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Freshman Series - Owner's Manual - Installation, Operation, and Service Instruction - Version 1.1 EN
Before beginning with any preventative maintenance, you MUST follow these safety
precautions. Failure to do so may result in personal injury or death
General Preventative Maintenance
5.0 General Preventative Maintenance
5.1 General Information
By performing proper preventative maintenance your unit will
operate economically and dependably. Instructions for basic
maintenance are found below.
1. Always turn OFF electrical power supply before cleaning
the unit or performing any maintenance.
2. Although special care has been taken to minimize sharp
edges, take extra care when handling parts or reaching
into units.
3. Label all wires prior to disconnecting. Wiring errors can
cause improper and dangerous operation. Verify proper
operation after service.
NOTE:
The following is a generalized list of
maintenance procedures that pertains to
all Changeair Air Handlers, therefore one or
more of the procedures may not apply to
your particular unit(s).
5.2 Cleaning The Vertical Classroom Unit
Exterior
Annually or as needed, thoroughly clean cabinet exterior
using a soft absorbent cloth, mild soap and water and/or non
abrasive non-acidic cleaner.
Interior
1. Clean the interior annually or as needed.
2. Check and clean or replace air lter(s) monthly or as
required. (Refer to Section )
3. Thoroughly vacuum entire unit.
4. Wipe down metal parts as needed.
5. Clean fan assemblies. Refer to the Maintenance Section
on Fans. (Refer to Page 12)
6. Check Heating and Cooling coils (if equipped) for clean-
liness at the start of each heating and cooling season
(Refer to Page 13) .
7. Disinfect drain pan and drain lines (if equipped).
8. Check electrical connections for tightness and controls
for proper operation, including the damper actuator(s)
annually.
9. Check condensate drain and drain lines at the beginning
of each season. ( A/C Units Only).
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.
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