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38 WILO SE 2019-11
NOTICE
The thermal insulation shells included in the scope of
delivery are exclusively permitted in heating and do-
mestic hot water circulation applications with fluid
temperatures >20°C!
Insulation of the pump in cooling/air-conditioning systems
Single pumps can be insulated for use in cooling and air condition-
ing applications using Wilo cold water insulation shells (Wilo-
ClimaForm) or any other commercially available, diffusion-proof in-
sulation materials.
There are no prefabricated cold water insulation shells for twin-
head pumps. For this purpose, use commercially available, diffu-
sion-proof insulation materials provided by the customer.
CAUTION
Electrical defect!
Condensate that accumulates in the motor can cause an elec-
trical defect.
▪Insulate pump housing only up to the separating gap to the motor!
▪Keep the condensate drain grooves unobstructed to ensure that
condensate that develops in the motor can drain off without prob-
lems!
➜Fig.13
5.7 Following installation
1. Check impermeability of the pipe/flange connection.
6 Electrical connection
6.1 Personnel requisition
▪Electrical work: Electrical work must be performed by a qualified
electrician.
6.2 Requirements
DANGER
Risk of fatal electrical shock!
• Immediate risk of fatal injury if live components are
touched!
• Failure to install safety devices (e.g. module cover
of control module) can cause electrical shock, poten-
tially resulting in life-threatening injuries!
• Even if the LED is not illuminated, voltage may be
present inside the control module!
• If setting and operating elements are improperly re-
moved from the control module, there is a danger of
electric shock if interior electrical components are
touched!
• Applying an incorrect voltage to SELV lines will re-
sult in incorrect voltage in all pumps and on-site
building automation devices that are connected to
SELV lines.
▪Always deactivate the power supply from the pump and if neces-
sary SSM and SBM!
▪Never operate the pump without the module cover closed!
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