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EGULUS - SRS 3 Controller - www.re
ulus.
General instructions
These installation and operating instructions contain basic instructions and important information regarding
safety, installation, commissioning, maintenance and the optimal use of the unit.
Therefore these instructions must be read completely and understood by the installation technician/specialist
and by the system user before installing, commissioning and operating the unit.
The installation shall be done in compliance with valid standards and rules. The controller does not under any
circumstances replace any safety devices (e.g. safety valve, air vent valve etc.) to be installed into a solar
circuit!
Installation of the unit may only be carried out by specialists who possess the appropriate training.
For the user:
Make sure that the specialist gives you detailed information on the function and operation of the controller.
Always keep these instructions in the vicinity of the controller.
A - DESCRIPTION AND INSTALLATION
A 1 - Specification
Electric specification:
Mains voltage 230 V ~ ±10 %
Mains frequency 50-60 Hz
Power consumption 2 VA
Switched power
Electronic relay R1 min. 20 W, max. 120 W for AC3
Mechanical relay R2 max. 460 VA for AC1 / 185 W for AC3
(AC1 - resistive load, AC3 - inductive load)
Internal fuse 2A slow-blow, 250 V
El. protection IP40
Protection class II
Sensor inputs 3× Pt1000
Measuring range -40 °C to 300 °C
Permissible ambient conditions:
Ambient temperature
for controller operation 0-40 °C
for transport/storage 0-60 °C
Air humidity
for controller operation max. 85 % rel. humidity at 25 °C
for transport/storage no moisture condensation permitted
Other specifications and dimensions:
Housing design 2-part, ABS plastic
Installation methods wall installation, optionally panel installation
Overall dimensions 163 × 110 × 52 mm
Aperture installation dimensions 157 × 106 × 31 mm
Display fully graphical display, 128 × 64 dots
Light diode multicolour
Operation 4 entry keys
Optional temperature sensors:
Immersion sensor Pt1000, with lead TT/S2 up to 180 °C
Immersion sensor Pt1000, with lead TT/P4 up to 95 °C
Pipe-mounted sensor Pt1000, pipe-mounted sensor TR/P4 up to 95 °C
Sensor leads min. 2× 0,75 mm
2
, extendable up to 30m max.
Temperature resistance table for Pt1000 sensors:
°C 0 102030405060708090100
Ω 1000 1039 1077 1116 1155 1194 1232 1270 1308 1347 1385
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