Rinnai i120SN I-Series Solo Gas Boiler

Spec Sheet Install Manual

I-SERIES

The I- Series i120SN model features Rinnai’s exclusive self-cleaning stainless-steel heat exchanger coupled with a secondary flat plate heat exchanger. This heat-only model can deliver whole house heating to enhance your comfort. The i120SN provides an input rating of 120K Btu. Fueled with either Natural Gas or Propane this Rinnai condensing gas boiler has obtained one of the highest AFUEs (Annual Fuel Utilization Efficiency) in the industry. Plus, the compact wall-mounted design saves space over traditional boilers.ilers.ditional boilers.

COMFORT & CONVENIENCE

• Servo based by-pass control for precise DHW temperature control
• Built-in recirculation logic for dedicated return and crossover modes
• Multiple heating zones
• Provides home heat only

• The i120SN condensing gas boiler heat-only model offers the comfort of whole home heating.
• This heat-only model offers an outdoor reset to optimize your home heating performance and features an integrated modulating pump, with an outdoor reset sensor (in the box)
• Excellent operational performance with 95% AFUE efficiency and Energy Star Most Efficient certified.
• Convenient control options with the ability to connect two zone pumps to the PCB
• Easy parameter settings and a user-friendly interface.
• Versatile venting options including 2-inch PVC up to 65 feet.
• Quick Natural Gas (NG) to Propane (LP) gas conversions (kit included)
• Stainless steel heat exchangers (primary and secondary) throughout boiler for unmatched performance and durability
• Delivers proven reliability with Residential Warranty: 12-Year Heat Exchanger, 5 Year Parts, 1-Year Labor.

* It is recommended that a trained and qualified professional who has attended a Rinnai training class complete the installation. The warranty may be voided due to any improper installation.

— Installation and service must be performed by a licensed professional.

Manufacturer Trade Model Number - U.S. i120SN
Product Depth 10.9 in / (276 mm)
Product Height 26.4 in / (671 mm)
Product Width 18.5 in / (471 mm)
Product Weight 59.2 lb / (27 kg)
1/2" Gas Line Compatible Yes
Installation Type Indoor Only
Recirculation Capable No
Residential Energy Star Yes
BIM Data Required Yes
Max Heating Input 120,000 BTU/h/ (35.1 kWh)
Minimum Heating Input 15,000 BTU / (4.3 kW)
Maximum Amperage 6 AMPS

Product Height
26.4 in / (671 mm)
Product Width
18.5 in / (471 mm)
Product Depth
10.9 in / (276 mm)
Product Weight
62.0 lb / (28 kg)
Shipping Depth (inches/mm)
14.6 in / (370 mm)
Shipping Height (inches/mm)
33.5 in / (852 mm)
Shipping Width (inches/mm)
21.7 in / (552 mm)
Shipping Weight (lbs/kg)
68.3 lb / (31 kg)
Warranty - Standard for Residential
12 yrs on Heat Exchanger/ 5 years on Parts/ 1 Year on Labor
Warranty - Standard for Commercial
5 yrs on Heat Exchanger/ 5 years on Parts/ 1 Year on Labor