SystemAir changeair Sophomore 4000 Series Owner's Manual
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SystemAir changeair Sophomore 4000 Series Owner's Manual

Cabinet- classroom air handler single package vertical air conditioner & heat pump
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Sophomore Series
4000 & 5000 Cabinet- Classroom Air Handler
Single Package Vertical Air Conditioner & Heat Pump
This manual contains instructions specific to the installation, operation and service of your unit. If installed with the GHM9 gas heat module, please
refer to the GHM9 supplementary installation and operations guide that was also supplied along with this document. .
Keep the manual(s) in a safe place and at the ready for future reference.
Should you require further information contact the factory or your regional Changeair representative.
Owner's Manual - Installation,
Operation, and Service Instructions
Version 1.1
Improper installation, adjustment,
alteration, service or maintenance
can cause property damage,
personal injury or loss of life,
and could cause exposure to
substances which have been
determined by various state
agencies to cause cancer, birth
defects or other reproductive
harm.
Read and understand the
installation, operating, and
maintenance instructions
thoroughly before installing or
servicing this equipment.
Installation and maintenance must
be done by a qualified installer,
service agency, or authorized
dealer.
OPERATION OF UNIT DURING
CONSTRUCTION MAY VOID THE
WARRANTY.

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  • Page 1 Owner's Manual - Installation, Operation, and Service Instructions Version 1.1 Sophomore Series 4000 & 5000 Cabinet- Classroom Air Handler Improper installation, adjustment, Single Package Vertical Air Conditioner & Heat Pump alteration, service or maintenance can cause property damage, personal injury or loss of life, and could cause exposure to substances which have been determined by various state...
  • Page 2 Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions www.changeair.com...

  • Page 3: Table Of Contents

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions List of Sections 1.0 Identification and Warranties .......... 4 4.14 Figure 7 | Cleaning Energy Recovery Wheels (ERW) ..15 1.1 Identification ..............4 4.15 Removing Energy Recovery Wheels (ERW) ....

  • Page 4: Identification And Warranties

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 1.0 Identification and Warranties 1.1 Identification Please keep this page for future reference. You have just purchased a Changeair Sophomore Series Raised Intake Air Handling Unit. This design is certified by the Electrical Testing Laboratories (ETL) and bears the label indicating it has been tested to the current safety standards UL 1995 and CAN/ CSA 22.2 NO.236 for both the United States and Canada.

  • Page 5: Safety Labeling

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 1.4 Safety Labeling This is a safety alert symbol. When you see this symbol on labels or in manuals, be alert to the potential for personal injury. Understand and pay particular attention to words DANGER, WARNING or CAUTION.

  • Page 6: Limited Warranty

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 1.5 LIMITED WARRANTY LIMITED STANDARD PARTS ONLY WARRANTY (14 months) This Changeair product is warranted to the original purchaser to be free from defects in material and workmanship under normal use and maintenance, consistent with Changeair instructions or recommendations for use and maintenance, for a period of 14 months from shipping date.
  • Page 7 Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions No claim or demand may be asserted against Changeair or its employees, agents, directors, officers, representatives and/or suppliers hereunder unless the injury, loss or damage giving rise to such claim or demand is sustained within the applicable warranty period referred to above and unless such claim or demand is first asserted within twelve months after the injury, loss or damage has occurred.

  • Page 8: Performance Data

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 2.0 Performance Data 2.1 Full Load FULL LOAD 1200 1400 1500 1700 Total Cooling Capacity * Sensible Cooling 16.3 20.1 23.2 27.2 30.6 37.4...

  • Page 9: Model Number Nomenclature

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 3.0 Model Number Nomenclature Designation Sample CA H 40 36 7. DD 1. Product Type Ducted Discharge (Draw Through) CA - Changeair Classroom Handler 6.

  • Page 10: General Preventative Maintenance

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 4.0 General Preventative Maintenance 4.1 General Preventative Maintenance By performing proper preventative maintenance your air handler will operate economically and dependably. Instructions for basic maintenance are found below. Before beginning with any preventative maintenance, Always turn OFF electrical power supply before cleaning the unit or performing...

  • Page 11: Filter Maintenance

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 4.3 Filter Maintenance Filtering Out Trouble Dirty air filters will cause air flow reduction through your unit. If excessive air loss occurs, the unit may freeze up when in the air conditioning mode, or cycle on high and limit safety controls during heating mode.

  • Page 12: Removing Supply Fan(S)

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 4.6 Removing Supply Fan(s) Remove Supply Fan Motor(s) as follows: A qualified service technician Turn OFF electrical supply to the unit. should perform the following.

  • Page 13: Removing Condensing Fan

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 4.8 Removing Condensing Fan Remove Condenser Fan Motor as follows: A qualified service technician should perform the following. Turn OFF electrical supply to the unit. Open front service panels of unit using key provided.

  • Page 14: Cleaning Supply And Condensing Fans

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 4.10 Cleaning Supply and Condensing Fans Cleaning Supply (Fig. 5) and, Condensing Fan (Fig. 6) Remove fan(s) from unit. (Refer to Pg 12,13) Take a brush or similar cleaning tool and clean blades of fan to remove built up attached dirt.

  • Page 15: Cleaning Energy Recovery Wheels (Erw)

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 4.13 Cleaning Energy Recovery Wheels (ERW) Cleaning Energy Recovery Wheel (ERW) Turn OFF electrical power to the unit. Open front service panels with the key provided. Open ERW damper.

  • Page 16: Removing Energy Recovery Wheels (Erw)

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 4.15 Removing Energy Recovery Wheels (ERW) Removing Energy Recovery Wheel (ERW) Turn OFF electrical power to the unit. Open front service panels with the key provided. Remove the 7 screws holding the ERW damper assembly and disconnect Belimo wire harness.

  • Page 17: Coil Maintenance

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 4.17 Coil Maintenance Heating Coil (located on top of the Indoor coil) Using a coil brush remove/dislodge excess foreign matter. Vacuum loosened foreign matter. Using compressed air, clean coil in reverse direction of air flow and/or using an environmentally safe cleaner, spray top side of coil and allow to soak for several minutes.
  • Page 18 Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 4.19 Figure 10 | Component Drawing Fig. 10 Component Drawing www.changeair.com...

  • Page 19: Installation Guide

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 5.0 Installation Guide 5.1 General Assembly and Installation It is important to read and understand the instructions outlined in this document, as well as any job specific documentation provided in the Information Package before proceeding with the installation.

  • Page 20: Electrical Connections

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions If the wall is not perfectly perpendicular to the floor, it may be necessary to slide shims under the front or back of the air handler.

  • Page 21: Wall Sleeve

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions If an electric duct heater is supplied either by others or by Changeair it must have its Always turn off the own supply line voltage.

  • Page 22: Exterior Louver

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 5.4 Exterior Louver The exterior louver is supplied with the unit and should slide into the wall sleeve from the outside of the building. Fasten to the wall through the standard 2”...

  • Page 23: Top Plenum

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions Due to slight variations in the unit widths, it is best to assemble the RSO on the unit rather than preassembling the RSO and then fastening it to the unit.

  • Page 24: Top Duct Cover

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions You may require an assistant's help for this procedure. It is necessary to remove and reassemble the back from the RPA in order to fasten it to the back of the air handler. Remove the back panel of the RPA.

  • Page 25: Installation Drawings

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 6.0 Installation Drawings 6.1 Figure 12 | Sophomore Series Installation Drawing www.changeair.com...
  • Page 26 Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 6.2 Figure 13 | Sophomore Series Installation Drawing www.changeair.com...

  • Page 27: Trouble Shooting Guide

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions 7.0 Trouble Shooting Guide ATTENTION: Changeair is not responsible for injury to untrained or unauthorized personnel who attempt to do repairs based on the trouble shooting procedures outlined in this section.

  • Page 28: Cooling Troubleshooting

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions Problem - Supply Fan Not Running a. Check for proper speed control operation. b. Check for proper control signal at fan motor and relay. c.

  • Page 29: Replacement Parts

    Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions Problem - Compressor Cycles Off and On a. Low voltage; check for proper supply voltage at unit. b. Restriction in the air across the condenser; check and clean as required. c.
  • Page 30 Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions www.changeair.com...
  • Page 31 Sophomore Series 4000 & 5000 Cabinet - Classroom Air Handler - Owner's Manual - Installation, Operation, and Service Instructions www.changeair.com...
  • Page 32 Changeair To find your local representative contact: Canada Phone: 519-688-6363 U.S.A. Phone: 517-676-0700 www.changeair.com Changeair reserves the right to update or continually improve their products, specifications or information without notice.

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