Steca TH A603 M
Heating circuit controller (Master)
- Flexible and expandable
- Multifunction graphical LC display with backlighting
- Animated representation of the systems and operating states
- Multilingual menu navigation







Description
The Steca TH A603 M is a stand-alone heating circuit controller for regulating mixed heating circuits easily and efficiently.
To limit the degree of loss as effectively as possible while ensuring the single-room control (e.g. thermostatic valve) operates optimally, the supply temperature in the heating circuit must be continuously adjusted. The necessary supply temperature is determined by the Steca TH A603 M controller based on the ambient temperature and/or the temperature of a control room and is set by the regulated mixer.
The heating circuit can be regulated on the basis of atmospheric conditions or a control room to ensure requirements are met as effectively as possible. Both radiator and surface heating circuits are available. The many functions built into the Steca TH A603 M such as surplus management, heat quantity measurement, building frost protection, holiday reduction and screed drying ensure that system operation is both reliable and convenient.
Animated control circuits are displayed on the unit's large graphic display to visualise each of the system's operating statuses. The Steca TH A603 M includes six inputs for recording temperatures or pulse values as well as an additional Grundfos Direct Sensors™ input for combined temperature and flow rate measurement. The heating circuit pump and the mixer valve are controlled via three outputs.
Features

Product features
- Flexible and expandable
- Master-slave concept
- Compact, multipart designer casing
- High level of operational safety through fault diagnosis
- Hours-of-operation logger
- Software update possible
- Daily pump start
- Modular extensions are possible with heating circuit controllers and expansion modules
- Integrated Steca TPC 1 bus
Displays
- Multifunction graphical LC display with backlighting
- Animated representation of the systems and operating states
Operation
- Multilingual menu navigation
- Side switch for manual, auto, off
Functions
- Buffer storage tank loading
- Surplus management
- Remote control
- Heat quantity (Grundfos Direct Sensors™, pulse generator)
- Building frost protection
- Night-time reduction, night-time shut-off
- Holiday reduction
- Screed drying
Downloads
Product data sheet
Manuals
Product pics, technical drawings, etc.
- Steca TH A603 M product pic 3D · jpg, 300 DPI, high quality · 0.029 MB
- Steca TH A603 M product pic 3D · jpg, 72 DPI, web quality · 0.027 MB
- Steca TH A603 M product pic · jpg, 300 DPI, high quality · 0.025 MB
- Steca TH A603 M product pic · jpg, 72 DPI, web quality · 0.020 MB
- Steca TH A603 M product pic drawing · jpg, 300 DPI, high quality · 0.043 MB
- Steca TH A603 M product pic drawing · jpg, 72 DPI, web quality · 0.031 MB
Technical data
TH A603 M | |
---|---|
System voltage | 230 V AC (± 15 %), 50 Hz |
System voltage optional | 115 V AC (± 15 %), 60 Hz |
Own consumption | ≤ 2 W |
Number of inputs | 6 |
Inputs | 5 x temperature (Pt1000) / remote control, 1 x temperature (Pt1000) / remote control or pulse |
Additional inputs | 1 x Grundfos Direct Sensors™ (temperature / flow rate) |
Number of outputs | 3 |
Outputs | 2 x triac mixer valve control (R1, R2), max. 250 W (230 V); 1 x relay pump control (R3), max. 800 W (230 V) |
Additional output | 1 x alarm output or backup heating requirement |
Hydraulic schemes | 4 |
Ambient temperature | 0 °C … +45 °C |
Interfaces | RS-232, RS-485 (Steca TPC 1 bus) |
Degree of protection | IP 20 / DIN 40050 |
Dimensions (X x Y x Z) | 170 x 170 x 46 mm [0.00 x 0.00 x 0.00 inch] |
Weight | 450 g [0.00 oz] |