16 Configuration
Installation and operation manual
37
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546220-1C – 2020.10
[2‑0] Description
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.
[2‑8]
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
[2‑14]
Input additional refrigerant amount that was charged.
In case you want to use the automatic leak detection functionality, it
is required to input the total additional refrigerant charge amount.
[2‑14] Additional amount charged (kg)
0 (default) No input
1 0<x<5
2 5<x<10
3 10<x<15
4 15<x<20
5 20<x<25
6 25<x<30
7 30<x<35
8 35<x<40
9 40<x<45
10 45<x<50
11 50<x<55
12 55<x<60
13 60<x<65
14 65<x<70
15 70<x<75
16 75<x<80
17 80<x<85
18 85<x<90
19 Setting cannot be used. Total refrigerant
charge has to be <100kg.
20
21
▪ For details concerning the calculation of additional refrigerant
charge amount, see "To determine the additional refrigerant
amount"[425].
▪ For guidance concerning the input of the additional refrigerant
charge amount and leak detection function see "16.2 Using the
leak detection function"[438].
[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 30minutes.
If 30minutes 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 40m, 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 50m, the
setting [2‑49] has to be changed to 1.
[2‑83]
Master user interface allocation in case VRV DX indoor units and
RADX indoor units are used at the same time.
[2‑83] Description
0 VRVDX indoor unit has mode selection right.
1 (default) RADX indoor unit has mode selection right
setting.
16.1.9 To connect the PC configurator to the
outdoor unit
X27A
a
b
c
2
345
H J S T
X27A
A1P
a PC
b Cable (EKPCCAB*)
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