Baxi Potterton WH65, WH46 User Manual

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WALL-MOUNTED CONDENSING BOILERS

WH 46 WH 65

INSTALLATION, OPERATION AND MAINTENANCE MANUAL

0085

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Dear Customer,

We are sure your new boiler will comply with all your requirements.

Do not dispose of this booklet as it contains the information, which will help you to run your boiler correctly and efciently.

Do not leave any parts of the packaging (plastic bags, polystyrene, etc.) within children’s reach as they are a potential source of danger.

POTTERTON GOLD HIGH OUTPUT boilers bear the CE mark in compliance with the basic requirements as laid down in the following Directives:

- Gas Directive 2009/142/CE

- Performance Directive 92/42/CEE

- Electromagnetic Compatibility Directive 2004/108/CE

- Low Voltage Directive 2006/95/CE

CONTENTS

INSTRUCTIONS PERTAINING TO THE USER

1. Instructions prior to installation 3

2. Instructions prior to commissioning 3

3. Commissioning of the boiler 4

4. Filling the boiler 10

5. Turning off the boiler 10

6. Prolonged standstill of the system. Frost protection 10

7. Servicing instructions 10

INSTRUCTIONS PERTAINING TO THE INSTALLER

8. General information 11

9. Instructions prior to installation 11

10. Boiler installation 12

11. Boiler size 13

12. Installation of ue and air ducts 13

13. Hydraulic system 16

14. Connecting the mains supply 20

15. Gas valve adjustment 27

16. Setting the boiler parameters 29

17. Control and operation devices 30

18. Positioning of the ignition and ame sensing electrode 31

19. Check of combustion parameters 31

20. Activating the chimney-sweep function 32

21. Annual service 32

22. Boiler schematic 33

23. Illustrated wiring diagram 34

24. Technical data 35

926.772.1 - GB/IEINSTRUCTIONS PERTAINING TO THE USER

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1. INSTRUCTIONS PRIOR TO INSTALLATION

This boiler is designed to heat water at a lower than boiling temperature at atmospheric pressure. The boiler must be connected to a central heating system and/or to a domestic hot water supply system in compliance with its performances and output power. The boiler must be installed by a Qualied Service Engineer ensuring that the following operations are carried out:

a) Careful checking that the boiler is t for operation with the type of gas available. For more details see the

notice on the packaging and the label on the appliance itself.

b) Careful checking that the ue terminal draft is appropriate; that the terminal is not obstructed and that no

other appliance exhaust gases are expelled through the same ue duct, unless the ue is especially designed to collect the exhaust gas coming from more than one appliance, in conformity with the standards and regulations in force.

c) Careful checking that, in case the ue has been connected to pre-existing ue ducts, thorough cleaning

has been carried out in that residual combustion products may come off during operation of the boiler and obstruct the ue duct.

d) To ensure correct operation of the appliance and avoid invalidating the warranty, observe the following

precautions:

1. Hot water circuit: If the water hardness is greater than 20 °F (1 °F = 10 mg calcium carbonate per litre of water) a

polyphosphate or comparable treatment must be used in response to current regulations.

2. Heating circuit

2.1. New system Before proceeding with installation of the boiler, the system must be cleaned and ushed out thoroughly

to eliminate residual thread-cutting swarf, solder and solvents if any, using suitable proprietary products.

To avoid damaging metal, plastic and rubber parts, use only neutral cleaners, i.e. non-acid and non

alkaline. The recommended products for cleaning are:

SENTINEL X300 or X400 and FERNOX heating circuit restore. The use of this product must be strictly

in accordance with the maker’s directions. Finally the system must be dosed with a suitable inhibitor at 1% system volume.

2.2. Existing system Before proceeding with installation of the boiler, the system must be cleaned and ushed out to remove

sludge and contaminants, using suitable proprietary products as described in section 2.1.

To avoid damaging metal, plastic and rubber parts, use only neutral cleaners, i.e. non-acid and non-

alkaline such as SENTINEL X100 and FERNOX heating circuit protective.

Remember that the presence of foreign matter in the heating system can adversely affect the operation

of the boiler (e.g. overheating, noisy operation, or failure of the heat exchanger may occur).

Failure to observe the above will render the warranty null and void.

2. INSTRUCTIONS PRIOR TO COMMISSIONING

Initial lighting of the boiler must be carried out by a qualied service engineer. Ensure the following operations are carried out: a) Compliance of boiler parameters with (electricity, water, gas) supply systems settings. b) Compliance of installation with the standards and regulations in force. c) Appropriate connection to the power supply and earthing of the appliance. Failure to observe the above will render the warranty null and void. Prior to commissioning remove the protective plastic coating from the unit. Do not use any tools or abrasive detergents as you may damage the painted surfaces.

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3. COMMISSIONING OF THE BOILER

To correctly light the burner proceed as follows:

1) Provide power supply to the boiler;

2) Open the gas cock;

3) Follow the directions given below regarding the adjustments to be made at the boiler control panel.

Figure 1

020503_1100

IMPORTANT: The instructions contained in this manual relating to the operation of the hot water circuit are relevant only if the appliance is actually connected to a hot water system.

KEYS DISPLAY SYMBOLS

Hot water on/off key

Central heating water temperature setting key

Hot water temperature setting key

Operation in hot water mode

Operation in central heating mode

Operation in automatic mode

Operation in manual mode at the maximum

Reset key

Program access and scroll keys

Program access and scroll key

Parameter setting key (decrease value)

Parameter setting key (increase value)

Data display reset key

temperature set

Operation in manual mode at minimum temperature

Standby (off)

Outdoor temperature

Flame present (on)

Resettable alarm warning

Central heating mode setting key

MAIN display

SECONDARY display

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3.1 DESCRIPTION OF KEYS

(2) This key can be pressed to set the central heating water output temperature as described in point

3-3.

(3) This key can be pressed to set the hot water temperature as described in point 3-4.

(10) Central heating mode operating key

The key can be pressed to activate four boiler central heating operating modes; these modes are

identied by a black cursor line underneath the relative symbol on the display, and are as follows:

Dash

“Automatic mode”

active

Figure 2

020503_0800

a) Automatic operation. Operation of the boiler is controlled by the timed program as described in point

3-5.1 “Daily timed program for operation of the central heating system”;

b) Manual operation at the maximum temperature set. The boiler comes into operation regardless of

the timed program set. The operating temperature is that set using the key (point 3-3: “Setting the maximum central heating temperature”);

c) Manual operation at minimum temperature. The operating temperature is that set in point 3-6:

“setting the minimum central heating temperature”.

The manual transition from positions a) and b) to position c) involves shut-down of the burner and

disconnection of the pump after the post-circulation delay interval (the factory setting for this parameter is 3 minutes).

d) standby. The boiler does not work in central heating mode, although the frost protection function is

still enabled.

(1) Hot water on/off key: Press this key to activate or inhibit this function, which is identied by the

appearance on the display of two black dashes under the symbol.

(4) Reset key. In case of a fault, referred to in point 3-7 “Faults and resetting the boiler”, the boiler

can be restarted by pressing this key for at least two seconds.

If this key is pressed with no fault present, the display will show the message “E153”, and the same

key has to be pressed again (for at least two seconds) to restart the boiler.

(9) Data key. This key can be pressed repeatedly to display the following information:

- Temperature (°C) of the hot water ( );

- outdoor temperature (°C) ( ); only provided with the outdoor temperature sensor probe connected.

Press either of the keys to return to the main menu.

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3.2 SETTING THE TIME

a) Press either of the keys to access the programming function; the display will show the letter P followed by a number (program line);

Figure 3

b) Press the keys until the display shows P1, referring to the time to be set;

c) Press the keys to set the time; on the display, the letter P will start to ash;

d) Press the key to save and exit the programming function;

020503_0700

3.3 SETTING THE MAXIMUM CENTRAL HEATING TEMPERATURE

- Press the key (2-gure 1) to set the central heating water temperature;

- Press the keys to set the temperature required;

- Press either of the keys (1 or 10 - gure 1) to save and return to the main menu.

N.B – With the outdoor sensor connected, the key (2 - gure 1) can be used to shift the central heating

curve. Press the keys to decrease or increase the room temperature in the premises to be heated.

3.4 SETTING THE MAXIMUM HOT WATER TEMPERATURE

- Press the key (3-gure 1) to set the maximum hot water temperature;

- Press the keys to set the temperature required;

- Press either of the keys (1 or 10 - gure 1) to save and return to the main menu.

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3.5 SETTING THE DAILY PROGRAM FOR OPERATION IN CENTRAL HEATING AND DOMESTIC HOT WATER MODES

3.5.1 Setting the daily times for central heating mode operation

- Press either of the keys to access the programming function;

a) Press these keys until the display shows P11, referring to the program start time;

b) Press the keys to set the time;

- Press the key; the display will show P12, referring to the program end time;

- Repeat the operations described in points a and b until the third and last cycle is reached (program line

P16);

- Press the key to save and exit from the programming function.

3.5.2 Setting the daily times for domestic hot water mode operation

- As supplied by the factory the appliance is set up with the hot water function always enabled and the do-

mestic hot water programming function disabled.

The instructions for enabling this program are given in chapter 17, which is addressed specically to installers

(parameter H91).

If the program is enabled program lines from 31 to 36 must be set up as described in heading 3-5.1.

3.6 SETTING THE MINIMUM CENTRAL HEATING TEMPERATURE

- Press either of the keys to access the programming function;

- Press these keys until the display shows p5, referring to the temperature to be set;

- Press the keys to set the temperature required.

This operating mode is enabled when minimum temperature central heating mode “ ” is activated or when the daily central heating program does not require heat.

N.B – With the outdoor sensor connected, parameter P5 can be used to set the minimum room temperature in the premises to be heated (night setback).

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3.7 TABLE FOR USER-SETTABLE PARAMETERS

Parameter

P1 Time of day setting ———- 0…23:59

P5 Minimum central heating temperature setting (°C) 25 25..80

P11 Start of rst daily period of automatic central heating 6:00 00:00…24:00

P12 End of rst daily period of automatic central heating 22:00 00:00…24:00

P13 Start of second daily period of automatic central heating 0:00 00:00…24:00

P14 End of second daily period of automatic central heating 0:00 00:00…24:00

P15 Start of third daily period of automatic heating 0:00 00:00…24:00

P16 End of third daily period of automatic central heating 0:00 00:00…24:00

P31 Start of rst daily period of hot water production (*) 0:00 00:00…24:00

P32 End of rst daily period of hot water production (*) 24:00 00:00…24:00

P33 Start of second daily period of hot water production (*) 0:00 00:00…24:00

P34 End of second daily period of hot water production (*) 0:00 00:00…24:00

P35 Start of third daily period of hot water production (*) 0:00 00:00…24:00

P36 End of third daily period of hot water production (*) 0:00 00:00…24:00

P45

Parameter description

Reset of daily central heating and domestic hot water production programs (factory settings). Press the - + keys together for about 3 seconds; the number 1 appears on the display. Conrm by pressing either of the keys

Factory

setting

0 0...1

Range

Note: Parameters from P31 to P36 can be displayed only if the domestic hot water program has been enabled as described in chapter 17 for the attention of the installer (parameter H91).

3.8 FAULT WARNINGS AND RESETTING THE BOILER

If a fault occurs, a ashing warning code appears on the display. The fault warnings appear on the main display (gure

1 a) together with the symbol (Figure 4). To reset, press the reset button for at least two

seconds.

Fault warnings appear on the secondary display (gure 1 b) alternating with the time, both of them ashing (gure 4.1). It is not possible to reset malfunction warnings which appear on the secondary display as the cause of the alarm has rst to be removed.

020503_0500

Figure 4

0509_0201

Figure 4.1

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3.9 FAULT WARNINGS TABLE

Fault code Fault description action required

E10 outdoor temperature probe sensor failure call the authorised service centre.

E20 ntc output sensor failure call the authorised service centre

E40 NTC return heating probe faulty call the authorised service centre

E50 domestic hot water ntc sensor failure call the authorised service centre

E110

E111 Delivery temperature higher than 95°C If this fault persists, call the authorised service centre

E128

E129 Minimum fan speed limit is hurt Call an authorised service centre.

E132 oor thermostat tripped call the authorised service centre

E133 no gas

E151 boiler circuit board error

E153 the reset key has been pressed inappropriately press the key again (about 2 seconds)

E154

E160 fan speed threshold not reached call the authorised service centre.

E164 no hydraulic pressure switch enabling signal

Safety or fumes thermostat or heating return temperature probe tripped

Loss of ame during operation (the ionization current has fallen below the limit)

No circulation or reverse ﬂow call the authorised service centre

press the reset key (for about 2 seconds: if this device is triggered repeatedly, call the authorised service centre)

Call an authorised service centre.

press the reset key (for about 2 seconds); if the fault persists, call the authorised service centre)

Press the reset button if the display presents the ( ) symbol, otherwise switch off the boiler at the mains and switch it on again after 10 seconds. If the fault persists, call an authorised service centre. Check the position of the ignition electrodes (chapter 17).

check that the system is at the rated pressure. (refer to the section on lling the system). if the fault persists, call the authorised service centre.

All the faults are displayed in order of importance; if several faults occur simultaneously, the rst to be displayed is the one with highest priority. After the cause of the rst fault has been removed, the second one will be displayed, and so on. If any given fault occurs frequently, contact the authorised Service Centre.

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4. FILLING THE BOILER

Important: Regularly check that the pressure displayed by the pressure gauge is between 1 to 4 bar, with the boiler not operating. In case the pressure is lower open the boiler lling tap. We recommend you open the tap very slowly in order to let off the air. In case pressure drops occur frequently have the boiler checked by a Qualied Service Engineer.

5. TURNING OFF THE BOILER

To shut down the boiler switch off the electrical supply to the appliance.

6. PROLONGED STANDSTILL OF THE SYSTEM. FROST PROTECTION

We recommend you avoid draining the whole system as raw water makeup will lead to harmful limestone deposits inside the boiler and on the heating elements. In case the boiler is not operated during wintertime and is therefore exposed to danger of frost we suggest you add some specic-purpose anti-freeze to the water contained in the system (e.g.: propylene glycole coupled with corrosion and scaling inhibitors). The electronic management of the boilers includes a ‘frost protection’ function which operates the burner to reach a heating ow temperature of 30° C when the system heating ow temperature drops below 5°C.

The frost protection function is enabled if:

* electrical supply to the boiler is on; * the gas service cock is open; * the system pressure is as required;

* the boiler is not isolated.

7. SERVICING INSTRUCTIONS AND GAS CHANGE

To maintain efcient and safe operation of your boiler have it checked by a Qualied Service Engineer at the end of every heating season. Careful servicing will ensure economical operation of the system. Do not clean the outer casing of the appliance with abrasive, aggressive and/or easily ammable cleaners (i.e.: gasoline, alcohol, and so on). Always isolate the electrical supply to the appliance before cleaning it (see section 5 Turning off the boiler).

These boilers are produced for natural gas and can be converted to work with LPG (G 31). Any gas change must be effected by a Qualiﬁed Service Engineer.

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8. GENERAL INFORMATION

The following remarks and instructions are addressed to Service Engineers to help them carry out a faultless installation. Instructions regarding lighting and operation of the boiler are contained in the ‘Instructions pertaining to the user’ section. Note that installation, maintenance and operation of the gas appliances must be performed exclusively by qualied personnel in compliance with current standards. Please note the following: * This boiler can be connected to any type of double- or single feeding pipe convector plates, radiators,

thermoconvectors. Design the system sections as usual though taking into account the available output / pump head performances.

* Do not leave any packaging components (plastic bags, polystyrene, etc.) within children’s reach as they are

a potential source of danger.

* Initial lighting of the boiler must be effected by a Qualied Service Engineer.

Failure to observe the above will render the warranty null and void.

9. INSTRUCTIONS PRIOR TO INSTALLATION

This boiler is designed to heat water at a lower than boiling temperature at atmospheric pressure. The boiler must be connected to a central heating system and, on models with this option, to a domestic hot water supply system in compliance with its performances and output criteria.

IMPORTANT! The gas boiler is supplied without the following components which must be provided exclusively by qualied personnel:

• Expansion vessel;

• Pressure relief valve;

• Circulating pump;

• Boiler lling tap.

Before connecting the boiler ensure the following operations have been completed:

a) Check that the boiler is t for operation with the type of gas available. For more details see the notice on

the packaging and the label on the appliance itself.

b) Check that the ue terminal draft is appropriate; that the terminal is not obstructed and that no other applian-

ce exhaust gases are expelled through the same ue duct, unless the ue is especially designed to collect the exhaust gas coming from more than one appliance, in conformity with the standards and regulations in force.

c) Check that, in case the ue has been connected to pre-existing ue ducts, thorough cleaning has been

carried out in that residual combustion products may be created during operation of the boiler and obstruct the ue duct.

To ensure correct operation of the appliance and avoid invalidating the warranty, observe the following precautions:

1. Hot water circuit:

If the water hardness is greater than 20 °F (1 °F = 10 mg calcium carbonate per litre of water) a

polyphosphate or comparable treatment system responding to current regulations must be used.

2. Heating circuit

2.1. New system

Before proceeding with installation of the boiler, the system must be cleaned and ushed out thoroughly

to eliminate residual thread-cutting swarf, solder and solvents if any, using suitable proprietary products.

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 12

To avoid damaging metal, plastic and rubber parts, use only neutral cleaners, i.e. non-acid and non

alkaline. The recommended products for cleaning are:

SENTINEL X300 or X400 and FERNOX heating circuit restore. Please ensure to use this product

proceeding strictly in accordance with the manufacturers instructions. Finally ll the system with the correct strength of central heating inhibitor.

2.2. Existing system

Before proceeding with installation of the boiler, the system must be cleaned and ushed out to remove

sludge and contaminants, using suitable proprietary products as described in section 2.1.

To avoid damaging metal, plastic and rubber parts, use only neutral cleaners, i.e. non-acid and non-

alkaline such us SENTINEL X100 and FERNOX heating circuit protective. To use this product proceeding strictly in accordance with the maker’s directions.

Remember that the presence of foreign matter in the heating system can adversely affect the operation

of the boiler (e.g. overheating and noisy operation of the heat exchanger). Dose with inhibitor.

Failure to observe the above will render the guarantee null and void.

10. BOILER INSTALLATION

Decide upon the boiler location, then tape the template on the wall. Connect the pipework to the gas and water inlets prearranged on the template lower bar. If you are either installing the boiler on a pre-existing system or replacing it, we suggest you also t strainers on the system return pipework to the boiler to collect the deposits and scaling which may remain and be circulated in the system after the initial lling. When the boiler is xed on the template connect the ue and air ducts (ttings supplied by the manufacturer) according to the instructions given in the following relevant sections. Connect the condensate outlet to the siphon supplied with the boiler. Connect the siphon to a drain, making sure there is a continuous slope. Horizontal sections must be avoided.

0506_0806

Figure 5

DRILL HOLES WITH A Ø12 BIT, FIT THE MASONRY

PLUGS AND THE SCREWS PROVIDED

FLUE AXIS

N.B. INCLUDE CONDENSATE DRAIN POINT

BOILER HEIGHT 950

BOILER WIDTH 600

gas inlet to the boiler

heating ow

heating return

condensation drain

0602_0701/CG_1469/1

MR: G 1” heating ow

GAS: G 3/4” gas inlet to the boiler RR: G 1” heating return SC: condensation drain 22 mm

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 13

Figure 6

11. BOILER SIZE

0310_0103

12. INSTALLATION OF FLUE AND AIR DUCTS

We guarantee ease and exibility of instal lation for the boiler thanks to the ttings and xtures supplied (described below). The boiler is especially designed for connection to an exhaust ue / air ducting, with either concentric, vertical

or horizontal terminal.

Where exhaust and intake ﬂues not supplied by POTTERTON GOLD HIGH OUTPUT have been installed, these

must be certied for the type of use

and must have a maximum pressure drop of 100 Pa for the complete ﬂue installation.

Figure 7

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

0709_1001

Page 14

HORIZONTAL CONCENTRIC FLUES

Boiler Flue Size

WH46 Ø80/125 9 m 8 m 7 m 6 m

WH65 Ø80/125 9 m 8 m 7 m 6 m

VERTICAL CONCENTRIC FLUES

Boiler Flue Size

WH46 Ø80/125 9 m 8 m 7 m 6 m

WH65 Ø80/125 9 m 8 m 7 m 6 m

Boiler Flue Size

WH46 Ø80 59,5 m 59 m 58,5 m 58 m

WH65 Ø80 59,5 m 59 m 58,5 m 58 m

1 2 3 4

CONVENTIONAL FLUE

1 2 3 4

Number of Bends 90°

Concentric ﬂue

This type of duct allows to emit exhaust gases and to draw combustion air from outside the building. The 87° coaxial bend allows to connect the boiler to a ue-air duct in any direction as it can rotate through 360°.

If the ue outlet is placed outside, the ue-air ducting must protrude at least 18mm out of the wall to allow alluminium weathering tile to be tted and sealed to avoid water leakages. If the terminal is below 2m then a terminal gaurd is required. Ensure a minimum downward slope of 3° towards the boiler.

A 87° bend reduces the total ue length by 1 metre. A 45° bend reduces the total ue length by 0.5 metre.

990519_0400

Concentric outlet

Figure 8

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

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12.1 HORIZONTAL FLUE TERMINAL

L = refer to table

Ø 80/125

INSTALLATION OPTIONS

0602_0702

12.2 VERTICAL FLUE TERMINAL

Ø 80/125 mm

INSTALLATION OPTIONS

This type of installation can be carried out both on a at or pitched roof by tting a terminal, an appropriate weathering tile and sleeve, (supplementary ttings supplied as options).

0310_0107

L = refer also the table

L max = 10 m

L max = 10 m L max = 9 mL max = 8 m

12.5 FAN RPM UPDATING DEPENDING ON FLUE LENGTH (e.g. ﬁgure 7)

To ensure the correct rated heat output to the maximum and minimum heat input, it is necessary to update the speed (rpm) of the fan, it depends on the length of the ue (par. 12), in accordance with the installation of ue and air pipes as indicated in the tables below. The factory-set value is referred to the minimum length of ue pipe (0÷4 m for concentric, 0÷20 m for twin). To carry such updating, changing the speed of the fan (rpm) at the maximum and minimum heat input, refer to par. 16.

WH 46

CONCENTRIC PIPE Ø 80/125

(C13-C33-C43)

Parametres

Pipes length (m)

(*) 0 - 4

5 - 10

H536-H613

Max heat output (rpm) Min heat output (rpm)

5500 1900

5900 2100

(*) Default setting parameters

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Parametres

H612

(*) Default setting parameters

WH 65

Pipes length (m)

(*) 0 - 4

5 - 10

CONCENTRIC PIPE Ø 80/125

(C13-C33-C43)

Parametres H536-H613

Max heat output (rpm) Min heat output (rpm)

Parametres

H612

6000 1850

6500 2100

Page 16

13. HYDRAULIC DIAGRAM

Applications and Installation Details

13.1 HYDRAULIC SYSTEM 1

(Pumped heating circuits with remote control QAA73 or Room Thermostat, including hot-water tank, without and with primary loop)

(*)

(*) optional extra

Figure 9a

(*)

without low loss header

(*)

0602_0704/CG1782

(*) optional extra

(*)

with low loss header and primary loop

Figure 9b

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

(*)

0602_0703/CG1756

Page 17

• TS: Tank Sensor (QAZ36)*

• B3: Room Control Module (QAA73)*

• B1: Room Thermostat

• B9: Outdoor Temperature Sensor (QAC34)*

• P1: Heating Pump

• PDHW: Hot Water pump

• PLP: Primary Pump (only for gure 9b)

(*) Available Optional Extra

• Pumps (Not Supplied)

• Isolating Valve (Not Supplied)

• Installer Wiring --------------

• Hot Water Cylinder (Not Supplied)

• Low Loss Header (Not Supplied)

• Non return valve (Not supplied)

Applications (pumps, sensor, remote control ...) have to be connected to terminal as follows (see also section 14):

WITH QAA73 REMOTE CONTROL

WITH ROOM THERMOSTAT

APPLICATION TERMINAL BOARD TERMINAL BOARD

PRIMARY PUMP PLP (only for gure 9b) M1: A – B M1: A – B

DHW PUMP PDHW M3: 13 – 14 M3: 13 – 14

HEATING PUMP P1 M3: 11 – 12 M3: 11 – 12

DHW SENSOR TS M2: 7 – 8 M2: 7 – 8

REMOTE CONTROL QAA73 M2: 1 – 2 NO

ROOM THERMOSTAT M2: 3 – 4 OPEN M2: 3 – 4

Parameter changes requires (see also section 16):

PCB PARAMETER

Description Setting Parameter

H552 Hydraulic system H552 = 2

H553 KongHKS H553 = 21

H615 KongAusgang H615 = 9

H632 Wanfo Q8 H632 = 00001100

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

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13.2 HYDRAULIC SYSTEM 2

(Pumped heating circuits with Room Thermostat and compensated circuit with remote control QAA73, including hot-water tank, with primary loop)

• TS:Tank Sensor (QAZ36)*

• B3: Room Control Module (QAA73)*

• B1: Room Thermostat

• B9: Temperature Sensor (QAC34)*

• Zone Controller (Clip-in AGU2.500)*

• FS: Flow Sensor (QAD36: supplied with AGU2.500)*

• P1: Heating Pump

• P DHW: Hot Water pump

• PLP: Primary Pump

• 3WV: 3-way Valve (power open / power close)

(*) Available Optional Extra

• Pumps (Not Supplied)

• Isolating Valve (Not Supplied)

• Installer Wiring --------------

• Hot Water Cylinder (Not Supplied)

• Low Loss Header (Not Supplied)

• Non Return Valve (Not supplied)

0602_0705/CG1759

HEATING CIRCUIT COSTANT TEMP.

AGU 2.500*

HEATING CIRCUIT VARIABLE TEMP.

Figure 10

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 19

Applications (pumps, sensor, remote control ...) have to be connected to terminal as follows (see also section 14):

APPLICATION TERMINAL BOARD

PRIMARY PUMP PLP M1: A – B

DHW PUMP PDHW M3: 13 – 14

HEATING PUMP P1 M3: 11 – 12

DHW SENSOR TS M2: 7 – 8

REMOTE CONTROL QAA73 (LOW TEMPERATURE) M2: 1 – 2

ROOM THERMOSTAT M2: 3 – 4

HEATING PUMP P2 CLIP IN AGU 2.500

3 WAY VALVE CLIP IN AGU 2.500

FLOW SENSOR CLIP IN AGU 2.500

Parameter changes requires (see also section 16):

PCB PARAMETER

Description Setting Parameter

H552 Hydraulic system H552 = 50

H553 KongHKS H553 = 12

H615 KongAusgang H615 = 9

H632 Wanfo Q8 H632 = 00001111

13.3 HEAT EXCHANGER PRESSURE DROP

Hydraulic Resistance and Water Flow Rates

Boiler

WH46 70,61 0,98 31,38 0,72 11,77 0,54 10,79 0,36

WH65 56,88 1,41 34,32 1,04 20,59 0,78 11,77 0,52

Boiler

WH46 0,28

WH65 0,35

11°C ∆T 15°C ∆T 20°C ∆T 30°C ∆T

kPa Lit/sec kPa Lit/sec kPa Lit/sec kPa Lit/sec

Minimum Water Flow Rates

Lit/sec

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 20

14. CONNECTING THE MAINS SUPPLY

Electrical safety of the appliance is only guaranteed by correct earthing, in compliance with the applicable standards and regulations. Connect the boiler to a 230V earthed power supply by means of the three-pin cable supplied ensure that the polarity is correct. Use a double-pole switch isolator with a contact separation of at least 3mm in both poles. In case you replace the power supply cable t a HAR H05 VV-F’ 3x0.75mm2 cable with an 8mm diameter maximum outer sheath. The fuse, a fast-acting type rated 2A, is incorporated into the power supply terminals (remove the black fuse holder to enable inspection and/or replacement).

IMPORTANT: Check that the overall current drawn by accessories connected to the appliance is less than 1 amp. If the value is greater, a relay must be wired between the boiler control circuit board and the accessories drawing the higher current.

Terminal board M1

Terminal board M2

Cover

020523_0400

Figure 11

Cover

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 21

14.1 CONNECTING THE PUMPS

Turn the control box downward to access terminal boards M1 and M3 used for the electrical connections by removing the protective covers (see gure 12).

Terminals M1 a – b: connection of the primary loop pump for the heating system (PLP)

Check the correct size and rating of the pump by referring to its hydraulic resistance table.

Terminals M3 11 – 12: connection for heating pump (P1) Terminals M3 13 – 14: connection for hot water tank pump (PDHW)

The electrical specications of the pump must be as follows: 230 V AC; 50 Hz; 1 A max; cos f > 0.8.

If the specications of the installed pump are different, a relay must be wired between the boiler control circuit board and the pump. It is advisable not to adopt any electrical connection other than those described.

Connect earth to earth strip

Figure 12

CG_1763 / 0906_2205

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 22

14.2 CONNECTING THE HOT WATER TANK SENSOR

Remove the resistor from terminals 9-10 of terminal strip M2 (gure 13), and connect the hot water priority NTC sensor, which is supplied as an accessory. The sensing element of the NTC device must be located in the recess provided on the storage tank (gure 13). The temperature and on-off programming of the domestic hot water supply are selected directly from the boiler control panel, as described in this manual under the user instruction headings.

0602_0707/CG1764

SAFETY CONTACT

ROOM THERMOSTAT

Figure 13

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 23

14.3 DESCRIPTION OF THE ELECTRICAL CONNECTIONS TO THE BOILER

Turn the control box downward to access terminal board M2 used for the electrical connections by removing the protective cover (see gure 13).

Terminals 1-2: connection of SIEMENS model QAA73 room temperature regulator supplied as optional extra. Connection polarity is irrelevant. The link tted across the “TA” terminals 3-4 must be removed. Read the instructions supplied with this accessory for correct installation and programming procedures. Terminals 3-4: “TA” room temperature thermostat connection. Thermostats with integral accelerator resistor must not be used. Check that there is no voltage across the ends of the two thermostat connection wires.

Terminals 5-6: external safety contact (low voltage). Terminals 7-8: connection of SIEMENS model QAC34 outdoor temperature sensor supplied as optional extra.

Read the instructions supplied with this accessory for correct installation procedures. Terminals 9-10: connection of hot water temperature sensor supplied as optional extra for connecting heating-only boilers to an external water heater.

CLIP-IN AGU 2.511

Terminals 3-4 L-N OUT: connection to signal lamp (230 V - 0,5 A max) for lockout alarm. Terminals 5-6 L-N OUT: connection to signal lamp (230 V - 0,5 A max) for run mode.

For low voltage signal lamp remove the internal wiring and feed with an external low voltage power supply.

(OPTIONAL EXTRA)

0602_0708/CG1765

Figure 14

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 24

14.4 CONNECTING THE QAA73 TEMPERATURE REGULATOR

The SIEMENS model QAA73 room temperature regulator, if required (optional extra) must be connected to terminals 1-2 of terminal board M2 in gure 13. The link across terminals 3-4, provided for connection of a room temperature thermostat, must be removed. The settings of the domestic hot water temperature and domestic hot water production schedule must be made using this device. The timed program of the central heating circuit must be set on the QAA73 if there is a single zone, or in relation to the zone controlled by the QAA73 device. The timed program for the central heating circuit of the other zones can be set directly on the boiler control panel.

See the instructions provided with the QAA73 room temperature regulator for the user parameter programming procedure.

IMPORTANT: For systems divided into zones, parameter 80 “HC2 curve”, which can be set on the QAA73 temperature regulator, must be set as _ _ . _ “not active”.

QAA73: parameters which can be set by the installation engineer (service)

By pressing the two PROG buttons together for at least three seconds it is possible to access the list of parameters that the installer can display and/or set. Press either of these buttons to change the parameter to display or change. Press the [+] or [-] key to change the value displayed. Press either of the PROG buttons again to save the change. Press the information button (i) to quit programming.

Here follows a list of the most commonly used parameters:

Line no.

Parameter

HC1 curve Selection of central heating circuit temperature curve “kt”

HC1 max. output Central heating system maximum output temperature

Type of building

Room compensation

Activation/deactivation of the inuence of the room temperature. If it is deactivated, the outdoor

temperature sensor must be installed.

Automatic adaptation of the temperature curve “kt” in relation to the room temperature.

Opt Start Max

Maximum time the boiler is switched on ahead of the timed program to optimise the temperature

in the premises.

Opt Stop Max

Maximum time the boiler is switched off ahead of the timed program to optimise the temperature

in the premises.

HC2 curve

DHW Red Setp

Minimum temperature of the domestic hot water

DHW program

Selection of the type of timed program for domestic hot water. 24 h/day = always on

PROG HC-1h = as HC1 central heating program less one hour PROG HC = as central heating program

PROG DHW = specic domestic hot water program (see also program lines 30-36)

Range Default value

2.5…40 15

25…85 85

Light, Heavy Light

on HC1 on HC2 on HC1+HC2 nil

On - off On

0…360 min 0

2.5…40 —.- = not active

10 or 35…58 10

24 h/day TSP HC-1h TSP HC TSP DHW

On HC1

—.-

24 h/day

- fault messages

In the event of fault, the display panel on the QAA73 shows the ashing symbol . Press the information key ( ) to display the error code and a description of the fault (see Fault warning tables on paragraph 3.9).

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 25

14.5 CONNECTING THE OUTDOOR TEMPERATURE SENSOR

The SIEMENS model QAC34 outdoor temperature sensor (optional extra) for weather compensation must be connected to terminals 7-8 of terminal board M2 in gure 13. The procedures for setting the gradient of the temperature curve “kt” vary depending on the accessories connected to the boiler.

a) Without QAA73 room temperature regulator:

The temperature curve “kt” must be selected by setting parameter H532 as described in section 16 “setting the boiler parameters”. See graph 2 for selecting the curve referred to a room temperature of 20°C.

The chosen curve can be shifted by pressing the (2), button (2) on the boiler control panel, and modifying

the value displayed by pressing the and keys. See graph 3 for curve selection. (The example show in graph 3 refers to the curve Kt=15). Increase the value displayed if the room temperature required is not reached inside the premises for central heating.

020523_0600

TM = Flow temperature Te = Composite outside temperature

Graph 2 Graph 3

Sth = Kt Curve

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 26

b) With QAA73 room temperature regulator:

The temperature curve “kt” must be selected by setting parameter 70 “HC1 curve” of the QAA73 room temperature control device as described in section 14.4 “QAA73: parameters which can be set by the installation engineer (service)”. See graph 4 for selecting the curve referred to a room temperature of 20°C. The curve is shifted automatically on the basis of the room temperature set using the QAA73 climate control. If the system is divided into zones, the temperature curve “kt” relating to the part of the system not controlled by the QAA73 must be selected by setting parameter H532 as described in section 16 “setting the boiler parameters”.

IMPORTANT: For systems divided into zones, parameter 80 “HC2 curve”, which can be set on the QAA73 room temperature regulator, must be set as _ _ . _ “not active” (see section 14.4).

010905_0100

TM = Flow temperature

Graph 4

Te = Composite outside temperature

c) With AGU2.500 for control of a low temperature system:

Refer to the instructions provided with the AGU2.500 accessories for connection and control of a low temperature zone.

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 27

15. GAS VALVE ADJUSTMENT

Carry out the following ope rations in the given sequence:

Calibration of the maximum heat output. Check that the CO2 measured on the ue, with the boiler operating at the maximum heat output, is the same as that shown in table 1. Otherwise, turn the regulation screw (V) on the gas valve. Turn the screw clockwise to reduce the concentration of CO2 and anticlockwise to increase it.

2) Calibration of reduced heat output. Check that the CO2 measured on the ue, with the boiler operating at the

minimum heat output, is the same as that shown in table 1. Otherwise, turn the offset regulation screw (K) on the gas valve. Turn the screw clockwise to increase the concentration of CO2 and anticlockwise to reduce it.

0310_0114

Pi: Gas supply pressure connection point

P out: Gas pressure to burner connection point

P: Pressure connection point

for measurement of the OFFSET

Pl: Air signal input from fan

V: Gas ow adjuster screw max re

K: OFFSET adjuster screw min re

Figure 15

To simplify calibration of the gas valve, the “calibration function” can be set directly on the boiler control panel by proceeding as follows:

1) Press the keys (2-3) together until the display shows the pointer “ ” alongside the and symbols

(about 6 seconds) (see g. 16).

2) Press the keys to set the fan speed at the minimum and maximum heat output (%PWM);

N.b - to set the minimum and maximum heat output quickly, press the keys respectively;

3) press either of the two keys to exit the function.

0307_2201

Figure 16

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 28

IMPORTANT: in the case of conversion from natural gas to propane (LPG), the following operations must be

performed before calibrating the gas valve as illustrated previously:

• Turnadjusterscrew(V)onthegasvalvethroughthenumberofcompleterevolutionsspeciedintable3.

G20 - 2H - 20 mbar G31 - 3P - 37 mbar

CO2

max. heat output 8.7 % 10 %

CO2

min. heat output 8.4 % 9.8 %

Table 1

Gas consumption at 15 °C 1013 mbar gas

G20 - 2H - 20 mbar

PCI (MJ/Kg) NET 34.02 34.02

Consumption at max. heat output (Kg/h) 4.91 7.08

Consumption at min. heat output (Kg/h) 1.58 2.11

Gas nozzle (mm) 8.5 ---

Table 2

Gas consumption at 15 °C 1013 mbar gas G31 - 3P - 37 mbar

PCI (MJ/Kg) NET 46.34 46.34

Consumption at max. heat output (Kg/h) 3.60 5.20

Consumption at min. heat output (Kg/h) 1.16 1.55

Gas nozzle (mm) 8.5 ---

Table 2.1

WH 46 WH 65

Model Counter clockwise

turns of screw

WH 46 3

WH 65 4 3/

Table 3

(V)

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 29

16. SETTING THE BOILER PARAMETERS

The boiler parameters may only be modied by professionally qualied staff proceeding as follows: a) Press the , keys on the boiler’s front panel together for about 3 s until the parameter H90 appears on

the display; b) Press the keys to select the parameter for modication; c) Press the and keys to modify the parameter; d) Press the key to exit the programming function.

The following are the parameters generally used:

N° parametro Description Factory setting

H90 Setting for domestic hot water reduced temperature (°C) 10

H91

H505

H507

H516 Automatic Summer / Winter switching temperature (°C). 20

H532 Selection of temperature curve of central heating circuit HC1 (see Graph 1) 15

H533 Selection of temperature curve of central heating circuit HC2 (see Graph 1) 15

H536 Maximum speed at maximum output in heating mode (rpm - maximum speed limitation)

H612 Setting value of required speed (rpm) at low-re

H536-H613 Setting value of required speed (rpm) at high-re heating / domestic hot water mode

H541-H610 PWM (%) setting: maximum output in heating / domestic hot water mode

H544 Pump post-circulation time in central heating mode (min) 10

H545 Burner operating pause time between two start-ups (s) 180

H552

H553

H615 Programmable function 9

H632

H641 Fan post-purge interval (s) 10

H657

D.H.W. (Domestic Hot Water) program (0 = enabled; 1 = disabled)

Maximum temperature (°C) of the central heating circuit HC1 corresponding to:

- the main circuit in systems with just one zone;

- the circuit of the zone where the QAA73 temperature control device is installed in case of systems with more than one high-temperature zone;

- the high temperature zone circuit in mixed systems and if the SIEMENS AGU2.500 accessory is used.

Maximum temperature (°C) of the central heating circuit HC2 of a system with more than one zone, corresponding to the circuit of the low-temperature zone if the SIEMENS AGU2.500 accessory is used.

Hydraulic system setting (see instructions provided with the SIEMENS AGU2.500 accessory). H552 = 50 with AGU2.500 H552 = 80 with RVA 47

Conguration of heating circuits H553 = 12 with AGU2.500

Conguration of system with low loss header P1 H632 = 00001111 with AGU2.500 H632 = 00001000 with storage tank without low loss header

The value of Bit could be 1 or 0. Press the keys 5 and 6 to select the bit to modify (b0 is the bit on the right, b7 is the last bit on the left). To modify the Bit value press on the keys 7 and 8

Setpoint of autonomous ANTILEGIONELLA function

60...80 °C = setting temperature range

0 = function inactive

Refer to

paragraph 12.1

00001100

Table 4

If the electronic circuit board is replaced, make sure that the parameters set are those specic to the boiler model, as indicated in the documentation available from the authorised Service Centre.

(*) For these parameters see section 13 (hydraulic system).

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 30

17. CONTROL AND OPERATION DEVICES

The boiler has been designed in full compliance with European reference standards and in particular is equipped with the following

• Overheat thermostat

This thermostat interrupts the gas ow to the main burner in case the water contained in the circuit has ove-

rheated. Under these conditions the boiler locks out and can only repeat the ignition procedure by pressing of the reset button on the boiler after the cause of the trip has been rectied.

It is forbidden to disable this safety device

• Boiler circuit circulation test

The boiler electronic management unit is tted with a “boiler circulation test” function which involves con-

tinuously checking the primary circuit delivery and return temperatures. In case of an irregular increase in the delivery and return temperature or a temperature reversal, the boiler stops and signals the error on the display (see error table).

• Flue thermostat

This device, positioned on the ue inside the boiler, interrupts the ow of gas to the burner if the temperature

exceeds 90 °C. After verifying the cause of the trip, press the reset button positioned on the thermostat itself, then press the reset button on the boiler.

It is forbidden to disable this safety device

• Flame ionization detector

The ame sensing electrode guarantees safety of operation in case of gas failure or incomplete interlighting

of the main burner. Under such conditions the boiler is locked out. You must press the reset button on the boiler to restore the normal operating conditions.

• Supplementary pump overrun

After the burner has switched off due to a room thermostat intervention the preset pump overrun of the

pump lasts 10 minutes, when the boiler is in the central heating mode.

• Frost protection device The boilers electronic management includes a “frost protection” function in the central heating system which

operates the burner to reach a heating ow temperature of 30°C when the system heating ow temperature

drops below 5 °C. This function is enabled as long as the boiler is connected to the a.c. power supply gas supplies and the

pressure in the system is as specied.

• Pump-blocking prevention

In case there is no call for heat either from the central heating system or from the DHW system for 24 hours

on end the pump will automatically switch on for 10 seconds.

• Gas pressure switch

This device enables the main burner only to be switched on if the gas pressure is over 12 mbar.

• Hydraulic pressure sensor

This device enables the main burner only to be switched on if the system pressure is over 0.5 bar.

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 31

18. POSITIONING OF THE IGNITION AND FLAME SENSING ELECTRODE

CT_0826 / 1003_1001

Figure 17

19. CHECK OF COMBUSTION PARAMETERS

To measure the performance of combustion products, the forced draught boiler models are equipped with two test points on the tapered coupling specically designed for this purpose. One of the two test points is connected to the exhaust ue duct to allow measurements of the combustion products and efciency. The second test point is connected to the comburant air inlet duct to check possible combustion products circulation in case of coaxial ducts. The exhaust ue duct test point allows measurements of the following:

• combustionproductstemperature;

• concentrationofoxygen(O2) or, alternatively, of carbon dioxide (CO2);

• concentrationofcarbonmonoxide(CO).

The comburant air temperature must be measured at the test point connected to the air inlet duct.

020429_0300

ue gas

combustion air

gasket

Figure 18

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 32

20. ACTIVATING THE CHIMNEY-SWEEP FUNCTION

To facilitate measurement of the combustion efciency and improve the cleanliness of the production products, the chimney sweep function can be activated by proceeding as described below:

1) Press the (2-3) together until the pointer “ ” appears on the display alongside the symbol (about 3

seconds but no more than 6 seconds). In these conditions, the boiler operates at the maximum heat output

set for central heating.

2) Press either of the buttons to exit the function.

020429_0200

Figure 19

21. ANNUAL SERVICE

To ensure the boiler operates at peak efciency, the following checks must be performed every year:

•Checkontheappearanceandtightnessofthegasandcombustioncircuitgaskets;

•Checkontheconditionandpositionoftheignitionandamesensingelectrodes(seesection18);

•Checkontheconditionoftheburneranditsxingtothealuminiumange;

•Checkforanydirtinthecombustionchamber.Useavacuum-cleanerforthiscleaningoperation,

• Checkifthesyphontrapisdirty;

•Checkthatthegasvalveiscalibratedcorrectly(seesection15);

•Checkonthecentralheatingsystempressure.

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 33

22. BOILER SCHEMATIC

Figure 20

Legend:

1 Boiler drain point 2 Manometer (water pressure gauge) 3 Siphon (condensate) 4 NTC delivery heating probe 5 105°C overheat thermostat 6 Gas valve 7 Heat exchanger 8 Flame detector electrode (ionisation probe) 9 Main burner 10 Ignition electrode 11 Air/gas mixture header 12 Mixer with venturi 13 Injector 14 Fan 15 Flue thermostat 16 Flue spigot 17 Automatic air vent 18 Flue joint 19 Hydraulic pressure sensor 20 Pressure gas switch 21 NTC return heating probe

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 34

23. ILLUSTRATED WIRING DIAGRAM

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 35

24. TECHNICAL DATA

Boiler model WH WH 46 WH 65

Category II2H3P II2H3P

Nominal heat input (net/gross) kW 46,4 - 51,5 67,0 - 74,4

Reduced heat input (net/gross) kW 15 - 16,6 20,0 - 22,2

Rated heat output 75/60°C

Rated heat output 50/30°C

Reduced heat output 75/60°C

Reduced heat output 50/30°C

Useful efciency according to 92/42/CEE directive —

Useful efciency max heat output 75/60 °C net/gross % 97,3 / 87,3 97,4 / 87,4

Useful efciency max heat output 50/30 °C net/gross % 105,1 / 94,5 105,2 / 94,5

Useful efciency 30% heat output % 107,6 107,6

Central heating system max. pressure bar 4 4

Heating circuit temperature range °C 25÷80 25÷80

Type — C13 - C33 - C43 - C53 - C63 - C83 - B23

Concentric ue duct diameter mm 80 80

Concentric air duct diameter mm 125 125

Twin-pipe ue duct diameter mm 80 80

Twin-pipe air duct diameter mm 80 80

Max. ue mass ow rate kg/s 0,022 0,032

Min. ue mass ow rate kg/s 0,007 0,010

Max. ue temperature °C 74 75

NOx class — 5 5

NOx mg/kWh 38,4 37,7

Type of gas used — G20/G31 G20/G31

Natural gas pressure 2H mbar 20 20

Propane gas pressure 3P mbar 37 37

Gas Consumption (NG) m3/hr 4,91 7,08

Gas Consumption (LPG) m3/hr 1,89 2,74

Minimum Operating Pressure Bar 1 1

High Level Ventilation to BS6644 boiler room cm2 92,8 134

Low Level Ventilation to BS6644 boiler room cm2 185,6 268

Water Flow at 20°C ∆t lit/sec 0,54 0,78

Hydraulic Resistance at 20°C ∆t kPa 11,7 20,6

Cold Feed Size to BS6644 mm 19 25

Safety valve size to BS6644 (open vent system) mm 19 19

Water Content lit 5,1 6,5

Maximum Flow Temperature °C 85 85

Ventilation to BS5440 cm2

Power supply voltage V 230 230

Power supply frequency Hz 50 50

Rated power supply W 75 125

Net weight kg 64 72

Dimensions height mm 950 950

width mm 600 600

depth mm 466 466

Protection-limit against humidity and water leakages (**) IPX5D IPX5D

(**) according to EN 60529

kW 45,0 65,0

kcal/h 38.700 55.900

kW 48,7 70,3

kcal/h 41.880 60.460

kW 14,5 19,3

kcal/h 12.470 15.820

kW 15,8 21,0

kcal/h 13.588 18.060

★★★★ ★★★★

INSTRUCTIONS PERTAINING TO THE INSTALLER 926.772.1 - GB/IE

Page 36

POTTERTON GOLD HIGH OUTPUT, in its commitment to constantly improve its products, reserves the right to alter the

specications contained herein at any time and without previous warning. These Instructions are only meant to provide consumers with use information and under no circumstance should they be construed as a contract with a third party.

Wood Lane

Erdington

Birmingham

B24 9QP

TELEPHONE 0845 0701058 FAX 0845 0701059 WEB www.pottertongold.co.uk

POTTERTON GOLD HIGH OUTPUT

code 926.772.1Ed. 2 - 07/11

Baxi Potterton WH65, WH46 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual