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

System Specifications

A/C refrigerant high pressure switch F23, (yellow or green housing):
- opens 10.6 - 15.0 bar (153.7 - 217.5 psi).
- closes 13.1 - 17.5 bar (189.9 - 253.7 psi).

A/C high pressure cut-out switch F118, (red housing):
- opens 28.2 - 31.0 bar (408.9 - 449.5 psi).
- closes 10.3 - 17.3 bar (149.3 - 250.9 psi).

A/C refrigerant low pressure switch F73:
- opens 1.45 - 1.6 bar (21.0 - 23.2 psi).
- closes 2.9 - 3.2 bar (42.0 - 46.4 psi).