NORSEMAN 200 PLUS AND
NORSEMAN 250
Burner Orifi ce (See Fig. 17)
1. Disconnect compression nut from brass elbow and
thermocouple from pilot control valve.
2. Carefully reposition pilot line and thermocouple away
from safety control valve.
3. Disassemble the following:
-- Pilot control with manual valve from burner orifi ce
-- Burner orifi ce from burner casting.
4. Clean the burner orifi ce.
FIG. 17
PILOT LINE
FIG. 18
BURNER
VALVE
Pilot Orifi ce (See Fig. 19.)
1. Loosen compression nut at pilot orifi ce and carefully
reposition pilot tube away from the orifi ce.
2. Remove pilot orifi ce from pilot head and screen from
orifi ce inlet.
3. Ensure orifi ce hole is not plugged.
Vertical Convection Heaters
BURNER VALVE
COMPRESSION
NUT
ELBOW
THERMOCOUPLE
BURNER ORIFICE
ELBOW
VALVE
Owner's Manual • Workman & Norseman
FIG. 19
BRACKET ASSEMBLY
PILOT HEAD
ELECTRODE
PILOT
ORIFICE
SCREEN
COMPRESSION
NUT
Safety Control Valve (See Fig. 18)
1. Remove pilot line from safety control valve.
2. Remove thermocouple at safety control.
3. Loosen safety control from manual burner
valve.
THERMOCOUPLE
BURNER ORIFICE
ELBOW
VALVE
VALVE
21