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USER'S INFORMATION MANUAL
GR4G(*) Series - 090/120/150/180
Single Package Gas Heating /Electric Cooling Rooftop Unit
GR4G* 090 Series Shown
Read this owner information thoroughly before attempting to operate or maintain this unit to
become familiar with the capabilities and use of your appliance. Keep this literature where you have
easy access to it in the future. If a problem occurs, check the instructions and follow recommendations
given. If these suggestions don't eliminate your problem, call your NORDYNE Servicing Contractor
(Service PRO).
Any additions, changes, or conversions required in order for the appliance to satisfactorily meet the
application needs must be made by a qualified installer, service agency, or the gas supplier using
factory specified and approved parts.
WARNING: If the information in this manual is
not followed exactly, a fire or explosion may
result causing property damage, personal injury,
or loss of life.
— Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
— Installation and service must be performed by
a qualified installer, service agency, or the
gas supplier.
7.5/10 Ton
Single Package Gas Heating/Electric Cooling Rooftop Unit
IMPORTANT
FOR YOUR SAFETY
12.5/15 Ton
GR4G* 150/180 Series
— 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.
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Summary of Contents for Nordyne GR4G*090 Series
- Page 1 Keep this literature where you have easy access to it in the future. If a problem occurs, check the instructions and follow recommendations given. If these suggestions don’t eliminate your problem, call your NORDYNE Servicing Contractor (Service PRO).
-
Page 3: General Information
GENERAL INFORMATION the gas and electrical power before performing service or maintenance on the furnace. This gas heating/electric cooling unit has been de- Combustion Air Supply—The gas heating/electric cooling signed and built to provide many years of safe and unit needs an adequate supply of combustion and dependable comfort, providing it is properly installed ventilation air for proper and safe operation. -
Page 4: Operating Instructions
explosion, personal injury, carbon monoxide poisoning, or WARNING: property damage. Should overheating occur, or the gas supply fail OPERATING INSTRUCTIONS to shut off, shut off the manual gas valve to the unit before shutting off the electrical supply. Cooling Operation— 2 Stage NOTE: This unit is equipped with a manual-reset flame 1. -
Page 6: System Maintenance
o Operate the Indoor Blower Continuously —Set the 1. Regular Cleaning: thermostat fan switch to ON (may be called CONT on some thermostat models). (See Figure 1) • Remove any debris from the outdoor coil, being careful not to damage the aluminum fins. The indoor blower will start immediately, and will run •... - Page 7 Figure 3. Burner Inspection The motors for the circulating air blower, outdoor fan, and light yellow streaks may occur on the outer portions of the combustion blower are pre-lubricated at the factory. No flame. further oiling is required for the life of this product. Before Calling A Technician: CAUTION: If the unit fails to operate in cooling, be certain of the...
- Page 8 7083430 (Replaces 7081210) ¢708343&¤ Specifications and illustrations subject to change without notice and without incurring obligations. Printed in U.S.A. (05/04) O’Fallon, MO 7083430...
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