ROBAND AUSTHEAT AHT860 User manual

Manufactured By
Instruction Manual
FREESTANDING ELECTRIC HOTPLATE & TOASTER
AHT860
Version 6

2
CONTENTS
Product Features 2
Specifications 2
Parts Included 2
Safety Instructions 2
Cleaning & Maintenance 3
Installation 4
General Information 5
Operation 7
Worksation Layout 8
Troubleshooting 8
Thermal Cutouts 9
Spare Parts 10
Circuit Diagram 10
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PRODUCT FEATURES
▪High Temperature Capacity
▪Durable Stainless Steel Elements
▪12mm Steel Hotplate
▪Adjustable Legs & Rear Castors
▪Easy Cleaning Grease Over-Spill Box
▪Digital LED Temperature Display
▪Independently Controlled Grill
▪Cook/Idle Selector Switches
SPECIFICATIONS
Model
Power
(400VAC)
Size (mm)
Kg
W
D
H
AHT860
12.5KW
590
855
1075
120
PARTS INCLUDED
▪Electrical Hotplate & Toaster (AHT860)
▪Instruction Manual
Any damage to the machine as a result of
freight must be reported to the Freight
Company and to the agent responsible for the
despatch of machine within 24 hours of receipt.
No claims will be accepted after this period.
SAFETY INSTRUCTIONS
Read all Instructions and safety warnings prior to
use. Keep user manual for future reference.
Service and repair should only be performed by
qualified technicians who have read and
understood this manual.
Personnel must be trained prior to operating
this appliance.
This product is suitable for commercial use only.
This machine should not be operated by
persons (including children) with reduced
physical, sensory or mental capabilities, or lack
of experience or knowledge, unless they have
been given supervision or instruction concerning
the safe use of the appliance by a person
responsible for their safety.
Keep out of reach from children.
Avoid contact with the exterior of this machine
as surfaces can get hot.
Do not position appliances where hot surfaces
maybe accidently touched.
The machine should be disconnected from all
power and allowed to cool before cleaning or
servicing.
Regularly inspect the supply cord/plug and
discontinue use immediately if damage is found.
Return to manufacturer or authorised repairer
for repair prior to use.

3
This machine contains no user-serviceable parts.
Roband®, one of our agents, or a similarly
qualified person(s) should carry out repairs.
Keep cord away from heated surfaces.
Do not remove any cover panels from the
machine.
Roband Australia will not accept liability if:
▪Non-authorised personnel have tampered
with the machine
▪The instructions in this manual have not
been followed
▪Non-original spare parts are used
▪There is any damage to the unit
These units should NOT be left unattended
during operation.
During use, these units heat up and can cause
damage or bodily harm if not operated
correctly. Ensure proper signage is in place to
reduce the risk of any hazards.
GENERAL FIRE SAFETY
Before using any hotplate, adequate safety
measures should be in place. Such measures
should include, but not be limited to, having an
appropriate fire extinguisher or fire blanket
located nearby in case cooking oils on the plate
ignite. Refer to the appropriate regulations
pertaining to your operating environment for
details of the correct fire prevention measures
required.
SAFETY OF SERVICEPERSONS
Before servicing this machine it is necessary to
disconnect all power. These units are NOT
fitted with a mains isolating switch. An all-pole
disconnection/isolating switch should be
mounted and wired external to this machine
(see section ELECTRICAL CONNECTION ). A
cooling circuit will remain “live” within these
units even when turned “off” at the control
panel. Please consider this before allowing
qualified servicepersons to gain access to the
machine.
CLEANING & MAINTENANCE
WARNING: Switch off at mains switch and allow
to cool prior to cleaning.
CAUTION: Steel cutting processes used in the
construction of this machine can result in sharp
edges. Avoid contact with sharp edges during
cleaning and maintenance.
Do not clean with the use of a water jet or
immerse in water.
Do not use caustic or abrasive cleaning products
as they will damage the machine.
Empty/clean grease box regularly
Regular cleaning will prevent a build-up of oils
and keep the machine looking new.
No part of this machine (with the exception of
the grease box) should be immersed in water.
Wipe all surfaces of the machine with warm
soapy water using a damp non-abrasive cloth.
WARNING: Some cleaning agents can damage
stainless steel or the polycarbonates/plastics
used in switches and pilot lights. Use only soapy
water as a cleaning agent.
Ensure the unit is switched off before any
servicing or inspection is carried out.
Servicing and maintenance should only be
carried out by a qualified technician. It is
recommended that inspections be carried out
annually to ensure the appliance is in line with
changing standards.

4
INSTALLATION
Remove all packaging materials, tape, and any
protective plastic from the machine. Remove
any glue residue from the protective plastic or
tape using citrus cleaner.
Place the product on a firm, level surface in the
desired position. Do not install within 300mm of
flammable materials. The AH860 has a rear
spacer to set a minimum distance from non-
flammable walls that must never be removed or
modified.
A minimum distance of 500mm above the
cooking plate must be kept clear of any
obstruction. Do not obstruct or in any way close
off the front of the machine.
Install at a distance of at least 100mm from
materials and leave a 100mm air gap at the front
& rear of the unit. If the unit is used near
combustible material, common sense should be
applied to deem sufficient distancing.
Consult national standards that outline the
positioning, spacing and ventilation before
installation.
If this appliance is located in a row of appliances
(e.g. Austheat® Fryer), ensure that adjacent
machines do not restrict air flow. Failure to
provide adequate air flow could result in the
tripping of the thermal protective circuits within
the unit.
Consideration should be given to securing the
unit or limiting mobility if the unit is hard-wired.
Consult appropriate standards to ensure
compliance with relevant regulations.
We recommend the use of an RCD (Residual
Current Device) rated at no less than 30mA for
circuit protection. If an RCD is used to protect
multiple appliances, ensure the RDC is
appropriately rated so as to allow up to 30mA
leakage current for this unit.
CAUTION: Do not attach any other items,
machines or brackets to these units as any such
alterations may change the thermal properties
or safety aspects of these machines and will void
any warranty.
CAUTION: In order to avoid inadvertent re-
setting of the internal thermal cut-outs, ensure
the appliance is not wired through an external
switching devices (such as a timer), or any device
that is regularly switched on and off by the
utility.
ELECTRICAL CONNECTION
Before connecting the machine to the power
supply, ensure that all switches are in the OFF
position.
A licensed electrician must install this unit to
comply with national installation codes and
regulations. Means for disconnection from
supply must be incorporated in the fixed wiring
in accordance with the wiring rules.
WARNING: UNIT MUST BE EARTHED
We also advise that this unit, and any other
stationary appliances, be connected to a
equipotential bonding grid to eliminate any
differences in electrical potential within the
kitchen.
WARNING: If the electrical mains supply cabling
is damaged, the machine must not be used until
a qualified person has replaced the cabling and
deemed the machine to be functioning
properly.
There are two main supply connection points in
the unit. The first is through the lower back
panel at the rear of the unit. The second
connection point is through the base of the
machine at the rear. Both connection points
have three choices of holes for the cable to pass
through. Protection must be given to the mains
cables if they are positioned such that they can
contact the hot surfaces of the unit. A suitable

5
cable gland is required for the cable to pass
through.
Each hotplate must be connected to an
adequately protected power supply and an
isolation switch mounted adjacent to, but not
behind the Hotplate. This switch must be clearly
marked and readily accessible in case of fire.
GENERAL INFORMATION
This appliance is designed as a floor mounted
unit. The controls are located along the front
display panel with the primary ON/OFF switch
located on the lower control panel.
These units generate an extreme amount of
heat, which has the capacity to adversely affect
some components within the machine. These
units are fitted with internal fans to provide
component cooling in the upper display panel
and to provide an air curtain along the grease
box guide assembly. In the event of a failure of
an internal fan, a safety thermostat will operate
and cut power to the machine, the result being
a sudden loss of power (pilot lights
extinguished).
If such a shutdown occurs, leave the unit to cool
for 30 minutes and turn the unit off and back on.
This electrical reset will allow the unit to begin
operating again. If the unit shuts down a
second time this is confirmation that the unit is
overheating and you should call Roband
Australia or your local electrician for service.
A strong Pest-Eradication program should be in
place in any kitchen before installing this or any
similar machines.
WARNING: Pouring cold water onto a hot plate
will cause spitting and may result in damage to
the plate.
If required, the unit can be moved by lifting
from underneath the front, just above the door,
and pulling it along on the rear castors.
CONTROL LAYOUT
TOP DISPLAY PANEL CONTROLS
Cook/Idle switch
Left Heating Zone
Cook/Idle switch
Right Heating Zone
Cook/Idle switch
Toaster
Thermometer
Displays
Lower Control Panel
Left Zone
Thermostats
Right Zone
Thermostats
On/Off
Switch
Toaster Controls
Grease Tray

18/05/2023
WARNING: THE ON/OFF SWITCH DOES NOT
PROVIDE COMPLETE ISOLATION – refer to
section: ELECTRICAL CONNECTION
CONTROL DESCRIPTION
Both the hotplate and toaster have idle/cook
functions, meaning you are able to have 2 pre-set
temperatures to switch between. Simply set the
thermostats on the lower control panel to your
desired cooking or idle (non-peak cooking period)
temperatures and switch between the two during
busy periods (or quiet periods) to save energy.
This appliance utilises a hotplate that is able to
heat either the left side, right side or both sides
during operation. The three elements heating the
hotplate are split so that the left thermostat
controls the 2 left elements, and the right
thermostat controls the element on the right hand
side.
Both thermostats have a maximum temperature of
290C as indicated on the thermostat dial.
The primary ON/OFF switch is located on the
lower control panel which, when turned in the
“ON” position, will illuminate the green pilot light
located on the upper display panel and signal that
the unit is operational.
While the green pilot light will be constantly
illuminated during operation of this appliance, the
2 orange pilot lights connected to either the left
or right hand side controls will cycle on/off as the
thermostat supplies power to the elements to
maintain the predetermined temperature.
The Cook/Idle Switch allows you to quickly switch
between 2 predetermined temperatures set by
the lower thermostat.
Each thermostat clearly labels which operating
“zone” it controls, and matches up with the
relevant Cook/Idle Switch.
COOKING/HEATING ZONES
As previously mentioned, the hotplate is not split
evenly, with the left hand side elements heating
2/3rd of the hotplate and the right hand side
elements heating the remaining 1/3rd (as seen in
the pictorial below).

The hotplate is designed in such a way that heat
pools in the centre of the hotplate, with the front
and rear corners being comparatively cooler. This
allows the user to balance the cooking times of
multiple products/foods that require different
temperatures or times to cook.
TOASTING CONTROLS
The toaster element is controlled by the two
energy regulators on the lower control panel on
the right hand side. These are wired to a
“Cook/Idle” switch on the upper display panel
which allows switching between the two energy
regulators.
It is suggested that the “Cook” energy regulator
be set between 4-HIGH, and that the “Idle”
energy regulator be set to 2. This will allow the
elements to stay warm while using minimal power
and will speed up the recovery time when the
“Cook” setting is later selected. This is only a
guide and only personal use will dictate the best
settings for your particular bread.
CAUTION: Always use gloves when handling the
toast rack during operation.
TEMPERATURE DISPLAY
The temperature displays can be seen on the
display panel, located on the front of the hotplate
on the right hand side. It displays the real time
temperature of the appropriate hotplate “heating
zone”.
In the event of an overheating situation, the
temperature displays will also be shut down and
will not re-illuminate until the machine is turned
off and back on again (after cooling down).
OPERATION
SEASONING
Before cooking for the first time the hotplate need
to be seasoned as follows.
Remove the paper from the plate and wipe off
excess fat.
Brush the plate liberally with frying oil and
cover the surface with a layer of salt.
Set the thermostat to a temperature of around
180and heat for 25 minutes.
Allow the oil and salt to cool, and then
remove it carefully without scratching the
surface.
Brush the plate with oil again and re-heat until
the oil is burnt in. This will form a skin on the
surface of the plate.
Re-oil the surface once again.
Your Hot Plate is now ready for use. Be sure to
never clean the hotplate using cleaning agents
(only soapy water) as this can strip back the
seasoning layer that has formed and can damage
the plate.

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COOKING
1. Rotate the main switch to the “ON” position,
the green pilot light will illuminate, indicating
power is on.
2. Rotate thermostats to desired cooking/idle
temperature. Once set, the amber pilot light
associated with each side will illuminate until the
temperature is reached and will turn off.
3. Once the amber pilot light switches off,
cooking may commence (temperature has been
reached). Notice the amber pilot light will cycle
on/off in sync with when the thermostat energises
the elements.
4. When finished with the appliance, ensure both
thermostats are set at “OFF” and primary switch is
in the “OFF” position.
TOASTING
Models purchased with the Toaster/Grill also have
the advantage of a grilling / toasting rack which
can be used at any time, regardless of whether or
not the Plate is being used.
The toasting rack is placed on the runners and can
be used in any of the different height positions to
produce satisfactory results.
In all cases these units should be given sufficient
time to reach the set temperature before cooking
commences.
FIRST TIME OPERATION –“OFF-GASSING”
The toaster unit uses insulation materials within
the body of the machine. When heated for the
first time, the insulation will release some small
amount of vapour (commonly referred to as “Off-
Gassing”). For this reason we recommend that
operators run the machine with all controls in their
highest setting for at least an hour before
operating. Note that the vapours produced may
sting the eyes of anyone leaning over the Display
Panel.
The Off-gassing will typically last no more than an
hour, and, once the off-gassing process is
complete, no further off-gassing will occur unless
the unit overheats. In a fault condition, where the
machine overheats, some additional off-gassing
may occur before the unit’s safety over-
temperature device cuts the power.
The gaseous vapours emitted in the “off-gassing”
period are non-toxic. They have a slightly
unpleasant smell and may sting the eyes if in very
close proximity.
WORKSATION LAYOUT
Roband Australia recommends that areas
between this unit and other machines and/or
work-surfaces be kept clear of any potential
obstacles or trip hazards. Work areas should also
be cleaned and floors should be oil-free to reduce
the likelihood of slipping.
It is anticipated that these machines will be
operating beneath a suitable exhaust/extraction
unit to reduce the ambient temperatures around
the operator.
TROUBLESHOOTING
If the Hotplate does not function check the
following points before calling for service.
✓The power is switched “on”, both on the unit
and at any other point that supplies power to
the machine (e.g. an isolating switch on the
wall).
✓The mains power is not faulty.
✓The temperature has been set correctly and
the thermal cut-out has not tripped. Refer to
the “Thermal Cut-Out” section previous for
more information on this control.
✓The thermostat knobs are not loose or broken,
rendering the thermostats inoperable.
✓The circuit breakers located inside the lower
section of the unit are all in the “on”
position”. These are located behind a cover
panel.
Typical issues that can be easily identified can be
listed below:
1.1 Symptom –All power shut off

1.2 Check –Is air still flowing through the grease
box guide?
1.3 Probable Cause –(If Yes) –Overtemp has cut
out. Let machine cool for 30 minutes before
switching back on. (If no) –Possible failure of
primary fan or ON/OFF switch
2.1 Symptom –Plate takes too long to heat/cook
2.2 Check –All circuit breakers are in the “ON’
position
2.3 Probable Cause –If tripped, there could be
possible element failure. Reset circuit breakers
and operate as normal. Call for service if they trip
again.
3.1 Symptom –Grinding noise coming from inside
the unit
3.2 Check –Does it sound like a fan turning but
being noisy?
3.3 Probable Cause –Internal fan bearing may be
failing. Call for servicing before the fan fails, as
such a failure will cause the machine to overheat
and shut down.
THERMAL CUT-OUTS
These units are fitted with an internal safety
thermostat designed to cut power if the internal
temperatures reach a point where other
components may be damaged. There are a
number of possible situations that may cause the
safety thermostat to cut out, such as a thermostat
failure or the failure of an internal fan. You may
follow the procedure below as a first step to
rectifying the problem.
1. Switch the Hotplate OFF using the main
On/Off switch and allow it to cool for
approximately 30 minutes.
2. Switch the unit back on –operation can now
continue as normal.
3. Repeat steps 1 and 2.
4. If the unit again trips out it may be the result
of a failure in an internal fan - phone for
service.
If the Hotplate continues to perform without any
further tripping of the thermal cut-out after step 3,
then there is a strong possibility that the
thermostat in use at the time is faulty, or that one
of the internal cooling fans is no longer
functioning. This should be attended to by
qualified electrical personnel.
If the machine trips the thermal cut-out a second
time, switch the unit off and refrain from further
use until the unit has been repaired. Continuing
to use the machine may cause premature failure
of other components if repeatedly exposed to
over-temperature situations.

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SPARE PARTS
EC0225 Circuit Breaker –32A
ES0232 Mains Rotary Switch –4 Pole
EC0245 Rail Mounted Terminal Block Red
EC0246 Rail Mounted Terminal Block Blue
EC0247 Rail Mounted Terminal Block Earth
EC0249 Bridging Link
EC0347 Circuit Breaker –13A
EC0348 Contactor –2 Pole –25A
EC0361 Contactor –1 Pole –25A
EC0804 Fan –Tangential –18W
ES0264 Amber Pilot Light Assembly
ES0265 Green Pilot Light Assembly
HC0141 Element –125W 230VAC
HC0174 Element –3500W 230VAC
MC0093 Clamp - Cable
MC0609 Adjustable Leg
MC0610 Castor
MC0649 Toasting Rack
PC0276 Bush –1 3/8” Nylon 6/6
PC0287 3/4” Plastic Knockout Plug
PC0288 1” Plastic Knockout Plug
PC0379 Bush –1 3/8” Nylon 6/6 – Slotted
Face
SS2204 Crumb Tray/Reflector
SS2219 Circuit Breaker Cover
TC0033 Thermal Cutout - 60C –N/O
TC0035 Thermal Cutout - 70C –N/C
TS0030 Thermostat 290C Pan Assembly
VS0374 Grease Box & Handle Complete
VS0395 Digital Temperature Display
CIRCUIT DIAGRAM

18/05/2023
WARRANTY
The warranty conditions set out below are in addition to any warranties implied or governed by law.
Roband Australia warrants that this appliance shall be delivered free from defects in material and workmanship.
The warranty for this product is offered to the original purchaser, to be free of fault in both workmanship and
materials for a period of 12 months from date of purchase. Roband’s obligations pursuant to this warranty are
limited to the repair or replacement of the defective goods or materials, at its discretion and subject to the
terms contained within this Warranty statement.
The following conditions apply:
The product must be installed, maintained and used under normal operating conditions within the scope of the
operating instructions.
All warranty claims must be submitted to Roband or an authorised Roband dealer, and Roband authorisation
must be granted prior to repairs being carried out. Proof of purchase is required for any repair authorisation.
Warranty is back to base, meaning delivery to and collection of your product to Roband or an authorized
service agent is the responsibility of the purchaser.
Where a product cannot be returned back to base, on-site warranty can be arranged by prior agreement.
The following exclusions apply:
Claims or faults arising from misuse, neglect, transport damage or other mechanical damage, including but not
limited to; door’s, hinges & interlock switches etc., other than those arising from manufacture or material
defects. Where relevant, glass, Teflon® and lamps are not included in this warranty and RCD tripping due to
moisture absorption by Tubular Heating Elements is not a warranty fault.
Roband or any subsidiary company or Agent shall not be liable for loss of profit or damage to other equipment
and property except where it is in breach of the guarantees provided in accordance with applicable legislation.
Roband reserves the right to reject a warranty claim if it is not satisfied with the circumstances under which the
fault occurred or where a product has been altered from its original specification.
For on-site repairs outside of capital city metropolitan areas, travel costs, service callout fee and related labour
costs etc. are the responsibility of the claimant.
Any costs incurred for false claims or faults due to incorrect usage etc. are the responsibility of the claimant.
Any attempt to repair the product by non-Roband approved service personnel or the use of non-genuine parts
will void the warranty agreement
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are
entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable
loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of
acceptable quality and the failure does not amount to a major failure.
Extended Warranty;
You are entitled to a five (5) year extended warranty on the fryer tank, a two (2) year extended warranty on
parts, in conjunction with one (1) year labour coverage.
The extended warranty application form on the Roband website must be completed and submitted to Roband
within 30 days of purchase.
For the name of your nearest Australian authorised service agent, please contact:
Roband Australia Pty Ltd
1 Inman Road,
Cromer, NSW, 2099, Australia
Warranty: 1800 268 848
Tel: [phone]
Email: [e-mail]
Web: www.roband.com.au
For your nearest International distributor,
please visit:
https://www.roband.com.au/worldwide/