Description Of The Device - Tech Controllers ST-979 User Manual

ST-979 user's manual

Description of the device

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ST-979 controller is intended to be used with pellet-fired CH boilers with a fuel feeder and a supply
air fan. Thanks to advanced software, the regulator fulfils a wide range of functions:
 Controlling the igniter
 Controlling the feeder and the internal feeder
 Controlling the grate and the ash remover
 Controlling the supply air fan
 Controlling the central heating pump (CH)
 Smooth control of two mixing valves
 Controlling DHW pump
 Controlling two additional pumps (additional CH, DHW, floor, circulating or CH boiler
protection pump)
 Weather-based control
 Weekly control
 Cooperation with a room regulator offering traditional (two-state) communication or RS
communication
 Possibility of connecting ST-65 GSM module which enables the user to control certain
functions via a mobile phone
 Possibility of connecting ST-505 Ethernet module which enables the user to view certain
parameters and control certain functions via the Internet
 Possibility of connecting two additional valve-controlling modules (e.g. ST-61 or ST-431N)
which enable the user to control two additional valves
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