Mitsubishi Electric PAAA18AA1 Installation Manual page 29

WARNING
• Be sure to ground the PAA unit and outdoor unit.
– Do not connect the earth cable to any gas pipe, water pipe, lightening rod, or tele-
phone earth cable. Incomplete grounding may cause a risk of electric shock. If the
supply cord is damaged, it must be replaced by a dealer, contractor or technician with
certifications as required by laws and codes, in order to avoid a hazard.
• Install the power cable so that tension is not applied to the cable.
– Tension may cause the cable to break and generate heat and cause a fire.
• Install a leak circuit breaker as required.
– If a leak circuit breaker is not installed, electric shock may result. Use power line
cables of sufficient current carrying capacity and rating. Cables that are too small may
leak, generate heat, and cause a fire.
• Use power line cables of sufficient current carrying capacity and rating.
– Cables that are too small may leak, generate heat, and cause a fire.
• When sizing wire and completing electrical connections during installation, please follow
local codes and standards.
– Fuse or circuit breaker of a larger capacity or a steel or copper wire may result in a
general unit failure or fire.
• Do not wash the PAA unit.
– Washing the PAA unit may cause an electric shock.
• Ensure that the installation base is not damaged.
– If damaged, the unit may fall and cause personal injury or property damage.
• Install the drain piping according to this installation manual to ensure proper drainage.
Wrap thermal insulation around the pipes to prevent condensation.
– Improper drain piping may cause water leakage and damage to furniture and other
possessions.
• Be very careful about product transportation.
– If the product weighs more than 20 kg [44 lb], more than one person should carry the
product.
– Some products use polypropylene band (PP) bands for packaging. Do not use any PP
bands for a means of transportation; it is dangerous.
– Do not touch the heat exchanger fins. Doing so may cut your fingers.
• Safely dispose of the packing materials.
– Packing materials, such as nails and other metal or wooden parts, may cause stabs or
other injuries.
– Tear apart and throw away plastic packaging bags so that children will not play with
them. If children play with a plastic bag which was not torn apart, they face the risk of
suffocation.
• Before installing or servicing system, always turn off main power to system. There may
be more than one disconnect switch. Tag disconnect switch with a warning label.
– Failure to follow this warning could result in personal injury or death.
• Always disconnect power to the furnace before removing the blower door.
– Failure to disconnect power may result in electric shock or injury.
• Label all wires prior to disconnection when servicing controls. Verify proper operation
after servicing.
– Wiring errors can cause improper and dangerous operation.
Specifications are subject to change without notice.
PAA-A18, 24, 30, 36, 42AA1/BA1/CA1
29 © 2022 Mitsubishi Electric US, Inc.