Modell: 152
This manual provides comprehensive instructions for the installation, operation, and maintenance of the Tekmar Two Stage Setpoint Control 152. This microprocessor-based control is designed to function either as a two-stage setpoint control or as two independent setpoint controls. It supports two-stage Heizung, Zwei-Stage cooling, or a combined heating/cooling interlock function. When configured for independent operation, it can manage any combination of heating or cooling devices. Please read this manual thoroughly before installation and operation to ensure proper use and optimal performance.
WARNUNG: Unsachgemäße Installation, Einstellung, Änderung, Service oder Wartung können zu Sachschäden, Verletzungen oder Tod führen. Lesen Sie die Installations- und Betriebsanleitung sorgfältig durch, bevor Sie dieses Gerät installieren oder warten.
The Tekmar 152 control features a digital display and intuitive buttons for setting parameters. It is designed for precise temperature management in HVAC systems.

Abbildung 1: Front view of the Tekmar Two Stage Setpoint Control 152. This image shows the white rectangular control unit with a grey central panel. The panel includes a digital display at the top, three buttons below it labeled "Setpoint", "Differential", and "Delay", and two arrow buttons (up and down) for navigation. The Tekmar logo and model number "Two Stage Setpoint Control 152" are also visible.
Before beginning installation, ensure all power to the HVAC system is disconnected at the main breaker.
Refer to the wiring diagram provided with the product packaging for specific connections. General steps include:
Note: Professional installation is recommended to ensure compliance with all electrical codes and optimal system performance.
The Tekmar 152 control is operated using the three main buttons and the up/down arrow buttons on the front panel.
The differential setting determines the temperature band around the setpoint before the control activates or deactivates a stage.
The delay setting prevents rapid cycling of equipment, extending its lifespan.
The operating mode (two-stage or independent) is typically configured during initial setup by a qualified technician. Consult your installer or the full technical manual for details on changing this mode.
The Tekmar 152 control requires minimal maintenance.
Note: For any internal maintenance or repairs, contact a qualified service technician.
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Das Bedienfeld ist leer. | Keine Stromversorgung | Check circuit breaker and wiring connections to the control. |
| System not responding to setpoint | Incorrect setpoint/differential; Sensor fault; Wiring issue | Verify setpoint and differential settings. Check sensor wiring and sensor operation. Inspect output wiring. |
| Equipment cycles too frequently | Differential too small; Delay setting too short | Increase the differential setting. Increase the delay time. |
| Ungenaue Temperaturwerte | Faulty sensor; Sensor placement issue | Check sensor for damage. Relocate sensor if it's in a draft or near a heat source. |
If the problem persists after attempting these solutions, contact a qualified HVAC technician or Tekmar customer support.
For warranty information, please refer to the documentation included with your product or visit the official Tekmar webWebsite.
For technical support or service inquiries, please contact Tekmar customer service. Contact details can typically be found on the manufacturer's webStandort oder Produktverpackung.