mcr S-THERM smoke exhaust vents: C, E, NG-A. OPERATION AND MAINTENANCE MANUAL
Page 31 of 41
For transport reasons, the electric ventilation actuator is usually not installed at the factory. It must be
installed in the console of the opening system using LB 18-2-SL13 bushing and M5x16 bolts (for E4-xxx-
230 actuator) or ST 12-1/8 bolt (for Exxx-230 actuator) or threaded pins (JMBB actuators) supplied with
the actuator. It is recommended that screws be secured against loosening with Loctite 243 or similar.
The actuator shall be provided with a T-bolt to be mounted in place of the eyebolt. The hook console
should be snapped onto the T-bolt.
It is recommended to use an automatic weather control unit in the ventilation control system, e.g. mcr
P054, for closing any open vents in situations of strong wind or rain for the purpose of protecting
property and the vents structure from damage.
Wiring diagram for ventilation electric actuator 230 VAC
a/ The E4-xxx-230 V actuator has two circuits:
• service - movement direction control (black/brown-blue
wires),
• signal (wires: 2 x white; actuator opening signal - voltage
free contact).
Fig. 55 Ventilation control
actuator (type E4-xxx-230).
Fig. 56 Bushing LB 18-2-SL13-
2xM5x16.
Fig. 57 Actuator E4-xxx-230.
b/ The actuator E xxx - 230 V has two circuits:
• service - movement direction control (black/brown-blue
wires),
• signal (wires: 2 x white; actuator opening signal - voltage
free contact).
Fig. 58 Ventilation control
actuator (type Exxx-230).
Fig. 59 Screw ST 12-1/8.
Fig. 60 Actuator Exx-230.
c/ Actuator JMBB-500-300-LA has two circuits:
• service - movement direction control (brown/black1 -
blue wires),
• signal
(wires: black2/black3; actuator opening signal -
dry contact).
Fig. 61 Actuator JMBB-500-300-LA.
br
o
wn
br
o
wn
bl
ac
k
bl
ac
k
bl
ue
bl
ue
whi
te
whi
te
whi
te
whi
te
gr
ee
n/y
el
l.
br
o
wn
bl
ac
k 1
bl
ac
k 2
bl
ac
k 3
bl
ue
