ABB ProKiln GAC400 Operating Instruction page 123

ProKiln GAC400 PROBE GAS SAMPLING SYSTEM | OI/GAC400-EN REV. A
10. Stop the water pump on the Water-Cooling Pump ON/OFF
switch on the side of the water system control panel and
wait a few minutes until stabilization.
11. Check for lime deposits in tubes, water tank and cooler
12. If lime deposits limiting the flow rate are found, a lime
removal must be made.
13. Remove all the water in the cooling system by releasing tank
bottom valve. If it contains anti-freeze, preferably into a
temporary storage tank for reuse afterwards. Rinse cooling
system with potable water to remove any last anti-freeze.
This is important to avoid any chemical reaction between an
anti-freeze liquid and lime-removing liquid.
14. Fill approximately 50 litres of water in the water tank. Add
lime removal liquid according to suppliers' specification. Do
not use any strong acid solution instead of lime removal
liquid.
15. Rinse the system by starting the water pump on the Water-
Cooling Pump ON/OFF switch on the side of the water
system control panel. Let flow run for a few minutes.
16. When completed, stop the pump and remove all the liquid by
releasing the tank bottom valve and disposing of it according
to suppliers' specification and local environmental
regulations. Rinse the tank and tubes with potable water to
remove any lime removal liquid leftovers.
17. Refill the water tank with potable water.
18. Unlock EMERGENCY STOP switch -15S7 or -150S3 by turning
the back ring in the direction of the arrow. No movement
must be seen.
19. Push the blue button Emergency Reset -15SB/-15P12 to allow
new operation of the probe retractor and air blaster probe
blow-back.
20. Insert gas sampling probe into the kiln.
Path: Main ► Probe Position ► Go S3
WARNING! Gas sampling probe moves into the kiln. Do not
stand in the area of travel of the gas sampling probe or
probe buggy until the probe is completely inserted into the
kiln and the warning lamps/sounds go out.
21. Switch system to Auto mode on the HMI
Path: Home ► Auto
22. Operation/Service Mode -50S15 switch must be switch back
to Operation Mode
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