Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

R-134A Systems

Low Pressure	A/C Compressor Clutch Switch Open Below	1.2 Bar (bar)
	A/C Compressor Clutch Switch Closed Above	2.4 Bar (bar)
High Pressure	A/C Compressor Clutch Switch Closes Below	24.0 Bar (bar)
	A/C Compressor Clutch Switch Opens Above	32.0 Bar (bar)
Radiator Cooling Fan Between terminal 3 and 4	Switch Opens Below	12.5 Bar (bar)
	Switch Opens Above	16.0 Bar (bar)