Installation; Hydraulic Connection - Grundfos ALPHA2 L 15-50 Montageanleitung

III - INSTALLATION

1 - HYDRAULIC CONNECTION

Change the pump after cutting off the electrical power supply and draining the boiler.
Configuration 1 (boiler with old control panel support)
Fit the new pump (1) in place of the old one.
The tube (4) must be used when fitting the new pump (1) to enable the bleeder kit (not supplied) (9) to
be installed. If necessary use the bleeder kit available on the installation.
The new pump must be rotated about 65° so that it does not touch the boiler jacket when it is fitted.
Next fill the boiler with water to obtain a pressure of about 1.5 bar in the installation.
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