Wilo Stratos GIGA2.0-D, Инструкция по установке и эксплуатации

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Installation en
Installation and operating instructions Wilo-Stratos GIGA2.0-I, Wilo-Stratos GIGA2.0-D 163
Influence of material and temperature
The maximum permissible forces and torques apply for the grey cast iron base material
and for an initial temperature value of 20 °C.
For higher temperatures, the values must be corrected as follows depending on the ra-
tio of their modulus of elasticity:
E
t, EN-GJL
/ E
20, EN-GJL
E
t, EN-GJL
= Modulus of elasticity grey cast iron at the selected temperature
E
20, EN-GJL
= Modulus of elasticity grey cast iron at 20 °C
6.5.2 Condensate drainage/Insulation
Fig. 16: Permitted installation positions with
horizontal shaft
ƒ
When the pump is used in air-conditioning or cooling systems:
The condensate that forms in the lantern can be drained specifically via an existing
drilled hole. A drain pipe can also be connected to this opening and a small amount
of escaping liquid can be drained off.
ƒ
The motors are equipped with condensation water holes which are closed with a
rubber plug at the factory. The rubber plug is used to guarantee that protection
class IP55 is fulfilled.
ƒ
Use of the pump in air-conditioning or cooling systems:
To allow condensation water to drain off, the rubber plug must be removed down-
wards.
ƒ
With a horizontal motor shaft, the condensate hole must be positioned towards
the bottom (Fig. 16, Item 2). If necessary, the motor must be turned.
CAUTION
If the rubber plug is removed, protection class IP55 is no longer ensured!
NOTICE
When systems are insulated, only the pump housing may be insulated. Lantern, drive
and differential pressure sensor are not insulated.
An insulation material without ammonia compounds must be used as insulation mater-
ial for the pump. This prevents stress corrosion cracking on the union nuts of the differ-
ential pressure sensor. Otherwise, direct contact with the brass screw connections must
be avoided. Stainless steel screwed connections are available for this as an accessory.
As an alternative, corrosion protection tape (e.g. insulating tape) can also be used.
6.6 Twin-head pump installation/Y-
pipe installation
A twin-head pump can either be a pump housing with two pump drives or two single
pumps operated in one Y-piece.