DèLonghi GSI503 Operation instructions

GSI503
gas cooker
Before operating this cooker,
please read these instructions carefully
Users Operating Instructions
GB

2
Dear Customer
Thank you for choosing one of our appliances which has been carefully designed and
built by our specialist staff and thoroughly tested to satisfy your cooking requirement.
We suggest that you read this Instruction Booklet so that you will understand fully how
to operate the appliances.
Please keep the booklet handy. You may wish to refer to it at a later date.
De Longhi

3
Contents
Model GSI503
Page Number
Features and technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Hotplate glass cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
How to use the hob burners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Hob burners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Lighting of the hob burners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Choice of the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
How to use the gas oven . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Lighting the oven gas burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Oven thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Oven cooking temperatures table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
How to use the grill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Lighting the grill burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Important notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
After sales service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Do’s and do not’s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Care and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
For the installer
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Stability bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Provision for ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Gas installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Gas connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Conversion to LPG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
1 - Injectors replacement of top burners . . . . . . . . . . . . . . . . . . . . . . . . . . .21
2 - Adjusting of primary air of the top burners . . . . . . . . . . . . . . . . . . . . . . .21
3 - Adjusting of the minimum of the top burners . . . . . . . . . . . . . . . . . . . . .22
Table for the choice of the injectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
4 - Replacement of the oven burner injector . . . . . . . . . . . . . . . . . . . . . . . .24
5 - Replacement of the grill burner injector . . . . . . . . . . . . . . . . . . . . . . . . .24
6 - Primary air of the oven burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
7 - Primary air of the grill burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
8 - Regulating of the oven minum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Lubrication of the gas taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

4
Features and technical data
Gas burners (Fig. 1)
1. Auxiliary burner (A)
1.00 kW
2. Semi-rapid burner (SR)
1.90 kW
3. Semi-rapid burner (SR)
1.90 kW
4. Rapid burner (R)
3.25 kW
Gas oven
– Gas burner - 3.25 kW
– Grill burner - 2.35 kW
– Usable oven volume
43 dm3
Control panel (Fig. 1)
5. Front left burner (1)
control knob
6. Rear left burner (2)
control knob
7. Rear right burner (3)
control knob
8. Front right burner (4)
control knob
9. Oven/Grill control knob
10. 60’ timer
11. Ignition push-button
12. Oven light switch
Fig. 1
500 mm
500 mm PLINTH
900 mm
2134
5 6 7 8 10 9
12
11

Hotplate glass cover
Timer
5
Fig. 2
60’ timer
The timer can be set to a maximum of 60 minu-
tes. Turn the dial clockwise to the maximum set-
ting of 60 minutes then turn it anti-clockwise until
it reaches the desired time. When the set time
expires the timer bell will sound.
NOTE: The oven will not switch itself off at
the end of the timed period.
WARNING
Always ensure that all the control knobs are in the off position before the glass
cover is closed.
Failure to do so could result in damage to the cover and/personal injury.
The hotplate glass cover
The glass cover is not intended as a working surface and should not be used for this
purpose. Care must be taken to avoid scratching or damaging the glass cover which
could cause the glass to break.
The glass cover operates a safety valve that shuts off the supply of gas to the cooker
when the cover is closed. The supply of gas will be restored when the cover is
reopened. Do not use this facility as a means of controlling the burners. This device is
fitted solely for the purpose of safety.

6
How to use the hob burners
The hob is made of steel coated with
vitreous enamel to provide a durable
and attractive surface.
Hob burners
Each hob burner is controlled by a
separate gas tap operated by a control
knob (fig. 3) which has 3 positions
marked on the knob, these are:
– Symbol ●: tap closed (burner off)
– Symbol : High (maximum)
– Symbol : Low (minimum)
Lighting of the hob burners
Push the ignition push-button 10 (marked with the symbol ★) and push in and turn the
appropriate control knob in an anti-clockwise direction until the maximum position (marked
with the large flame symbol ) is reached, after the burner lights, adjust the flame to the
setting you require.
Push in and turn the knob anti-clockwise to the selected position.
Low High
To turn the burner off, fully rotate the knob clockwise to the off position: ●.
The maximum setting of the control tap is for boiling, the minimum setting is for slow
cooking and simmering.
All working positions must be chosen between the maximum and minimum setting,
never between the maximum setting and the “OFF” position.
Fig. 3

7
Burners Pan diameter
Auxiliary 16 cm
Semi-rapid 16 ÷ 22 cm
Rapid 22 ÷ 26 cm
Fig. 4
Choice of burner
The burner must be chosen according to the diameter of the pans and energy required.
The hotplate has been designed with safety in mind, however normal care in use should
be observed.
Do take care to avoid burns and scalds when reaching across the hotplate.
Pans with flat bases are more stable than those which are warped.
Saucepans with handles which are excessively heavy, in relationship to the weight of the
pan, are safer as they are less likely to tip.
Pans which are positioned centrally on burners are more stable than those which are
offset.
It is far safer to position the pan handles in such a way that they cannot be accidentally
knocked.
When deep fat frying fill the pan only one third full of oil.
DO NOT cover the pan with a lid and DO NOT leave the pan unattended.
In the infortunate event of a fire, leave the pan where it is and turn off all controls.
Place a damp cloth or correct fitting lid over the pan to smother the flames.
DO NOT use water on the fire.
Leave the pan to cool for at least 30 minutes.

8
How to use the gas oven
Fig. 5
Lighting the oven gas burner
The thermostat allows the automatic control of the temperature.
The gas delivery to the oven burner is controlled by a two way thermostatic tap (oven
and grill burners) with flame-failure device.
To light the oven burner operate as follow:
- Open the oven door and apply a lighted mach or taper to hole “A” in the oven base
plate (fig. 6)
- Push and turn the oven knob anti-clockwise to position 230.
- Once the oven burner is lit, wait for about 15 seconds before releasing the knob (time
of priming of the valve) and then close the oven door slowly.
Turn the oven knob to the position for the required temperature (see the thermostat
grade table).
Should the flame of the burner estinguish for any reason, the safety valve will cut
off automatically the gas flow to the tap. To re-start operation, take the knob to
“off” position and repeat operations as above explained.
Oven thermostat
The thermostatic control tap knob (fig. 4) is marked with numbers from 130 to 230,
these correspond to the oven temperature, in addition the “OFF” position is shown by
the symbol ●.
To choose the required oven temperature (check with the “Oven cooking guide”), turn
the control knob until the number, required is level with the line mark on the control
panel (facia).
Fig. 6
A

9
Oven cooking temperatures
MARK APPROX. HEAT OF TYPE OF DISH TO COOK
TEMP. OVEN
130 130°C Very cool Meringue cakes,
oven slow cooking items
- 140°C Cool or Milk puddings, very rich fruit
slow oven cakes, i.e., Christmas
155 155°C Cool or Stews, casseroles, braising,
slow oven rich fruit cakes, i.e., Dundee
- 165°C Warm oven Biscuits, rich plain cakes
i.e., Madeira. Low temp. roasting
180 180°C Moderate Plain cakes, Victoria
oven sandwich, raised meat pies
- 190°C Fairly hot Small cakes, savoury flans,
oven fish
205 205°C Hot oven Plain cakes and buns, swiss rolls,
fruit pies. High temp. roasting
- 215°C Moderately Bread and bread rolls etc., scones,
hot oven flaky and rough puff pastry,
yorkshire pudding
230 230 Very hot Sausage rolls, mince pies, puff
oven pastry, pizza
Browning ready cooked dishes

10
How to use the grill
Fig. 7 Fig. 8
Lighting the grill burner
Do not grill with oven door closed.
Always fit the heat shield supplied with the cooker under the front panel before
commencing operations (Fig. 8).
WARNING. The heat shield and the oven door reaches a very high temperature
whilst in use. Keep children away and allow to cool before removing.
The grill burner generates the infra-red rays for grilling.
To light the grill burner operate as follow:
- Open the oven door and apply a lighted match or taper to the grill burner (fig. 7)
- Push and turn the grill/oven knob clockwise until you match the symbol with the
control panel reference line.
- Once the grill burner is lit, wait for about 15 seconds before releasing the knob (time
of priming of the valve) and than set the oven door in half-closed position.
Should the flame of the burner estinguish for any reason, the safety valve will cut
off automatically the gas flow to the tap. To re-start operation, take the knob to
“off” position and repeat operations as above explained.
Notes:
– The grill burner has only one setting, that is full-on
– It is important that the heat shield is fitted the correct way up, as shown in the figure 7.

11
Important notes
Installation, and any demonstration, information or adjustments are not included in the
warranty.
The cooker must be installed by a qualified person in accordance with the Gas Safety
(Installation and Use) (Amendment) Regulations 1990 and the relevant building/l.E.E
Regulations.
Failure to install the appliance correctly could invalidate any manufacturers warranty and
lead to prosecution under the above quoted regulation.
In the UK C.O.R.G.I registered installers are authorised to undertake the installation and
service work in compliance with the above regulations. All Comet authorised installers
are C.O.R.G.I. registered.
Attention
The appliance gets very hot, mainly around the cooking areas. It is very
important that children are not left alone in the kitchen when you are cooking.
After Sales Service
Please contact a Comet Service Centre in case of assistance.

12
Do’s and do not’s
Do’s and do not’s
• Do always grill with the oven door open (see figure 8).
• Do always remove the detachable handle when using the grill pan.
• Do read the user instructions carefully before using the cooker for first time.
• Do allow the oven to heat for one and a half hours, before using for the first time, in
order to expel any smell from the new oven insulation, without the introduction of
food.
• Do clean your oven regularly.
• Do remove spills as soon as they occur.
• Do always use oven gloves when removing food shelves and trays from the oven.
• Do not allow children near the cooker when in use.
• Do not allow fat or oils to build up in the oven trays, grill pan or oven base.
• Do not place cooking utensils or plates directly onto the oven base.
• Do not grill food containing fat without using the grid.
• Do not cover the grilling grid with aluminium-foil.
• Do not use the oven tray for roasting.
• Do not place hot enamel parts in water. Leave them to cool first.
• Do not allow vinegar, coffee, milk, saltwater, lemon or tomato juice to remain in
contact with enamel parts.
• Do not use abrasive cleaners or powders that will scratch the surface of the enamel.
• Do not attempt to repair the internal workings of your oven.
• Do not rest hot pans or heavy objects on the cooker lid.
• Do remove any spillages from the surface of the cooker lid before opening.
For your safety
The product should only be used for its intended purpose which is for the cooking of
domestic foodstuffs.
Under no circumstances should any external covers be removed for servicing or
maintenance except by suitably qualified personnel.

13
Fig. 9
S
1
4
3
P
F
3
Fig. 10 Fig. 11
D
Glass lid
For cleaning purposes, the lid can be easily removed upwards once taken to the upright
position in the following way:
1. Lift the right side of the lid, lightly move it to the right and remove upward (Fig. 9 e 10).
To assembly the lid it is necessary to proced as follows:
2.
Should the hinges slip off, replace them in their housing being careful that: - The right
housing must receive the hinge marked Dwhile the left housing must receive the hinge
marked S(Fig. 9)
3. With the lid in upward position insert the pin Pin the hole F(Fig. 10).
4. Insert the right hinge in the support D.
Care and maintenance
Regulating of the lid balance
Lower the lid and check the correct balance. While opened at 45° it should hang up.
The springs of the hinges can be adjusted if necessary by turning the screws Rclockwise
(fig. 11).

14
Cleaning the hob
Spillage on the hob can usually be removed by a damp soapy cloth. More obstinate
stains can be removed by rubbing gently with a soapy scouring pad or mild household
cleaner.
Burners
To be washed only with soapy water.
After each cleaning, make sure that the burner-caps, as well as the burners, have been
well wiped off and CORRECTLY POSITIONED.
It is essential to check the correct position of the burner-caps as the least displacement
from the housing may cause serious problems.
Gas taps
If a tap becomes stiff, do not force; contact your local Service Centre.
(See enclosed Service Information)
Preparing the oven
Clean the oven thoroughly before using it
for the first time; use water and soap, then
rinse carefully.
Once the above operations are completed,
heat the oven to the max. temperature for
about one and a half hours so as to
eliminate any residual factory grease that
might impart unpleasant smells to the meals
being cooked.
The oven shelves are provided with safety stops.
To change the shelf position remove and replace the shelves as shown below (fig. 12).
Important:
As a safety measure, before you start cleaning the cooker be sure to disconnect it from
the mains supply.
Fig. 12
Cleaning oven parts after use
The oven interior and the chromium plated shelves can be cleaned by damp soapy
cloth. Obstinate stains can be removed with nylon scouring pads and gentle, non-
abrasive, liquid cleaner. Provided the oven is wiped over immediately after roasting,
only the minimum of cleaning should be necessary.

15
Door glass
The glass of the oven door can be cleaned with a soft, warm, soapy cloth, then wiped
clean with cold water and polished with a soft clean cloth. Do not use scouring pads
or anything abrasive on the oven door glass.
Removal of the inner glass door panel
The inner glass door panel can easily be removed for cleaning by unscrewing the two
screws. Figure 13.
During re-assembly, ensure that the inner glass is correctly aligned and do not over
tighten the screws.
Removing the oven door
To facilitate oven cleaning, it is possible to remove the door.
Hinge “A” have two removable clips “B” which can be connected to parts “C” of the
hinges when the door is completely open in order to lock this in position.
Following this, the door can be lifted upwards and removed. Do this, lever on the sides
of the door near the hinges.
To remount the door, first insert the hinges in their grooves. Now close the door.
Do not forget to remove the two movable clips “B” used to link to the two hinges.
AB
C
Fig. 14
Fig. 13

16
FOR THE INSTALLER
The cooker may be located in a kitchen, a kitchen/diner or bed-sitting room but not in a
room containing a bath or shower.
It is essential that the cooker is positioned as stated below.
The cooker must be a minimum of 5 mm from the rear wall.
Shelves and wall cabinets must not be fitted closer than 800 mm to the hob burners.
Curtains must not be fitted immediatly behind appliance or within 500 mm of the sides.
Base unit which are above the height of the hotplate should be 300 mm away.
It is advisable that the kitchen furniture near the sides of the cooker is made of heat resistant
material, and the 20 mm air gap be maintained.
Fig. 15
Location
500 mm
300 mm
20 mm
500 mm
800 mm

17
Fig. 16
Stability bracket
We recommend a stability bracket is fitted to the cooker.
The type shown in fig. 16; these can be purchased from most plumbers merchants and
do it yourself (D.I.Y.) shops.
Wall fixing
Floor fixing
Brackets
Existing
slot in rear
of cooker
Dotted line showing the
position of cooker when fixed
3
Outline of cooker
backplate at the
engagement slot

18
Provison for ventilation
The room containing the cooker should have an air supply in accordance with BS.5540:
Part 2: 1989.
All rooms require an openable window or equivalent while some rooms require a
permanent vent in addition to the openable window.
The cooker should not be installed in a bed-sitting room, of volume less than 21 m3.
Where a DOMESTIC COOKER is installed in a room or internal space, that room or
internal space shall be provided with a permanent opening which communicates
directly with outside air and is sized in accordance with table below. In domestic
premises the permanent opening shall be an air vent.
If there are other fuel burning appliances in the same room, BS.5540: Part 2: 1989 should
be consulted to determine the requisite air vent requirements.
If the cooker is installed in a cellar or basement, it is advisable to provide an air vent of
effective area 100 cm2, irrespective of the room volume.
(❊)If the room or internal space containing these appliances has a door which opens
directly to outside, no permanent opening is required.
MINIMUM PERMANENT OPENING FREE AREA FOR FLUELESS APPLIANCE
5 m3to 10
m3
Openable
window or
equivalent also
required
Maximum
appliance
rated input
limit
Room volume
11 m3to
20 m3
> 20 m3 < 5 m3
Type of appliance
Domestic oven, hotplate,
grill or any combination
thereof.
None 50 (❊)
cm2
Nil
cm2
Nil
cm2
100
cm2Yes

19
Gas installation
IMPORTANT NOTE
This appliance is supplied for use on NATURAL GAS only and cannot be used on any
other gas without modification.
This appliance is manufactured for conversion to LPG and is supplied with a conversion
kit.
The cooker must be installed by a qualified person in accordance with the Gas Safety
(Installation and Use) (Amendment) Regulation 1990 and the relevant building/l.E.E.
Regulations.
The following British Standards should be used as reference when installing this
appliance.
BS6172 1990, BS5440 part 2 1989 and BS6891 1988.
Failure to install the appliance correctly could invalidate any manufacturers warranty and
lead to prosecution under the above quoted regulation.
In the UK C.O.R.G.I registered installers are authorised to undertake the installation and
service work in compliance with the above regulations.

20
Fig. 17
Gas connection
The installation of the cooker to Natural Gas or LP Gas must be carried out by a
qualified gas engineer. Installer shall take due account of the provisions of the relevant
British Standards Code of Practice, the Gas Safety Regulations and the Building Standards
(Scotland) (Consolidation) Regulations issued by the Scottish Development Department.
Installation to LP Gas
This appliance must only be connected to LPG after an LPG conversion kit has been
fitted, (see pages from 20 to 26).
When operating on Butane gas a supply pressure of 28 mbar is required.
When using Propane gas a supply pressure of 37 mbar is required.
The installation must conform to the relevant British Standards.
Installation to Natural Gas
Installation to Natural Gas must conform to the Code of Practice, etc. The supply
pressure for Natural Gas is 20 mbar.
Warning: Only a qualified gas engineer, also with technical knowledge of electricity
should install gas cookers. They should observe the Regulations and Codes of Practice
governing such installation of gas cookers.
Note: It is recommended that the gas connection to the cooker is installed with
a flexible connecting tube made to BS 5386.
Gas connection
The gas supply must be connected to the gas inlet which is located at the left hand
rear of the appliance (see figure 17)