Daikin VRV IV RXYQ TTJU Series, Engineering Data

Page: 41 / 91

Installation Manual EDUS341411-N
42 Installation of Outdoor Units
3P362438-1B
32 3P362438-1B English
2 Field wiring
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the wiring diagrams and according to the applicable legislation.
3 Power supply voltage
Check the power supply voltage on the local supply panel. The
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of the unit.
4 Ground wiring
Be sure that the ground wires have been connected properly and
that the ground terminals are tightened.
5 Insulation test of the main power circuit
Using a megatester for 500 V, check that the insulation resistance
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between power terminals and ground. Never use the megatester
for the transmission wiring.
6 Fuses, circuit breakers, or protection devices
Check that the fuses, circuit breakers, or the locally installed pro-
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has been bypassed.
7 Internal wiring
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connections or damaged electrical components.
8 Pipe size and pipe insulation
Be sure that correct pipe sizes are installed and that the insulation
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9 Stop valves
Be sure that the stop valves are open on both liquid and gas side.
10 Damaged equipment
Check the inside of the unit on damaged components or squeezed
pipes.
11 Refrigerant leak
Check the inside of the unit on refrigerant leakage. If there is a
refrigerant leak, try to repair the leak. If the repair is unsuccess-
ful, call your local dealer. Do not touch any refrigerant which has
leaked out from refrigerant piping connections. This may result in
frostbite.
12 Oil leak
Check the compressor for oil leakage. If there is an oil leak, try
to repair the leak. If the repairing is unsuccessful, call your local
dealer.
13 Air inlet/outlet
Check that the air inlet and outlet of the unit is not obstructed by
paper sheets, cardboard, or any other material.
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Record them on the accessory REQUEST FOR THE INDICATION
label.
And attach the label on the back side of the front panel.
15 Record the installation date.
Record the installation date on the accessory
REQUEST FOR
THE INDICATION label.
And attach the label on the back side of the front panel.
15.2.
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Below relevant Monitoring mode (mode 1) and Field setting mode
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is given on how to make a setting. It is advised to check this procedure
before accessing, checking and changing below settings.
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be accessed.
Making settings is done via the master outdoor unit.
15.2.1. Mode 1
Mode 1 can be used to monitor the current situation of the outdoor
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[1-0]= shows whether the unit you check is a master, sub 1 or sub 2
unit
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r
0=outdoor unit is master unit
r 1=outdoor unit is sub 1 unit
r
2=outdoor unit is sub 2 unit
Master, sub 1 and sub 2 indications are relevant in multiple
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outdoor unit is master, sub 1 or sub 2 are decided by the
unit’s logic.
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mode 2.
[1-1]= shows the status of low noise operation.
r 1=unit is currently operating under low noise restrictions
r
0=unit is currently not operating under low noise restric-
tions
Low noise operation reduces the sound generated by the
unit compared to nominal operating conditions.
Low noise operation can be set in mode 2. There are two
methods to activate low noise operation of the outdoor unit
system.
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the selected low noise level during the selected time frames.
The second method is to enable low noise operation based
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sory is required.
[1-2]= shows the status of power consumption limitation operation.
r 1=unit is currently operating under power consumption
limitation
r 0=unit is currently not operating under power consump-
tion limitations
Power consumption limitation reduces the power consump-
tion of the unit compared to nominal operating conditions.
Power consumption limitation can be set in mode 2. There
are two methods to activate power consumption limitation of
the outdoor unit system.
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selected power consumption limitation.
The second method is to enable power consumption
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optional accessory is required.
[1-5]= shows the current T
e
target parameter position.
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