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Product Name	4-Stage Poultry House Temperature Controller
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Product Overview	The 4-Stage Poultry House Temperature Controller is a compact livestock climate control unit designed for automatic staged ventilation and cooling management in poultry houses. It continuously monitors house temperature through a remote temperature sensor and activates connected ventilation or cooling equipment according to programmed setpoints. A typical four-stage configuration can be arranged for three fan groups and one cooling stage. The first ventilation stage can operate in minimum ventilation timer mode, helping maintain basic fresh-air exchange during cool weather or low ventilation demand. An optional humidity input can also be incorporated to improve cooling management in humid farm environments. The controller is suitable for broiler houses, layer houses, breeder houses and other livestock buildings requiring straightforward, dependable environmental control without a complex central automation system.
Key Features	Four-stage automatic environmental control for poultry production buildings. Suitable for staged exhaust fans, minimum ventilation and evaporative or spray cooling equipment. Three ventilation stages plus one cooling stage can be configured for common poultry-house applications. Minimum ventilation timer function supports intermittent fan operation during low ventilation demand. Independent cooling timer and adjustable operating setpoints. Remote temperature sensor for representative house-temperature monitoring. Optional 0-10V humidity sensor input for humidity-based cooling limitation. Digital display provides clear temperature and operating information. Power-fail-protected memory helps retain programmed settings after power interruption. Compact wall-mounted structure simplifies integration into poultry-house electrical control systems.
Structural Components	Controller Enclosure: Protective housing for the electronic control board and terminals. Digital Display: Shows measured temperature and programming information. Programming Keys: Used for setpoint adjustment, timer configuration and controller setup. Stage Indicators: LED indicators show the operating status of individual control stages. Temperature Sensor Input: Connection for a remote livestock-house temperature sensor. Humidity Sensor Interface: Optional 0-10V input for relative-humidity monitoring. Relay Outputs: Dry-contact outputs for fan groups and cooling equipment. Analog Output: 0-10V output available for compatible external equipment. Power and Wiring Terminals: Internal connections for power supply, sensors and controlled devices.
Working Principle	The controller receives real-time temperature information from the remote sensor installed inside the poultry house. The measured value is continuously compared with programmed stage setpoints. As house temperature rises, the controller progressively activates the configured fan stages. The first fan group may operate on an adjustable minimum ventilation on/off cycle before continuous ventilation is required. Additional fan groups are activated when higher temperature thresholds are reached. When the cooling setpoint is reached, the fourth stage can activate cooling equipment such as an evaporative cooling pump or other compatible cooling device. When an optional humidity sensor is installed, cooling can be interrupted when relative humidity rises above the programmed limit, helping prevent excessive moisture accumulation inside the poultry house.
Technical Specifications	Control Type 4-stage temperature / climate controller Typical Stage Configuration 3 fan groups + 1 cooling stage Temperature Input 1 remote temperature sensor Humidity Input 1 remote 0-10V humidity sensor, optional Relay Outputs 4 dry change-over contacts Relay Contact Rating Up to 220V / 2A per referenced configuration Analog Output 1 × 0-10V Power Supply 220V for referenced configuration; other requirements available upon request Display 4-digit digital display Display Resolution 0.1°C Temperature Accuracy Approximately ±0.2°C for referenced configuration Minimum Ventilation Adjustable on/off timer function Memory Power-fail-protected parameter memory Sensor Calibration Automatic sensor calibration supported in referenced configuration Controller Configuration Customizable according to project requirements
Applications	Commercial broiler houses Layer and breeder poultry houses Pullet rearing buildings Small and medium poultry ventilation systems Steel-structure poultry buildings Minimum ventilation fan control Multi-stage exhaust ventilation systems Evaporative cooling and water-pump control Livestock-house renovation and climate-control upgrading projects Farm projects requiring simple standalone environmental control
Customization Options	Controller configuration can be adapted according to poultry-house layout, ventilation equipment and local project requirements. Control logic customizable according to project requirements. Fan and cooling stage configuration available upon request. Sensor configuration available according to farm requirements. Electrical interface and control-panel integration can be coordinated with the project design. System design can be matched with exhaust fans, cooling pads, cooling pumps and related livestock ventilation equipment. Solutions can be designed according to local climate and farm conditions.
Installation & Maintenance	The controller is normally installed on a wall or electrical control panel in a dry, accessible service area. The temperature sensor should be positioned in the representative animal zone, away from direct sunlight, heaters, cooling-pad discharge, doors and other locations that may distort the actual house temperature. Fan stages and cooling equipment should be connected according to the electrical wiring diagram and the rated capacity of the relay outputs. High-power motors should be controlled through correctly sized contactors or motor-control equipment rather than connected directly when load requirements exceed the controller relay rating. Routine maintenance includes checking electrical terminals, inspecting sensor cables, cleaning dust from the enclosure, confirming sensor readings and testing fan and cooling stage operation before each production cycle.
Project Cases	Broiler House Minimum Ventilation: The first fan stage operates intermittently using the minimum ventilation timer, while additional fan stages are activated progressively as indoor temperature increases. Hot-Climate Poultry House: Three staged exhaust fan groups are combined with a cooling-pump output to increase ventilation capacity and activate evaporative cooling during high-temperature periods. Poultry House Renovation: The controller can be integrated into existing fan and cooling systems to replace basic manual switching with automatic temperature-based stage control. Final equipment selection and control logic should be designed according to poultry type, stocking density, building dimensions, local climate and installed ventilation capacity.
Product FAQ	Q: What equipment can the four stages control? A: A common arrangement uses three stages for exhaust-fan groups and one stage for cooling equipment. Other control arrangements can be discussed according to project requirements. Q: Does the controller support minimum ventilation? A: Yes. The first ventilation stage can use an adjustable on/off timer for minimum ventilation operation. Q: Can humidity be monitored? A: An optional 0-10V humidity sensor can be connected in the referenced configuration. Humidity information can be used to limit cooling operation when humidity exceeds a programmed level. Q: Can the controller operate cooling pads? A: The cooling stage can control compatible cooling equipment such as a cooling-pump contactor. Final electrical design should match equipment voltage and load requirements. Q: Is the controller suitable for large poultry houses? A: It is best suited to projects requiring relatively simple four-stage climate control. Large tunnel-ventilated houses with many fan groups, inlets, heating zones and environmental sensors may require a higher-capacity livestock climate controller. Q: Can the controller specification be customized? A: Yes. Configuration, sensors, electrical integration and related control-panel solutions can be customized according to project requirements.
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