Slant/Fin VHS-30, VHS-180 VICTORY II VHS Models, Gas Rate Table, Safety Check

VICTORY II VHS Models

Gas Rate Table

Boiler rated input in	Cubic Feet Gas Consumption
cu. ft./hr. of 1000 Btu/cu. ft.	1000 Btu/cu. ft. gas, in
Natural Gas	3 minutes, at rated input
30	1.50
60	3.00
90	4.50
120	6.00
150	7.50
180	9.00

The gas metered in 3 minutes to obtain rated input for each boiler model, using 1000 Btu/cu. ft. gas, is tabu- lated in gas rate table.

B.Main Burners

1.Fire the boiler continuously for at least 15 minutes, to reach burner operating temperature.

2.Observe the flames, all burners. The base of all flame jets should be blue. The tips should be blue shading to orange. NOTE: Dust, disturbed by any movement, will cause bright orange flames. Wait for dust to settle.

3.For one burner, close the air shutter until some of its flame jet tips turn yellow-white, indicating insufficient primary air. Then open shutter until whitish tips disap- pear completely. Set all burner shutters to the same opening. Observe to make sure that no yellow-white tips appear over any portion of the flame. Small yel- low tips at the pilot are permitted (see Figure 18).

NOTE: This adjustment method gives MINIMUM pri- mary air setting for safe combustion. DO NOT attempt to make this adjustment unless burners are at operat- ing temperature. Adjustment should be made with burner access panel in final operating position. Use of a mirror may be helpful to observe flames. Note that burner ports are on top of main burner tube.

Figure 18.

C.Main Burner Ignition Checkout and Pilot Adjustment

1.The pilot flame must not smother or snuff out when tested as follows:

a.Main burner ignition from cold start-repeat.

b.Continued operation of main burner.

c.Main burner ignition with appliance at maximum operating temperature after prolonged operation.

NOTE: Observe operation of the pilot burner with appliance doors in the final operating position. Use of a mirror may be helpful.

2.Pilot Burner Adjustment

The pilot flame should envelope approximately 3/8 to 1/2 inch of sensor tip (see Figure 19). To adjust pilot flame:

a.Remove the pilot adjustment cover screw from the gas control.

b.Turn pilot adjustment screw clockwise to decrease or counterclockwise to increase pilot flame.

c.Replace pilot adjustment cover screw.

Figure 19.

SAFETY CHECK

Removing Control Box (cover). See Figure 20. To remove control box:

a. Turn black screw 1/4 turn clockwise to open position.

b. Remove two sheet metal screws in the top of control box.

c. Remove control box.

To replace the box, reverse procedure. Be sure that black screw is in the lower bracket receptacle and lock position.

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