RE140iN - Boiler Rinnai - Free user manual and instructions
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| Product Type | Gas-fired condensing boiler |
| Model | RE140iN |
| Brand | Rinnai |
| Energy Source | Natural gas or propane |
| Heat Output (Max) | 140,000 BTU/h (41 kW) |
| Efficiency (AFUE) | Up to 95% |
| Venting Type | Direct vent (PVC/PP) |
| Dimensions (H x W x D) | 33.5 x 17.5 x 13.5 inches (851 x 445 x 343 mm) |
| Weight (Empty) | Approx. 110 lbs (50 kg) |
| Water Connections | 3/4 inch NPT |
| Gas Connection | 1/2 inch NPT |
| Power Supply | 120 VAC, 60 Hz, 3 A |
| Key Features | Modulating burner, condensing technology, built-in pump, outdoor reset, touchscreen control |
| Safety Features | Flame rollout sensor, blocked vent switch, high limit control, freeze protection |
| Maintenance | Annual cleaning, check pressure, flush system if needed |
| Spare Parts / Repairability | Common parts available: heat exchanger, fan, gas valve, sensors |
| Warranty | 12 years heat exchanger, 5 years parts |
Frequently Asked Questions - RE140iN Rinnai
What is the ideal water pressure for the Rinnai RE140iN boiler?
The ideal water pressure is between 12-15 psi (0.8-1.0 bar) when cold. If it drops below 10 psi, you need to repressurize the system via the filling loop.
How do I reset the boiler after a lockout?
Press and hold the Reset button for 3 seconds on the control panel. If the boiler locks out repeatedly, check error codes and consult the manual.
What type of venting is required for the RE140iN?
It requires direct vent (sealed combustion) using PVC or polypropylene (PP) pipe. Vent length must not exceed 150 feet equivalent.
Can the RE140iN be used with a propane tank?
Yes, the boiler can be converted to propane using a conversion kit. The conversion must be performed by a qualified technician.
How often should I service my Rinnai RE140iN boiler?
Annual servicing by a professional is recommended. This includes cleaning the heat exchanger, checking vents, and testing safety controls.
What does error code '110' mean on my Rinnai boiler?
Error code 110 indicates ignition failure. Check gas supply, spark plug, and flame sensor. Reset the boiler after resolving the issue.
Is the boiler compatible with a smart thermostat?
Yes, the RE140iN supports outdoor reset and can be connected to a smart thermostat via its control interface.
How do I drain the boiler for winter storage?
Turn off power and gas, close isolation valves, attach a hose to the drain valve, and open the valve to drain water. Leave the air vent open.
What is the maximum operating temperature?
The maximum supply water temperature is 190°F (88°C). For typical operation, set it between 140-180°F (60-82°C).
Where can I find spare parts for the RE140iN?
Spare parts are available from Rinnai distributors or authorized dealers. Common parts include the heat exchanger, fan assembly, gas valve, and control board.
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USER MANUAL RE140iN Rinnai
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Product information
Brand : Rinnai
Model : RE140iN
Category : Boiler