Trane YCZ035F1, YCZ036F1/3M0B manual Maintenance

MAINTENANCE

ROUTINE MAINTENANCE BY OWNER

You can do some of the periodic maintenance functions for your YCZ-Funit yourself; this includes replacing the disposable or cleaning the permanent air filters, cleaning the unit cabinet, cleaning the condenser coil, and conducting a general unit inspection on a regular basis.

When the system is in constant operation. In new homes, check the filters every week for the first four (4) weeks.

If you have disposable-type filters, replace them with new filters of the same type and size. Do not attempt to clean disposable filters.

Permanent-type filters can be cleaned by washing them with a mild detergent and water. Make sure that the filters are thor- oughly dry before reinstalling them in the unit (or duct system).

NOTE: It may be necessary to replace permanent filters annually if washing fails to clean the filter or if the filter shows signs of deterioration. Be sure to use the same type and size as was originally installed.

CONDENSER COIL

Unfiltered air circulates through the unit's condenser coil and can cause the coil’s surface to become clogged with dust, dirt, etc. To clean the coil, vertically (i.e., with the fins) stroke the coil surface with a soft-bristled brush.

Be sure to keep all vegetation away from the condenser coil area.

▲WARNING: TO PREVENT AN EXPLOSION

OR POSSIBLE INJURY, DEATH AND EQUIPMENT DAMAGE, DO NOT STORE COMBUSTIBLE MATERIALS, GASOLINE

MAINTENANCE PERFORMED BY SERVICEMAN-- COOLING SEASON

To keep your unit operating safely and efficiently, the manufac- turer recommends that a qualified serviceman check the entire system at least once each year and any other time that you feel one is needed. Your serviceman should examine these areas of your DCX-F unit:

●filters (for cleaning or replacement)

●motors and drive system components

●economizer gaskets (for possible replacement)

●safety controls (for mechanical cleaning)

●electrical components and wiring (for possible replacement and connection tightness)

●condensate drain (for cleaning)

●unit duct connections (to see that they are physically sound and sealed to the unit casing)

●unit mounting support (for structural integrity)

●the unit (for obvious unit deterioration)

MAINTENANCE PERFORMED BY SERVICEMAN-- HEATING SEASON

Complete the unit inspections and service routines described below at the beginning of each heating season.

●Visually inspect the unit to ensure that the airflow required for combustion and condenser coil is not obstructed from the unit.

●Inspect the control panel wiring to verify that all electrical connections are tight and that the wire insulation is intact.

●Check the operation of the gas ignition system as follows: Turn off the gas supply with the unit operating to verify that the gas valve closes and that a ignition cycle is initiated by the unit.

●Visually inspect the inside of the burners and the burner ports for deposit buildup and corrosion. Wipe and brush the inside of the burner and the burner ports and then clean with a dry cloth. If the deposit buildup or corrosion is excessive, replace the burners.

FLUE CLEANING

Before each heating season, the flue should be inspected for signs of flaking rust and soot deposits. Dirty flues should be cleaned by qualified service personnel ONLY using the following procedure:

1.Turn the room thermostat to the OFF position. Turn the main power disconnect OFF. Turn the manual gas valve OFF.

2.Remove the flue cap, the lower access panel, and the upper access panel.

3.Remove the combustion blower assembly from the fluebox. Remove the flue box and the flue restrictors.

4.Remove all wires from the gas value while carefully noting their location.

5.Disconnect the gas supply line from the valve.

6.Remove the manifold retaining screws and pull the burner- manifold assembly from the heat exchanger.

7.Remove the inlet turbulators being careful not to break or damage them.

8.Wipe the flue box and flue baffles clean with a clean, dry cloth.

9.CAUTION: Never use combustible cleaning fluids on any part of the furnace.

10.Replace all gaskets with new ones.

11.Replace all damaged or broken turbulators with new ones.

12.Reassemble the unit by reversing Steps 2 through 7 above. Take care that all gaskets seat properly.

13.Check all wires for correct installation by referring to the unit’s electrical wiring diagram.

14.Leak test all gas line connections with a soap and water solution or the equivalent.

15.Reinstall the top and bottom access panels and the flue stack.

16.Visually inspect the unit to ensure that the airflow opening for combustion is not obstructed.

17.Follow the start-up procedure above to place the unit back in service.

▲WARNING: DO NOT OPERATE THE UNIT

WITHOUT THE EVAPORATOR FAN ACCESS PANEL IN PLACE. REINSTALL THE ACCESS PANEL AFTER PERFORMING ANY MAINTENANCE PROCEDURES ON THE FAN. OPERATING THE UNIT WITHOUT THE ACCESS PANEL PROPERLY INSTALLED MAY RESULT IN SEVERE PERSONAL INJURY OR DEATH.

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