Votos - 3, Puntuación media: 3.7
(
)
)
|
Resumen del manual
This in turn interrupts the 24 VAC to the ignition module, resulting in closure of the gas valve. Control Options 24G Series Flatbottom gas fryers are equipped with Thermatron temperature controller. The fryer is turned on and off by means of a rocker switch and the temperature is set by adjusting a potentiometer. The Thermatron board is located in the wireway box behind the control panel, or in a component box inside the cabinet (depending on fryer configuration). The Thermatron temperature controller operates by comparing resistance between the potentiometer setting and the temperature probe. If the resistance values don’t match, an on-board relay energizes, sending voltage to the gas valve, which supplies fuel to the burners. When the resistance values are equal, the on-board relay de-energizes, interrupting voltage to the gas valve, which stops the fuel flow. Depending on the system configuration and destination, 24VAC, 115VAC or 208/230VAC controller boards are used. 1-3 24G SERIES FLATBOTTOM GAS FRYERS CHAPTER 1: SERVICE PROCEDURES MELT CYCLE DISABLE 65 1 AC1 3AC2 3A 2A 7 8 91AEXT POT PROBE10 112 COMRELAY NO12 13 NC14Not used Thermatron Controller Board Line voltage enters the interface board at terminals 1 and 3. The temperature controls (potentiometer) are connected to terminals 7, 8 and 9. The sensor probe circuit is connected to terminals 10 and 11. The high-limit and gas valve routes through terminal 12. Terminals 2 and 13 are jumped out. Terminals 5 and 6 are the melt-cycle disable circuit. The melt cycle is enabled unless terminals 5 and 6 are jumped out. 1-4 24G SERIES FLATBOTTOM GAS FRYERS CHAPTER 1: SERVICE PROCEDURES Safety Components All 24G Series Flatbottom gas fryers are equipped with a high-limit thermostat. In the event that the fryer fails to properly control the oil temperature, the high-limit thermostat prevents the fryer from overheating to flash point. The high-limit thermostat acts as a normally closed power switch that opens when exposed to temperatures above 410°F [(210°C)- CE] to 435°F [(224°C)- Non-CE]. CE and non-CE high-limits are not interchangeable. Frying systems with built-in filtration are equipped with drain microswitches that disable the fryer if the drain valves are not completely closed. Opening a drain valve (i.e. filtering or draining the fryer) automatically opens the reset switch circuit. The drain valve must be fully closed prior to resetting the safety switch. 1.2 Accessing Fryers for Servicing DANGER Moving a fryer filled with cooking oil/shortening may cause spilling or splattering of the hot liquid. Follow the draining instructions included with the fryer before attempting to relocate a fryer for servicing. NOTE: Perform the following only if the fryer cannot be serviced in its installed location. Some of the following service procedures require the fryer to be connected to the gas and/or electrical supply. 1. Shut off the gas supply to the unit. Unplug the power cords. Remove any attached restraining devices. 2. Disconnect the unit from the gas supply. 3. Relocate the fryer for service accessibility. 4. After servicing is complete, reconnect the unit to the gas supply, reattach restraining devices, and plug in the electrical cords. 1-5 24G SERIES FLATBOTTOM GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 1-6 1.3 Cleaning the Gas Valve Vent Tube (if applicable) 1. Set the fryer power switch and the gas valve to the "OFF" position. 2. Carefully unscrew the vent tube from the gas valve. NOTE: The vent tube may be straightened for ease in removal. 3. Pass a piece of ordinary binding wire (.052 inch diameter) through the tube to remove any obstruction. Remove the wire and blow through the tube to ensure it is clear. 4. Reinstall tube and bend so that the opening is pointing downward. 1.4 Adjusting Burner Manifold Gas Pressure WARNING This task should be performed by qualified service personnel only. 1. Ensure that the gas valve knob is in the "OFF" position. 2. Remove the pressure tap plug from the burner manifold. 3. Insert the fitting for a gas pressuremeasuring device into the pressure tap hole. 4. Place the gas valve in the "ON" position then place the fryer power switch in the "ON" position. When the burner lights and continues to burn, note gas pressure reading for correct pressure in accordance with the table on page 1-1. Remove pressure tap from burner manifold to check burner manifold pressure. 24G SERIES FLATBOTTOM GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 5. To adjust burner gas pressure, remove the cap from the gas valve regulator and adjust to correct pressure (arrows). Pilot Ignition Valve (Line Voltage) Non-CE Electronic Ignition Valve CE Pilot Ignition Valve 6. Place the fryer power switch and the gas valve in the "OFF" position. Remove the pressure- measuring device fitting from the pressure tap hole and reinstall the pressure tap plug. 1.5 Adjusting the Pilot Flame (where applicable) 1. Remove the cap from the pilot adjustment screw hole on the gas ...
Otros modelos de este manual:freidoras - 1824G (4.03 mb)