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Technical Manual
RZ-24 Central
When installing the components, you have to adhere to the respective
operating and mounting instructions and the directives for hazardous
areas.
3. Components of the DICTATOR Hold-Open System
3a) Version Without
Door Operator for
Opening
The explosion-proof DICTATOR hold-open system is made up of maxi-
mum 20 smoke or heat detectors and up to 12 explosion-proof magnets
(ATTENTION: consider the maximum output load of the RZ-24 central!).
Components:
- RZ-24 central unit with power supply, part no. 040553
- Shunt safety barrier: Zener barrier Z779, part no. 040589
- RM 3000IS EX smoke detector or WM 3000IS EX heat detector with
base, part no. 040881SET or 040886SET
- Resistor 3.9 kΩ(included in the scope of delivery of the RZ-24 central)
- Explosion-proof magnet (DICTATOR electromagnets EM GD 50 EX or
EM GD 70 EX, either with connection cable or terminal box, or EM
GD 70 R 39 I, Ex2) - see separate manual
- Ex-proof hand release switch, part no. 700232, and outside the
hazardous area (upstream of the Zener barrier) hand release switch,
part no. 040005, or the key on the RZ-24 central
- Gas warning system (the need to be clarified on the basis of the on-site
requirements)
In order to open a fire protection door automatically an approved,
explosion-proof door operator can be used. In explosion-proof hold-open
systems the magnets are generally installed only in the OPEN position
of the door and are not integrated in the door operator.
In the case of an alarm it has absolutely to be made sure that the door
closes and is not blocked due to an error of the control system. Therefore,
in such a case, the RZ-24 central automatically switches off the control
system of the ex-proof door operator.
Components:
- RZ-24 central unit with power supply, part no. 040553
- Shunt safety barrier: Zener barrier Z779, part no. 040589
- RM 3000IS EX smoke detector or WM 3000IS EX heat detector with
base, part no. 040881SET or 040886SET
- Resistor 3.9 kΩ(included in the scope of delivery of the RZ-24 central)
- Explosion-proof magnet (DICTATOR electromagnets EM GD 50 EX or
EM GD 70 EX, either with connection cable or terminal box, or EM
GD 70 R 39 I, Ex2) - see separate manual
- Ex-proof hand release switch, part no. 700232, and outside the ha-
zardous area (upstream of the Zener barrier) hand release switch, part
no. 040005, or the key on the RZ-24 central
- Gas warning system (the need to be clarified on the basis of the on-site
requirements)
- Ex-proof door operator for opening the door by motor
- Door operator controller
3b) Version With Door
Operator for
Opening
