Hayward W3H135FDP
Hayward W3H135FDP H-Series Propane Pool Heater User Manual
Model: W3H135FDP
1. Introdución
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Hayward W3H135FDP H-Series Propane Pool Heater. Please read this manual thoroughly before attempting to install or operate the heater. Keep this manual for future reference.
The Hayward H-Series heater is designed for heating above-ground pools using propane gas. It features a durable cupro nickel heat exchanger, an intuitive electronic control panel, and forced-draft combustion for reliable performance in various weather conditions.

Fronte view of the Hayward W3H135FDP H-Series Propane Pool Heater, highlighting its 135,000 BTU capacity, propane fuel type, and suitability for above-ground pools.
2. Información importante de seguridade
AVISO: A instalación, axuste, alteración, servizo ou mantemento inadecuados poden causar danos materiais, lesións ou a morte. Lea atentamente as instrucións de instalación, funcionamento e mantemento antes de instalar ou reparar este equipo.
- Desconecte sempre a alimentación antes de realizar o servizo.
- Garantir unha ventilación adecuada ao redor do quentador.
- Non almacene nin use gasolina ou outros vapores e líquidos inflamables nas proximidades deste ou de calquera outro aparello.
- A instalación e o servizo deben ser realizados por un instalador cualificado, axencia de servizos ou provedor de gas.
- Este aquecedor está deseñado para propane gas only. Do not attempt to use natural gas.
- Manter os nenos e as mascotas afastados do aquecedor.
3. Contido do paquete
Verify that all components are present before beginning installation. If any parts are missing or damaged, do not proceed with installation and contact Hayward customer support.
- Hayward W3H135FDP H-Series Propane Pool Heater unit
- Manual de usuario (este documento)
- Installation hardware (specific items may vary, refer to packing list)
4. Configuración e instalación
Installation must comply with all local codes and ordinances. In the absence of local codes, refer to the National Fuel Gas Code (ANSI Z223.1/NFPA 54) or the Natural Gas and Propane Installation Code (CSA B149.1).
4.1 Requisitos de localización
- Install the heater outdoors, on a level, non-combustible surface.
- Maintain adequate clearances from combustible materials and other equipment. Refer to the heater's data plate for specific clearance requirements.
- Ensure the location allows for proper ventilation and drainage.
- Avoid locations where the heater may be exposed to excessive wind or spray from the pool.
4.2 Conexións de fontanería
Connect the heater to your pool's filtration system. The heater should be installed after the filter and before any chemical feeders.
- Use appropriate plumbing fittings and sealants to prevent leaks.
- Ensure proper water flow through the heater. Insufficient flow can cause damage.

Lado view of the heater, illustrating the plumbing inlet/outlet and the forced-draft combustion system.
4.3 Gas Connections (Propane Only)
IMPORTANTE: This heater is factory-set for propane gas. Do not attempt to convert it to natural gas. Gas connections must be made by a qualified professional.
- Connect the propane supply line to the heater's gas inlet.
- Ensure all gas connections are tight and leak-free. Use a leak detection solution to check for leaks.
- Install a manual gas shut-off valve upstream of the heater.
4.4 Conexións eléctricas
Electrical wiring must be performed by a qualified electrician in accordance with all local codes and the National Electrical Code (NFPA 70).
- Asegúrese de que o calefactor estea correctamente conectado á terra.
- Connect the heater to a dedicated circuit with appropriate overcurrent protection.
5. Instrucións de funcionamento
5.1 Inicio inicial
- Ensure the pool pump is running and there is adequate water flow through the heater.
- Open the manual gas shut-off valve to supply propane to the heater.
- Turn on the electrical power to the heater.
- The electronic control panel will illuminate.
5.2 Setting Desired Temperature
Use the intuitive electronic control panel to set your desired pool temperature.
- Press the "Mode" button to select the pool heating function.
- Use the up/down arrow buttons to adjust the target temperature.
- The heater will automatically ignite and begin heating the water to the set temperature.

The electronic control panel for setting and monitoring pool temperature.
5.3 Apagar o quentador
- To temporarily stop heating, turn off the heater via the control panel.
- For extended shutdown or servicing, close the manual gas shut-off valve and turn off the electrical power to the heater.
6. Mantemento
Regular maintenance ensures optimal performance and longevity of your Hayward H-Series heater. Always disconnect power and gas supply before performing any maintenance.
6.1 Comprobacións de rutina
- Mensual: Inspect the area around the heater for debris, obstructions, or signs of leaks.
- Seasonally: Check the heat exchanger for scale buildup or corrosion. If necessary, clean according to manufacturer guidelines or consult a qualified service technician.
- Ensure proper water chemistry in your pool to prevent damage to the heater's components.
6.2 Invernización
In areas subject to freezing temperatures, proper winterization is crucial to prevent damage.
- Turn off the heater and disconnect both electrical power and gas supply.
- Drain all water from the heater's plumbing and heat exchanger. Use a shop vacuum or air compressor to ensure all water is removed.
- Store the heater in a dry, protected area if possible, or cover it with a weather-resistant cover.
7 Solución de problemas
Antes de contactar co servizo de atención ao cliente, volva aview os seguintes problemas e solucións comúns.
| Problema | Causa posible | Solución |
|---|---|---|
| O quentador non se acende. | No gas supply, low water flow, electrical issue, faulty igniter. | Check gas valve, ensure pump is running, verify power, consult service technician. |
| O quentador acéndese e apágase con frecuencia. | Insufficient water flow, dirty filter, air in system, oversized heater. | Check pump and filter, bleed air from system, consult pool professional. |
| Error code displayed on panel. | Fallo específico do sistema. | Refer to the heater's specific error code list in the full manual or contact support. |
| Auga que non quenta. | Incorrect temperature setting, low gas pressure, heat exchanger issue. | Verify temperature setting, check gas supply, contact service technician. |
If troubleshooting steps do not resolve the issue, contact Hayward customer support or a qualified service professional.
8. Especificacións
- Modelo: W3H135FDP
- Tipo de combustible: Gas propano
- Entrada de BTU: 135,000 BTU/h
- Eficiencia térmica: 82 %
- Intercambiador de calor: Cupro Nickel
- Dimensións (L x W x H): Aproximadamente 30.3 x 21.4 x 22.6 polgadas (77 x 54.4 x 57.4 cm)
- Peso do artigo: Aproximadamente 117.5 libras (53.3 kg)
- Requisitos eléctricos: Consulte a etiqueta do produto para o volume específicotage e ampera.
- Emisións de NOx: Low NOx (meets clean air quality standards)

Product dimensions and weight for the Hayward W3H135FDP H-Series Pool Heater.

Varios views of the Hayward W3H135FDP H-Series Pool Heater, illustrating its design from different angles.
9. Garantía e soporte
Hayward provides a limited warranty for its products. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Hayward websitio.
For technical assistance, parts, or service, please contact Hayward customer support:
- Websitio: www.hayward.com
- Teléfono: Refer to the Hayward websitio para os números de contacto rexionais.
When contacting support, please have your model number (W3H135FDP) and serial number ready.
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