Installation and fixation of preheating oven body

Preheat Oven Installation Process

I. Unpacking Inspection and Accessories Inventory

Equipment Unpacking

Remove the packaging box, remove the oven, accessories, and manual, and inspect the exterior for shipping damage (such as dents or scratches).

Check the accessories list (such as shelves, sealing strips, thermostat, power cord, etc.) to ensure everything is missing.

Environment Verification

The installation location must be well-ventilated and away from flammable and explosive items, water sources, and sources of strong electromagnetic interference.

The floor must be flat and firm, ensuring the oven is level and stable after placement (a level can be used for assistance).

II. Main Installation and Securing

Placing the Oven

Move the oven to the desired location and adjust the bottom feet or spacers to ensure the unit is level and stable.

If securing is required, use expansion bolts to attach the oven to the floor or wall (depending on your needs).

Sealing Strip Installation

Check the door frame sealing strip for integrity. Replace any damaged strips.

Fit the sealing strip evenly into the door frame groove, ensuring there are no wrinkles or gaps to prevent heat leakage. 3. Electrical Connection and Safety Check

Power Connection

Confirm that the power supply voltage matches the rated voltage of the oven (e.g., 220V/380V) and that a cable that meets the specifications is used.

Connect the power cord to the rear terminal block of the oven, ensuring that the connection is secure and that the ground wire is reliably connected.

Thermostat and Sensor Installation

Install the temperature sensor (e.g., thermocouple or RTD), ensuring that the probe is located in the center of the oven chamber.

Connect the thermostat and sensor, and set the temperature parameters (e.g., temperature range, alarm threshold) according to the user manual.

Safety Check

Check that all wires are exposed to avoid short circuits.

Confirm that the oven casing is properly grounded to prevent electrical shock.

4. Trial Run and Commissioning

No-Load Test

Close the oven door, turn on the power, set the target temperature (e.g., 50°C), and observe the temperature rise rate and temperature stability.

Check that the fan is running smoothly, with no abnormal noise or vibration.

Temperature Uniformity Calibration

Place temperature recorders at different locations within the oven. After the oven reaches the set temperature, record the temperature difference at each point.

If the temperature difference exceeds the allowable range (e.g., ±5°C), adjust the fan speed or heater power and recalibrate.

Overtemperature Protection Test

Set an alarm value higher than the target temperature (e.g., if the target is 100°C, set the alarm value to 110°C).

Observe whether the oven automatically shuts off and issues an alarm when overheating to ensure proper safety features.

V. Acceptance and Routine Maintenance

Acceptance Criteria

The temperature fluctuation range meets the requirements (e.g., ±1°C) and uniformity meets the standards.

Good sealing with no heat leakage; the electrical system operates normally and presents no safety hazards.

Routine Maintenance

Regularly clean the oven interior and inspect the heater, fan, and other components for dust accumulation.

Check the thermostat accuracy monthly and have it calibrated annually by a professional.

Installation Precautions

Prohibitions:

Do not bake flammable, explosive, or corrosive items in the oven.

Do not overload the device (e.g., stacking too many items or blocking ventilation holes).

Emergency Measures:

If the device emits smoke or an odor, immediately disconnect the power cord and contact customer service.

Regularly check the overtemperature protection device to ensure its reliability.