Nordyne G6RC 90+ User Manual

Installation Instructions
These instructions are primarily intended to
assist qualified individuals experienced in
the proper installation of this appliance.
Some local codes require licensed installa-
tion/service personnel for this type of equip-
ment. Read all instructions carefully before
starting the installation.
DO NOT DESTROY. PLEASE READ CARE-
FULLY AND KEEP IN A SAFE PLACE FOR
FUTURE REFERENCE.
G6RC 90+, G6RD 93+ Upflow G6RL 90+ Downflow
G6RC Series 90+ Upflow Condensing Furnace
G6RD Series 93+ Upflow Condensing Furnace
G6RL Series 90+ Downflow Condensing Furnace
Residential Gas Furnaces
!
WARNING:
Improper installation, adjustment, al-
teration, service, or maintenance can
cause injury or property damage. Re-
fer to this manual for assistance. For
additional information consult a quali-
fied installer, service agency, or the
gas supplier.
!
FOR YOUR SAFETY:
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
!
FOR YOUR SAFETY:
WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch; do
not use any phone in your building.
• Immediately call your gas supplier
from a neighbor's phone. Follow the
gas supplier's instructions.
• If you cannot reach your gas supplier,
call the fire department.
• Extinguish any open flame.

Nordyne G6RC 90+ Specifications

General

Stages	Single Stage
Blower Motor	PSC
Ignition System	Hot surface ignition
Fuel Type	Natural Gas or Propane
Blower Type	Variable Speed
Heat Exchanger	Aluminized Steel

Summary

Residential Gas Furnaces Installation Instructions

Safety Warnings and Precautions

Crucial safety warnings and precautions for furnace installation and operation.

Installation Requirements and Codes

Clearances to Combustible Materials

Specifies minimum safe distances from furnace components to combustible surfaces.

Horizontal Installation Procedures

Location and Supply Air Plenum Installation

Guidelines for furnace placement and supply air plenum installation for G6RL models.

Circulating Air Supply

Venting and Combustion Air Requirements

Return Air Configuration

Guidance on connecting return air ductwork to various furnace configurations.

Confined Space Air Supply

Vent Pipe Sizing and Material

Vent Pipe Installation and Routing

Outdoor Vent Termination Location

Horizontal Vent Termination Details

Vertical Vent Termination and Protection

Condensate Drainage System

Gas Supply and Piping Installation

Gas Leak Check Procedure

Procedure for checking gas piping connections for leaks using approved methods.

Fuel and Altitude Conversion

Electrical Wiring Requirements

Line Voltage Wiring

Instructions for connecting the line voltage supply, including circuit protection and accessible switch requirements.

Start-Up and Adjustments

Low Voltage Wiring and Thermostat

Guidance on connecting thermostat wiring and ensuring proper polarity and grounding.

Furnace Start-Up Procedure

Step-by-step guide for initiating furnace operation after installation.

Firing Rate Verification and Adjustment

Methods for confirming and adjusting the furnace's gas input rate for optimal performance.

Temperature Rise Verification and Adjustment

Process for measuring and adjusting the temperature rise across the furnace heat exchanger.

Burner Operation Verification

Steps to check for proper burner ignition, flame characteristics, and extinguishment.

Description of Furnace Components

Supply Air Limit Switch Operation

Procedure to test the supply air limit switch for proper function during operation.

Furnace Maintenance Procedures

Sequence of Furnace Operation

Heating Mode Operation Sequence

Step-by-step description of the furnace's heating cycle sequence.

Cooling Mode Operation Sequence

Description of the furnace's operation when calling for cooling via the thermostat.

Fan Mode Operation Sequence

Explanation of how the furnace operates in fan-only mode.

Furnace Troubleshooting Guide

Twinning Two Furnaces

Installation and Performance Checklist