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Table of Contents
Related Manuals for Tech Controllers ST-81
Summary of Contents for Tech Controllers ST-81
- Page 1 ST-81 v 81.035...
- Page 2 The product was marked with CE for the first time: on July 4, 2007. The company TECH, based in Wieprz 1047A, 34-122 Wieprz, declares with complete liability that the temperature regulator ST-81 230V, 50Hz meets the requirements of the Regulation of the Minister of...
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Page 3: Safety
ST-81 v 81.035 Safety Before using the device for the first time the user should read the following regulations carefully. Not obeying the rules included in this manual may lead to personal injuries and device damage. This manual should be stored carefully. -
Page 4: Principle Of Operation
Incorrect connection of cables may damage the regulator! The ST-81 controller needs to be connected to the boiler during installation so that there is no external access to the cable installation strip. The rear part of the controller contains couplings to which the sensors as well as devices operated by... - Page 5 ST-81 v 81.035 General Diagram - the diagram does not replace the design of a CH system. It is intended for the demonstration of the controller's expansion possibility. The presented diagram of the heating system does not contain elements cutting-off and protecting for the execution of professional installation.
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Page 6: Iv. Operating The Controller
User’s manual IV. Operating the Controller 1. PLUS Button - changing the pre-set temperature from the main screen view, after entering the controller's menu the button is used to increase the work settings. 2. MINUS Button - changing the pre-set temperature from the main screen view, after entering the controller's menu the button is used to decrease the work settings. -
Page 7: Regulator Functions - Main Menu
ST-81 v 81.035 Regulator Functions – Main Menu Due to the multifunctional nature of the controller, the menu is divided into the Main Menu and the Servicing Menu. The user sets basic working parameters in the Main Menu: pre-set temperatures, modes of operation etc. -
Page 8: V.c) Airflow Power
User’s manual The Airflow Power, where the user has the option to define any Alarm rotational speed of the fan in manual operation, is additionally available. Airflow Power V.c) This function controls the speed of fan operation. The 80 % regulation range varies depending on the program (from 1 to 6 or from 1% to 100%), and it may be assumed that these are Airflow power... -
Page 9: V.g) Ch Hysteresis (Of The Boiler)
ST-81 v 81.035 CH Hysteresis (of the boiler) V.g) This option is used to define the hysteresis of pre-set temperature. It is the difference between the temperature of 2⁰C entering into the support cycle, and the temperature when Boiler hysteresis returning to the operation cycle (e.g. -
Page 10: Parallel Pumps
User’s manual In this mode, when the boiler is still insufficiently heated, the fan's operation is limited to a temperature of 62°C on the boiler because this prevents the boiler from overheating. The DHW priority function consists in heating first the hot utility water and then heating up the water in the radiators. -
Page 11: Servicing Functions For Temperature Regulator St-81
From this moment, the user's controller parameters may be defined once again. VI. Servicing Functions for Temperature Regulator ST-81 In order to enter the controller's servicing functions, the user should switch the controller off using the mains switch, then press the EXIT button and switch the controller on holding the button. -
Page 12: Vi.c) Firing-Up Alarm Time
User’s manual Firing-Up Alarm Time VI.c) This option is used to define the maximum boiler firing-up time. If the temperature in the boiler does not increase above 30 minutes the damping threshold temperature within this time, the firing- Firing-up alarm up alarm will be displayed. -
Page 13: Vi.j) Emergency Ch Pump Activatio
ST-81 v 81.035 Emergency CH Pump Activatio VI.j) This option is active only in the boilers priority and summer modes. This setting enables the user to define the emergency 78⁰C temperature when the CH pump is activated in order to Emerg CH pump act distribute hot water in the system. -
Page 14: Vii.c) Temperature Protection
Higher amperage fuse should not be used as it may damage the controller. VIII. Maintenance Before and during the heating season, the ST-81 controller should be checked for the condition of its cables. The user should also check if the controller is properly mounted and clean it if dusty or dirty. -
Page 15: Table Of Contents
V.k.4) Room Regulator ...................... 10 V.l) Language * ......................10 V.m) Factory Settings ...................... 11 V.n) Servicing Functions for Temperature Regulator ST-81 ............. 11 Alarm Sound ......................11 VI.a) Damping ........................ 11 VI.b) Firing-Up Alarm Time ....................12 VI.c) Minimum Pre-Set CH ....................12 VI.d) - Page 16 User’s manual...
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