TECH ST-85, User Manual

ST-85 – USER'S MANUAL

Table of Contents

I.  Description.......................................................................................5
II. Regulator Functionality......................................................................8

II.a) Main Page..................................................................................8
II.b) Changing the central heating and hot consumption water setpoint 
temperature...................................................................................... 9
II.c) Firing up.................................................................................... 9
II.d) Manual Mode............................................................................10
II.e) Fuel Type.................................................................................11
II.f) Central Heating Pump Activation..................................................11
II.g) H.C.W. Pump  Activation............................................................11
II.h) Operation Mode.........................................................................12

II.h.1) House Heating.....................................................................12
II.h.2) H.C.W. Priority....................................................................12
II.h.3) Parallel Pumps.....................................................................13
II.h.4) Summer Mode.....................................................................13

II.i) Main Screen...............................................................................14
II.j) Language..................................................................................15
II.k) Factory Settings........................................................................15
II.l) Fitting parameters......................................................................15

III. Protections....................................................................................16

III.a) Thermal protection...................................................................16
III.b) Automatic Sensor Check............................................................16
III.c) Temperature Protection.............................................................17
III.d) Anti-Boil Protection...................................................................17
III.e) Monitoring the flue gas outlet temperature..................................18
III.f) Fuse........................................................................................ 18

IV. Maintenance..................................................................................18
V. Assembly........................................................................................19

V.a) Cable Connection Diagram for Controller.......................................20

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