Dictator RZ-24 User manual

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Technical Manual

RZ-24 Central

Technical Manual

RZ-24 Central

Page 07.021.01

You can find the current version of our manual on our website under «Downloads»:

https://en.dictator.de/products/hold-open-systems-fire-protection-doors/central-units/central-unit-rz-24/

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Technical Manual

RZ-24 Central

Table of Contents

Page 07.021.02

Page

1. Safety Instructions: General and Explosion Protection 07.021.03

2. General Regulations for Hold-Open Systems 07.021.05

a) Demands

b) Operational life

3. Components of the DICTATOR hold-open system 07.021.06

a) Hazardous area without door operator

b) Hazardous area with door operator for opening

c) Non-hazardous area without door operator 07.021.07

d) Non-hazardous area with door operator for opening

4. Mounting of the RZ-24 central 07.021.08

a) Choosing the place of installation

b) Opening the casing

c) Fixing the RZ-24 07.021.09

5. Electrical connection and installation of an ex-proof

hold-open system with RZ-24 07.021.10

a) Technical data RZ-24

b) Block diagram 07.021.11

c) Wiring diagram RZ-24 without door operator

d) Wiring diagram RZ-24 with door operator 07.021.13

e) Cable installation 07.021.14

6. Electrical connection and installation of a not ex-proof hold-open

system with RZ-24 07.021.15

a) Block diagram

b) Wiring diagram RZ-24 without door drive

c) Wiring diagram RZ-24 with door drive 07.021.16

7. Placing into operation of the hold-open system 07.021.17

a) Steps for placing into operation

b) Functional test, approval

8. Functioning and adjusting instructions for RZ-24 central 07.021.18

a) Functions of the RZ-24

b) Deactivation of the integrated horn

9. Error list 07.021.19

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Technical Manual

RZ-24 Central

Protronic

Z-6.510-2428

VDS

Page 07.021.03

1) General Safety Instructions

General Safety

Instructions

The RZ-24 central is a power supply with integrated tripping device for

hold-open systems on ﬁre doors, smoke evacuation ﬂaps etc

The RZ-24 is also the central of the DICTATOR hold-open system in

hazardous areas. The central itself is not protected against explosion and

therefore has to be mounted outside the hazardous area.

When installing the ex-proof hold-open system, it is imperative to observe

the instructions for implementing the 2014/34/EU directive and the safety

instructions. Furthermore the regulations, especially regardingthe marking,

execution, approval, operation and maintenance, corresponding to the

type approval Z-6.500-2443 of 17 October 19 have to be met.

Only trained professionals may effect the installation; e.g. only a qualiﬁed

electrical technician may connect the power supply to the mains. To the

electrical installation following the power supply ( safety extra-low voltage

24 VDC) apply the acknowledged technical regulations for electrical

installations. In the hazardous area all the demands applying to this area

have to be adhered to (type of cables, marking of cables for intrinsical

electric circuits, equipotential bonding etc.).

Only a professional trained by DICTATOR with an approval authorisation

may approve the system.

The operating company has to determine and document the hazardous

zones according to the explosion protection document where the ex-proof

hold-open system shall be installed.

During installation therespective ignition protection type ofevery individual

component has to be respected.

The RZ-24 central and the Zener barrier may solely be

installed outside the hazardous area. Only exception is

when they are supplied in a pressure capsulated, ex-proof

housing.

Ignition Protection Type

The relevant regulations must be observed for all work.

The operation of all components is only permitted in undamaged

condition.

The accident prevention regulations have to be respected.

Note to this manual Since the RZ-24 central is used in both non-EX hold-open systems

and EX hold-open systems, this manual contains important

information on both areas of application. Information relevant

only for the EX area is marked with .

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Technical Manual

RZ-24 Central

Page 07.021.04

General Safety Instructions - cont.

When connecting the components of the ex-proof hold-open system,

besides the generally accepted codes of practice you must respect in

particular the on-site requirements, the Equipment and Product

Safety Act, the Ordinance on Hazardous Substances, the Law

on operational safety and other relevant prescriptions for

installations in hazardous areas.

Outside the hazardous area you can use the usual method for connection.

However, inside the hazardous area you may only use certiﬁcated

material, e.g. EEx-e terminals and EEx-e terminal boxes. When using

approved electromagnets with IP 65 terminal, please contact our technical

customer service department.

The connection cables have to be installed in such a way that they cannot

be moved and are sufﬁciently protected against damage. Also here you

strictly have to adhere to the requirements of the respective operating

company. All components of the system, the cables and their connections

have to be clearly marked by the installation contractor.

If nothing else is required on site or by special regulations, the following

speciﬁcations have to be respected:

- All works on current circuits may only be effected in the de-

energized state.

- Current circuits of the ignition protection type "m"

(electromagnets): Here it is imperative to respect the demands for

the correct connection of the electromagnets (e.g. every magnet has

to be fused individually, the fuse being upstream of the magnet). Apart

from that apply the requirements of a "normal" installation.

- Current circuits of the ignition protection type "i" (intrinsic

safety) (smoke detectors): Intrinsically safe current circuits have

spatially to be separated from not intrinsically safe ones (separate

laying of cables!). Intrinsically safe current circuits have to marked as

such. When using colour for marking, the cables have to be light blue.

The marking should also include the cable ducts, possible connection

boxes etc.

- Equipotential bonding conductor: The cable (yellow/green) has

to have a cross section of 4 mm2.

All defect ex-proof components MUST be sent to the factory for repair. An

exchange of the components is possible, an on-site repair unfortunately

not. If the damage of one or more components of an installation might

cause un unsafe state, the complete system has to be shut down until it

has been repaired and is safe again.

Installation, Connection

Instructions for Wiring

Ignition Protection Type

- cont. None of the used components may be modiﬁed without written consent

of the manufacturer. This applies in particular to the connection cables

of the magnets. If, for example, the connection cables are shortened,

consultation with our technical customer service department is mandatory

in advance.

Repairs

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Technical Manual

RZ-24 Central

Page 07.021.07

2. General Regulations for Hold-Open System

2a) Demands

The device combinations "RZ-24" and "RZ-24-05" have to be

mounted in the detection range of one of the ﬁre detectors of the

respective door. If not, an additional detector is required.

In Germany, the installation of a hold-open system is regulated by the

general building inspection approval or type approval of the DIBt. For

European countries without national regulations, EN 14637 is used as

a guideline.

These regulations also govern:

- the mounting positions and number of ﬁre detectors

- the position and design of the hand switch

- the acceptance test (ﬁrst placing in service) and marking

- the recurring functional tests and maintenance

- the requirements for the qualiﬁcation of the persons testing

and maintaining

The documents are available under www.dictator.de. The general type

approval DIBt also includes all permissible device combinations.

For further instructions on installation, use, maintenance, functional

testing and servicing as well as documentation, please refer to our

operating manual for hold-open systems, which is available to our

authorised specialists for DICTATOR hold-open systems.

In the Ex-area a hand switch with appropriate explosion protection must

be used.

Only cables approved for this purpose may be used in the Ex-area (e.g.

Ölﬂex EB 2 x 0.75 mm²). The cross-section must be selected according

to the required cable length.

Depending on the application (must be clariﬁed object-related), we re-

commend shielding the cables.

2b) Operational life To ensure the correct functioning of the hold-open system, the DICTA-

TOR smoke and heat detectors have to be replaced after a maximum

of 8 years of operational life. In Germany the DIN 14677 regulates the

replacement obligation of ﬁre detectors in hold-open systems.

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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

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Technical Manual

RZ-24 Central

Components of the DICTATOR Hold-Open System - cont.

3c) Version Without

Door Operator for

Opening

The DICTATOR hold-open system is also made up of maximum 20 smoke

or heat detectors and up to 12 explosion-proof magnets (ATTENTION:

consider the maximum output load of the RZ-24 central!).

Bestandteile:

- RZ-24 central unit with power supply, part no. 040553

- RM 4000 smoke detector or WM 4000 heat detector with base, part

no. 040860SET or 040861SET

- Resistor 3.9 kΩ(included in the scope of delivery of the RZ-24 central)

- Magnet (DICTATOR electromagnets EM GD 50 to EM GD 70 - see

separate catalogue pages)

- Hand release switch, part no. 040005, or the key on the RZ-24 central

In order to open a ﬁre protection door automatically an approved door

operatorcan beused. DieHaftmagnete werdenin Feststellanlagengrund-

sätzlich nur in der Position AUF montiert und sind im Antrieb integriert.

In 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 door operator.

Components:

- RZ-24 central unit with power supply, part no. 040553

- RM 4000 smoke detector or WM 4000 heat detector with base, part

no. 040860SET or 040861SET

- Resistor 3.9 kΩ(included in the scope of delivery of the RZ-24 central)

- Magnet (DICTATOR electromagnets EM GD 50 to EM GD 70 - see

separate catalogue pages)

- Hand release switch, part no. 040005, or the key on the RZ-24 central

- Door operator for opening the door by motor

- Door operator controller

When installing the components, you have to adhere to the respective

operating and mounting instructions.

3d) Version With Door

Operator for

Opening

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Technical Manual

RZ-24 Central

(1)

(1) (1)

(2)

For opening the casing, you turn

each of the 4 spring-loaded screws

(1) about 90° anticlockwise.

Now the cover can be opened to

the right (on the right side (2) it is

connected to the casing).

ATTENTION: When opening the

cover, make sure not to damage the

connection ﬁlm (3) between casing

and cover and the ﬂat cable (4) to

the membrane keys (see illustration

2 on the following page).

4. Mounting the RZ-24 Central

Ill. 1: Casing of RZ-24 central

4b) Opening the Casing

The RZ-24 central is the power supply with integrated tripping device of

the DICTATOR hold-open system on ﬁre doors, smoke evacuation ﬂaps

etc. also in hazardous areas.

When using the RZ-24, it is mandatory to respect in addition to the re-

gulations for hazardous areas also the regulations of the general type

approval Z-6.500-2443.

The RZ-24 central itself is not ex-proof and therefore must be moun-

ted outside the hazardous area.

When choosing the mounting place, please make sure that

- the indications on the cover of the casing are clearly visible,

- the keys can easily be reached,

- the warning of the horn can well be heard.

Furthermore you have to pay attention to the IP rating of the casing which

is required for the choosen mounting place.

By default the casing of the RZ-24 central has 4 borings with M16 thread

for the included cable inlets IP 64. When these are used, the whole casing

corresponds to the IP rating IP 64 (when mounted with the cable inlets

pointing downwards!).

IMPORTANT: After mounting, all not used cable inlets have to be closed

professionally according to the required protection type (blind plugs)!

4a) Choosing the Place of

Installation

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Technical Manual

RZ-24 Central

(3)

(4)

4c) Fixing the RZ-24 For ﬁxing the casing features 4 borings Ø 5 mm which are accessible

when the cover is open (see ill. 2 and 3.

Mounting the RZ-24 Central - cont.

Ill. 2

Ill. 3

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Technical Manual

RZ-24 Central

5. Electrical Connection and Installation of an Ex-Proof

Hold-Open System with RZ-24

Dimensions 122 x 124 x 55 mm (height x width

x depth)

Supply voltage 85 VAC - 265 VAC, 50/60 Hz

Power consumption about 30 W

Additional switching contact potential-free contact 8 A/<250 V~/

AC1 (relay fallen off = tripping)

Secondary output voltage 24 VDC ±5 %

Secondary total load 0.9 A (supply of ﬁre detectors, electro-

magnets and other consumers)

Operating temperature -25 °C to +40 °C

Relative air humidity up to 50 % at 40 °C

temporaily up to 95 % at 25 °C

Casing plastic casing in ABS, light grey,

with 4 threads M16 for cable inlets

Power consumption of the

detection loop alarm: I > 12 mA

interruption: I < 3 mA

short circuit current: max. 50 mA

quiescent current: 4.5 mA

line tension: Ulin = 20.5...21.4

LEDs on the cover of the

casing green LED is on: no ﬁre alarm, system

works normal.

red LED is on: there is a ﬁre alarm or

an error in the detection loop.

IP rating IP 64 when IP 64 cable inlets are used

5a) Technical Data

RZ-24

IMPORTANT: In total the RZ-24 central provides 0.9 A for the supply

of the connected ﬁre detectors, magnets etc.

In case the maximum power consumption is exceeded, the RZ-24 will

automatically switch off. This also happens when it is overheated.

ATTENTION

Some parts inside the casing are

energized with hazardous voltage

during operation! May be opened

only by professionals when being

de-energized (the power supply of

the RZ-24 is cut!!)

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