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SHEVS Control Centre   RWZ  1 b 

 

 

 

 

7

 

3.5.4

 

Ventilation buttons with indication of position OPEN 

A

 

  The status light 

A

 (LT-*- A) lights up when a travel command is executed toward OPEN. 

The status light goes out after the closing time for a travel command toward CLOSED (up to 4 minutes). 
 

3.5.5

 

External Wind and Rain Control (WRC) 

  If the Wind and Rain Control responds, the actuators are automatically closed. The ventilation functions are 

disabled. The indicator 

w

 on the main board lights up, until the WRC releases the ventilation functions once 

again. An alarm has priority. 
 

3.5.6

 

Internal Wind and Rain Control (option WRM) 

  If the internal Wind and Rain Control responds, the actuators are automatically closed. The ventilation func-

tions are disabled. The indicators 

W

 and / or 

R

 on the module and the indicator 

w

 on the main board light 

up, until the internal WRC releases the ventilation functions once again. An alarm has priority. 

  The response thresholds of the sensors can be adjusted with a screwdriver at the potentiometers 

W

 and 

R

 

on the module: 

  Rotating clockwise increases the sensitivity. 

  Rotating counterclockwise reduces the sensitivity. 

Factory setting: highest sensitivity for both sensors. 

!

  Too low sensitivity setting can cause damage by wind and rain, for which we do not assume any liability. 

  The rain sensor is heated when it rains. This helps the sensor surface to dry faster after rain and to allow ven-

tilation again. 

 

“Reduced sensitivity to wind”

 DIP Switch 

W:S1-1

In position ON, sensitivity to gusts of wind is reduced. This setting has no effect on sensitivity to constant 
wind. 
Factory setting: OFF (normal sensitivity). 

!

  Perform the setting only for correspondingly stable or insensitive designs! 

 

“Continuous heating of rain sensor”

 DIP switch 

W:S1-2

In position ON, the rain sensor is heated continuously at reduced power. For example, this reduces morning 
dew and incidental activation of the sensor. If the sensor is activated by rain, the heater operates at full power 
once again up to drying. 
Factory setting: OFF (heating is active only in rain). 
 

3.6

 

Repetition of CLOSE cycle 

  If not all actuators are properly closed (e.g. actuator overload cutoff activated by a gust of wind), the repetition 

of CLOSE cycle can be activated by briefly pressing the ventilation button 

z

. The actuators are briefly opened 

and following the closing command activated once again. 

i

 

Observe setting of the function “Automatic OFF” see 3.2). 
 

3.7

 

Mains failure 

  In case of mains failure, the accumulators cannot be charged, but provide the operating power for the stand-

by time. The alarm functions are not affected by the mains failure. 
Actuators in ventilation position are closed and pressing the ventilation button 

a

 is ignored. The mains failure 

must be corrected immediately to avoid deep-discharge disconnection, to recharge the accumulators and to 
ensure the safe operation of the system. 

i

 

Observe setting of the function “Automatic OFF” see 3.2). 

 

Deep-discharge disconnection:

 in case of critical condition of the accumulators, the entire Control Centre 

including the indicators is 

switched off

. However, a low quiescent current still flows (in addition to the natural 

self-discharge). Therefore, there is the risk of permanent damage to the accumulators without recharging af-
ter a few days already. 
 

Summary of Contents for GRASL SHEVS Control Centre RWZ 1 b

Page 1: ...Pneumatic Mechanik GmbH Europastraße 1 3454 Reidling Österreich Austria 43 0 22 76 21 200 0 43 0 22 76 21 200 99 _ Office graslrwa at www graslrwa at Smoke and Heat Ventilation Pneumatic Electronic Control Systems A530975 Installation and Operation Instructions Version 2 15 SHEVS Control Centre RWZ 1 b G 513007 0786 EN 12101 10 2005 Class A 0786 CPR 50643 14 ...

Page 2: ...es and Controls 4 3 1 Indicators control elements of the Control Centre 4 3 2 Selectable functions 5 3 3 Indicators functions of the manual call points 5 3 4 Alarm functions 5 3 4 1 Manual call points automatic fire detectors and Fire Alarm Control Panel 6 3 4 2 Repetition of OPEN cycle in case of alarm 6 3 5 Ventilation functions 6 3 5 1 Manual ventilation 6 3 5 2 Setting the ventilation position...

Page 3: ...ty actuators compatibility is to be checked Also note Section 6 Technical data Actuator specification 24 V actuators travelling time for full stroke at rated load total travelling time 4 min Actuators must be suitable for the repetition of OPEN and or CLOSE cycle see 3 4 2 3 6 Upon direct change of the sense of travel the actuators are briefly stopped before changing the sense Sheet steel enclosur...

Page 4: ...Control Centre and its components The individual functions are described in Section 3 also simulate malfunctions and check detection see 5 Following putting into service completely close all actuators if necessary press button z i After about 24 hours continuous operation without mains failure the accumulators are sufficiently charged to achieve the full standby time during mains failure 2 2 Putti...

Page 5: ...ee operation Extinguishes when a malfunction is detected r red RT 2 Alarm s yellow RT 2 BS Malfunction see also 5 Button Reset r red RT 2 BS Resetting the alarm function accessible after opening the door with a key Manual call point with buzzer S for audible alarm and malfunction signalisation RT 2 BS AA The buzzer emits a continuous warning tone in case of alarm and an intermittent warning tone i...

Page 6: ... tion position h see 3 5 2 Pressing it again stops the actuators By pressing the button for the reverse sense of travel the travel direction is reversed after a short stop When pressed longer 1 s the actuators travel as long as the button is pressed It can also be travelled up to the end position or the set ventilation position see 3 5 2 3 5 2 Setting the ventilation position h Set the travel time...

Page 7: ...g has no effect on sensitivity to constant wind Factory setting OFF normal sensitivity Perform the setting only for correspondingly stable or insensitive designs Continuous heating of rain sensor DIP switch W S1 2 In position ON the rain sensor is heated continuously at reduced power For example this reduces morning dew and incidental activation of the sensor If the sensor is activated by rain the...

Page 8: ...nt temperature of 20 C The service life falls by 1 year for every 10 C rise in ambient temperature Checking the accumulators Press the button Test r in the Control Centre and then briefly press the but ton Reset S This switches from mains to accumulator operation during the alarm test actuators travel a bit slower Open the actuators completely If the accumulator voltage falls below 22 5 V a malfun...

Page 9: ...Exception is the malfunction code U accumulator test failed also see 4 Accumulators and 5 2 This code has to be reset after troubleshooting by pressing the button Reset S 5 2 Indications of the service display With the help of the internal service display operating conditions can be accurately displayed In normal con dition there is no indication on the service display and the indicator o of the C...

Page 10: ...rotect from direct sunlight humidity and excessive formation of dust Preferably the installation should be carried out in dry heated rooms Signal lines Line monitoring wire break short circuit Line T Automatic fire detectors Smoke detector heat detector RM 2 TM 2 or RM 3 TM 3 or Fire Alarm Control Panel Terminating resistor Alarm resistor 20 pieces of which max 10 heat detectors 1 normally open co...

Page 11: ... x 2 5 mm 73 m 36 m 24 m 18 m 2 x 4 0 mm 116 m 58 m 39 m 29 m 2 x 6 0 mm 174 m 87 m 58 m 44 m 2 x10 0 mm 290 m 145 m 97 m 73 m Fuses Primary mains miniature fuse 5 x 20 mm Accumulators flat fuse 19 mm Actuators flat fuse 19 mm F1 T 2 A F2 10 A F3 10 A Alarm and malfunction forwarding option PK Contact load rating PFC r PFC s change over contacts Fuses PFC r PFC s miniature fuses 5 x 20 mm 5 A 30 V...

Page 12: ...les on following pages FACP F WRC r PFC s PFC System diagram please consider local conditions components r Smoke Exhaust r o s Smoke Exhaust r o s A S Smoke Exhaust Run the actuator lead unbranched to under the roof For max allowed lengths of cable please refer to section Technical Data Max 10 mm rigid can be clamped Page A 7 Page A 4 General length of cable max 400 m if not specified otherwise 2x...

Page 13: ... connect release resistor Ral 1k5 0 5 W affixed to Control Centre door when supplied as shown Main alarm point RT 2 BS Example of connection When connecting fire detectors remove terminating resistor Rab from Control Centre and connect it to the last detector Mains Actuators r o s Smoke Exhaust Ventilation buttons Remove link when con necting an external WRC WRC Link terminals 2 10 and 12 in the l...

Page 14: ...ors Rend from Control Centre and connect them to the last actuator Colour code for resistors 10k brown black black red When directly driving actuators e g with external accumulators during installation or maintenance work the actuators must be disconnected from the Control Centre In case of wrong travelling sense reverse polarity of actuator cable Run the actuator lead unbranched to under the roof...

Page 15: ...as shown Fire Alarm Control Panel FACP Ral 1k5 0 5 W FACP NO contact Additionally connect release resistor Ral affixed to Control Centre door when supplied as shown Automatic fire detectors or Fire Alarm Control Panel FACP Colour code for resistors 10k brown black black red 1k5 brown green black brown When connecting fire detectors remove terminating resistor Rab from Control and connect it to the...

Page 16: ... position open Colour code for resistors 10k brown black black red Manual call points When connecting fire detectors remove terminating resistor Rab from Control and connect it to the last detector 1st example Main alarm point last secondary alarm point last see page A 6 Terminals A H of the secondary alarm points are provided only for looping through the signals to following main alarm points Sec...

Page 17: ...lack black red 2nd example Secondary alarm point last main alarm point last see page A 5 Manual call points When connecting fire detectors remove terminating resistor Rab from Control and connect it to the last detector Terminals A H of the secondary alarm points are provided only for looping through the signals to following main alarm points Main alarm point RT 2 BS Main alarm point RT 2 BS AA A ...

Page 18: ...C NO NC C NO Potential free contacts option PK r r 1 2 3 1 2 3 4 5 6 4 5 6 s s F 1 2 3 4 5 6 Ventilation buttons Option PK 7 A 9 Ventilation buttons potential free contacts option PK Link terminals and P in the last ventilation button with indication of position OPEN Internal PFC relays Caution External voltage PFC PFC alarm r PFC PFC malfunction s ...

Page 19: ...hen connecting an external Wind and Rain Control Wind sensor WM 1 bk Surface of sensor External Wind and Rain Control WRS 2 Internal Wind and Rain Control option WRM Rain Sensor RS 2 Use a separate contact for each connected Control Centre Control Output contact 1 Output contact 2 Output contact 3 Output contact 4 x y Wind and Rain Control y 6 9 12 15 x 5 8 11 14 1 j 1 j w Q y y x x WRS 2 w w w rd...

Page 20: ...WZ 1 9 A 9 Accu Line voltage mounting accumulators Insert the accumulators in the enclosure secure them with the fastening plates and connect them as illustrated When putting into out of service observe the operating instructions Be sure to disconnect the accumulators if mains voltage supply is cut out for a longer time Accumulators Line voltage Mounting ...

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