Hi Delta Hydronic Boilers, 302C-902C

Raypak's family of Hi Delta Hydronic Boilers, 302C-902C, feature 84% efficiency, 2-stage operation, and is available in natural gas or propane variants.

Features:

All models Indoor/Outdoor certified.
84% Efficiency.
CAT I vertical venting, CAT III sidewall venting. No extractor required for sidewall applications up to 70ft on room air.
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. Meets all Low NOx regulations.
Available for natural gas or propane.
Cascade control of up to 8 units, no external sequencer required.
Cascade in parallel or sequential modulation modes.

Specifikim

- 100% Factory Fire-Tested
- Thermal Efficiency: 84%
- VERSA IC® modulating controller with LCD display
- Maximum Setpoint: 220°F (104.4°C)
- Maximum Outlet Temperature: 230°F (110°C)
- Minimum Non-Condensing Inlet Temperature: 105°F (40.6°C)
- Thermal Shock Proof Heat Exchanger
- Cascade up to 8 heaters - No External Sequencer Required
- Cascade in Parallel or Sequential Modulation Modes
- Full Safety Diagnostics with Fault History
- PolyTuf Powder-Coated Cabinet
- No Combustible Floor Shield Required
- Fan-Assisted
- Limited 20-Year Thermal Shock Warranty
- Limited 10-Year Closed-System Heat Exchanger Warranty
- Patented Burner Security Blanket
- SCAQMD Rule 1146.2 Certified, Low NOx < 20 ppm
- Proudly Assembled in the USA