Technical Speciﬁcation Bulletin Number
Date of Issue
CI Oil Valve Adjustment
Page Number 2
The fuel enters via the ﬁlter and the ﬂoat valve into the oil control itself. The rising oil level in the
oil control lifts the ﬂoat and, as soon as the oil has reached the level mark, the ﬂoat valve is closed
to allow only as much oil to ﬂow into the control as ﬂows out of it to the burner.
Adjustment of High and Low Fire Settings
When the stove is ﬁrst put into operation, an adjustment of the oil control to the existing conditions,
sometimes proves necessary. Such adjustments are necessary if the minimum ﬂue draught required
is not available or if the fuel oil used is not of the viscosity (cSt/25°C) speciﬁed on the name plate
of the oil control valve. Adjustment of the ﬂow is only to be done when the heating device is in
After the ﬂow has been corrected, 5 minutes must be allowed to elapse before the ﬂame corresponds
to the newly adjusted ﬂow. As a general rule, a quarter-turn of the ﬂow adjustment screw sufﬁces
to make the necessary correction. Alongside the ﬂow adjustment screws are arrows indicating
which direction the screw must be turned to increase or decrease the ﬂow.
The low ﬁre screw has an arrow indicating low ﬁre decrease as anticlockwise. This must only be
adjusted when the oil control valve is set at its minimum setting.
The high ﬂame must ﬁrst be adjusted with the stove running at maximum capacity. The high ﬁre
screw has an arrow indicating high ﬁre decrease as a clockwise turn of the screw.
Once the high ﬁre has been adjusted the valve should be again turned to minimum setting and the
low ﬁre setting re checked.
If the Valve has Flooded
Should the feed valve become leaky as a result of accumulated dirt, the oil level in the control rises
further, the over ﬁll ﬂoat rises releasing the arming lever and stopping any further oil entering the
The appliance must be allowed to go cold before any work on the oil control valve or resetting of
the arming lever are attempted after the over ﬁll ﬂoat has been activated.
To re arm the valve the excess oil must be removed from the over ﬁll chamber. This can be done
by ﬁrst turning the oil control valve to the maximum setting and then pushing down the arming
lever and holding it down for 30 seconds. The burner pot will need the excess oil removing before
the burner is re lit.
Euroheat Distributors (HBS) Ltd., Unit 2, Court Farm Business Park, Bishops Frome, Worcestershire, WR6 5AY United Kingdom
Telephone Technical Support 01885 491117 Facsimile 01885 491101 Reception 01885 491100
Email firstname.lastname@example.org Wed Site sales www.euroheat co.uk
Latest Technical Information www.euroheat.co.uk/support