Additional refrigerant charge
104
Installation
8. Additional refrigerant charge
After the vacuum drying process is carried out, the additional refrigerant charge process need to be
performed.
The outdoor unit is factory charged with refrigerant. The additional refrigerant charge volume is decided
by the diameter and length of the liquid pipe between indoor and outdoor unit. Refer the following
formula to calculate the charge volume.
Diameter of liquid pipe (mm)
Φ6.35
Φ9.52
Formula
V=15g/m×(L-5)
V=30g/m×(L-5)
V: Additional refrigerant charge volume (g).
L :
The length of the liquid pipe (m).
Note:
Refrigerant may only be charged after performed the vacuum drying process.
Always use gloves and glasses to protect your hands and eyes during the charge work.
Use electronic scale or fluid infusion apparatus to weight refrigerant to be recharged. Be sure to avoid
extra refrigerant charged, it may cause liquid hammer of the compressor or protections.
Use supplementing flexible pipe to connect refrigerant cylinder, pressure gauge and outdoor unit. And
The refrigerant should be charged in liquid state. Before recharging, The air in the flexible pipe and
manifold gauge should be exhausted.
After finished refrigerant recharge process, check whether there is refrigerant leakage at the connection
joint part.(Using gas leakage detector or soap water to detect).
Summary of Contents for KOU-12HFN1-QRC8
Page 1: ...Contents i Energy Related Products SUPER DC INVERTER SERIES Service Manual 2013 LFIS B 1309...
Page 2: ......
Page 4: ......
Page 17: ...Service Space Indoor Units 13 3 Service Space 1000mm 1000mm 1000mm 1000m m...
Page 23: ...Field Wiring Indoor Units 19 9 Field Wiring...
Page 31: ...Wiring Diagrams Indoor Units 27 KTB 24HWDN1 QRC4...
Page 42: ...Service Space 38 Indoor Units 3 Service Space...
Page 44: ...Wiring Diagrams 40 Indoor Units KUE 36HRFN1 QRC8 A...
Page 47: ...Indoor Units 43 9 Field Wiring...
Page 50: ...Dimensions 46 Indoor Units 2 Dimensions...
Page 51: ...Service Space Indoor Units 47 3 Service Space...
Page 52: ...Wiring Diagrams 48 Indoor Units 4 Wiring Diagrams KCA2U 12HRFN1 QRC8 KCA2 18HRFN1 QRC8...
Page 56: ...52 Indoor Units 10 Field Wiring KCA2U 12HRFN1 QRC8 KCA2 18HRFN1 QRC8...
Page 58: ......
Page 61: ...Dimensions Console Type 57 2 Dimensions KFAU 12HRFN1 QRC8 KFA 16HRFN1 QRC8...
Page 62: ...Service Space 58 Console Type 3 Service Space...
Page 63: ...Wiring Diagrams Console Type 59 4 Wiring Diagrams KFAU 12HRFN1 QRC8 KFA 16HRFN1 QRC8...
Page 68: ...Field Wiring 64 Console Type 10 Field Wiring KFAU 12HRFN1 QRC8 KFA 16HRFN1 QRC8...
Page 74: ...Wiring Diagrams 70 Outdoor Units 4 Wiring Diagrams KOU 12HFN1 QRC8...
Page 76: ...Wiring Diagrams 72 Outdoor Units KOU 36HFN1 RRC4 KOU 36HFN1 RRC8 520 KOU 36HFN1 QRC8 5A0...
Page 77: ...Wiring Diagrams Outdoor Units 73 KOU 36HFN1 RRC8 5A0...
Page 102: ...Refrigerant pipe installation 98 Installation...
Page 110: ...Engineering of insulation 106 Installation cause leakage to damage the house decoration...