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2.5.1
Unit Installation (fig. 3-6)
• Draw the air inlet grille (6) at its underside towards you (the front) off the catch spring, and re-
lease it out of the top catch by lifting it.
• Loosen the air inlet grille (5) using both the quarter-turn caps and remove the grille (fig. 3).
• Loosen the front wall (4) with screws at the bottom (inside threaded holes), lift the front wall
slightly and remove (fig. 4). Loosen the inside front wall with screws at the bottom and remove
(fig. 5).
• Disassembly of the right side wall (3): Remove the rotary knob (a), screws (b1 and b) on the side
wall (3), pull the side wall slightly to the side at the back (c), push forward, tilt to the side at the
top (d), lift and remove (fig. 6).
• Feed the power cables and connecting cables for charging control unit and discharge control unit
through the opening in the unit rear wall (15) and connect according to section 2.5.2 (lay con-
necting cable about 10 mm and shorten as required so that it does not obstruct the air vents in
the side wall);
• Place the unit at the planned location and screw to the wall (or to the floor if floor fixing is ne-
cessary).
• Remove cover plate (10), cardboard inlays and operating button from inside (fig. 9). This must be
completely free of foreign bodies such as packing leftovers.
Check the thermal insulation in the unit for transportation damage and replace if necessary.
Insert the storage blocks (fig. 10 and 11)
The storage blocks are delivered packed separately.
Storage blocks with slight transportation damage may still be used. This does not impair the
function of the heater.
The heating elements (17) must be lifted slightly to insert the storage blocks (9) (fig. 10).
Place the first storage block with the heating element recess at the top some distance away from
the right thermal insulation under the heater and push to the right and rear thermal insulation. The
elongated holes form the heating channels.
When lifting the heating elements, make sure that the through holes in the side thermal insulation
are not widened by the heating elements.
Then push the cover plate (10) removed from the interior over the top storage blocks (fig. 1).
2.5.2
Electrical Connection
The heating elements are connected electrically with 3/N/PE ~ 50 Hz 400 V or in the
units WSP 010 also with 1/N/PE ~ 50 Hz 30 V.
Direct connection with NYM is possible. The number of supply cables and wires as well as cable
cross sections depends on the connection rating of the unit and the type of mains connection and
on special electricity supply company regulations. Observe the appropriate circuit diagrams for this.
When connecting the unit to an automatic charging control unit, voltages may occur at the termi-
nals A1/Z1 and A/Z even when the fuses are removed.
Connection
Relieve the strain on the electrical connecting leads as required and connect according to the elec-
trical circuit diagram in the device (on the inside of the right side panel) or the connection diagram.
If the bracket in the switching area for holding the mains terminals is poorly accessible due to too
small a spacing, it can be swung forward during connection work after loosening the screw (not re-
moving) in the rear panel.
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