6.1.2 Planning the Electrical Installation
Meaning
It is crucial for the unit's electrical system to be properly installed in order for the unit to run safely and
without any problems. All the rules and specifications specified in this section, as well as the proce‐
dures described, must be followed to the letter.
Rules for safely installing the units electrically
In order to prevent hazards related to improperly installed electrical connections, make sure to ob‐
serve the following rules:
■
The unit's case must be properly grounded as per generally accepted standards and practices and
connected to an electrical ground system.
■
If there are two units mounted in a single stacking kit, both the units' cases and the stacking kit
must be properly grounded as per generally accepted standards and practices and connected to an
electrical ground system.
■
The length of the field installed conductors and the length of the flexible conduit must take into ac‐
count how much the retaining element on the base allows the unit to move. Do not roll over, pull, or
otherwise subject the field installed conductors to any tension when moving the whole setup (base
and unit). This also applies to any other additional electrical connection cables between the combi
oven and optional accessories, such as a signal tower.
■
While placing the unit into operation, check all electrical cables and connections to make sure they
have been routed properly and installed correctly as per generally accepted standards and practi‐
ces.
Equipment provided by the customer and electrical installation rules
The following table shows the equipment that must be provided by the customer and the rules that
have to be followed when making the relevant electrical connections.
Equipment
Rules
Fuse
The unit must be fused and connected in accordance with all applicable
local regulations and country-specific installation regulations.
Electrical ground
The unit must be connected to an electrical ground system. If there are
two units mounted in a single stacking kit, both the units' cases and the
stacking kit must be properly connected to an electrical ground system.
Electrical ground: An electrical connection that brings the frames of electri‐
cal equipment and other conductive parts to the same or approximately
the same potential.
Disconnector
An easily accessible all-pole power disconnection with a contact gap of at
least 0.12" must be installed. The unit must be connected through this
power disconnector.
The power disconnection will then be used to de-energize the unit before
performing cleaning, repair, and installation work.
Installation must comply with all applicable local standards and regula‐
tions. In the case of permanent installations, a disconnector is required.
Power supply
The power cord must be an oil-resistant, jacketed, flexible cable that complies with the applicable local
regulations. It is recommended for the field installed conductors not to exceed a length of 5½ ft. A
The length of the power cord used for units placed on a base with casters must take into account how
much the retaining element on the base allows the unit to move. Do not pull or otherwise subject the
field installed conductors to any tension when moving the whole setup (base and unit).
A specific phase rotation direction or phase sequence is not required when connecting the unit.
6 Installation
Installation Manual
51
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