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General| Category | Water Heater |
|---|---|
| Brand | Rheem |
| Model | Integrity 20 |
| Type | Tankless |
| Voltage | 120V |
| Wattage | 45W |
Describes the model type and its automatic operation for outdoor installation.
Explains the heating principle and temperature selection via controller.
Warns about scald risk and recommends temperature limiting devices for safety.
Provides instructions on how to safely turn off the water heater, e.g., for vacation.
Details the process of turning on the water heater after draining or initial setup.
Covers cleaning the unit and ensuring air inlets are clear for optimal performance.
Outlines crucial safety precautions regarding fuel, flammables, and hot surfaces.
Specifies the electrical requirements and safe handling of the power plug.
Explains the frost protection system, its limitations, and warranty implications for freezing damage.
Provides step-by-step instructions on how to drain the water heater, especially for frost protection.
Details available controllers (Kitchen, Bathroom) and their temperature setting ranges.
Explains how to adjust the water temperature using controller buttons (up/down).
Describes common controller functions like on/off, priority, and display panels.
Provides instructions on how to turn off the audible feedback sound from controller buttons.
Guides on operating the kitchen controller, including temperature selection and priority.
Specific operational notes, like turning off bathroom controllers from the kitchen unit.
Details how to operate bathroom controllers, their priority, and temperature limits.
Important operational points, like gaining priority and controller interaction.
Explains the water volume alarm feature for measuring dispensed water.
Steps to set and use the water volume alarm via the kitchen controller.
Troubleshooting steps for when the controller display is blank.
Diagnosing why only cold water is dispensed from hot taps.
Troubleshooting steps for incorrect water temperatures.
Addresses issues causing a lack of hot water flow.
Explains causes for inconsistent hot water flow.
Clarifies that fan run-on after operation is normal.
Explains that white vapor from the flue is normal.
Describes the function of the pressure relief valve and potential causes for discharge.
Suggests reviewing hot water usage and using flow control valves.
How to interpret and respond to error codes displayed by the water heater.
Specifies requirements for the physical placement and clearance of the water heater.
Instructions on how to securely mount the water heater unit to a wall.
Notes that additional flueing is not required for this model.
Details frost protection capabilities, installation limitations in cold areas, and warranty.
Covers water pressure requirements and suitability for different water types.
Mentions temperature limiting device recommendations for safe delivery.
Guidance on the hot water outlet connection, including unions and insulation.
Requirements for the cold water inlet connection, including valves.
Importance of insulating pipes in frost-prone areas.
How to connect the gas supply, including isolation valves.
Illustrates the layout of water and gas connections and associated components.
Table detailing pipe connection sizes for different models.
Specifics on pipe sizing and insulation for the hot water outlet.
Requirements for cold water inlet pipe sizing and valves.
Guidance on gas pipework, clearing foreign matter, and sizing.
Details the voltage, frequency, and required weatherproof power point.
Steps for initial startup and checking water flow after installation.
How to check and ensure correct gas inlet pressure for operation.
Procedure for checking and adjusting burner gas pressure for optimal performance.
Detailed steps for measuring and adjusting minimum gas pressure using a manometer.
Detailed steps for measuring and adjusting maximum gas pressure using a manometer.
Instructions for safely shutting down the unit after installation or for site work.
Introduces the types of Rheem controllers available for the water heater.
Specifies suitable and unsuitable locations for controller installation.
Step-by-step guide for wiring and mounting the kitchen controller.
Detailed procedure for wiring the kitchen controller to the base plate and wall.
Step-by-step guide for wiring and mounting bathroom controllers.
Detailed procedure for wiring bathroom controllers, including foam packing.
How to connect the controller cables to the water heater's electrical terminals.
Wiring diagram showing a typical setup with kitchen and bathroom controllers.
Wiring diagram for installing only the kitchen controller.
Wiring diagram for installing only bathroom controllers.
Wiring diagram for a setup without any controllers, with factory settings.
Discusses water quality considerations and suitability for bore or spring water.
Details the warranty periods and conditions for different components based on installation type.
Outlines the general terms and requirements for the warranty to be valid.
Lists conditions and damages that will void the warranty or incur charges.
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