Baxi QAA73.110, Basic Documentation

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Siemens Building Technologies Basic Documentation QAA73.110 Room unit CE1P2284en
HVAC Products Error! Style not defined. 19.06.2002
8 Technical data
OpenTherm Bus
Terminals 2-wire (interchangeable)
Cable length max. 50 m
Cable resistance max. 2 x 5
Ω
Power consumption 30 mW (typically)
Safety class III to EN 60 730
when mounted in compliance with
regulations
Degree of protection of housing IP 20 to EN 60529
Contamination environment to EN 60730
Operation IEC 721-3-3 class 3K 5
Temperatures 0..0.50 °C
Humidity < 85 % r.h.
Transport IEC 721-3-2 class 2K 3
Temperatures -25...70 °C
Humidity < 95 % r.h.
Storage IEC 721-3-1 class 1K 3
Temperatures –25...70 °C
Humidity < 95 % r.h.
conformity
EMC directive 89/336/EEC
– Immunity EN 50 082-1, EN 50 082-2
– Emissions EN 50 081-1, EN 50 081-2
Low voltage directive 73/23/EEC
– Electrical safety EN 60 730-1, EN 60 730-2-9
Measuring range 0..00.45 °C
Backup of time switch min. 12 h
Software class A to EN 60 730
Weight approx. 0.17 kg
Operating voltage
Protection
Environmental conditions
Standards
Room sensor
Other features