Daikin VRV III REYQ8PY1 Service Manual page 194

Si37-701
Setting item
Indoor unit
fan forced H
1
operation
Indoor unit
2 forced
operation
Change of
targeted
3 evaporating
temperature
(in cooling)
Change of
targeted
4 condensing
temperature
(in heating)
Setting of
5 defrost
selection
Setting of
6 sequential
startup
7 Emergency
operation (*1)
Additional
8 refrigerant
charging
Refrigerant
9 recovery
mode (*1)
10 Vacuuming
mode (*1)
ENECUT test
11
operation
Power
12 transistor
check mode
Setting of
model with
13
spare PC
board
For setting items of (*1), refer to detailed information provided on page 191 onward.
Test Operation
Content and objective of setting
Used to operate the indoor unit in the
stopped state in forced H operation
mode.
Used to operate the indoor unit in forced
operation mode.
In cooling operation, used to change the
targeted evaporating temperature for
compressor capacity control.
In heating operation, used to change the
targeted condensing temperature for
compressor capacity control.
Used to change a temperature at which
the defrost operation is initiated, thus
making the initiation easy or hard.
Used to start units not in sequence but
simultaneously.
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).
If a necessary amount of refrigerant
cannot be charged due to the stop of
outdoor unit, operate the outdoor unit and
then refill refrigerant.
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.
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.
Used to forcedly turn ON the ENECUT.
(Be noted this mode is not functional with
the indoor unit remote controller turned
ON.)
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.
In order to replace the PC board by a
spare one, be sure to make model setting.
Overview of setting procedure
Set No. 5 of "Setting mode 2" to indoor
unit forced fan H.
Set No. 6 of "Setting mode 2" to indoor
unit forced operation mode.
Select high side or low side with No. 8 of
"Setting mode 2".
Select high side or low side with No. 9 of
"Setting mode 2".
Select fast side or slow side with No. 10 of
"Setting mode 2".
Set No. 11 of "Setting mode 2" to NONE.
Make this setting while in "Setting mode
2".
For system with multiple outdoor units:
Set with No. 38, 39, or 40.
Set No. 20 of "Setting mode 2" to ON and
then charge refrigerant.
Set No. 21 of "Setting mode 2" to ON.
Set No. 21 of "Setting mode 2" to ON.
Set No. 24 of "Setting mode 2" to ON.
Set No. 28 of "Setting mode 2" to ON.
For this setting, set the DS2-2, -3, and-4
switches on the PC board to the model
concerned.
Field Setting
Reference
page
191~194
191~194
191~194
191~194
191~194
191~194
204, 207
154~163
203
203
191~194
191~194
184~187
183