Rudd RGFG-06EMCK User Manual

MINIMUM 95% A.F.U.E.
90 PLUS COMMUNICATING
MODULATING UPFLOW GAS
FURNACES EQUIPPED WITH
THE COMFORT CONTROL

2

SYSTEM AND

CONTOUR

COMFORT CONTROL

®

The Rheem

Prestige Series

™ 90 Plus High Efficiency line of upflow gas fur-

naces 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.

Features

■ The

Comfort Control2System

™ 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 Com muni ­cat ing 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.

■ Heat exchanger is constructed of all stainless steel for maximum corro­sion resistance and thermal fatigue reliability.

■ Modulating Function: when used with a modulating or communicating
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, and 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% 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.

■ Hot surface ignition with remote sense.

■ Optional indoor or outdoor combustion air.

A variety of cooling coils and plenums designed to use with the

Prestige

Series

™ 90 Plus gas furnaces are available as optional accessories.

✝A.F.U.E. (Annual Fuel Utilization Efficiency) calculated in accordance with Department of Energy test

procedures.

FORM NO. G11-510 REV. 1

Supersedes Form No. G11-510

GAS FURNACES

RGFG- SERIES

Models with Input Rates
from 60,000 to 120,000 BTU/HR
[17.58 to 35.16 kW]

(All Models 95% A.F.U.E.† or Above)

Equipped with

Comfort Control2System

™

• Serial communication enabled

• Increased system reliability and efficiency

• 28 on-board diagnostic and operating codes

•

Active Protection

™

with homeowner

“Call for Service” alert

• Dual 7-segment LED display

RHC-TST550CMMS

Modulating Furnace Thermostat

■

The Rheem Dual 7-Segment LED Display easily shows sys­tem operating status codes and diagnostic codes.

■

The Status Indication
System Diagnostics feature
thermostat communication
capability and built-in diag­nostics. The thermostat com-

munication capability and
alerts the homeowner to any
necessary service require­ments. Faster, more accurate
service is provided by the built­in diagnostics, by providing the HVAC professional with depend­able information.

■

The fault recall feature will allow for the last six fault-codes
to be displayed, and will retain these codes even if power
failure occurs.

■

In order to save time and money, replacement automotive
style fuses can be utilized instead of replacing the entire
control board.

FEATURES & BENEFITS OF THE

COMFORT CONTROL2SYSTEM

™

2 Rheem Heating, Cooling and Water Heating

Rheem Heating, Cooling and Water Heating 3

WARNING

THIS FURNACE IS NOT APPROVED

OR RECOMMENDED

FOR USE IN MOBILE HOMES

PRIMARY
AND SECONDARY
HEAT EXCHANGER

IN-SHOT BURNERS

PRESSURE
SWITCHES

BLOWER ASSEMBLY WITH
ECM MOTOR

DRAFT INDUCER

INTEGRATED
FURNACE CONTROL

GAS VALVE

PRESTIGE SERIES

™

90 PLUS HIGH EFFICIENCY

MODULATING UPFLOW GAS FURNACE

REMOTE SENSOR

OPTIONAL EQUIPMENT

Side and bottom filter racks; return air cabinet for all sizes.
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.
Fossil Fuel Kits for use with Heat Pumps.
Communicating Thermostat System

STANDARD EQUIPMENT

Completely assembled and wired; heat exchanger; primary: 409 and aluminized
409 stainless steel, secondary: 29-4C stainless steel; induced draft; pressure
switches; redundant modulating main gas control; blower compartment door
safety switch; solid state time on/off blower control; limit controls; manual shut­off valve; 100% safety lock out; cool fan off delay; one hour automatic retry;
power and self-test diagnostics; flame sense current diagnostics; electronic air
cleaner connections; humidifier connections; humidifier on/off delay;
dehumidifier connection; low speed continuous fan option; transformer; direct
drive, ECM variable speed blower motor. (Please note: a thermostat is not
included as standard equipment. See “Accessories”)

INDUCER CONTROL MODULE

HOT SURFACE IGNITOR