Diamond® Series High Efficiency (PDH)
This condensing gas furnace series features ratings as high as 94.3% AFUE, long-lasting tubular primary heat exchanger, low-level combustion sound, and a proven integrated computerized control system. All Diamond® Series furnaces have been equipped with added safety features, as well as easy access for add-on cooling products. All components are enclosed in a corrosion-resistant, pre-painted steel cabinet.

Special Benefits

• Compact, easy-to-install, ideal height 45" cabinet, 90+ models.
• Hi-tech tubular aluminized steel primary heat exchanger.
• Secondary (condensing) heat exchanger of 29-4C high-grade stainless steel, 90+ models.
• Diamond Tough™ hot-surface ignition.
• 100% shut-off main gas valve and blower door safety switch for extra safety.
• Integrated control module for reliable, economical operation.
• Built-in, high-level self-diagnostics with fault code display.
• Install as two-pipe (sealed combustion) or single-pipe vent (using indoor combustion air), 90+ models.
• Top intake and vent connection allows installation in narrow locations.
• No special vent termination kit required.
• Full-height blower compartment allows side return application with no-return air box.
• Low unit amp requirement for easy replacement application.
• 24V, 40VA control transformer and blower relay supplied for add-on cooling.
• Easily connected power/control wiring.
• Solid bottom with removable panel allows easy application.
• Electronic hot surface ignition saves fuel costs, increases dependability and reliability.
• Induced combustion system with Inshot main burners for quiet, efficient operation.
• Timed-on, adjustable-off blower capability for maximum comfort.
• Blower-off delay for cooling SEER improvement.
• Protection from intake, exhaust, and condensate blockage.
• PSC multiple-speed, direct-drive motor with large, quiet blower.
• Easy access from front of unit for cleaning, maintenance, or service.
• High-velocity filter provided for field installation.