![background image](http://html1.mh-extra.com/html/daikin/ftxc25av1b/ftxc25av1b_installation-and-maintenance-manual_2459418012.webp)
1-10
*
Be sure to add the proper amount of additional refrigerant. Failure to do so may result in reduced performance.
Remark:
The refrigerant pre-charged in the outdoor unit is for piping length up to 7.5m.
Allowable Piping Length
If the pipe is too long, both the capacity and reliability of the unit will drop. As the number of bends increases, resistance to
the flow of refrigerant system increases, thus lowering cooling capacity. As a result, the compressor may become defective.
Always choose the shortest path and follow the recommendations as tabulated below:
REFRIGERANT PIPING
Model
Indoor (FTXC)
25
35
50
60
Outdoor (RXC)
25
35
50
60
Min. Allowable Length (L), m
3
3
Max. Allowable Length (L), m
20
30
Max. Allowable Elevation (E), m
15
15
Gas Pipe Size, mm/(in)
9.52 (3/8")
12.70 (1/2")
Liquid Pipe Size, mm/(in)
6.35 (1/4")
6.35 (1/4")
Equivalent length for various fitting (meter)
Pipe Size
L joint
Trap bend
3/8" (OD9.52mm)
0.18
1.3
1/2" (OD12.7mm)
0.20
1.5
5/8" (OD15.9mm)
0.25
2.0
3/4" (OD19.1mm)
0.35
2.4
7/8" (OD22.2mm)
0.40
3.0
1" (OD25.4mm)
0.45
3.4
1 1/8" (OD28.6mm)
0.50
3.7
1 3/8" (OD34.9mm)
0.60
4.4
Notes:
1. Equivalent piping length is obtained with actual length of gas piping.
2. 90° bend of piping is equivalent to L joint.
Bending must be carefully made so as not to crush the pipe. Use a pipe bender to bend a pipe where possible.
Indoor Unit
Outdoor Unit
L
E
1 IM-3WMYJ(R)-0816(0)-DAIKIN-EN-10 10
1 IM-3WMYJ(R)-0816(0)-DAIKIN-EN-10 10
12/22/16 10:23:28 AM
12/22/16 10:23:28 AM
Summary of Contents for FTXC25AV1B
Page 2: ......
Page 123: ...7 1 XEMA A MEP K FTXC C B A...
Page 126: ...7 4 H MAH E CTOPO HO 1 1 OFF H MAH E Xm2 13...
Page 128: ...2 K a B 25 35 K M4 x 12L e 75 50 500 1200 50 100 50 50 100 150 150 300 50 1200 1 2 3 7 6...
Page 129: ...1 2 30 3 16 50 60 H A B C D 300 1000 300 500 2 A A 7 7 C D pe c pe c A B H 2 H...
Page 130: ...50 50 75 c y ox 7 8...
Page 136: ...7 14 R32 13 25 OFN...
Page 137: ...7 15 C 3 30 760 760mmHg 3 2 4 o 3 760 760 3 3...
Page 140: ...7 18 FRONT K a B 2 1 4 2 5 4 3 K a CTOPO HO 1 3 2 4...
Page 141: ...7 19 2 1 2 c 3 40 104 F 1 2 3 1 2 40 104 F 1 2 1 2 CTOPO HO...
Page 142: ...7 20 3 1 3 4 2 3 4 5 6 2 30 C 86 F CTOPO HO 40 C...
Page 143: ...8 1 FTXC C B A...
Page 146: ...8 4 1 1 ON OFF OFF Xm2 13...
Page 149: ...16mm 50 60 H A B C D mm 300 1000 300 500 2 A 1 2 30mm 3 8 7 C D A B H 2 H...
Page 150: ...50 50 75 mm 8 8...
Page 156: ...R32 LFL 13 25 OFN OFN OFN OFN 8 14...
Page 157: ...8 15 3 30 760mmHg 760 mmHg 3 2 4 mm 3 760 mmHg 760mmHg 3 3...
Page 161: ...8 19 2 1 2 3 40 C 104 F 1 2 3 2 40 C 104 F 1 2 2...
Page 162: ...8 20 3 1 3 4 2 3 4 5 6 2 30 C 86 F 40 C...
Page 163: ...MEMO PROMEMORIA MITTEILUNG EL MEMOR NDUM LE M MO NOT...
Page 167: ......