A
HE, DE & RE MANUAL
IOM-26
26 of 33
Oct 12 R4
MAINTENANCE
Warning:
This unit is connected to high voltages. Electrical shock or death could occur
if instructions are not followed. This equipment contains moving parts that
can start unexpectedly. Injury or death could occur if instructions are not
followed. All work should be performed by a qualified technician. Always
disconnect and lock out power before servicing. DO NOT bypass any
interlock or safety switches under any circumstances.
Warning:
Follow the cleaning instructions and recommended inspection schedule to
reduce the risk of mold or other bacterial growth. Property damage or
personal injury claims may result from mold or biological growth arising from
improper installation, inadequate maintenance, or failure to inspect.
Engineered Air has no responsibility for and makes no express or implied
warranties regarding mold or bacterial growth or any other indoor air quality
issues. If mold or biological growth is present, determine and fix the cause.
Properly remove and dispose of the contamination. Properly clean and
sanitize the affected area using only approved sanitizers suitable for HVAC
equipment.
To provide a maintenance history, It is recommended that the owner have a maintenance file for each unit.
The following maintenance instructions are to be carried out each spring and fall or as otherwise
indicated by qualified service personnel.
Caution:
Label all wires prior to removal when servicing controls or critical
components. Wiring errors can cause improper and dangerous operation.
Verify proper operation after servicing.
ELECTRICAL
1.
Check all wiring for loose connections.
2.
Check voltage at unit (while in operation).
3.
Check amperage draw against unit rating plate.
4.
Where possible, all contactors should be inspected to ensure that contacts are clean and are
making good contact. If contacts are abnormally pitted or burned badly, replace contactor. Single
phasing and motor burnouts can result from bad contacts.
