Rheem RIWH18AVFJ, Design & Technical Manual, Page: 3 / 51

CONTENTS
Part 1. INDOOR UNIT....................................................................... 1
1. Specifications............................................................................................2
2. Dimensions................................................................................................3
2-1. Models:RIWH18AVFJ and RIWH24AVFJ................................................................... 3
3. Wiring diagrams ........................................................................................5
3-1. Models:RIWH18AVFJ and RIWH24AVFJ................................................................... 5
4. Capacity table............................................................................................6
4-1. Cooling capacity.......................................................................................................... 6
4-2. Heating capacity ......................................................................................................... 8
5. Fan performance .......................................................................................9
5-1. Air velocity distributions............................................................................................... 9
5-2. Airflow ....................................................................................................................... 12
6. Operation noise (sound pressure).........................................................14
6-1. Noise level curve....................................................................................................... 14
6-2. Sound level check point ............................................................................................ 15
7. Safety devices .........................................................................................16
8. External input and output.......................................................................17
8-1. External input ............................................................................................................ 17
8-2. External output.......................................................................................................... 19
9. Remote controller ...................................................................................20
9-1. Wireless remote controller ........................................................................................ 20
10. Function settings ....................................................................................22
10-1.Function settings by using remote controller............................................................ 22
10-2.Custom code setting for wireless remote controller.................................................. 28
11. Accessories .............................................................................................29
12. Optional parts..........................................................................................30
12-1.Controllers ............................................................................................................... 30
12-2.Others ...................................................................................................................... 30