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General| Brand | Tekmar |
|---|---|
| Model | Universal Reset Module 422 |
| Category | Control Unit |
| Language | English |
Set the DIP switch settings prior to making adjustments to the control through the user interface.
Details the programmable settings for operating the mechanical equipment.
Describes the built-in test routine for checking control functions and individual outputs.
Describes how outdoor temperature affects heating system water temperature via a characterized heating curve.
Sets the lowest allowed boiler target temperature to protect the boiler.
Explains how differential settings prevent short cycling in on-off boilers.
Selects the type of mixing device for Mix 1, either variable speed injection or floating action.
Describes DHW mode with priority, shutting off zones if boiler cannot maintain target temp.
Describes DHW mode with priority, shutting off zones if boiler cannot maintain target temp.
Provides steps to view error messages on the control's display.
Indicates communication loss on the boiler bus, requiring wire checks.
Indicates communication loss on the Mix 1 bus, requiring wire checks.
Indicates communication loss on the Mix 2 bus, requiring wire checks.
Indicates a short circuit in the Mix 1 supply sensor, resulting in fixed output operation.
Indicates an open circuit in the Mix 1 supply sensor, resulting in fixed output operation.
Indicates a short circuit in the Mix 2 supply sensor, resulting in fixed output operation.
Indicates an open circuit in the Mix 2 supply sensor, resulting in fixed output operation.
Indicates a short circuit in the boiler sensor, disabling control and providing boiler enable.
Indicates an open circuit in the boiler sensor, disabling control and providing boiler enable.
Indicates a DIP switch conflict between Boiler and tN4 bus settings.
Indicates a DIP switch conflict between tekmar Stager and Boiler Sensor settings.
