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General| Model | REU-1110FFU-E |
|---|---|
| Fuel Type | Natural Gas |
| Minimum Activation Flow Rate | 0.4 GPM |
| Electrical Requirements | 120V AC, 60Hz |
| Ignition System | Electronic |
| Venting | Direct Vent |
| Category | Tankless Water Heater |
| Type | Condensing, Indoor |
| Heating Capacity | 199, 000 BTU |
| Maximum Input | 199, 000 BTU/h |
| Minimum Input | 19, 500 BTU/hr |
| Gas Consumption (Max) | 199, 000 BTU/h |
| Temperature Range | 98°F - 140°F |
| Water Pressure Range | 15 - 150 PSI |
| Dimensions | 23.6 x 13.8 x 9.4 inches |
| Dimensions (H x W x D) | 23.6 x 13.8 x 9.4 inches |
| Safety Features | Freeze protection, overheat protection, flame failure device |
User obligations and guidelines for safe operation and maintenance of the water heater.
Warnings about corrosive compounds in the air affecting internal components.
Immediate actions to take if a gas leak is suspected for safety.
Dangers of scalding from excessively hot water, especially for vulnerable users.
Recommended actions and precautions to prevent hot water scalds and ensure safe use.
Importance of testing water temperature before use to prevent burns.
Procedures for preventing freezing and safety advice for the flue outlet.
Detailed explanation of the control panel buttons, monitor, and LEDs for temperature adjustment.
Steps for turning the water heater on, off, and how it functions with taps.
How to set and monitor the desired water temperature using the control panel.
Mandatory annual servicing by a qualified engineer for safety and performance.
Instructions for cleaning the exterior and internal water filter.
Guidance on diagnosing and resolving common operational issues like no start or cold water.
Specific instructions for installing and resetting the unit with circulation pumps.
Legal and regulatory requirements for installing gas appliances in the UK.
Steps for checking the appliance for damage and ensuring all parts are present.
Describes the sequence of events from ignition to water delivery.
Explains the ignition process, temperature control, and standby mode.
Explains the modulating valve, solenoid valves, and flame rod functions.
Details the thermal fuse, overheat safety switch, and combustion fan.
Describes the function of the water flow controller and its components.
Guidelines for selecting the best location and mounting the appliance securely.
Specifies minimum distances from walls and other objects for safety and servicing.
Details on water pressure, pipe sizing, and conditioning for hard water areas.
Instructions for connecting water inlets/outlets, gas supply, and electrical power.
Requirements for unvented kits and safety relief valve discharge.
Further guidance on gas pipe sizing and electrical connection regulations.
Rules for installing room-sealed appliances and ventilation requirements.
Details on ventilation for compartments and limitations on flue length.
Key warnings and regulatory standards for flue installation.
Guidance on positioning the flue terminal according to BS5440-1.
Explanation of dip switch functions for gas type, programming, and combustion.
How to configure dip switches for different gas types and operating modes.
Specific measurement points and expected values for diagnosing faults.
Readings for transformer voltages and resistances for troubleshooting.
Statement confirming the product complies with relevant EU directives.
Verifies temperature control settings and customer explanation.
Checks filters, unvented kits, and hot water delivery at outlets.
Confirms flue compliance, condensate drain, and overall installation standards.
Step-by-step guide to removing the front cover for service access.
Instructions for safely removing the burner unit and manifold.
Procedures for accessing and removing the fan motor and flame rod.
Outlines defects in materials or workmanship covered by the Rinnai warranty.
Details how to obtain service and what is not covered by the warranty.
Provides Rinnai UK's address, telephone, fax, email, and website.
Fields to record the model number, serial number, and date of purchase.
