Daikin VRV W T-series - Recommended replacement cycle of wear-out parts

7 Configuration
Installation manual
40
RWEQ96~432TAYCU
VRV W T-Series water-cooled system air conditioner
4P540122-1B – 2018.11
[2-74]
Heat rejection cancellation setting temperature.
If the unit internal temperature is higher than the zero energy
dissipation setting temperature, the zero energy dissipation control
will start and cool down the unit.
[2-74] Description
0 77°F (25°C)
1 80.6°F (27°C)
2 84.2°F (29°C)
3 (default) 87.8°F (31°C)
4 91.4°F (33°C)
5 95°F (35°C)
6 98.6°F (37°C)
7 102.2°F (39°C)
[2-81]
Cooling comfort setting.
Thissettingisusedinconjunctionwithsetting[2-8].
[2-81] Cooling comfort setting
0 Eco
1 (default) Mild
2 Quick
3 Powerful
[2-82]
Heating comfort setting.
Thissettingisusedinconjunctionwithsetting[2-9].
[2-82] Heating comfort setting
0 Eco
1 (default) Mild
2 Quick
3 Powerful
Heat pump lockout
[2-16]
Heat pump lockout 1.
Heat pump is always locked out when this setting is ON. If the indoor fan control needs to be changed or the auto-backup function is required,
refertothesetting[2-37].
[2-16] Heat pump lockout 1
0 (default) OFF
1 ON
[2-37]
Heat pump lockout 2.
Heat pump is locked out when this setting and an external input to ABC terminal are made.
[2-37] Heat pump lockout 2
0 (default) OFF
1 Mode 1
2 Mode 2
Mode Description
Actions
Field setting
Shorted
between
Heating Thermo-on Heating Thermo-off
Heater Fan Heater Fan
Mode 1 Lockoutiscontrolledbyan
external input to ABC
terminal
2-37: Mode 1
A-C ON ON(H/L) OFF LL(*2)
B-C OFF
Mode 2
(*1)
2-37: Mode 2
A-C LL LL(*2)
B-C OFF OFF
*1. For a heater which does not need airflow
*2. Depends on the indoor unit field setting 12(22)-3.
Automatic lockout
When this setting is made, the auto-backup function will
automatically be activated. This will allow the auxiliary or secondary
heat source to be automatically activated in the event of a system
failure related to outside units.
Error codes capable of auto-backup are listed in the table below.
Please be aware that the error codes that are not listed do not auto-
backup in order to protect the unit.
Error code (Auto
backup possible)
Error contents
A3 Drain level control system abnormality
E3 Actuation of high pressure switch
E4 Actuation of low pressure sensor
E5 Inverter compressor motor lock
E9 Electronic expansion valve coil abnormality
F3 Discharge pipe temperature abnormality
F9 Branch Selector unit electronic expansion valve
abnormality