GAS FURNACES UGRJ-SERIES - High Efficiency Upflow Gas Furnace - Achiever 90

Oct 23, 2026

Uploaded by Aria

High-efficiency upflow gas furnaces from the Ruud Achiever 90 UGRJ-series are designed for utility rooms, closets, or alcoves, featuring a low 34-inch profile that allows vertical installation for applications typically requiring a horizontal furnace. The certified design includes an integrated control board with accessory hookups, quiet operation via an inducer system and slow-opening gas valve, and optional combustion air routing. Models use specified heat exchangers, induced draft, diagnostics, safety lockout features, and list technical specifications for input rates, heating capacity, blower dimensions, and pressures for U.S. and Canadian configurations.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages8

Reading Time20 min

AccessFree to download

Features

Standard equipment

Optional equipment

Physical data and specifications — upflow models (U.S. and Canadian)

FORM NO. G22-463 REV. 9 Supersedes Form No. G22-463 Rev. 8 GAS FURNACES UGRJ-SERIES Models with Input Rates from 45,000 to 120,000 BTU/HR [13.19 to 35.17 kW] (All Models 90% A. F. U. E.† or Above) ACHIEVER® 90 HIGH EFFICIENCY UPFLOW GAS FURNACES The Ruud® Achiever® 90 High Efficiency line of upflow gas furnaces are designed for utility rooms, closets, or alcoves. Because of the low-profile 34 inch height, the UGRJmodel can be used vertically to satisfy most applications that traditionally call for a horizontal furnace. The design is certified by CSA. Features ■ Low profile “34 inch” design is lighter and easier to handle and leaves room for optional accessories. ■ Left or right side gas, electric, and condensate drainage connections on upflow models. ■ Integrated control board manages all operational functions and provides accessory hookups for an electronic air cleaner. ■ A slow-opening gas valve and a specially designed inducer system make it one of the quietest furnaces on the market today. ■ Pre-paint galvanized steel cabinet. ■ Optional indoor or outdoor combustion air. In addition, combustion air may be piped to either the top or right side of the cabinet on all upflow models. A special molded fitting is provided to ease installation. ■ Control board diagnostics. A variety of cooling coils and plenums designed to use with the Achiever 90 gas furnaces are available as optional accessories for air conditioning models. ✝A.F.U.E. (Annual Fuel Utilization Efficiency) calculated in accordance with Department of Energy test procedures. ACHIEVER 90 HIGH EFFICIENCY UPFLOW GAS FURNACE REMOTE SENSOR HOT SURFACE IGNI PRIMARY AND SECONDARY HEAT EXCHANGER IN-SHOT BURNERS GAS VALVE AND MANIFOLD PRESSURE SWITCHES DRAFT INDUCER INTEGRATED FURNACE CONTROL STANDARD EQUIPMENT Completely assembled and wired; heat exchanger; primary: aluminized steel, secondary: 29-4C stainless steel; induced draft; pressure switches; redundant main gas control; blower compartment door safety switch; solid state time on/off blower control; limit controls; manual shut-off valve; 100% safety lock out; cool fan off delay; field selectable heat fan off delay; one hour automatic retry; self-test diagnostics; flame sense current diagnostics; electronic air cleaner connections; pressure regulator for natural and L. P. (propane) gases; transformer; direct drive, multi-speed blower motor. (Please note: a thermostat is not included as standard equipment.) OPTIONAL EQUIPMENT (See Accessory Page) 2 Ruud Air Conditioning Division NOTE: Furnace is not listed for use with fuels other than natural or L. P. (propane) gas. All models can be converted by a qualified distributor or local service dealer to use L. P. (propane) gas without changing burners. Factory approved kits must be used to convert from natural to L. P. (propane) gas and may be ordered as optional accessories from a parts distributor. For L. P. (propane) operation, refer to Conversion Kit Index Form. WARNING THIS FURNACE IS NOT APPROVED OR RECOMMENDED FOR USE IN MOBILE HOMES BEFORE PURCHASING THIS APPLIANCE, READ IMPORTANT ENERGY COST AND EFFICIENCY INFORMATION AVAILABLE FROM YOUR RETAILER. PHYSICAL DATA AND SPECIFICATIONS—UPFLOW MODELS U.S. and Canadian Models | MODEL NUMBERS UGRJ-SERIES | 04EMAES | 06EMAES | 07EMAES | 07EYBES | 07EYBGS | 09EZAGS | 09EZAJS | 10EZAGS | 10EZAJS | 12ERAGS | 12ERAJS | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | Input-BTU/Hr [kW] ➀ | 45,000
[13.19] | 60,000
[17.58] | 75,000
[21.98] | 75,000
[21.98] | 75,000
[21.98] | 90,000
[26.37] | 90,000
[26.37] | 105,000
[30.77] | 105,000
[30.77] | 120,000
[35.17] | 120,000
[35.17] | | Heating Capacity BTU/Hr [kW] | 42,000
[12.31] | 56,000
[16.41] | 70,000
[20.51] | 70,000
[20.51] | 70,000
[20.51] | 84,000
[24.61] | 84,000
[24.61] | 97,000
[28.43] | 97,000
[28.43] |

FAQs

What is the key design advantage of the UGRJ-series upflow furnace?

The low-profile 34-inch height enables vertical installation and easier placement in utility rooms, closets, or alcoves while meeting most applications that would normally call for a horizontal furnace.

What safety and control elements are included?

The furnace includes integrated furnace control, pressure switches, redundant main gas control, 100% safety lock out, limit controls, blower controls with time delays, and self-test diagnostics with flame sense current diagnostics.

Which fuel types are the furnaces approved to use?

The document states the furnace is not listed for use with fuels other than natural or L.P. (propane) gas, and conversion to L.P. requires factory approved kits.

Oct 23, 2026

Uploaded by Aria