EXi-F
positive pressure smoke control system
„MERCOR” S.A. –
Specifications are subject to change without notice. Version DTR_EXIF_EN_20220516
Page
11
/ 28
Table 1.
mcr Omega control unit specifications
Main supply voltage:
400 V AC +10%. –15%, 50 Hz
Reserve power supply*
Emergency power supply in the building
Certified fire protection power supplies
Internal ATS (optional).
Backup power:
Lead-acid batteries, AGM
Battery capacity:
2,2Ah-40Ah
Reserve power supply time:
72h
Alarm configuration:
Single stage (2nd stage)
Enclosure protection rating:
IP 54
Environmental class:
III (with temperature extension up to -25°C)
Operating temperature range:
-25
0
C +75
0
C
Unit working voltage:
22.5 V ..... 32 V AC (24 V at 20
0
C)
Enclosure material:
Powder coated or stainless steel
Dimensions (L x W x H)
Type series:
from 300x200x150 up to 1200x2000x300
Environmental conditions:
-
temperature range from -25
0
C up to +75
0
C (-25
0
C
with heating, +75
0
C with internal ventilation)
-
relative humidity:90%
-
protection (e.g. by roofing) against precipitation and
solar radiation is required in external use
*
power supply and control of smoke control devices and fire divisions which require auxiliary power supply as per relevant regulations
Control unit components depending on the system size:
automatics and control block with advanced microprocessor monitoring and control modules
(mcr MMS) and intelligent mcr ICR positive pressure regulator module,
power supply block (power supply with batteries),
frequency converter (inverter),
overcurrent protection and three-phase contactors,
mcr ICR positive pressure regulator (compatible with mcr ICS)
The unit monitors fan supply line continuity also at standstills, interruptions or short-circuit.
mcr ICR
positive pressure regulator
controls fan speed via a three-phase inverter to maintain
set positive pressure (20 – 80 Pa) in the protected area. Measured pressure signal is transmitted from
the differential pressure sensor to the regulator via a distributed network. To determine the building
model, the regulator uses special algorithm for precision control in the environment with unknown or
impossible to determine characteristics.
Fig. 7.
mcr ICR pressure regulator - general view
