HVACopediaRinnai air handler error codes
4 codes (0 faults, 4 normal display and menu codes), plus 1 settings tables.
| Code | Meaning | Severity / type |
|---|---|---|
| Configuration menu | Configuration menu | Menu / mode display |
| Installer menu | Installer menu (password protected) | Menu / mode display |
| Status menu | Status menu (operating parameters) | Menu / mode display |
| Troubleshoot menu | Troubleshoot menu (read operating parameters) | Menu / mode display |
Settings and specs
Clearances and closet return opening
Clearances · Air handler
| Item | Requirement |
|---|---|
| Unit casing (top, sides, back, front, bottom) | 0 in. to combustibles |
| Plenum and duct | 0 in. for first 36 in. (914 mm) and rest of ductwork |
| Service | 24 in. (610 mm) in front |
| Closet louvered return, minimum open area | 360 sq in. (0.23 sq m) for CAH050E and CAH050CE |
- If louver free area is unknown assume 25% for wood and 75% for metal louvers or grilles.
- Air filters (not supplied) must be listed Class 2 furnace filters.
Source: Rinnai Canadian Air Handler Installation and Operation Manual (600000023), Non-Ducted Return Closet Installation p.16
Models covered
CAH050CECAH050E
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.