Refrigerant
R407C&R22
INSTALLATION INSTRUCTION SHEET
(PART NO. 9370083002)
This air conditioner uses R407C and R22.
CONTENTS .................................................................... 1
STANDARD PARTS ........................................................ 2
For authorized service personnel only.
This mark indicates procedures which, if improperly performed, might lead to the death or serious injury of
WARNING!
the user.
This mark indicates procedures which, if improperly performed, might possibly result in personal harm to the
CAUTION!
user, or damage to property.
1 For the air conditioner to operate satisfactorily, install it as outlined in this installation instruction sheet.
2 Connect the indoor unit and outdoor unit with the air conditioner piping and cords available from our stand-
ard parts. This installation instruction sheet describes the correct connections using the installation set
available from our standard parts.
3 Installation work must be performed in accordance with national wiring standards by authorized personnel
only.
4 If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant comes in contact with
a flame, it produces a toxic gas.
5 Do not turn on the power until all installation work is complete.
6 When installing or moving the air conditioner, use care not to charge it with the wrong refrigerant (such as
R407C or R22).
Observe the following precautions when using R407C refrigerant.
•
Do not use mineral oil on flared part.
Prevent mineral oil from getting into the system as this would reduce the lifetime of the unit.
•
Never use piping which has been used for previous installations. Only use parts that are delivered with the
unit.
• Be careful not to scratch the air conditioner when handling it.
• After installation, explain correct operation to the customer, using the operating manual.
• Let the customer keep this installation instruction sheet because it is used when the air conditioner is
serviced or moved.
Cassette Type (VRF System)
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