Wilo TOP-S Series User Manual

Installation and operating instructions Wilo-TOP-S/-SD/-Z/-D/-RL/-I 35
English
5.4 Accessories
Accessories must be ordered separately:
• Wilo-Protect module C
• Change-over switch for 3~230 V
• ClimaForm cold water insulation for pump
• For TOP-D for single-phase connection:
• External capacitor with installation accessories
See catalogue for detailed list.
6Description 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 speed can be switched over (not for TOP-D). The speed switching is
executed in different ways depending on the terminal box. The ways are either
by a speed selection switch, by plugging in the change-over plug differently or
by an internal or external jumpering of the contacts. (see commissioning/speed
change-over).
A suitable change-over switch 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).
TOP-SD:
For a twin-head pump the two motor impeller units are fitted identically and
accommodated in a common pump housing.
TOP-Z:
The selected materials and designs of the pumps of this series comply with the
relevant guidelines (TrinkwV2001, ACS,WRAS) and are specially intended for
use under the operating conditions found in drinking water circulation systems.
In systems to the German drinking water regulations 2001, pumps with hous-
ings of bronze (CC 499K) or stainless steel must be used. If pumps of the series
Wilo-TOP-Z in GG (pump housing of grey cast iron) are used in drinking water
circulation systems, the national regulations and guidelines should be complied
with as necessary.
TOP-D:
The maximum speed is 1400 rpm, constant speed.

Wilo TOP-S Series Specifications

General

Application	Heating
Power Supply	1~230V, 3~400V
Maximum Operating Pressure	10 bar
Speed Stages	3
Materials	stainless steel shaft
Shaft Seal	Mechanical seal