IDEAL SPRINT RS 75 User Instructions

IDEAL
SPRINT
RS 75

W all Mounted Balanced
Flue Combination Boiler

User’ s Instructions

CAUTION:

To avoid the possibility of injury during the use or cleaning
of this appliance care should be taken when handling the
edges of sheet steel components

July 1987

G.C. Appliance No.
Ideal SPRINT RS. 75 47 415 01

Page 2

The Gas Safety Installation and Use Regulations: 1984

impose certain statutory obligations on gas users. Further
information may be obtained on application to the Gas Region.

It is the law that all gas appliances are installed by competent
persons, e.g. CORGI (identified by ) in accordance with the

above regulations.
Failure to install appliances correctly could lead to prosection.
It is in your own interest, and that of safety, to ensure that the

law is complied with.

ELECTRICAL SUPPL Y

If a mains plug connection is used, it MUST be a 3-pin type,
wired as shown in Fig. 1, and fused at 3 amp.

The appliance MUST be efficiently earthed.

As the colour of the wires in the mains lead of this appliance
may not correspond with the coloured markings identifying the
terminals in your plug, proceed as follows:

The wire which is coloured GREEN AND YELLOW must be
connected to the terminal in the plug which is marked with the
letter E or by the earth symbol

or coloured GREEN or

GREEN AND YELLOW.
The wire which is coloured BLUE must be connected to the

terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the

terminal which is marked with the letter L or coloured RED.

EARTH

(Green/yellow)

NEUTRAL

(Blue)

LIVE

(Brown)

Fig. 1

THREE-PIN PLUG
(T o BS.1363)

MINIMUM INSTALLATION AND SERVICING SIZES

Boiler size:

width 465mm (18 1/2in)
depth 300mm (12in)

height 900mm (36in)
The minimum clearances must be as follows:
Above the boiler 50mm (2in)
At each side of the boiler 10mm (1/2in)
Underneath the boiler 100mm (4in)
In front of the boiler 450mm (18in)
If the boiler is installed in a compartment it MUST NOT be used

for storage purposes.
The ventilation provided for the appliance during installation

MUST NOT be blocked and a check should be made
periodically that the ventilation areas are free from any
obstruction.

If it is known or suspected that a fault exists on the appliance it
MUST NOT be used until the fault has been corrected by a
competent person.

It is essential that the instructions in this booklet are strictly
followed for safe and economical operation of the boiler.

The IDEAL SPRINT RS.75 is a combination boiler providing
both central heating and instantaneous domestic hot water. The
two selector switches (G) and (J) permit the choice of hot water
only or central heating and hot water.

The dial on the control panel indicates the approximate system
temperature (upper scale) and the system pressure (lower
scale).

Note: If the normal COLD pressure of the system - indicated

by the red arrow on the dial - is seen to decrease over a
period of time then a water leak is indicated. In this
event your local Heating Installer should be consulted.

TO LIGHT THE BOILER

1. Check that the electricity supply to the boiler is OFF.

2. Lift off the controls compartment front cover.

3. Ensure the boiler HEATING switch (G) and WATER switch

(J) are in the OFF position.

4. Turn the gas control knob (F) CLOCKWISE until resistance
is felt and then release it.

WAIT for three minutes.

5. Push in the gas control knob (F) and hold it depressed. Push
in and release the ignition button (D) repeatedly until the
pilot flame can be seen through the sight glass (A).

When the pilot has lit, continue to press in the gas control
knob for a further fifteen seconds.

6. Should the pilot go out at this, or any other stage, turn the
gas control knob (F) CLOCKWISE and release it.

WAIT for three minutes and then repeat ‘5’ but WAIT FOR
LONGER THAN FIFTEEN SECONDS before releasing the
gas control knob.

7. Switch ON the electricity supply to the boiler and check all
external controls, e.g. room thermostat, etc., are ON. The
Mains On neon will glow.

8. Set the HEATING and WATER switches to the desired
positions:

(a) HEATING and HOT WATER MODE

When central heating and domestic hot water are required,
both switches should be set to ON.

The HEATING and WATER indicator neons (H) and (I)
respectively, will both glow.

The boiler will supply the central heating but will give priority
to the domestic hot water when required.

or (b) HOT WATER MODE.

When domestic hot water only is required the WATER switch
should be set to ON and the HEATING switch set to OFF.

The WATER indicator neon (I) will glow and the boiler will
only fire when domestic hot water is drawn off.

9. Replace the controls compartment front cover.

TO SHUT DOWN THE BOILER

1. For short periods:

Set the boiler HEATING switch (G) and WATER switch (J) to
OFF.

When heating is again required - restore the switches to
their original settings.