Vulcan-Hart VTEC25 Manual de instalación descargar pdf (Pagina 6)

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MGB-A OPERATING, INSTALLATION, SERVICE & PARTS

1. Lighting instructions are inside the front panel. To

open the panel to reach the manifold.

a. Remove thumb screws from upper front panel,

lift upper front panel until it clears the lower front

panel.

b. To install the upper front panel, place panel above

lower front panel, slip upper panel down so it

engages lower front panel.

2. LIGHTING PILOT: If the pilot goes out, an automatic

shut-off valve turns off the gas supply to the burners.

To relight the pilot follow procedure.

a. Turn the control valve to “off”. Wait a sufficient

length of time to allow gas which may have accumu-

lated in the burner compartment to escape (at least

five minutes).

b. Turn on the main shut-off valve.

c. Depress and hold in on the red button “A” on the

automatic shut-off valve while lighting the pilot

burner.

d. When gas at pilot has been running for about 45

seconds, release the red button. If pilot does not

remain lighted, repeat the operation allowing more

time before releasing red reset button.

3. MAIN BURNER AIR SUPPLY

For efficient burner operation, it is important that a proper

balance of gas volume and primary air supply is main-

tained, resulting complete combustion. Insufficient air

supply results in a yellow streaming flame. Check flames

with control knob turned to “HI”, and radiants and top

grates removed. Primary air supply is controlled by air

shutter on front of the burner.

Loosen the hexagonal head screws on front of the

burner, and adjust the air shutter to obtain a sharp flame

without lifting. Lock the air shutter in place tightening the

screws. Repeat this procedure with all burners.

Do not permit fans to blow directly at the unit and

wherever possible avoid open windows next to the unit

sides and back. Avoid wall type fans which create air

cross currents within the room.

It is also necessary the sufficient air should be allowed to

enter the room to compensate for the amount of air

removed by any ventilating system. Otherwise, a subnor-

mal atmosphere pressure will occur, affecting operation

adversely and causing undesirable conditions.

A properly designed and installed hood will act as the

heart of the ventilating system for the room or area in

which the unit is installed, and will leave the unit indepen-

dent of changing draft conditions.

C. LIGHTING AND ADJUSTMENT

FIGURE 1

e. To adjust the pilot flame, remove pilot adjustment

cap “B” (Figure 1) to expose the adjusting screw.

Rotate the adjusting screw clockwise to reduce the

gas flow; and counterclockwise to increase the

gas flow, to provide a properly sized pilot flame

(approximately

⁄2" to

⁄4" long) Replace the adjust-

ment cap “B”.

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Vulcan-Hart VTEC25 Manual de instalación Pagina 6

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