Daikin VRV IV RXMLQ8T7Y1B Series, Installation And Operation Manual

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7 Commissioning
Installation and operation manual
23
RXYLQ10~14T7Y1B*
VRV IV system air conditioner
4P543426-1 – 2018.07
[2‑0] Description
0 (default) Each individual outdoor unit can select Cool/
Heat operation (by Cool/Heat selector if
installed), or by defining master indoor user
interface (see setting [2‑83] and the operation
manual).
1 Master unit decides Cool/Heat operation when
outdoor units are connected in multiple system
combination
(a)
.
2 Slave unit for Cool/Heat operation when
outdoor units are connected in multiple system
combination
(a)
.
(a) It is necessary to use the optional external control adaptor
for outdoor unit (DTA104A61/62). See the instruction
delivered with the adaptor for further details.
[2‑4]
Heating test run setting.
In case room temperature is below 25°C and ambient temperature is
below 15°C, a part of the check operation changes to heating
operation. Differences of setting 1 and 2 is that setting 2 has
additional heating operation to warm up the room (maximum 30
minutes), before cooling check operation.
[2‑4] Description
0 (default) Cooling check operation.
1 Heating and cooling check operation.
2 Heating and cooling check operation.
[2‑8]
T
e
target temperature during cooling operation.
[2‑8] T
e
target (°C)
0 (default) Auto
2 6
3 7
4 8
5 9
6 10
7 11
[2‑9]
T
c
target temperature during heating operation.
[2‑9] T
c
target (°C)
0 (default) Auto
1 41
3 43
6 46
[2‑20]
Manual additional refrigerant charge.
[2‑20] Description
0 (default) Deactivated.
1 Activated.
To stop the manual additional refrigerant
charge operation (when the required additional
refrigerant amount is charged), push BS3. If
this function was not aborted by pushing BS3,
the unit will stop its operation after 30 minutes.
If 30 minutes was not sufficient to add the
needed refrigerant amount, the function can be
reactivated by changing the field setting again.
[2‑35]
Height difference setting.
[2‑35] Description
0 In case the outdoor unit is installed in the
lowest position (indoor units are installed on a
higher position than outdoor units) and the
height difference between the highest indoor
unit and the outdoor unit exceeds 40 m, the
setting [2‑35] should be changed to 0.
1 (default) —
[2‑49]
Height difference setting.
[2‑49] Description
0 (default) —
1 In case the outdoor unit is installed in the
highest position (indoor units are installed on a
lower position than outdoor units) and the
height difference between the lowest indoor
unit and the outdoor unit exceeds 50 m, the
setting [2‑49] has to be changed to 1.
[2‑83]
Master user interface allocation in case VRV DX indoor units and
RA DX indoor units are used at the same time.
[2‑83] Description
0 VRV DX indoor unit has mode selection right.
1 (default) RA DX indoor unit has mode selection right
setting.
6.1.9 To connect the PC configurator to the
outdoor unit
X27A
a b c
2
3
4
5
H J
ST
X27A
A1P
a PC
b Cable (EKPCCAB)
c Outdoor unit main PCB
7 Commissioning
After installation and once the field settings are defined, the installer
is obliged to verify correct operation. Therefore a test run MUST be
performed according to the procedures described below.