SystemAir changeair Freshman Series Owner'S Manual Download | Manualshive

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6

Removing Supply Fan(s)

Remove SUPPLY FAN MOTOR(s) as follows.

1. Turn

OFF

electrical supply to the unit.

2. Open front service panels of unit using key provided.
3. Disconnect the wire harness running to the fan motor. (Fig.B)
4. Remove fastening screws from either side of fan assembly
5. Pull fan assembly straight out of unit and clean dirt from fan

blades and around motor housing. Oil motor with SAE 20 non-
detergent oil. (Refer to Pg 7)

6. Replace fan assembly in track and re-secure with fastening

screws.

7. Replace electrical wires.
8. Close service panels and lock with key, turn electrical power

ON

,

and test operation of the unit.

W A R N I N G

A qualified service technician should perform the following.

WARNING

Rotating blades could
cause severe injury.

Keep hands clear.

Lockout power and
allow machine to stop
before servicing.

WARNING

SHOCK

HAZARD

Capacitor

FRONT

Fig. B

OR

Fan Pan

Fan Bracket

Fan Slide Rail

Fastening Screws

Back

Supply Fan Assembly

Wire Harness

6.

Pull fan assembly straight out of unit and clean dirt from fan
blades and around motor housing. Oil motor with SAE 20 non-
detergent oil. (Refer to Pg 7)

7. Replace fan assembly in track and re-secure with fastening

screws.

8. Replace access panel. (Fig. D)
9. Replace electrical wires.
10. Close service panels and lock with key, turn electrical power

ON

,

and test operation of the unit.

Removing Intake Fan(s)

Remove INTAKE FAN MOTOR(s) as follows

1. Turn

OFF

electrical supply to the unit.

2. Open front service panels of unit using key provided.
3. Remove access panel to gain access to the fan. (Fig. D)
4. Label and disconnect the electrical wires from terminal strip on

fan housing. (Fig. C)

5. Remove fastening screws from either side of fan assembly

.

A qualified service technician should perform the following.

W A R N I N G

WARNING

Rotating blades could
cause severe injury.

Keep hands clear.

Lockout power and
allow machine to stop
before servicing.

WARNING

SHOCK

HAZARD

FRONT

Fig. D

Fig. C

Fan Pan

Fan Bracket

Capacitor

Fan Slide Rail

Fastening Screws

Back

Intake Fan Assembly

Wire Harness

Access Panel

Intake Fan

Owner’s Manual

Power Plug

Control Plug

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Summary of Contents for changeair Freshman Series

Page 1: ...nstallation Operation and Service Instructions Version 1 1 This manual contains instructions for installation and operation of your unit Keep it in a safe place for ready reference Freshman Series Dehumidification Classroom Air Handler ...

Page 2: ...ral UV Sequence of Operations 14 General Classroom Unit Trouble Shooting 14 15 OWNER S MANUAL INSTALLATION OPERATION AND SERVICE INSTRUCTIONS ATTENTION Improper installation adjustment alteration service or maintenance can cause property damage personal injury or loss of life Installation and maintenance must be done by a qualified installer service agency or authorized dealer OPERATION OF UNIT DU...

Page 3: ...tallation operation and maintenance instructions will void the responsibility of Change Air Products and Services Ltd REFERENCE INFORMATION For future reference you should record the following information from the units Dealer Name ________________________________ Address ________________________________ City ________________________________ State Province ________________________________ Zip or P...

Page 4: ...pt in a writing signed by Change Air and you This warranty gives you specific legal rights and you may also have other rights which may vary from region to region Warranties LIMITED STANDARD PARTS ONLY WARRANTY 14 months This Change Air Products and Services Ltd Change Air or Change Air USA product is warranted to the original purchaser to be free from defects in material and workmanship under nor...

Page 5: ...ard parts only warranty section EXTENDED OPTIONAL WARRANTIES Changeair offers extended warranties on the compressor the gas heat exchanger or the complete Changeair unit at an extra cost to the customer Extended warranty packages may be purchased through an authorized Changeair supplier and are available in either a prorated parts only or replacement parts complete In either case shipping and labo...

Page 6: ...ITAL WHETHER OR NOT CHANGEAIR HAS BEEN ADVISED OF THE POSSIBILITY OF ANY SUCH DAMAGES WHETHER OR NOT FORESEEABLE AND WHETHER OR NOT BASED ON A BREACH OF CONTRACT NEGLIGENCE OR GROSS NEGLIGENCE WARRANTY CLAIM PROCEDURE If customer believes one or more components of the Changeair product is defective or working improperly customer shall contact its local Changeair agent and request the name and addr...

Page 7: ...s once a year with SAE 20 non detergent oil if applicable Refer to Pg 7 10 Test unit and controls for complete functionality and replace and or adjust parts as required 11 Check the exterior louver to be sure it is free of debris or obstructions once a year 5 Before beginning with any preventative maintenance you MUST follow these safety precautions Failure to do so may result in personal injury o...

Page 8: ...y Wire Harness 6 Pull fan assembly straight out of unit and clean dirt from fan blades and around motor housing Oil motor with SAE 20 non detergent oil Refer to Pg 7 7 Replace fan assembly in track and re secure with fastening screws 8 Replace access panel Fig D 9 Replace electrical wires 10 Close service panels and lock with key turn electrical power ON and test operation of the unit Removing Int...

Page 9: ...it and test Primary Cooling coil Gain access to back side of coil through filter opening 1 Using a coil brush remove dislodge excess foreign matter 2 Vacuum loosened foreign matter 3 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 4 If required wipe up drips and excess spray a...

Page 10: ...n the U S installation must be in accordance with the most current issue of the National Electric Code ANSI NFPA 70 GENERAL ASSEMBLY AND INSTALLATION INSTRUCTIONS 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 Care should be taken to protect the p...

Page 11: ...n accordance to the installation drawings relative to the final installed position of the unit It will likely be necessary to provide a support header across the top of the opening to comply with local building code requirements Tip DO NOT install the exterior louver until after the Classroom Unit is fastened securely to the wall 1 Prior to assembly it may be necessary to trim the depth of the wal...

Page 12: ...m 1 Carefully unpack the plenum assembly The plenums sent with the units may vary in height or model and will be labeled with a CU if provided 2 Remove the front access covers from the appropriately selected five sided plenum assembly 1 On a clean flat unobstructed floor surface lay out the pieces of the standoff relative to the positions they are to be installed shown in the Installation Assembly...

Page 13: ...intained from the back of the unit to the backside of the exterior louver refer to job specific shop or installation drawings 3 To assure a tight seal between the classroom unit and the RPA apply 3 8 foam tape to the 1 wide front edges of the RPA and any partitions it may have Tip Keep the tape back from the outside edges by at least so the tape does not become unsightly when compressed 4 Position...

Page 14: ...er s Manual Dehumidification Unit Installation Drawings Freshman NA 00 1000 B C SV STANDARD NOTE All installation drawings provide information for installation of hot water steam and electric heat units 12 ...

Page 15: ...5 to diagnose the problems Replace any parts with original equipment replacement parts available through your Change Air representative Replacement parts and service are available through your local Change Air representative To find your local representative contact Canada 519 688 6363 U S 517 676 0700 or visit www changeair com TROUBLE SHOOTING GUIDE ATTENTION Change Air is not responsible for in...

Page 16: ...n and occupied set points from the thermostat Temperature protections move the fresh air damper to a minimum position when the mixed air temperature falls below 50 F Unoccupied Mode Fresh air damper is disabled Unit will operate on Heat Cool function cycling the high speed fan as required to meet unoccupied set points determined by the thermostat ATTENTION Change Air is not responsible for injury ...

Page 17: ... Problem related to iced over evaporator coil a Check for dirty air filter b Check for dirty evaporator coil c Possible restrictions in the capillary tube or low gas charge recheck fan speed d Check thermostat set point If room temperature drops below 70 F 21 C the evaporator may ice over during extended operation NOTE Mechanical cooling should not operate when outside temperature is below 60 F 17...

Page 18: ...517 676 0700 or visit www changeair com ATTENTION Improper installation adjustment alteration service or maintenance can cause property damage personal injury or loss of life Installation and maintenance must be done by a qualified installer service agency or authorized dealer OPERATION OF UNIT DURING CONSTRUCTION MAY VOID THE WARRANTY VDDOC3 Owner s Manual ...

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