York TIWM006B21S Installation And Maintenance Manual page 24

(11) For Left Side Piping
Perform the following piping connection work.
(a) It is recommended that the piping connection work be performed
by 2 people: one supports the indoor unit and the other performs
the piping connection.
Take care not to uncouple the indoor unit from the
mounting plate.
(b) Correctly position piping before installing the indoor unit to the wall. For left-rear side piping
connections, refer to section 5.2.7.
● Do not apply excessive force to the flare nut when tightening. If applied, the flare nut may crack
due to stress fracture and refrigerant leakage may occur. Use the correct torque specifications.
● Make sure that a refrigerant leak test has been performed. Refrigerant (Fluorocarbon) for this unit is
non-flammable, non-toxic, and odorless. If the refrigerant should somehow escape and come into
contact with flame, toxic gas will form. This gas is heavier than air and will settle near floor areas
and spread where it can cause suffocation to those nearby.
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