Benchmark RD109 User Manual Download Page 3

Supplied By www.heating spares.co  Tel. 0161 620 6677

British Gas RD1

 

Users

3

CAUTION. 

 

To avoid the possibility of injury during the installation, servicing or cleaning

of this appliance care should be taken when handling edges of sheet steel components

Minimum clearances

A clearance of 533mm (21") MUST be available at the front of the
boiler for servicing.

The minimum clearances given below MUST be complied with
in order to maintain the safe running of the boiler. Refer to
Table 1.

To light the boiler. Refer to Frame 1

1. CHECK THAT THE ELECTRICITY SUPPLY TO THE BOILER

IS OFF.

2. Open the controls access door by hinging downwards.

3. Ensure that the gas service cock (D) is OPEN.

4. Press the overheat reset button (E), located as shown in

Frame 1.

5. Ensure that the thermostat on/off knob (B) is in the OFF

position.

6. Switch ON the electricity supply to the boiler. Check that all

external controls, e.g.programmer, room thermostat etc.,
are ON.

7. Set the boiler thermostat On/Off knob (B) to position 6. After

about 25 seconds the boiler will light automatically - this
can be viewed through the sight glass (A).
Set the boiler thermostat to the desired position.

8. Close the controls access door.

Note.

If the boiler fails to light after 5 attempts press the reset
switch (C) and the ignition sequence will be repeated. If the
boiler still fails to light consult a CORGI registered installer.

In winter conditions, i.e. central heating and domestic hot
water, the thermostat should be set at position 5 or 6.
For summer conditions, i.e. domestic hot water only, the
thermostat should be set at position 3.
These settings, however, are offered for general guidance only
and other settings may be found preferable, dependent upon
the type of system installed or as recommended by the
installer.

1

BOILER CONTROLS

LEGEND

A. Sightglass.

B. Thermostat On/Off knob.

C. Boiler reset switch.

View inside boiler controls area

D. Gas service cock

(shown in the OPEN
position).

E. Overheat thermostat

reset button.

Table 1

Above the boiler

100 mm

(4")

At each side of the boiler

5 mm

(

1/4

")

Underneath the boiler

100 mm

(4")

In front of the boiler

75 mm

(3 ")

Controls 
door

CL

 1037-4

Remote appliance diagnostic system

This appliance is capable of automatically communicating
operational data  to a central computer processing system via
the house ring main and telephone line, known as 'Remote
Appliance Diagnostic System' (RADS).
The information is transmitted in the early hours of the morning
once every 30 days, or immediately if the boiler develops a
fault.
If an attempt is made to use the telephone during the
transmission, some interference will be heard. In this event
replace the receiver and try again after 30 seconds.

Important points

a.

This appliance must not be operated without the casing
correctly fitted and forming an adequate seal.

b.

If the boiler is installed in a compartment then the
compartment MUST NOT be used for storage purposes.

c.

The ventilation provided for the boiler during installation
MUST NOT be blocked, and a check should be made
periodically that the ventilation areas are free from any
obstruction.

d.

If it is known or suspected that a fault exists on the boiler
then it MUST NOT be used until the fault has been corrected
by a CORGI registered installer.

e.

Flammable materials must not be placed in close proximity
to the appliance.  Materials giving off flammable vapours
must not be stored in the same room as the appliance.

f.

Where the  boiler is fitted with a Vertex flue system with a
draught diverter in the loft, the loft MUST NOT be ued as a
dwelling area.

g. Under NO circumstances should any of the sealed

components on this appliance be used incorrectly or
tampered with.

In cases of repeated or continuous shutdown 

a  CORGI

registered installer should be called to investigate and rectify
the condition causing this and carry out an operational test after
each intervention on the device.  Only the manufacturer's
original parts should be used for replacement.

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