Installation Instructions - Vaillant 306 741 Instrucciones De Uso

GB

6 Installation instructions

6 Installation instructions
All electrical work shall be undertaken by a com-
petent person and shall comply with BS 7671
(IEE Regulations).
Turn off the boiler.
Isolate the electrical supply to the boiler
Open lower control cover (if fitted)
Lower electronic control box by turning
securing screws 90° and lowering fascia
panel.
10
Release the time clock blanking plate from
the control box by pushing the retaining clip
(situated on the right hand side, at the rear of
the control box above the pressure gauge) to
the left and pulling the blanking plate from the
front of the control box.
Raise and secure the control box into position.
Locate the four pins on the rear of the
programmer and gently push the programmer
until it locks into position.
Recommission the boiler.