Rinnai Sensei N-Series Service Presentation page 111

Cascading Multiple Units – Commercial ONLY
A single cascade cable accessory is all that is needed to connect two commercial water heaters. Each cable
accessory includes:
- One cable 26 ft. (8 m) or 10 ft. (3 m) - Based on which length you order
- Two cascade jumpers.
Installation:
1. Connect one end of the Cascade Cable to the "Cascade OUT" accessory port on
the first (primary) water heater's PC Board.
2. Connect the other end of the Cascade cable to the "Cascade IN" accessory port
on the next (secondary) water heater's PC Board.
3. Repeat steps 1. and 2. for each subsequent water heater in the system.
4. Connect the "Cascade Jumper" (included with the cascade cable) to the open
accessory ports (open ports should be on the first and last water heater in the system).
5. Proceed to "Programming Cascade Communication" in the manual.
© 2015 Rinnai America Corporation
PROPRIETARY and CONFIDENTIAL
Enhancing Lives By Changing The Way Water Is Heated
111
Cascade IN
Cascade OUT
11/6/2018