Vaillant turboMAX pro 24/2 E, Instructions For Installation And Servicing, Page: 16 / 44

5 Boiler Installation Sequence
Fig. 5.9: Wiring system
Fig. 5.10: Exposed rear view of switchgear cabinet
• Connect the power supply cord as follows (Fig. 5.11).
Green/yellow (earth) wire: boiler terminal Earth sign
Blue (neutral) wire: boiler terminal N
Brown (live) wire: boiler terminal L
Note!
DO NOT use boiler terminal connections 7-8-9.
• Refit the terminal box cover by pushing into place
until it clips back into position.
• Raise the control panel and secure in place.
2
1
3
N L 9 8 7 5 4 3
RT 24V 230V RT 230V
Instructions for Installation and Servicing turboMAX pro R3
16
5.10 Connect the flue system to the boiler
• Refer to separate air/flue duct installation instructions
included with the boiler.
5.11 Electrical installation
General requirements
Important!
All electrical work shall be carried out by a
competent person and shall comply with
BS7671 (IEE Regulations).
The boiler is supplied for connection to 230 V, ~ 50 Hz
supply fused at 3 A rating.
Connection to the mains supply shall be made via a
fused 3 pin plug to an unswitched shuttered socket,
both complying to the requirements of BS1363.
(Alternatively, connection may be made via a 3 A fused
double pole isolator having a contact separation of at
least 3 mm in all poles and supplying the boiler and con-
trols only).
The point of connection to the mains supply must allow
complete electrical isolation of the boiler and its ancil-
lary controls. It should be readily accessible and adja-
cent to the boiler. A 3 core flexible cord according to
BS6500 tables 6, 8 or 16 (3 x 0.75 to 3 x 1.5 mm2)
should be used.
Warning!
This appliance must be earthed.
Important!
Ensure that all cords pass through the cable
clamps in the rear of the control box and are
securely fixed. Ensure that the power supply is
connected such that the current carrying con-
ductors become taut before the earth conductor
should the supply cord slip from the cable
clamp.
Warning!
Mains connection terminals L and N remain live
even when the boiler on/off control is switched
off.
5.12 Connection to the main supply
• Lower the control panel.
• Unclip the terminal box cover (1) from the control
panel (2).
• Feed the power supply cord in to the appliance as
shown (fig 5.9).
• Use cable clamps.
833792_41GB_012005.qxd 09.03.2005 16:47 Uhr Seite 16