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Technical information

21

Gas pressures at the burner

Gas

Natural

G20

Butane

G30

Propane

G31

Max.

Pa

mbar

1550

15,5

2750

27,5

3530

35,3

Min.

Pa

mbar

350

3,5

580

5,8

780

7,8

Ignition Pa

mbar

1090

10,9

1930

19,3

2470

24,7

1 mbar approximately equals 10 mm H

2

O

Gas rate

Gas

Natural

G20

m

3

/h

Butane

G30

kg/h

Propane

G31

kg/h

Max.

3,54

2,60

2,56

Min.

1,60

1,18

1,17

Injectors

mm/100ø

Natural G20

120

Butane G30

78

Propane G31

78

Electrical Data

Voltage

V~

230

Frequency

Hz

50

Power consumption

W

170

Protection degree

IPX4D

External fuse rating

A

3

Internal fuse rating

A

F1---F2 3,15 AF

Flue design

Type C12 C32 C42 C52 C82
Flue pipe diameter
Coaxial

mm

60/100

Twin split pipes

mm

80

Roof

mm

80/125

Nominal heat flow rate

(A)(D)

kW

33,0

Exhaust temperature

(D)

˚

C

64

Mass flow rate

(D)

g/s

18,0

Flue gas figures

Nominal heat input

(A)(D)

kW

33,0

CO

2

content

%

7,7

O

2

content

%

7,3

CO content

ppm

82

Exhaust temperature

(D)

˚

C

64

NO

x

class

2

Weighted NO

x

ppm

103

Other specifications

Height

mm

803

Width

mm

400

Depth

mm

350

Weight (dry)

kg

44,5

Water volume in the boiler

(up to 1 bar)

l (kg)

4,1

(D)

Values refer to tests with a 1 m chimney working at the nominal heat input

IN

S

TA

LLA

TI

O

N

Summary of Contents for M96A.24SC

Page 1: ...all hung fan flue room sealed high efficiency gas boiler User manual and Installation instructions RIVA COMPACT HE MK2 Models M96A 24SM C Combi boiler M96A 28SM C Combi boiler M96A 32SM C Combi boiler...

Page 2: ...k that the installation of the gas supply is gas tight is of the correct gauge for the flow to the boiler is fitted with all the safety and control de vices required by the current Regulations n Ensur...

Page 3: ...eye will cause foreign body irritation which can cause severe irritation to people wearing contact lenses Irritation to respiratory tract Precautions Dust goggles will protect eyes People with a histo...

Page 4: ...It is also sensible to initially fire and com mission the boiler before connecting any ex ternal controls such as a room thermostat By this method if you have a subsequent prob lem following the addi...

Page 5: ...s for installation 27 6 3 Installing the bracket 27 6 4 Overall dimensions 28 6 5 Joints 28 6 6 Mounting the boiler 28 6 7 Fitting the flue system 29 6 8 Choice of flue 29 6 9 Electrical connections 3...

Page 6: ...et button 8 Function selector and c h temp control knob 9 D h w temperature control knob 10 Appliance operation lights 1 3 Isolation valves 14 12 16 13 15 11 Fig 1 2 bottom view of the boiler 11 Conde...

Page 7: ...he above table a fault may be indicated Reference should be made to the following table In this case switch off the boiler as described in section 2 6 on page 6 and call a competent and re sponsible S...

Page 8: ...ro cedure you are advised to contact your In staller or an Approved Engineer This appliance is provided with a built in anti freeze system that operates the boiler when the temperature is below 5 C Th...

Page 9: ...le from a minimum of about 40 C to a maximum of about 85 C Fig 2 6 by turning the function se lector 8 Adjustment of c h output on the boiler is auto matic The greatest output pre set in the factory c...

Page 10: ...d water In this way the automatic control facilities will be fully exploited Moreover where the amount of limescale present in the water may be particularly great not exceed ing the position in Fig 2...

Page 11: ...position the time display G is flashing Set the mode selector switch A to the position and press the buttons D or E until the current time appears in the display G The clock starts by moving the swit...

Page 12: ...different position Manual operation The operation of the time switch can be forced on or off constantly or for a timed period To force constantly on or off the timer operation set the mode selector sw...

Page 13: ...rresponding to 14 on off sequences Press repeatedly the button A until the display shows the symbol C1 Fig 2 21 The symbols shown in Fig 2 21 appears in the display A Fig 2 21 Press the buttons D or E...

Page 14: ...A Fig 2 24 The operation can be switched permanently on or off by pressing the button F and leaving the dis play shows the symbol TIMER To force a timed delay on or off operation press repeatedly the...

Page 15: ...ler or in IE a com petent person should be sought 3 4 Periodic maintenance For efficient and continuous operation of the boiler it is advisable to arrange maintenance and cleaning by an Authorised Ser...

Page 16: ...the section 2 2of thismanual If topping up with water has to be done very fre quently have the system checked for leaks If water comes out of the pressure relief valve Check on the temperature and pre...

Page 17: ...lve 25 Condensate trap 26 Automatic air purger valve 27 Pump vent plug 28 Pump 29 C h pressure relief valve 30 D h w flow switch 31 Modulation gas valve 32 Modulation operator 33 Gas valve outlet pres...

Page 18: ...Technical information 14 4 2 Main diagram 46 19 50 49 38 43 41 33 28 29 30 31 34 26 36 37 45 47 12 13 16 14 44 17 39 23 35 15 32 22 40 24 48 21 25 11 20 Fig 4 2 INSTALLATION...

Page 19: ...at exchanger 4 4 Expansion vessel Note this boiler is designed for operation only in a sealed central heating system The height difference between the pressure relief valve and the highest point in th...

Page 20: ...r Maximum temperature C 55 Minimum temperature C 35 Maximum pressure kPa bar 1 000 10 Minimum pressure kPa bar 30 0 3 Flow rate minimum l min 2 5 30 rise C l min 11 6 35 rise C l min 10 0 40 rise C l...

Page 21: ...mption W 140 Protection degree IPX4D External fuse rating A 3 Internal fuse rating A F1 F2 3 15 AF Flue design Type C12 C32 C42 C52 C82 Flue pipe diameter Coaxial mm 60 100 Twin split pipes mm 80 Roof...

Page 22: ...r Maximum temperature C 55 Minimum temperature C 35 Maximum pressure kPa bar 1 000 10 Minimum pressure kPa bar 30 0 3 Flow rate minimum l min 2 5 30 rise C l min 13 6 35 rise C l min 11 6 40 rise C l...

Page 23: ...mption W 150 Protection degree IPX4D External fuse rating A 3 Internal fuse rating A F1 F2 3 15 AF Flue design Type C12 C32 C42 C52 C82 Flue pipe diameter Coaxial mm 60 100 Twin split pipes mm 80 Roof...

Page 24: ...er Maximum temperature C 55 Minimum temperature C 35 Maximum pressure kPa bar 1 000 10 Minimum pressure kPa bar 30 0 3 Flow rate minimum l min 2 5 30 rise C l min 15 4 35 rise C l min 13 2 40 rise C l...

Page 25: ...umption W 170 Protection degree IPX4D External fuse rating A 3 Internal fuse rating A F1 F2 3 15 AF Flue design Type C12 C32 C42 C52 C82 Flue pipe diameter Coaxial mm 60 100 Twin split pipes mm 80 Roo...

Page 26: ...is drawn tothe requirementsof the current I E E Wir ing Regulations and in Scotland the electrical provisions of the Building Regulations applicable in Scotland with respect to the installation of the...

Page 27: ...in use at the same time Pipework must be of adequate size Pipes of a smaller size than the boiler inlet connection should not be used Installation pipes should be fitted in accordance with BS 6891 and...

Page 28: ...ally to air release points and water flows naturally to drain taps The appliance has a built in automatic air release valve it should be ensured as far as possible that the appliance heat exchanger is...

Page 29: ...The installer should ensure that no leaks exist either inside the boiler or on the system as fre quent filling of the system could cause premature scaling of the heat exchanger 5 9 Domestic water The...

Page 30: ...overvoltage cat egory III Alternatively it can be used a 3A fused three pin plug and unswitched shuttered socket outlet both complying with BS 1363 The point of connection to the electricity supply m...

Page 31: ...with during installation To allow maintenance procedures it is necess ary to leave the minimum gaps indicated in Fig 6 1 25 50 250 200 Fig 6 1 all dimensions in mm When installing the boiler in a cup...

Page 32: ...boiler 1 Take the protective caps off the boiler pipe work 2 Thoroughly clean the connections 3 Mount the boiler on its bracket 4 Fix the c h valves A and gas cock B to the boiler using the gaskets F...

Page 33: ...the boiler Fig 6 5 6 8 Choice of flue The following flue kits are available for connecting to the boiler Standard horizontal flue kit Fig 6 6A Co axial 60 100mm nominal length 1m Thiskitisnormally su...

Page 34: ...nation of the flue where the boiler is installed in a location remote to an outside wall These kits allow for separation of the air supply pipe from the pipe that discharges the exhaust gasses Consequ...

Page 35: ...h al lows the flue system to be extended to a total overall maximum permissible length Optional 45 and 90 elbowscan be used tooffset the flue route Each additional elbow reduces the overall accept abl...

Page 36: ...in Fig 6 14 and pull the control panel When completely pulled out the panel can ro tate 45 downwards to facilitate the operations on the internal parts Fig 6 14 5 Loosen the screws L and remove the s...

Page 37: ...Power supply terminal block External controls terminal block T Room thermostat 1 2 L N 3 Fig 6 17 9 Route the electrical supply flexible cord and the external control flexible cord as illustrated in F...

Page 38: ...de scribed in BS 6891 For Ireland IE refer to I S 813 2002 2 Open the gas cock 14 Fig 7 1 on the appliance and check the gas connector on the appliance for leaks Open position 14 13 Fig 7 1 7 3 Fillin...

Page 39: ...fter 3 4 minutes has elapsed the boiler will then re ignite and operate perfectly normally The ignition delay cycle does not prevent normal operation of the boiler to pro vide d h w If externalcontrol...

Page 40: ...4 5 or 4 6 or 4 7 then adjustment will be necessary A full explana tion of the gas pressure adjustment procedure is given in the Gas Valve section of the service manual If maximum and or minimum gas...

Page 41: ...ons 4 5 or 4 6 or 4 7 of this manual Flue gas figures 7 11 Checking the condensate drain pipe Check the soundness and integrity of the conden sate drain pipe Verify the cleanness and correct filling o...

Page 42: ...tion Ignition and detection electrodesin the service manualfor detailed in structions 5 Carry out the conversion for the type of gas re placing the burner injectors correctly 6 Re assemble the burner...

Page 43: ...e gas cock 14 in Fig 8 7 Open position 14 Fig 8 7 16 To reset the boiler to the normal operation turn it ON by the function selector 8 on the desired operation and checking the ignition pressure and t...

Page 44: ...oiler panels 9 2 Dismantling the external panels Front panel 1 Loosen the three screws A Fig 9 1 2 Lift and remove the panel A Sampling points Air Flue exhaust Fig 9 1 Side panels 3 Loosen the screws...

Page 45: ...type burner 40 on page 13 does not need special maintenance but it is sufficient to dust it with a bristle paintbrush To reach the burner 1 Take off the front of the case 2 Take off the removable fro...

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Page 48: ...1548 0 4908 48A5 UK Biasi UK Ltd Newman Park Western Way Wednesbury WS10 7BJ Sales Tel No 0121 506 1340 Sales Fax No 0121 506 1360 Service Tel No 0121 506 1350 Service Fax No 0121 506 1370 www biasi c...

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