Instruction d'utilisation York 66386-YUM-C-1011

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CONTENTS
USER’S, MAINTENANCE
SAFETY INFORMATION . . . . . . . . . . . . . . . . 2
FOR YOUR SAFETY . . . . . . . . . . . . . . . . . . . . . . 2
and
SYSTEM OPERATION. . . . . . . . . . . . . . . . . . 2
THERMOSTATS . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SERVICE INFORMATION
INTERMITTENT IGNITION DEVICE . . . . . . . . . . 2
OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . 3
MANUAL
EXPLAIN UNIT FUNCTION . . . . . . . . . . . . . . 4
3 THRU 12.5 TON
GENERAL MAINTENANCE. . .

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66386-YUM-C-1011 SAFETY INFORMATION SYSTEM OPERATION FOR YOUR SAFETY THERMOSTATS • Make sure that the furnace area is clear and free of Set your thermostat for either heating or cooling then set it for combustible materials, gasoline and other flamma- the desired temperature. DO NOT ADJUST THE THERMO- ble vapors and liquids. STAT RAPIDLY ON AND OFF, OR BACK AND FORTH FROM HEAT TO COOL. THIS COULD DAMAGE YOUR • Be sure the furnace is clear and free of insulating EQUIPMENT. material. Examine the

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66386-YUM-C-1011 INPUT C. Opening and closing the unit's main disconnect switch. The correct heat capacity of the furnace is regulated by the burner orifices and the gas pressure. The proper orifices are        furnished but the gas pressure regulator must be adjusted by                          the installer or gas utility service technician.                   OPERATING INSTRUCTIONS TO SHUT DOWN THE FURNACE: 1. Close the mai

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66386-YUM-C-1011 EXPLAIN UNIT FUNCTION When the system is functioning properly, show the owner the location of all disconnect switches and the thermostat. Explain how to start and stop the unit and how to adjust tem-      ! "   #   $  % &  perature settings within the limitations of the system. Advise that the flue exhaust hood surface and the immediate area will experience high temperatures during the heating cycle,   % ' ' ( ) and that all unauthorized personnel and debris

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66386-YUM-C-1011 NOTE: Filters must be installed with “Air Flow” arrows point- AIR FILTERS ing inward -- toward the indoor coil. In the event the All units contain four filters. The filter racks on these units will spacers in the filter section are removed, they must receive either 1" or 2" filters. Filters can also be installed in be reinstalled in their original position. the building at a suitable return air location if an economizer or outside air accessory is not used. Filters must always

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Indoor Blower Motor and Drive - The indoor blower motor fea- tures ball bearings that do not require periodic lubrication. However, if the motor has grease fittings, periodic lubrication of the motor bearings can extend Damage can occur if the bearings are overlubricated. Use the life of components but is optional. grease sparingly. If desired, every three years, using a low pressure grease gun, pump grease into the bearing grease fitting until grease REGISTERS just begins to show at the seals.