)

7.5

2.5

120

150

200(*2)

Formula of Length Equivalency

This is the formula for sizing the pipes for the intake of the combustible air and the discharge of the combustion products. The Length equivalency (L eq) in these instructions are for the lengths of the pipes which share the same cross-sectional dimensions.

Resistance of the component under standard condition

Resistance of a 1-metre-long pipe (with pre-established diameter) under standard condition

Standard conditions are experimental values for the capacities, fume temperature and air temperature for various thermal power values. They represent dierent operating conditions.

Example of coaxial system calculations

Planning the system run.1.

Measuring the length of the system run.2.

Determining the values of the length equivalency for all 3. components.

Calculating the value of the total length.4.

Comparing the values with the maximum permissible 5. length.

CAUTION

The wall on which the intake/exhaust ue is set must be made of incombustible interior materials and must connect to the outside. Dangerous materials or obstructions must not be near the intake/exhaust ue.

The exhaust ue should be covered with over 20 mm of incombustible material when it passes through a wall made of combustible material and must be kept at least 50 mm away from any combustible materials.

Connection parts of the exhaust ue must be properly connected by proper sealing gasket. Check for any exhaust gas leaks.

Before cleaning the intake/exhaust ue, turn o the appliance and wait until the pipes have cooled down. Safeguard the ue terminals from snow buildup.

Note

EHC

For vertical ue pipes, the terminal must not be t within 60 cm of any openings

17Installation Requirements

Flue Options7.

Calculating the Overall Length of the 7.1 Flue System

These ue systems may be oriented in all the various directions of the compass, north, south, west and east. Some special components such as concentric bends are used so that certain positions can be reached. Each concentric ue system kit includes an adapter, which allows the appliance to be connected to the ue system.

However, the total ue length cannot exceed the prescribed maximum ue length. If concentric bends are required, please bear in mind that each of them has resistance that corresponds to its specic linear length.

There are 2 separate connections (horizontal and vertical) for the concentric ue system and separate ue system.

Study the following connection depictions to determine which ue system is the most suitable.

Maximum Flue Length

Concentric

Flue

System

Separate

Flue

System

Diameter of

Pipe [mm]

Φ 60/100

Φ 80/125

Φ 80/80

Orientation

Horizontal 20

Vertical 21

Horizontal 68

Vertical 70

Horizontal

Vertical

Maximum Flue

Length [m]

110

Fitting the Concentric Flue System7.2

Concentric Horizontal Flue

a) Standard ue system (Φ 60/100 mm)

”A” is the combined length of the ue outlet/ ventilation pipe maximum 20 m.

B 500 or 1,000

851

“B” is the ue outlet/ventilation pipe (can be shortened as necessary).

Standard ue system: A = 20 m

b) Extended ue system (Φ 60/100 mm)

140 min

Wall

Reduced Flue Length

Diameter of

Pipe [mm]

Φ 60/100 - >

Φ 80/125

Concentric

Flue

System

Separate

Flue

System

Note

Φ 60/100

Φ 80/125

Φ 80/80

The adapter for Φ 60/100 mm ues or Φ 80/125 mm ues is 0.5 m.

Angle

- 0.5

45° 1.0

90° 1.3

45° 1.0

90° 2.2

45° 1.4

90° 2.2

Reduced Flue

Length [m]

Total ue length: A + B – (1 x 90° elbow) = 20 – 1.3 =18.7 m

Flue Options

EHC

Concentric Vertical Flue

Standard ue system : A = 21 m

Φ 60/100 mm)

b) Extended vertical ue system (Φ 60/100 mm)

Minimum 350 mm

Total ue length : A + B – (2 x 45° elbow) = 21 – 2 x 1 = 19.0 m

Diameter of

Pipe [mm]

Φ 60/100

Φ 80/125 70

Grey coloured numbers are used in the calculation of this sample.

Max Flue

Length [m]

(a/b)

Reduced Flue

Length [m]

45°

90° 1.3 45° 1.0 90° 2.2

1.0

(b)

EHC

19Flue Options

Fitting the Separate Flue System7.3

Separate Horizontal Flue

Extended separate horizontal fue system

(Φ 80/80 mm)

Total ue length: A + B + C + D + E + F – (4 x 90° elbow) = 110 – 4 x 2.2 = 101.2 m

Diameter of

Pipe [mm]

Φ 80/80

Grey coloured numbers are used in the calculation of this sample.

Max Flue

Length [m]

110

(a/b)

Reduced Flue Length [m]

45° 1.4(a) 90° 2.2

Separate Vertical Flue

Total ue length: A + B + C + D – (2 x 45° elbow) = 110 – 2 x 1.4 = 107.2 m

Diameter of

Pipe [mm]

Φ 80/80

Grey coloured numbers are used in the calculation of this sample.

Max Flue

Length [m]

110

(a)

Minimum 350 mm

Reduced Flue Length [m]

2.2

(a)

45° 1.4

90°

Flue Options

EHC

Installation Procedure8.

*GUIFøVFTBSFOPUöUUFECFGPSFUIFJOTUBMMBUJPOPGUIFBQQMJBODF

Transporting and

Unpacking

section 9.

Mounting the Appliance

on the Wall

section 10.

(BTDPOWFSTJPO

*GOFDFTTBSZ

"QQFOEJY

Making the Gas Connection

section 11.

Fitting the Water Pipes and

Condensate Pipe

section 12.

Fitting the ues

t'JUUJOHUIFDPODFOUSJDøVFTFDUJPO t'JUUJOHUIFTFQBSBUFøVFTFDUJPO

Connecting the Flue

TFDUJPO

Electrical connections

and Settings

section 14.

Final Check and

Commissioning

section 15.

Instructing the End User

section 16.

EHC

21Installation Procedure

Transporting and Unpacking9.

Transporting the Appliance9.1

CAUTION

The appliance may be damaged if it is not properly transported.

Transport the appliance using the right transportation t equipment, such as a hand truck with a fastening belt or special equipment for maneuvering steps.

Protect all parts against impact when they are t transported.

Observe the transportation markings on the packaging.t

Packaged appliances must always be lifted and carried to their destination by two people, or you must use a hand truck or special equipment to transport them to their destination.

Unpacking and Checking the 9.2 Accessories

Before actually installing, be sure to verify the gas supply, type, pressure, and the electrical power supply.

Remove the boiler and accessories form the box.1.

Check the accessories inside the box.2.

The appliance is delivered fully assembled. After receiving the delivery, check if the packaging is intact and all the items listed below are included.

EHC Gas-Fired Wall Mounted Condensing Combination Boiler

Wall Mounting Bracket

(including washers and nuts)

User instructionst

Installation Instructionst

Tapping Screws & Anchors (4 sets)

Flue Adapter

Condensate Drain Hose

Gas Conversion Kit

Transporting and Unpacking

EHC

Mounting the Appliance on the Wall10.

Mount the appliance on the wall using the following procedures.

Mark the installation points for the ues and screws on 1.

130

167

165

Boiler mounting plate.

Boiler

NOTE: Boiler will be 20cm higher than mounting plate

the wall. Ensure that the points are both horizontally and vertically level.

Make a hole for the ues (minimum diameter 116 mm).2.

Drive the supplied anchor bolts for the bracket into the 3. marked points (minimum diameter 13 mm).

Fit the wall mounting bracket with the tapping screws and 4. anchors.

Take great care when applying the boiler to the wall 5. mounting bracket.

CAUTION

This appliance must always be lifted and carried by two people.

Hook

EHC

23Mounting the Appliance on the Wall

Making the Gas Connection11.

WARNING

Before completing the gas pipe connection, ensure that the type of gas is suitable for the appliance. If you use a type of gas other than the one specied on the data plate on the lower right corner of the appliance, it may cause incomplete combustion and result in re or explosive ignition. Ensure that the gas supplier supplies an adequate supply of gas. The installation and connection of the gas supply to the boiler must be in accordance with BS 6891.

When connecting a gas meter to the pipe,t

the gas meter must be connected to the pipe by a gas supplier or contractor only.

an existing meter should be checked to ensure that it is capable of measuring the required gas supply rate.

When tting the gas pipe, t

do not use pipes that are smaller than the boiler gas connection (22 mm).

pipes must be directly connected to the main pipe, they must not be connected to other gas appliances.

Gas Piping Materials11.1

WARNING

Installation pipes should be fitted in accordance with BS6891.

All pipework must be adequately supported.

An isolating gas valve is provided and should be fitted on the

boiler gas inlet. Please wait 10 minutes when lighting from cold before checking the gas rate at the gas meter. Gas pressure should be checked after the boiler has operated for 10 minutes to reach thermal equilibrium.

When using LPG11.2

WARNING

If the boiler is used with LPG it must be connected to a

regulator. Connection and installation must conform to

BS 5482: Pt1 Domestic butane and propane gas burnig

installations.

DANGER

The complete installation must be tested for gas soundness and purged as described in BS6891 as a gas leak may cause serious injury or death.

If an appliance using LPG is installed in a room or internal space below ground one side of the building must be open

to the ground.

Note

The outlet pressure regulated by the governor t should be in accordance with BSEN-13785.

The diameter of the gas pipes for this unit is 22mm.t See the specifications in these instructions.

DANGER

When using a gas container, place the container in a cool shady place away from direct sunlight outdoors and fix the container properly to prevent it from tipping over.

Othewise an explosion may occur.

Making the Gas Connection

EHC

Gas Supply Pipe Installation 11.3 Procedures

Connect the gas supply pipe to the gas inlet adapter 1. located at the bottom of the appliance.

Check for gas leaks.2.

Valve kit for external connections.3. Each boiler is supplied with an EHC Valve Kit for each external connection. Please refer to the installation instructions within

the valve kit packaging.

DANGER

After completing installation, the gas pipes must be checked for leaks and purged as described in the standards. Gas leaks may cause an explosion that induces serious harm or property damage. When purging, open all doors and windows, and extinguish cigarettes, pipes or any other naked lights.

EHC

Bottom view

Gas inlet adapter

25Making the Gas Connection

Union

Fitting the Water Pipes and Condensate Pipe12.

WARNING

Do not add anti-freez to the system as this may shortent the life of the appliance and cause malfunctions.

Tighten the boiler connection valves with care to avoid t

Condensate Drain Hose

damage.

Before using this appliance, thoroughly flush the system t (ensure the appliace is not connected) to remove any sediment and prevent the heat exchanger from being damaged by build-up or corrosion due to any sediment. Any contaminants inside the pipes may reduce heating and hot water efficiency as well as causes malfunctions.

Any exposed pipes must be insulated with insulation t material because they may freeze during winter. If hot water cannot be used because the supply water in the pipes freezes or because the water inside the heating pipes is insucient, the water cannot be replenished. As a result, the appliance may not function.

Do not use excessive force to connect the pipes. This t might damage external parts and cause leaks.

CH ow

CH return

Under Floor Heating Circuit or

Heating Circuit (Radiator)

Condensate Pipe

Bottom view

Cold Water Supply

Hot Water Supply

Water Pipes and Condensate Pipe 12.1 Connection Procedures

Connect the water pipe to the water inlet adapter and 1. DHW outlet adapter located at the bottom of the appliance which is clearly indicated on the boiler.

Connect the water pipe to the heating supply adapter and 2. to the heating return adapter that is located at the bottom of the appliance which is clearly indicated on the boiler.

Connect the condensate drain hose which is clearly indicated3. on the boiler. See Claus 6.7 Condensate Drain (How to drain

the condensate).

Condensate

Drain cock

Heating supply adapter

Heating return adapter

Fitting the Water Pipes and Condensate Pipe

outlet

Water Inlet adapter

DHW outlet adapter

EHC

General Pipework Connections12.2

Frost Protection 12.5

Refer to Code of Practice

BS7074:1 Domestic and hot water supply BS6891 Installation of low pressure gas pipework up to

28mm(R1).

Copper pipework is the prefered material type. If plastic pipework(barrier pipe) is used a minimum of 600mm of copper pipe must be used from the boiler connection.

The discharge must not be above a window, entrance or

other pubic access. Consideration must be given to the

possibility that boiling water/steam could discharge from

the pipe.

The end of the pipe should terminate facing down and towards the wall.

Water Pipe Size and Water Pressure12.3

The connection diameter of the cold water supply pipes for this appliance is 15mm

To use the unit, the inlet pressure must be more than 0.5 bar

A water pressure of more than 1.0 bar is needed to supply hot water to the second foor.

If the appliance is connected to a system that is potentially frozen isolate the boiler's water and power supply.

The frost protection is an integral function to protect the appliance in CH, DHW and OTC mode. This function has the highest priority among the operation modes and this function works even if the

The Energy Saving 2 staged Frost Protection system protects both

inside the unit automatically operates to circulate water when the water temperature for the heating falls below 10 *C. In the second stage the boiler operates the burner when the temperature falls below 6 *C.

All exposed pipework should be insulated to meet current standards.

When the boiler will not be used for long periods please observe the following.

completely drain the water from the appliance to prevent

freezing.

isolate gas supply valve,

isolate the electrical supply.

If the appliance is installed in an extremely cold location, take necessary measures, such as covering the exposed pipes and electrics with insulation material.

Pressure Relief Valve12.4

The pressure relief valve is set at 3 bar, therefore all pipe work, fttings, etc. should be suitable for pressures over 3 bar and temperature in excess of 100°C.

The pressure relife valve should be connected to 15 mm copper pipe. It should run continuously downward, and discharge outside the building preferably over drains. in such a manner that no hazard occurs to occupants or causes damage to wiring or electrical components. The end of the pipe should terminate facing down and towards the wall.

The discharge must not be above a window, entrance or other pubic access. Consideration must be given to the possibility that boiling water/steam could discharge from the pipe.

It should be routed

EHC

27Fitting the Water Pipes and Condensate Pipe

Connecting the Flue13.

WARNING

Adapter

The exhaust gas ducts must not come in to contact with t or be located close to combustible materials and must not pass through building structures or walls made of combustible materials.

When replacing an old appliance, the ue system must be t changed.

Adapter or connection methods vary depending on the type of ue system (concentric type or separate type). Follow the following instructions carefully.

For a concentric flue system13.1

Flue

Blanking plate

Air intake

Flue outlet

Each concentric ue system kit includes an adapter, as shown in the gure, which helps connect the appliance to the ue system.

Assemble the components and seals as shown in the gure.

Connect the ue adapter to the appliance.1.

connect the flue bend to the adapter and seal.2.

For a separate flue system13.2

Each separate ue system kit includes an adapter, as shown in the gure, which helps connect the appliance to the ue system.

Assemble the components and seals as shown in the gure.

Flue Outlett

Install the ue adapter to the appliance.1.

Connect the flue bend to the adapter and seal.2.

Adapter

Connecting the Flue

Adapter

Flue

Air Intaket

Remove the blanking plate.1.

Connect the ue adapter to the appliance. (The adapter 2. comes with this appliance.)

Connect the flue bend to the adapter and seal.3.

EHC

Electrical Connections and Settings14.

Accessing the Controller Assembly14.1

Remove the 2 screws from the underside of the appliance.1.

Unlatch all the clips, and pull up the hooks (2 on the top2. and 2 on the bottom of the appliance).

Lift o the front panel from the wall mounted unit.3.

Remove the 3 screws on the underside of the controller assembly,4. and 1 screw to the right of the controller assembly. Then pull the controller assembly downward.

5. Remove the screw on the front of the controller cover, and then the controller cover remove

EHC

Controller assembly

Clamp

29Electrical Connections and Settings

Accessing All the Electrical 14.2 Connections

DANGER

Isolate the main electrical supply before starting any work and check all relevant safety precautions

Note

Important

Note

Short circuiting risk: When connecting the cables, ensure that no pieces of cable fall into the electrical and and electronic connections.

Release cap "A" on the cable gland which is located at the 1. bottom of the appliance.

Remove the black silicone tube "B" from the cable gland.2.

Insert wire "C" into cap "A" and the silicone tube "B".3.

Insert the prepared cable into the cable gland, put the cap4. back on, and secure.

Please ensure tha all electrical connectionst are tight and secure.

This unit must be earthed.t

The appliance is designed with an IPX5D

protection rating.

The main supply to the boiler must be t connected through a double pole isolator

situated local to the appliance. The isolator must have a minimum contact separation

of 3mm acros all poles.

Electrical Connections and Settings

EHC

Connecting to Main Power 230 V14.3

Detail view

1,2 : Room Thermostat / Room Controller 3,4 : Tank Storage Thermostat 5,6 : Outdoor Temperature Sensor 9 : P.E 10 : Neutral 11 : Live

12 : EXT. 3-WAY [ CH ] 13 : EXT. 3-WAY [ DHW ] 14 : EXT. 3-WAY [ COM ]

Note

The appliance must be connected to the mains terminals which are clearly marked on the rear of the control panel with a suitable 3 core flex (supplied).

Contact a qualied electrician if the power cable needs replacing.

The boiler must be wired to current IEE Regulations.

Fuse replacement (if necessary)

When replacing the main fuse on the PCB, use a 3A quick blow

fuse.

Isolate the boiler at the mains.1.

Remove the plastic access cover at the rear of the control 2. panel to gain access.

Locate and replace the fuse in the upper portion of the PCB.3.

EHC

31Electrical Connections and Settings

1,2 : Room Thermostat / Room Controller 3,4 : Tank Storage Thermostat 5,6 : Outdoor Temperature Sensor 9 : P.E 10 : Neutral 11 : Live

12 : EXT. 3-WAY [ CH ] 13 : EXT. 3-WAY [ DHW ] 14 : EXT. 3-WAY [ COM ]

Connecting the Controller, 14.4 Accessories and External Controls

Connecting the Room Thermostat / Programmable Room Stat

The appliance is designed to be connected to a volt free room thermostat. Connect the cable to terminal blocks No. 1 and 2.

Connecting the Weather Compensation Sensor

The appliance is designed to be connected to an outdoor

weather compensating temperature sensor. Connect the cable

to terminal blocks No. 5 and 6.

OFF

12345678910

DIP Switch Settings14.5

The dip switches are on the top of the control panel as shown on the diagram.

Refer to the following table to ensure that the dip switches are properly set to the correct position depending on boiler type

i,e LPG or Natural Gas. Note: All boilers are pre-set to Natural Gas

Switch No.

1- 2 Maximum operation Normal operation 3 Minimum operation Normal operation 4 LPG(G30) 5- 6- 7 Natural Gas -

8-10 Heat Capacity

ON OFF

Switch No.

21K(A) 25K(A) 32K(A) 37K(A)

8 OFF OFF OFF ON 9 ON ON OFF OFF

10 ON OFF ON OFF

Function

Heat Capacity

Electrical Connections and Settings

EHC

Final Check and Commissioning15.

Connecting the Power Cable and 15.1 Turning the Power ON/OFF

DANGER

Before turning on the power, replace the controller cover t to the original position.

Replace the controller cover, insert and tighten the screw. 1.

Connect the power cable which is connected to the 2. appliance to the 3 Amp fused spur.

DANGER

Controller cover

Before turning on the power, ensure that the appliance is t earthed. Electrocution may occur if the appliance is not properly earthed.

EHC

To 3 Amp power supply

Turning the Power ON/OFF

Press the [main ON/OFF] button on the control panel to turn on the power.

Hold the button for more than one second to turn the power off.

[main ON/OFF] button

33Final Check and Commissioning

Checking the Gas Settings15.2

Loosen the test point "A" that is clearly marked on the2. diagram. Connect a digital manometer or U gauge to the test point.3.

pressure, the boiler is set for natural gas G20 the supply pressure should be 20mb.

If the supply pressure is not within the permissible range 5. contact the gas supply company to rectify the problem.

If the connection pressure is within the permissible range

Gas

test point "A"

Digital pressure manometer

After the gas service pipe- work has been purged and tested 1. for soundness, turn the power onto the boiler. (The heating system will be full of water at this stage and set to a pressure

of 1.5bar and free of air as per the filling and pressurising instructions)

Now check the Inlet working pressure with all other gas 2. appliances turned “ON”, and the boiler set to maximum, you can set the boiler to maximum output by selecting dip switch No 2 to “ON” we recommend the minimum working pressure with the boiler running at maximum should read

17mb at test point “A” on the gas valve.

Gas Rate: As you cannot test the boiler burner pressure 3. you will have to gas rate the appliance from the supply meter. The boiler will have to be set to maximum (select dip switch No2 to ON) calculate the gas rate after the boiler has

been running for at least 10 minutes, Gas flow rates can be found in the table on page (remember to select dip switch 2 to off after this test, the boiler will stabilize after

about 15 min to normal operation)

You can set the boilers output by percentage, 4.

CH output: CH by pressing the mode and reset button on the boilers front

control panel for 5 seconds, this will enter you into the service parameter menu, the service table can be found on page 38. percentage range from 20% to 100%(FH- Full heat) you can also change some other parameter functions that are shown

on this table if required.

You can change the boilers output by a

Final Check and Commissioning

Checking the Gas Equipment for 15.3 Soundness

DANGER

Gas leak could result in explosion. Check all fittings for soundness.

EHC

Checking and Adjusting the CO15.4

Value

As described on the data plate, this appliance is set for natural gas by default. Furthermore, this appliance can be used without adjusting the CO

Subject to the WEBBER INDEX, the CO

8.9% and 9.3%. The CO

adapter test point.

If the actual CO

value deviates from the stated ranges by more

than 1.0%, check the ue system for leaks.

Note

Gas-air Ratio adjustment screw “C”

For more information about the CO2 values for each model, refer to "CO

Level" table on appendix.

Check the discharge amount, and adjust the CO the following procedures.

Set the 3rd dip switch to the "ON" position. 3. The burner is now set to the minimum rated input. For details about setting dip switches, see "14.5 the DIP Switch Settings".

Check the CO4.

value.

If the actual value deviates more than 1.0% from the -

If the measured CO-

value is not correct, adjust the gasair ratio adjustment screw “C” on the gas control valve after removing the cap on the gas-air ratio adjustment screw “C”. Turn it to the right to increase the CO turn it to the left to decrease it.

Enter actual values in the service report.5.

The following mentioned items are done in conjunction 6. with the checking and adjusting of the CO

6-1. Prepare the water column meter or manometer

6-2. Wait for around 30 seconds. 6-3. Read the gas-air ratio.

If the gas/air ratio is not between in 0 and -0.1 mbar, you should adjust the adjustment screw “C” on the gas valve.

value using

level and

level.

EHC

Gas

test point “B”

Digital pressure manometer

Maintain the appliance at the minimum rated output while checking the gas-air ratio with a water column meter or manometer.

Set the 3rd dip switch to “OFF” and set the 2nd dip switch to 7. “ON”. The burner is now set to the maximum rated input.

Check the CO8.

Note

value.

If the actual value deviates more than 1.0% from the above range, check the seals in the

Enter the actual values in the service report.9.

Note

Note that the process will automatically end after 15 minutes.

Set the 2nd dip switch to “OFF”.10.

35Final Check and Commissioning

Controller assembly

Installing the Front Cover15.5

Replace the controller assembly. 1.

Install the front cover and secure.2.

Final Check and Commissioning

EHC

System Filling and Pressurising 15.6

The appliance is supplied with a lling loop by-law kit which must be used to ll the system. It should be connected between the main water inlet pipe and central heating return pipe and removed after completion.

This can be supplied as a stand alone filling loop or it will be incorporated within the valve kit supplied with the boiler depending on boiler type.

Fill the system to 1.5/2.0 bar and bleed the complete system of air, this process may have to be repeated more than once, open the automatic air vent within the boiler, this is located just above the pump housing, bleed the pump by turning the screw on the

front face of the pump anti clockwise.

You will be able to view the system pressure by pressing the mode key on the boilers front control panel, if the pressure is below 0.4 bar the boiler will show an error code E02 This can be reset by simply pressing the reset key on the control panel.

Ball valve

Appliance

Ball valve

Flushing

New systems:

Method statement for cleaning and treating new domestic systems Procedure

1. Fill the system with cold mains water to the recommended pressure and check for leaks, then drain the system thoroughly making sure all drain cocks are fully open and that the system is

completely drained.

2. Add Fernox Cleaner F3 through via a radiator using either a Fernox Injector, Express or Superconcentrate at the recommended dose. One pack must be used as a minimum per dwelling. If you are not sure of the dose rate, then contact Fernox Technical Services on

+44 0870 870 0362.

3. Fill the system back up and circulate the Fernox Cleaner F3 before the boiler is fired up. Then commission the system in the normal way. Cleaner F3 must be in the system for a minimum of 1 hour with the system at normal operating temperature. A longer period of time would be more beneficial to the cleaning process especially if excess flux was used.

4. Drain and flush the system thoroughly to remove the cleaning chemical and debris present. This is a crucial part of the cleansing process and must be done correctly. Use a rinse test meter such as the Fernox TDS meter to ensure that the Total Dissolved Solids have been satisfactorily removed. The system can be regarded as being thoroughly flushed when the system water value is within 10% of the mains water value. Differences over 10% mean that significant cleaner residues have been left in the system and further flushing is required. If not removed cleaner residues will promote corrosion and negate the cleaning process.

Central heating

return

Temporary loop

Double check valve

Water inlet

5. Once the system has been cleaned thoroughly, then add a Fernox Protector F1, to the system. The product must be added as per the manufacturer's instructions. This will protect against the formation of scale, corrosion and microbiological growths. It is crucial, however, that for a Protector F1 to work correctly, the system must be properly cleaned and flushed.

6. The sticker on the base of the Fernox Protector F1 back label should be correctly filled in and attached adjacent to the boiler.

7. Please note: we recommend Protector levels are checked on an annual basis (usually during the service) or sooner if the system content is lost. This should be carried out using a Fernox Protector test kit or 60 second Protector Check strip.

8. Fernox Technical Services can be contacted on +44 (0) 870 870 0362 for further assistance.

EHC

37Final Check and Commissioning

Flushing existing systems

Where an old boiler is being replaced we recommend that the

boiler as dirt and debris from the old system may cause damage to the boilers internal components, or the method below is followed.

content is lost. This should be carried out using a Fernox Protector test kit.

11. Fernox Technical Services can be contacted on +44 (0) 870 870 0362 for further assistance.

Method statement for cleaning and treating existing domestic systems

Cleaning and inhibiting an existing central heating installation using Fernox Cleaner F3 and a Fernox Protector F1.

Procedure

water.

2. Add Fernox Cleaner F3 through a radiator using either a Fernox Injector, Express or Superconcentrate at the recommended dose.

3. Turn on the appliance and circulate product for a minimum of one hour hot or for a longer period of time if preferred.

4. Isolate all radiators except that furthest away from the appliance,

Repeat step 5 throughout the system including appliance and circulator pipes.

5. Isolate all radiators except that furthest away from the appliance. Open the full bore drain point; at the same time introduce fresh water via the temporary mains connection.

Flush through thoroughly until the water runs clear.

Use a rinse test meter such as the Fernox TDS meter to ensure that the Total Dissolved Solids have been satisfactorily removed. The

Note

Failing to follow theses instructions will invalidate the boilers warranty.

system water value is within 10% of the mains water value.

removed cleanser residues will promote corrosion and negate the cleaning process.

6. Repeat step 6 on all radiators, appliance and circulator pipework.

7. Re-open all radiators, and circulate for a further 15 minutes and take a further TDS reading.

8. Once the system has been cleansed thoroughly, then add a Fernox Protector F1, to the system. The product must be added as per the manufacturer's instructions. This will protect against the formation of scale, corrosion and microbiological growths. It is crucial, however, that for a Protector to work correctly, the system

9. The retreatment sticker provided with all Fernox Protectors should be correctly completed and applied to the boiler casing.

10. Please note: we recommend Protector levels are checked on an annual basis (usually during the service) or sooner if the system

Final Check and Commissioning

EHC

Operational Checks15.7

Check the following items with the control panel. For detailed operational procedures, refer to "Instructions for Use" for further information.

Check Items Conrmation Methods Display

Check whether the appliance works normally when the power is ON.

Check whether the water pressure for the heating system is normal.

Check whether the temperature setting for the CH mode is normal.

Check whether the temperature setting for the DHW mode is normal.

Check whether the reset operation is normal.

Press the [main ON/OFF] button.1.

Check whether the display is the same as shown on the right2.

Display the water pressure by pressing the [MODE] button.1.

Check whether the water pressure is in the normal range.2.

Set the central heating temperature by turning the CH temperature 1. control knob.

Display the supply water temperature by pressing the [MODE] button.2.

Check whether the set temperature and the supply water temperature 3. are the same.

Set the hot water temperature with the DHW temperature control knob.1.

Display the domestic hot water temperature by pressing the [MODE] 2. button.

Check whether the set temperature and the domestic hot water 3. temperature are the same.

Press the [RESET] button.1.

Check whether the display is the same as shown on the right2.

Display the service menu by holding the [MODE] and the [RESET] 1. button simultaneously for 5 seconds.

Press the [MODE] button until the desired parameter number is 2. Check whether the operation set in the service menu is correct.

Parameters for service menu

displayed.

Refer to the following table for parameter numbers.

Change the setting with the CH temperature control knob.3.

Wait for 10 seconds until the display goes back to the main display.4.

Ensure that the parameter set is in eect.5.

No. Parameter Range Default

0 Rated range heat capacity 20 - 99, FH* (%) FH* 1 Pump over run time 3 - 40 minute 3 minute 2 DHW post delay time 0 - 20 minute 5 minute 3 Anti-cycling timer 0 - 10 minute 0 minute 4 DHW Pre-heating ON/OFF OFF 5 Rated range water pressure 0.5 - 2.0 bar 1.0 bar 6 Minimum/Maximum operation setting OFF/MIN/MAX OFF

FH* = Full (Maximum) Heat Capacity = 100 %

EHC

39Final Check and Commissioning

Final Commissioning Check15.8

The trial run should be performed in accordance with the following check items.

If errors occur during commissioning, error codes will be displayed on the control panel.

Please refer to section 17 "Error Code List" and take the appropriate action.

Activities Measured Value Remarks

Check water ling and leaks in the heating system

Check the gas settings

Gas type

If the data plate is changed when doing a gas conversion.

Check the gas pressure, CO settings

Check the gas equipment for soundness

Check the operation of the control panel

If it works normally when the switch is ON.

If the water pressure for the heating system is normal.

If the temperature setting for the heating system is normal.

If the temperature setting for the domestic hot water is normal.

If the reset operation is normal.

If the operation set in the service menu is correct.

Check the CO

settings

Check if the weather compensation function works normally

Check if the condensate drain pipe discharges normally

Final Check and Commissioning

EHC

Instructing the End User16. Error Code List17.

Handing over the Instructions16.1

Hand over the instructions and the checklist, and explain the following points to the end user.

Explanation of the data platet

Countermeasures for gas leakst

Risks of fire due to combustibles, dust, and explosivest

Risks of placing flammable liquids near the appliancet

Risks of placing oxides such as chlorine near the appliancet

Risks of placing rubbish near the appliancet

Frost proof insulationt

Precautions about the intake and exhaust uet

Precautions about the condensate drain pipet

Necessity of annual periodical checks by service engineerst

Cleaning methodst

Precautions about not using the appliance for long periods of t time

Ensure client is made aware of Warranty Conditions.

Showing How to Operate16.2

Use the “Instructions for Use”, to explain the following points concerning how to operate the appliance. Also, congure the settings for the user.

Appliance functionst

Operating the control panelt

Power ON/OFF

Display details

Temperature settings for central heating

Temperature settings for domestic hot water

Explain and operate the service menu

Operations when error codes are displayed

Precautions against using the appliance incorrectly.t

Countermeasures for appliance malfunctionst

Location and operation of the gas shuto valvet

Explain the following error codes if the appliance malfunctions. The error codes will blink and be displayed on the digital control Panel.

Error Code

E02 Low water-level Contact Engineer.

E03 Ignition failure Reset the appliance.

E04 Flame simulation

E05 Supply water thermistor: Open

E06 Supply water thermistor: Short

E07 Hot water thermistor: Open

E08 Hot water thermistor: Short

E09 Abnormal fan Reset the appliance.

E10 Abnormal air pressure Reset the appliance.

E11 Water pressure sensor fault

E12 Flame failure Reset the appliance.

E15 Abnormal BMC Reset the appliance.

E16 Over heat: Heat exchanger Reset the appliance.

E17 DIP Switch Setting fault Reset the appliance.

E18 Return water thermistor: Open

E19 Return water thermistor: Short

E21 Inlet water thermistor: Open

E22 Inlet water thermistor: Short

E27 Abnormal air pressure sensor Reset the appliance.

E30 Over heat: Exhaust Reset the appliance.

E40 Outdoor thermistor: Short

E93 Key button failure

Reason Action required

Contact Engineer.

EHC

Instructing the End User

41Error Code List

18.

lacirtcelE

Wiring Diagram18.1

Electrical

EHC

Parts List19.

Case Parts19.1

Item No Part No. Boiler Size Description Item No Part No. Boiler Size Description

1 ECP20001 ALL Case 10 ECP20010 ALL APS (Air Pressure Sensor)

2 ECP20002 ALL Top bracket 11 ECP20011 ALL APS bracket

3 ECP20003 ALL Bottom bracket 12 ECP20012 ALL Tube

4 ECP20004 ALL Lock out 13 ECP20013 ALL Cover

5 ECP20005 ALL Insulation top 14 ECP20014 ALL Controller Ass’y

6 ECP20006 ALL Insulation side 15 ECP20015 ALL Air Intake Packing

7 ECP20007 ALL Controller bracket (L) 16 ECP20016 ALL Air Intake Plate

8 ECP20008 ALL Controller bottom bracket 17 ECP20017 ALL Case Clip

9 ECP20009 ALL Controller Bracket (R)

EHC

43Parts List

Burner Parts19.2

Item No Part No. Boiler Size Description Item No Part No. Boiler Size Description

30 ECP20030 ALL Mix chamber packing ECP30043 21/25kW

31 ECP20031 ALL Mixing flow guide ECP40043 32/37kW

32 ECP20032 ALL Ignition trans ECP30044 21/25kW

33 ECP20033 ALL Fan packing ECP40044 32/37kW

34 ECP20034 ALL Fan assay ECP30045 21/25kW

ECP50035* 21/25kW Mixer Chamber Assembly ECP40045 32/37kW

35 36 37

ECP60035* 32/37kW Mixer Chamber Assembly ECP30046 21/25kW

* Note: Items 35, 36 & 37 must be ordered as an assembly

ECP30038 21/25kW ECP40046 32/37kW

38 Gas pipe assay

ECP40038 32/37kW ECP30047 21/25kW

39 ECP20039 ALL Gas outlet adapter ECP40047 32/37kW

40 ECP20040 ALL Gas control valve 48 ECP20048 ALL Gas nozzel packing

41 ECP20041 ALL Gas inlet adapter 49 ECP20049 ALL O-ring (Mixer box sealing)

ECP30042 21/25kW 50 ECP20050 ALL Air supply pipe packing

42 Air supply pipe

ECP40042 32/37kW 51 ECP20051 ALL Gas Valve O-Ring

Burner packing

Burner Assay

Heat exchanger packing (gasket)45

Mix Chamber46

Gas Nozzle47

Parts List

EHC

Water Way Parts19.3

120

EHC

45Parts List

Item No Part No. Boiler Size Description Item No Part No. Boiler Size Description

80 ECP20080 All Burner fixing rack 101 ECP20101 All Heating supply pipe 1

ECP70081 21kW 102 ECP20102 All Heating supply pipe assay

ECP71081 25kW ECP30103 21/25kW

81 82

120

83 ECP20083 All Exhaust duct adaptor packing ECP30105 21/25kW

84 ECP20084 All Exhaust duct ECP40105 32/37kW

85 ECP20085 All Secondary heat exchanger bracket R 106 ECP20106 All DHW outlet pipe

86 ECP20086 All Secondary heat exchanger bracket L 107 ECP20107 All DHW outlet adaptor

87 ECP20087 All Siphon hose 108 ECP20108 All Cap

88 ECP20088 All Siphon hose clip 109 ECP20109 All DHW inlet pipe 1

89 ECP20089 All Siphon 110 ECP20110 All DHW inlet pipe 2

90 ECP20090 All Secondary heat exchanger oulet adaptor 111 ECP20111 All 3 way valve

91 ECP20091 All Secondary heat exchanger inlet adaptor 112 ECP20112 All Heating supply adaptor

92 ECP20092 All

94 ECP20094 All Primary heat exchanger inlet adaptor ECP30116 21/25kW

96 ECP20096 All Circulation pump 118 ECP20118 All Expansion pressure hose

97 ECP20097 All Strainer 119 ECP20119 All Expansion pressure hose clip

98 ECP20098 All Heat return pipe A ECP30121 21/25kW

99 ECP20099 All Heating return adaptor ECP40121 32/37kW

100 ECP20100 All Pressure relief valve

* Note: Items 81, 82 & 120 must be ordered as an assembly

ECP72081 32kW ECP40103 32/37kW

ECP73081 37kW 104 ECP20104 All Fl ow sensor

ECP30093 21/25kW 114 ECP20114 All Check valve

ECP40093 32/37kW 115 ECP20115 All Temperature limit sensor

ECP30095 21/25kW ECP40116 32/37kW

ECP40095 32/37kW 117 ECP20117 All Expansion vessel

Heat Exchanger Assembly

Primary and secondary heat exchanger connection pipe

Hot water outlet pipe

Primary heat exchanger inlet pipe

103

105

113 ECP20113 All W ater pressure sensor

116

121

DHW exchanger

Water inlet adaptor A, B

Electrode rod

Temperature limit sensor

Parts List

EHC

Appendix A

Gas Conversion

If the type of gas needs to be converted from the one specied on the data plate, the specic “gas conversion kit” must be requested for a quick and easy conversion.

Replace the front cover.15.

Put a new data plate with the correct type of gas and16.

correct inlet pressure on the old plate.

DANGER

Conversion of the gas type must be performed by a fully qualified Gas Safe Engineer.

Convert the gas type by installing the gas conversion kit and adjusting the CO

Important

Turn o the power.1.

Close the gas shutoff valve on the gas supply.2.

Remove the front panel of the appliance.3.

Replace t4. he gas nozzle located on the gas connection pipe with the fan.(fig 1)

Connect a flue gas analyzer probe at the flue gas connector 5. to the flue outlet.

Open the gas shutoff valve on the gas line.6. Make sure that the gas nozzle is not leaking.

R eplace the front cover and turn on the power.

Check the maximum and minimum output CO After prepare the following gure(g 2) with manometer,10. the boiler set to condition at minimum rated output.

The boiler is settled under minimum rated output after11. a round 30 seconds.

12.

After should checked to manometer, if Gas/Air ratio is not located in 0~ -0.1mbar as the following figure(fig 3), you s hould adjusted the adjustment screw "C" on the gas valve.

level using the following procedures.

With the "Nozzle and Venturi" table, ensure that you prepare the correct size of nozzle and venturi before starting the conversion procedures.

levels.

Important

Once you ensure that all of the specied nozzles and ports are properly connected, and the CO following items:

There is no ame return in the t combustion chamber.

The ame is not excessively high or t separated from the burner.

All the probes used during the t conversion are perfectly sealed.

There are no gas leakages.t

levels are correct, check the

Nozzle

Packing

CAUTION

Ensuring the CO2 level

Ensure that maximum and minimum output CO Levels are within the tolerances detailed in the

"CO Level" tabel.

If the minimum output CO level is not correct, adjust it by turning the screw located on the gas valve. Turn it to the right to increase the CO level, and turn it to the left to decrease it. After adjusting it, check the maximum output CO level again.

Adjusting the nozzle pressure value

Adjust the nozzle pressure with the gas-air ratio adjustment screw “C” so that the oset value falls between 0 to -0.1 mbar.

After the adjustment, turn o the power.13.

Close off the flue test point after you are satisfied that the 14. analyzer reading are correct. Ensure that test point "B" and "C" are fully tightened after the gas/air ratio has been set.

EHC

Fig 1. Disassembly

of Nozzle

47Appendix

Nozzle and Venturi

Gas Type Item

G20

G31

Ø nozzle 5.8 5.8 6.8 6.8

Ø Venturi20202424

Ø nozzle 4.4 4.4 5.3 5.3

Ø Venturi20202424

Ecosave

21K(A)

Gas Nozzle Pressure and Flow Rate

Model

Ecosave

21K(A)

Ecosave

25K(A)

Ecosave

32K(A)

Ecosave

37K(A)

Gas Category

Output Input

Load kcal/h kW kW m3/h m3/h

Max. 16,598 19.3 19.6 2.098 0.791

Min. 4,128 4.8 4.9 0.542 0.196

Max. 19,866 23.1 23.5 2.513 0.955

Min. 4,128 4.8 4.9 0.542 0.196

Max. 25,370 29.5 30.0 3.214 1.207

Min. 5,848 6.8 7.0 0.750 0.281

Max. 29,412 34.2 34.9 3.720 1.398

Min. 5,848 6.8 7.0 0.750 0.281

[ 20 mbar ]

G20

Gas Flow

Rate

Ecosave

25K(A)

G31

[ 37 mbar ]

Gas Flow

Rate

Ecosave

32K(A)

Ecosave

37K(A)

CO2 Level

Gas Type Mode

G20

G31

Output

Max.

Min.

Max.

Min.

Gas

test point “B”

Ecosave

21K(A)

CH Mode 9.4 9.4

DHW Mode

CH Mode

DHW Mode

9.4 9.4

9.1 9.1

10.4

10.0

Digital pressure manometer

Ecosave

25K(A)

10.4

10.0

Ecosave

32K(A)

9.5

9.2

10.2

10.0

Adjustment screw “C”

Gas test point “B”

Gas test point “A”

Ecosave

37K(A)

9.5

9.2

10.2

10.0

Appendix

Fig 2. Connection of

Manometer

Fig 3. Test point of

Gas valve

EHC

Appendix B

B.1

Warranty

Standard Terms & Warranty Conditions

2 Years Warranty - register today

To receive your 2 years parts + labour warranty, please complete WarrantyRegistraiton Card supplied with the appliance or simply

call EHC Ltd on Tel No:01698 820533

Our Promise

If you experience any malfunctions with your new appliance, we aim to provide safe and high quality repair services supported by our dedicated national network of highly skilled engineers. If your installer cannot solve the problem for you, we will arrange for an engineer to service your appliance as soon as possible.

rights.

What this Warranty Covers

Free repairs or the replacement of components found to be faulty from manufacture.

If the appliance fails due to manufacturing related issues, the entire appliance will be replaced free of charge if it is determined that the appliance cannot be repaired, or it is not economically feasible to repair it.

installation.

What this Warranty Does NOT Cover

Repairs of the appliance which have not been detailed in the

B.2

Registration is simple. Just complete the Warrnaty Registration Card and return to EHC Ltd within 30 days of installation. Your details will be automatically registered within the EHC Warranty Registration Scheme.

B.3

If the appliance malfunctions when it is initially operated, contact your installers. Their professional assessment is needed under the terms of our Warranty.

If you are unable to contact your installer, call the EHC Technical Department on Tel No: 01698 820533

B.4

The appliance is a state-of-the-art appliance which has been constructed in accordance with recognized safety regulations. Nevertheless, if the appliance is misused or used for applications for which it is not intended for, the user or others may incur the risk of injury or death, or incur damage to the appliance or property.

The appliances are designed to generate heat for domestic hot water and to be connected to hot water central heating systems. Any other usage shall be considered to be usage other than what was originally intended. The manufacturer/ supplier is not liable for any resulting damage. The user alone bears the risk. Intended usage includes the observance of the instructions for use and installation instructions and all other applicable documents, as well as adherence to maintenance and inspection conditions.

Warranty Registration

Immediate Help

Intended Use

Any damage caused by hard water scale deposits and/or aggressive water resulting from corrosion.

Any other defects or failures, either in the connected heating system or outside of the appliance itself.

Faults caused by inadequate supplies of electricity, gas or water to the property.

Installations not suited to the original design of the boiler.

Reimbursement of any third party repair or replacement costs that were not approved by EHC Ltd Prior to the repair taking place.

Compensation for consequential losses (e.g., loss of earnings, business losses, stress and inconveniences) arising from a production breakdown, including repair delays caused by factors beyond our reasonable control.

B.5

Clean the exterior of your appliance with a damp cloth. DO NOT use any abrasive products to clean the appliance.

B.6

Please observe the applicable national legal regulations.

Care

Recycling and Disposal

The Appliance

Do not dispose of the appliance or any of its accessories with household waste. Make sure that the old appliance and any existing accessories are disposed of properly.

Packaging

Leave the disposal of the transport packaging to the installer that installed the appliance.

EHC

49Appendix

Appendix C

GAS BOILER SYSTEM COMMISSIONING CHECKLIST

This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference.

Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not affect statutory rights.

Customer Name Telephone Number

Address

Boiler Make and Model

Boiler Serial Number

Commissioned by (print name) Gas Safe Register Number

Company Name Telephone Number

Company Address

Commissioning Date

To be completed by the customer on receipt of a Building Regulations Compliance Certiﬁcate

Building Regulations Notiﬁcation Number (if applicable)

CONTROLS Tick the appropriate boxes

Time and Temperature Control to Heating Room Thermostat and Programmable Programmer/Timer

Time and Temperature Control to Hot Water Cylinder Thermostat and Programmer/Timer Combination Boiler

Heating Zone Valves Fitted Not Required

Hot Water Zone Valves Fitted Not Required

Thermostatic Radiator Valves Fitted Not Required

Automatic Bypass to System Fitted Not Required

Boiler Interlock Provided

Room Thermostat Compensation Control

Load/Weather Optimum Start

ALL SYSTEMS

The system has been ﬂushed and cleaned in accordance with BS7593 and boiler manufacturer’s instructions Yes

What system cleaner was used?

What inhibitor was used? Quantity

CENTRAL HEATING MODE Measure and Record:

Gas Rate

Burner Operating Pressure (if applicable)

Central Heating Flow Temperature

Central Heating Return Temperature

m3/hr OR

mbar OR Gas Inlet Pressure mbar

COMBINATION BOILERS ONLY

Is the installation in a hard water area (above 200ppm)? Yes

If yes, has a water scale reducer been ﬁtted? Yes

What type of scale reducer has been ﬁtted?

DOMESTIC HOT WATER MODE Measure and Record:

Gas Rate

Burner Operating Pressure (at maximum rate)

Cold Water Inlet Temperature

Hot water has been checked at all outlets Yes

Water Flow Rate

m3/hr OR

mbar OR Gas Inlet Pressure (at maximum rate) mbar

Temperature

CONDENSING BOILERS ONLY

The condensate drain has been installed in accordance with the manufacturer’s instructions and/or BS5546/BS6798 Yes

litres

°C

l/min

/hr

ALL INSTALLATIONS

If required by the manufacturer, record the following CO

The heating and hot water system complies with the appropriate Building Regulations Yes

The boiler and associated products have been installed and commissioned in accordance with the manufacturer’s instructions Yes

The operation of the boiler and system controls have been demonstrated to and understood by the customer Yes

The manufacturer’s literature, including Benchmark Checklist and Service Record, has been explained and left with the customer Yes

Commissioning Engineer’s Signature

Customer’s Signature

(To conﬁrm satisfactory demonstration and receipt of manufacturer’s literature)

All installations in England and Wales must be notiﬁed to Local Authority Building Control (LABC) either directly or through a Competent Persons Scheme.

A Building Regulations Compliance Certiﬁcate will then be issued to the customer.

% OR CO ppm OR CO/CO

Ratio

SERVICE RECORD

It is recommended that your heating system is serviced regularly and that the appropriate Service Record is completed.

Service Provider

Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions.

Always use the manufacturer’s speciﬁed spare part when replacing controls.

SERVICE 1 Date

Energy Efﬁciency Checklist completed?

Engineer Name

Company Name

Telephone Number

Gas Safe Register Number

Comments

Signature

SERVICE 3

Date

Energy Efﬁciency Checklist completed? Yes

Engineer Name

Company Name

Telephone Number

Gas Safe Register Number

Comments

Signature

Yes

SERVICE 5 Date

Energy Efﬁciency Checklist completed?

Engineer Name

Company Name

Telephone Number

Gas Safe Register Number

Comments

Signature

Yes

SERVICE 2 Date

Energy Efﬁciency Checklist completed?

Engineer Name

Company Name

Telephone Number

Gas Safe Register Number

Comments

Signature

SERVICE 4

Date

Energy Efﬁciency Checklist completed? Yes

Engineer Name

Company Name

Telephone Number

Gas Safe Register Number

Comments

Signature

Yes

SERVICE 6 Date

Energy Efﬁciency Checklist completed?

Engineer Name

Company Name

Telephone Number

Gas Safe Register Number

Comments

Signature

Yes

SERVICE 7

Date

Energy Efﬁciency Checklist completed?

Engineer Name

Company Name

Telephone Number

Gas Safe Register Number

Comments

Signature

SERVICE 9 Date

Energy Efﬁciency Checklist completed?

Engineer Name

Company Name

Telephone Number

Gas Safe Register Number

Comments

Signature

Yes No

Yes

SERVICE 8

Date

Energy Efﬁciency Checklist completed?

Engineer Name

Company Name

Telephone Number

Gas Safe Register Number

Comments

Signature

SERVICE 10 Date

Energy Efﬁciency Checklist completed?

Engineer Name

Company Name

Telephone Number

Gas Safe Register Number`

Comments

Signature

Yes No

Yes

Disclaimer: All details within this document are correct at the time of printing however they may be subject to change.

EHC Ltd.

ISO 9001:2008

EHC ECOSAVE 21K, ECOSAVE 25K, ECOSAVE 32K, ECOSAVE 37K Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual