User Guide

Installation & Operation Manual - VFH-MB 09/12/18/24 Series
22
Safety Precautions for Installing and Relocating the Unit:
Warnings
To ensure safety, please be mindful of the following precautions.
1. When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the
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2. When installing or moving this unit, do not charge with any refrigerant which does not comply with that on the
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3. When refrigerant needs to be recovered during relocating or repairing the unit, be sure that the unit is running in
cooling mode. Then, fully close the valve at high pressure side (liquid valve). About 30-40 seconds later, fully close the
valve at low pressure side (gas valve), immediately stop the unit and disconnect power. Please note that the time for
refrigerant recovery should not exceed one (1) minute.
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4. After refrigerant recovery, make sure that liquid valve and gas valve are fully closed and power is disconnected before
detaching the connection pipe.
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5. When installing the unit, make sure that connection pipe is securely connected before the compressor starts running.
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7. Use the specified types of wires for electrical connections between the indoor and outdoor units. Firmly clamp the
wires so that their terminals receive no external stresses.
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