SNORKEL CONVECTION OVEN OWNER’S MANUAL Click here for Parts List County of Destination GB and IE Manual Part No: 930087-01 Manual Rev No: 1 SNORKEL Gas Convection Oven -1–
Manual Part No: 930087-01 Manual Rev No: 1 SNORKEL Gas Convection Oven -2–
IMPORTANT CUSTOMER INFORMATION Please check the gas tap and thermostat will press and release freely prior to lighting the burner as this is part of the unit’s safety mechanism. It is particularly important to check this following spillage as solidified fats and carbonised meat juices can impair the valves correct operation. IMPORTANT INFORMATION INSTALLATION ENGINEER Please ensure the customer is made fully aware of how the gas tap and thermostat operate and the importance of checking its operation daily.
Model No. Product Description Snorkel-2 Snorkel Convection Oven Manual Part No: 930087-01 Manual Rev No: 1 Flexible Rev.
INDEX Page Cover: 1 Important Information Sheet: 2 Revision: 3 Index: 4 Introduction: 4&5 General Introduction 4 Important Note 5 Specification: 6-8 Gas & Electric Dimensions/Connection 6 Line Drawing 7 Wiring Diagram 8 Installation: 9 - 11 Important Note/Positioning 9 Positioning/Connection 10 Checking & Commissioning 11 Users Instruction: 12- 23 Important Note 12 Operation 13 - 18 Cooking Guide 18 - 22 Cleaning 22 & 23 Service/Maintenance: 24 - 35 Routine Maintena
INTRODUCTION This manual contains all the required information to ensure that your new appliance is installed correctly and that you have all the information necessary to identify and order spare parts. It also contains comprehensive instructions for the user and for cleaning the appliance. To maintain peak performance, it is recommended that the appliance be regularly serviced and that when ordering spare parts, reference be made to the appropriate list quoting the Part No. and the description therein.
Introduction (cont.) Important Before installing any item please refer to the installation instructions. We recommend that our authorised service agents carry out all servicing other than routine cleaning and will accept no responsibility for work carried out by other persons. For satisfactory operation, parts of catering equipment become hot. Suitable precautions must be taken to avoid accidental burns therefore the appliance should be positioned to minimise the possibility of accidental touching.
SPECIFICATION Snorkel Convection Oven Gas Pressure Supply Pressure Adjusted Pressure Natural Gas 20 mbar (8.0” wg.) 11.25 mbar (4.5” wg.) Propane Gas 37 mbar (14.8” wg.) 37 mbar (14.0” wg.) Electrical Supply 240V, 50Hz, Single Phase Gas Connection ½” BSP Taper Male (Rp ½ “) When connecting using a flexible hose fit a ¾” BSP hose Heat Input (Nett) Natural Gas m3/h Burner x 2 Total 2.082 Injectors Propane gas Btu/h kW 33,557 9.835 67,114 19.67 Kg/h 1.688 2.
Specification (cont.
Specification (cont.
INSTALLATION Important Your attention is drawn to the latest, GAS SAFETY (INSTALLATION & USE) REGULATIONS 2000. This appliance MUST be installed by a competent person in accordance with these and any other relevant regulations. Users, too, should be aware of the regulations governing the use of gas appliances, particularly with respect to the need for regular servicing. The installation wiring of this appliance MUST comply with the latest I.E.E. Regulations.
Installation (cont.) Important Note The appliance MUST NOT be connect DIRECTLY to a flue or ventilating system, although the flue products of two or more appliances may be directed into a common outlet when building a suite of appliances (see separate instructions for suiting appliances). Ensure that the appliance is level in two places – front to rear and side to side.
Installation (cont.) Checking and Commissioning ALTHOUGH EVERY APPLIANCE IS TESTED AND SET BEFORE IT LEAVES THE FACTORY, IT IS IMPORTANT THAT THE INSTALLER RE-CHECKS CERTAIN FUNCTIONS BEFORE LEAVING THE SITE. CHECK THE GAS PRESSURE AT THE APPLIANCE THUS: The pressure test point is located on the manifold pipe behind the removable lower fascia panel, which is secured by two M5 screws. Connect a manometer (U tube) to the test point. Turn on the gas supply and light and light the oven.
USERS INSTRUCTIONS Important Note The attention of the user is drawn to the requirements of the latest GAS SAFETY (INSTALLATION & USE) REGULATIONS 2000. This appliance must be used in accordance with those, particularly so in respect of the need for regular servicing. See also the sections of this manual referring to Cleaning and General Maintenance. Safety Note This appliance is intended for professional use and shall only be used by qualified personnel.
Users Instructions (cont.) Controls Power/Ignition Switch (A) Ignition Indicator Main ON/OFF switch, connects controls to electrical supply and initiates ignition sequence. Glows whenever ignition system is in operation. Light (B) Auxiliary Fan Switch (C) Timer (D) Controls operation of fan when doors are open to permit rapid cooling of oven. Selects time intervals up to 60 minutes. A bell rings at the end of selected period. Note: Timer has no control over burners.
User Instructions (cont.) Lighting Instructions 1) Ensure that the external electrical supply is turned ON, by checking that the indicator light on 2) Turn ON the gas supply and press the power switch (A) to the ON position. This will initiate the power switch (A) is glowing. Ignition sequence. 3) When ignition sequence is complete the Ignition Indicator Light will glow.
Users Instructions (cont.) Principles of Operation (cont.) Controls: - The thermostat controls the air temperature within the oven, cutting off the burners at the required setting. The load control determines the amount of heat input into the oven and time taken by the air in the oven to return to the selected thermostat setting with a specific load.
User Instructions (cont.) Capacity and Shelf Arrangements The Snorkel oven has a maximum operating capacity of 7 shelves, which are supplied as standard. The No. 8 position ensures maximum flexibility and correct shelf spacing. The following arrangements are recommended, with the position numbers in sequence from the bottom upwards: 1) Seven (7) shelves in positions 1,2,3,4,6,7 & 8 for oven broiling, biscuits or reconstitution of frozen packs at maximum capacity.
User Instructions (cont.) General Operating Information Preheating 1) 2) 3) Light the oven, see page 14. Ensure that both doors are closed and set load control at HIGH. Set thermostat to temperature required by recipe, or established by experience. Thermostat light will glow until oven reaches set temperature (e.g. 10-15 minutes for settings between 149°C & 204°C 300°F & 400°F).
User Instructions (cont.) Load Control Settings Dial Setting % of Full Input High 100 High 75 High 67 Medium 58 Medium 47 Medium 36 Low 23 Off 0 Common Convection Problems (Causes & Correction) PROBLEM CAUSE REMEDY Uneven browning, or Load control set too high or Reduce load control setting or overcooking at edges of pans. too many shelves used. number of shelves. Pulling to edge of pan or Oven not level or sheet pans Have oven levelled. Separate spilling. warped.
User Instructions (cont.) Cooking Guide Appliance capacity and performance depends upon shelf arrangement and type of products being cooked. To obtain best results, follow recommendations given on page 16. The adjustable load control switch operates in conjunction with the thermostat to provide higher heat input when required. For example, frozen foods require a very high heat input, particularly when oven is fully loaded, and for this type of operation the load control should be set to HIGH.
User Instructions (cont.) Cooking Guide (cont.) Oven Broiling or Frying Product °C °F 204-232 400-450 Time (Approximately HAMBURGER PATTIES Eight (8) - 0.5 kg (1 lb.) 4 – 5 minutes Medium – Well Done 2 – 3 minutes Six (6) - 0.5 kg (1 lb.) / 5 – 8 minutes Four (4) - 0.5 kg (1 lb.) 7 – 10 minutes FISH FINGERS – Frozen Breaded 28 g (1 oz) 177-204 350-400 6 – 10 minutes 71-85 g (2 ½-3 oz) 177-191 350-375 6 – 15 minutes Fried – 0.9-1.1 kg (2–2 ½ lbs.
User Instructions (cont.) Cooking Guide (cont.) Miscellaneous Products Product Time Approximately °C °F 120 count per 23kg (50 lbs.) 204-232 400-450 20 – 25 minutes 100 count per 23kg (50 lbs.) 204-232 400-450 25 – 40 minutes 80 count per 23kg (50 lbs.
User Instructions (cont.) Cooking Guide (cont.) Special Procedures for Baking Product Time Approximately °C °F Rolls – 28g (1 oz) 177-204 350-400 5 – 10 minutes Rolls – 43-71g (1 ½-2 ½ oz) 177-204 350-400 8 – 15 minutes Loaf Bread – 0.5kg (1 lb.
User Instructions (cont.) Cleaning the Equipment (cont.) It will be found that it takes less time and effort if appliances are cleaned every day, particularly while they are still warm and before grease and spillage are burnt on. PROPRIETARY OVEN CLEANER MUST BE USED WITH CARE. THEY ARE HIGHLY CORROSIVE AND MAY CAUSE DAMAGE TO SURFACES AND COMPONENTS. The oven shelves can be removed for cleaning.
User Instructions (cont.) General Maintenance and Care (cont.) WE RECOMMEND THAT ALL EQUIPMENT IS SERVICED AT LEAST ONCE A YEAR, BUT MAY BE AS FREQUENT AS 6 MONTHS OR LESS IF THE GAS TAPS/THEROMOSTAT AND GAS CONTROLS DO NT OPERATE FREELY. ALL WORK MUST BE CARRIED OUT BY A QUALIFIED SERVICE ENGINEER. SERVICE INTERVALS CAN BE AFFECTED BY SPILLAGE AND SHOULD BE ASSESSED EACH TIME THE EQUIPMENT HAS BEEN USED.
SERVICE AND MAINTENANCE Maintenance MUST only be carried out by a competent person. Ensure that the gas and electricity supplies to the appliance have been turned OFF before dismantling any components. Routine Maintenance Procedure 1) Carry out the lighting procedure and check that the ignition and burner flames are satisfactory. 2) Check that the gas pressure at the pressure test point is as stated on the Data Plate:Natural Gas 11.25 mbar ( 4.5” w.g.) Propane Gas 37 mbar (14.0” w.g.
Service and Maintenance (cont.) Fault Finding Mains on Indicator Lamp Not Glowing Check the 10amp circuit breaker to see if it has tripped - before resetting look for the cause. Oven Switched On, Pilot Will Not Light and No Spark At Electrodes Check the Auxiliary Fan Switch position. Check the fan rotation and direction. Should be clockwise viewed from the front of the oven. Check that the pilot solenoid valve is operating and that gas is flowing to the pilots.
Service and Maintenance (cont.) ENSURE THAT THE GAS/ELECTRICITY SUPPLIES TO THE APPLIANCE HAVE BEEN TURNED OFF, BEFORE REMOVING OR DISMANTLING ANY CONTROLS. Removing the Thermostat. (Section 1) 1) Remove the top cover from the control panel by undoing the twelve fixing screws. Fig. 1 2) Slacken grub screw and pull off the control knob (A). 3) Disconnect the wiring (B), noting their positions. 4) Remove the two screws (C) and withdraw thermostat body (D) from the control panel.
Service and Maintenance (cont.) Removing the Load Control. (Section 2) 1) Remove the top cover from the control panel by undoing the twelve fixing screws. Fig. 3 2) Slacken grub screw and pull off the control knob (A). 3) Disconnect the wiring (B), noting their positions. 4) Remove locknut (C) and withdraw load control (D) from the rear of the control panel. 5) To renew warning light (E), disconnect wiring (F), noting their positions.
Service and Maintenance (cont.) Rocker Switches. (Section 4) 1) Remove the top cover from the control panel by undoing the twelve fixing screws. Fig. 5 2) Disconnect the wiring (A), noting their positions. 3) Press in locking lugs at each end of the rocker switch (B) and pull switch through front of control panel. 4) Replace by reversing the above procedure. Removing the Circuit Breaker. (Section 6) 1) Remove the top cover from the control panel by undoing the twelve fixing screws. Fig.
Service and Maintenance (cont.) Removing the Fan & Motor. (Section 8) Note:- It is recommended that, every three months, oven fan be removed, cleaned and refitted by a qualified service engineer, to prevent excessive carbon build-up which can impair performance. At the same time it is advisable to remove oven linings and clear any carbon build-up behind them. 1) Remove all the oven furniture. Fig. 8 2) Remove two screws (A) and withdraw flue duct (B).
Service and Maintenance (cont.) Removing the Oven Doors. (Section 9) 1) Open both oven doors and remove top capping piece (secured by two screws). Note: - Removal of both doors is identical except for door Micro-switch cam/bush attached to top hinge pin of right-hand door. Fig. 11 2) Remove two screws (A) and nuts (B), with spring and plain washers. 3) Slide top hinge bush (C) out of slot in top channel (D) and lift bottom hinge pin out of bush (E) in bottom channel (F).
Service and Maintenance (cont.) Removing the Outer Side Panels. (Section 10) 1) Disconnect oven from gas supply, and pull the oven from wall and remove outer back panel 2) Remove doors as described in Section 9, and remove bottom front panel and bottom capping (secured by sixteen screws). piece. Fig.
Service and Maintenance (cont.) Removing the Full Sequence Control. (Section 11) 1) Remove the sixteen screws securing the outer back panel to the oven. Fig. 15 2) Remove the connecting plug (A) by lifting up. 3) Remove the four fixing screws (B), and remove control (C). Removing the Relay. (Section 12) 1) Remove the sixteen screws securing the outer back panel to the oven. 2) Remove the electric box cover by undoing the four fixing screws. Fig.
Service and Maintenance (cont.) Removing the Burner. (Section 14) 1) Remove the bottom front panel (secured by two fixing screws). Fig. 18 2) Lift burner (A) clear of locating peg at rear and push burner towards rear until clear of injector 3) Replace by reversing the above procedure. (B). Removing the Pilot Assembly. (Section 15) 1) Remove the bottom front panel (secured by two fixing screws). Fig. 19 2) Disconnect pilot pipe (A). 3) Disconnect electrode leads (C), noting their positions.
Service and Maintenance (cont.) Removing the Double Solenoid Valve. (Section 17) 1) Remove the sixteen screws securing the outer back panel to the oven. 2) Remove the bottom front panel (secured by two fixing screws). Fig. 21 3) Unplug the coils (A), noting their positions, from the solenoid valve (B) by removing the fixing screws (C). 4) Disconnect the burner supply pipes (D) at the tee piece (E) and the pilot pipe at coupling (F).
Service and Maintenance (cont.) To Convert NG Appliances to LP Gas. (Section 18) 1. Remove the sixteen screws securing the outer back panel to the oven. 2. Remove the bottom front panel (secured by two fixing screws). 3. Remove the burner as described in Section 14 to gain access to the burner injectors. 4. Remove the burner injectors and fit replacement LP version stamped 1.70 (921374-09). 5. Remove the pilot assembly as described in Section 15 and remove the pilot injector tee. 6.
SPARE PARTS LIST- Fabricated Panels Fig. 22 Item Number Part No.
SPARE PARTS LIST- Fabricated Panels (cont.) Fig. 22 Item Number Part No.
SPARE PARTS LIST- Fabricated Panels (cont.) Fig.
SPARE PARTS LIST- Cladding & Finish Panels Fig. 23 Item Number Part No.
SPARE PARTS LIST- Cladding & Finish Panels (cont.) Fig. 23 Item No. Part No.
SPARE PARTS LIST- Cladding & Finish Panels (cont.) Fig.
SPARE PARTS LIST- Oven Furniture Fig. 24 Item No Part No.
SPARE PARTS LIST- Gassing Assembly Fig. 25 Item No Part No.
SPARE PARTS LIST- Gassing Assembly (cont.) Fig.
SPARE PARTS LIST- Electric Assembly Fig. 26 Item No. Part No.
SPARE PARTS LIST-(cont.) Item No. Part No.
SPARE PARTS LIST- Electric Assembly (cont.) Fig.
VISCOUNT CATERING LIMITED WARRANTY COVER The Company offer twelve months warranty with each new piece of equipment subject to our normal conditions of sale and will undertake responsibility for warranty subject to the additional following conditions. Notice of the defect/damage is given within 48 hours of breakdown or in the case of damage four days from the date of despatch and the manufacturer given adequate opportunity to examine the goods in order that appropriate action can be taken.
