Marstair A2LSYSTEMATCH SMC 15 Technical Manual page 43

19. Duration of fire watch
PRESSURE TESTING
20. F Gas certificate number
21. Is the system to be pressure tested with Oxygen
Free Nitrogen?
22. What is the required strength pressure test?
23. What is the required tightness pressure test?
24. Has the pressure been incrementally increased
in a safe manner?
25. Has the system passed the strength test?
26. Has the system passed the tightness test?
27. What was the duration of the tightness test?
28. Has the system been safely de-pressurised into a
well ventilated environment?
EVACUATION
29. Has a flammable gas leak detector been
energised and placed in a suitable location?
30. Have all possible ignition sources been removed
from the work area?
31. Has a suitable vacuum pump been fitted to the
system?
32. Is the oil level satisfactory?
33. Is the exhaust able to be discharged into a safe
environment away from ignition source?
34. Has a vacuum gauge been connected to the
system?
35. Has a suitable vacuum been achieved and held
for a suitable period of time?
CHARGING OF REFRIGERANT
36. Is additional refrigerant charge required?
37. Is a suitable charging cylinder available fitted
with the correct bottle adaptor?
38. Have you selected a calibrated weighing
platform?
39. Calibration certificate number
40. Has the charging hose been evacuated of air?
41. Will the system be charged in liquid or vapour
form?
42. Has the correct additional charge been added in
accordance with the manufacturers
instructions?
43. Can the equipment be energised to remove
refrigerant from the charging hoses?
44. Have the isolation valves been opened
correctly?
If yes go to question 22
If no rectify and reassess
If yes go to question 25
If no rectify and reassess
If yes go to question 26
If no rectify and reassess
If yes go to question 27
If no rectify and reassess
If yes go to question 29
If no rectify and reassess
If yes go to question 30
If no rectify and reassess
If yes go to question 31
If no rectify and reassess
If yes go to question 32
If no rectify and reassess
If yes go to question 33
If no rectify and reassess
If yes go to question 34
If no rectify and reassess
If yes go to question 35
If no rectify and reassess
If yes go to question 36
If no rectify and reassess
If yes go to question 37
If no go to question 44
If yes go to question 38
If no rectify and reassess
If yes go to question 39
If no rectify and reassess
If yes go to question 41
If no rectify and reassess
If yes go to question 43
If no rectify and reassess
If yes go to question 44
If no rectify and reassess
If yes go to question 45
If no rectify and reassess
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