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Friedrich FSHSW09A1A - Key Installation Safety Precautions

Friedrich FSHSW09A1A
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22
To ensure safety, please be mindful of the following precautions.
Warning
When installing or relocating the unit, be sure to keep the refrigerant
circuit free from air or substances other than the specified refrigerant.
Any presence of air or other foreign substance in the refrigerant circuit will cause
system pressure rise or compressor rupture, resulting in injury.
Only qualified technicians, should install, move or service this equipment.
Please follow the units nameplate and installation instruction to ensure safe
and accurate operation of product.
If there is a need to recover refrigerant during installation, ensure system is
running in cooling mode. Fully close high pressure service valve (Liquid valve)
and allow to pump-down for 30-40 seconds, then fully close the low pressure
service valve (Gas valve) and immediately remove power from unit. Do not
exceed 1 minute in pump-down otherwise system contamination or breakage
can occur.
Ensure unit is leak free by applying 500psig of dry nitrogen and check all flares
with a liquid bubble solution. Watch carefully for small bubbles indicating a leak.
Do not install unit in a area where corrosive gases or flammable gases exist.
Otherwise premature failure of product can occur, or fire.
Do not use supply (power) cords or extension cords with equipment. This
product must be installed by a certified installer. Wired per NEC codes.
Follow local and national codes for interconnection between indoor and
outdoor units.
Safety precautions for installing and relocating the unit