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GB 4.2 WATER PRESSURE ADJUSTMENT (ONLY FOR MODELS 6 GN 1/1 C2-C3 AND 10 GN 1/1 C2) For correct operation of these appliances, in addition to the requirements stipulated in point 4.1 above, the water pressure must also be adjusted using the relative internal pressure regulator. To adjust the water pressure, proceed as follows (Fig. "11"): 1) Remove the LH side panel from the oven; 2) Start a steam cooking cycle (see "Instructions for use"); 3) Undo knurled cap "A"; 4) Using a flat-blade screwdriver, turn the screw underneath until the read-out on pressure gauge "B" is 120 kPa (1.2 bar); 5) Refit cap "A" and remount the side panel. 11 4.3 WATER DRAIN SYSTEM (Fig. 12a-12b) Connect drain fitting “C” to a drain pipe of the same diameter which is between 0.5 and 3 metres in length and is resistant to temperatures of at least 100°C. The drain pipe must be siphoned (height 80 mm) to an open drain “O” (“Air- Break”) or floor grating (see Fig. 12b) in order to prevent any back-flow from the sewage system from reaching the piping inside the oven or oven chamber. Check the hoses and elbows on metal pipes for kinks or pinching along the entire drain line and make sure the drain line has a minimum gradient of 5° to prevent water from collecting inside the system. Important: The drain system must be installed so that any vapours from the open drain do not enter the aeration vents under the appliance. Note for model 6 GN 1/1 C4: This model is fitted with two separate drain fittings (see installation diagram). These fittings must be connected to each other externally on the appliance before flowing into a single drain. 42 12a 12b
5. SAFETY DEVICES The appliance is fitted with the following safety devices: 6.1 Safety fuses (see electrical circuit diagram) positioned behind the control panel. To replace, loosen the retainer cap, and replace the damaged component with one of the same capacity; this value is specified on the relative data plate. 6.5 Chamber safety thermostat, with manual reset located behind control panel; when this device trips, convection heating power is shut off. Reset operations must be performed by specialised technical personnel after eliminating the cause of the fault. 6.6 Thermal cutout inside fan motor, which trips in the event of overheating on fuse F1 (see electrical circuit diagram) and shuts down appliance operation. Reset operations must be performed by specialised technical personnel after eliminating the cause of the fault and fuse F1 must be replaced with a version of the same capacity. To replace, open the control panel, loosen the retainer cap, and replace the damaged component with one of the same capacity; this value is specified on the relative data plate. 6. OPERATION CHECK - Switch on the appliance in accordance with the instructions for use. - Using the instructions manual, explain the operation and maintenance instructions to the user. Important: - Exercise due care since certain areas of the oven exterior get hot during use. - Do not cover the exhausts on top of the appliance. 43 7. SERVICING All components requiring routine maintenance may be easily reached by opening the control panel or removing the LH side panel and rear panel. 8. TROUBLESHOOTING Even during the regular running of the appliance anomalies or failures can occur. The oven chamber heating does not activate or is inefficient. Possible cause: - The oven chamber temperature limit switch has intervened - The heating elements are damaged - Check the contactor coil relative to the damaged component - Damaged thermostat probe showing error “EPt1”. - The controller is damaged - Fuse “F2” has intervened, see wiring diagram. Steam production does not start up or is inefficient. Possible cause: - The heating elements are damaged - Check the contactor coil relative to the damaged component - The controller is damaged - Fuse “F2” has intervened. - No water supply from the mains. - Boiler drainage outlet closing device damaged - Water inlet solenoid valves are damaged (do not open) The oven chamber temperature reading is erratic Possible cause: - The electronic controller is damaged - The thermostat probe is damaged, dirty or interrupted see error “EPt1”. The oven switches off Possible cause: - The fuse “F1” has intervened due to motor overheating and the oven chamber lighting switches off - The fuse “F2” has intervened due to damage to the auxiliary components. GB
Page 1 and 2: H - FORNI CONVEZIONE/VAPORE ELETTRI
Page 3 and 4: IT GB DE FR BE ES NL SE DK PT GR BE
Page 5: Mod.: 20 GN 1/1 IT I - Entrata cavo
Page 8 and 9: GB I. MAIN FEATURES 1. DESCRIPTION
Page 10 and 11: GB TABLE 1: TECHNICAL DATA FIGURES
Page 12 and 13: GB II. INSTRUCTIONS FOR INSTALLATIO
Page 16 and 17: GB 9. LAYOUT OF MAIN COMPONENTS (Al
Page 18 and 19: GB 3. DESCRIPTION OF CONTROL PANEL
Page 20 and 21: GB 3.6. STEAM BOILER CONTROLS Note:
Page 22 and 23: GB 4.4. START OF COOKING CYCLE - Ma
Page 24 and 25: GB 5. FUNCTIONAL LEVEL C4 5.1. TURN
Page 26 and 27: GB 4) Turn temperature probe contro
Page 28 and 29: GB 6.7. START OF COOKING CYCLE - Ma
Page 30 and 31: GB 6.14. AUTOMATIC MODE A U T O aut
Page 32 and 33: GB 7. ALL MODELS 7.1. ALARM AND DIA
Page 34 and 35: GB Changing the oven bulb (Fig. "20
Page 36 and 37: Livello 3 Level 3 Ebene 3 Niveau 3
Page 38 and 39: Livello 6 Level 6 Ebene 6 Niveau 6

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