SV9401/SV9402/SV9403, SV9501/SV9502/SV9503, SV9601/SV9602 SMARTVALVE™ SYSTEM CONTROLS
11
69-1004—2
5.
If the desired outlet pressure or flow rate cannot be
achieved by adjusting the ignition system control,
check the ignition system control inlet pressure
using a manometer at the inlet pressure tap of the
ignition system control. If the inlet pressure is in the
nominal range (Tables 8A and 8B), replace the
ignition system control. Otherwise, take the
necessary steps to provide proper gas pressure to
the control.
NOTE: If the burner firing rate is above 85,000 Btuh on
SV9401/SV9402/SV9403 or 150,000 Btuh for
SV9501/SV9502/SV9503 models (see Table 2
for SV9601/SV9602 capacities), it may not be
possible to deliver the desired outlet pressure.
This is an application issue, not a control failure.
Take whatever steps are required to correct the
situation.
Step-Opening (P) Pressure Regulator
Models
Step-opening models require you to check and adjust the
full-rate pressure first and then check the step pressure.
The step pressure is not field-adjustable.
1.
Carefully check the main burner lightoff to make
sure the burner lights smoothly and all the ports
remain lit.
2.
Check the manifold pressure listed on the
appliance nameplate. The ignition system control
full rate outlet pressure should match this rating.
3.
With the main burner operating, check the ignition
system control flow using the meter clocking
method or check pressure using a manometer
connected to the output pressure tap on the
ignition system control.
4.
Adjust the pressure regulator (if necessary) to
match the appliance rating. See Tables 8 and 9 for
factory set nominal outlet pressure and adjustment
range.
a. Remove the pressure regulator adjustment cap
screw.
b. Using a screwdriver, turn the inner adjustment
screw clockwise to increase or counterclock-
wise to decrease the gas pressure to the
burner.
c. Replace the cap screw and tighten firmly to
prevent gas leakage.
5.
If the desired outlet pressure or flow rate cannot be
achieved by adjusting the ignition system control,
check the ignition system control inlet pressure
using a manometer at the inlet pressure tap of the
ignition system control. If the inlet pressure is in the
nominal range (Tables 8A and 8B), replace the
ignition system control. Otherwise, take the
necessary steps to provide proper gas pressure to
the control.
6.
Carefully check the burner lightoff at step pressure
to make sure the burner lights smoothly, without
flashback to the orifice. Make sure all ports remain
lit.
7.
Cycle the burner several times, allowing at least 60
seconds between cycles for the regulator to
resume the step function.
8.
Repeat steps 6 and 7 after allowing the burner to
cool.
9.
Readjust the full rate outlet pressure (if necessary)
to improve lightoff characteristics.
Convertible (R) Models
Models with convertible (NAT/LP) regulators, used for
mobile home applications, are not field-adjustable. Do
not attempt to adjust outlet pressure on these controls.
Use the instructions in this manual for changing between
LP and natural gas.
Table 8. Pressure Regulator Specification Pressures (in. wc).
Table 9. Pressure Regulator Specification Pressures (kPa).
Model Type
Type of Gas
Nominal Inlet
Pressure
Range
Factory Set Nominal Outlet
Pressure
Setting Range
Step
Full Rate
Step
Full Rate
Standard Slow NAT
5.0 - 7.0
—
3.5
—
3 - 5
LP
12.0 - 14.0
—
10.0
—
8 - 12
Step
NAT
5.0 - 7.0
0.9
3.5
None
3 - 5
LP
12.0 - 14.0
2.2
10.0
None
8 - 12
Convertible
NAT
5.0 - 7.0
—
3.5
None
None
LP
12.0 - 14.0
—
10.0
None
None
Model Type
Type of Gas
Nominal Inlet
Pressure
Range
Factory Set Nominal Outlet
Pressure
Setting Range
Step
Full Rate
Step
Full Rate
Standard Slow NAT
1.2 - 1.7
—
0.9
—
0.7 - 1.2
LP
2.9 - 3.9
—
2.5
—
2.0 - 3.0
Step
NAT
1.2 - 1.7
0.2
0.9
None
0.7 - 1.2
LP
2.90 - 3.9
0.5
2,5
None
2.0 - 3.0
Convertible
NAT
1.2 - 1.7
—
0.9
None
None
LP
2.9 - 3.9
—
2.5
None
None
69-1004-2.fm Page 11 Wednesday, November 5, 2003 10:49 AM
Содержание LGF
Страница 10: ...Gas Pressure Fryer Introduction 8 Safety Labels ...
Страница 11: ...Gas Pressure Fryer Introduction 9 ...
Страница 38: ...Gas Pressure Fryer Notes 36 Notes ...
Страница 39: ...Gas Pressure Fryer Appendix A 37 Appendix A Gas Control Valve Instructions ...
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