Daikin RZQG71L9V1, Service Manual

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ESIE15-13C Introduction
v
1. Introduction
1.1 Version log
Version history.
1.2 Safety Cautions
Cautions and
Warnings

Be sure to read the following safety cautions before conducting repair work.
 The caution items are classified into “
Warning
” and “
Caution
”. The “
Warning
”
items are especially important since they can lead to death or serious injury if they are not
followed closely. The “
Caution
” items can also lead to serious accidents under some
conditions if they are not followed. Therefore, be sure to observe all the safety caution items
described below.
 About the pictograms
This symbol indicates the item for which caution must be exercised.
The pictogram shows the item to which attention must be paid.
This symbol indicates the prohibited action.
The prohibited item or action is shown in the illustration or near the symbol.
This symbol indicates the action that must be taken, or the instruction.
The instruction is shown in the illustration or near the symbol.
 After the repair work is complete, be sure to conduct a test operation to ensure that the
equipment operates normally, and explain the cautions for operating the product to the
customer.
1.2.1 Cautions Regarding Safety of Workers
Version code Description Date
Version A Preliminary release November 2015
Version B Addition of combination FUQ + RZQSG February 2016
New controller BRC1E53
Fieldsetting on outdoor PCB: setting 2-7 Reduced airflow added
Version C Manual also applicable for RZQG-LY1L April 2017
Warning
Be sure to disconnect the power cable plug from the plug socket before
disassembling the equipment for repair.
Working on the equipment that is connected to the power supply may cause an
electrical shock.
If it is necessary to supply power to the equipment to conduct the repair or
inspecting the circuits, do not touch any electrically charged sections of the
equipment.
If the refrigerant gas is discharged during the repair work, do not touch the
discharged refrigerant gas.
The refrigerant gas may cause frostbite.
When disconnecting the suction or discharge pipe of the compressor at the
welded section, evacuate the refrigerant gas completely at a well-ventilated
place first.
If there is a gas remaining inside the compressor, the refrigerant gas or
refrigerating machine oil discharges when the pipe is disconnected, and it may
cause injury.
If the refrigerant gas leaks during the repair work, ventilate the area. The
refrigerant gas may generate toxic gases when it contacts flames.