Wilo Wilo-CronoBloc-BL, Инструкция по установке и эксплуатации

Страница: 12 / 30

English
Installation and operating instructions Wilo-IL/-DL/-BL 27
5.3 Scope of delivery • Pump IL/DL/BL
• Installation and operating instructions
5.4 Accessories Accessories must be ordered separately:
• PTC thermistor tripping unit for switch cabinet installation
• IL/DL: 3 mounting brackets with fixation material for installation on a
base
• DL: Blind flange for repair work
• BL: 4 mounting brackets with fixation material for installation on a
base for nominal motor power of 5.5 kW and above
For a detailed list, consult the catalogue/price list.
6 Description and function
6.1 Description of the product All the pumps described are single-stage low-pressure centrifugal
pumps in compact design with a coupled motor. The mechanical seal
is maintenance free. The pumps can be installed both directly as a
pipe installation pump in a sufficiently anchored pipe or placed on a
foundation base.
In conjunction with a control device (Wilo CC system), the power of
the pumps can also be continuously controlled. This allows optimisa-
tion of the pump output for the demands of the installation and eco-
nomically efficient pump operation.
• IL:
The pump housing has an INLINE construction, i.e. the flanges on the
suction and pressure sides lie along a centre line (Fig. 6). All pump
housings are provided with a pump base. Mounting on a foundation
base is recommended for nominal motor powers of 5.5 kW and higher.
• DL:
Two pumps are arranged in a shared housing (double pump). The
pump housing has an INLINE construction (Fig. 7). All pump housings
are provided with a pump base. Mounting on a foundation base is
recommended for nominal motor powers of 4 kW and higher.
The base-load pump is only operated in control operation in conjunc-
tion with a control device. The second pump is available to fulfil peak-
load requirements. Moreover, the second pump can adopt the reserve
function in the event of a fault.
NOTE
Blind flanges are available for all pump types/housing sizes of the
DL series (see chapter 5.4 “Accessories”), which guarantee replace-
ment of the motor impeller unit even for double pump housings
(Fig. 7 right). A motor can therefore remain in operation while replac-
ing the motor impeller unit.
• BL:
Spiral housing pump with flange dimensions in accordance with
DIN EN 733 (Fig. 8). Pump with screwed on pedestal, up to motor
power of 4 kW. With cast or screwed on feet from a motor power
of 5.5 kW.
Fig. 6: View of IL
Fig. 7: View of DL
Fig. 8: View of BL