Rheem RIWH09AVFJ Service manual

AIR CONDITIONER
Multi: 5 rooms type
REFRIGERANT R410A
INVERTER
DESIGN & TECHNICAL MANUAL
INDOOR
RIWH07AVFJ
RIWH09AVFJ
RIWH12AVFJ
RIWH15AVFJ
RIWH18AVFJ
RIWH24AVFJ
OUTDOOR
ROMH45AFXZJ
DR_MU015EM_01
2017.02.10

Notices:
• Product specifications and design are subject to change without notice for future improvement.
• For further details, please check with our authorized dealer.

CONTENTS
Part 1. INDOOR UNIT....................................................................... 1
1. Model lineup ..............................................................................................2
1-1. Indoor unit connection patterns................................................................................... 3
2. Specifications............................................................................................ 6
2-1. Wall mounted type ...................................................................................................... 6
3. Dimensions................................................................................................8
3-1. Wall mounted type ...................................................................................................... 8
4. Wiring diagrams ......................................................................................12
4-1. Wall mounted type .................................................................................................... 12
5. Air velocity and temperature distributions ...........................................14
5-1. Wall mounted type .................................................................................................... 14
6. Airflow......................................................................................................20
6-1. Wall mounted type .................................................................................................... 20
7. Noise level curve.....................................................................................22
7-1. Wall mounted type .................................................................................................... 22
7-2. Sound level check point ............................................................................................ 25
8. Electrical characteristics........................................................................ 26
9. Safety devices .........................................................................................27
10. External input and output.......................................................................28
10-1.External input........................................................................................................... 28
10-2.External output......................................................................................................... 30
11. Remote controller ...................................................................................33
11-1.Wireless remote controller (AR-RAH2U).................................................................. 33
11-2.Wireless remote controller (AR-REG1U).................................................................. 35
11-3.Wired remote controller (RXRNNUM: Optional part)................................................ 37
11-4.Simple remote controller (RXRSNUM: Optional part) .............................................. 42
12. Function settings ....................................................................................47
12-1.Indoor unit (setting by wireless remote controller).................................................... 47
12-2.Indoor unit (setting by wired remote controller) ........................................................ 60
12-3.Indoor unit (setting by simple remote controller) ...................................................... 63
12-4.Function details........................................................................................................ 67
12-5.Wired remote controller............................................................................................ 71
12-6.Simple remote controller .......................................................................................... 73
13. Accessories.............................................................................................74
13-1.Wall mounted type ................................................................................................... 74
14. Optional parts..........................................................................................76
14-1.Controllers ............................................................................................................... 76
14-2.Others ...................................................................................................................... 77
15. Indoor unit installation precautions ......................................................78

15-1.Place where prohibited for use................................................................................. 78
15-2.Points to remember when installing ......................................................................... 79
CONTENTS (continued)

Part 2. OUTDOOR UNIT................................................................. 81
1. Specifications.......................................................................................... 82
1-1. Model: ROMH45AFXZJ ............................................................................................ 82
2. Dimensions..............................................................................................83
2-1. Model: ROMH45AFXZJ ............................................................................................ 83
3. Installation space ....................................................................................84
3-1. Model: ROMH45AFXZJ ............................................................................................ 84
4. Refrigerant circuit ................................................................................... 87
4-1. Model: ROMH45AFXZJ ............................................................................................ 87
5. Wiring diagram ........................................................................................88
5-1. Model: ROMH45AFXZJ ............................................................................................ 88
6. Capacity table.......................................................................................... 89
6-1. Combinations............................................................................................................ 89
6-2. Cooling capacity........................................................................................................ 93
6-3. Heating capacity ..................................................................................................... 105
7. Capacity compensation rate for pipe length and height difference.. 115
7-1. Model: ROMH45AFXZJ .......................................................................................... 115
8. Additional charge calculation ..............................................................119
8-1. Model: ROMH45AFXZJ .......................................................................................... 119
9. Airflow.................................................................................................... 120
9-1. Model: ROMH45AFXZJ .......................................................................................... 120
10. Operation noise (sound pressure).......................................................121
10-1.Noise level curve.................................................................................................... 121
10-2.Sound level check point ......................................................................................... 121
11. Electrical characteristics...................................................................... 122
12. Safety devices .......................................................................................123
13. Function settings ..................................................................................124
13-1.Setting methods..................................................................................................... 124
13-2.Outdoor unit low noise operation function (option)................................................. 127
14. Check and test.......................................................................................128
14-1.Check run .............................................................................................................. 128
14-2.Test run.................................................................................................................. 134
14-3.Error code .............................................................................................................. 136
14-4.Pump down............................................................................................................ 139
15. Accessories...........................................................................................141
16. Outdoor unit installation precautions .................................................142
16-1.Place where prohibited for use............................................................................... 142
16-2.Points to remember when installing ....................................................................... 142
CONTENTS (continued)

Part 1. INDOOR UNIT
WALL MOUNTED TYPE:
RIWH07AVFJ
RIWH09AVFJ
RIWH12AVFJ
RIWH15AVFJ
RIWH18AVFJ
RIWH24AVFJ

1. Model lineup
Indoor unit
RIWH07AVFJ
RIWH09AVFJ
RIWH12AVFJ
RIWH15AVFJ
RIWH18AVFJ
RIWH24AVFJ
Outdoor unit
ROMH45AFXZJ
Indoor units that can be connected to each outdoor unit
●: Connectable / -: Not connectable
Outdoor unit Wall mounted
RIWH07—24AVFJ
kBtu Class 07 09 12 15 18 24
5 Rooms ROMH45AFXZJ ● ● ● ● ● ●
DESIGN & TECHNICAL MANUAL
- 2 -
MULTI TYPE 5 rooms type

1-1. Indoor unit connection patterns
5 rooms
ROMH45AFXZJ
No. room 1 room 2 room 3 room 4 room 5 total
1 18 18 — — — 36
2 12 24 — — — 36
3 15 24 — — — 39
4 18 24 — — — 42
5 24 24 — — — 48
6 7 7 24 — — 38
7 7 9 18 — — 34
8 7 9 24 — — 40
9 7 12 18 — — 37
10 7 12 24 — — 43
11 7 15 15 — — 37
12 7 15 18 — — 40
13 7 15 24 — — 46
14 7 18 18 — — 43
15 7 18 24 — — 49
16 9 9 18 — — 36
17 9 9 24 — — 42
18 9 12 15 — — 36
19 9 12 18 — — 39
20 9 12 24 — — 45
21 9 15 15 — — 39
22 9 15 18 — — 42
23 9 15 24 — — 48
24 9 18 18 — — 45
25 9 18 24 — — 51
26 12 12 12 — — 36
27 12 12 15 — — 39
28 12 12 18 — — 42
29 12 12 24 — — 48
30 12 15 15 — — 42
31 12 15 18 — — 45
32 12 15 24 — — 51
33 12 18 18 — — 48
34 12 18 24 — — 54
35 15 15 15 — — 45
36 15 15 18 — — 48
37 15 15 24 — — 54
38 15 18 18 — — 51
39 18 18 18 — — 54
40 7 7 7 15 — 36
41 7 7 7 18 — 39
42 7 7 7 24 — 45
43 7 7 9 12 — 35
44 7 7 9 15 — 38
45 7 7 9 18 — 41
46 7 7 9 24 — 47
47 7 7 12 12 — 38
48 7 7 12 15 — 41
49 7 7 12 18 — 44
50 7 7 12 24 — 50
- 3 -
MULTI TYPE 5 rooms type

ROMH45AFXZJ
51 7 7 15 15 — 44
52 7 7 15 18 — 47
53 7 7 15 24 — 53
54 7 7 18 18 — 50
55 7 9 9 9 — 34
56 7 9 9 12 — 37
57 7 9 9 15 — 40
58 7 9 9 18 — 43
59 7 9 9 24 — 49
60 7 9 12 12 — 40
61 7 9 12 15 — 43
62 7 9 12 18 — 46
63 7 9 12 24 — 52
64 7 9 15 15 — 46
65 7 9 15 18 — 49
66 7 9 18 18 — 52
67 7 12 12 12 — 43
68 7 12 12 15 — 46
69 7 12 12 18 — 49
70 7 12 15 15 — 49
71 7 12 15 18 — 52
72 7 15 15 15 — 52
73 9 9 9 9 — 36
74 9 9 9 12 — 39
75 9 9 9 15 — 42
76 9 9 9 18 — 45
77 9 9 9 24 — 51
78 9 9 12 12 — 42
79 9 9 12 15 — 45
80 9 9 12 18 — 48
81 9 9 12 24 — 54
82 9 9 15 15 — 48
83 9 9 15 18 — 51
84 9 9 18 18 — 54
85 9 12 12 12 — 45
86 9 12 12 15 — 48
87 9 12 12 18 — 51
88 9 12 15 15 — 51
89 9 12 15 18 — 54
90 12 12 12 12 — 48
91 12 12 12 15 — 51
92 12 12 12 18 — 54
93 12 12 12 18 — 54
94 12 12 15 15 — 54
95 7 7 7 7 7 35
96 7 7 7 7 9 37
97 7 7 7 7 12 40
98 7 7 7 7 15 43
99 7 7 7 7 18 46
100 7 7 7 7 24 52
101 7 7 7 9 9 39
102 7 7 7 9 12 42
103 7 7 7 9 15 45
104 7 7 7 9 18 48
105 7 7 7 9 24 54
106 7 7 7 12 12 45
DESIGN & TECHNICAL MANUAL
- 4 -
MULTI TYPE 5 rooms type

ROMH45AFXZJ
107 7 7 7 12 15 48
108 7 7 7 12 18 51
109 7 7 7 15 15 51
110 7 7 7 15 18 54
111 7 7 9 9 9 41
112 7 7 9 9 12 44
113 7 7 9 9 15 47
114 7 7 9 9 18 50
115 7 7 9 12 12 47
116 7 7 9 12 15 50
117 7 7 9 12 18 53
118 7 7 9 15 15 53
119 7 7 12 12 12 50
120 7 7 12 12 15 53
121 7 9 9 9 9 43
122 7 9 9 9 12 46
123 7 9 9 9 15 49
124 7 9 9 9 18 52
125 7 9 9 12 12 49
126 7 9 9 12 15 52
127 7 9 12 12 12 52
128 9 9 9 9 9 45
129 9 9 9 9 12 48
130 9 9 9 9 15 51
131 9 9 9 9 18 54
132 9 9 9 12 12 51
133 9 9 9 12 15 54
134 9 9 12 12 12 54
7: 7,000Btu/h, 9: 9,000Btu/h, 12: 12,000Btu/h, 15: 14,000Btu/h, 18: 18,000Btu/h,
24: 24,000Btu/h
- 5 -
MULTI TYPE 5 rooms type

2. Specifications
2-1. Wall mounted type
Model name RIWH07AVFJ RIWH09AVFJ RIWH12AVFJ RIWH15AVFJ
Power supply 208/230 V ~ 60 Hz
Available voltage range 187—264 V
Capacity Btu/h class 7,000 9,000 12,000 14,000
Input power W 15 17 22 28
Running current A 0.13 0.15 0.19 0.25
Fan
Airflow rate
Cooling
HIGH
CFM (m3/h)
330 (560) 353 (600) 388 (660) 430 (730)
MED 294 (500) 306 (520) 330 (560) 353 (600)
LOW 253 (430) 253 (430) 265 (450) 312 (530)
QUIET 182 (310) 182 (310) 182 (310) 212 (360)
Heating
HIGH 330 (560) 353 (600) 388 (660) 430 (730)
MED 294 (500) 306 (520) 330 (560) 362 (615)
LOW 253 (430) 253 (430) 277 (470) 330 (560)
QUIET 194 (330) 194 (330) 194 (330) 221 (375)
Type × Q'ty Cross flow fan × 1
Motor output W 30
Sound pressure level *
Cooling
HIGH
dB (A)
36 37 40 42
MED 32 33 36 38
LOW 29 29 30 33
QUIET 21 21 21 25
Heating
HIGH 36 37 40 42
MED 32 33 36 38
LOW 29 29 31 35
QUIET 22 22 22 27
Heat exchanger type
Dimensions (H × W × D) in (mm) Main: 12-5/8 × 24-13/16 × 13/16 (320 × 630 × 20)
Sub: 3-5/16 × 24-13/16 × 1/2 (84 × 630 × 13.3)
Fin pitch FPI Main: 23, Sub: 18
Rows × Stages Main: 2 × 20, Sub: 1 × 4
Pipe type Copper tube
Fin type Aluminum
Enclosure
Material Polystyrene
Color White
(Approximate color of MUNSELL N9.25 /)
Dimensions
(H × W × D)
Net in (mm) 10-5/8 × 34-1/4 × 8-1/16 (270 × 870 × 204)
Gross 10-5/8 × 36-7/16 × 13-1/4 (270 × 925 × 336)
Weight Net lb (kg) 19 (8.5)
Gross 24 (11)
Connection
pipe
Size Liquid in (mm) Ø1/4 (Ø6.35)
Gas Ø3/8 (Ø9.52) Ø1/2 (Ø12.70)
Method Flare
Drain hose Material PP + LLDPE
Size in (mm) Ø 9/16(I.D.), Ø 5/8 to Ø 11/16(O.D.) [Ø 13.8(I.D.), Ø 15.8 to Ø 16.7(O.D.)]
Operation range Cooling °F (°C) 64 to 90 (18 to 32)
%RH 80 or less
Heating °F (°C) 60 to 88 (16 to 30)
Remote controller type Wireless (Wired [option])
NOTES:
• The protective function might work when using it outside the operation range.
• *Sound pressure level:
– Measured values in manufacturer’s anechoic chamber.
– Because of the surrounding sound environment, the sound levels measured in actual installation conditions might be higher than the specified values here.
DESIGN & TECHNICAL MANUAL
- 6 -
MULTI TYPE 5 rooms type

Model name RIWH18AVFJ RIWH24AVFJ
Power supply 208/230 V ~ 60 Hz
Available voltage range 187—264 V
Capacity Btu/h class 18,000 24,000
Input power W 41 69
Running current A 0.32 0.53
Fan
Airflow rate
Cooling
HIGH
CFM (m3/h)
542 (920) 659 (1,120)
MED 436 (740) 530 (900)
LOW 365 (620) 436 (740)
QUIET 324 (550) 365 (620)
Heating
HIGH 542 (920) 647 (1,100)
MED 436 (740) 530 (900)
LOW 365 (620) 436 (740)
QUIET 324 (550) 365 (620)
Type × Q'ty Cross flow fan ×1
Motor output W 42
Sound pressure level *
Cooling
HIGH
dB (A)
43 49
MED 37 42
LOW 33 37
QUIET 31 33
Heating
HIGH 44 48
MED 37 42
LOW 33 37
QUIET 31 33
Heat exchanger type
Dimensions (H × W × D) in (mm) Main: 15-7/8 × 33-3/4 × 1-1/16 (378 × 832 × 26.6)
Sub: 3-5/16 × 33-3/4 × 1/2 (84 × 832 × 13.3)
Fin pitch FPI Main: 21, Sub: 18
Rows × Stages Main: 2 × 18, Sub: 1 × 4
Pipe type Copper tube
Fin type Aluminum
Enclosure
Material Polystyrene
Color White
(Approximate color of MUNSELL N9.25 /)
Dimensions
(H × W × D)
Net in (mm) 12-5/8 × 39-5/16 × 9-3/8 (320 × 998 × 238)
Gross 12-15/16 × 42-15/16 × 16-9/16 (329 × 1,090 × 420)
Weight Net lb (kg) 31 (14)
Gross 40 (18)
Connection pipe Size Liquid mm (in) Ø1/4 (Ø6.35)
Gas Ø1/2 (Ø12.70) Ø5/8 (Ø15.88)
Method Flare
Drain hose Material PVC
Size in (mm) Ø 1/2(I.D.), Ø 5/8(O.D.) [Ø 12(I.D.), Ø 16(O.D.)]
Operation range Cooling °F (°C) 64 to 90 (18 to 32)
%RH 80 or less
Heating °F (°C) 60 to 88 (16 to 30)
Remote controller type Wireless (Wired [option])
NOTES:
• The protective function might work when using it outside the operation range.
• *Sound pressure level:
– Measured values in manufacturer’s anechoic chamber.
– Because of the surrounding sound environment, the sound levels measured in actual installation conditions might be higher than the specified values here.
- 7 -
MULTI TYPE 5 rooms type

3. Dimensions
3-1. Wall mounted type
¢Models: RIWH07AVFJ, RIWH09AVFJ, RIWH12AVFJ, and RI-
WH15AVFJ
10-5/8 (270)
34-1/4 (870) 8-1/16 (204)
Outline of unit
Unit: in (mm)
[10-5/8 (270)]
1-5/16 (34)
8-9/16 (217)
8-1/4 (209)
2-15/16(74)
[34-1/4 (870)]
16-3/4 (426)
12-3/16 (310)
17-1/2 (444)
6-1/2 (165) 5-11/16 (144)
7 (178) 9-3/16 (233)
12-5/8 (321) 12-3/8 (315)
11-5/8 (295)
2-9/16 (65)
for pipe inlet
2-9/16 (65)
for pipe inlet
DESIGN & TECHNICAL MANUAL
- 8 -
MULTI TYPE 5 rooms type

Installation space requirement
Provide sufficient installation space for product safety.
Unit: in (mm
)
2 (45) or more
71 (1,800)
or more
3 (63) or more
Outline of unit
1 (25) or more
3 (52) or more
6 (144) or more
60 (1,500) or more
4 (86) or more
- 9 -
MULTI TYPE 5 rooms type

¢Models: RIWH18AVFJ and RIWH24AVFJ
39-5/16 (998)
9 (238)
12-5/8 (320)
39-5/16 (998)
Outline of unit
18-9/16 (471) 2-5/8 (67)
1-1/8 (28)
1-13/16 (46)
17-1/4 (438)2-3/8 (61) 4 (102)15-5/8 (397)
17 (432)
2-3/16 (56)
2-3/16 (56)
3/8 (10)
12-5/8 (320)
11/16 (17)
Ø 3-1/8 (80) hole
Piping inlet
Ø 3-1/8 (80) hole
Piping inlet
Unit: in (mm)
DESIGN & TECHNICAL MANUAL
- 10 -
MULTI TYPE 5 rooms type

Installation space requirement
Provide sufficient installation space for product safety.
Unit: in (mm)
3 (63) or more
4 (80) or more
3 (52) or more 3 (53) or more
4 (80) or more
Outline of unit
5 (120) or more
60 (1,500) or more
71 (1,800) or more
- 11 -
MULTI TYPE 5 rooms type

4. Wiring diagrams
4-1. Wall mounted type
¢Models: RIWH07AVFJ, RIWH09AVFJ, RIWH12AVFJ, and RI-
WH15AVFJ
DESIGN & TECHNICAL MANUAL
- 12 -
MULTI TYPE 5 rooms type

¢Models: RIWH18AVFJ and RIWH24AVFJ
- 13 -
MULTI TYPE 5 rooms type

5. Air velocity and temperature distributions
5-1. Wall mounted type
¢Model: RIWH07AVFJ
Measuring conditions Fan speed Operation mode
HIGH FAN
Top view
Vertical airflow direction louver: Up
Horizontal airflow direction louver: Center
7 (2.0)
3 (1.0) 2 (0.5)
2
1
0
1
2
Unit: ft/s (m/s)
(m)
(m)
012345678
7
3
0
3
7
(ft)
(ft)
0 3 7 10 13 16 20 23 26
9
29
Top view
Vertical airflow direction louver: Up
Horizontal airflow direction louver: Left & Right
7 (2.0)
7 (2.0) 2 (0.5)
2 (0.5)
3 (1.0)
3 (1.0)
10
7
3
0
3
7
10
(ft)
(ft)
0 3 7 10 13 16 20 23 26
3
2
1
0
1
2
3
Unit: ft/s (m/s)
(m)
(m)
01234567 89
29
Side view
Vertical airflow direction louver: Up
Horizontal airflow direction louver: Center
7 (2.0)
2 (0.5)
3 (1.0)
3
2
1
0
Unit: ft/s (m/s)
(m)
(m)
012345678
10
7
3
0
(ft)
(ft)
0 3 7 10 13 16 20 23 26
9
29
Side view
Vertical airflow direction louver: Down
Horizontal airflow direction louver: Center
2 (0.5)
7 (2.0)
3 (1.0)
3
2
1
0
Unit: ft/s (m/s)
(m)
(m)
012345678
10
7
3
0
(ft)
(ft)
0 3 7 10 13 16 20 23 26
9
29
DESIGN & TECHNICAL MANUAL
- 14 -
MULTI TYPE 5 rooms type