CeilAir CW series Instrukcja Operatora Pobierz pdf (Strona 45)

(©July, 2008)

CeilAiR OHS Series Installation, Operation & Maintenance Manual

ir Technology Systems, Inc.

4-1

4.0 Maintenance

4.1 Periodic General Maintenance

Systematic, periodic general maintenance of the

CeilAiR unit is recommended for optimum system

performance. General maintenance should include,

but is not limited to, the following: replacing filters and

humidifier cylinders, tightening electrical connections,

checking the condensate line to ensure it is free of

debris, cleaning the interior of the unit, inspecting the

units' components visually, checking belt tension,

checking level of refrigerant and ensuring no moisture

in the refrigerant.

Use copies of the Periodic General Maintenance

Checklist in this manual (see Appendix A) to record

periodic general maintenance inspections. For

assistance, contact the SATS Product Support Group.

Ensure to adhere to all safety statements while

performing any type of maintenance.

WARNING

This equipment should be serviced and repaired

by a journeyman or a qualified refrigeration tech-

nician only.

WARNING

Turn off power to unit at the service disconnect

switch unless you are performing tests that re-

quire power. With power and controls energized,

unit could begin operating automatically at any

time.

Hazardous voltage will still be present at evapo-

rator, condenser, heat/reheat and humidifier,

even with the unit turned off at the control panel.

To isolate unit for maintenance, turn off power

at non-fused service switch.

Always disconnect main power prior to perform-

ing any service or repairs. To prevent personal

injury, stay clear of rotating components be-

cause automatic controls may start them

unexpectedly.

WARNING

This unit employs high voltage equipment with

rotating components. Exercise extreme care to

avoid accidents and ensure proper operation.

WARNING

Phosgene, a deadly, poisonous gas, is gener-

ated when refrigerant is exposed to flame. Al-

ways ensure adequate ventilation during refrig-

eration repairs.

Always recover all refrigerant prior to any sys-

tem repairs, failure to do so may result in sys-

tem over pressurization and rupture.

4.1.1 Precision A/C Unit

4.1.1.1 Filter

The filter is usually the most neglected item in an air

conditioning system. To maintain efficient operation,

the filter should be checked at least monthly and

replaced as required.

NOTE

Conditions of spaces vary and filters should be

checked based on those conditions.

4.1.1.2 Blower

The blower motor is provided with permanently lubri-

cated bearings and should not require lubrication for

the lifetime of the equipment. Periodic checks of the

blower system should include checking the wiring,

blower motor mounts, housing bolts and blower wheel.

Ensure all electrical connections are tight. Check that

all mounts are secure and the blower wheel is tightly

mounted on the shaft and does not rub against the fan

housing. The blower vanes should be kept free of

debris.

4.1.1.3 Coils

The coil(s) should be inspected semi-annually and

cleaned as required following standard coil cleaning

practices. Using a brush, clean fluid coil fins of all debris

that will inhibit airflow. This can also be done with

compressed air or with a commercial coil cleaner. Check

for bent or damaged coil fins and repair as necessary.

Check all refrigerant lines and capillaries for vibration

isolation and support if necessary. Check all piping for

signs of leaks.

Inspect electric heating elements to ensure they are free

of debris semiannually.

4.1.1.4 Drain Pan

To assure proper drainage, inspect the drain pan

regularly. Make sure the drain pan outlet is always free

of debris and ensure drain pan does not leak.

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