York ZF R410A 11.2 EER, ZH R410A 11.7 EER, ZH R410A 14 SEER, ZJ R410A 12.2 EER, ZJ R410A 15 SEER User Manual

CONTENTS

SAFETY INFORMATION . . . . . . . . . . . . . . . . 2

FOR YOUR SAFETY . . . . . . . . . . . . . . . . . . . . . . 2

SYSTEM OPERATION. . . . . . . . . . . . . . . . . . 2

THERMOSTATS . . . . . . . . . . . . . . . . . . . . . . . . . . 2 INTERMITTENT IGNITION DEVICE . . . . . . . . . . 2 OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . 3

EXPLAIN UNIT FUNCTION . . . . . . . . . . . . . . 4

GENERAL MAINTENANCE. . . . . . . . . . . . . . 4

HEATING SYSTEM INSPECTION . . . . . . . . . . . . 4 AIR FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 BLOWER ASSEMBLY . . . . . . . . . . . . . . . . . . . . . 5 MOTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 CONDENSER COIL . . . . . . . . . . . . . . . . . . . . . . . 6 REGISTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . 6

BEFORE CALLING A SERVICE TECHNICIAN:. . 6

®

USER’S, MAINTENANCE and

SERVICE INFORMATION

MANUAL

3 THRU 12.5 TON

SINGLE PACKAGE

AIR CONDITIONER

GAS/ELECTRIC

& ELECTRIC/ELECTRIC

The manufacturer recommends that the “User” read all sections of this manual and keep the manual for future reference.

FIRE OR EXPLOSION HAZARD

Failure to follow safety warnings exactly could result in serious injury, death, or property damage.

-Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

-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.

•Leave the building immediately.

•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.

- Installation and service must be per formed by a qualified installer, service agency or the gas supplier.

66386-YUM-D-0912

66386-YUM-D-0912

SAFETY INFORMATION

FOR YOUR SAFETY

•Make sure that the furnace area is clear and free of combustible materials, gasoline and other flammable vapors and liquids.

•Be sure the furnace is clear and free of insulating material. Examine the furnace area after installation of the furnace or the installation of additional insulation. Some types of insulation are combustible.

•For proper operation of this furnace, air for combustion and ventilation is required. Make sure that these openings are not obstructed.

•For lighting or shutting down this furnace, refer to the lighting instructions provided adjacent to the burners and also located in this manual.

•A blocked vent roll-out switch is provided in the burner compartment. This switch is a manual reset. If the furnace fails to operate, contact a qualified service technician.

•Should the gas supply fail to shut off or if overheating occurs, shut off the gas valve to the furnace before shutting off the electrical supply. Then call a qualified service technician.

•Do not use this furnace if any part has been under water. A flood-damaged furnace is extremely dangerous. Attempts to use the furnace can result in fire or explosion. A qualified service technician should be contacted to inspect the furnace and to replace all gas controls, control system parts, electrical parts that have been wet or the furnace if deemed necessary.

•Determine the integrity of the installation regarding the flue gas vent, the return and supply air duct. Confirm the equipment is well supported and there are no signs of deterioration. The manufacturer recommends that main burner, ignition device and controls are inspected by a qualified service technician before each heating season.

SYSTEM OPERATION

THERMOSTATS

Set your thermostat for either heating or cooling then set it for the desired temperature. DO NOT ADJUST THE THERMOSTAT RAPIDLY ON AND OFF, OR BACK AND FORTH FROM HEAT TO COOL. THIS COULD DAMAGE YOUR EQUIPMENT.

Always allow at least 5 minutes between changes. Find the temperature that is most comfortable to you and then LEAVE YOUR THERMOSTAT ALONE. (Exception is for night or vacation “set back” to conserve energy).

Manually moving the thermostat up or down will not speed up temperature changes in your rooms. This only causes the thermostat switch to function at your command rather than responding to room temperature.

Heat generated by devices other than the furnace may interfere with thermostat performance. Therefore, lamps, radios, television sets, etc. should not be placed near the thermostat.

FIGURE 1- TYPICAL THERMOSTAT

INTERMITTENT IGNITION DEVICE

This furnace is equipped with an intermittent automatic ignition system. Do Not attempt to manually relight the burners. Personal injury could result.

When the thermostat calls for heat, gas is supplied and at the same time, sparking occurs to light the burner. With the burner lit, the flame sensor rod closes a circuit to the ignitor control which allows the burner to continue to fire.

When the room thermostat is satisfied, the electrical circuit to the gas valve is opened, closing main burner gas. If the burner should fail to light, contact your heating contractor or gas utility for service to insure that proper operating conditions are restored.

2	Johnson Controls Unitary Products