ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
PROCEDURE
CAUTION: Electrostatic discharge can affect electronic components. Take precautions during furnace installation and servicing to protect the furnace electronic control and motor. Precautions will prevent electrostatic discharges from personnel and hand tools which are held during the procedure. These precautions will help to avoid exposing the control to electrostatic discharge by putting the furnace, the control, the motor, and the person at the same electrostatic potential.
1.Disconnect all power to the furnace. DO NOT TOUCH THE CONTROLS OR ANY WIRE CONNECTED TO THE CONTROLS PRIOR TO DISCHARGING YOUR BODY'S ELECTROSTATIC CHARGE TO GROUND.
2.Firmly touch a clean, unpainted, metal surface of the furnace chassis which is close to the controls. Tools held in a person's hand during grounding will be satisfactorily discharged.
3.After touching the chassis you may proceed to service the controls, motor, or connecting wires as long as you do nothing that recharges your body with static electricity (for example; DO NOT move or shuffle your feet, DO NOT touch ungrounded objects, etc.).
4.If you touch ungrounded objects (recharge your body with static electricity), firmly touch furnace again before touch- ing control or wires.
5.Use this procedure for installed and uninstalled (un- grounded) furnaces.
6.Before removing a new control or motor from its container, discharge your body's electrostatic charge to ground to protect the control or motor from damage. If the control or motor is to be installed in a furnace, follow items 1 through 5 before bringing the control, or motor, or yourself into contact with the furnace. Put all used AND new controls and motors into containers before touching ungrounded objects.
7.An ESD service kit (available from commercial sources) may also be used to prevent ESD damage.
CARE AND MAINTENANCE
For continuing high performance and to minimize possible equip- ment failure, it is essential that periodic maintenance be performed on this equipment. Consult your local dealer as to the proper frequency of maintenance and the availability of a maintenance contract.
WARNING: Never store anything on, near, or in contact
with the furnace, such as: 1. Spray or aerosol cans, rags, brooms, dust mops, vacuum cleaners, or other cleaning tools.
2.Soap powders, bleaches, waxes or other cleaning compounds, plastic or plastic containers, gasoline, kero- sene, cigarette lighter fluid, dry cleaning fluids, or other volatile fluids.
3.Paint thinners and other painting compounds, paper bags or other paper products.
A failure to follow this warning could result in corrosion of the heat exchanger, fire, personal injury, or death.
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WARNING: Turn off the gas and electrical supplies to the unit before performing any maintenance or service on it. Follow the operating instructions on the label attached to the furnace. A failure to follow this warning could result in personal injury.
CAUTION: As with any mechanical equipment, per- sonal injury can result from sharp metal edges, etc.; therefore, be careful when removing parts.
The minimum maintenance that should be performed on this equipment is as follows:
1.Check and clean air filter each month or more frequently if required. Replace if torn.
2.Check blower motor and wheel for cleanliness each heating and cooling season. Clean as necessary.
3.Check electrical connections for tightness and controls for proper operation each heating season. Service as necessary.
CAUTION: If motor is removed from blower assembly, the motor MUST be reinstalled so arrow on end of the motor is pointing in the direction of airflow through the furnace. The belly band MUST be the specified distance from the motor end shield surface at the shaft end. (See Fig. 3.)
D
A95268
DIMENSIONS (IN.)
FURNACE SIZE | D |
036060 | 1 |
048080 | |
060100 | 3 |
060120 | 3 |
|
|
Fig. 3ÐMotor Belly Band Location
A.Air Filter Arrangement
The air filter arrangement may vary depending on the application. Refer to Table 1 for filter size information.
WARNING: Never operate unit without a filter or with filter access door removed. A failure to follow this warning could result in fire, personal injury, or death.
1.Upflow and horizontal.
Each furnace requires 1 or 2 filters which are installed in the blower compartment. (See Fig. 4.) To remove filters for cleaning or replacement, proceed as follows:
