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VRF outdoor units employ seven distinct solenoid valves — from modular and liquid bypass valves to oil return and oil equalization valves. Differences in function and fault consequences for each type often lead to misdiagnosis during maintenance.
On November 12, K-HVAC and Eurovent signed a memorandum designating a test laboratory, enabling Korean manufacturers to undergo international HVAC certification testing domestically. The seminar also presented Eurovent certification programs for heat pumps, IT cooling, hygienic AHUs, and desert climate conditions.
Chungcheongnam-do Province and the Korea Refrigerant Management Technology Association (KRAMTA) are hosting a specialized course on refrigerant recovery in VRF systems. The two-day training on November 26–27, 2026, in Nonsan combines theory, hands-on practice, and a service module into each day.
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