6
/15
Temperature calibration of thermosensitive element for auto-
matic damper closing
72 °C±7 °C (Standard)
95 °C±9 °C (On request).
ELEC TRICAL CONNEC TIONS
Electrical wiring
Electrical connections must be done by qualified and trained people.
Switch off the power supply before starting any work on the electric
elements. Never switch on the power supply during electrical con-
nections.
Manual and compact manual
S1-25 electric board (S2 optional) for blade position microswitches (manual)
S1-25-B electric board (S2 optional) for blade position microswitches (compact
manual)
1 Microswitch contacts for blade position
FCU Closed blade contact
DCU Open blade contact
NO Normally open
C Common
NF Normally closed
Manual with magnet - MR/MI version (the magnet is powered
using 24 V DC/48 V DC through S0-25 electric board)
S0-25 electronic board (S2 optional) for 24V DC / 48V DC power supply. Blade
position microswitches included
1 Microswitch contacts for blade position
2 Magnet power supply contacts. 24V DC or 48V DC. Keep to the polarity for
input magnet
MAG
Magnet power supply
FCU Closed blade contact
DCU Open blade contact
NO Normally open
C Common
NF Normally closed
S2 microswitches position for manual control and magnetic
control
1. The fire damper's blade is open (the air flow is allowed)
2. The fire damper's blade is closed (the air flow is not allowed)
FCU Closed blade contact
DCU Open blade contact
Motorized version
Belimo servomotor:
BFL24T, BFN24T, BF24T, BFL230T, BFN230T, BF230T.
Siemens servomotor:
GRA126, GNA126, GGA126.
