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British Gas RD1

 

Installation & Servicing

5

GENERAL

INTRODUCTION

The 330-3100 RD1 is a range of automatically fully controlled,
wall mounted, balanced flue, fanned gas boilers.

The heat exchanger is cast iron.  The boiler casing is of white
enamelled mild steel.

The boiler casing has a removable controls support containing a
drop-down door. The boiler thermostat is located behind the drop-
down door.

The boilers are suitable for connection to pumped, open vented
and sealed central heating systems; pumped central heating
combined with pumped or gravity indirect domestic hot water
systems; gravity or pumped indirect domestic hot water supply
systems.

Note. 

The 3100 is not suitable for gravity circulation.

The boilers are supplied with a standard flue kit suitable for rear
or side outlet applications from 114 mm (4 1/2") to 600 mm
(23 1/2").

OPTIONAL EXTRA KITS

A Vertex Flue Kit*

For vertical flue connection
(360 & 380 models only)

Roof Flue Kit*

-

90°

 

Flue Elbow Kit*

-

Sealed System Unit* This fits on top of the appliance.

Extension ducts*

Up to 3m (118")
(330 to 380 models only)

Turret Outlet Kit*

               * 

Not available for 3100.

REMOTE APPLIANCE DIAGNOSTIC SYSTEM

The diagnostic controls within the boiler are capable of
communicating key operational data to a central computer data
processing system via the house ring main and public
telephone system known as Remote Appliance Diagnostic
System (or RADS).

RADS can identify actual failure, or predict imminent failure of
components and specify the corrective procedures to the
British Gas Service Engineer.
To enable the system to operate, a remote mounted interface
(Gateway) is required to receive and transmit data  from the
boiler.
Without this facility, the boiler operates as standard fanned
flued boiler.

Current Gas Safety (Installation and Use) Regulations
or rules in force.

It is law that all gas appliances are installed by a CORGI
registered installer  in accordance with the above regulations.
Failure to install appliances correctly could lead to prosecution.
It is in your own interest, and that of safety, to ensure the law is
complied with.

The installation of the boiler MUST also be in accordance with
the latest I.E.E (BS.7671) Wiring Regulations, local building
regulations, bylaws of the local water authority, the Building
Regulations and Building Standards (Scotland) and any
relevant requirements of the local authority.  Detailed
recommendations are contained in the following British
Standard Codes of Practice:

BS.6891

Low pressure installation pipes.

BS.6798

Installation of gas fired hot water boilers of rated
input not exceeding 60 kW.

BS.5449

Forced circulation hot water systems.

BS.5546

Installation of gas hot water supplies for domestic
purposes (2nd Family Gases).

BS.7593

Treatment of water in domestic hot water central
heating systems.

BS.5440.1 Flues for gas appliances of rated input not

exceeding 70 kW.

BS.5440.2 Ventilation for gas appliances of rated input not

exceeding 70 kW.

Health & Safety Document No. 635

The Electricity at Work Regulations, 1989.

Manufacturer’s notes must NOT be taken in any way as
overriding statutory obligations.

IMPORTANT. These appliances are certificated by the BG
Technology Certification Services for safety and performance. It
is, therefore, important that no external control devices, e.g. flue
dampers, economisers etc., are directly connected to these
appliances -unless covered by these Installation and Servicing
instructions or otherwise recommended by British Gas Services
in writing.
If in doubt please enquire.

Any direct reconnection of a control device not approved by
British Gas Services could invalidate the Certification and the
normal appliance warranty. It could also infringe the Gas Safety
Regulations and the above regulations.

SAFE HANDLING OF SUBSTANCES

Care should be taken when handling the boiler insulation panels,
which can cause irritation to the skin. No asbestos, mercury or
CFC's are included in any part of this boiler.

LOCATION OF BOILER

The boiler must be installed on a flat and vertical  wall, capable
of adequately supporting the weight of the boiler and any
ancillary equipment.

The boiler may be fitted on a combustible wall and insulation
between the wall and the boiler is not necessary - unless
required by the local authority. The boiler must not be fitted
outside.

Timber Framed Buildings
If the boiler is to be fitted in a timber framed building it should be
fitted in accordance with the Institute of Gas Engineers
document  IGE.UP/7;1998.

Bathrooms
This range of appliances is rated IP 1XB.

The boiler may be installed in any room or internal space,
although particular attention is drawn to the requirements of the
current I.E.E. (BS.7671) Wiring Regulations and, in Scotland,
the electrical provisions of the building regulations applicable
in Scotland with respect to the installation of the boiler in a
room or internal space containing a bath or shower.

If the appliance is to be installed in a room containing a bath or
shower then, providing water jets are not going to be used for
cleaning purposes (as in communal baths/showers), the
appliance can be installed in Zone 3, as detailed in BS.7671.

Where installation will be in an unusual location, special
procedures may be necessary and BS.6798 gives detailed
guidance on this aspect.

Summary of Contents for British Gas 330 RD1

Page 1: ...INSTALLATION M A N U A L British Scottish Gas RD1 the wall hung boiler Wall hung gas fired fanned flue boiler Installers guide to central heating boilers SERVICING 330 3100 RD1...

Page 2: ...Complete range There are 7 models in the range All models include a Downward Routing Pipe Kit and an overheat thermostat Full system suitability Most models are suitable for connection to pumped open...

Page 3: ...45 1 5 Electrical supply 230 V 50 Hz Boiler power consumption 150W Fuse rating External 3A Internal F2A to BS 4265 Water content litre gal 2 7 0 6 3 65 0 8 4 65 1 0 4 65 1 0 Dry Weight kg lb 40 9 90...

Page 4: ...this case are concentric The fan is down stream of the combustion chamber I2H An appliance designed for use on 2nd Family gas Group H only B G Certified P I No 87 BL 27 Destination Countries GB Natura...

Page 5: ...t water boilers of rated input not exceeding 60 kW BS 5449 Forced circulation hot water systems BS 5546 Installation of gas hot water supplies for domestic purposes 2nd Family Gases BS 7593 Treatment...

Page 6: ...the space in which the boiler is to be installed must be at least wide enough to accommodate the tool c If using the Complete Sealed System Unit then refer to the instructions packed with the unit fo...

Page 7: ...g Installation pipes MUST be fitted in accordance with BS 6891 Pipework from the meter to the boiler MUST be of an adequate size 3100 models should be piped in 22mm minimum The final 1 metre may be ru...

Page 8: ...sing mains electricity should be so situated that it cannot be touched by a person using the bath or shower See Frame 31 for details the cupboard compartment at both high and low levels The air vents...

Page 9: ...a domestic circulator capable of providing an 11 C 20 F temperature differential e g Grundfos UPS 15 50 or equivalent The vertical distance between the pump and feed expansion cistern MUST comply with...

Page 10: ...st be connected at a point close to the inlet side of the pump the connecting pipe being not less than 15mm 1 2 nominal size and not incorporating valves of any sort b The vessel capacity must be adeq...

Page 11: ...valve and a stop valve with an automatic air vent connected between them the stop valve being located between the system and the automatic air vent The stop valve may remain open during normal operati...

Page 12: ...ravity horizontal pipes should be ABOVE ceiling level and as SHORT as possible A MINIMUM inclination of 25mm per 3m run 1 per 10 is required to avoid air locks If these conditions cannot be met pumped...

Page 13: ...ted below Wall mounting template Wall mounting plate Side outlet terminal mounting plate Flue extension tube Boiler sealing ring Flue elbow Downward routing pipe kit Boiler Hardware Pack Contents 50mm...

Page 14: ...applicable the extension flue box es 10 PACKAGING AND CASING REMOVAL 11 DOWNWARD ROUTING PIPE KIT Product Qty Downward pipe routing bracket 2 off M8 Spacing pillar 1 off M5 Spacing pillar 1 off Panel...

Page 15: ...t with the support bracket It is MOST IMPORTANT that the boiler is installed in a vertical position Flue length mm Accessories Product No Up to 600 B Pack 1 off 150 308 600 to 1550 B Pack 1 off D Pack...

Page 16: ...d in a separate kit must be used These brackets are secured to the wall mounting plate and it is essential to use only those holes as shown on the wall mounting template 1 An optional flue duct extens...

Page 17: ...Flue extension ducts 1 Cut the flue hole preferably with a 125mm 5 core boring tool ensuring that the hole is square to the wall If the hole has been accurately cut with a drill then making good the...

Page 18: ...e outer flue duct This ensures correct alignment of the flue terminal 4 Stick the self adhesive foam strip provided in the hardware pack onto the flue immediately behind the boiler sealing ring 21 FIT...

Page 19: ...blanking plate from the direction required and use this to blank off the rear outlet Side and rear flue 2 Lift the boiler onto the wall mounting plate hooks as shown Do not use the burner controls fo...

Page 20: ...50 B Pack 1 off D Pack 1 off see Frame 12 1550 to 2500 B Pack 1 off D Pack 2 off see Frame 12 2500 to 3000 B Pack 1 off D Pack 3 off see Frame 12 Note Side flue shown 26 FLUE EXTENSION DUCTS For flue...

Page 21: ...Hz is required All external controls and wiring must be suitable for mains voltage Wiring should be in 3 core PVC insulated sheathed cable not less than 0 75mm2 24 x 0 2mm to BS 6500 Table 16 Wiring R...

Page 22: ...e wired in parallel with the control s to be overridden Refer to Frame 38 4 If a proprietary system is used follow the instructions supplied by the manufacturer Advice on required modifications to the...

Page 23: ...w or or r b b r r w w b br y y y g y g y g pky w pk y r r r w y g 34 PICTORIAL WIRING IMPORTANT No system controls to be wired in this mains supply Notes 1 Some earth wires are omitted for clarity En...

Page 24: ...terminals on thermostats see the manufacturer s literature 3 This is a fully controlled system set the boiler thermostat to maximum 4 Switchmaster Smiths valves are similar but note that the GREY wire...

Page 25: ...should suffice for all systems which do not use the OFF terminals of the programmer Diagram B shows a change over frost stat which will cover most systems which do use CH OFF If however on such a sys...

Page 26: ...wing the control box back into its working position 6 Switch the electricity supply ON and check that all external controls are calling for heat 7 Press the boiler reset switch H and the overheat ther...

Page 27: ...service contract yourself or alternatively offer to the customer the benefits of the British Gas Services details of which are outlined in the household pack supplied with this boiler After completin...

Page 28: ...the burner downwards to disengage the retention tab Remove the burner to a safe place for inspection and cleaning 2 Remove the fixing screws and swing the control box down into the servicing position...

Page 29: ...lue elbow and flue connector Disconnect the flue connector from the elbow and slide into the flue Remove the flue elbow 5 Disconnect the silicon rubber tube from the rear of the collector hood 6 Slack...

Page 30: ...etailed in Frame 48 and ensuring that there is an inlet pressure of 20 mbar available the pilot does not light then contact British Gas Services Relight in accordance with Initial Lighting Frame 40 52...

Page 31: ...of the switch 12 Press in the 2 side retaining clips and remove the switch 13 Replace and reassemble in reverse order 14 Check the operation of the boiler 54 CONTROL POTENTIOMETER THERMISTOR SENSOR LE...

Page 32: ...he burner 4 At this stage the main burner injector can be removed checked cleaned or replaced as required Ensure that an approved jointing compound is used sparingly 5 Fit the new burner ensuring that...

Page 33: ...hdraw from the control box 6 Fit the new PCB and reassemble in reverse order 7 Check the operation of the boiler Fuse To change the fuse prise the top off the holder and disengage the fuse Refer to Fr...

Page 34: ...6 3 Drain the system 4 Disconnect the water connections If compression fittings are used then cut the pipes both above and below the fittings in order to allow the heat exchanger assembly to be remove...

Page 35: ...S NO Change pressure switch Is fault corrected Is the boiler casing correctly fitted Does the main burner light NO YES YES Does the hot surface igniter turn off NO Is there a gas supply to the boiler...

Page 36: ...71 441 18 308 317 Detection electrode complete with lead and backnut 410 mm lg 1 171 442 18 1 Hot surface igniter 330 340 1 171 973 18 2 Hot surface igniter 350 380 3100 1 171 490 19 E58 681 Control b...

Page 37: ...ARTS LEGEND Numbers up to 51 relate to the B G spares list 10 Burner manifold 11 Air box and pilot assembly 12 Main burner 13 Main burner injector 67 BURNER ASSEMBLY Exploded View 16 Pilot shield 17 G...

Page 38: ...LIST OF PARTS LED 1 LED 2 LED 3 LED 4 23A Fuse 21A Cla 2710 58A 26 LEGEND 19 Control box 21A Thermostat potentiometer 26 Thermostat knob 23A Printed circuit board 58A Lockout reset switch 68 CONTROL B...

Page 39: ...British Gas RD1 Installation Servicing 39 NOTES...

Page 40: ...British Gas by Ideal Boilers British Gas Services Limited Registered in England No 3141243 Registered Office Millstream Maidenhead Road Windsor Berkshire SL4 5GD British Gas Services Ltd has made eve...

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