The Ruud RGGE, RGFG, and RGJF Ultra Series™ 90 Plus Communicating Modulating gas furnaces equipped with the Comfort Control2 System & Contour Comfort Control line of Upflow/Horizontal, & Dedicated Downflow, are designed for installation in closets, alcoves, utility rooms, or attics.

Additional Benefits

The Comfort Control2 System™

Provides advanced service-ability with over 28 on-board diagnostics & fault history codes by detecting system & electrical problems. “Call for Service” alert notification is sent to the thermostat to alert the homeowner of required service. This includes dual seven segments LED & diagnostic history for easier system diagnostics & troubleshooting.

Serial Communication Enhanced

When installed with a Serial Communicating Condensing Unit & user interface control 500 Series thermostat this unit offers 4 or 2 wire installation, auto-configuration, & diagnostic messaging with full communicating capability.

Motor & Blower Compartment

Energy efficient & quiet ECM 3.0 communicating motor.  An insulated blower compartment, a slow-open gas valve, specially designed 2-speed induced draft motor & blower motor make it one of the most reliable & quietest furnaces on the market today.

Modulating Function

When used with a modulating thermostat, modulation rate between 40% and 100% of total capacity.

Two-stage Function

When used with a two-stage thermostat, furnace operates at 40% on first stage, & stages up to 65%, then 100% for second stage.

Multistage Function

When used with a single-stage thermostat, furnace functions as a three stage furnace operating at 40%, 65% & 100% of total capacity.

Cabinet & Design

The units are constructed with Pre-paint galvanized steel cabinets for added reliability & durability. Solid doors & easy door removal & replacement makes for an easier time with service-ability.

Patented Heat Exchanger 

Primary heat exchanger constructed of aluminized steel and secondary heat exchanger constructed of stainless steel for maximum corrosion resistance and thermal fatigue reliability.

Direct Spark Ignition & Remote Sensor
The direct spark ignition with reduced firing rates is an efficient method of gas ignition while the remote flame sensor monitors the flame. For added safety & personal peace of mind the direct spark ignition with remote sensor will lock out system after trial for ignition if main burner fails to ignite.

Furnace Control

For added customer assurance, all models feature an integrated board & are equipped with humidifier & electronic air cleaner hookups for added heating capacity & efficiency.

Thermostat

Thermostat is compatible with single or two-stage thermostats. (For optimal performance, two-stage thermostats are recommended.)  A variety of cooling coils & plenums designed to use with (Ruud Ultra Series™ & Super Quiet 80™), two stage gas furnaces are available as optional accessories.

Air Quality & Control

Units are equipped with a low speed constant fan & constant temperature rise for superior comfort. Along with constant CFM & Dip switch settings for sale

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