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Installer’s Guide

IMPORTANT:  Read this entire manual before beginning installation procedures. 

 

Safety Considerations

WARNING: INDICATES A POTENTIALLY 

HAZARDOUS SITUATION WHICH, IF NOT 

AVOIDED, COULD RESULT IN DEATH OR 

SERIOUS INJURY. 

CAUTION: Indicates a potentially hazardous situ-

ation which, if not avoided, may result in minor 

or moderate injury. It may also be used to alert 

against unsafe practices and where property-

damage-only accidents could occur.

NOTICE

Warning and Cautions appear at appropriate 

locations throughout this guide. Your personal 

safety and the proper operation of this air con-

ditioning product require that you follow them 

carefully. The manufacturer assumes no liability 

for installations or servicing performed by un-

qualified personnel.

SAFETY HAZARD!

Do not operate the unit without the evaporator fan or coil 

access panels in place. Reinstall the access panels after 

performing maintenance proceedures on the fan. Operating 

the unit without the access panels properly installed may 

result in severe personal injury or death.

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WARNING

CAUTION

Reconnect all grounding devices.

All parts of this product that are capable of conducting 

electrical current are grounded.  If grounding wires, screws, 

straps, clips, nuts, or washers used to complete a path to 

ground are removed for service, they must be returned to 

their original position and properly fastened.

PRECAUTIONARY MEASURES

• 

Avoid breathing fiberglass dust

• 

Use a NIOSH approved dust/mist respirator

• 

Avoid contact with the skin or eyes. Wear long-sleeved, 

loose fitting clothing, gloves, and eye protection.

• 

Wash clothes separately from other clothing, rinse 

washer thoroughly.

• 

Operations, such as sawing, blowing, tear-out, and 

spraying may generate fiber concentrations requiring 

additional respiratory protection. Use the appropriate 

NIOSH approved respirator in these situations.

FIRST AID  MEASURES

Eye Contact: 

Flush eyes with water to remove  

     

 

dust. If symptoms persist, seek medical  

      

attention.

Skin Contact: 

Wash affected area gently with soap and  

     

 

warm water after handling.

This product contains fiberglass wool insulation! Fiber

-

glass dust and ceramic fibers are believed by the state of 

California to cause cancer through inhalation. Glasswool 

fibers may also cause respiratory, skin, or eye irritation.

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WARNING

EXPLOSION HAZARD!

To prevent an explosion or possible injury, death, and equip-

ment damage. Do not store combustible materials, gasoline, 

or other flammable vapors or liquids near the unit.

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WARNING

CONTAINS REFRIGERANT!
SYSTEM CONTAINS OIL AND REFRIGERANT UNDER 
HIGH PRESSURE. RECOVER REFRIGERANT TO RELIEVE 
PRESSURE BEFORE OPENING SYSTEM. Failure to follow 
proper procedures can result in personal illness or injury 
or severe equipment damage.

Unit contains R-410A Refrigerant!

R-410A operating pressure exceeds the limit of R-22. Proper 

service equipment is required. Failure to use proper service 

tools may result in equipment damage or personal injury.

SERVICE

Use only R-410A Refrigerant and approved POE com-

pressor oil.

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WARNING

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WARNING

CAUTION

Hot Surface!

Do Not touch top of compressor. May cause minor to severe 

burning.

IMPORTANT:

 Proper refrigerant charge and proper air flow are 

critical to achieve rated capacity and efficiency. Installation of 

this product should follow the manufacturer’s refrigerant charging 

and air flow instructions. 

Failure to confirm proper charge and 

airflow may reduce energy efficiency and shorten equipment 

life. 

IMPORTANT:

 Wear appropriate gloves, arm sleeve protectors, 

and eye protection when servicing or maintaining this equipment.

Note: 

The packaged units have been evaluated in

accordance with the Code of Federal Regulations,
Chapter XX, Part 3280 or the equivalent.
“SUITABLE FOR MOBILE HOME USE.”

Summary of Contents for 4TCY4024

Page 1: ...be disconnected and the main gas valve must be turned off If operating checks must be performed with the unit operating it is the technician s responsibility to recognize these hazards and proceed sa...

Page 2: ...dditional respiratory protection Use the appropriate NIOSH approved respirator in these situations FIRST AID MEASURES Eye Contact Flush eyes with water to remove dust If symptoms persist seek medical...

Page 3: ...e Curb 13 Ductwork Installation 16 Attaching Downflow Ductwork to Roof Curb 16 Attaching Downflow Ductwork to Roof Frame 16 Attaching Horizontal Ductwork to Unit 16 Condensate Drain Piping 16 Air Filt...

Page 4: ...Step 2 Determine Unit Clearances Figure 1 4TCY4024 through 4TCY4036 1 of 3 Figures 1 to 6 show the unit critical dimensions NOTE The view labeled Bottom Side represents the Base as viewed looking up...

Page 5: ...Page 5 Installer s Guide Figure 2 4TCY4024 through 4TCY4036 2 of 3...

Page 6: ...Page 6 Installer s Guide Figure 3 4TCY4024 through 4TCY4036 3 of 3...

Page 7: ...Page 7 Installer s Guide Figure 4 4TCY4042 through 4TCY4060 1 of 3 NOTE The view labeled Bottom Side represents the Base as viewed looking up from underneath the unit...

Page 8: ...Page 8 Installer s Guide Figure 5 4TCY4042 through 4TCY4060 2 of 3...

Page 9: ...Page 9 Installer s Guide Figure 6 4TCY4042 through 4TCY4060 3 of 3...

Page 10: ...unit installations are illustrated in Figures 1 through 6 pages 4 9 2 Any reduction of the unit clearances indicated in these figures may result in condenser coil starvation or the recircula tion of...

Page 11: ...ast two 2 inches of insulation and weatherproof There must be a weather proof seal where the duct enters the structure 5 Do not expose the unit to direct roof water runoff 6 Seal all holes through ext...

Page 12: ...includes a kit of four 4 lifting lugs See Figure 10 inset B on page 14 2 Insert the four lifting lugs in the openings provided in the drip lip on each end of the unit See Figure 10 inset B on page 14...

Page 13: ...top applications using field fabricated ducts and sleeper rails rather than a curb or frame use the following procedure 1 Locate and secure the sleeper rails to the roof by bolting Three 3 sleeper ra...

Page 14: ...drawing The manufacturer is not responsible for the unauthorized use of this drawing and expressly disclaims any liability for damages resulting from such unauthorized use Gasket Seal Spreader Bars B...

Page 15: ...rizontal Airflow Application with Frame Supply Air Return Air Roof Flashing Channel Iron Center Support Center Support required on all Frame Applica tions Angle Iron Frame Roof Flashing Return Air Ang...

Page 16: ...s to minimize noise and vibration transmission Elbows with turning vanes or splitters are recommended to minimize air noise and resistance The first elbow in the ductwork leaving the unit should be no...

Page 17: ...the only one considered Over Current Protection The branch circuit feeding the unit must be protected as shown on the unit s rating plate Power Wiring The power supply lines must be run in weather ti...

Page 18: ...Page 18 Installer s Guide Figure 20 Typical 4TCY4 Field Wiring Diagram...

Page 19: ...blower turn free without rubbing and are they tight on the shafts Has all work been done in accordance with applicable local and national codes Are all covers and access panels in place to prevent air...

Page 20: ...s are closed If two stages of heat are provided and additional heat is required the comfort control s second stage W2 circuit is energized power ing the BH contactor coil Maintenance Final Installatio...

Page 21: ...rvice routines described 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...

Page 22: ...Page 22 Installer s Guide Notes...

Page 23: ...Page 23 Installer s Guide Notes...

Page 24: ...installing dealer if the unit is inoperative Before you call always check the following to be sure service is required a Be sure the main switch that supplies power to the unit is in the ON position b...

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