Aintenance; Filters; Blower Package; Economizer-Optional - Liebert nteleCool 2 User Manual

6.0 M

AINTENANCE

WARNING
!
Risk of electric shock. Can cause injury and death. Disconnect all local and remote electric
power supplies before working within.
Potentially lethal voltages exist within this equipment during operation. Observe all cautions
and warnings in this manual. Only qualified service and maintenance personnel should work
with this equipment.
6.1

Filters

Replaceable evaporator air filter(s) are supplied with the unit. The filter(s) are easily serviceable from
the outside, through the top front access panel.
Filters are usually the most neglected item in an environmental control system. To maintain efficient
operation, they should be checked monthly and changed as required. Units supplied with Economiz-
ers may require replacement filters more frequently because of airborne dust and organic materials.
Filters can be replaced from the front by opening the lower front access panel.
WARNING
!
Risk of electric shock. Can cause injury and death. Disconnect all local and remote electric
power supplies before replacing filters.
6.2

Blower Package

Periodic checks of the blower package include: blower wheels, housings, motor and motor mounting
bracket. With the power off, inspect and remove any debris from the wheels and housings. Also check
to see that they are tightly mounted on the motor shaft and rotate freely without rubbing against the
housing.
WARNING
!
Risk of electric shock. Can cause injury and death. Disconnect all local and remote electric
power supplies before inspecting the blower equipment.
6.3 Economizer—Optional
Each month, the Economizer should be inspected and any debris removed from the intake hood,
damper blade and enthalpy sensor.
6.4

Heat

Heaters can be serviced and/or removed from inside through the discharge opening or from outside by
removing the top.
WARNING
!
Risk of electric shock. Can cause injury and death. Disconnect all local and remote electric
power supplies before working on the heaters.
6.5

Refrigeration System

Each month, the components of the refrigeration system should be inspected for proper function and
signs of wear. Since, in most cases, evidence of malfunction is present prior to component failure, peri-
odic inspections can be a major factor in the prevention of most system failures.
6.5.1

Refrigerant Lines

Check all refrigerant lines and capillaries for vibration isolation, and support as necessary. Visually
inspect all refrigerant lines for leaks.
15
Maintenance