Thetford S-HB14000Z Operating instructions

PCC 1271Z
–
Issue 3
BUILD-IN
COOKING HOB
MODELS: S~HB14000Z
S~HB14300Z S~HB14500Z
FOR USE WITH PROPANE GAS
FOR USE IN AUSTRALIA
THETFORD AUSTRALIA PTY LTD
41 LARA WAY CAMPBELLFIELD VIC
TEL: [phone] FAX: [phone]
USER AND INSTALLATION INSTRUCTIONS
WARNING
•
•
•
This appliance must be installed by an authorised person.
Only use this appliance in a well ventilated area.
Read the instructions before use.

2 2

CONTROL POSITIONS
FIG. 1 OFF FULL RATE LOW RATE
MINIMUM ALLOWABLE DISTANCE TO COMBUSTIBLE MATERIAL
FIG. 2
OPTIONAL BATTERY POWERED SPARK IGNITION–SERIESS~HB14300
FIG. 3
3

4

INTRODUCTION
In your own interest of safety, gas appliances should be installed by competent persons.
Failure to install the appliance correctly could invalidate any warranty or liability claims.
This appliance shall be installed in accordance with the manufacturer’s installation
instructions, local gas fitting regulations, municipal building codes, AG5601 and any other
relevant statutory regulations.
Data Label
The data label is located on the underside of the control panel area towards the front of the
appliance. A duplicate data label is supplied to adhere to an accessible area next to the
appliance. This appliance is designed for use with Propane Gas and should not be
converted for use with any other gas.
Provision of Ventilation
The use of a gas cooking appliance results in a production of heat and moisture in a room
in which it is installed. Ensure that the kitchen is well ventilated and in accordance with
AG5601 Installation Code. In general, the appliance should have adequate ventilation for
complete combustion of gas, proper flueing and to maintain temperature of immediate
surroundings within safe limits.
Location
Chose a location free of draughts and open doors and clear of combustible materials or
other fire hazards. The location should ensure convenience of operation and service. Any
adjoining wall surface situated within 200mm from the edge of any hob burner must have a
suitable non-combustible material for a height of 150mm for the entire length of the
hotplate.
Any combustible construction above the hotplate must be at least 600mm above the top of
the burner and no construction shall be within 450mm above the top of the burner.
5

Using the Hob Burners
OPERATION
Each burner is controlled individually and is monitored by a flame failure sensing device.
The respective knob positions are shown in Fig. 1.
1. Ensure gas supply is connected and turned on.
2. To light: Push in the control knob and turn anti-clockwise to full rate – large flame on
control knob ( ) Fig. 1.
3. Continue holding the knob depressed whilst holding a lighted match or taper to the
burner. For models fitted with Spark Ignition the procedure is similar except that the
burner can be ignited by depressing the ignition button located on the fascia.
4. After the burner is lit continue depressing the knob for approximately 10 - 15
seconds before release.
5. If burner has not lit within 15 seconds, release knob and wait at least 1 minute
before repeating operations (2) to (4).
6. If required the knob can be turned further anti-clockwise to the simmer position.
7. To turn off, rotate the control knob anti-clockwise until the circle on the knob is
aligned with the dot on the fascia panel.
Each burner will support pans from 10 to 20cm. On Model S~HB14000Z the rear left
burner on right hand control units OR front right burner on left hand control units will
accept 22cm pans. On Models S~HB14300Z & S~HB14500Z the single centre burner will
accept 22cm pans. Overloading the appliance will reduced performance
Leaks
If a smell of gas becomes apparent, the supply should be turned off at the cylinder
IMMEDIATELY.
•Extinguish naked lights including cigarettes and pipes.
•Do not operate electrical switches.
•Open all doors and windows to disperse any gas escape.
•Propane gas is heavier than air, any gas escaping will therefore collect at low level.
The strong unpleasant smell of gas will enable the general area of the leak to be
detected. Check that the gas is not escaping from an unlit appliance.
•Never check for leaks with a naked flame, leak investigation should be carried out
using a leak detector spray.
•When cooking keep children away from the vicinity. Turn pan handles
inwards so they cannot be caught accidentally.
•Never leave fat or oil unattended on the hotplate.
•When finished, check that all controls are in the off position.
•This appliance must not in any circumstances be used as a space heater.
•If fitted in a touring caravan or motor van, all burners should be extinguished
when the vehicle in which the appliance is installed is moving. It is preferred
that the cylinder valve to the appliance be turned off.
6

INSTALLATION
A cut-out should be prepared in the worktop, and the appliance fixed in position through
the side fixing holes - see appliance installation diagram.
A direct distance of 200mm must exist between the edge of the appliance burners and any
combustible material, unless protected by a layer of non-combustible material. All
combustible materials such as curtains and shelves must be kept well clear of the
appliance. Any fitments such as a cupboard above the unit must have a minimum
clearance of 500mm between the fitment and the top of the Panrest.
The underside of the appliance must be shielded. It is recommended that the shield is
fabricated from non-combustible material, but if the enclosure is manufactured from
combustible material, then a minimum air space of 100mm must exist between the
material and the lowest part of the appliance. THIS AIR SPACE MUST BE WELL
VENTILATED. Any cabinets beneath the hob must be sealed to prevent the ingress of
unburnt gas.
Connection
A ¼ BSP female connection is provided on the underside of the appliance. It is
recommended that the appliance be connected by copper tubing; a rubber or hose
connection must not be used. After connection the appliance must be tested for
soundness. This appliance is suitable for use on :-
Propane Gas Only 2.75 Kpa.
It is important that the regulator should be set to the correct pressure for the type of gas
being used. Excessive pressure must not be permitted.
If the flame on hob burners has a tendency to lift, it is probable that the line pressure is too
great. Should there be excessive yellow tips (resulting in sooting) then it is probable that
the line pressure is too low and, in either case, the burners should not be used until the
line pressure has been checked.
Depending on model type the following injectors are used:-
STANDARD BURNER = 0.62mm 5.4 MJ/h
SEMI RAPID BURNER = 0.67mm 5.9MJ/h
RAPID BURNER = 0.81mm 9.0MJ/h
The burners on this appliance have fixed aeration and no adjustment is necessary.
When satisfied with the appliance, please instruct the user on the correct method of
operation. If the appliance fails to operate correctly after all checks have been made, refer
to the authorised service provider in your area.
•After installation the appliance MUST be tested for soundness
•Test ALL burners on high and low flame for flame stability.
•The gas supply input pressure MUST not rise or fall significantly
from nominal when ALL appliances connected to the supply are
operated simultaneously.
•If NOT installed to the manufacturers instructions detailed herein, we
the manufacturer cannot be held responsible for any problems that
occur, or poor performance that is perceived/witnessed.
7

MAINTENANCE & SERVICING
This appliance needs little maintenance other than cleaning. All parts should be cleaned
using warm soapy water.
Do not use abrasive cleaners, steel wool or cleansing powders. When cleaning the burner
ring it is essential to ensure that the holes do not become blocked.
The control knobs are a push fit and can be removed for cleaning. They are
interchangeable without affecting the sense of operation.
On units fitted with battery spark ignition, when the time taken for spark generation
becomes extended, the battery should be renewed with a suitable make of long life
battery.
THIS APPLIANCE MUST NOT BE MODIFIED OR ADJUSTED UNLESS AUTHORISED
AND CARRIED OUT BY THE MANUFACTURER OR HIS REPRESENTATIVE.
NO PARTS OTHER THAN THOSE SUPPLIED BY THE MANUFACTURER SHOULD BE
USED ON THIS APPLIANCE.
Who to Contact
For service, please contact your authorised local Service Agent giving full details of the
model, serial number and date of purchase.
Manufactured by:
THETFORD Limited.
Unit 19 Oakham Drive,
Parkwood Industrial Estate,
Rutland Road,
Sheffield. S3 9QX. England.
DO NOT store or use gasoline or other flammable vapours, liquids or items in the
vicinity of this or any other appliance.
DO NOT spray aerosols in the vicinity of this appliance while it is in operation.
Where this appliance is installed in marine craft or in caravans, it shall not be
used as a space heater.
NEVER check for leaks with an open flame
8

MAINTENANCE & SERVICING
Injector Sizes & Consumption Per Burner
Model S~HB14000Z Burner Injector orifice Consumption
Front LH 0.62 or 0.67 mm 5.4 or 5.9 MJ/hr
Front RH 0.62 or 0.67 mm 5.4 or 5.9 MJ/hr
Rear LH 0.62 or 0.67 mm 5.4 or 5.9 MJ/hr
Rear RH 0.62 or 0.67 mm 5.4 or 5.9 MJ/hr
Model S~HB14300Z Burner Injector orifice Consumption
Front LH 0.62 or 0.67 mm 5.4 or 5.9 MJ/hr
Rear LH 0.62 or 0.67 mm 5.4 or 5.9 MJ/hr
Centre RH 0.62 or 0.67 mm 5.4 or 5.9 MJ/hr
Model S~HB14500Z Burner Injector orifice Consumption
Front LH 0.62 or 0.67 mm 5.4 or 5.9 MJ/hr
Rear LH 0.62 or 0.67 mm 5.4 or 5.9 MJ/hr
Centre RH 0.81 mm 9.0 MJ/hr
A pressure test point is fitted to the gas manifold located below the control panel. The
pressure is measured with the front left burner on high flame and with an inlet pressure of
2.75 kPa (Propane).
Service Instructions
ALL SERVICING MUST BE CARRIED OUT BY AN AUTHORISED PERSON
1. Hob Burner Gas valve removal/replacement
•Shut off gas supply and disconnect gas supply pipe from the unit.
•Remove the hob from the bench top.
•Remove the appropriate control knob by pulling up.
•Unscrew the gas valve retaining nut.
•From underside of hob, unscrew appropriate thermocouple nut at the gas valve.
•Unscrew the appropriate gas supply pipe nut.
•Remove the appropriate gas valve clamp by unscrewing the two screws.
•Remove the gas valve.
•Replace the tap and gasket. Refit using reverse procedure.
2. Hob Burner Injector removal/replacement
•Remove the pan support by pulling up to release it from the plastic clips.
•Remove the appropriate burner cap and skirt.
•With a 7mm A/F socket, unscrew injector from the bottom of the burner mixing tube.
•Replace/refit using the reverse procedure.
3. Thermocouple removal/replacement
•Shut off gas supply and disconnect gas supply pipe from the unit.
•Remove the hob from the bench top.
•Remove the spring clip retaining the thermocouple at the burner.
•From the underside of the hob, unscrew the appropriate thermocouple nut at the
gas valve.
•Remove the thermocouple.
•Replace/refit using reverse procedure.
9