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Фрагмент инструкции
5. Remove two mounting screws from control base and remove control base from oven. 6. Reassemble in reverse order and check calibration of new control (see below) and check system operation. ELECTRONIC TEMPERATURE CONTROL – CALIBRATION 1. Turn burner switch off. 2. Remove electronic temperature control from the mounting base by removing one retaining screw at the bottom of the electronic temperature control. Pull electronic temperature control from it’s mounting base. 3. Locate Hairpin switch on the control and open the Hairpin switch. (See photo, next page) Replace control in the mounting base. 4. Turn the burner switch on. If the display reads “CAL”, press the “UP” arrow until the display reads “Cnf” on the SV (orange) display. 5. Press the FUNC key until the display reads “P13” in the SV (orange) portion of the display. Using the “UP” or “DOWN” arrows, adjust the “PV” (yellow) portion of the display to read 500. This is the offset point. 6. Press the FUNC key until the display reads “P14” in the SV (orange) portion of the display. Using the “UP” or “DOWN” arrows, adjust the “PV” (yellow) portion of the display to read –50. This is the “offset value”. (continued next page) Impinger X2 – Analog Service Manual – Dom & Int’l 7. Press the “FUNC” key until the display reads “Cnf”. Shut off burner, remove control from the mounting base. Close the Hairpin switch on the control and replace the control in the mounting base. 8. Turn the burner on. Set oven temperature to 500°F and verify calibration. Allow oven to preheat for at least 30 minutes. Place temperature probe in the center of the oven, on the top conveyor. If the actual temperature differs from the displayed temperature more than 5°, the “offset value” must be adjusted (steps 2 through 7), until the proper temperature is indicated on the display. 9. Reassemble in reverse order and check system operation. HAIRPIN SWITCH THERMOCOUPLE – REPLACEMENT 1. Shut off power at main breaker. 2. Remove control box cover. 3. Disconnect thermocouple from electronic temperature control. Note wire colors for reassembly. 4. Remove oven back assy. Remove thermocouple from mounting flange in blower housing. Remove thermocouple from oven. 5. Reassemble in reverse order and check system operation. THERMOSTAT, HI-LIMIT – REPLACEMENT 1. Shut off power at main breaker. 2. Remove control box cover. 3. Disconnect all wiring from hi-limit thermostat and mark all wiring for reassembly. 4. Remove oven back assy. Remove capillary tube from mounting bracket. 5. Remove mounting nut and remove hi-limit thermostat from oven. 6. Reassemble in reverse order and check system operation. 7. NOTE: Depress reset button to insure thermostat is set for operation. TEMPERATURE REGULATION VALVE – REPLACEMENT 1. Shut off power at main breaker. 2. Shut off the gas supply to the oven and disconnect the flexible gas hose from the oven. 3. Remove control box cover. 4. Disconnect all wiring from the temperature regulation valve and the main gas valve. Mark all wiring for reassembly. 5. Remove pilot tube from gas valve. Disconnect pipe union at the burner and at the inlet side of the main gas valve. Loosen pipe clamp and remove valves and piping assembly. 6. Remove piping from old valve and reassemble in reverse order. 7. Check all gas line fittings for leaks and check system operation. GAS VALVE – REPLACEMENT 1. Shut off power at main breaker. 2. Shut off the gas supply to the oven and disconnect the flexible gas hose from the oven. 3. Remove control box cover. Impinger X2 – Analog Service Manual – Dom & Int’l 4. Disconnect all wiring from the temperature regulation valve and the main gas valve. Mark all wiring for reassembly. 5. Remove pilot tube from gas valve. Disconnect pipe unions at the burner and at the inlet side of the main gas valve. Loosen pipe clamp and remove valves and piping assembly. 6. Remove piping from old valve and reassemble in reverse order. 7. Check all gas line fittings for leaks and adjust manifold pressure on gas valve. Refer to the specification plate on the oven for proper gas manifold pressure. Check system operation. MAIN BURNER ORIFICE – REPLACEMENT 1. Shut off power at main breaker. 2. Shut off the gas supply to the oven and disconnect the flexible gas hose from the oven. 3. Remove control box cover and control box front cover. 4. Remove pilot tube from gas valve. Disconnect pipe union at burner, loosen pipe union at inlet to gas valve, loosen pipe clamp and move piping away from burner. 5. Remove two mounting nuts from burner flange and remove burner flange. 6. Remove main burner orifice from the burner flange. 7. Reassemble in reverse order. 8. Check all gas line fittings for leaks and check system operation. PILOT ORIFICE – REPLACEMENT 1. Shut off power at main breaker. 2. Shut off the gas supply to the oven and disconnect the flexible gas hose from the oven. 3. Remove control box cover and control box front cover. 4. Remove pilot tube from gas valve. Disconnect pipe unio...
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