Protecting The Cooling-Water System - Siemens 1PH818 Operating Instructions Manual

4.2.3

Protecting the cooling-water system

When the units are delivered, the high-grade steel cooling-water pipe system is not filled with
cooling water.
● When you put the motor into storage after use, drain the cooling water ducts and purge
● For operation, add a maximum of 20 % to 30 % of an anti-freeze agent to the cooling
A5E02605207A AA
Siemens AG Operating Instructions V1.0 1PH8
with air to ensure that they are completely empty.
water; use Antrifrogen N or Tyfocor, for example, as the anti-freeze.
CAUTION
Frost damage to the cooling circuit
Damage may be caused to the cooling circuit if the cooling water freezes.
If the ambient temperature falls below 0 °C during operation add anti-freeze to the
cooling water.
Preparations for use
4.2 Transport and storage
27