Hitachi RPFC-2.0TNE1NH, Installation And Maintenance Manual, Page: 10 / 24

8
Installation and Maintenance
1. Safety Notice
WARNING
·
Installation should be performed by a qualified personnel. (Improper installation may cause water leakage,
electrical shock or fire.)
·
Install the unit according to the instructions given in this manual. (Incomplete installation may cause water
leakage, electrical shock or fire).
·
Be sure to use the supplied or specified installation parts. (Use of other parts may cause the unit to loosen,
water leakage, electrical shock or fire).
·
Install the air conditioner on a solid base that can support the unit weight. (An inadequate base or incomplete
installation may cause injury if falls off the base)
.
·
Electrical work should be carried out in accordance with the installation manual along with local and national
electrical wiring rules or code of practice.
(Insufficient capacity or incomplete electrical work may cause electrical shock or fire)
.
·
Be sure to use a dedicated power circuit. (Never use a power supply shared by another appliance)
.
·
For wiring, use a cable long enough to cover the entire distance, do not use an extension cord.
·
Do not put other loads on the power supply, use a dedicated power circuit.
·
Use the specified types of wires for electrical connections between the indoor and outdoor units. (Firmly clamp
the interconnecting wires so that the terminals receive no external stresses
).
·
Incomplete connections or clamping may cause terminal overheating or fire.
·
After establishing connection between all the wires be sure to fix the cables so that they do not put undue
force on the electrical covers or panels. (Install covers over the wires, incomplete cover installation may cause
terminal overheating, electrical shock or fire
).
·
When installing or relocating the system, be sure to keep the refrigerant circuit free from Substances (such as
air) other than the specified refrigerant. (Any presence of air or other foreign substance in the refrigerant
circuit causes an abnormal pressure rise or rupture, resulting in injury)
.
·
If any refrigerant has leaked out during the installation work, ventilate the room.
·
After all installation is complete, check to make sure that there is no refrigerant leakage. (The refrigerant
produces a toxic gas if exposed to flames)
.
·
When carrying out piping connection, do not to let air substances other than the specified refrigerant
enter the refrigeration cycle. (Otherwise, it will cause lower performance, abnormal high pressure in
the refrigeration cycle, explosion and injury)
.
·
Make sure the installation has a proper earth connection. Do not earth the unit to a utility pipe, arrester,
or telephone grounding. Incomplete grounding may cause electrical shock. (A high surge current from lightning
or other sources may damage the air conditioner
).
·
An earth leakage circuit breaker may be required depending on the site condition to prevent electrical shock.
·
Disconnect the power supply before wiring, piping, or checking the unit.
·
When moving the indoor unit and outdoor unit, please be careful, do not make the outdoor unit incline over
45 degree. sharp edges of the air conditioner
·
During remote controller installation, ensure that the length of the wire between the indoor unit and
remote controller is within 40 meters.
Pay attention to the to avoid any injury.
·
Do not install the air conditioner in a place where there is danger of exposure to inflammable gas leakage. (If
the gas leaks and builds up around the unit, it may catch fire)
.
·
Establish drain piping according to the instructions in this manual. (Inadequate piping may cause flooding)
.
·
Tighten the flare nut according to the torque specifications with a torque wrench. (If the flare nut is tightened
too hard, the flare nut may crack after a long time and cause refrigerant leakage)
.
CAUTION