Specifications
4
Service & Parts Manual original Instructions
Part Number 32Z3839 GB
Issue 5
Service & Parts Manual original Instructions
Part Number 32Z3839 GB
Issue 5
5
PRODUCT
DETAILS
SAFETY &
REGULATIONS
2 PRODUCT OVERVIEW & FUNCTIONS
CONSTRUCTION
Stainless steel cavity and casework.
CONTROL SYSTEM
Colour touchscreen, icon driven.
Storage for up to 1024 programs with 6 stages per
cooking program providing a user instruction for
each stage.
USB memory stick data transfer.
MICROWAVE POWER
Distribution system, rotating active antennae.
Microwave settings, o or 5-100% in 1% increments.
Safety system: Agency approved monitored
interlock door system, current monitoring and
overheat detection for magnetron.
CONVECTED HEAT
Temperature settings 0°C o and from 100°C to
275°C in 1°C steps.
Distribution system, Planar Plumes.
Safety system: oven cavity overheat detection.
How it works:
The e2 utilizes a new and patented heat transfer method
called ‘Planar Plumes’.
Heated air is directed into planes which collide above the
food surface and are then drawn around the food.
Start up Sequence
With the oven switch in the OFF position and the
mains power ON, the QTS & SRB boards boot up.
When the oven switch is turned ON the splash
screen briey displays oven information and the
cabinet cooling fan is activated.
After completing a successful logic test, the safety
relay is energised and the oven preheats or displays
a preheat temperature choice. Once preheated the
oven displays the main menu if in FS mode or a
recipe selection if in QSR mode.
Shutting Down Sequence
When oven switch is turned OFF the screen displays
‘Shutting Down’ and the cooling fan operates until
the cabinet temperature has been suciently
reduced (cavity temperature of 50C).
The safety relay is de-energised and the QTS & SRB
boards remain active.
1.1 Important:
This manual provides technical guidance for engineers
who have successfully undertaken a recognised product
familiarisation and training course run by Merrychef to carry
out service/repair tasks to the appliance/s shown on the
front cover of this manual which must not be used for any
other make or model of appliance.
Please remember that it is wiser not to attempt a service task
if you are unsure of being able to complete it competently,
quickly, and above all safely.
To avoid injury to yourself or others and to protect the
appliance from possible damage, ensure you have read and
understand all the relevant instructions and ALWAYS follow
the Safety Codes when servicing an oven.
1.1.1 Before attempting to repair the oven, check the oven
for microwave emissions using a calibrated microwave
emission detector.
1.1.2 Check that the oven is not emitting microwaves, even
when supposedly not in operation.
1.1.3 Check that the oven is not operating continuously,
whether the display indicates cooking or not.
1.1.4 Never manipulate the mains power lead whilst it is live.
1.1.5 Before removing the oven casing ALWAYS isolate the
oven from the mains electricity power supply; switch o
and disconnect the oven plug from the wall socket, turn o
isolator switch to disconnect xed wired ovens. NOTE: The
oven switch does not provide adequate protection against
electric shock as it does not isolate all of the internal wiring
from the mains.
1.1.6 Ensure Electrical supply is locked-o to prevent the
oven from being inadvertently powered up.
1.1.7 Do not leave the oven unattended without the oven
panels tted and keep within sight of other personnel
when testing the oven, ensuring persons other than trained
engineers are denied access.
1.1.8 The minimum number of panels should be removed
and the HT capacitors must be discharged before working on
the oven using a suitably insulated 10 MΩ Resistor.
1.1.9 Temporary insulation should be used to prevent
accidental contact with dangerous conductors.
1.1.10 Do not touch any internal wiring or connectors within
the Oven, whether you believe it is live or not and avoid
touching the Metalwork (Casing, Panels, etc) of the Oven
with your Body.
1.1.11 Only use electrically rated screwdrivers for adjusting
‘Pots’ etc., ensuring the tool touches nothing else.
1.1.12 Ensure the Test Equipment is set correctly before use.
1.1.13 Test equipment such as meter test leads or clamps
must be tted and removed whilst the unit is dead, for each
and every test.
1.1.14 Do not undertake functional Magnetron testing with
the oven panels removed.
1.1.15 Avoid touching the Test Equipment, unless necessary
for the operation.
1.1.16 Upon completion of a service follow the steps for
‘Commissioning the oven’ under the Commissioning section
of this manual.
1 SAFETY REQUIREMENTS
DANGER:
BEFORE REMOVING THE OVEN CASING, ISOLATE
THE OVEN FROM THE MAINS ELECTRICITY
POWER SUPPLY; SWITCH OFF, DISCONNECT
OVEN PLUG FROM WALL SOCKET, TURN OFF
ISOLATOR SWITCH TO DISCONNECT FIXED
WIRED OVENS AND LOCKOFF.
WARNING:
ALWAYS DISCHARGE THE HT CAPACITORS
BEFORE WORKING ON THE OVEN USING A
SUITABLY INSULATED 10M RESISTOR.
IF SMOKE IS OBSERVED:
SWITCH OFF THE OVEN DISCONNECT/ISOLATE
FROM THE ELECTRICAL SUPPLY
KEEP THE OVEN DOOR CLOSED TO STIFLE ANY
FLAMES.