Trane Axiom GWS Series, Инструкция по установке, эксплуатации и обслуживанию

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66 WSHP-SVX015C-EN
Table 21. Belt tension measurements and deflection forces
Belts Cross
Section
Small P.D Range
Deflection Force (Lbs.)
Super Gripbelts Gripnotch Steel Cable Gripbelts
Min. Max. Min. Max. Min. Max.
A
3.0 -3.6 3 4 1/2 3 7/8 5 1/2 3 1/4 4
3.8 - 4.8
3 1/2
5
4 1/2 6 1/4 3 3/4 4 3/4
5.0 - 7.0 4 5 1/2 5 6 7/8 4 1/4 5 1/4
B
3.4 - 4.2 4
5 1/2 5 3/4
8
4 1/2 5 1/2
4.4 - 5.6
5 1/8 7 1/8 6 1/2 9 1/8 5 3/4 7 1/4
5.8 - 8.8
6 3/8 8 3/4 7 3/8 10 1/8
7
8 3/4
Monthly Maintenance
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Before completing the following checks, turn the unit
OFF and lock the main power disconnect switch open.
Failure to disconnect power before servicing can cause
severe personal injury or death.
Filters
Inspect the return air filters. Clean or replace them if
necessary. Refer to the unit Service Facts for filter
information.
Condensate Overflow Switch
During maintenance, the switch float (black ring) must
be checked to ensure free movement up and down.
Return Air Smoke Detector Maintenance
Airflow through the unit is affected by the amount of
dirt and debris accumulated on the indoor coil and
filters. To insure that airflow through the unit is
adequate for proper sampling by the return air smoke
detector, complete adherence to the maintenance
procedures, including recommended intervals between
filter changes, and coil cleaning is required.
Periodic checks and maintenance procedures must be
performed on the smoke detector to insure that it will
function properly. For detailed instructions concerning
these checks and procedures, refer to the appropriate
section(s) of the smoke detector Installation and
Maintenance Instructions provided with the literature
package for this unit.
Cooling Season
• Check the unit’s drain pans and condensate piping
to ensure that there are no blockages.
• Inspect the evaporator for dirt, bent fins, etc. If the
coil appears dirty, clean it according to the
instructions described in “Coil Cleaning” later in
this section.
• Inspect the F/A-R/A damper hinges and pins to
ensure that all moving parts are securely mounted.
Keep the blades clean as necessary.
• Verify that all damper linkages move freely;
lubricate with white grease, if necessary.
• Check supply fan motor bearings; repair or replace
the motor as necessary.
• Check the fan shaft bearings for wear. Replace the
bearings as necessary.
• Check the supply fan belt. If the belt is frayed or
worn, replace it. Refer to the “Fan Belt Adjustment”
section for belt replacement and adjustments.
• Verify that all wire terminal connections are tight.
• Remove any corrosion present on the exterior
surfaces of the unit and repaint these areas.
• Generally inspect the unit for unusual conditions (e.
g., loose access panels, leaking piping connections,
etc.)
• Make sure that all retaining screws are reinstalled in
the unit access panels once these checks are
complete.
• With the unit running, check and record the:
ambient temperature; compressor suction and
discharge pressures (each circuit); superheat (each
circuit);
Record this data on an “operator’s maintenance log”
like the one shown in the sample maintenance log. If
the operating pressures indicate a refrigerant shortage,
measure the system superheat. For guidelines, refer to
the “Compressor Start-Up” section.
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