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)
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Expansion Valve: Description and Operation
Expansion valveThe expansion valve allows high pressure liquid to expand as it enters evaporator. By allowing liquid to expand, it will absorb more heat in evaporator. Valve also meters amount of
refrigerant entering system to prevent
evaporator core from flooding.