G-U RZ 25, Installation And Operating Instructions Manual, Page: 6 / 40

6
EN
RWA compact control unit
Installation and operating instructions
RZ 25 | RZ 50 | RZ 75
12.2015 | G31553 | Designed in Germany
2. Product description
2.1 General product features
The RWA compact control units RZ 25 / RZ 50 / RZ 75 are compact control units whose purpose is to
execute ventilation functions, and also smoke and heat exhaust ventilation functions in the event of fi re.
The power and emergency power supply and control electronics are located in one housing. In the event
of a power failure, an emergency power supply ensures that the smoke and heat exhaust ventilation
function is available for 72 hrs. The ventilation functions are deactivated if the power supply fails.
The control units are equipped with two monitored alarm lines to which manual call points (HSE) or
automatic detectors can be connected, or an external fi re alarm system (FAS) linked.
2.2 Functions
 
Smoke and heat exhaust ventilation function according to prEN 12101-9 and EN 12101-10 (i.e.
72 hrs operational readiness)
 
Ventilation functions with time control
 
Ventilation functions with weather control
 
Central ventilation functions through networking of individual systems
 
Linking of alarm lines
 
Integrated service and maintenance monitoring
 
Signalling of statuses to higher-level building control system (BCS)
2.3 Technical data
Power supply
 
Operating voltage 100 - 240 V, 50 - 60 Hz ± 10%
 
Protection class I
 
Maximum current consumption 2 A (RZ 25) / 3 A (RZ 50) / 2.2 A (RZ 75)
 
Output voltage 26 V controlled (adjustable between 22 V and 27 V)
 
Output current 3.2 A (RZ 25) / 6.5 A (RZ 50) / 8.4 A (RZ 75)
 
Duty ratio 40 %
Housing
 
Dimensions 296 mm x 296 mm x 112 mm
335 mm x 296 mm x 116 mm (with opt. IP mounting kit)
 
Protection type IP 20
IP 54 (with optional IP mounting kit)
 
Material: Sheet-steel, RAL 9010
Battery
 
Nominal battery voltage 2 x 12 V
 
Nominal battery capacity 2.3 Ah (RZ 25); 3.2 Ah (RZ 50 / RZ 75)
 
Battery type Lead gel
 
Battery replacement every 4 years
 
Temperature compensation of charging circuit