R32
High Efficiency DC Inverter LCAC
145
8. Emptying or Vacuum
Before charging the refrigerant to the system, to ensure that there is no impurities, water or
non-condensable gas. So, emptying and vacuum operation should be carried out.
◇
Vacuum: when process this operation please be sure that the connection pipe is
tightened up.
1. Screw off the cover of maintenance valve connection, connect the pressure gauge to
the connection of maintenance valve
2. Connect the vacuum pump to the pressure gauge, turn on the vacuum pump and
pressure gauge to process the vacuum operation toward the indoor unit and piping, while to
ensure that the absolute pressure is no less than 50Pa after this operation.
3. Turn off the pressure gauge and vacuum pump to keep the pressure in the same level
in 20 minutes.
◇
Emptying: when process this operation, please disconnect the high pressure valve with
liquid valve.
1. Connect the gas valve of the stop valve to the thimble side of the rubber hoses, the
other side of rubber hoses should be connected to the refrigerant tank.
2. Open the refrigerant tank valve, using the refrigerant inside the tank with high speed to
empty the air in the indoor unit and the connection piping. When the outlet air becomes mist
(it feels cold by touching it), then the air is emptied.
3. When ensure that the air is emptied, connect and tighten the high pressure valve of
outdoor unit stop valve and liquid side connection pipe, keep this state more than 10
seconds.
4. Use soapy what to test each connection junctions (including lengthen piping welding
junction)
5. Confirmed that there is no leakage, turn off the valve of refrigerant tank, take down the
rubber hose as well.
◇
Turn on the high-low pressure valve of the outdoor unit.
After vacuum and emptying, screw back the cover of the maintenance valve of outdoor unit
low pressure valve, screw off the high-low pressure valve of the outdoor unit (note: shall
totally turned off ). Connect the refrigerant to the system.
Содержание ALCF-H18/NDR3HA
Страница 4: ......
Страница 13: ...R32 High Efficiency DC Inverter LCAC 9 Optimized Centrifugal Fan Removable Control Box ...
Страница 40: ...R32 High Efficiency DC Inverter LCAC 1 3 36K 42K 48K 60K 771 675 778 679 835 290 835 950 950 514 ...
Страница 44: ...R32 High Efficiency DC Inverter LCAC 4 Outdoor Unit 4 1 12K 18K 800 545 545 315 315 860 ...
Страница 45: ...R32 High Efficiency DC Inverter LCAC 41 4 2 24K 700 900 630 350 350 950 ...
Страница 46: ...R32 High Efficiency DC Inverter LCAC 4 3 30K 36K 42K 808 970 675 409 395 1044 ...
Страница 47: ...R32 High Efficiency DC Inverter LCAC 43 4 4 48K 60K 364 1010 1325 940 625 370 ...
Страница 54: ...R32 High Efficiency DC Inverter LCAC 4 2 48K 60K ...
Страница 60: ...R32 High Efficiency DC Inverter LCAC Part8 Static pressure curve 1 18K Duct Hi SET Normal ...
Страница 61: ...R32 High Efficiency DC Inverter LCAC 57 2 24K Duct Hi SET Normal ...
Страница 62: ...R32 High Efficiency DC Inverter LCAC 2 30K Duct Hi SET Normal ...
Страница 63: ...R32 High Efficiency DC Inverter LCAC 59 2 36K 42K Duct Hi SET Normal ...
Страница 64: ...R32 High Efficiency DC Inverter LCAC 3 48K 60K Duct Normal ...
Страница 96: ...R32 High Efficiency DC Inverter LCAC Cassette and ceiling floor ...
Страница 106: ...R32 High Efficiency DC Inverter LCAC 18 围板 A Baffle A 16421010000071 1 ...
Страница 123: ...R32 High Efficiency DC Inverter LCAC 119 4 Outdoor Unit 4 1 12K 18K ...
Страница 158: ...R32 High Efficiency DC Inverter LCAC 1 2 30K 36K 42K Main PCB Drive Modular Board ...
Страница 159: ...R32 High Efficiency DC Inverter LCAC 155 1 3 48K 60K Main PCB Drive Modular Board ...
Страница 161: ...R32 High Efficiency DC Inverter LCAC 157 Driver Modular ...
Страница 163: ...R32 High Efficiency DC Inverter LCAC 159 2 Failure analysis 2 1 AA Wired controller communication failure ...
Страница 164: ...R32 High Efficiency DC Inverter LCAC 2 2 A9 Communication failure between indoor and outdoor unit ...
Страница 165: ...R32 High Efficiency DC Inverter LCAC 161 Outdoor protection phase sequence ...
Страница 166: ...R32 High Efficiency DC Inverter LCAC 2 3 H1 high pressure protection Cooling high pressure protection ...
Страница 168: ...R32 High Efficiency DC Inverter LCAC 2 4 2Heating low pressure protection ...
Страница 169: ...R32 High Efficiency DC Inverter LCAC 165 ...
Страница 170: ...R32 High Efficiency DC Inverter LCAC 2 5 E3 High exhaust temperature protection Cooling exhaust temperature protection ...
Страница 171: ...R32 High Efficiency DC Inverter LCAC 167 Heating exhaust temperature protection ...
Страница 172: ...R32 High Efficiency DC Inverter LCAC 2 6 E1 four way valve failure protection ...
Страница 173: ...R32 High Efficiency DC Inverter LCAC 169 2 7 Sensor failure protection ...