Check air conditioning system for leakage

AR83.30-P-1761LF

14.02.2019

Model

217, 222

 Danger	Risk of explosion when using a forming gas with incorrect mixing ratio. Risk of suffocation due to inhalation of forming gas. Risk of injury due to bursting of high-pressure hoses.	Wear safety glasses and protective gloves. No smoking or open flames. Work in well-ventilated rooms only.	AS83.00-Z-0001-02A
Topical note	Procedure for a damaged or leaky air conditioning system		AH83.30-N-0004-01A
	Check
1	Evacuate air conditioning system		AR83.30-P-1760LF
2	Preliminary test for pressure drop test	Model 217, 222 with code 1U6 (R744 refrigerant)
	000 588 19 21 00 Leak tester		WS83.00-P-0035B
		 Pay attention to the leak tester operator's manual.
		 Do not fill air conditioning system with forming gas unless engine is cold.
		Preliminary test for pressure drop test	*BE83.30-P-1002-04A
3	Fill air conditioning with forming gas and check pressure drop
	000 588 19 21 00 Leak tester		WS83.00-P-0035B
		 Pay attention to the leak tester operator's manual.
		 Do not fill air conditioning system with forming gas unless engine is cold.
		 Temperature changes during the pressure test (e.g. through change in weather or cooling down of the engine compartment overnight) can cause pressure surges. Consistent ambient conditions must therefore be strictly ensured.
		Pressure drop in refrigerant circuit filled with test gas	*BE83.30-P-1001-04A
4	Check for leaks in air conditioning system using gas detection unit	If a drop in pressure is detected.
	000 588 03 21 00 Gas detector		WS47.00-P-0019B
		 Pay attention to the operator's manual of the leak tester and the gas detection unit.
		In the event of leakage
		
		Replace damaged components of the air conditioning system.
5	Release forming gas from leak tester
6	Charge air conditioning system		AR83.30-P-1760LF

Air conditioning

Number	Designation			Model 118, 164, 166, 167, 169, 171, 177, 190, 197, 199, 204, 205, 207, 209, 211, 212, 216, 218, 219, 221, 230, 238, 240, 245, 247, 251, 253, 257, 290, 292, 293 Model 213, 217, 222 except code 1U6 (R744 refrigerant)	Model 213, 217, 222 with code 1U6 (R744 refrigerant)
BE83.30-P-1001-04A	Pressure drop in refrigerant circuit filled with test gas	Test pressure	bar	15	90
		Test period	h	4	4
		Permissible fluctuation of ambient temperature	°C	2	2
		Pressure drop	bar	0	<1

Air conditioning

Number	Designation			Model 213, 217, 222 with code 1U6 (R744 refrigerant)
BE83.30-P-1002-04A	Preliminary test for pressure drop test	Test pressure	bar	50
		Test period	min	1
		Pressure drop	bar	0

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