Merrychef eikon
®
e2s Installation and User Manual
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Rules for safe electrical installation of the appliances
Observe the following rules to prevent hazards caused by faulty electrical connections:
▪ The electrical supply must be connected in accordance with applicable local regulations of the professional associations
and of the relevant power supply company.
▪ The case of the appliance must be grounded in a suitable manner and connected to an equipotential bonding system
(EU).
▪ If two microwave combination ovens are installed in a stacking trolley, both cases of the appliances and the trolley itself
must be grounded in a suitable manner and connected to an equipotential bonding system.
▪ For microwave combination ovens on a wheeled platform, the length of the mains power lead must accommodate the
degree of movement allowed to the appliance by the retaining device on the wheeled platform. When moving the
assembly (platform plus appliance), never place the mains power lead under tension.
▪ All electrical connections must be checked when the appliance is prepared for first-time use to ensure cables are laid
correctly and connections are made properly.
Equipment provided by customer and electrical installation regulations
The table below shows what equipment must be provided by the customer and what regulations must be observed when
connecting the appliance.
Overcurrent protection and connection of the appliance must comply with local
regulations and national installation requirements.
If the installation includes more than one appliance, one overcurrent device must be
provided for each appliance.
The appliance must be incorporated in an equipotential bonding system (EU).
Equipotential bonding: electrical connection that ensures that the frames of electrical
equipment and any external conductive components are at an equal (or practically
equal) potential.
Residual-current device (RCD)
/ Ground Fault Circuit
Interrupter (GFCI)
The installation regulations require protection by a residual-current device (RCD).
Suitable residual-current devices meeting the relevant national regulations must be used.
If the installation includes more than one appliance, one residual-current device must be
provided for each appliance.
An easily accessible all-pole disconnection device with a minimum contact separation of
3 mm must be installed close to the appliance. The appliance must be connected via this
disconnection device.
The disconnection device is used to disconnect the appliance from the electrical supply
for cleaning, repair and installation work.
Fitted frequency-converter
The appliance is fitted with one frequency converter (FC) and EMC mains input filters.
These devices may result in a leakage current of more than 3.5 mA per FC drive.
Use a suitable RCD for the rated voltage.
Properties of the residual-current device
The residual-current device (RCD) must have the following properties:
▪ Filter for filtering out RF currents
▪ “Time delayed" trip characteristic for RCD devices with trip threshold of 30mA*: prevents RCD being tripped by
charging currents of capacitors and parasitic capacitances when appliance is switched on.
▪ “Leakage current protection, type SI” trip characteristic for RCD devices with trip threshold of 30mA*: insensitive to
nuisance tripping.
▪ *Local national regulations may require lower trip ratings, such as in North America. In which case these lower trip
threshold ratings must be adopted, ensuring the dedicated device has a high immunity to nuisance tripping.
Note. Residual Current Devices (RCDs) are also known by other terms, such as Earth Leakage Circuit Breakers (ELCBs), Safety
Switches, Ground Fault Interrupters (GFIs) and Ground Fault Circuit Interrupters (GFCIs). These should not be confused with
overcurrent protection.
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