Saunier Duval Combitek F 23 E Guide de l'utilisateur

THIS IS A CAT II2H3+ APPLIANCE

01773 828100

IN WARRANTY

TECHNICAL HELPLINE

01773 828400

COMBITEK F 23 E

Installation and Servicing Instructions

USER INSTRUCTIONS

INTRODUCTION

The Combitek F 23 E is a wall mounted combination

boiler providing central heating and instantaneous

domestic hot water.

These instructions should be carefully followed for

the safe and economical use of your boiler.

Gas leak or fault

If a gas leak or fault exists or is suspected, turn the

boiler and gas supply off and consult the local gas

company or your Installer/Service provider.

In case of power supply failure

The boiler no longer operates.

As soon as power supply is restored, the boiler will

restart automatically.

In case of loss of water in the system

CAUTION. The boiler is installed as part of a sealed

system which must only be drained and filled by a

competent person.

If the pressure shown on the pressure gauge is less

than 1.5 bar the system must be filled up.

Important notice: A central heating system cannot

operate satisfactorily unless it is properly filled with

water and unless the air initially contained in the

piping systems has been properly bled off. If these

conditions are not satisfied, air noise will occur within

the system and the boiler may fail to operate.

Air in the heating system

Persistent air in the heating system may indicate

leaks in the system or corrosion taking place. Call

your Installer/Service provider.

Overheating safety

In the event of problem, the overheat safety device

causes safety shutdown of the boiler. If this happens,

call your Installer/Service provider.

INSTALLATION AND SERVICING INSTRUCTIONS

COMBITEK F 23 E

Mandatory warning for CE countries

WARNING, these appliances were designed, approved and inspected to meet the requirements of the

English market. The identification plate located on the inside of the appliance certifies the origin where the

product was manufactured and the country for which it is intended.

If you see any exception to this rule, please contact your nearest stockist.

Thank you in advance for your assistance.

Note: The boiler serial number is marked on the data label attached to the PCB housing behind the front

lower section. Refer to the ‘Introduction’ section for a description of the basic functions of the boiler. The

‘User’ section describes how to safely operate the boiler.

Users’ Instructions

Introduction ..................................................... Page 2

Controls and lighting ................................................. 3

Draining and filling ..................................................... 3

Heating safety valve ................................................. 3

Servicing/maintenance ............................................ 3

Cleaning ..................................................................... 4

Boiler casing ............................................................... 4

Installation Instructions

Introduction ..................................................... Page 4

Changing gas type ................................................... 4

Technical data......................................................4 - 5

Dimensions .................................................................. 5

Boiler schematic ........................................................ 6

Terminal positions ....................................................... 7

Heating and hot water system design .................... 7

Boiler installation ........................................................ 8

Horizontal flue installation ......................................... 9

Vertical flue installation ........................................... 10

Electrical connection .............................................. 11

Commissioning ......................................................... 12

Adjustments .............................................................. 13

Safety device ........................................................... 13

Setting ....................................................................... 14

Servicing Instructions

Routine cleaning and inspection ............... Page 15

Replacement of parts ...................................... 16 - 21

Schematic wiring diagram ..................................... 22

Fault finding ....................................................... 23 - 24

Spare sparts .............................................................. 24

Diagram 1

CONTROLS AND LIGHTING

Make sure that:

The boiler is connected to the electrical supply.

The boiler gas service cock is open.

The pressure gauge reads between 1.5 and 2 bar.

The boiler is now ready to start.

To start the boiler

Switch on using mains switch (4), see diagram 1.

Place switch (2) in the Summer or Winter position

To stop the boiler

Place switch (4) to the Off position (0).

Setting to ‘Summer’

mode (Hot water only)

Place switch (2) in the

Summer position (see

diagram 2).

Setting to ‘Winter’ mode

(Heating and hot water)

Place switch (2) to the

Winter position

Adjust the heating temperature control (2) to the

desired temperature.

The heating will operate according to the

requirements of the timeclock and/or room ther-

mostat if fitted or, will operate according to the

system requirements.

Domestic hot water always has priority over cen-

tral heating.

Timeclock

To set the clock rotate actuater mechanism

clockwise, by hand, until current time is indicated.

See diagram 3.

Note: The time is set in 24 hour format, for example

1300pm for 1pm

Setting the programme ‘ on & off ’ times

Select the on times by pushing the black tappets to

the outside

Select the off times by pushing the black tappets to

the inside

The clock shown in diagram 3 is set as follows

On 07.00am to 09.00am

Off 09.00am to 4.00pm

On 4.00pm to 10.00pm

Off 10.00pm to 07.00am

Diagram 2

Diagram 3

To override or advance the clock

The clock has a manual on/off switch see diagram

3 which opperates as follows:

Upper position 1 Heating on continuosley

Middle position Heating on timed

Lower position 0 Heating off

DRAINING AND FILLING

Caution: The boiler is installed as part of a sealed

system which must only be drained and filled by a

competent person.

Note: If there is persistent loss of system pressure, you

must consult your Installer/Service Provider.

HEATING SAFETY VALVE

CAUTION: A safety valve with a discharge pipe is

fitted to this boiler.

The valve MUST NOT BE TOUCHED except by a

competent person. If the valve discharges at any

time, switch the boiler off and isolate it from the

electrical supply. Contact your Installer/Service

Provider.

SERVICING/MAINTENANCE

Toensure thecontinued efficientand safeoperation

of the boiler, it is recommended that it is checked

and serviced at regular intervals. The frequency of

servicing will depend upon the installation condi-

tions and usage but, in general, once a year should

be enough.

The control panel is located on the front

bottom section. The controls on this panel

allow the boiler to be started, shut down

and controlled during use.

1- Pressure / Temperature gauge

2- Hot water / Heating temperature

control & summer / winter switch

3- Timeclock

4- Mains On/Off switch

USER INSTRUCTIONS

CLEANING

The boiler casing can be cleaned with a damp cloth

followed by a dry cloth to polish.

Do not use abrasive or solvent cleaners.

BOILER CASING

CAUTION: Do not remove or adjust the casing in any

way,as incorrectfitting mayresultinfaultyoperation.

If in doubt, contact your Installer/Service Provider.

INSTALLATION INSTRUCTIONS

INTRODUCTION

The Combitek F 23 E is a wall mounted combination

boiler providing central heating and instantaneous

domestic hot water.

Note: this boiler requires no fixing jig and has top

outlet flueing only ( there is no rear flue option ).

The boiler is of the II2H3+ category for use with

Natural gas (G20). To convert to Butane (G30) or

propane (G31), the following kit is required.

Gas conversion kit :part number 86161

The boiler has a fan assisted, balanced, flue which

both discharges the product of combustion to, and

draws the combustion air from, the outside of the

building.

Accessories

A range of accessories are available including,

vertical flue components. For further information,

contact you nearest stockist.

Gas Safety (Installation and Use) Regulations

In the interests of gas safety, it is the law that ALL gas

appliances are installed and serviced in by a

competent person in accordance with the above

regulations.

Gas leak or fault

If a gas leak or fault exists or is suspected, turn off the

boiler and gas supply and consult the local gas

company or your Installer/Service Provider.

Heating output

automatically variable from 8,9 kW to 23,3 kW

30,000 BTU/H to 80,000 BTU/H

Efficiency 82,4 %

Heating adjustment 38°C to 90°C

Expansion vessel effective capacity 6,5 l

Expansion vessel charge pressure 0,5 bar

Maximum system capacity at 75°C 140 l

Safety valve, maximum service pressure 3 bar

Products outlet diameter 60 mm

Fresh air inlet diameter 100 mm

Hot water output

automatically variable from 8,9 kW to 23,3 kW

30,000 BTU/H to 80,000 BTU/H

Maximum hot water temperature 65 °C

Specific flow rate (for 35°C temp rise) 9,6 l/min

Threshold flow rate 3 l/min

Nominal water flow rate 12 l/min

Maximum supply pressure 10 bar

Minimum operating pressure 0,5 bar

Electrical supply 230 V

Maximum absorbed power 130 W

Natural Gas Butane Propane Town gas

(G20) (G30) (G31) (G130)

Burner injector 1,2 mm 0,73 mm 0,73 mm 2,4 mm

Inlet pressure 20 mbar 29 mbar 37 mbar 8 mbar

Gas rate (maximum) 2,70 m3/h 2,01 kg/h 1,98 kg/h 3,88 m3/h

Gas rate (minimum) 1,13 m3/h 0,84 kg/h 0,74 kg/h 1,63 m3/h

Heat output

(kW) 8,9 10 11 12 13 14 15 16 17 18 19 20 21 22 23,3

(Btu/h) 30387 34142 37557 40971 44385 47799 51214 54628 58042 61456 64871 68285 71699 75113 79552

Heat input

(kW) 11,9 13,2 14,4 15,7 16,9 18,1 19,2 20,4 21,5 22,7 23,8 24,9 26,0 26,9 28,3

(Btu/h) 40678 45130 49332 53481 57579 61627 65626 69575 73477 77333 81142 84906 88913 91713 96602

GAS

G 20 (mbar) 1,3 2,1 2,6 3,0 3,5 4,0 4,5 5,1 5,7 6,3 6,9 7,6 8,3 8,8 9,8

G 30 (mbar) 3,7 5,3 6,3 7,4 8,6 9,8 11,1 12,5 13,9 15,4 17,0 18,6 20,4 21,7 24,1

G 31 (mbar) 4,0 6,3 7,5 8,8 10,2 11,7 13,3 14,9 16,7 18,5 20,3 22,2 24,4 26,0 28,8

USER INSTRUCTIONS

TECHNICAL DATA

Available pressure (kPa) between

heating flow and return

(10 kPa = 1 m WG)

Bypass fully shut

Open 1/4 turn

Open 1/2 turn

Open 1 turn

Open 2 turns

0500 1000

Flow rate through heating system (I/h)

Pom 052

Pump:

The performance of the pump varies according to the pump bypass setting, see diagram 3.

Diagram 3

Diagram 4

Hab 271a

Net weight: 41 kg

Gross weight: 43 kg

The boiler is delivered in two

separate packages:

- The boiler

- The flue system

Clearances

The boiler can be installed with

the following clearances:

50 mm either side of the boiler

600 mm to the front of the boiler

300 mm below the boiler

378

410

857

234

623

802

INSTALLATION INSTRUCTIONS

DIMENSIONS

Shy 131b

3-Ignition module

4-Heating temperature adjuster

6-Pressure gauge

7-non-return valve

8-Expansion vessel

9-Pump

10 - Automatic air vent

11 - Burner

12 - Burner pressure test point

13 - Heat exchanger

14 - Gas valve

16 - Heating and hot water thermistor

17 - Ignition electrode

19 - Overheat thermostat

20 - Flame sense electrode

21 - Loss of water pressure switch

22 - Fan

23 - Air pressure switch

24 - Gas cock

A- Heating return

B- Cold water inlet

C- Heating flow

D- Domestic hot water flow

E- Gas supply

Diagram 5

INSTALLATION INSTRUCTIONS

BOILER SCHEMATIC

AB CD E

23 22

IHL

Ven 060b

Diagram 6

Minimum dimensions (in mm) for the positioning of flue terminals

A-Under a window .............................................. 300

B-Under an air vent ............................................ 300

C-Under a gutter ................................................. 75

D-Under a balcony ............................................. 300

E-From an adjacent window ............................ 300

F-From an adjacent air vent ............................. 300

G-From vertical drain pipes or soil pipes .......... 75

H-From an external corner of the building ...... 300

I-From an internal corner of the building ....... 300

L-From the ground or from another floor ........ 300

M- Between two terminals vertically .................. 1500

N-Between two terminals horizontally .............. 300

TERMINAL POSITIONS

The minimum acceptable spacings from the termi-

nal to obstructions and ventilation openings are

shown in diagram 6 :

Cupboard or compartment ventilation

The boiler can be fitted in a cupboard or

compartment without the need for additional per-

manent high and low level ventilation

HEATING SYSTEM DESIGN

The combitek F 23 E is compatible with any type of

sealed system installation, i.e. radiators, fan

convectors etc.

Pipe sectional areas shall be determined in

accordance with normal practices, using the pump

curve,referto‘TechnicalData’.The distributionsystem

shall be calculated in accordance with the output

requirements of the actual system, not the maxi-

mum output of the boiler. However, provision shall be

madetoensure sufficientflowsothatthetemperature

difference between the flow and return pipes is less

than or equal to 20oC. The minimum flow is 500 l/h.

The piping system shall be routed so as to avoid any

air pockets and facilitate permanent venting of the

installation. Bleed fittings shall be provided at every

high point of the system and on all radiators.

The total volume of water permitted for the heating

system depends, amongst other things, on the static

head in the cold condition. The expansion vessel on

the boiler is pressurised at 0,5 bar (corresponding to

a static head of 5m wg.) and allows a maximum

system volume of 140 litres for an average

temperature of 75oC and a maximum service pres-

sure of 3 bar. This pressure setting can be modified at

commissioning stage if the static head differs.

Provision shall be made for a drain valve at the

lowest point of the system.

Thermostatic radiator valves are permitted.

A suitable WRC approved filling loop must be fitted

to enable correct filling of the system.

In all cases, it is ESSENTIAL that the system be

thoroughly flushed prior to installing the new boiler.

DOMESTIC HOT WATER SYSTEM DESIGN

Copper tubing must be used for the domestic hot

watersystem.Unnecessary pressurelosses shouldbe

avoided.

The domestic hot water supply pressure must be

between 0.5 and 10 bar. If the pressure exceeds 3

bar, a pressure reducing valve must be fitted.

Hard water areas

In areas where the water hardness exceeds 200 mg/

litre,it isrecommendedthat asuitablescale reducing

device is fitted.

Heating system connections - Pipe Ø 22 mm.

Hot water system connections - Pipe Ø 15 mm.

Gas connection - Pipe Ø 22mm.

Safety valve discharge

WARNING: It must not discharge above an entrance

or window or any type of public access area.

Connect the safety valve discharge pipe to the

valve, the discharge must be extended using not

less than 15 mm o.d. pipe, to discharge in a visible

position outside the building, facing downward,

preferably over a drain. The pipe must have a

continuous fall and be routed to a position so that

any discharge of water, possibly boiling or steam,

cannot create any danger to persons, damage to

property or external electrical components and

wiring. Tighten all pipe connection joints.

Gas connection

The supply from the governed meter must be of

adequate size to provide a constant inlet working

pressure of 20 mbar (8 in wg).

To avoid low pressure problems, it is recommended

that the supply is taken to the boiler using 22 mm

pipe as far as possible.

On completion, the gas installation must be tested

using the pressure drop method and purged in

accordance with the current issue of BS6891.

Gas Safety (Installation and Use) Regulations.

In your interests and that of gas safety, it is the law

that ALL gas appliances are installed and serviced

by a competent person in accordance with the

above regulations.

INSTALLATION INSTRUCTIONS

Statutory requirements

The installation of this boiler must be carried out by

a competent person in accordance with the rele-

vant requirements of the current issue of:

The Gas Safety (Installation and Use) Regulations

The Building Regulations

The local water company Bylaws

The Building Standards Regulations (Scotland)

The Health and Safety at Work Act

Sheet metal parts

WARNING: When installing or servicing this boiler,

care should be taken when handling the edges of

Boiler connections

AHeating return

BCold water mains inlet

CHeating flow

DHot water outlet

EGas connection

FSafety valve discharge connection

Pla 275

ABCDE

Diagram 7a

Diagram 7b

Pla 277

Isolating cock

Flow restrictor

Filter Fibre

washer

sheet metal parts to avoid the possibility of personal

injury.

Installing the boiler

Prior to installing the boiler, the system must be

thoroughly flushed to eliminate any foreign bodies

and contaminents such as filings, solder, particles,

oil, grease etc.

Note: Solvent products could cause damage to the

system.

To install the boiler, proceed as follows:

· Allowing sufficient clearances for servicing/

repair, place the template on the wall

Determine the position of the flue hole and drill

hole for flue, preferably using a 120 mm core

drill.

· Drill two holes for the hanging bracket, Plug

and screw to wall.

· Fasten lower spacing brackets to boiler (see

template)

· Remove template.

· Hang the boiler on the hanging bracket.

Ins 071a

Diagram 8

Boiler

Template

INSTALLATION INSTRUCTIONS

BOILER INSTALLATION

378

410

857

234

802

110665 B

Ø 105

Ø 8Ø 8 Ø 8

55 55 57,5 57,5

691 mm

WALL SIDE

BOILER SIDE

Spacing plate must be attached to

boiler prior to hanging

120 mm

65 mm

HORIZONTAL FLUE INSTALLATION

• Fit gasket (H) onto underside of elbow (C)

• Carefully insert ‘o’ rings (J) into upper and lower

parts of inner elbow

• Fit elbow onto boiler using screws provided (I)

• Offer flue pipes to elbow, note that pipe (B) should

be inside pipe (A) before connection. Push pipe

(B) into inner elbow socket and connect pipe (A)

with collar (D). Locking clips (E) are used to lock

collar into position.

• Parts (F) and (G) are used to seal brickwork gaps

if required. If using part (G) to seal inner wall, this

should be placed over flue before installation.

Calculation of flue cutting lengths

· Measure wall thickness e(mm)

· For side flues, measure distance from inside face of

the side wall to the centre line of the boiler and

subtract 205 mm to get dimension a(mm) see

diagram 10.

· Refere to table 1 for the cutting lenghs of both

the inner and outer flue pipes for each of the

various flue options available.

·Important: All flue cutting lengths must be

measured from the terminal end of the flue pipes,

see diagram 11.

· Whenthedimensionxmeasuredonsite isgreater

than that given in table1a flue extension kit will be

required, refere to table 2 for details.

INSTALLATION INSTRUCTIONS

Diagram 9

Pho 422

The flue kit 86285 is 1000 mm long and com-

prises:

- Outer pipe .................................................... A

- Inner pipe ....................................................... B

- Flue elbow..................................................... C

- Fixing collar ................................................... D

- Locking clips .................................................. E

- External rubber sealing collar ..................... F

- Internal flange .............................................. G

- Gasket ........................................................... H

- Screws.............................................................. I

- 'O' rings ........................................................... J

Table 1

Flue cutting lengths

Cutting length (mm)

Flue option outer pipe inner pipe Comments

Top outlet e + 144 e + 224 maximum

rear flue wall thickness "e"

without

extension

511 mm

Table 2

Number of extension kits required

Flue option Dimension 'X' No. of

extension kits

Side flue 745 to 1745 mm 1

(left or right) 1527 to 2745 mm 2

Hab 210

Diagram 10

ee a

Ven 089

Diagram 11

Cutting length

Outer pipe

Inner pipe

Cutting length

Maximum horizontal flue run 3m

For each 90oflue bend fitted, reduce overall flue

length by 1 m.

For each 45oflue bend fitted, reduce overall flue

length by 0.5 m.

Horizontal flue kit 86285

Flue extension kit 85091

90obend kit 85092

45obend kit 85093

INSTALLATION INSTRUCTIONS

VERTICAL FLUE INSTALLATION

A .................................................................... Gasket

B ..................................................... Vertical adaptor

C ....................................................................‘O’ ring

D....................................................................... Collar

E ...................................................................... Clamp

F ...................................................................... Screws

G .................................................................. Terminal

H ...................................................................... Screws

· Fit gasket (C) onto underside of vertical adaptor

(B)..

· Carefully insert ‘O’ ring (A) into vertical adaptor

inner spigot.

· Fit adaptor correctly onto fan outlet.

·For flat roof installation, fit flat roof flashing collar

(part no. 85107)

· Fit flue terminal (L) onto roof ensuring flashing

makes a watertight joint.

·For pitch roof installation, fit pitch roof flashing

collar (part no. 85105)

· Fit flue terminal (G) onto roof ensuring flashing

makes a watertight joint.

NOTE: Maximum vertical height with no bends is 4 m.

Note: Should it be necessary to cut the flue, always

cut equal amounts from both inner and outer pipes.

Maximum vertical flue run 11.5m

For each 90oflue bend fitted, reduce overall flue

height by 1 m.

For each 45oflue bend fitted, reduce overall flue

height by 0.5 m.

Vertical flue terminal (Black) 85103

Pitched roof flashing 85105

Flat roof flashing 85107

Flue extension pipe 85099

90obend kit 85101

45obend kit 85102

Diagram 12

Show vertical kit adaptor & terminal

Diagram 12

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