Download  Print this page

Nominal Heat Output; Checking The Supply Pressure; Safety Devices; Operation Check - Electrolux 267752 Installation, Operation And Maintenance Manual

Gas steam/convection ovens
Hide thumbs

Advertisement

USA

6.2 NOMINAL HEAT OUTPUT

For data concerning the nominal heat output refer to "Technical
Data" in Table 1.
This parameter is determined by the pressure of the gas supply
and the diameter of the gas valve diaphragm (nozzle).
The appliance nominal heat output must always be checked (by
the authorised installer or by the gas utility company), both in the
case of new installations or following maintenance work.
It is strictly prohibited to make changes to the nominal heat
output.

6.3 CHECKING THE SUPPLY PRESSURE

(Fig. 2a)
The gas supply pressure must be measured upline from the gas
shut-off valve cock with the appliance operating, using a pressure
gauge with minimum resolution of 0.1 mbar and proceeding as
outlined below:
1) Remove the left hand side panel to gain access to the gas valve;
2) Loosen sealing screw "C" from the gas valve pressure test
point and connect the pressure gauge hose in its place;
3) Open the gas shut-off cock;
4) Start a cooking cycle (see "Instructions for use") in such a
way that all the burners can be lit;
5) Check that the pressure reading is within the values given in
the following table by adjusting the external gas regulator:
GAS TYPE
Nom.
NATURAL
PROPANE
If the values are not within the values shown in the table the
appliance will not function.
In this case inform your gas utility company of the problem;
6) Once you have measured the supply pressure stop the cooking
cycle and close the gas shut-off cock valve.
7) Disconnect the pressure gauge and carefully refi t and tighten
sealing screw "C";
8) Refi t the previously removed side panel.
E1
E
D
C
neywell_sigma

7. SAFETY DEVICES

The appliance is supplied with the following safety devices:
- Fuses (see electrical circuit diagram) located behind the control
panel.
To change a fuse unscrew and remove the retainer cap and
replace the blown fuse with an identically rated component; the
fuse rating value is specifi ed on the relative dataplate.
- Oven chamber safety thermostat with manual reset, located
behind the control panel; when this device trips, convection heat-
ing power is disconnected.
PRESSURE (MBAR)
Min.
Max.
2a
- Automatic reset thermal protection inside the cavity fan motor:
this device trips in the event of overheating of the cavity fan motor.
The error message EFAN is displayed.
SERVICE COMPANY TO PERFORM REPAIRS
Notice: CONTACT YOUR AUTHORIZED SERVICE COMPANY
TO PERFORM MANINTENANCE AND REPAIRS.

8. OPERATION CHECK

- When the appliance is turned on for the fi rst time, the display
shows a screen with the control operations to be carried out for
proper installation of the oven before using it.
- Switch on the appliance in accordance with the following section
"Instructions for use".
- With the aid of the Instruction Booklet, explain operation,
routine maintenance, and cleaning to the user.
Attention:
- During operation, pay
attention to the hot areas of the exterior surface.
- Do not place objects on the outlets located at the top of the
appliance.

9. SERVICING

All components requiring routine maintenance may be easily
reached by opening the control panel, removing the left side
panel, or removing the rear panel.
Danger: Live voltage is present with panels removed and unit
switch on. Exercise extreme caution when working with live voltage.
NOTICE: Using any parts other than OEM original spare parts
relieves the manufacturer of all warranty and liability.

10. TROUBLESHOOTING

Malfunctions may occur even when the appliance is used correctly.
Burner fails to light
Possible causes:
- The ignition electrode is incorrectly positioned or the insulation
is damaged.
- The ignition / fl ame control device is damaged.
- The ignition electrode high tension lead is broken or shorting
to ground.
- Insuffi cient gas pressure.
- Faulty gas valve.
- Burner fan unit damaged, insuffi cient air pressure in combustion
chamber.
- Electronic control panel is damaged.
- Blown fuse, check electrical diagram.
- Oven chamber temperature probe damaged (error EPt1 - see
"Instructions for use" chapter 5).
- Cavity high limit tripped.
- High room air humidity (condensation): ventilate the kitchen.
Burner fl ame extinguishes
Possible causes:
- Power supply polarity (Phase/Neutral) inverted.
- Faulty gas valve.
- Flame detector electrode incorrectly positioned or in open circuit.
- Burner fan unit damaged (lockout situation).
- Flame control device damaged
- High room air humidity (condensation): ventilate the kitchen.
18
CONTACT YOUR AUTHORIZED
.

Advertisement

loading

  Related Manuals for Electrolux 267752