Friedrich 1198785 Floating Air Series 36000 BTU Quad Zone Mini Split System with 4x 9000 BTU Wall Mounted Unit and Outdoor Unit

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7. Outdoor four-way Valve Control

Four‑way valve of the outdoor machine shuts down when cooling but starts when heating. The operation of heating defrosting refers

to defrosting operation and, when the heating remote shutdown, the four‑way valve disconnects in 50s when the compressor stops

working.

8. Start-up Protection

To prevent compressor from restart frequently in the condition that system pressure has not been completely balanced, it can’t be

restarted within 3 minutes.

Pressure switch is normally kept open. When the pressure grows too high, the pressure switch will close and will enter pressure

protection control. The frequency will automatically decrease. If the pressure is still unable to return to normal condition after