Foster N4LVFTNA, Instruction Manual, Page: 15 / 40

-15-
Fig. 7
LOW SETTING VALVE ADJUSTEMENT
The low setting should produce a stable flame when tur-
ning the knob from max to min. The flame should be
1/8 inch (3,2 mm) or lower and must be stable on all
ports on low setting.
To adjust: operate burner on max for
about five minutes to properly heat the burner itself. Turn
knob back to min; remove knob, and insert a small flat
tip screwdriver into the centre of the valve stem. Adjust
the flame size by turning adjustment screw in either di-
rection, while holding the stem to prevent it from rotating
(fig. 7).
Flame must be of sufficient size to be stable on all burner ports. If flame adjustment is
needed, adjust only on the low setting. Never adjust flame size on higher setting.
When a two-way gas tap is present there are two screws for minimum gas flow adjustment.
NOTE: all gas adjustment should be done by qualified service personnel only
COOKTOP TECHNICAL DATA
(7055 962, 7245 962, 7216 942, 7217 942)
Burner BTU/hr Injector (mm)
Natural Propane
Auxiliary 2.800 0,80 0,50
Semi-rapid 5.100 1,10 0,65
Rapid 7.600 1,30 0,82
Triple crown 11.000 1,60 0,95
COOKTOP TECHNICAL DATA
(7637 900, 7647 900, 7638 900, 7648 900, 7639 900,
7649 900, 7640 900, 7650 900)
Burner BTU/hr Injector (mm)
Natural Propane
Auxiliary 5.000 1,05 0,63
Semi-rapid 9.100 1,45 0,86
Rapid 10.750 1,55 0,92
Double crown (inside burner)
15.500
0,90 0,53
Double crown (external crown) 1,70 1,00
To identify the right nozzle for each burner, please refer to the figure embedded on the
nozzle itself.
DIMENSIONS OF THE APPLIANCES
Mod. Width in (mm) Height in (mm) Depth in (mm)
7055 962 33
55/64
(860) 1
49/64
(45) 19
11/16
(500)
7245 962 34
3/8
(873) 2
3/32
(53) 20
13/64
(513)
7216 942-7217 942 54
31/64
(1384) 2
9/16
(65) 13
31/32
(355)
7637 900-7647 900 32
9/32
(820) 2
53/64
(72) 22
3/64
(560)
7638 900-7648 900 41
37/64
(1056) 2
53/64
(72) 22
3/64
(560)
7639 900-7649 900 45
7/16
(1154) 2
53/64
(72) 22
3/64
(560)
7640 900-7650 900 42
33/64
(1080) 2
53/64
(72) 19
19/64
(490)
Fig. 7