Radiant RK 18 OV User Manual

MAINTENANCE INSTRUCTIONS
40
6.3 Accessing the boiler
All maintenance operations require
one or more of the boiler casing
panels to be removed.
The side panels can only be removed
after the front panel has been
removed.
Front panel:
 Remove the fixing screws at the
lower edge of the front panel.
 Grasp the lower part of the panel
and pull it outwards (see fig. 1)
and then up (see fig. 2).
Left and right side panel:
 Remove the fixing screws at the
front and lower edge of the side
panel to remove.
 Grasp the bottom of the panel,
move it sideways and then
upwards to remove it.
To access the electrical
connections of the control panel,
proceed as follows:
• Remove the front panel (see fig. 1
and fig. 2).
• Grasp the left and right control
panel support brackets (see fig. 5)
and pull them outwards, at the
same time rotating the panel
downwards.
• Unscrew the four fixing screws (see
fig. 6) and remove the panel back piece.
6.4 Flushing out the primary side
• Fill the boiler as per the filling instructions.
• Using a drain off cock on the lowest point of the system allow the water to drain from the system and boiler.
• In order to flush the system correctly turn off all radiators open the filling loop and drain cock simultaneously
and allow the water to flow through the boiler.
• Open each individual radiator allowing water to flow through then turn that radiator off and repeat for all
radiators on the system.
• Turn off the filling loop and close the drain cock open all radiators and open the filling to fill the system.
• Continue to fill the system until the pressure gauge reches 1.0 bar.
Fig.1
Fig. 2
Fig. 3
Fig. 4

Radiant RK 18 OV Specifications

General

Brand	Radiant
Model	RK 18 OV
Category	Boiler
Language	English