6 Configuration
Installation and operation manual
25
RWEYQ8~RWEYQ8~14T9Y1B
VRV IV water-cooled system air conditioner
4P452190-1A – 2017.04
What
How
Changing the value of the
selected setting in mode 2
▪ Once mode 2 is selected (push BS1
for more than 5 seconds) you can
select the wanted setting. It is done
by pushing BS2.
▪ Accessing the selected setting's value
is done by pushing BS3 1 time.
▪ Now BS2 is used to select the
required value of the selected setting.
▪ When the required value is selected,
you can define the change of value
by pushing BS3 1 time.
▪ Press BS3 again to start operation
according to the chosen value.
6.1.7
Mode 1: Monitoring settings
[1‑0]
Shows whether the unit you check is a master, slave 1 or slave 2
unit.
The master unit should be used to input field settings in
mode 2.
[1‑0]
Description
No indication
Undefined situation.
0
Outdoor unit is master unit.
1
Outdoor unit is slave 1 unit.
2
Outdoor unit is slave 2 unit.
[1‑1]
Shows the status of low noise operation.
[1‑1]
Description
0
Unit is currently not operating under low noise
restrictions.
1
Unit is currently operating under low noise
restrictions.
[1‑2]
Shows the status of power consumption limitation operation.
[1‑2]
Description
0
Unit is currently not operating under power
consumption limitations.
1
Unit is currently operating under power
consumption limitation.
[1‑5] [1‑6]
Shows:
▪ [1‑5]: The current T
e
target parameter position.
▪ [1‑6]: The current T
c
target parameter position.
[1‑13]
Shows the total number of connected outdoor units (in case of
multiple outdoor system).
[1‑17] [1‑18] [1‑19]
Shows:
▪ [1‑17]: The latest malfunction code.
▪ [1‑18]: The 2nd last malfunction code.
▪ [1‑19]: The 3rd last malfunction code.
6.1.8
Mode 2: Field settings
[2‑8]
T
e
target temperature during cooling operation.
[2‑8]
T
e
target (°C)
1
3°C
2 (default)
6°C
3
7°C
4
8°C
5
9°C
6
10°C
7
11°C
[2‑9]
T
c
target temperature during heating operation without variable
refrigerant temperature (VRT) control.
[2‑9]
T
c
target (°C)
1
41°C
2
42°C
3
43°C
4
44°C
5
45°C
6 (default)
46°C
7
49°C
[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.
[2‑23]
Variable refrigerant temperature (VRT) control
[2‑23]
VRT control
0 (default)
Activated both cooling and heating
1
Activated heating only
2
Activated cooling only
3
Deactivated
[2‑24]
Water pump/valve control.
To activate the variable flow system, change the setting to the
applicable value.
[2‑24]
Water pump control
0 (default)
OFF
1
Each unit has a pump/valve
2
One pump/valve per system
3
Each unit has a pump/valve (pump is OFF
when slave unit does not operate)
