CONTROLS AND LIGHTING

Lighting the THELIA 23 and THELIA SB 23 boilers
1 - Push in and hold 2 - The pilot lights. Check that pilot is alight by looking through the viewing window. 4 - Release : the pilot must remain ON, if the pilot does not remain lit, repeat the previous steps.

1 / ON

Diagram. 1
OPENING THE CONTROL PANEL COVER

3 - Wait for 20 seconds

Note : On pressing the ON button, the fan will be heard to run at full speed after which the ignition sequence will start and the pilot will light. Should the pilot fail to remain alight or go out for any reason, intentionally or unintentionally, always wait at least 3 minutes before trying to relight.
The control panel, located at the lower front of the boiler casing diag. 1 allows the boiler to be started, shut down, controlled and monitored during use. Control panel description (diag. 2 and 3) : 1 - "ON" push - button. 2 - "OFF" push - button. 4 - Boiler thermostat. 5 - Temperature gauge. 6 - Pressure gauge. 7 - Summer - Winter lever (THELIA 23, THELIA 23 E). Summer - Winter switch (THELIA SB 23). 30 - Domestic hot water temperature adjustment.
Lighting the THELIA 23 E boiler

Push in and release

Diagram. 2
BOILER CONTROL PANEL THELIA 23, THELIA 23 E

Hab 130

0 / OFF

90 110

Diagram. 3
BOILER CONTROL PANEL THELIA SB 23

Hab 044a

Hab 043a

Hab 129

OPERATION - CHECKS

THELIA 23, THELIA 23 E

THELIA SB 23
HEATING + HOT WATER q Place the selector lever (diagram. 4) to position (winter). In this position the domestic hot water will have PRIORITY.
HEATING ONLY Turn the selector switch (diagram. 8) to position (winter).

Diagram. 4

Diagram. 8
Hot water : Turn the knob (diagram. 5) in order to obtain a water temperature suited to the demand.

Hab 128

Diag. 5

Reg 012

Heating : turn the knob (diagram. 6) in order to obtain a water temperature suited to the demand, and adjust the room thermostat to the desired temperature.

Diag. 6

Note : If you are out for a few days, set the button (diagram. 9) to the minimum value in order to protect the boiler from frost. In case of prolonged absence, refer to Draining section page 9.
Note : If you are out for a few days, set the button (diagram. 6) to the minimum value in order to protect the boiler from frost. In case of prolonged absence, refer to Draining section page 9. HOT WATER ONLY Place the selector lever (diagram. 4) to position (summer). Heating is switched OFF. The boiler will provide hot water only. Turn the knob (diagram. 5) in order to obtain a water temperature suited to the demand.

Diagram. 14

Diagram. 15
Helpful Hint. If you get confused and wish to start again, press the "Reset" (res) button and the timeclock will go back to the internal factory set programme. You can now reset the current time and start again.

-.-on off

Diagram. 16
To Check the Programme "On" and "Off" Times The programmed "On" and "Off" times can be checked at any time by moving the slide switch from "Auto" to "C1". Successive presses of the "Enter" button will then show the "On" and "Off" times. Always return the slide switch to "Auto" to return to normal timed working.

Diagram. 17

To Set the "Hold" or "Holiday" Feature The timeclock has a "Hold" or "Holiday" feature which can be set, if required, to keep the central heating "On" or "Off" for a period between one hour and twenty seven days. This can be used, for example to keep the central heating "Off" during a holiday. After the programmed time has gone by, the boiler returns to its normal programmes. To set the "Hold" or "Holiday" feature carry on as follows: Place the slide switch to "Timer", the letter "h" will appear on the display, see diagram 17. " and " Using the " time required. " buttons, set the Hold
After a hold period of twenty three hours has been exceeded, the "h" symbol on the display will change to a "d". The "hold" time will now be in days, instead of hours, see diagram 18. Use the "On/Off" button to set the boiler to the required operation during the "Hold" period. Place the slide switch to "Auto". After the programmed hold time, the boiler will return to normal timed working.

Diagram. 18

DRAINING
Protection against freezing If the boiler is to be out of use for any long periods during severe weather conditions, it is recommended that the whole system, including the boiler, be drained to avoid the risk of freezing. If in doubt, consult your servicing company. 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, indicated by the pressure gauge, you must contact the installer or servicing company.

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 installation/servicing company.

SERVICING/MAINTENANCE

To ensure the continued efficient and safe operation of the boiler it is recommended that it is checked and serviced at regular intervals. The frequency of servicing will depend upon the installation conditions and usage but, in general, once a year should be enough 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 incorrect fitting may result in faulty operation. If in doubt contact your installation/ servicing company.

TECHNICAL DATA

A ELI TH

ELI A SB

Heating useful output,

adjustable from.

(kW) (BTU/H) to. (kW) (BTU/H) (%) (C) (l) (l) (bar) () () (kW) (BTU/H) to. (kW) (BTU/H) (C) (l/min.) (l/min.) (bar) (bar) (V) (A) (W)
8,9 8,9 8,9 30,000 30,000 30,000 23,3 23,3 23,3 80,000 80,000 80,000 82,6,82,6,82,6,100 230 0,73 130
Efficiency Heating max. output temperature Heating regulation Heating system expansion vessel, effective capacity System max. capacity at 75C Safety valve, maximum service pressure Products outlet Fresh air inlet Output in hot water mode, automatically variable from.
adjustable by user between 30 and 87C
8,9 8,9 30,000 30,000 23,3 23,3 80,000 80,0,230 0,11 0,230 0,73 130
Max. hot water temperature Operating threshold flow rate in sanitary hot water mode Specific flow rate (for 30C temperature rise) Mini. supply pressure Max. supply pressure Electrical supply Amperage Max. power absorbed

Natural Gas (G20)

Pilot injector Burner injector Inlet pressure Gas rate (maximum) Gas rate (minimum) Pilot injector Burner injector Inlet pressure Gas rate (maximum) Gas rate (minimum) Pilot injector
(mm) (mm) (mbar) (m3/h) (m3/h) (mm) (mm) (mbar) (kg/h) (kg/h) (mm) (mm) (mbar) (kg/h) (kg/h) (mm) (mm) (mbar) (m3/h) (m3/h)
0,28 1,2,70 1,13 0,18 0,2,01 0,84 0,18 0,1,98 0,83
1,2,70 1,13 0,2,01 0,84 0,1,98 0,83 2,3,88 1,63
Propane (G31) Town gas (G130)

Butane (G 30)

Burner injector Inlet pressure Gas rate (maximum) Gas rate (minimum) Pilot injector Burner injector Inlet pressure Gas rate (maximum) Gas rate (minimum)

Burner pressure (mbar)

Heat output (kW) 8,23,3 (Btu/h) 79552 Heat input (kW) 11,9 13,1 14,2 15,3 16,4 17,5 18,7 19,9 21,1 22,2 23,4 24,6 25,6 26,8 28,3 (Btu/h) 96602 GAS
G 20 G 30 G 31 G 130 (mbar) (mbar) (mbar) (mbar) 1,8 4,1 5,3 0,5 2,2 5,0 6,4 0,6 2,6 5,9 7,5 0,7 3,1 6,8 8,7 0,8 3,5 7,8 10,0 0,9 4,0 8,9 11,4 1,0 4,5 10,2 13,0 1,2 5,1 11,5 14,7 1,3 5,8 12,9 16,5 1,5 6,4 14,4 18,4 1,7 7,1 15,9 20,4 1,8 7,8 17,5 22,4 2,0 8,5 19,1 24,5 2,2 9,3 20,9 26,7 2,4 10,4 23,3 29,8 2,7

Pressure loss between flow and return boiler connections (metres head)
Pump The performance of the pump, running at maximum speed, varies according to the pump bypass setting, see diagram 19.

by pass fully closed

500 1000

Water flowrate (l/h)

open 1 tu rn open 2 turn s open 3 turns by pass fully open

Diagram. 19

DIMENSIONS

Diagram. 20

The boiler is delivered in three separate packages : - the boiler itself - its connection plate - the flue system. THELIA 23, THELIA 23 E Net weight : 41 kg Gross weight : 43 kg THELIA SB 23 Net weight : 40 kg Gross weight : 42 kg

Hab 132

Pom 023

BOILER SCHEMATIC

"ON" push - button. "OFF" push - button. Spark generator. Central heating water temperature adjustment. Temperature gauge. Pressure gauge. Summer - Winter lever. Expansion vessel. Pump. Automatic air vent. Burner. Heat exchanger air vent. Heat exchanger. Multi - functional control. A B C D F Safety electrovalve (THELIA 23 E only). Hight limit thermostat. Ignition electrode. Pilot (not THELIA 23 E) Hot water thermistor. Flame sense electrode (THELIA 23 E only). Loss of water switch. Fan. Airflow switch. Domestic hot water temperature adjustment.
- Heating return - Cold water - Heating flow - Domestic hot water out - Gas inlet

Diagram. 21

Shy 067a
"ON" push - button. "OFF" push - button. Spark generator. Central heating water temperature adjustment. Temperature gauge. Pressure gauge. Expansion vessel. Pump. Automatic air vent. Burner. Heat exchanger air vent. Heat exchanger. Multi - functional control. Hight limit thermostat. Ignition electrode. Pilot Hot water thermistor. Loss of water switch. Fan. Airflow switch.
A - Heating return C - Heating flow F - Gas inlet

Diagram. 22

Shy 068a

CONNECTION PLATE

Diagram. 23
From left to right, the connection plate is equipped with : A - Heating return with isolating valve (m). B - Cold water inlet with isolating valve (p). C - Heating flow with isolating valve (q), drain screw (r) and safety valve (s). D - Domestic hot water out. E - Electrical connector. F - Gas service cock.
Filters and washers : 1 - Fibre washer 2 - Metal filter 3 - Flow regulator 4 - Plastic filter 5, 6 & 7 - Black graphite

3 A B C

m D F p

Pla 105a

From left to right, the connection plate is equipped with : A - Heating return with isolating valve (m). C - Heating flow with isolating valve (q), drain screw (r) and safety valve (s). E - Electrical connector. F - Gas service cock.
Filters and washers : 1 - Fibre washer 2 - Metal filter 5 & 7 - Black graphite

m p r 5 q s 7 F

Pla 116a
PIPING SYSTEM INSTALLATION
Water connection Connect the water pipes to the fixing jig connecting plate using the copper tails supplied. Warning : To prevent damage to the isolating cocks, do not solder joints or fittings with the copper tails connected. 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 q The supply from the governed gas meter must be of adequate size to provide a constant inlet working pressure of 20 mbar (8 in wg). To avoid low gas pressure problems, it is

Diagram. 24

recommended that the supply is connected using 22 mm pipe wherever possible. q On completion the gas installation must be tested using the pressure drop method and purged in accordance with the current issue of BS6891 q Connect the gas supply to the gas service cock and then the gas service cock to the union on the gas inlet elbow, see diagram 24. q If it is an existing LPG installation ensure that it is capable of providing sufficient additional quantity of gas. 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.

HEATING SYSTEM DESIGN

The boilers are compatible with any type of installation. q Heating surfaces may consist of radiators, convectors or fan assisted convectors. Caution : if the materials used are of different types, corrosion phenomena may develop. In such case, adding a corrosion inhibitor in heating system water is recommended, in the proportions specified by the manufacturer, to prevent gas and oxide formation. q Pipe sectional areas shall be determined in accordance with normal practices, using the output/pressure curve (diagram. 19). The distribution system shall be calculated in accordance with the output corresponding to the actual system demand, not the maximum output of that the boiler. However, provision shall be made to ensure sufficient output so that the temperature difference between the flow and return pipes be less than, or equivalent to 20C. The minimum flow is 500 l/h. q 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 piping system and on all radiators. q The total volume of water permitted for the heating system depends, amongst other things, on the static head in cold condition. The expansion vessel integrated into the boiler is pressurised at 0.5 bar in the delivered condition (corresponding to a static head of 5 m WG) and allows a maximum volume of 140 litres for an average temperature of 75C in the radiator system, and a maximum service pressure of 3 bar. This pressure setting can be modified at boiler commissioning stage if the static head is different. q Provision shall be made for a drain valve at system's lowest point. q Where thermostatic valves are fitted, not all radiators must be equipped with this type of valve and particulary where the room thermostat is installed. In the case of an existing installation, it is essential that the radiator system be thoroughly flushed prior to installing the new boiler.

Ins 016b

DOMESTIC HOT WATER SYSTEM DESIGN
Copper tubing must be used for the domestic hot water system. Unnecessary pressure losses should be avoided. q The boiler may operate with a minimum supply pressure of 0.3 bar, but under reduced flow rate. Best operating comfort will be obtained from a supply pressure of 1 bar.

q q In some installations it will be necessary to provide a means of accommodating expansion water. A domestic hot water expansion vessel is available as an accessory from your supplier.

BOILER LOCATION

Clearances The position of the boiler must be such that there is adequate space for servicing. The recommended clearances are: 50mm either side of the boiler. 600mm at the front of the boiler. 300mm below the boiler. Fixing jig The fixing jig is supplied in three parts : 1) The connecting plate which allows the connection and soundness testing of all the pipework before the boiler is fitted and helps support the weight of the boiler. 2) The hook which supports the weight of the boiler. 3) The template which ensures the hook and the connecting plate are correctly fitted relative to one another. Place template on wall in required position making allowance for the necessary clearances etc. Mark the position of the holes for the hook and the connecting plate. Drill, plug and fix the connecting plate and hook to the wall using suitable screws. Check that both the connecting plate and hook are level. If the boiler is not installed immediately, protect the various couplings to prevent any ingress of foreign materials E.G. plaster, paint, etc. Terminal position The minimum acceptable spacings from the terminal to obstructions and ventilation openings are as shown in diagram 26. The boiler must be installed so that the terminal is exposed to the external air.

Diagram. 25

255 mini

50 mini

Note. Under certain weather conditions the flue may produce a plume of condensation. If the terminal is fitted within 850mm of a plastic or painted gutter or 450 mm of painted eaves, an aluminium shield of a minimum length 750 mm should be fitted to the underside of the gutter or painted surface. Terminal guard If a terminal guard is required, a suitable guard with integral deflector can be obtained from your supplier, Saunier Duval part number 85373. Cupboard or compartment ventilation The boiler can be fitted in a cupboard or compartment as long as adequate permanent high and low level ventilation is provided in accordance with ventilation requirements.

Ins 012a

Diagram. 26
Minimum dimensions (in mm) for the positioning of flue terminals A B C D E F G H I L M N under a window... 600 under an air vent.... 600 under a gutter.... 300 under a balcony... 300 from an adjacent window... 400 from an adjacent air vent.. 600 from vertical or horizontal air pipes... 600 from an external corner of the building.. 300 from an internal corner of the building.. 1000 from the ground or from another floor.. 1800 between two terminals vertically.. 1500 between two terminals horizontally.. 1000
G O C E P A B D I H L F M

Ven 060a

BOILER INSTALLATION
Statutory requirements The installation of this boiler must be carried out by a competent person in accordance with the relevant requirements of the current issue of: The Gas Safety (Installation and Use) Regulations The Building Regulations The local water company Byelaws 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 sheet metal parts to avoid the possibility of personal injury. Installing the boiler Prior to starting work, the system must be thoroughly flushed with a suitable cleaning agent so as to eliminate any foreign bodies and contaminants such as filings, weld particles, oil, grease etc. NOTE : solvent products could cause damage to the system.
q Engage boiler upper part onto the retaining strip (diagram 27). q Allow the boiler to seat down into position onto the support plate (diagram 28). q Fit the filter and washers, strictly adhering to the sequential order and directions shown on diagram 23. Connect the various couplings between the boiler and connection plate.

Diagram. 27

Diagram. 28
REAR OUTLET FLUE ASSEMBLY
The boiler is supplied for rear outlet flue connection. Alternatively, the boiler is designed to allow the flue system to be connected to the top of the boiler, top outlet flue connection. For top outlet flue installation refer to "Top outlet flue". Rear outlet flue - Kit 104294 The rear outlet flue system consists of two parts, a PVC outer pipe and an aluminium inner, they are positively locked together when assembled. The flue kit 104294, see diagram 29, is 750 mm long and comprises : - Outer PVC pipe... A - Inner aluminium pipe.. B - External rubber sealing collar.. C - Rubber connecting sleeve.. D - Flue elbow... E - Internal rubber flange.. F

A - Direct rear outlet flue Mark correct position of hole from template using hole between hook and connecting plate. B - Rear outlet side flue Mark the horizontal centre line for the hole on the rear wall. Extend the horizontal centre line to the side wall and mark the vertical centre line of the flue hole as shown in diagram 30.

Ins 021

Ins 020
Important : when cutting the flue hole and when extending the flue centre line to a side wall remember that the flue system must have a fall of about 35 mm per metre of flue DOWNWARD from the boiler. There must NEVER be an upward incline. From the back of the boiler, loosen the screws holding the two flue connector clamps (diag. 31) and slide them away from flue outlet. Remove straight flue connector and fit elbow (E) into rear of the boiler, fitting flush end of elbow into position and tighten screws, see diag. 32.

Diagram. 30

Diagram. 29

Diagram 31

Pho 025 Ins 012a

Diagram 32

Cutting the flue hole Making allowance for the slope of the flue, cut the hole in the external wall, preferably using a 115 mm diameter core drill. If necessary, make good at both the inner and outer surface of the wall. Important : before cutting the hole for flues directly to the rear of the boiler, always cover the fixing jig to make sure it is not damaged.
Calculation of flue cutting lengths Measure the wall thickness e (mm).

Diagram 33

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 33 or 34.

Diagram 34

Hab 208

Hab 209

Pho 026

Pho 086

Refer to table 1 for the cutting lengths of both the PVC and the aluminium flue pipes for each of the various flue options available. Important. All cutting lengths must be measured from the locking fitting end of the flue pipes, see diagram 35.

Diagram 35

PVC pipe

Cutting length

Extension kits When the distance X measured on site is greater than given in table 1, a flue extension kit will be required, refer to table 2. Assembly of extended flue The flue extension kit, see diagram 36, comprises: - PVC pipe... A - PVC connector... B - Aluminium pipe with fitted connector. C - Triangular pipe support.. D - Two fixing screws.. (not shown)

Table 1

Flue option Cutting length (mm) PVC outer pipe e + 70 aluminium inner pipe e + 195 Comments

Locking fitting end

Aluminium pipe

Ven 083

Diagram 36

Ven 084 Ven 085

maximum wall thickness "e" without extension 511 mm maximum distance "X" without extension 797 mm maximum distance "X" without extension 739 mm

Back outlet Rear flue

Table 2
Flue option Dimension "X" N of extension kits 1 2
Back outlet Side flue to left (diagram 5)

e + a + 35

e + a + 155
Back outlet e + a + 90 Side flue to right (diagram 6)

e + a + 215

Side flue (left) Side flue (right)
797 to 1527 mm 1527 to 2257 mm 739 to 1469 mm 1469 to 2199 mm
The PVC connector is used to connect the PVC extension pipe to the PVC pipe supplied with the boiler or to another extension pipe, if more than one is used. It is a secure push fit onto the pipe ends, no adhesive is required. The connector fitted to the aluminium extension pipe is fitted to the next extension pipe, if more than one is used. The two screws provided must be used to fasten the two pieces together once assembled, using the pre-drilled holes in both the connector and pipe end, see diagram 37. The triangular pipe support should be slid onto the aluminium pipe before final assembly and positioned near the pipe joint to support and locate the inner pipe correctly within the outer PVC pipe.
Important : all cutting lengths should be measured from the locking fitting end of the pipe. Check before cutting. If the distance between the end of either of the cut pipes or the pipe connector will be 30 mm or less, refer to diagram 39, it will be necessary to reduce the length of both the PVC and aluminium extension pipes, and those supplied with the boiler, to achieve the required overall cutting length for the extended flue pipes. Note : if the length of any aluminium pipes other than the final extension pipes have to be reduced in this way, it will be necessary to drill two fixing holes in these pipes to match the fixing holes in the aluminium connector.

Diagram 37

Cutting lengths for extended flues Using the correct number of the extension kits, as table 2, assemble both the extended PVC and aluminium pipes by adding the extension pieces to the flue pipes supplied with the boiler. Do not fasten the aluminium pipes together at this stage. Mark and cut both extended flue pipes, referring to diagram 38, using the cutting lengths given in table 1.

Aluminium extension pipe

Connector

Fixing screws

Aluminium flue pipe

Diagram 38

Aluminium pipe Extension aluminium pipe

Diagram 39

Extension aluminium pipe

Cutting lenght

PVC pipe Extension PVC pipe
This dimension must be 30 mm or greater

Ven 086 Ven 087 Ven 088a Pla 105a Pho 087

Extension PVC pipe

Installation of flue assembly q Fit the PVC pipe (A) into the wall with locking fitting end to outside. q Fit the rubber sealing collar (C) into the groove at the outer end of the PVC pipe. q Pull the PVC pipe inwards to bring the rubber sealing collar hard against the external wall, see diagram 40. q Spot drill two holes using a 2.5 mm drill through the flange and PVC pipe. q Fasten the flange to the PVC pipe using the two self tapping screws provided. q From inside, fully insert the aluminium pipe (B), locking end first, into the PVC pipe. Turn aluminium pipe anticlockwise, viewed from inside, as far as possible. q Fit the rubber connecting sleeve (D), plain end first, onto the end of the PVC pipe. Push it on as far as possible. q Lift the boiler and engage both fixing jig hooks in the two support brackets on the back of the boiler. q Lower the boiler until it rests on the outward facing lip at the centre of the connecting plate. q Make the connections between the boiler and connecting plate using the sealing washers, flow regulator and filters provided, see diagram 41. Important : the gas connection must be made first as there is no flexibility in this connection. Do not forget the sealing washer. q Connect the aluminium pipe onto the central outlet of either the straight flue connector or the flue elbow. To do this, the aluminium pipe must be held and turned clockwise, as viewed from inside. The aluminium pipe will move out from the PVC pipe and can be twisted onto the centre of the flue connector or elbow. q Make sure that aluminium pipe is firmly fixed either to the flue connector or elbow and is correctly locked into the PVC outer pipe. Note. The aluminium pipe is correctly fitted and locked only when the concentric spacer is FLUSH with the outermost end of the PVC pipe, see diagram 42. q After checking that the aluminium pipe is correctly fitted, pull the rubber sleeve towards the boiler and fit the flanged end fully over the spigot of the boiler flue connector or elbow, to make a seal.

Diagram 40

Diagram 41

m D F p r q s

Diagram 42

TOP OUTLET FLUE ASSEMBLY

Top outlet flue - Kit 85089 The boiler is supplied for rear outlet flue connection. For a top outlet flue :

Diagram 43

Unscrew and remove the four screws and circular blanking plate from the top of the boiler.

L K M J

Diagram 44

Pho 025

q From rear of boiler, unscrew and remove four screws securing flue elbow clamps (J) to the rear outlet.
Remove straight flue connector (K), plastic adaptor (L) and angled connector (M) and discard, see diagram 43.
Fit circular blanking plate, previously removed from top of boiler, onto rear outlet of boiler. Disconnect power supply and earth leads from fan motor. Unscrew and remove the two fan retaining screws, see diagram 44. Remove fan assembly from boiler. Unscrew and remove the three screws holding fan to mounting plate. Turn the fan body through 90 degrees in relation to the mounting plate to leave fan outlet pointing upward.

q Using the alternative set of three holes in the mounting plate, fasten the fan to the mounting plate, see diagram 45. q Disconnect air pressure switch tube from rear pressure tapping point and connect to pressure tapping point at top of boiler. q q

Diagram 45

Refit fan assembly into boiler.
Fit the two retaining lugs at the back edge of fan mounting plate onto back edge of flue hood opening and bring fan mounting plate up against flue hood. Reconnect power supply and earth leads to fan, the polarity is not important.

Diagram 46

Pho 034
Refit the two fixing screws.
To fit the flue proceed as follows : The flue kit 85089, see diagram 46, is 750 mm long and comprises: - Outer pipe... N - Inner pipe... O - External rubber sealing collar.. P - Plastic flange.. Q - Clamp and seal.. R - Gasket... S - 2 O rings... T - 4 screws... U - Elbow.. V Cutting the flue hole Follow the procedure described in the instructions for the rear outlet flue.

P O Q N R

Pho 088

Pho 032

Calculation of flue cutting lengths Measure the 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 205mm to get dimension a (mm), see diagram 47. Refer to table 3 for the cutting lengths 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 49. When the dimension X measured on site is greater than that given in table 3, a flue extension kit will be required, refer to table 4 for details. Installation of flue assembly q Fit the rubber sealing collar (P) into the groove at the outer end of the pipe (N).

Diagram 47

Table 3
Flue option Top outlet Rear flue
Fit the outer pipe (N) into the wall with the groove to the outside.
Cutting length (mm) PVC outer pipe e + 144 aluminium inner pipe e + 224 Comments maximum wall thickness "e" without extension 511 mm maximum distance "X" without extension 511 mm
Pull the pipe inwards to bring the rubber sealing collar hard against the external wall, see diagram 40.
q q Lift the boiler and engage both fixing jig hooks in the two support brackets on the back of the boiler. q Lower the boiler until it rests on the outward facing lip at the centre of the connecting plate.
Top outlet Side flue (right or left)

e + a + 115 e + a + 195

Make the connections between the boiler and connecting plate using the sealing washers, flow regulator and filters provided, see diagram 41.

Table 4

Flue option Side flue (right or left) Dimension "X" 745 to 1745 mm 1527 to 2745 mm N of extension kits 1 2

Diagram. 50a

Diagram. 50b
EXTERNAL CONTROLS CONNECTIONS THELIA 23, THELIA 23 E
EXTERNAL CONTROLS CONNECTIONS THELIA SB 23
No external controls Factory fitted link Boiler connector
No external controls Factory fitted link
Room thermostat only Room thermostat only External controls plug Voltage free room thermostat External controls plug
Voltage free room thermostat

Do not connect

Room thermostat and time clock Time clock Voltage free room thermostat
Timeclock, room thermostat and cylinder thermostat

External controls plug

Time clock
Voltage free cylinder thermostat

sch 070 UK

The commissioning and first firing of the boiler must only be done by a competent person. Gas installation q It is recommended that any air is purged from the pilot supply pipe (THELIA 23 and THELIA SB23) and from the inlet test point (THELIA 23E). q Isolate boiler from the electrical supply THELIA 23 and THELIA SB 23 Disconnect the supply pipe from the pilot injector tube by unscrewing nut. q Carefully pull end of supply pipe downwards from the tube. Push in and hold black (ON) button until gas is present at the end of the pipe. q Immediately release black button and reconnect pipe to pilot injector tube. DO NOT OVERTIGHTEN NUT. q Check for gas soundness with black button pushed in.

Diagram. 51

Diagram. 52

Diagram. 53

THELIA 23E q Remove screw from inlet test point at rear of multi-functional control. q Push in and hold black (ON) button until gas is present at the inlet test point. q Immediately release black button and replace screw to inlet test point. q Check for gas soundness with black button pushed in. Filling the system q With the selector (diagram. 51 or 52) in the winter position or , open the shut-off valves (q, m and p diagram. 53) (the slot of the screw corresponds to flow direction), the bleed plug situated on the pump (diagram. 54), and the bleed valves. q Open the heat exchanger bleed valve (diagram. 55) and bleed each radiator until a continuous jet of water is obtained. Screw the cap back tight. q Do not close the pump bleed plug. q Open the various water taps to bleed the system q Make sure that pressure gauge pointer reads between 1 and 2 bar. Important : - When venting air from the boiler, do not touch the Schrader valve on the expansion vessel, it is NOT a vent. - Before starting the boiler, turn the pump impellor to make sure it is free to move. - Unscrew black cap on front of pump. - Using screwdriver, push in pump spindle and turn pump impellor 3 to 4 times. DO NOT HIT SPINDLE. Replace black cap. First starting-up Turn the selector (diagram. 51 or 52) to or position. q Set the room thermostat for the maximum temperature and check that any external controls, if fitted, are calling for heat.

Diagram. 54

Diagram. 55

Reg 008

Reg 007

Ins 017a

q Turn the knob (diaDiagram. 56 gram. 56) to switch the boiler ON and OFF: clockwise to increase the temperature, anti-clockwise to decrease. The burner will automatically turn ON at full rating, at reduced rating, or will turn OFF. q Allow the temperature to rise to the maximum value, with all radiator valves open. The temperature rise will cause release of the gases contained in the water of the central heating system : - Gases driven toward the boiler will be automatically exhausted through the automatic air vent. - The gases trapped at the highest point of the system must be released by bleeding the radiators. On reaching maximum temperature, the boiler should be turned off and the system drained off as rapidly as possible whilst still hot. q Refill the system to a pressure of 1 bar and vent as before. q Restart the boiler and operate until maximum temperature is reached. Shut down the boiler and vent the heating system. If necessary, top up the heating system and make sure that a pressure of 1 bar is indicated on the pressure gauge when the system is COLD. Reg 012
the given figure, check the gas inlet pressure as follows: q Shut down boiler. q Remove screw from inlet test point at rear of multi-functional control. q Connect a suitable pressure gauge. q Start boiler as described in Instructions for Use q Check that the inlet pressure reading on the gauge matches that given in Technical Data for the type of gas being used. q Shut down boiler. q Remove the pressure gauge, replace test point screw and check for gas soundness. q If the gas pressure is incorrect, refer to the Fault Finding section in servicing instructions. q If inlet pressure is below that given, the gas supply pipework/meter must be checked and any fault corrected. q In the case of an LPG installation, check the storage tank or cylinder, regulator and pipework.

Diagram. 57

Starting the boiler Before starting the boiler check that: - The gas meter tap is open. If using butane or propane, check that valve on storage cylinder or tank is open. - The boiler gas service cock is open. - The boiler is connected to the electrical supply and switched on. - The selector lever is in the left hand position. Gas pressures The main burner pressure should be checked during commissioning to make sure the correct input is obtained. Proceed as follows : q Shut down boiler. q Remove screw from test point on main burner, below sealed chamber of boiler (see diag. 57). q Connect a suitable pressure gauge. q Set selector lever to right hand, heating and hot water position. q Start boiler as described in Instructions for Use q Set control thermostat to maximum, fully clockwise, and check that any external controls are calling for heat. q Check that the reading on the gauge matches that given in Technical Data for the type of gas being used. q Move the selector lever to the left hand position, remove the pressure gauge, replace test point screw and check for gas soundness. q If measured burner pressure differs greatly from

Energy Performance Certificate
Flat Old Lansdowne Road MANCHESTER M20 2WU Dwelling type: Date of assessment: Date of certificate: Reference number: Total floor area: Ground-floor flat 01 October October 2008 9358-2819-6605-0508-m
This home's performance is rated in terms of the energy use per square metre of floor area, energy efficiency based on fuel costs and environmental impact based on carbon dioxide (CO 2) emissions.

Energy Efficiency Rating

Current
Very energy efficient - lower running costs

(92 plus)

Environmental Impact Rating (CO 2)

Potential

Very environmentally friendly - lower CO 2 emissions

A B C D E F G

EU Directive 2002/91/EC
(81-91) (69-80) (55-68) (39-54) (21-38) (1-20)

(81-91) (69-80)

(55-68) (39-54) (21-38) (1-20)
Not energy efficient - higher running costs
Not environmentally friendly - higher CO 2 emissions

England & Wales

The energy efficiency rating is a measure of the overall efficiency of a home. The higher the rating the more energy efficient the home is and the lower the fuel bills are likely to be.
The environmental impact rating is a measure of a home's impact on the environment in terms of carbon dioxide (CO2) emissions. The higher the rating the less impact it has on the environment.
Estimated energy use, carbon dioxide (CO 2) emissions and fuel costs of this home Current
Energy use Carbon dioxide emissions Lighting Heating Hot water 408 kWh/m per year 6.0 tonnes per year 62 per year 728 per year 112 per year
Potential 272 kWh/m per year 4.0 tonnes per year 42 per year 510 per year 81 per year
Based on standardised assumptions about occupancy, heating patterns and geographical location, the above table provides an indication of how much it will cost to provide lighting, heating and hot water to this home. The fuel costs only take into account the cost of fuel and not any associated service, maintenance or safety inspection. This certificate has been provided for comparative purposes only and enables one home to be compared with another. Always check the date the certificate was issued, because fuel prices can increase over time and energy saving recommendations will evolve. To see how this home can achieve its potential rating please see the recommended measures.
The address and energy rating of the dwelling in this EPC may be given to EST to provide information on financial help for improving its energy performance. For advice on how to take action and to find out about offers available to help make your home more energy efficient call 012 or visit www.energysavingtrust.org.uk/myhome

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Flat Old Lansdowne Road, MANCHESTER, M20 2WU 05 October 2008 RRN: 9358-2819-6605-0508-6991

About this document

The Energy Performance Certificate for this dwelling was produced following an energy assessment undertaken by a qualified assessor, accredited by BRE Certification, to a scheme authorised by the Government. This certificate was produced using the RdSAP 2005 assessment methodology and has been produced under the Energy Performance of Buildings (Certificates and Inspections)(England and Wales) Regulations 2007 as amended. A copy of the certificate has been lodged on a national register. Assessor's accreditation number: Assessor's name: Company name/trading name: Address: Phone number: Fax number: E-mail address: Related party disclosure: BREC200151 Andrew Gait Hip-Inspector.com Ltd 24, Oak Grove, Poynton, Cheshire, SK12 1AE 965 andy@hip-inspector.com N/A
If you have a complaint or wish to confirm that the certificate is genuine
Details of the assessor and the relevant accreditation scheme are as above. You can get contact details of the accreditation scheme from their website at www.breassessor.co.uk together with details of their procedures for confirming authenticity of a certificate and for making a complaint.
About the building's performance ratings
The ratings on the certificate provide a measure of the building's overall energy efficiency and its environmental impact, calculated in accordance with a national methodology that takes into account factors such as insulation, heating and hot water systems, ventilation and fuels used. The average Energy Efficiency Rating for a dwelling in England and Wales is band E (rating 46). Not all buildings are used in the same way, so energy ratings use 'standard occupancy' assumptions which may be different from the specific way you use your home. Different methods of calculation are used for homes and for other buildings. Details can be found at www.communities.gov.uk/epbd Buildings that are more energy efficient use less energy, save money and help protect the environment. A building with a rating of 100 would cost almost nothing to heat and light and would cause almost no carbon emissions. The potential ratings in the certificate describe how close this building could get to 100 if all the cost effective recommended improvements were implemented.

About the impact of buildings on the environment
One of the biggest contributors to global warming is carbon dioxide. The way we use energy in buildings causes emissions of carbon. The energy we use for heating, lighting and power in homes produces over a quarter of the UK's carbon dioxide emissions and other buildings produce a further one-sixth. The average household causes about 6 tonnes of carbon dioxide every year. Adopting the recommendations in this report can reduce emissions and protect the environment. You could reduce emissions even more by switching to renewable energy sources. In addition there are many simple everyday measures that will save money, improve comfort and reduce the impact on the environment. Some examples are given at the end of this report.
Visit the Government's website at www.communities.gov.uk/epbd to: Find how to confirm the authenticity of an energy performance certificate. Find how to make a complaint about a certificate or the assessor who produced it. Learn more about the national register where this certificate has been lodged. Learn more about energy efficiency and reducing energy consumption.
QSapDesktop 6.5.x (SAP 9.82)

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Recommended measures to improve this home's energy performance
Flat Old Lansdowne Road MANCHESTER M20 2WU Date of certificate: 05 October 2008 Reference number: 9358-2819-6605-0508-6991
Summary of this home's energy performance related features
The following is an assessment of the key individual elements that have an impact on this home's performance rating. Each element is assessed against the following scale: Very poor / Poor / Average / Good / Very good.
Elements Walls Roof Floor Windows Main heating Main heating controls Secondary heating Hot water Lighting Description Solid brick, as built, no insulation (assumed) (another dwelling above) Suspended, no insulation (assumed) Fully double glazed Boiler and radiators, mains gas Programmer, no room thermostat None From main system Low energy lighting in 50% of fixed outlets Current performance Energy Efficiency Environmental Very poor Average Good Very poor Good Good Very poor Average Good Very poor Good Good

Current energy efficiency rating Current environmental impact (CO 2) rating

E 49 E 43

Low and zero carbon energy sources

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Recommendations
The measures below are cost effective. The performance ratings after improvement listed below are cumulative, that is they assume the improvements have been installed in the order that they appear in the table.
Lower cost measures (up to 500) 1 Low energy lighting for all fixed outlets 2 Upgrade heating controls Sub-total Higher cost measures Typical savings per year 130 Performance ratings after improvement Energy efficiency Environmental E 50 D 57 E 43 E 50
3 Replace boiler with Band A condensing boiler Total

138 268

Potential energy efficiency rating Potential environmental impact (CO 2) rating

D 66 D 60

Further measures to achieve even higher standards
None Improvements to the energy efficiency and environmental impact ratings will usually be in step with each other. However, they can sometimes diverge because reduced energy costs are not always accompanied by a reduction in carbon dioxide (CO 2) emissions.

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About the cost effective measures to improve this home's performance ratings
If you are a tenant, before undertaking any work you should check the terms of your lease and obtain approval from your landlord if the lease either requires it, or makes no express provision for such work.
Lower cost measures (typically up to 500 each)
These measures are relatively inexpensive to install and are worth tackling first. Some of them may be installed as DIY projects. DIY is not always straightforward, and sometimes there are health and safety risks, so take advice before carrying out DIY improvements.

1 Low energy lighting

Replacement of traditional light bulbs with energy saving recommended ones will reduce lighting costs over the lifetime of the bulb, and they last up to 12 times longer than ordinary light bulbs. Also consider selecting low energy light fittings when redecorating; contact the Lighting Association for your nearest stockist of Domestic Energy Efficient Lighting Scheme fittings.
2 Heating controls (room thermostat and thermostatic radiator valves)
A room thermostat will increase the efficiency of the heating system by enabling the boiler to switch off when no heat is required; this will reduce the amount of energy used and lower fuel bills. Thermostatic radiator valves should also be installed, to allow the temperature of each room to be controlled to suit individual needs, adding to comfort and reducing heating bills provided internal doors are kept closed. For example, they can be set to be warmer in the living room and bathroom than in the bedrooms. Ask a competent heating engineer to install thermostatic radiator valves and a fully pumped system with the pump and the boiler turned off by the room thermostat. Thermostatic radiator valves should be fitted to every radiator except for the radiator in the same room as the room thermostat. Remember the room thermostat is needed as well as the thermostatic radiator valves, to enable the boiler to switch off when no heat is required.

Higher cost measures (typically over 500 each)
3 Band A condensing boiler
A condensing boiler is capable of much higher efficiencies than other types of boiler, meaning it will burn less fuel to heat this property. This improvement is most appropriate when the existing central heating boiler needs repair or replacement, but there may be exceptional circumstances making this impractical. Condensing boilers need a drain for the condensate which limits their location; remember this when considering remodelling the room containing the existing boiler even if the latter is to be retained for the time being (for example a kitchen makeover). Building Regulations apply to this work, so your local authority building control department should be informed, unless the installer is registered with a competent persons scheme, and can therefore self-certify the work for Building Regulation compliance. Ask a qualified heating engineer to explain the options.
About the further measures to achieve even higher standards

Not applicable

For information on competent persons schemes enter "existing competent person schemes" into an internet search engine or contact your local Energy Saving Trust advice centre on 012.

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What can I do today?
Actions that will save money and reduce the impact of your home on the environment include:
Ensure that you understand the dwelling and how its energy systems are intended to work so as to obtain the maximum benefit in terms of reducing energy use and CO 2 emissions. Check that your heating system thermostat is not set too high (in a home, 21C in the living room is suggested) and use the timer to ensure you only heat the building when necessary. Turn off lights when not needed and do not leave appliances on standby. Remember not to leave chargers (e.g. for mobile phones) turned on when you are not using them. Close your curtains at night to reduce heat escaping through the windows. If you're not filling up the washing machine, tumble dryer or dishwasher, use the half-load or economy programme.

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Reduced Data SAP 2005 Input Data Summary
Flat Old Lansdowne Road MANCHESTER M20 2WU Located in: Date of assessment: Date of certificate: UPRN: Reference number: England & Wales 01 October October 9358-2819-6605-0508-6991

Country and Language

England & Wales, ENGLISH

Property overview

Dwelling type: Built form: Habitable rooms: Heated habitable rooms: Terrain Type: Flat Semi-detached Low Rise Urban or Suburban Main property age: Perimeters and areas: Transaction Type: 1900 - 1929 Internal Rental (Private)
Main property construction
Lowest floor Wall construction Roof construction Ground floor area = 87.41 room height = 3.12 Solid brick with unknown insulation Dwelling above, Unknown unknown perimeter = 28.56

Windows

Area of windows: Multiple glazing: Measured windows: Typical 100% installed before 2002 None
Shelter factors (flats and maisonettes only)
Floor number: Floors in block: Sheltered wall length: 3.02 m Flat corridor: Heat loss floor: Unheated Ground floor
Space heating and controls
Database Reference No: Heat emitter: Boiler flue type: Boiler fan type: Main heating controls: Secondary heating: Secondary heating fuel: 744 - Saunier Duval Sd 623: gas:combi:non-condensing::BF:fan:pilot Radiators Balanced flue Fan assisted 2102 - BOILER SYSTEM WITH RADIATORS OR UNDERFLOOR HEATING, Programmer, no room thermostat -
Water heating and cylinder
Water heating: Water heating fuel: Solar panel: Cylinder present: 901 - From main heating system 1 - Gas, mains gas No Immersion type:

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Miscellaneous
Open fireplaces: Ventilation type: Electricity meter: Wind turbines: 0 Natural Single 0 Photovoltaic cells: Low energy lights: Main gas supply: 0% 50% Yes

Measures

Selected: Low energy lights (E) Heating controls for wet central heating system (G) Upgrade boiler, same fuel (I) Cancelled:

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