Vesta GH-250 User manual

GH-250
GH-400
GH-550
GH-610
GH-760
Electric Griddle
User’s Manual

Dear User & Client,
Firstly, thanks for purchasing and using our product. All the information and
guidelines of this user’s manual comply with certain applicable regulations, which come
out from our long-term accumulated knowledge and experience as well as current project
development situations.
Limited to some special structures, additional specified items or new technology
changes, the actual usage situation might be some different from what stated in this user’s
manual. Should you have any question, please do not hesitate to contact the
manufacturer via the method shown in back cover page of this manual.
For safety purpose and efficient operation, please make this document available to
users for reference. Do have them to read this manual carefully before carry out any
action on this device, especially when starting.
This manual is not applicable for those who have physical or mental
disabilities, insufficient experience, and/or insufficient knowledge, including
children.
The manufacturer declines any responsibility in the event users do not follow
the instructions or guidelines stated here.
The user’s manual should be placed close to the device, in convenience of users’
reading before operation. We have the full authority to reserve the further technical
changes of the device, in the scope of further performance improvement characteristic
development.
Symbolic explanation
In this manual, symbols are used to highlight all important safety instructions and
recommendations related to the equipment. In order to avoid danger, casualties or
property losses, please pay special attention to these instructions.
Equipotential Hazard voltage Anti-scald

Warning
◆Any self-modification, wrong installation, adjustment or maintenance can lead to
property loss or casualty. Please contact the manufacturer for any adjustment or
maintenance, and have the work done by a trained & qualified person.
◆For your safety sake, please keep the machine away from any liquid, gas or other
object, which is flammable or explosive.
◆This appliance should not be operated by those who have physiological, perceptual
or mental disabilities or those who have insufficient experience or knowledge
(including children). Only in conditions of being given sufficient supervise & guarantee
of personal safety, as well as proper instructions & guidance, those who were
mentioned above can make some particular operation of this device.
◆Keep children away from the device.
◆Preserve this manual safely. When passing on/selling the device to a third party, the
manuals must be handed over along with the device. All users must operate the
device complying with the user’s manual and related safety guidelines.
◆Do not store or use gas, liquid or object that is flammable or explosive in the vicinity of
the mounting position of the appliance.
◆If this appliance is placed near walls, partitions or kitchen furniture and the like, it is
advisable to make these facilities with non-combustible material, otherwise cover
them with non-combustible heat-resistant material, and pay attention to fire
prevention regulations.
◆Housing of the appliance should be grounded to ensure safety. Thanks for your
cooperation!
◆Do not use extra power supply that not marked on the product. Before using, ground
the appliance reliably to ensure safety.
◆Do not destroy the furnace body surfaces with hard or sharp objects.

Contents
1. Functional Introduction………………………………….......…1
2. Structure Schematic Diagram & Working Principle…….......1
3. Basic Features & Parameters………………………….......…2
4. Precautions & Recommendations …………………….......…3
5. Working Instructions & Operation Flow……………….......…4
6. Routine Inspection ……………………………………….........5
7. Cleaning & Maintenance……………………………….......….5
8. Failure Analysis & Trouble Shooting………………….......….6

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1. Functional Introduction
This product is manufactured by our company, which is combined with advantages from
home and abroad. It is novel in design, reasonable in structure, easy in operation, durable
in using, fast in heating up and convenient in maintenance. The thermostatic control
makes the temperature freely adjustable at a certain range according to food requirement.
Therefore, it is the ideal equipment for hotel, supermarket, restaurant, western restaurant,
fast-food restaurant and food industry.
2. Structure Schematic Diagram & Working Principle
Structure Schematic Diagram:
1--thermostat 2—heating indicator 3—power indicator 4—drip pan
5—furnace body 6—power cord 7—rubber foot

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2.1 Structural & Functional Features:
1. Smooth plate surface treatment, easy to clean, very sanitary and clean.
2. Desired temperature can be set according to requirement and food condition.
3. Fast heating up, easy operation and convenient maintenance.
2.2 Working principle
The back of grill is equipped with electric heating pipe, which generates heat when
electrified, and the heat is transferred to grill to raise the temperature to the set
temperature. When the temperature reaches the set value, the thermostat can
automatically cut off the power supply, and the electric heating tube would stop working.
When the temperature drops slightly, the thermostat can automatically be electrified, and
the electric heating tube would work. The temperature of the grill keeps constant like the
above.
2.3 Copyright protection
This equipment complies with the government standards and directives of marketing.
All text, drawings, images or other illustrations included in this manual are copyrighted.All
parts of this publication may not be reproduced, transmitted or used in any form or manner
without the written consent of the manufacturer. Anyone who conducts unauthorized acts
in connection with this publication shall be liable for damage claims. All rights reserved.
3. Basic Features & Parameters
Model
Dimension
(mm)
Therm
ostat
Voltage
Rated Input
Power
Plate Size
（mm）
GH-250
260×465×270
1
220V～230V 50Hz
1.37 kW～1.5kW
256×330×12
GH-400
400×545×270
1
220V～230V 50Hz
2.73 kW～3kW
396×400×12
GH-550
550×495×270
1
220V～230V 50Hz
2.73 kW～3kW
546×348×12
GH-610
610×545×270
2
220V～230V 50Hz
5.46 kW～6kW
606×400×12
GH-760
760×545×270
3
3N~380~400V 50Hz
8 kW～9kW
756×400×12
GH-760
760×545×270
3
220V～230V 50Hz
8 kW～9kW
756×400×12

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4. Precautions & Recommendations
4.1 Operation notice:
1. The equipment shall be installed and maintained by professional technicians. If
necessary, please contact professional technicians. The grounding connection of the
equipment must comply with local regulations. (warning: improper operation, installation
or maintenance may cause property damage, casualties, etc. Please read this manual
carefully before operation, installation and maintenance.)
2. All operators must strictly abide by the electricity safety rules, and confirm that the
power supply voltage is consistent with the power supply voltage on the product
nameplate and has been safely grounded before use.
3. All operations can only be carried out on the safe condition. In case of failure, the
machine must be repaired immediately.
4. This product needs to be operated by a trained chef and cannot be disassembled or
modified. The disassembly and refitting of products will lead to serious accidents.
5. Before cleaning, unplug the plug, cut off the power supply, and do not use jet for
cleaning. Water can conduct electricity, and the product may cause electric shock due to
leakage.
6. Do not knock the product or place heavy objects on it. Abnormal operation may cause
damage and danger. Before, after, and in the working process, because the temperature
is high, do not touch the appliance directly with hands, especially the high- temperature
area, which may cause burns.
7. It is forbidden to use the power supply other than those indicated for the product.
8. It is forbidden to use the power switch that does not meet the safety standards.
9. When the thunder approaches, the power switch shall be disconnected as soon as
possible. It can avoid electrical damage caused by lightning.
10. It is forbidden to use hard and sharp objects which may damage the surface of griddle
11. Turn off the switch after the work
12. Circuit installation and maintenance must be carried out by qualified professional
engineers.
13. If the power cord is damaged, to avoid danger, it must be replaced by the
manufacturer or its maintenance department or similar full-time personnel.
14. It is forbidden to wash the electrical box directly with water or immerse it in water for
cleaning.

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4.2 Storage and transportation
The packed equipment shall not be stored in the open air for a long time, and shall be
placed in a well ventilated warehouse without corrosive gas. When temporary storage is
needed, rainproof measures shall be taken.
For the sake of safety, this equipment has been inspected by qualified technicians before
transportation. Please pack it carefully. Please check the equipment integrity and
transportation damage immediately after receiving. In case of obvious damage, please do
not accept. The transportation company shall be fully responsible for the damage caused
during the transportation. For the damage on confidentiality, it should be put forward
immediately after discovery, because the compensation for damage can only be claimed
within the validity period.
During transportation, the equipment shall be placed with care and shall not be inverted to
prevent damage to the product shell and interior.
4.2 Installation
The power supply voltage must be consistent with the use voltage of the equipment.
Copper equipotential terminal is set under the rear of the griddle. The copper core wire of
no less than 1.5mm2shall be used for connection according to the regulations. After
installation, check whether the wiring is loose, whether the voltage is normal and whether
the grounding is safe. The fixed wiring connected must be equipped with all-pole
disconnection according to the wiring rules, with at least 3mm contact distance. It is also
required to install grounded leakage protection switch or relay with leakage peak value of
10mA. The installation space of the equipment shall be at least 1500mm long, 850mm
wide and 530mm high. After unpacking, the equipment shall be placed on the ground.
5. Working Instructions & Operation Flow
1. Before using, check that whether the power installation is correct. Making sure that
the supply voltage complies with the working voltage of the appliance.
2. Turn on the power switch, the green indicator illuminates, which indicates that the
appliance is energized. Rotate the thermostat clockwise to align the desired
temperature scale value with the dot, at this time, the yellow indicator illuminates, the
heating elements are working. When desired temperature is reached, the thermostat
will cut off the power supply automatically with the yellow indicator off, the heating
elements stop working. Once the temperature drops a bit, the thermostat will connect
the power supply automatically, the yellow indicator illuminates and the heating
elements restart working with the temperature rising. The procedure circulates to
ensure the temperature keep constant within the set range.

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3. Griddle plate temperature can be freely adjusted at a certain range in accordance
with food type to get an ideal effect.
4. During operation, if any anomaly occurs, please stop using immediately.
5. During operation, have your protective gloves worn. Caution scald.
6. Routine Inspection
Stop using if user feels that there are some problems in the circuit or machine.
Check the situation of the machine before or after using every day.
Whether the machine is tilted?
Whether the control panel is damaged?
Whether there is strange odor or vibration noise?
7. Cleaning and Maintenance
1. Before cleaning, cut off the power supply first to prevent unexpected accidents.
2. After working everyday, clean the inner tank, body surface and power cord with wet
towel containing non-corrosive detergent. Do not aim at the appliance with water jet
directly. Water infiltration may damage the electric performance and cause electricity
safety accident.
3. If not going to use the appliance at any time, turn off the thermostats and power
switch.
4. If not going to use the appliance for a long period of time, clean it completely and
store it in a well-ventilated warehouse without any corrosive gases.

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8. Failure Analysis &Trouble Shooting
8.1 Electrical Diagram:

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8.1 Common failure:
Aforementioned troubles are just for reference. If any failure occurs,
please stop using, and inform the professional technicians to check and
repair.
Symptoms
Causes
Solutions
Power is connected and
heating indicator is on, but
the plate does not heat up.
1. The thermostat is
defective.
2. At least one of the
heating elements burns
out.
1. Replace the thermostat.
2. Replace the burnt-out
heating element.
Connect the power and
rotate the thermostat, the
heating indicator illuminates,
but temperature keeps rising
without control.
1. The thermostat is
malfunctioning.
1. Replace the thermostat.
Power is connected and
heating is normal, but the
indicator is not on.
1. The indicator is
defective.
1. Replace the indicator.
The indicator is not on and
the appliance does not heat
up.
1. Power supply is
abnormal or power is
disconnected.
2. The fuse is fused.
1. Check the power supply
and connection to make
it supply normally.
2. Replace the fuse.