Fuji Electric ROG45LAT8 User manual

CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . .1
DIMENSIONS. . . . . . . . . . . . . . . . . . . . . . .8
REFRIGERANT SYSTEM DIAGRAM . . . 18
ERROR DETECTION. . . . . . . . . . . . . . . .60
CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . .20
INDOOR PCB CIRCUIT DIAGRAM
. . . 30OUTDOOR PCB CIRCUIT DIAGRAM
. . . . .40
BRANCH BOX PCB CIRCUIT DIAGRAM . . .36
PARTS (OUTDOOR UNIT) . . . . . . . . . . . 65
PARTS (BRANCH BOX) . . . . . . . . . . . . . 69
PARTS (INDOOR UNIT) . . . . . . . . . . . . . 72
ACCESSORIES . . . . . . . . . . . . . . . . . . .105
Indoor unit
RSG07LJCA
RSG09LJCA
RSG12LJCA
RSG18LFCA
RSG24LFCA
RCG07LVLA
RCG09LVLA
RCG12LVLA
RCG14LVLA
RCG18LVLA
CG-UFFD
RGG09LVCA
RGG12LVCA
RGG14LVCA
RDG07LLTA
RDG09LLTA
RDG12LLTA
RDG14LLTA
RDG18LLTA
RYG14LVTA
RYG18LVTA
Outdoor unit
ROG45LAT8
Branch box
UTP-PY02A
UTP-PY03A
Separation tube
UTP-SX248A
HYBRID FLEX INVERTER SYSTEM

MODEL NAME
POWER SUPPLY
FREQUENCY
NOISE LEVEL
AIR FLOW
ELECTRICAL DATA
MEASUREMENT
FAN MOTOR
230 V
Cooling (Rated)
Heating (Rated)
Cooling (Rated)
Heating (Rated)
Cooling
Heating
TYPE Hybrid flex inverter system
ROG45LAT8
56 dB(A)
58 dB(A)
50 Hz
4,650 m3/h
4,800 m3/h
COMPRESSOR AND REFRIGERANT
TYPE
DISCRIMINATION 808 688 80(B)
WEIGHT 26.0 kg
PRECHARGED REFRIGERANT
REFRIGERANT TYPE R410A
3,450 g
Hermetic type, Inverter, 4 poles,
3-phase, DC motor, Twin Rotary
914 x 970 x 370 mm
98 kg / 106 kg
OUTDOOR UNIT
BRANCH BOX
SPECIFICATIONS
WEIGHT
DIMENSIONS
MFE-45WVN
890 r.p.m.
910 r.p.m.
H x W x D
Net / Shipping
MEASUREMENT
195 x 433 x 370 mm
9 kg / 13 kgWEIGHT
DIMENSIONS H x W x D
Net / Shipping
SPEED
DISCRIMINATION
12010.10.28
CAPACITY
Cooling Rated 48,000 Btu/h (14.0 kW)
Max 51,100 Btu/h
Heating Rated 54,000 Btu/h (16.0 kW)
Max 57,000 Btu/h
INPUT
POWER
Cooling Rated 5.20 kW
Max. 5.98 kW
Heating Rated 5.07 kW
Max. 5.98 kW
CURRENT
Cooling Rated 23.1 A
Max. 26.5 A
Heating Rated 22.5 A
Max. 26.5 A
MODEL NAME
MAX. COMBINATION
MIN. COMBINATION
ELECTRICAL DATA
62,000 Btu/h
UTP-PY03A (3 branch)
UTP-PY02A (2 branch)
7,000 Btu/h
POWER CONSUMPTION 10 W
0.05 A
RUNNING CURRENT

High
DISCRIMINATION
Medium
Low
H x W x D 280 x 790 x 203 mm
FAN MOTOR
MEASUREMENTS
Net / Shipping 8.0 kg / 10.5 kg
MFD-12TYAN
1,050 r.p.m. 1,100 r.p.m. 1,200 r.p.m.
950 r.p.m. 980 r.p.m. 1,050 r.p.m.
850 r.p.m. 850 r.p.m. 880 r.p.m.
Quiet
Quiet
710 r.p.m. 710 r.p.m. 710 r.p.m.
1,050 r.p.m. 1,100 r.p.m. 1,200 r.p.m.
950 r.p.m. 980 r.p.m. 1,050 r.p.m.
850 r.p.m. 850 r.p.m. 910 r.p.m.
720 r.p.m. 720 r.p.m. 720 r.p.m.
INDOOR UNIT
COMPACT WALL MOUNTED
RSG12LJCARSG09LJCARSG07LJCAMODEL NAME
FAN SPEED
DIMENSIONS
WEIGHT
2.0 kW class 2.5 kW class 3.5 kW class
ELECTRICAL DATA
600 m3/h560 m3/h 660 m3/h
520 m3/h500 m3/h 560 m3/h
430 m3/h430 m3/h 450 m3/h
340 m3/h340 m3/h 340 m3/h
600 m3/h560 m3/h 660 m3/h
520 m3/h500 m3/h 560 m3/h
430 m3/h430 m3/h 470 m3/h
350 m3/h350 m3/h 350 m3/h
CAPACITY
AIR FLOW
Cooling
Heating
Cooling
Heating
High
Medium
36 dB(A)
Low
High
Medium
Low
Quiet
Quiet
High
Medium
Low
Cooling
Heating
High
Medium
Low
Quiet
Quiet
High
Medium
Low
29 dB(A)
37 dB(A)
29 dB(A)
40 dB(A)
30 dB(A)
25 dB(A) 25 dB(A) 25 dB(A)
32 dB(A) 33 dB(A) 36 dB(A)
36 dB(A)
29 dB(A)
37 dB(A)
29 dB(A)
40 dB(A)
31 dB(A)
25 dB(A) 25 dB(A) 25 dB(A)
32 dB(A) 33 dB(A) 36 dB(A)
NOISE LEVEL
22011.01.25

High
DISCRIMINATION
Medium
Low
H x W x D 320 x 998 x 228 mm
FAN MOTOR
MEASUREMENTS
Net / Shipping 14 kg / 18 kg
MFD-50RON
1,250 r.p.m. 1,480 r.p.m.
1,020 r.p.m. 1,220 r.p.m.
900 r.p.m. 1,020 r.p.m.
Quiet
Quiet
770 r.p.m. 900 r.p.m.
1,250 r.p.m. 1,430 r.p.m.
1,020 r.p.m. 1,220 r.p.m.
900 r.p.m. 1,020 r.p.m.
790 r.p.m. 900 r.p.m.
INDOOR UNIT
WALL MOUNTED
RSG24LFCARSG18LFCAMODEL NAME
FAN SPEED
DIMENSIONS
WEIGHT
5.0 kW class 7.0 kW class
ELECTRICAL DATA
1,120 m3/h920 m3/h
900 m3/h740 m3/h
740 m3/h620 m3/h
620 m3/h550 m3/h
1100 m3/h920 m3/h
900 m3/h740 m3/h
740 m3/h620 m3/h
620 m3/h550 m3/h
CAPACITY
AIR FLOW
Cooling
Heating
Cooling
Heating
High
Medium
43 dB(A)
Low
High
Medium
Low
Quiet
Quiet
High
Medium
Low
Cooling
Heating
High
Medium
Low
Quiet
Quiet
High
Medium
Low
33 dB(A)
49 dB(A)
37 dB(A)
31 dB(A) 33 dB(A)
37 dB(A) 42 dB(A)
44 dB(A)
33 dB(A)
48 dB(A)
37 dB(A)
31 dB(A) 33 dB(A)
37 dB(A) 42 dB(A)
NOISE LEVEL
32011.01.25

High
DISCRIMINATION
Medium
Low
H x W x D 245 x 570 x 570 mm
FAN MOTOR
MEASUREMENTS
Net / Shipping 15 kg / 18 kg
MFF-24RVL
590 r.p.m. 660 r.p.m. 790 r.p.m.
540 r.p.m. 580 r.p.m. 660 r.p.m.
490 r.p.m. 520 r.p.m. 570 r.p.m.
Quiet
Quiet
440 r.p.m. 460 r.p.m. 460 r.p.m.
590 r.p.m. 650 r.p.m. 840 r.p.m.
540 r.p.m. 580 r.p.m. 750 r.p.m.
490 r.p.m. 520 r.p.m. 650 r.p.m.
440 r.p.m.
590 r.p.m.
540 r.p.m.
490 r.p.m.
440 r.p.m.
590 r.p.m.
540 r.p.m.
490 r.p.m.
440 r.p.m. 460 r.p.m. 500 r.p.m.480 r.p.m.
600 r.p.m.
670 r.p.m.
740 r.p.m.
460 r.p.m.
540 r.p.m.
630 r.p.m.
730 r.p.m.
INDOOR UNIT
COMPACT CASSETTE
PANEL
RCG18LVLARCG12LVLA RCG14LVLARCG09LVLARCG07LVLAMODEL NAME
FAN SPEED
DIMENSIONS
WEIGHT
H x W x D 49 x 700 x 700 mm
MEASUREMENTS
Net / Shipping 2.6 kg / 4.5 kg
DIMENSIONS
WEIGHT
CG-UFFD
MODEL NAME
2.0 kW class 2.5 kW class 3.5 kW class 4.0 kW class 5.0 kW class
ELECTRICAL DATA
610 m3/h540 m3/h 750 m3/h680 m3/h
580 m3/h
490 m3/h
410 m3/h
700 m3/h
620 m3/h
550 m3/h
430 m3/h
530 m3/h490 m3/h 610 m3/h
470 m3/h440 m3/h 520 m3/h
410 m3/h390 m3/h 410 m3/h
610 m3/h540 m3/h 800 m3/h
530 m3/h490 m3/h 710 m3/h
470 m3/h440 m3/h 600 m3/h
410 m3/h390 m3/h 450 m3/h
CAPACITY
AIR FLOW
Cooling
Heating
Cooling
Heating
High
Medium
33 dB(A)
Low
High
Medium
Low
Quiet
Quiet
High
Medium
Low
Cooling
Heating
High
Medium
Low
Quiet
Quiet
High
Medium
Low
29 dB(A)
37 dB(A)
31 dB(A)
42 dB(A)40 dB(A)
35 dB(A)
32 dB(A)
29 dB(A)
40 dB(A)
37 dB(A)
34 dB(A)
29 dB(A)
33 dB(A)
27 dB(A) 28 dB(A) 29 dB(A)
31 dB(A) 33 dB(A) 37 dB(A)
34 dB(A)
29 dB(A)
37 dB(A)
31 dB(A)
44 dB(A)
37 dB(A)
27 dB(A) 28 dB(A) 30 dB(A)
32 dB(A)
540 m3/h
490 m3/h
440 m3/h
390 m3/h
540 m3/h
490 m3/h
440 m3/h
390 m3/h
33 dB(A)
29 dB(A)
27 dB(A)
31 dB(A)
34 dB(A)
29 dB(A)
27 dB(A)
32 dB(A) 33 dB(A) 40 dB(A)
NOISE LEVEL
42011.01.25

2011.01.25 5
H x W x D 600 x 740 x 200 mm
MEASUREMENT
DIMENSIONS
Net / Shipping 14 kg / 17 kg
WEIGHT
MODEL NAME
CAPACITY
INDOOR UNIT
FLOOR
RGG14LVCARGG12LVCARGG09LVCA
AIR
CIRCULATION
HIGH
(2 fan running)
650 m3/hr570 m3/hr
650 m3/hr600 m3/hr
570 m3/hr
520 m3/hr460 m3/hr 460 m3/hr
400 m3/hr390 m3/hr 360 m3/hr
270 m3/hr270 m3/hr 270 m3/hr
600 m3/hr
520 m3/hr480 m3/hr 480 m3/hr
390 m3/hr370 m3/hr 370 m3/hr
270 m3/hr270 m3/hr 270 m3/hr
4.0 kW class2.5 kW class 3.5 kW class
FAN MOTOR
DISCRIMINATION MFD-14TXN (upper) / MFD-14SXN (lower)
High 1,330 / 1,120 r.p.m.
Medium 1,100 / 930 r.p.m.
Low 890 / 750 r.p.m.
Quiet 660 / 560 r.p.m.
High 1,330 / 1,120 r.p.m.
FAN SPEED
(upper fan
/ lower fan)
Medium 1,140 / 970 r.p.m.
Low 940 / 800 r.p.m.
Quiet 660 / 560 r.p.m.
1,240 / 1,050 r.p.m.
1,050 / 890 r.p.m.
860 / 730 r.p.m.
660 / 560 r.p.m.
1,240 / 1,050 r.p.m.
1,080 / 920 r.p.m.
910 / 770 r.p.m.
660 / 560 r.p.m.
1,120 / 950 r.p.m.
960 / 820 r.p.m.
820 / 700 r.p.m.
660 / 560 r.p.m.
1,120 / 950 r.p.m.
1,000 / 850 r.p.m.
860 / 730 r.p.m.
660 / 560 r.p.m.
ELECTRICAL DATA
Cooling
Heating
Cooling
Heating
Cooling
Heating
Quiet
Low
22 dB(A)
31 dB(A)
Medium
High
Quiet
Low
Medium
High
Quiet
Low
Medium
High
Quiet
Low
Medium
High
38 dB(A)
44 dB(A)
22 dB(A)
28 dB(A)
34 dB(A)
39 dB(A)
22 dB(A)
30 dB(A)
36 dB(A)
42 dB(A)
22 dB(A)
33 dB(A)
39 dB(A)
44 dB(A)
22 dB(A)
30 dB(A)
35 dB(A)
39 dB(A)
22 dB(A)
32 dB(A)
38 dB(A)
42 dB(A)
NOISE LEVEL

High
DISCRIMINATION
Medium
Low
H x W x D 198 x 700 x 620 mm
FAN MOTOR
MEASUREMENTS
Net / Shipping 19 kg / 25 kg
MFG-14WV
1,260 r.p.m.1,160 r.p.m.
1,000 r.p.m.
940 r.p.m.
880 r.p.m.
1,160 r.p.m.
1,000 r.p.m.
940 r.p.m.
880 r.p.m.
1,340 r.p.m.
1,160 r.p.m. 1,240 r.p.m.
1,060 r.p.m. 1,140 r.p.m.
Quiet
Quiet
960 r.p.m. 1,030 r.p.m.
1,260 r.p.m. 1,340 r.p.m.
1,160 r.p.m. 1,240 r.p.m.
1,060 r.p.m. 1,140 r.p.m.
960 r.p.m. 1,030 r.p.m.
INDOOR UNIT
SLIM DUCT
RDG12LLTARDG09LLTA RDG18LLTARDG14LVTARDG07LLTA
MODEL NAME
FAN SPEED
DIMENSIONS
WEIGHT
2.0 kW class 2.5 kW class 3.5 kW class
ELECTRICAL DATA
4.0 kW class
650 m3/h600 m3/h550 m3/h
490 m3/h
470 m3/h
440 m3/h
550 m3/h
490 m3/h
470 m3/h
440 m3/h
600 m3/h550 m3/h
550 m3/h500 m3/h
480 m3/h450 m3/h
650 m3/h600 m3/h
600 m3/h550 m3/h
550 m3/h500 m3/h
480 m3/h450 m3/h
CAPACITY
AIR FLOW
Cooling
Heating
Cooling
Heating
High
Medium
28 dB(A)28 dB(A)
26 dB(A)
25 dB(A)
24 dB(A)
28 dB(A)
26 dB(A)
25 dB(A)
24 dB(A)
Low
High
Medium
Low
Quiet
Quiet
High
Medium
Low
Cooling
Heating
High
Medium
Low
Quiet
Quiet
High
Medium
Low
26 dB(A)
29 dB(A)
27 dB(A)
25 dB(A) 26 dB(A)
27 dB(A) 28 dB(A)
28 dB(A)
25 dB(A)
29 dB(A)
27 dB(A)
24 dB(A) 24 dB(A)
26 dB(A) 28 dB(A)
NOISE LEVEL
62011.01.25
5.0 kW class
MFG-24WV
198 x 900 x 620 mm
23 kg / 29 kg
1,380 r.p.m.
1,300 r.p.m.
1,220 r.p.m.
1,140 r.p.m.
1,380 r.p.m.
1,300 r.p.m.
1,220 r.p.m.
1,140 r.p.m.
940 m3/h
880 m3/h
820 m3/h
750 m3/h
940 m3/h
880 m3/h
820 m3/h
750 m3/h
32 dB(A)
30 dB(A)
29 dB(A)
31 dB(A)
33 dB(A)
31 dB(A)
29 dB(A)
32 dB(A)
1,560 r.p.m.
1,400 r.p.m.
1,240 r.p.m.
1,030 r.p.m.
1,560 r.p.m.
1,400 r.p.m.
1,240 r.p.m.
1,030 r.p.m.
800 m3/h
700 m3/h
600 m3/h
480 m3/h
800 m3/h
700 m3/h
600 m3/h
480 m3/h
32 dB(A)
28 dB(A)
26 dB(A)
30 dB(A)
33 dB(A)
28 dB(A)
25 dB(A)
30 dB(A)

High
DISCRIMINATION
Medium
Low
H x W x D 199 x 990 x 655 mm
FAN MOTOR
MEASUREMENTS
Net / Shipping 27 kg / 36 kg
MFH-24RVL
1,380 r.p.m. 1,460 r.p.m.
1,300 r.p.m. 1,360 r.p.m.
1,220 r.p.m. 1,260 r.p.m.
Quiet
Quiet
1,140 r.p.m. 1,180 r.p.m.
1,380 r.p.m. 1,460 r.p.m.
1,300 r.p.m. 1,360 r.p.m.
1,220 r.p.m. 1,260 r.p.m.
1,140 r.p.m. 1,180 r.p.m.
INDOOR UNIT
FLOOR / CEILING
RYG18LVTARYG14LVTAMODEL NAME
FAN SPEED
DIMENSIONS
WEIGHT
4.0 kW class 5.00 kW class
ELECTRICAL DATA
1330 m3/h940 m3/h
1240 m3/h880 m3/h
1100 m3/h820 m3/h
1030 m3/h750 m3/h
1330 m3/h940 m3/h
1240 m3/h880 m3/h
1100 m3/h820 m3/h
1030 m3/h750 m3/h
CAPACITY
AIR FLOW
Cooling
Heating
Cooling
Heating
High
Medium
32 dB(A)
Low
High
Medium
Low
Quiet
Quiet
High
Medium
Low
Cooling
Heating
High
Medium
Low
Quiet
Quiet
High
Medium
Low
30 dB(A)
33 dB(A)
30 dB(A)
29 dB(A) 29 dB(A)
31 dB(A) 32 dB(A)
33 dB(A)
31 dB(A)
35 dB(A)
32 dB(A)
29 dB(A) 29 dB(A)
32 dB(A) 34 dB(A)
NOISE LEVEL
72011.01.25

Unit : mm
DIMENSIONS
OUTDOOR UNIT
ROG45LAT8
ø28 : Cable port
ø28 : Cable port
50 70
142
21 65
Pipe port
ø28 : Cable port
111
120
50
55
Pipe port
21
155
ø28 : Cable port
65 15
Pipe & cable port
50 14
166
37024
40
410
51 : Gas
43 : Liquid
650 154
3648
3-7/16 (87)
3-1/2
(89)
970
Terminal blocks
914
21
8
11 (279)
25
5-5/32 (131)
297
526
24 12370
50
95
690
278
50
40
140
227
296
315
321
341
305
438
526
622
76
Top view
Front view
Side view
Detail A
Bottom view
2010.09.17 8
Rear view
Pipe port
ø28 : Cable port

BRANCH BOX
UTP-PY03A
214
216
256
469
469
432
433 75
195
85 68
95
256
372
148 25
75 70
95
9557
24
174
154
110
176
134
Unit : mm
Ceiling hangingIndoor unit side Outdoor unit side
Wall hanging
2010.10.28 9

BRANCH BOX
UTP-PY02A
Unit : mm
Ceiling hanging
Indoor unit side Outdoor unit side
Wall hanging
2010.10.28 10
216
469
469
432
433 75
195
85 68
95
256
372
148 25
75 7095
152
24
174
154
110
176
134

Unit : mm
INDOOR UNIT
COMPACT WALL MOUNTED
RSG07LJCA
RSG09LJCA
RSG12LJCA
Drain hose I.D. 17/32 in. (13.8 mm), O.D. 5/8 to 21/32 in. (15.8 to 16.7 mm)
Drain hose : L=20-15/32 in. (520mm)
205 : Installed state
*1: Vertical flap is downward
203
140 *1
10 *1
145 *1
790
280
94
52
78
ø65
for pipe inlet
ø65
for pipe inlet
Outline of unit
323
353 : Gas pipe
415 : Liquid pipe
327
237
450
209
62
18
47
47
184
215
18
82
2010.09.17 11

Unit : mm
2010.11.18 12
INDOOR UNIT
WALL MOUNTED
RSG18LFCA
RSG24LFCA
Drain hose I.D. 15/32 in. (12 mm) , O.D. 5/8 in. (16 mm)
Drain hose : L=26-3/8 in. (670mm)
998
439
438 397
320 : Unit size
269
20
37
26 x 11 hole
5 x 18 : 14holes
21 x 5 : 14holes
5 x 50 : 3holes 13 x 5 : 4holes
ø80 hole
ø5 : 65holes
1000 : Unit size
Piping inlet
for tapping screw
18 x 11 hole
18 x 11 hole
122 172
75
387
170
16
400
Unit
center
126
133
130
113
75
243
238
320
520
590
721
ø80 hole
Piping inlet
30
30
149
197
272
44
12
13
26 x 11 hole
outline of UNIT

INDOOR UNIT
COMPACT CASSETTE
RCG07LVLA
RCG09LVLA
RCG12LVLA
RCG14LVLA
RCG18LVLA
2010.09.15 13
Drain hose I.D. 3/4 in. , O.D. 1-1/16 in.
Unit : mm
530 : Hanging bolt position
102
135 250
700
700
75
30
30
262
540 : Hanging bolt position
Ceiling openings
• Decoration panel mounting state
Top view
150 to 200Min. 450
Min. 450
Maintenance space
Side view
215
123
58
114
146
108
102
245
30
40 99
Drain port
Ceiling
Drain port
Be sure to leave
maintenance space
for future service
at the designated
position.
Bottom view
30
49
Side view

INDOOR UNIT
RGG09LVCA
RGG12LVCA
RGG14LVCA
unit : mm
2010.09.17 14
740
200
600

INDOOR UNIT
SLIM DUCT
RDG07LLTA
RDG09LLTA
RDG12LLTA
RDG14LLTA
Rear view
View A
Top view Side view
Front view
Bottom view
(Drain hose)
Drain port
51
574
174
71
152
100 x 6 = 600
82
48
650
734
30
377
167
119
89
78
55
47
10
620
371
264
144
69
650
664
700
43
20
198
168
151
78 55
Drain hose I.D. 3/4 in. , O.D. 1-1/16 in.
Unit : mm
2010.09.17 15

INDOOR UNIT
SLIM DUCT
RDG18LLTA
Rear view View A
Top view Side view
Front view
Bottom view
(Drain hose)
Drain port
51774
174
71
152
87
56
850
934
100 x 8 = 800
30
377
167
119
89
78
55
47
10
620
371
264
144
69
850
864
900
43
20
198
168
151
78 55
Drain hose I.D. 3/4 in. , O.D. 1-1/16 in.
Unit : mm
2010.09.17 16

INDOOR UNIT
RYG14LVTA
RYG18LVTA
Unit : mm
990
900
500
655
530
200175
199
Rear view
172010.09.17

Compressor
Oil separator
Check
valve
Accumulator
Low pressure
sensor
High
pressure
sensor
High pressure
sensor switch
Sub-cool heat
exchanger
Heat exchanger
HEX
HEX
HEX
HEX
HEX
HEX
HEX
HEX
TH1
TH2
TH3 TH4
TH5
TH6
TH7
TH8
TH10
TH10
TH10
TH9
TH9
TH10
TH10
TH10
TH9
TH9
TH9
TH10
TH10
TH10
TH9
TH9
TH9
TH11
TH11
TH11
TH12
TH12
TH12
TH11
TH11
TH11
TH11
TH11
EEV1
EEV2
EEV3
EEV3
EEV3
EEV3
EEV3
EEV3
Solenoid
valve
4-way valve
3-way
valve
3-way
valve
Strainer
Strainer
Strainer
Strainer
Strainer
Strainer
Strainer
Strainer
Strainer
Strainer
Strainer
Strainer
Strainer
Strainer
Strainer
Strainer
Strainer
0
0
0
0TH12
TH12
TH12
0
0
0TH12
TH12
0
EEV4
EEV3
EEV3
TH9
EEV3
EEV4
EEV4
OUTDOOR UNIT
REFRIGERANT
SYSTEM
DIAGRAM
182010.06.14
BRANCH BOX 1
(primary type) INDOOR
UNIT 1
INDOOR
UNIT 2
INDOOR
UNIT 3
INDOOR
UNIT 4
INDOOR
UNIT 5
INDOOR
UNIT 6
INDOOR
UNIT 7
INDOOR
UNIT 8
BRANCH BOX 2
(secondary type)
BRANCH BOX 3
(secondary type)
OUTDOOR UNIT
EEV
EEV
Electric expansion valve
TH 1 Discharge temperature thermistor
TH 2 Compressor temperature thermistor
TH 8
TH 3
TH 4
TH 5
TH 6
TH 7
Suction temperature themistor
Outdoor temperature themistor
Heat exchanger (outlet) thermistor
Sub-cool heat exchanger (inlet) thermistor
Sub-cool heat exchanger (outlet) thermistor
Liquid temperature thermistor
BRANCH BOX
Electric expansion valve
TH 9 Branch box liquid temperature thermistor
TH 10 Branch box gas temperature thermistor
INDOOR UNIT
HEX Heat exchanger
TH 11 Heat exchanger (middle) thermistor
TH 12 Room temperature thermistor

PIPING LIMITATION
ADDITIONAL CHARGE
Additional refrigerant depends
on the liquid pipe diameter.
2010.10.28 19
a b
d
H2
H3
H4
H1
fgh
ijk
l
m
e
c
PIPE LENGTH
Total pipe length Less than 115 m Total
Between outdoor unit and the farthest indoor unit
Less than 70 m a + b + c + m
Between outdoor unit and branch boxes Less than 55 m
Less than 60 m
Less than 15 m
Less than 15 m
Less than 30 m
Less than 30 m
a + b + c + d + e
Between branch box and indoor unit
Total
f + g + h + i + j + k + l + m
Each unit 3 to 15 m f, g, h, i, j, k, l, m
Between outdoor unit and the first separation tube
More than 5 m
More than 5 m
a
Between outdoor unit and branch box
(When there is no separation tube) a + d
HEIGHT DIFFERENCE
Between outdoor unit and indoor unit H1
Between outdoor unit and branch box H2
Between branch boxes H3
Between indoor units H4
Liquid pipe diameter Additional charge
6.35 mm 21 g/m
9.52 mm 58 g/m
PIPE DIAMETER
Liquid pipe
Gas pipe
ROG45LAT8
9.52 mm
RSG18LFCA
RCG14,18LVLA
RDG18LLTA
RSG24LFCA
RSG07,09,12LJCA
RCG07,09,12LVLA
RDG07,09,12LVCA
15.88 mm
6.35 mm
12.7 mm 9.52 mm 12.7 mm 15.88 mm
Branch box
(Outdoor side)
Branch box
(Indoor side)