Running In The Supply Cables; Electrical Connection - AEG WSP 300 H Gebrauchs- Und Montageanweisung

For the Fitter

2.3.3 Running in the supply cables

When integrating the heater into a built-in kitchen, measure off enough length of low-voltage,
high-voltage and charge control supply cable to allow the heater to be electrically connected
before integrating it below the working top. It is then possible to pull the heater out of its recess
at a later date, for instance for repair work, without having to disconnect the supply cables.
Before sliding the heater into its recess, bring in the supply cables from the rear of the heater
through the cable feed on the lower left hand side of the rear panel and through the cable ties on
the inner left side of the heater into the connecting compartment. Run the cables through the
strain relief below the switching panel and clamp them tight. Pull the cable ties on the left side of
the heater tight.
Caution:

2.3.4 Electrical connection

The storage heater appliance is connected to a load current (OFF-PEAK tariff) and control cables
for the room thermostat and for the charge control (A1/Z1; A2/Z2). The cables A1/Z1 and A2/Z2
are at line-voltage 230V~ and may thus be run together with a L/N/PE cable for the room
thermostat. The heater is suitable for direct connection without a spur, or with a wall socket.
According to regulations every branch circuit must be individually protected, for instance by
circuit breakers for all phases. These circuit breakers must have contact openings of at least
3 mm.
Each heater must be connected to a separate current carrying cable from the electrical
junction box. Running the load current cable from heater to heater is not allowed.
According to the Utilities' Technical Connection Regulations, a single-phase connection is
only allowed for heaters up to 2 kW rating. To do this, bridge the terminals L1-L2-L3.
When connecting to a charge control with a so-called "single-wire control", bridge the
terminals "A2/Z2" and "N".
Make sure the earth wire is correctly and firmly attached.
If the heater is to be used with a connecting rating of only 2 kW, do not connect the upper
heating element.
The AEG Kitchen Heater is factory-equipped with an electronic charge and discharge control.
The charger can be connected to an automatic charging device with an 80 % duty cycle
(square-wave, digital control signal), e.g. µC2100, µC3000 The discharge side includes the room
temperature sensor and the set point adjuster. An external room thermostat is not necessary.
Caution:
If a night-time set-back is required, bridge terminals TA-TA to a time-clock by means of a floating
contact. The night-time set-back is fixed at 3K.
30
Make sure that the connecting cables run flush to the heater's left side and
cannot touch the fan compartment. Hot surfaces!
When sliding the heater into its recess, make sure that the connecting cables are
not unduly bent or pinched. The connecting cables must be run so that they have
free movement behind the plinth recess.
Terminals L and N must be connected to continuous voltage (ON-PEAK cable). If
an external room thermostat is fitted, this must not switch terminal L to a
voltage-free state.