Scope Of Delivery; Description And Function; Description Of The Pump - Wilo TOP-Z Serie Instrucciones De Instalación Y Funcionamiento

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5.3 Scope of delivery

• Pump, complete
• 2 gaskets for threaded connection
• Two-piece thermal insulation shell
• 8 x M12 washers
(for M12 flange screws on combi-flange version DN 40-DN 65)
• 8 x M16 washers
(for M16 flange screws on combi-flange version DN 40-DN 65)
• Installation and operating instructions
5.4 Accessories
Accessories must be ordered separately:
• Wilo-Protect-Module-C
• Switching plug for 3~230 V
See catalogue for detailed list.

6 Description and function

6.1 Description of the pump

The pump is fitted with a glandless motor (single-phase (1~) or three-phase
(3~), for main connection voltage and mains frequency see the name plate, in
which all the rotating parts are in contact with the fluid. The design relies on the
fluid to provide lubrication for the plain bearings of the rotor shaft.
The motor has multi-speed properties. The speed switching process is executed
in different ways depending on the terminal box. The ways are either by a speed
selection switch, by plugging in the switching plug differently or by an internal
or external bridging of the contacts. (see Commissioning/Speed change-over).
A suitable switching plug is available as an accessory for the voltage 3 ~230 V.
The assignment of terminal boxes to the individual pump types is described
in the section "Terminal boxes" (chapter 6.2).
The selected materials (red brass pump housing) and designs of the pumps of
this series comply with the relevant guidelines (TrinkwV, ACS, WRAS) and are
specially intended for use under the operating conditions found in secondary
hot water circulation systems (also see DIN 50930-6/TrinkwV. in Germany).
If pumps of the series Wilo-TOP-Z in GG (pump housing of grey cast iron) are
used in secondary hot water circulation systems, the national regulations and
guidelines should be complied with as necessary.
30 WILO SE 12/2013