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IM-P358-26 

 CH Issue 1

4

1.4  Access

Ensure  safe  access  and  if  necessary  a  safe  working  platform  (suitably  guarded)

before attempting to work on the product. Arrange suitable lifting gear if required.

1.5  Lighting

Ensure adequate lighting, particularly where detailed or intricate work is required.

1.6  Hazardous liquids or gases in the pipeline

Consider  what  is  in  the  pipeline  or  what  may  have  been  in  the  pipeline  at  some 

previous  time.  Consider:  flammable  materials,  substances  hazardous  to  health, 
extremes of temperature.

1.7  Hazardous environment around the product

Consider: explosion risk areas, lack of oxygen (e.g. tanks, pits), dangerous gases, 

extremes of temperature, hot surfaces, fire hazard (e.g. during welding), excessive 

noise, moving machinery.

1.8  The system

Consider  the  effect  on  the  complete  system  of  the  work  proposed.  Will  any

proposed  action  (e.g.  closing  isolation  valves,  electrical  isolation)  put  any  other

part of the system or any personnel at risk? 

Dangers  might  include  isolation  of  vents  or  protective  devices  or  the  rendering 

ineffective of controls or alarms. Ensure isolation valves are turned on and off in a 

gradual way to avoid system shocks.

1.9  Pressure systems 

Ensure  that  any  pressure  is  isolated  and  safely  vented  to  atmospheric  pressure. 

Consider double isolation (double block and bleed) and the locking or labelling of 

closed  valves.  Do  not  assume  that  the  system  has  depressurised  even  when  the 

pressure gauge indicates zero.

1.10  Temperature

Allow  time  for  temperature  to  normalise  after  isolation  to  avoid  danger  of  burns.

1.11  Tools and consumables

Before starting work ensure that you have suitable tools and / or consumables 

available. Use only genuine Spirax Sarco replacement parts.

1.12  Protective clothing

Consider whether you and/or others in the vicinity require any protective clothing 

to  protect  against  the  hazards  of,  for  example,  chemicals,  high /low  temperature,       

radiation, noise, falling objects, and dangers to eyes and face.

Summary of Contents for AEL5 Series

Page 1: ...fety information 2 General information 3 Installation 4 Commissioning 5 Maintenance AEL5 Series Electric Linear Actuators Installation and Maintenance Instructions IM P358 26 CH Issue 1 3580655 1 Copy...

Page 2: ...f the installation of the product is not carried out as specified in this manual iii Isolate the actuator from the mains supply before opening the unit iv The actuator is designed as an installation c...

Page 3: ...the product are lower than those of the system in which it is being fitted or if malfunction of the product could result in a dangerous overpressure or overtemperature occurrence ensure a safety devi...

Page 4: ...electrical isolation put any other part of the system or any personnel at risk Dangers might include isolation of vents or protective devices or the rendering ineffective of controls or alarms Ensure...

Page 5: ...al use the external surface of the product may be very hot If used at the maximum permitted operating conditions the surface temperature of some products may reach temperatures of 90 C 194 F Many prod...

Page 6: ...2 10 Vdc control signal Please note that this option is not available for the 24 Vdc supply variant Full details of the actuator types and reference numbers are given in Table 1 below Table 1 Series i...

Page 7: ...to the limit switch setting the disc springs are compressed at the valve closing position to give a defined closing force and valve shut off 2 3 Manual operation The handwheel is used to operate the a...

Page 8: ...handwheel Note When mounting the actuator to the valve it is advised that the polystyrene packaging remains on the head of the actuator The actuator can become damaged if it dropped or if it topples d...

Page 9: ...cting 10 Lift the valve stem up into the actuator stem until it comes to a stop Screw actuator stem onto the valve stem 12mm then lock the lock nut It is important that this operation is not carried o...

Page 10: ...illar nuts 13 3 2 2 AEL56_ actuator connection to valve Important Disc springs must be assembled correctly There are 2 sets of 3 disc springs which must be assembled in the correct order The convex si...

Page 11: ...his will preload the disc springs Lock the valve stem lock nut 14 Use the peg spanner found tied to the pillar to tighten the retaining nut 11 It is important that when the retaining nut is screwed ha...

Page 12: ...two longest locating guides on the interior of the cover are aligned with the two recesses on the actuator housing Firmly press down the actuator housing ensuring the O ring on the actuator is comple...

Page 13: ...l screws Fig 10 To fit the lid ensure that it is orientated correctly Push the cover over the handwheel shaft on the AEL55_ For the AEL56_ the operating rod for the handwheel must align with the butto...

Page 14: ...ht of the standard limit switches To fit limit switches remove the screws holding the switching plate and carefully remove The cams are fitted to the switching plate 10 with infinitely variable adjust...

Page 15: ...nnect the wires for the potentiometer The AEL56_ actuator can be fitted to either a SPIRA TROL or QL control valve with 30 mm travel or a KE QL control valve with 50 mm travel The difference between t...

Page 16: ...ity of the installation protective earth system must not be compromised by the disconnection or removal of other equipment 4 For supply connections use 1 5 mm wire double insulated as stated in IEC 60...

Page 17: ...sing X10 Not used Actuator Power supply frequency Fuse A Actuator Power supply frequency Fuse A AEL51211 230 V 50 60 Hz 0 125 AEL54211 230 V 50 60 Hz 0 63 AEL51212 115 V 50 60 Hz 0 25 AEL54212 115 V 5...

Page 18: ...from the mains and earth Fig 15 VMD Valve motor drive connection details see page 21 for AEL5952 AEL5953 wiring details Live extend Live retract Neutral X4 16 X4 14 X4 15 X5 2 X5 4 X5 1 Controller Liv...

Page 19: ...sue 1 19 3 6 3 Models with positioner cards 2 10 V signal Fig 17 2 10 V connection details Note GND connection is isolated from the mains and earth Neutral Feedback position 0 10V signal x5 1 x5 4 x5...

Page 20: ...card Remove the switching plate Figures 18 and 19 Mount the auxiliary switch card Figure 20 Remount the switching plate Figure 21 Ensure the mains power is isolated Fig 19 Fig 20 Fig 21 Unmount the s...

Page 21: ...s are shown in the normally closed condition i e when the switches are not engaged with the cams Example If the retract switch is engaged terminals 1 and 2 will be shorted together Fig 24 AEL5951 auxi...

Page 22: ...tioned at this point 5 Using the handwheel retract the spindle so that the top of the anti rotation plate butts with the bottom of the top stroke indicator 6 With the actuator in this position the Ret...

Page 23: ...1 23 Fig 26 Note The limit switches are revealed behind the switching plate 24 Fig 27 27 26 29 28 Switching plate 24 25 Please note that the set screws 26 and 27 are the bigger ones on the switching p...

Page 24: ...the required signal range at the top right 4 20 mA or 2 10 V see Section 3 6 2 Set multimeter to 10 Vdc and connect test leads into the terminal points GND and U out of the positioner card Connect mai...

Page 25: ...d position and cut off Gently turn the potentiometer P4 stroke until the multimeter reads 10 Vdc Gently turn the potentiometer P3 range clockwise until both LEDs indicating the direction of action jus...

Page 26: ...5 million starts 1 start is 1 movement of the spindle The maintenance required for the AEL5 actuator range is to inspect the condition inside of the spindle nut and to lubricate it If the actuator ha...

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