Operating Test Si18-201
210 Operating Test
1.3 Pump Down Operation Switch
1. Close the liquid side stop valve of outdoor unit.
2. Pump down
3. Close the gas side stop valve of outdoor unit after completion of pump down procedure.
4. After completion of repair works for site piping, BP units or indoor units, make sure to open
gas and liquid side stop valves.
PUMP DOWN OPERATION SWITCH [SW4]
Press the PUMP DOWN OPERATION SWITCH [SW4]
PUMP DOWN OPERATION STOPS when LP (Low Pressure)
COMES TO 0.5kg/cm
2
, or automatically in about 8 minutes .
<CAUTIONS>
1) If the LP is 1kg/cm
2
or less, the LP display blinks.
2) If the LP fails to drop below the specified level within the specified time during pump down
operation, appears in the display. (This means that the outside air is low and the pipes
are long and cold.) Repeat the pump down operation.
Digital display:
""
After "Pd_" Blinks in the
digital display, the LP
(Low Pressure) indicator
activates.
<CAUTIONS>
After all indoor units have stopped, PUMP DOWN is performed for the next operation.
[Approx. 5 minutes ]
(Q0002)
To Next Page
Loading...
Need help?
General