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88-4YCA4001-1A-EN

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Maintenance

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Some of the periodic maintenance functions of the unit
can be performed by the owner; 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.

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When the system is in constant operation, inspect the
filters at least once each month.

If the unit has disposable-type filters, replace them with
new filters of the same type and size. D

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

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e:: 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.

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

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To keep the unit operating safely and efficiently, the
manufacturer recommends that a qualified service
technician check the entire system at least once each
year or sooner if needed. The service technician should
examine these areas of the 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 proper sealing and 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)

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Complete the following unit inspections and service
routines 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.

Important Product Information

Packaged Unit Serial Number_____________________________________________________

Packaged Unit Model Number_____________________________________________________

Date of Installation_______________________________________________________________

Dealer___________________________________________________________________________

Service Information

Call your installing dealer if the unit is inoperative. Before you call, always check the following to be sure service is required:

1.

Be sure the main switch that supplies power to the unit is in the ON position.

2.

Replace any burned-out fuses or reset circuit breakers.

3.

Be sure the thermostat is properly set.

Service Phone ___________________________________________________________________

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Summary of Contents for 4YCA4024A1060A

Page 1: ...uipment by an unqualified person could result in death or serious injury When working on the equipment observe all precautions in the literature and on the tags stickers and labels that are attached t...

Page 2: ...tr ri ic ca al l c cu ur rr re en nt t a ar re e g gr ro ou un nd de ed d I If f g gr ro ou un nd di in ng g w wi ir re es s s sc cr re ew ws s s st tr ra ap ps s c cl li ip ps s n nu ut ts s o or r...

Page 3: ...Determine Unit Clearances 5 Step 3 Review Location and Recommendation Information 7 Step 4 Unit Installation 8 Step 5 Unit Startup 19 Sequence of Operation 21 Airflow Tables 23 Maintenance 25 Importan...

Page 4: ...c ct t S Sh hi ip pm me en nt t 1 Check for damage after the unit is unloaded Report promptly to the carrier any damage found to the unit Do not drop the unit I Im mp po or rt ta an nt t To prevent da...

Page 5: ...88 4YCA4001 1A EN 5 Step 2 Determine Unit Clearances Figure 1 Outline Drawing...

Page 6: ...6 88 4YCA4001 1A EN Figure 2 Outline Drawing S St te ep p 2 2 D De et te er rm mi in ne e U Un ni it t C Cl le ea ar ra an nc ce es s...

Page 7: ...serviceability maximum capacity and peak operating efficiency 2 Refer to the Installation section for instruction on converting the supply and return airflow covers to down airflow 3 The field assemb...

Page 8: ...oof There must be a weatherproof seal where the duct enters the structure 5 Do not expose the unit to direct roof water runoff 6 Seal all holes through exterior walls in accordance with local codes 7...

Page 9: ...ure 4 Converting Horizontal to Down Airflow HORIZONTAL SUPPLY AIR COVER SHEET METAL SCREWS HORIZONTAL RETURN AIR COVER Figure 5 Lifting and Rigging Base of unit rest on top of curb r ails Drip lip on...

Page 10: ...ta al ll la at ti io on n F Fr ra am me e M Mo ou un nt ti in ng g For rooftop applications using field fabricated frame and ducts use the following procedure 1 Prepare the hole in the roof in advanc...

Page 11: ...and weatherproofed in accordance with local codes 11 Access and service clearances for the unit must be given careful consideration when locating the duct entrance openings Figures Step 2 Determine U...

Page 12: ...w these guidelines for ductwork construction Connections to the unit should be made with three 3 inch canvas connectors to minimize noise and vibration transmission Elbows with turning vanes or splitt...

Page 13: ...ol ll lo ow w t th he e s sa af fe et ty y w wa ar rn ni in ng g e ex xa ac ct tl ly y c co ou ul ld d r re es su ul lt t i in n s se er ri io ou us s i in nj ju ur ry y d de ea at th h o or r p pr r...

Page 14: ...lt at pressures lower than 5 5 inches water column at the unit inlet If the supply line pressure is below the minimum supply pressure indicated on the unit nameplate contact the gas supply company Fol...

Page 15: ...32 hex wrench or flat head screwdriver N No ot te e For manifold pressures and orifice sizes for gas with other BTU ratings contact the local gas utility Manifold pressure should be 3 5 inches water c...

Page 16: ...on E El le ec ct tr ri ic ca al l C Co on nn ne ec ct ti io on ns s Electrical wiring and grounding must be installed in accordance with local codes or in the absence of local codes with the National...

Page 17: ...supply agrees with equipment and heater nameplate 3 Low voltage wiring to be 18 AWG minimum conductor 4 The thermostat on the Gas Electric unit must provide a G signal in the cooling mode only During...

Page 18: ...ring within the unit and make sure all connections are tight Replace and secure all electrical box covers and access panels before leaving the unit or turning on the power to the unit H Hi ig gh h A A...

Page 19: ...t period of time install pressure gauges on the gauge ports of the discharge and suction line valves behind the Compressor access panel Check the suction and discharge pressures and compare them to th...

Page 20: ...N No ot te e Blue smoke produced by the heat exchanger during the initial burner firing is caused by a thin film of oil on the surface of the heat exchanger This oil will burn off quickly 8 Set the th...

Page 21: ...ignition has been achieved the delay to indoor fan on period begins timing and after approximately 45 seconds the indoor blower motor IDM will be energized and will continue to run during the heating...

Page 22: ...hes High Limit switch protection device open Steady ON Normal Call for Heat 5 Flashes Flame sensed and gas valve not energized or flame sensed and no W signal 6 Flashes Flame Rollout Switch open 7 Fla...

Page 23: ...47 255 263 270 277 283 289 294 Cooling High 0 CFM 1276 1229 1186 1137 1087 1039 994 950 913 874 WATTS 230 239 247 255 263 270 277 283 289 294 Heat Low 0 CFM 1116 1060 1006 950 898 849 805 760 723 668...

Page 24: ...1408 1355 WATTS 483 499 514 528 543 557 568 583 592 601 Heat Low 0 CFM 1928 1876 1819 1764 1714 1660 1602 1543 1482 1437 WATTS 526 541 557 573 586 601 613 627 641 651 Heat High 0 CFM 1829 1769 1702 16...

Page 25: ...ine these areas of the unit filters for cleaning or replacement motors and drive system components economizer gaskets for possible replacement safety controls for mechanical cleaning electrical compon...

Page 26: ...26 88 4YCA4001 1A EN N No ot te es s...

Page 27: ...88 4YCA4001 1A EN 27 N No ot te es s...

Page 28: ...anstandardair com The AHRI Certified mark indicates company participation in the AHRI Certification program For verification of individual certified products go to ahridirectory org The manufacturer h...

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