Vulcan-Hart FB series Instruções de Operação descarregar pdf (Página 14)

PARTS DESCRIPTION & REPLACEMENT

WARNING: Turn the main disconnect switch to "off" before

servicing the equipment. Reconnect the leads to the replaced

component exactly as to the original (refer to the wiring

diagrams for each model).

A. Switch Panel - see pages 15 & 16

Item 1 - Infinite switch. A DPST cycling switch varies, according

to its setting, the percent on-time of the output as shown below.

DIAL SETTING PERCENT ON-TIME

HI 100

MED 46

LO 37

MED-LO 27

VERY LO 7

OFF 0

Item 2 - The load control, as shown schematically, is connected

in series with the thermostat, thus providing variable rate of

temperature rise in the top section of the oven. The setting of

the infinite switch would need to be lower on products which

require longer cooking time in order for the temperature to

penetrate into the product. To replace the switch, remove the

knob and the locknut. To reinstall, make sure that. the dimples

on the face of the switch fall in the slot of the switch panel. The

load controls for the french plates are the same as described

above except for the fact that the power is applied directly to the

input terminal of the switch rather than through a thermostat.

Item 3 - Thermostat - A SPST snap switch controls the

temperature of the oven or griddle. The normally closed

contacts of the thermostat provide power to the elements

(directly to the griddle and the oven bottom elements and

through the infinite switch to the oven top element). Once the

desired set temperature is reached, the thermostat contacts

open, de-energizing the element. To replace the thermostat

remove the bulb (inside the retaining clips in the oven and

under the thermostat clamp in the back of the griddle plate).

Loosen the (2) screws mounting the thermostat to the switch

panel and pull the thermostat and its capillary out.

Thermostat Calibration Check:

Use a calibrated potentiometer with a thermocouple located in

the center of the oven rack. Set the thermostat knob to 350°F,

allow adequate time for the temperature to stabilize. If the

potentiometer reading is within ±15°F of the thermostat setting,

the oven is considered to be within the range of acceptable

calibration and further adjustment is not necessary.

Thermostat Calibration Adjustment:

Remove knob from dial shaft B. Turn adjustment screw

clockwise to decrease temperature and counterclockwise to

increase temperature.

NOTE: 1/4 turn of adjustment screw represents a temperature

shift of 35°F. "A" DIAL SHAFT "B"

THERMOSTAT CALIBRATION

Indicator Lights: The neon indicator light goes "on" when the

thermostat, mounted next to it, is energized (calling for heat)

and will go "off" when the desired set temperature is reached.

To replace the light, simply press it out from the switch panel.

B. Element Assemblies - Pages 21, 22, 26, 27 & 28. Show the

detail of the components in each element assembly. To replace

an element, the element clamps need to be removed or opened

up to allow removal of the element.

112674-14

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 29 30

Comentários a estes Manuais

Sem comentários

Vulcan-Hart FB series Instruções de Operação Página 14

Comentários a estes Manuais

Manuais e produtos relacionados com Fogões Vulcan-Hart FB series