TECNOEKA Srl _____________________________________________________________ use and instruction manual
page. 10 __________________________________________________________________________________________
the gas mains and each appliance, in a position facilitating tap opening and shutting operations.
After installing the appliance, run a tightness test on the entire gas circuit, using a leak-detector
spray or other non-corrosive foam generating substances (do not use flames for this operation).
The unions of the copper pipes must be made by using mechanical couplings without seals.
2.8
Electrical connection
Connection to the electrical mains must be made according to the current legal regulations.
Before making the electrical connection, make sure that the voltage and frequency shown on
the rating-plate match those of the electrical supply system and that the latter is provided with
an efficient earth connection. The power cable used must not have lower characteristics than:
rubber insulated type H07RN-F with diameter of 3 x 1,5 mm
2
. If connection to the electrical
mains is permanent, a multi-core protective switch of adequate capacity must be installed, with
contact opening distance of the overvoltage category III (4000 V).
The yellow/green earth wire must not be disconnected by the switch.
If the supply cable is damaged then it must be replaced by the manufacturer or by your
technical support or by a qualified person to avoid any risk.
The appliance must be part of an equipotential system - this connection is obtained with the
stop screw marked with the symbol
located at the rear. The diameter of the equipotential
wire must be 2,5 mm
2
.
When the appliance is operating, the supplied voltage must not deviate from the nominal
voltage value of ± 10%.
To replace the cable, cut off electrical power, and access the terminal board by removing the
oven rear panel. Locate the cables so that the earth conductor is the last to detach from its
terminal in the event of reverse pulling. Use an electrical cable with characteristics not below to
those mentioned above.
If the power supply cable is damaged it must be replaced by another one with the same
characteristics (paragraph 1.3), by the manufacturer or their technical support service, or in any
case by a person with similar qualifications, to prevent any risk.
2.9 Connection to water mains
The oven must be supplied with softened drinking water (see the respective signal next to the
connection solenoid-valve), with a hardness value of 0,5 to 5°F (it is mandatory using a water
softener to reduce the formation of scaling inside the boiler). The water pressure must be in the
range of 100 to 200 kPa (1,0 – 2,0 bar). If the water pressure exceeds 2,0 bar, install a pressure
reducer device upstream. If the pressure is below 1,0 bar, use a pressure pump to increase the
level.
The connection to the water supply is done using the
¾
” threaded solenoid valve on the back
(at the bottom) of the appliance (see fig. 3), fitting a mechanical filter with a cut-off cock
(before connecting the filter, allow a certain amount of water to flow out in order to remove
any waste from the pipe).
Warning
Any damage caused by limescale or other chemicals contained in the water are not covered by
warranty.
2.10 Connection Water outlet
A drain pipe comes out of the rear of the appliance (see Fig.1) to drain the cooking chamber.
This pipe must be connected to piping with 30 mm inner diameter (DN 30) resistant to steam
temperature (90°C-100°C). To avoid choking the pipe should be stiff and there should be no
"elbows" along the drain path. The pipe must also maintain constant slope (min. 5%) along its
entire length (the length considered is that of the appliance's drain pipe at the drain point and
must not exceed 2 metres). The drain piping must be conveyed into an open floor drain (Fig.2);
otherwise, there must be at least 30 cm height difference between the drain pipe of the
appliance and the drain point in order to assure regular water drainage.
