1. Introducció
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. Informació de seguretat
ADVERTÈNCIA: La instal·lació, l'ajustament, l'alteració, el servei o el manteniment inadequats poden causar danys a la propietat, lesions o la mort. Llegiu atentament les instruccions d'instal·lació, funcionament i manteniment abans d'instal·lar o donar servei a aquest equip.
- Aquest aparell ha de ser instal·lat per un professional qualificat d'acord amb tots els codis i normatives locals.
- Ensure adequate ventilation is provided for the appliance.
- No emmagatzemeu materials inflamables a prop de l'escalfador d'aigua.
- Inspeccioneu regularment la unitat per detectar qualsevol signe de danys o fuites.
3. Producte acabatview
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. Components principals
- Pantalla digital: Shows current temperature and error codes.
- Botons de control: Adjust temperature settings and access functions.
- Bescanviadors de calor: Primary and secondary heat exchangers for efficient water heating.
- Sensor de flux: Detects water flow to activate the heating process.
- Overheat Film Wrap: Funció de seguretat per evitar el sobreescalfament.
4. Instal·lació
Professional installation is highly recommended for this appliance. Ensure all local codes and regulations are followed.
4.1. Llista de verificació prèvia a la instal·lació
- 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.
Figura 3: Example Installation in a Utility Closet
4.3. Ventilació
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 and Water Connections
- A 3/4-inch natural gas line is recommended for optimal performance.
- Ensure proper inlet and outlet piping connections.
- The unit requires an electrical power connection for operation.
5. Configuració
5.1. Inici inicial
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. Configuració de la temperatura
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. Instruccions de funcionament
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
Vídeo 2: Aquest vídeo ofereix una visió generalview 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. Manteniment
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.
- Inspecció anual: A qualified technician should inspect the unit's components, including heat exchangers, burners, and venting system.
- Descalcificació: Depending on water hardness, periodic descaling may be required to remove mineral buildup from the heat exchanger. Consult your technician for recommended frequency.
- Entrada d'aire net: Ensure the air intake is free from obstructions and debris.
8. Solució De Problemes
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.
| Problema | Causa possible | Solució |
|---|---|---|
| Sense aigua calenta | No gas supply, power outage, unit lockout, low water flow. | Check gas valve, electrical supply, reset unit, ensure adequate water flow. |
| L'aigua no és prou calenta | Temperature setting too low, excessive hot water demand, mineral buildup. | Increase temperature setting, reduce simultaneous hot water use, descale unit. |
| Es mostra el codi d'error | Error intern específic. | Refer to the full manual for specific error code definitions and troubleshooting steps. |
| S'ha detectat una fuita d'aigua | Internal leak, loose connection. | Shut off water supply, contact a qualified technician immediately. |
9. Especificacions
Below are the technical specifications for the Rheem RTGH-90DVLP-3 Liquid Propane Condensing Tankless Water Heater:
| Característica | Detall |
|---|---|
| Marca | Rheem |
| Número de model | RTGH-90DVLP-3 |
| Dimensions del producte | 17.7" d'amplada x 23.7" d'alçada x 9.8" de profunditat |
| Tipus de combustible | Propà líquid |
| Caudal màxim | 9 galons per minut (GPM) |
| BTU | Fins a 180,000 BTU |
| Temperatura màxima | 140 graus Fahrenheit |
| Eficiència | Super High Efficiency (Condensing) |
| Estil | Instal·lació interior |
| Tipus de muntatge | Mur |
| Voltage | 120 Volts |
| Pes de l'article | 59.9 lliures |
| Característica especial | Overheat Film Wrap |
| UPC | 662021564314 |
Figure 4: Rheem RTGH-90DVLP-3 Dimensions
Figure 5: Rheem RTGH Series Performance Guide (for sizing purposes only)
10. Garantia i Suport
The Rheem RTGH-90DVLP-3 is covered by the following manufacturer warranties:
- Laboral: 1 any
- Termocambiador: 15 anys
- Parts: 5 anys
For warranty claims, technical support, or service inquiries, please refer to the contact information provided in your product packaging or visit the official Rheem weblloc.
