Hi Delta®
Sealed Combustion Boilers
& Water Heaters

Decades of expertise and technological innovations went into creating the Hi Delta boiler, a product which incorporates features sought after by engineers, installers and end-users alike. The patented burner “security blanket,” an ingenious enhancement that provides a perfected air-gas pathway for complete combustion, makes the Hi Delta the most adaptable sealed-combustion boiler on the market today. Adding to the Hi Delta’s ease of use is the Universal Diagnostic Board (UDB). This key enhancement allows a local technician to quickly review the unit’s entire fault history and make any necessary repairs or adjustments.

Every Hi Delta is factory-fire tested, assuring reliable start-up upon installation. When installed indoors, the Hi Delta’s versatility is revealed in smaller vent diameters, direct-venting and the convenience of stacking without an increased footprint.

Key Features

• 18 models from 120,000 to 2,340,000 BTUH
  
• Efficiency
  a) Boilers - 84% standard; 87% optional on Models 302A-2342A
  b) Water Heaters – 85% standard
  c) 98% condensing system available (See Hi Delta with CHX)
  
• 105ºF minimum inlet water capability on standard models; 120°F on 87% boilers
  
• Copper fin tube heat exchanger; Cupro-Nickel available
  
• Bronze headers standard on water heaters, optional on boilers
  
• Sidewall venting ready; No extractor needed for most applications
  
• Ducted combustion air-ready; TruSeal™ CSA-certified direct-vent available
  
• Status display and advanced diagnostic lights for easy troubleshooting
  
• Meets all NOx regulations

Options

• RayTemp – Demand-based set-point control maximizes energy savings in domestic hot water applications (See Cat. 5100.18)
  
• SureRack – Seismic-certified rack for two boilers (See Cat. 1000.16)
  
• TempTracker - 2- or 4-stage multi-function Raypak controller (See Cat. 5100.22) Models 302A-2342A
  
• Y-200 Boiler Sequencer - Provides additional functionality for multiple-boiler installations. Compatible with LonWorks® Building Management Systems (BMS) (See Cat. #5100.22)
  
• Cold Water Solutions - Protect heater from harmful condensation during start-up and continuous-run cold water applications. (See Cat. #1000.19) Models 302A-2342A
  
• Low Gas Pressure - CSA-certified for 4” WC supply gas pressure Models 302A-2342A

Specialty Models

Hi Delta with CHX
High-efficiency (98%) condensing heating system
Hi Delta with CHX achieves unequaled 98% thermal efficiency at full fire. It combines the reliability of the Hi Delta boiler with an optional CHX heat exchanger which prevents condensation in the heater’s primary combustion chamber. The result is an ultra high efficiency heater that lasts. (See. Cat. 1000.17) Models 402A-2002A

Hi Delta FlexGas™
Dual-Fuel boilers and water heaters
With its patented, CSA-certified rapid fuel switchover system, the Hi Delta FlexGas is an ideal solution for interruptible-fuel applications (natural/propane gas). (See Cat. #1000.20) Models 302A-2342A

For complete product literature see the Document Library