SPC Electronic Temperature Controller

The electronic SPC controller provides precise and automatic climate control for your grow room. It monitors the temperature and automatically adjusts the speed of the connected fans to maintain the desired room climate.

There is no need to adjust the fans individually. The SPC automatically controls their speed within the user-defined minimum and maximum settings. By synchronising both fans, it ensures balanced airflow and reliable negative pressure.

The adjustable bandwidth allows you to customise the sensitivity of the temperature control. The lower the setting, the faster the controller responds to temperature fluctuations.

SPC Models with Slave Controller

The more powerful SPC MK2 versions consist of a main controller combined with an additional slave controller:

• SPC 24A MK2: SPC 8A + SPC MK2 Slave Temperature Controller 16A (00237)
• SPC 32A MK2: SPC 16A + SPC MK2 Slave Temperature Controller 16A (00237)

SPC Main Features

• 2-level fan speed adjustment
• Automatic speed control between the selected minimum and maximum settings
• Adjustable bandwidth for customised control sensitivity
• Synchronised fan operation for optimal airflow
• 1.5 m power cable
• Plug & Play – easy installation
• 5-year warranty

Scope of Delivery

• 5 m NTC temperature sensor
• Replacement fuse

Installation and Safety Instructions

Upon receiving your SPC controller, check the device for possible transport damage and ensure that all components are included.

• Never install the SPC near sources of moisture.
• Make sure the device is completely switched off before installation.
• Installation and technical maintenance must only be carried out by qualified and authorised personnel.

Operating Modes

• AUTO: The SPC operates fully automatically and controls the fans according to the measured temperature. When switched on, the fans initially run at maximum speed for a few seconds.
• 0%: The controller is switched off.
• 100%: The fans operate at full speed regardless of the automatic temperature control. This setting can be used as a manual operating mode if the automatic function fails.

Start-up and Settings

The following parameters can be individually adjusted before operation:

• Minimum ventilation: Set the desired minimum fan speed (e.g. 20%).
• Maximum ventilation: Set the desired maximum fan speed (e.g. 80%).
• Bandwidth: Define the temperature range for regulation (e.g. 2 °C).
• Target temperature: Select the desired room temperature. If the measured temperature exceeds the selected value, the SPC automatically increases fan speed.

Additional Features

• Precise and automatic climate control
• Individually adjustable minimum and maximum fan speeds
• 1.5 m cable with temperature sensor
• Simple Plug & Play installation

Important Fan Adjustment Instructions

SPC controllers are factory-configured for the most commonly used fan types. If necessary, the minimum fan speed can be adjusted using the potentiometer located to the left of the fuse holder.

Turn the potentiometer counterclockwise to reduce the minimum speed and clockwise to increase it.

Warning: Reducing the minimum fan speed too much may cause unusual operating noises. Adjust the setting carefully.

If the SPC is switched off using the switch in position 0 and then restarted, the automatic mode should be activated before returning to normal operation. This is recommended to protect the connected fans.

Note: Available in Germany only!

Technical Specifications