For nearly three decades, tekmar has been providing zoning and control solutions for a variety of heating and cooling applications. Products made by tekmar can improve the efficiency and comfort delivered by almost any system. The tekmar 420 Boiler Reset Module controls a single water temperature. It is equipped to operate a system pump; a DHW pump; and a modulating, or on/off, boiler in order to satisfy heating, DHW, and setpoint demands in a hydronic system. The 420 Boiler Reset Module is tekmarNet 4 compatible, and it possesses several energy saving features, including outdoor temperature reset, to make your system more economical.
Synchronize Your Zones, Save Energy
This tekmar control allows your tekmarNet 4 thermostats to communicate with each other. Communication means that your thermostats can synchronize their cycles, when possible, instead of operating independently. This minimizes short cycling, saves energy, and reduces wear and tear on your system.
The tekmar 420 monitors the outdoor temperature and the water temperature at a point in your system. Using this information it is able to determine the most appropriate supply temperature and boiler firing rate. By constantly monitoring conditions and making continuous adjustments, the tekmar 420 delivers unparalleled comfort and efficiency.
Warm Weather Shutdown
A warm weather shut down temperature may be programmed to prevent your system from running when it in unnecessary or untenable.
Automates Boiler Differential
The tekmar 420 Boiler Reset Module can automatically adjust your boiler differential to discourage short cycling.
- (1) tekmar 420 Boiler Reset Module
- (1) tekmar 082 Universal Sensor
- (1) tekmar 070 Outdoor Sensor
This control must be mounted within a tekmarNet Zone or Power Manager for power. It does not include an enclosure.