www.changeair.com
10
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.
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.
Preventative Maintenance
NOTE:
The following is a generalized list of maintenance procedures that pertains to
all Changeair Classroom Air Handlers, therefore one or more of the procedures may
not apply to your particular unit(s).
4.2 Cleaning Your Classroom Air Handler
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 filter(s) monthly or as required. (Refer to Pg 11)
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 Pg 14)
6.
Check Heating (if equipped) and Cooling Coils for cleanliness at the start of each
heating and cooling season. (Refer to Pg 17)
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.
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.
Before beginning with any
preventative maintenance,
you MUST follow these
safety precautions. Failure
to do so may result in
personal injury or death
