Rinnai Tankless RSC supply connection sizes
Rinnai Tankless RSC supply connection sizes: reference table for the tankless water heater (SENSEI series): a quick-reference table with notes.
Rinnai Tankless RSC supply connection sizes table
| Connection | Size |
|---|---|
| Gas | 3/4 in. NPT |
| Cold inlet | 3/4 in. NPT |
| Hot outlet | 3/4 in. NPT |
| Condensate drain | 1/2 in. NPT |
| Pressure relief valve | M33 thread |
How to use the Rinnai Tankless RSC supply connection sizes table
Find your exact model in the first column and read across the row. Values in the Rinnai Tankless RSC supply connection sizes table are a summary for quick reference; the rating plate on the unit and the manufacturer's manual for your model always decide. If your model is not listed, or a value looks different from what you see on the unit, check the manual before changing anything.
Notes
- The PRV and its adapter come in the box; PRV must be rated 150 psi and at least the heater Btu/h.
- Condensate drain line must stay at least 1/2 in. over its whole length.
Applies to: RSC199i, RSC160i (indoor); RSC199e, RSC160e (outdoor)
Rinnai models this applies to
Rinnai Tankless Water Heater error codes →
Source: Rinnai RSC SENSEI Installation and Operation Manual (100000773), Table 3 Supply Connections, p.14. Written in our own words as a summary; always check the original manual.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.