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Work on the installation should only be carried out 

by qualified personnel with calibrated equipment. 

When  replacing  parts,  only  ATAG  Service 

components may be used.

If you smell gas:

-  No naked flames! No smoking!

-  Do  not  switch  lights  on  or  off  or  use  other 

electrical switches.

-  Do not use the phone

-  Close the gas mains

-  Open windows and doors 

-  Warn the occupants and leave the building 

-  Only call the gas company or installer once you 

are outside the building. 

Corrosion protection

Do not use sprays, chlorine-containing cleaning 

products, solvents, paints etc. in the vicinity of the 

device or its air supply. These substances have 

an adverse impact on the device and can lead to 

corrosion that may result in failures.

Checking the heating water

Regularly check the water pressure of the heating 

installation

Always use potable water for filling the installation. 

Adding  chemical  agents  such  as  frost  and 

corrosion inhibitors are only to be added by your 

installer. 

If  in  doubt,  check  with  your  installer  or  ATAG 

Heating UK Ltd (See contact details on page 25).

Safety

Summary of Contents for A200S

Page 1: ...U s e r m a n u a l A200S A203C A320S A325C A325EC...

Page 2: ...perature 20 4 4 Requesting current data 20 5 Filling the installation 21 6 Decommissioning the boiler 22 7 Comfort Eco setting of hot water 23 8 Pump continuously 24 9 Errors 25 10 Maintenance 25 11 W...

Page 3: ...y before operating the boiler In case of doubt or errors contact your installer ATAG Heating reserves the right to change the specifications and dimensions without prior notice Work on the boiler must...

Page 4: ...explanation of its operation The installer is legally required to complete a commissioning checklist as a means of complying with the appropriate Building Regu lations England and Wales All installat...

Page 5: ...once you are outside the building Corrosion protection Do not use sprays chlorine containing cleaning products solvents paints etc in the vicinity of the device or its air supply These substances have...

Page 6: ...e European standard CE Adeclaration of conformity can be obtained from the manufacturer The efficiency of the boiler is very high and the radiation convection and standby losses very low The emission...

Page 7: ...ter a malfunction has occurred In case of a failure the symbol is displayed with a Cx xx code In other cases the Reset button has no function and will not respond when operated See 9 for a brief overv...

Page 8: ...directly Heating program OFF Press until the lowest value is reached and then press again The display is showing and the upper is off Switching on works in reverse order i i R i i R i i R Briefly pres...

Page 9: ...program of approx 7 min becomes active 9 Bleed the entire CH installation start at the lowest point 10 Check the water pressure and if necessary top off until 1 5 to 1 7 bar 11 Make sure the cold wate...

Page 10: ...d The arrow to the left is off In case of work on the heating installation Make sure no heat request occurs let no hot water tap run and set the room thermostat to low Pull the plug from the wall sock...

Page 11: ...OK key for 3 seconds The display is showing P6 alternated with 81 Press the Scroll key 1x The display is showing P6 alternated with 84 Press the OK key The display is showing b0 Press the Scroll key 1...

Page 12: ...K key The display is showing off automatic Adjust the value by means of the or key to on continuously Briefly press the OK key to confirm the new setting The display is showing the chosen parameter ag...

Page 13: ...ram active approx 7 min c1 17 water pressure too high c1 18 water pressure too low If leaks occur in the installation please contact your installer Venting program active Conclude a maintenance agreem...

Page 14: ...www atagheating com...

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