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General| Fuel Type | Natural Gas |
|---|---|
| Water Connections | 3/4" NPT |
| Gas Connection | 3/4" NPT |
| Type | Tankless |
| Maximum BTU Input | 199, 000 BTU |
| Minimum BTU Input | 15, 000 BTU |
| Vent Size | 3" |
| Ignition System | Electronic |
| Warranty | 12 years heat exchanger, 5 years parts |
| Temperature Range | 98°F - 140°F |
| Temperature Range with MCC-91 controller | 98°F |
| Electrical Requirements | 120V AC |
Defines the appliance as a temperature controlled, continuous flow, gas hot water system.
Identifies the specific Rinnai model as REU-V2520FFUC-US.
Describes operation with or without remote controls in various rooms.
Specifies the exhaust system as direct vent and forced combustion.
Details the gas input rate range for Natural Gas or Propane.
Lists electrical requirements for the appliance and remote control.
Outlines power consumption for normal, standby, and anti-frost modes.
States the ignition system is direct electronic ignition.
Specifies hot water output capacity based on temperature rise.
Covers adjustable and default hot water temperature ranges.
Indicates compatibility with Natural or Propane gas types.
Notes that installation is for indoor use only.
Provides the Energy Factor for Natural Gas and Propane.
States the thermal efficiency for Natural Gas and Propane.
Lists required connections for gas, cold water, and hot water.
Describes the water flow control mechanism.
Specifies the acceptable water supply pressure range.
Explains the water temperature control mechanism as simulation feed forward and feedback.
Lists available remote control options including standard and optional models.
Specifies the cable type for remote controls as non-polarized two-core.
Details various safety features like flame failure rod, boiling protection, and fuses.
Provides required clearances from combustible materials for installation.
Provides required clearances from non-combustible materials for installation.
Specifies minimum gas supply pressure requirements for Natural Gas and Propane.
Lists manifold gas pressure for high and low fire settings for both gas types.
Notes compliance with California and Texas NOx Emission Rules.
Outlines the warranty terms for the water heater, including limited periods for parts and labor.
