Daikin RXYQ96PYDN, Service Manual

Page: 110 / 567

SiUS34-801A_b Field Settings
VRVIII R-410A Heat Pump 60Hz 95
For setting items of (*1), refer to detailed information provided on page 101 onward.
12.1.2 Setting by Dip Switches
(1) Factory setting of initial PC board.
Setting item Content and objective of setting
Overview of setting procedure Reference
page
Service settin
g
1
Indoor unit
fan forced H
operation
Used to operate the indoor unit in the
stopped state in forced H operation
mode.
Set No. 5 of [ Setting mode 2 ] to indoor
unit forced fan H.
101~104
2
Indoor unit
forced
operation
Used to operate the indoor unit in forced
operation mode. Set No. 6 of [ Setting mode 2 ] to indoor
unit forced operation mode.
101~104
3
Change of
targeted
evaporating
temperature
(in cooling)
In cooling operation, used to change the
targeted evaporating temperature for
compressor capacity control.
Select high side or low side with No. 8 of
[
Setting mode 2 ].
101~104
4
Change of
targeted
condensing
temperature
(in heating)
In heating operation, used to change the
targeted condensing temperature for
compressor capacity control.
Select high side or low side with No. 9 of
[
Setting mode 2 ].
101~104
5
Setting of
defrost
selection Used to change a temperature at which
the defrost operation is initiated, thus
making the initiation easy or hard.
Select fast side or slow side with No. 10 of
[
Setting mode 2 ].
101~104
6
Setting of
sequential
startup
Used to start units not in sequence but
simultaneously.
Set No. 11 of [ Setting mode 2 ] to NONE.
101~104
7
Emergency
operation (*1)
If the compressor has a failure, used to
prohibit the operation of outdoor unit(s)
concerned and to conduct emergency
operation of the system only with
operable or outdoor unit(s).
Make this setting while in [ Setting mode
2 ].
For system with multiple outdoor units:
Set with No. 38, 39, or 40.
113~117
8
Additional
refrigerant
charging
If a necessary amount of refrigerant
cannot be charged due to the stop of
outdoor unit, operate the outdoor unit and
then refill refrigerant.
Set No. 20 of [ Setting mode 2 ] to ON and
then charge refrigerant.
78~89
9
Refrigerant
recovery
mode (*1)
Used to recover refrigerant on site.
With operations of indoor and outdoor
units prohibited, open the outdoor/indoor
expansion valve fully while indoor/
outdoor operation is prohibited and turn
ON some of the solenoid valves.
Set No. 21 of [ Setting mode 2 ] to ON.
112
10
Vacuuming
mode (*1)
Used to conduct vacuuming on site.
Open the outdoor/indoor expansion valve
fully while indoor/outdoor operation is
prohibited and turn
ON some of the
solenoid valves. Use a vacuum pump to
conduct vacuuming.
Set No. 21 of [ Setting mode 2 ] to ON.
112
11
ENECUT test
operation
Used to forcedly turn ON the ENECUT.
(Be noted this mode is not functional with
the indoor unit remote controller turned
ON .)
Set No. 24 of [ Setting mode 2 ] to ON.
101~104
12
Power
transistor
check mode
Used for the troubleshooting of DC
compressors.
Inverter waveform output makes it
possible to judge whether a malfunction
results from the compressor or the PC
board.
Set No. 28 of [ Setting mode 2 ] to ON.
101~104
13
Setting of
model with
spare PC
board
In order to replace the PC board by a
spare one, be sure to make model setting.
For this setting, set the DS2-2, -3, and-4
switches on the PC board to the model
concerned.
95~97