Waldorf RNB8450G User manual

Installation and Operation Manual
Series
RN8450G RNL8450G RNB8450G RNLB8450G
RN8900G RNL8900G RNB8900G RNLB8900G
Gas Cooktops
(450mm Wide Hobs)
Date Purchased
Serial Number
Dealer
Service Provider
232778-9
For use in GB & IE

The reproduction or copying of any part of this manual by any means whatsoever is strictly forbidden unless authorized previously in
writing by the manufacturer.
In line with policy to continually develop and improve its products, Moffat Ltd. reserves the right to change the specifications and
design without prior notice. © Copyright Moffat Ltd. November 2014.
MANUFACTURED BY
Moffat Limited
Rolleston 7675
New Zealand
INTERNATIONAL CONTACTS
AUSTRALIA
Moffat Pty Limited
Web: www.moffat.com.au
E.Mail: [email protected]
Main Office: (tel) [phone]
(fax) [phone]
Service: (tel): 1800 622 216
Spares: (tel): 1800 337 963
Customer Service: (tel): 1800 335 315
(fax): 1800 350 281
CANADA
Serve Canada
Web: www.servecanada.com
E.Mail: [email protected]
Sales: (tel): 800 551 8795 (Toll Free)
Service: (tel): 800 263 1455 (Toll Free)
NEW ZEALAND
Moffat Limited
Web: www.moffat.co.nz
E.Mail: [email protected]
Main Office: (tel): 0800 663328
UNITED KINGDOM
Blue Seal
Web: www.blue-seal.co.uk
E.Mail: [email protected]
Sales: (tel): [phone]
(fax): [phone]
Spares: (tel): [phone]
(fax): [phone]
Service: (tel): [phone]
(fax): [phone]
UNITED STATES
Moffat
Web: www.moffat.com
Sales: (tel): 800 551 8795 (Toll Free)
(tel): [phone]
(fax): [phone]
Service: (tel): 800 858 4477 (Toll Free)
(tel): [phone]
(fax): [phone]
REST OF WORLD
Moffat Limited
Web: www.moffat.co.nz
E.Mail: [email protected]

Contents List
Waldorf Gas Cooktops
RN(L)(B)8450G Gas Cooktop 450mm wide.
RN(L)(B)8900G Gas Cooktop 900mm wide.
Introduction .............................................................................................. 2
Specification .............................................................................................. 3
Model Numbers Covered in this Specification
General
Gas Supply Requirements
Gas Connection
Dimensions ................................................................................................ 6
Installation .............................................................................................. 10
Installation Requirements
Unpacking
Location
Clearances
Assembly
Fitting Adjustable Feet / Rear Rollers to Leg Stand Units
Fitting Adjustable Feet / Rear Rollers to Cabinet and Refrigeration Bases
Gas Connection
Commissioning
Operation.................................................................................................16
Operation Guide
Description of Controls
Open Burners
Cleaning and Maintenance ......................................................................18
Before Commencing Cleaning
Open Burner Cleaning
Stainless Steel Surfaces
Fault Finding............................................................................................20
Gas Conversion and Specifications .........................................................21
Conversion Procedure
Gas Specifications
Replacement Parts ..................................................................................25

2
Introduction
GREAT CARE MUST BE TAKEN BY THE OPERATOR TO USE THE EQUIPMENT SAFELY TO GUARD IT AGAINST RISK OF
FIRE.
 THE APPLIANCE MUST NOT BE LEFT ON UNATTENDED.
 ITIS RECOMMENDED THAT AREGULAR INSPECTION IS MADE BY ACOMPETENT SERVICE PERSON TO
ENSURE CORRECT AND SAFE OPERATION OF YOUR APPLIANCE IS MAINTAINED.
 DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPOURS OR LIQUIDS IN THE VICINITY OF
THIS OR ANY OTHER APPLIANCE.
 DO NOT SPRAY AEROSOLS IN THE VICINITY OF THIS APPLIANCE WHILE IT IS IN OPERATION.
Warning
 This appliance is for professional use and is only to be used by qualified
persons.
 Only authorised service persons are to carry out installation, servicing or gas
conversion operations.
 Components having adjustments protected (e.g. paint sealed) by the
manufacturer should not be adjusted by the user / operator.
 DO NOT operate the appliance without the legs supplied fitted.
Caution
IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN CAUSE PROPERTY
DAMAGE, INJURY OR DEATH. READ THE INSTALLATION, OPERATING AND MAINTENANCE INSTRUCTIONS
THOROUGHLY BEFORE INSTALLING OR SERVICING THIS APPLIANCE.
Warning
INSTRUCTIONS TO BE FOLLOWED IN THE EVENT THE USER SMELLS GAS ARE TO BE POSTED IN APROMINENT
LOCATION. THIS INFORMATION SHALL BE OBTAINED BY CONSULTING THE LOCAL GAS SUPPLIER.
Warning
We are confident that you will be delighted with your WALDORF GAS COOKTOPS, and it will become a
most valued appliance in your commercial kitchen.
To ensure you receive the utmost benefit from your new Waldorf Gas Cooktops, there are two important
things you can do.
Firstly:
Please read the instruction book carefully and follow the directions given. The time taken will be well
spent.
Secondly:
If you are unsure of any aspect of the installation, instructions or performance of your appliance,
contact your WALDORF dealer promptly. In many cases a phone call could answer your question.
CE Only:
These instructions are only valid if the country code appears on the appliance. If the code does not
appear on the appliance, refer to the supplier of this appliance to obtain the technical instructions for
adapting the appliance to the conditions for use in that country.

3
Specifications
Model Numbers Covered in this Specification
RN[1]8450G [2]-[3] 2 Open Burners.
RN[1]8900G [2]-[3] 4 Open Burners.
NOTE:
[1]: - Model Options;
- - Standard Models.
L - Low Back Models.
B - Bold Front.
LB - Low Back and Bold Front.
[2] - Open Burner Options;
F - With Flame Failure Protection.
PF - With Pilot and Flame Failure Protection.
[3] - Base Stand Options;
B - Bench Top.
CB - Cabinet Base.
LS - Leg Stand .
RB - Refrigerated Base (RN8900G model only).
General
A heavy duty, high efficiency open burners Cooktops for modular kitchens. It is available either on
industrial adjustable feet or on robust rollers with various models of base stand available. Fitted with
either 'Individual Flame Failure' (F) or 'Pilot and Flame Failure' (PF) option for each open burner.
Easy clean stainless steel external finish.

4
Specifications
Gas Supply Requirements
- Australia
- New Zealand
- United Kingdom
Category: II2H3P (20, 37).
Flue Type: A1.
* - Measure burner operating pressure at manifold test point with two burners operating at full
setting. Operating pressure is ex-factory set, through appliance regulator and is not to be
adjusted, apart from when converting between gases, if required. (Refer to ‘Gas Conversion’
section for details).
Natural Gas LP Gas (Propane)
Input Rate (N.H.G.C.)
- each Open Burner
28 MJ/hr 28 MJ/hr
Supply Pressure 1.13 - 3.40 kPa 2.75 - 4.50 kPa
Burner Operating Pressure (*) 0.95 kPa 2.6 kPa
Gas Connection See ‘Gas Connection’ information overleaf.
Natural Gas LP Gas
Input Rate (N.H.G.C.)
- each Open Burner
28 MJ/hr 28 MJ/hr
Supply Pressure 1.13 - 3.40 kPa 2.75 - 4.50 kPa
Burner Operating Pressure (*) 0.95 kPa 2.6 kPa
Gas Connection See ‘Gas Connection’ information overleaf.
Natural Gas (G20) Propane (G31)
Heat Input (nett) Nominal 6.5 kW 6.5 kW
Reduced 1.75 kW 1.75 kW
Gas Rate (nett) Nominal 0.69 m3/hr 0.51 kg/hr
Reduced 0.19 m3/hr 0.14 kg/hr
Supply Pressure 20 mbar 30 / 37 mbar
Burner Operating Pressure (*) 9.5 mbar 26 mbar
Gas Connection See ‘Gas Connection’ information overleaf.

5
Specifications
- All Other Markets
NOTE:
 (*) Measure Burner operating pressure at manifold test point with two burners operating at
'High Flame' setting.
 NAT, LPG & Butane Only - Operating pressure is ex-factory set and is not to be adjusted,
unless when converting between gases, if required.
 (**) TOWN GAS Only - Adjust burner operating pressure using adjustable gas regulator
supplied.
 Refer to ‘Gas Conversion and Specifications' section in this manual for further details.
Gas Connection
Gas supply connection point is located at rear of appliance, approximately 130mm from right hand
side, 32mm from rear and 655mm from floor (55mm from floor for bench top – B models) and is
reached from beneath appliance. (Refer to ‘Dimensions’ section).
Connection is ¾" BSP male thread (for all other models).
Natural Gas Town Gas (**)
Input Rate (N.H.G.C.)
- each Open Burner 28 MJ/hr 28 MJ/hr
Supply Pressure 1.13 - 3.40 kPa 0.75 - 1.50 kPa
Burner Operating Pressure (*) 0.95 kPa 0.63 kPa
Gas Connection See ‘Gas Connection’ information below.
LP Gas / Butane
Input Rate (N.H.G.C.)
- each Open Burner 28 MJ/hr
Supply Pressure 2.75 - 4.50 kPa
Burner Operating Pressure (*) 2.6 kPa
Gas Connection See ‘Gas Connection’ information below.

6
Dimensions
Bench Top Models
RN[L]8450G-B
RN[L]8900G-B

7
Dimensions
Cabinet Base Models
RN[L]8450G-CB
RN[L]8900G-CB
= Rating Plate Location for
this option.
R
R

8
Dimensions
Leg Stand Models
RN[L]8450G-LS
RN[L]8900G-LS
= Rating Plate Location for
this option.
R
R

9
Dimensions
Dimensions for Refrigerated Base Models
RN8450G models - not available in Refrigerated Base option.
RN[L]8900G-RB
= Rating Plate Location
for this option.
R
R

10
Installation
Installation Requirements
NOTE:
 It is most important that this Cooktop is installed correctly and that operation is correct
before use. Installation shall comply with local gas, electrical and health and safety
requirements.
 This appliance shall be installed with sufficient ventilation to prevent the occurrence of
unacceptable concentrations of health harmful substances in the room, the appliance is
installed in.
Waldorf Cooktops are designed to provide years of satisfactory service, and correct installation is essential
to achieve the best performance, efficiency and trouble-free operation.
This appliance must be installed in accordance with National installation codes and in addition, in
accordance with relevant National / Local codes covering gas and fire safety.
AUSTRALIA: - AS5601 - Gas Installations.
NEW ZEALAND: - NZS5261 - Gas Installation.
UNITED KINGDOM: - Gas Safety (Installation & Use) Regulations 1998.
- BS6173 - Installation of Catering Appliances.
- BS5440 1 & 2 - Installation Flueing & Ventilation.
IRELAND: - IS 820 - Non - Domestic Gas Installations.
Installations must be carried out by qualified persons only. Failure to install equipment to
relevant codes and manufacturer’s specifications shown in this section will void the warranty.
Components having adjustments protected (e.g. paint sealed) by manufacturer are only
to be adjusted by an authorised service agent. They are not to be adjusted by the installation
person.
Unpacking
 Remove all packaging and transit protection from appliance including all protective plastic coating
from exterior stainless steel panels.
 Check equipment and parts for damage. Report any damage immediately to carrier and distributor.
 Report any deficiencies to distributor who supplied the appliance.
 Check available gas supply is correct to as shown on Rating Plate attached to underside of R/ H side,
front Cooktop lower trim, for Bench, Cabinet Base and Leg Stand Models. For Refrigerated Base
Models, Rating Plate is located inside right hand front panel and can be viewed through upper grille.
Location
1. Installation must allow for a sufficient flow of fresh air for combustion air supply.
2. Installation must include adequate ventilation means, to prevent dangerous build up of combustion
products.
3. Never directly connect a ventilation system to appliance flue outlet.
4. Position appliance in its approximate working position.
5. All air for burner combustion is supplied from beneath appliance. Legs must always be fitted and no
obstructions placed underneath or around base of appliance, as obstructions will cause incorrect
operation and / or failure of appliance.
NOTE: Do not obstruct or block appliances flue. Never directly connect a ventilation system to
appliance flue outlet.
Combustion Air Requirements:
RN8450G RN8900G
Natural Gas (G20) 12 m3/hr 24 m3/hr
LPG/Propane (G31) 13 m3/hr 25 m3/hr

11
Installation
Clearances
NOTE: Only non-combustible materials can be used in close proximity to this appliance.
* Side clearances can be 50mm when adjacent surface is at least 100mm below cooking surface.
Assembly
NOTE:
 All Models are delivered completely assembled. No further assembly is required, with
exception of all Leg Stand Models (RN8450G-LS or RN8900G-LS), these will require
assembly. Refer to 'Leg Stand Models Only' information below for assembly instructions.
 The appliance rear leg housings can be fitted with:-
Adjustable feet to assist with levelling of appliance on uneven floors. This should be
carried out on completion of gas connection. Refer to 'Gas Connection Section'.
Rear rollers to enable appliance to be easily moved for positioning and cleaning
purposes.
Optional Accessories (Refer to Replacement Parts List)
 Plinth Kit. For installation details, refer to instructions supplied with each kit.
Bench Models
1. Check all feet are fitted.
2. Adjust four feet to make Cooktop steady and level.
Fitting of Adjustable Feet / Rear Rollers to Leg Stand Units.
1. Remove all pot stands, trivets and open burners.
2. Lower cooktop onto its rear face.
3. Attach four cooktop legs to leg mount points on underside of cooktop unit.
4. Secure each leg hand tight.
5. Align 4 round holes in corners of base tray with 4 cooktop legs already fitted. (Ensure base tray is
orientated with sloping edge of base tray facing front of appliance).
6. Slot base tray onto 4 cooktop legs and push fully home.
7. Secure base tray to cooktop legs by screwing two front adjustable feet supplied, into base of front
cooktop legs. Secure each adjustable foot, hand tight.
8. The two rear leg housings can be fitted with either adjustable legs or rollers. (See Figure 1).
Combustible Surface Non Combustible Surface
Left / Right Hand Side 250mm (*) 0mm
Rear; - Standard Models 50mm 0mm
- Low Back Models 100mm 0mm
TO PREVENT EQUIPMENT DAMAGE AND RISK OF INJURY, REMOVE ALL LOOSE ITEMS FROM THE TOP OF THE
COOKTOP PRIOR TO FITTING THE LEG STAND.
Warning

12
Installation
Rear Adjustable Feet, Fitting:-
a. Secure rear of base tray to rear cooktop
legs by screwing two adjustable feet
supplied, into base of rear cooktop legs.
b. Secure each adjustable foot, hand tight.
Rear Rollers, Fitting:-
a. Fit rear leg securing bolts up through
centre of rear leg housings to secure rear
of base tray to rear cooktop legs and
tighten up bolts using a 24mm socket.
b. Fit rear rollers to rear leg supports.
c. Secure rear rollers to rear leg supports
using locating screw supplied.
d. Tighten screw using a 10mm spanner.
9. Lift cooktop back onto its legs / rollers and
refit all open burners, trivets and pot stands.
10. Adjust the adjustable feet to level appliance.
Fig 1
Cooktop
Cooktop
Legs
Base Tray
Leg Mount
Points
Adjustable
Foot Rear Roller
Rear Leg
Securing Bolt
Roller
Locating Bolt
Rear Leg
Housing

13
Installation
Fitting Adjustable Feet / Rear Rollers to Cabinet and Refrigeration Bases.
Rear Adjustable Feet, Fitting:-
1. Raise appliance from floor by approximately
75mm using suitable lifting equipment (i.e.
Palletiser / Forklift) to allow rear rollers to be
removed.
2. Unscrew and remove securing bolt securing
rear roller to rear leg housing.
3. Rear roller will drop freely from rear leg
housing.
4. Remove second rear roller.
5. Screw rear adjustable feet into rear leg
housings and tighten hand tight.
6. Lower appliance back to floor and adjust
adjustable feet to level appliance.
Rear Rollers, Fitting:-
1. Raise appliance from floor by approximately
75mm using suitable lifting equipment (i.e.
Palletiser / Forklift) to allow rear adjustable feet
to be removed.
2. Unscrew and remove both rear adjustable feet
from rear leg housings.
3. Fit rear roller to rear leg housing and align
screw hole in side of rear leg housing with
threaded hole in rear roller.
4. Secure rear roller to leg support with bolt
supplied and tighten bolt using a 10mm A/F
spanner.
5. Fit second roller and tighten.
6. Lower appliance back to floor and adjust front
adjustable feet to level appliance.
Fig 2
Cabinet /
Refrigeration
Base
Adjustable
Foot Rear Roller
Roller
Locating Bolt
Rear Leg
Housing

14
Installation
Gas Connection
NOTE: ALL GAS FITTING MUST ONLY BE CARRIED OUT BY A QUALIFIED PERSON.
1. Waldorf Cooktops do not require electrical connection, as they function totally on gas supply.
2. It is essential that gas supply is correct for Cooktop to be installed and that adequate supply
pressure and volume are available. The following checks should be made before installation:-
a. Gas Type the appliance has been supplied for is shown on a coloured sticker located above gas
entry point and on rating plate. Check this is correct for gas supply appliance is being installed
for. Gas conversion procedure is detailed in this manual.
b. Supply Pressure required for this appliance is shown in ‘Specifications’ section of this manual.
Check gas supply to ensure that adequate supply pressure exists.
c. Input Rate of this appliance is stated on Rating Plate and in ‘Specifications’ section of this
manual. Input rate should be checked against available gas supply line capacity. Particular
note should be taken if appliance is being added to an existing installation.
NOTE: It is important that adequately sized piping runs directly to connection joint on appliance
with as few tees and elbows as possible, to give maximum supply volume.
3. Fit gas regulator supplied, into gas supply line as close to appliance as possible.
NOTE: The gas pressure regulator provided with this appliance is convertible between Natural Gas
and LPG as per ‘Gas Conversion Section’ in this manual.
Ensure regulator is converted to correct gas type that appliance will operate on.
Regulator outlet pressure is fixed ex-factory for gas type that regulator is converted to and
is NOT to be adjusted.
For all models, connection to appliance is ¾" BSP male thread.
(Refer to ‘Specifications’ section for gas supply location dimensions).
All models - gas regulator supplied has ¾" BSP F/F connections.
NOTE: A Manual Isolation Valve must be fitted to individual appliance supply line.
4. Correctly locate appliance into its final operating position and using a spirit level, adjust legs so that
appliance is level and at correct height.
5. Connect gas supply to appliance. A suitable joining compound which resists breakdown action of
LPG must be used on every gas line connection, unless compression fittings are used.
6. Check all gas connections for leakages using soapy water or other gas detecting equipment.
7. Check gas operating pressure is as shown in ‘Specifications’ section.
NOTE: The operating pressure to be measured at manifold
test point and with 2 burners operating at ‘High Flame’
setting.
8. Verify operating pressure remains correct.
NOTE: This appliance is fitted with adjustable feet to enable appliance to be positioned securely
and level. This should be carried out on completion of gas connection.
Manifold
Test Point Fig 3
DONOT USE ANAKED FLAME TO CHECK FOR GAS LEAKAGES.
Warning

15
Installation
Commissioning
1. Before leaving a new installation;
a. Check the following functions in accordance with operating instructions specified in ‘Operation’
section of this manual.
 Light the Open Burners. (F - Flame Failure Option).
 Light the Open Burners. (PF - Pilot and Flame Failure Option).
 Check the Low Fire Burner Operation.
b. Ensure operator has been instructed in areas of correct lighting, operation, and shutdown
procedure for appliance.
2. This manual must be kept by owner for future reference and a record of
Date of Purchase, Date
of Installation
and Serial Number of Appliance recorded and kept with this manual. (These
details can be found on Rating Plate;
For Cabinet Base and Leg Stand Models, Rating Plate is attached to underside of right hand
side, front Cooktop lower trim.
For the Refrigerated Base Model, Rating Plate is located inside right hand front panel and can be
viewed through upper grille. Refer to ‘Gas Connection’ section and ‘Dimensions’ section.
NOTE: If it is not possible to get appliance to operate correctly, shut ‘Off’ gas supply and contact
supplier of this appliance.
For Refrigeration Cabinet Installation details refer to Refrigeration Cabinet Installation and
Operation Manual supplied with appliance.

16
Operation
Operation Guide
1. Waldorf appliances have been designed to provide simplicity of operation and 100% safety
protection.
2. Improper operation is almost impossible, however bad operation practices can reduce the life of the
appliance and produce a poor quality product. To use this appliance correctly please read the
following sections carefully:-
 Lighting the Open Burners (F Flame Failure Option).
 Lighting the Open Burners (PF - Option).
Description of Controls
NOTE: The open burner control knobs with 'Flame Failure Option Only' will only have the ‘Off’,
‘Low Flame’ and ‘High Flame’ positions.
Open Burner 'F' Option
Only
OFF Position
HIGH Flame
LOW Flame
Rear Burner
Front Burner
(Indicators located above
the Gas Control Knobs).
Fig 4
 This appliance is for professional use and is only to be used by qualified
persons.
 Only authorised service persons are to carry out installation, servicing or gas
conversion operations.
 Components having adjustments protected (e.g. paint sealed) by the
manufacturer should not be adjusted by the user / operator.
Caution

17
Operation
Open Burners ('F' - Flame Failure Option)
Lighting the Open Burners
Flame Failure Protection is incorporated for each burner by way of a thermo-electric system which
will shut off gas supply to that burner in the event that burner goes out, so that un-burnt gas is not
expelled.
a. Select burner required, depress and turn the gas control knob anti-clockwise to ‘HIGH’ position.
b. Hold gas control knob depressed and manually light main burner.
c. Release gas control knob after approximately 10-20 seconds after lighting burner.
d. Burner should stay alight - if not, repeat Steps (a. to (c. above.
e. To adjust the temperature required, depress and rotate gas control knob between ‘HIGH’ and
‘LOW’ positions.
Turning 'OFF' the Open Burners
a. When main burner is not required, depress and turn gas control knob clockwise back to ‘OFF’
position. 'MAIN' burner will extinguish.
Open Burners ('PF' - Pilot and Flame Failure Option)
Lighting the Open Burners
These hobs are fitted with individual standing pilots for each open burner which allows main burners
to be turned 'ON' - 'OFF' without having to manually re-light burner each time that it is turned 'ON',
as burner will automatically light itself off the pilot burner.
Flame Failure Protection is incorporated for each burner by way of a thermo-electric system which
will shut off gas supply to that burner in the event that burner goes out, so that un-burnt gas is not
expelled.
a. Select burner required, depress and turn the gas control knob anti-clockwise to ‘PILOT’ position.
b. Hold gas control knob depressed and manually light pilot burner.
c. Release gas control knob after approximately 10-20 seconds after lighting pilot burner.
d. Pilot burner should stay alight - if not, repeat Steps (b. to (c. above.
e. To select ‘Full Flame’, depress and rotate gas control knob anti-clockwise to first stop 'HIGH'
flame position.
f. To select ‘Low Flame’, depress and rotate gas control knob fully anti-clockwise to ‘LOW' flame
position.
g. To adjust the temperature required, depress and rotate gas control knob between ‘HIGH’ and
‘LOW’ positions.
Turning 'OFF' the Open Burners / Pilots
a. To turn 'OFF' main burner, but keep pilot burner alight, rotate gas control knob to 'PILOT'
position. Main burner will extinguish and pilot will remain alight.
b. To turn 'OFF' the 'PILOT', depress and turn gas control knob clockwise back to ‘OFF’ position.
'PILOT' burner will extinguish.
IMPORTANT:
Should any abnormal operation like;
- ignition problems,
- abnormal burner flame,
- burner control problems,
- partial or full loss of burner flame in normal operation, appliance requires IMMEDIATE
service by a qualified service person and should not be used until a service is carried out.

18
Cleaning and Maintenance
Before Commencing Cleaning
NOTE:
 Allow appliance to cool before commencing cleaning.
 DO NOT use abrasive or strong caustic detergents as they could corrode or damage the
Cooktop.
 Ensure that any detergent or cleaning material has been completely removed after each
cleaning.
To keep your Cooktop clean and operating at peak efficiency, follow the procedures shown overleaf:-
Always turn off the gas / electrical supply before cleaning the appliance.
This appliance is not water proof. Do not use water jet spray to clean interior
or exterior of this appliance.
Caution
Burner Body
Spill Tray
Pot Stand
Burner Cap
Burner Mounting Rail
RN8900G - Cooktop Shown