Hi Delta FlexGas Hydronic Boiler, 302CD-902CD

Although it is possible to convert almost any Hi Delta® unit from natural gas to propane, it does take time. The patented "FlexGas®" system allows the unit to be plumbed for BOTH fuels, switching from operation from one fuel to the other with the turn of a key - without shutting down the unit at all!

Features:

All models Indoor/Outdoor certified.
84% Efficiency. Cat I venting.
2-Stage Operation.
Patented burner "security blanket" enhances staged combustion, minimizes installation/start-up issues, and protects burners from metal fatigue.
105ºF minimum inlet water temperature.
Cast-iron headers with copper finned tube heat exchanger. Brass headers and cupro-nickel tubes available as options. AB 1953 compliant.
Sidewall venting capable. No extractor needed for most applications.
Ducted combustion air ready. TruSeal® CSA-Certified direct-vent available.
Status display and on-board diagnostic center, English, no codes.
Certified under SCAQMD Rule 1146.2. m Meets all Low NOx regulations.

Voce di capitolato

- 100% Factory fire-tested
- Fast, economical natural-to-propane gas switchover
- Thermal Efficiency: 84%
- Versa IC® Controller with LCD Display
- Maximum Setpoint: 220°F (104°C)
- Maximum outlet temperature: 240°F (115.6°C)
- Minimum non-condensing inlet temperature: 105°F (40.6°C)
- Thermal shock proof heat exchanger
- Limited 20-year thermal shock warranty
- Limited 10-year heat exchanger warranty
- Full safety diagnostics with fault history
- PolyTuf Powder-coated cabinet
- Fan-assisted
- Patented burner security blanket
- SCAQMD Rule 1146.2 certified, Low NOx < 20 ppm
- Cascade up to 8 heaters - no external sequencer required
- Cascade in parallel or sequential modulation modes
- Proudly assembled in the USA