Commissioning - Dimplex System 18 Installation And Servicing Instructions

9 9 . . 0 0 I I N N S S T T A A L L L L A A T T I I O O N N
9 9 . . 6 6 M M A A K K I I N N G G T T H H E E E E L L E E C C T T R R I I C C A A L L C C O O N N N N E E C C T T I I O O N N S S
The boiler is fitted with a 1.5m length of 3 core cable. This
can be connected to the fused 3A 230V 50Hz supply.
To connect an external control proceed as follows:-
1. Lower the drop down door.
2. Remove the two screws holding the controls box and ease
the box away from the boiler. The electrical connections are
made at the left hand side on the rear of this box.
3. Slacken the cable clamp on the terminal block (Fig. 36).
Insert the external control wiring through the clamp and route
it to the terminal block. Tighten the cable clamp.
4. Refer to the instructions supplied with the control.
I I M M P P O O R R T T A A N N T T : : The room thermostat M M U U S S T T be suitable for
230V switching.
Ensure that the external control input cable (s) have
sufficient slack to allow the control box to drop down.
5. Route external control cables away through the mains cable
grommet supplied.
9 9 . . 7 7 P P R R E E L L I I M M I I N N A A R R Y Y E E L L E E C C T T R R I I C C A A L L C C H H E E C C K K S S
1. Prior to commissioning the boiler preliminary electrical
system checks should be carried out.
2. These should be performed using a suitable meter, and
include checks for Earth Continuity, Resistance to Earth, Short
Circuit and Polarity.
Fused supply 3A
230V~50Hz
230V - Switch Live
230V - To external control
Permanent live
red linkwire
blue (neutral)
green/yellow (earth)
brown (live)
Connect external control using L2 & L3
F F i i g g . . 3 3 7 7
To boiler
L3 orange
N blue
L2 red
L1 brown
Disconnect link wire
© Dimplex Boilers 2008
F F i i g g . . 3 3 6 6
green/yellow
2 2 3 3