TECH ST-402N PWM, User Manual, Page: 27 / 32

Tech
- 27 -
Table of contents
I. Safety .............................................................................................................................. 2
II. Application .................................................................................................................... 3
III. Principle Of operation ..................................................................................................... 3
IV. User Menu ......................................................................................................................... 4
IV.a) Home Page .................................................................................................................. 4
IV.b) Main Menu – Flowchart .................................................................................................. 5
IV.c) Operation Mode ............................................................................................................ 5
IV.c.1) Automatic Operation ................................................................................................ 5
IV.c.2) Collector Defrosting ................................................................................................. 5
IV.c.3) Holiday Mode .......................................................................................................... 6
IV.c.4) Anti-Legionella ........................................................................................................ 6
IV.c.5) Manual Operation .................................................................................................... 6
IV.d) Timer .......................................................................................................................... 6
IV.e) Date ........................................................................................................................... 6
IV.f) Ethernet Module ............................................................................................................ 6
IV.g) GSM Module ................................................................................................................. 7
IV.h) Statistics ..................................................................................................................... 7
IV.h.1) Gain ...................................................................................................................... 7
IV.h.2) Collector Overheat .................................................................................................. 7
IV.h.3) Power Supply Failures .............................................................................................. 7
IV.i) Backlight ...................................................................................................................... 7
IV.j) Display Contrast ............................................................................................................ 7
IV.k) Language .................................................................................................................... 7
IV.l) Information .................................................................................................................. 7
IV.m) Factory Settings .......................................................................................................... 8
V. Service Menu ................................................................................................................ 8
V.a) Installation Scheme .................................................................................................. 10
V.a.1) Scheme 1/17 - Basic ........................................................................................... 10
V.a.2) Scheme 2/17 – One Tank - Order ......................................................................... 10
V.a.3) Scheme 3/17 – Two Collectors, Two Pumps ............................................................ 10
V.a.4) Scheme 4/17 – Two Collectors, Valve .................................................................... 11
V.a.5) Scheme 5/17 – Reheating with Boiler .................................................................... 11
V.a.6) Scheme 6/17 – Two Tanks, Valve .......................................................................... 11
V.a.7) Scheme 7/17 – Two Tanks, Two Pumps .................................................................. 12
V.a.8) Scheme 8/17 – Two Tanks - Order ........................................................................ 12
V.a.9) Scheme 9/17 – Heat Exchanger ............................................................................ 12
V.a.10) Scheme 10/17 – Double Function Furnace .......................................................... 13
V.a.11) Scheme 11/17 – Reheating the CH Return .......................................................... 13