Insulation Of The Pump In Cooling Systems; Electrical Connection - Wilo Stratos PARA-C Einbau- Und Betriebsanleitung

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CAUTION
Insufficient heat dissipation and condensate may damage the control
module and glandless motor!
• Do not thermally insulate the glandless motor.
• Ensure all condensate drain openings (Fig. I, Item 3) are kept free.

7.1.4 Insulation of the pump in cooling systems

Use in air-conditioning systems, cooling systems, geothermal systems and similar systems with fluid tem-
peratures down to below 0 °C. Condensate can form on fluid-conveying parts, e.g. pipes and pump housing.
• A diffusion-proof insulation must be provided by the customer for application in such systems (e.g. Wilo
Cooling Shell).
CAUTION
Electrical defect!
Condensate that accumulates in the motor can cause an electrical defect.
• Insulate the pump housing only up to the separating gap to the motor!
• Keep the condensate drain grooves unobstructed to ensure that condensate that devel-
ops in the motor can drain off unobstructed!
7.2

Electrical connection

• Electrical work: Electrical work must be performed by a qualified electrician.
DANGER
Risk of fatal electrical shock!
Before carrying out any work, switch off the power supply and secure it against being
switched on again.
Never open the control module (Fig. I, Item 5) and never remove any operating elements.
Work on the pump may only be started after 5 minutes have elapsed due to the dangerous
residual contact voltage.
Check whether all connections (including potential-free contacts) are voltage-free.
Do not operate the pump if the control module/cable is damaged.
If adjustment and operating elements on the control module are removed without author-
isation, there is a risk of electric shock if internal electrical components are touched.
CAUTION
Material damage caused by improper electrical connection!
If the wrong voltage is applied, the control module can be damaged!
54 Installation and operating instructions • Wilo-Stratos PARA-C/-CZ • Ed.01/2023-04