1. Einleitung
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your Rheem RTGH-90DVLP-3 Liquid Propane Condensing Tankless Water Heater. Please read all instructions carefully before installation or use.
The Rheem RTGH-90DVLP-3 is a Super High Efficiency indoor condensing liquid propane tankless gas water heater designed to deliver continuous hot water. It features Hot Start Programming to minimize cold water bursts and an Overheat Film Wrap for heat exchanger protection. Its compact, wall-mount design allows for installation in various spaces.
Figure 1: Rheem RTGH-90DVLP-3 Tankless Water Heater with Digital Display
2. Sicherheitshinweise
WARNUNG: Unsachgemäße Installation, Einstellung, Änderung, Service oder Wartung kann zu Sachschäden, Verletzungen oder Tod führen. Lesen Sie die Installations-, Betriebs- und Wartungsanweisungen sorgfältig durch, bevor Sie dieses Gerät installieren oder warten.
- Dieses Gerät muss von einem qualifizierten Fachmann gemäß allen örtlichen Vorschriften und Bestimmungen installiert werden.
- Ensure adequate ventilation is provided for the appliance.
- Brennbare Materialien dürfen nicht in der Nähe des Warmwasserbereiters gelagert werden.
- Überprüfen Sie das Gerät regelmäßig auf Anzeichen von Beschädigungen oder Lecks.
3. Produktüberschreitungview
The RTGH-90DVLP-3 unit is designed for indoor installation and features a digital display for temperature control and status monitoring. Key components include the heat exchangers, burners, flow sensor, and control board.
Figure 2: Key Features of the Rheem RTGH-90DVLP-3
3.1. Hauptkomponenten
- Digitaler Bildschirm: Shows current temperature and error codes.
- Bedientasten: Adjust temperature settings and access functions.
- Wärmetauscher: Primary and secondary heat exchangers for efficient water heating.
- Durchflusssensor: Detects water flow to activate the heating process.
- Overheat Film Wrap: Sicherheitsfunktion zur Vermeidung von Überhitzung.
4. Installation
Professional installation is highly recommended for this appliance. Ensure all local codes and regulations are followed.
4.1. Checkliste vor der Installation
- Verify inlet & exhaust connection sizes and required materials.
- Confirm maximum length of vent run allowed.
- Check if the unit can deliver your required water temperature in your region.
- Ensure required installed unit clearance is met.
4.2. Mounting and Clearances
The RTGH-90DVLP-3 is a wall-mounted unit. It offers industry-leading 1/2-inch side-to-side clearance and zero front and back clearance requirements, providing flexibility for installation in compact spaces like utility closets.
Abbildung 3: Bspample Installation in a Utility Closet
4.3. Entlüften
As a condensing unit, the RTGH-90DVLP-3 utilizes PVC for venting, simplifying the installation process compared to non-condensing models that require stainless steel piping.
4.4. Gas- und Wasseranschlüsse
- Für eine optimale Leistung wird eine 3/4-Zoll-Erdgasleitung empfohlen.
- Ensure proper inlet and outlet piping connections.
- The unit requires an electrical power connection for operation.
5. Einrichtung
5.1. Erstinbetriebnahme
After professional installation, follow the specific startup procedures outlined in the comprehensive installation manual provided with the unit. This typically involves purging air from the gas lines and checking for leaks.
5.2. Temperatureinstellungen
The available temperature settings range from 100°F to 140°F, with a default setting of 120°F. Adjust the desired temperature using the control buttons on the unit's digital display.
6. Bedienungsanleitung
The Rheem RTGH-90DVLP-3 provides continuous hot water on demand. When a hot water faucet is opened, the flow sensor activates the unit, and the control board determines the required heat based on inlet water temperature and flow rate. Burners ignite, and water is heated as it passes through the heat exchangers.
6.1. Hot Start Programming
This exclusive feature keeps the water heater in a ready state for 5 minutes after a faucet is turned off. This minimizes cold water bursts during back-to-back uses, such as washing dishes or taking multiple showers.
6.2. Overheat Film Wrap
The unit includes an Overheat Film Wrap for heat exchanger overheat protection. In the event of overheating, this safety feature will melt and shut down the unit to prevent damage.
6.3. How a Tankless Water Heater Works
Video 1: This video illustrates the internal workings of the Rheem RTGH-3 Condensing Tankless Water Heater, showing how water flows through the heat exchangers and how the unit adjusts to provide continuous hot water. It also highlights the Hot Start Programming feature.
6.4. Introducing Rheem Condensing RTGH Tankless Gas Water Heaters
Video 2: Dieses Video bietet einen Überblickview of the Rheem Condensing RTGH Tankless Gas Water Heater series, showcasing its modern design, efficiency, and key features like LeakGuard technology and flexible installation options.
7. Wartung
Regular maintenance is crucial for the longevity and efficiency of your tankless water heater. It is recommended to have the unit inspected and serviced annually by a qualified technician.
- Jährliche Inspektion: A qualified technician should inspect the unit's components, including heat exchangers, burners, and venting system.
- Entkalkung: Depending on water hardness, periodic descaling may be required to remove mineral buildup from the heat exchanger. Consult your technician for recommended frequency.
- Saubere Luftzufuhr: Ensure the air intake is free from obstructions and debris.
8. Fehlerbehebung
If you experience issues with your water heater, refer to the following common problems and solutions. For complex issues or if problems persist, contact a qualified service technician.
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Kein heißes Wasser | Keine Gasversorgung, Stromausfalltage, Geräteabschaltung, geringer Wasserdurchfluss. | Check gas valve, electrical supply, reset unit, ensure adequate water flow. |
| Wasser nicht heiß genug | Temperature setting too low, excessive hot water demand, mineral buildup. | Increase temperature setting, reduce simultaneous hot water use, descale unit. |
| Angezeigter Fehlercode | Spezifischer interner Fehler. | Refer to the full manual for specific error code definitions and troubleshooting steps. |
| Wasserleck erkannt | Internal leak, loose connection. | Shut off water supply, contact a qualified technician immediately. |
9. Spezifikationen
Below are the technical specifications for the Rheem RTGH-90DVLP-3 Liquid Propane Condensing Tankless Water Heater:
| Besonderheit | Detail |
|---|---|
| Marke | Rheem |
| Modellnummer | RTGH-90DVLP-3 |
| Technische Daten | 17.7 Zoll (B) x 23.7 Zoll (H) x 9.8 Zoll (T) |
| Kraftstoffart | Flüssiges Propan |
| Maximaler Durchfluss | 9 Gallonen pro Minute (GPM) |
| BTU | Bis zu 180,000 BTU |
| Maximaltemperatur | 140 Grad Fahrenheit |
| Effizienz | Super High Efficiency (Condensing) |
| Stil | Inneninstallation |
| Montagetyp | Wand |
| Bandtage | 120 Volt |
| Artikelgewicht | 59.9 Pfund |
| Besonderheit | Overheat Film Wrap |
| UPC | 662021564314 |
Figure 4: Rheem RTGH-90DVLP-3 Dimensions
Figure 5: Rheem RTGH Series Performance Guide (for sizing purposes only)
10. Garantie und Support
The Rheem RTGH-90DVLP-3 is covered by the following manufacturer warranties:
- Arbeit: 1 Jahr
- Wärmetauscher: 15 Jahre
- Teile: 5 Jahre
For warranty claims, technical support, or service inquiries, please refer to the contact information provided in your product packaging or visit the official Rheem webWebsite.
