Ruud Ultra SeriesTM Communicating, Modulating Equipped with the Comfort Control 2 System & Contour Comfort Control®
The Ruud Ultra Series™ 90 Plus High Efficiency, Energy Star line of upflow gas furnaces are designed for utility rooms, closets, or alcoves. Because of the low profile 34 inch height, the RGFG- model can be used vertically to satisfy most applications that traditionally call for a horizontal furnace. The design is certified by CSA.
Comfort Control 2 System™
Provides 28 on-board diagnostic codes and fault history codes by detecting system and electrical problems. “Call for Service” alert notification is sent to the thermostat to alert the homeowner of required service.
Serial Communication Enhanced
When installed with a Serial Communicating Condensing Unit and user interface control (RHC-TST550CMMS) 500 Series thermostat this unit offers 4 or 2 wire installation, auto-configuration, and diagnostic messaging with full communicating capability.
When used with a modulating or communicating thermostat, modulation rate between 40% and 100% of total capacity.
When used with a two-stage thermostat, furnace operates at 40% on first stage, and stages up to 65%, then 100% for second stage.
When used with a single-stage thermostat, furnace functions as a three stage furnace operating at 40%, 65%, and 100% of total capacity.
Reduced firing rates, electrically efficient ECM 3.0 motor, and solid doors provide the ultimate in quiet operation.
- Low speed constant fan
- Constant temperature rise for superior comfort
- Seven segment LED for system diagnostics
- Diagnostic history for troubleshooting
- Two-speed induced draft motor
- Direct spark ignition with remote sense
- Optional indoor or outdoor combustion air
How It’s Different and Why It’s Better.
While the Ruud Ultra Series TM 95% AFUE Modulating Gas Furnace equipped with the Comfort Control 2 System TM is a highly sophisticated heating product, the concept behind it is quite simple. A conventional furnace is either “off” or “on” at 100% capacity depending on the demand for heat. Thus, the temperature in your home goes up and down, varying as much as five degrees, while the furnace cycles. The Ruud Ultra Series TM 95% AFUE Modulating Gas Furnace equipped with the Comfort Control 2 SystemTM is seldom “off” and seldom “on” at 100%. Your Ruud Ultra Series TM 95% AFUE Modulating Gas Furnace equipped with the Comfort Control 2 System TMis so quiet, you may never know it’s on. And it’s so frugal with both gas and electricity, that it has perhaps the highest overall efficiency of any furnace.