Daikin VRV W T-Series Installation Manual page 38

7 Configuration
[2-20]
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.
[2-21]
Refrigerant recovery/vacuuming mode.
In order to achieve a free pathway to reclaim refrigerant out of the
system or to remove residual substances or to vacuum the system it
is necessary to apply a setting which will open required valves in the
refrigerant circuit so the reclaim of refrigerant or vacuuming process
can be done properly.
[2-21]
0 (default) Deactivated.
1 Activated.
To stop the refrigerant recovery/vacuuming
mode, push BS3. If BS3 is not pushed, the
system will remain in refrigerant recovery/
vacuuming mode.
[2-23]
Variable refrigerant temperature (VRT) control
[2-23]
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. Refer to "5.8.10 To connect the optional wiring" -
"Interlock" on page 33 for information on selecting and setting flow
switch and compressor operation signal relay.
[2-24]
0 (default) OFF
1 One pump/valve per module; pump/valve on
secondary units remain ON when secondary
units are OFF
2 One pump/valve per system
3 One pump/valve per module; pump/valve on
secondary units are OFF when secondary units
are OFF
[2-25]
Water volume minimum setting.
Field setting of lower limit (%) of water volume control.
Set the field setting [2-25] so that the minimum water volume does
not go down below 13.2 gpm (50 L /min). When using brine at
entering water temperature of 50°F (10°C) or less, set the minimum
water flow limit to 21.2 gpm (80 L /min) or more.
[2-25] Flow % of max flow rate
—
(thermo-off)
0
1
Installation manual
38
Description
Description
VRT control
Water pump control
DC output (V)
0% 2.0
10% 2.7
20% 3.4
[2-25] Flow % of max flow rate
2
3
4 (default)
5
6
7
—
— 100%
(Local max flow rate)
When the unit stop or thermo-off, the DC output is 2.0 V.
DC Output
(2-9 V)
9.0 V
7.6 V
5.5 V
2.0 V
0% 50%
[2-30]
Power consumption limitation level (step 1) via the external control
adaptor (DTA104A61/62).
If the system needs to be running under power consumption
limitation conditions when an external signal is sent to the unit, this
setting defines the level power consumption limitation that will be
applied for step 1. The level is according to the table.
[2-30] Power consumption limitation
1
2
3 (default)
4
5
6
7
8
[2-31]
Power consumption limitation level (step 2) via the external control
adaptor (DTA104A61/62).
If the system needs to be running under power consumption
limitation conditions when an external signal is sent to the unit, this
setting defines the level power consumption limitation that will be
applied for step 2. The level is according to the table.
[2-31] Power consumption limitation
1 (default)
2
3
VRV W T-Series water-cooled system air conditioner
DC output (V)
30% 4.1
40% 4.8
50% 5.5
60% 6.2
70% 6.9
80% 7.6
90% 8.3
9.0
(Default)
DC output range
5.5-9.0 V
80% 100% Water (brine)
volume
(approximately)
60%
65%
70%
75%
80%
85%
90%
95%
(approximately)
40%
50%
55%
RWEQ96~432TAYCU
4P540122-1B – 2018.11