Daikin VRV - WII, Руководство по обслуживанию

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SiUS30-604 Stop
Function 59
2. Stop
2.1 Stopping Operation
This operation is used to define the operation of the actuator while the system stops.
2.1.1 When System is in Stop Mode
2.1.2 Stopping Operation of Slave Units During Master Unit is in Operation
with Multi-Outside-Unit System
This operation is used to make adjustments of required refrigerant amount with non-operating slave
units while the master unit is in operation.
In cooling operation : The system operates in mode A or mode B listed in the table below.
The changeover operation for mode A and B is performed for the reason that the required refrigerant amount varies
depending on the indoor unit operation capacity.
Parts name Symbol
Electrical
symbol
Actuator function
Compressor — (M1C) OFF
Inverter cooling fan — (M1, 2F) OFF
4 way valve 1 20S1 (Y5S) Holding
4 way valve 2 20S2 (Y7S) Holding
Main heat exchanger electronic exp. valve EV1 (Y1E) 0 pulse
Sub-cooling electronic exp. valve EV3 (Y3E) 0 pulse
Hot gas bypass solenoid valve SVP (Y1S) OFF
Water heat exchanger oil return solenoid valve SVE (Y2S) OFF
Receiver gas charging solenoid valve SVL (Y3S) OFF
Receiver gas discharge solenoid valve SVG (Y4S) OFF
Non-operation unit liquid pipe stop solenoid valve SVSL (Y6S) ON
Ending conditions — — Indoor unit thermostat ON
Parts name Symbol
Electrical
symbol
Mode A operation (
∗
1) Mode B operation (
∗
1)
Compressor — (M1C) OFF OFF
Inverter cooling fan — (M1, 2F) OFF OFF
4 way valve (Main) 20S1 (Y5S) Holding Holding
4 way valve (for heat exchanger) 20S2 (Y7S) Holding Holding
Main heat exchanger electronic exp.
valve
EV1 (Y1E) 150 to 300 pulse 0 pulse
Sub-cooling electronic exp. valve EV3 (Y3E) 0 pulse 0 pulse
Hot gas bypass solenoid valve SVP (Y1S) OFF OFF
Water heat exch. oil return solenoid valve SVE (Y2S) ON OFF
Receiver gas charging solenoid valve SVL (Y3S) OFF OFF
Receiver gas discharge solenoid valve SVG (Y4S) OFF OFF
Non-operation unit liquid pipe stop
solenoid valve
SVSL (Y6S) OFF ON
Mode transition conditions
To Mode B when No gas
shortage signal is sent
from indoor unit To Mode A when gas
shortage signal is sent
from indoor unit
Ending conditions Slave units are required to operate.
Mode A : Master unit collects refrigerant.
Mode B : Slave unit storage refrigerant.



Master
unit
Slave
unit
∗
1 Mode A or B operation