Spirax Sarco SA121 Installation And Maintenance Instructions Manual Download Page 3

IM-P381-01 

 CH Issue 5

3

1.5  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.

1.6  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.

1.7  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.

1.8  Temperature

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

1.9  Tools and consumables

Before  starting  work  ensure  that  you  have  suitable  tools  and/or  consumables 
available. Use only genuine Spirax Sarco replacement parts.

1.10  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.

1.11  Permits to work

All  work  must  be  carried  out  or  be  supervised  by  a  suitably  competent  person.
Installation  and  operating  personnel  should  be  trained  in  the  correct  use  of  the 
product according to the Installation and Maintenance Instructions.
Where a formal 'permit to work' system is in force it must be complied with. Where 
there  is  no  such  system,  it  is  recommended  that  a  responsible  person  should  know       
what  work  is  going  on  and,  where  necessary,  arrange  to  have  an  assistant  whose            
primary responsibility is safety.
Post 'warning notices' if necessary.

1.12  Handling

Manual handling of large and/or heavy products may present a risk of injury. Lifting, 
pushing,  pulling,  carrying  or  supporting  a  load  by  bodily  force  can  cause  injury       
particularly to the back. You are advised to assess the risks taking into account the 
task,  the  individual,  the  load  and  the  working  environment  and  use  the  appropriate 
handling method depending on the circumstances of the work being done.

Summary of Contents for SA121

Page 1: ...ol Systems Knob Adjustment Installation and Maintenance Instructions 1 Safety information 2 Use 3 Installation 4 Pre commissioning checks 5 Display adjustment 6 Commissioning 7 Decommissioning 8 Maint...

Page 2: ...acted to confirm the suitability of the product for the application being considered ii Check material suitability pressure and temperature and their maximum and minimum values If the maximum operatin...

Page 3: ...u have suitable tools and or consumables available Use only genuine Spirax Sarco replacement parts 1 10 Protective clothing Consider whether you and or others in the vicinity require any protective cl...

Page 4: ...tions this product is recyclable and no ecological hazard is anticipated with its disposal providing due care is taken 1 16 Returning products Customers and stockists are reminded that under EC Health...

Page 5: ...inst corrosion the separate screwed nipple is dispensed with and the union nut and compression ring attached directly to the top of the pocket Therefore insert the pocket in place of the screwed nippl...

Page 6: ...occur and the warranty will be invalidated Before commissioning this unit please ensure that the system temperature cannot exceed the overtemperature protection value Table 2 Metric Self acting temper...

Page 7: ...without changing the temperature setting Reference Figure 3 opposite for the following instructions Adjust to the desired setting by turning the knob clockwise to lower the temperature and anticlockw...

Page 8: ...7 Decommissioning 8 Maintenance and spare parts There are no serviceable parts As a safety precaution if the unit is to be decommissioned it is important to reset the unit to its maximum factory sett...

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