©
EUROHEAT
DISTRIBUTORS (H.B.S) LTD. Aug 2006
Instructions Part number IN1016 Ed G
22
Primary Air Collar Adjustment
The primary air collar controls the combustion characteristics of the burner, and colour of the flames,
by governing the amount of air induced into the gas before combustion occurs.
To adjust the collar, remove the right hand cast iron stove panel. This is removed by loosening and
sliding backwards the rear heat shield. Gently lift and remove side panel. The collar is adjusted by a
hexagon socket screw (Phillips headed) screw. Adjust the screw until the required gap is achieved.
Natural Gas
The air collar should be adjusted to give
a 3 mm wide opening.
Changing Gas Operating Type
The appliance will be set to operate with the gas type indicated on the packaging and on the
appliance.
If the gas operating type requires changing the following procedure must be followed.
a)
The main burner nozzle must be changed to the required nozzle for the gas type to be
used. (See appliance data ).
b)
The pilot nozzle must be changed to the required nozzle for the gas type to be used.
c)
Eurosit 630 gas valve, the low fire bypass nozzle in the gas control valve must be changed
to the required nozzle for the gas type to be used. (See gas valve assembly).
d)
Adjust the primary air collar to the required distance for the gas type to be used. (See
below).
e)
The appliance operating pressure must be adjusted. Using a manometer to read the
operating pressure adjust the operating pressure adjustment screw for the gas type to be used. (See
appropriate gas valve technical data for required pressure).
f)
Mertik Maxitrol gas valve GV34. The low fire operating pressure will require adjustment.
Light the stove and turn the control knob to a position which gives a low fire operation of the flame i.e
the stove operates in three modes. 1. Pilot position, 2. Low fire, 3. High fire (full output). Check the
operating pressure by connecting a manometer to the operating test nipple. Observe the pressure,
adjust as required by using the low fire adjustment screw. (See gas valve technical page).
L.P.G
The air collar should be adjusted to give
its maximum setting.
Primary Air Collar
