Service, Maintenance and Repairs of Council's Airconditioning ...
Service, Maintenance and Repairs of Council's Airconditioning ...
Service, Maintenance and Repairs of Council's Airconditioning ...
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4. Check isolation at pipe hangers, repair as necessary. 12<br />
Packaged A/C Plant<br />
Pipe work<br />
Action<br />
Interval<br />
(Months)<br />
1. Inspect plant for physical damage <strong>and</strong> make good. 1<br />
2. Check all components are secure. Rectify as required. 1<br />
3. Check operation through heating <strong>and</strong> cooling sequence. Report on defects. 1<br />
4. Check insulation is secure. Report on defects. 1<br />
5. Check drains <strong>and</strong> drip tray are clear. Clean as required. 1<br />
6. Check refrigerant charge through site glass where fitted. 1<br />
7. Lubricate in accordance with Manufacturer’s recommendation. 1<br />
8. Record on/<strong>of</strong>f coil temperatures. 6<br />
9. Fit set <strong>of</strong> gauges to refrigerant circuit, record readings. 12<br />
10. Check <strong>and</strong> adjust refrigerant charge, record readings. 12<br />
11. Clean air cooled condenser coils, examine for damage, comb as necessary. 12<br />
12. Simulate loading <strong>of</strong> compressor. Check operation <strong>of</strong> control stages. 12<br />
13. Clean inlet side <strong>of</strong> evaporator coil. 12<br />
14. Remove equipment where maintenance is not possible in situ, replace after<br />
12<br />
maintenance.<br />
15. Clean water cooled condensers, check for corrosion. 12<br />
16. Check casing for corrosion, clean dry <strong>and</strong> make good. 12<br />
17. Check for broken frame supports or missing or loose bolts. Report on defects. 12<br />
18. Check for icing on coil <strong>and</strong> investigate if necessary. Report on defects. 12<br />
19. Check operation <strong>of</strong> defrost systems <strong>and</strong> devices. 12<br />
Pipe work - Refrigeration<br />
Action<br />
Interval<br />
(Months)<br />
1. Check for frosting; adjust gas charge or TX control valve setting if necessary. 1<br />
2. Check temperature (<strong>and</strong> pressure drop where possible) across refrigerant drier. 1<br />
3. Check operation <strong>of</strong> solenoid valves <strong>and</strong> TX valves. 1<br />
4. Check all pipes <strong>and</strong> valves for leaks using a detector. Rectify as necessary. 6<br />
5. Check that pipes <strong>and</strong> gauges are securely fixed. Report on defects. 6<br />
6. Check operation <strong>of</strong> all manual valves. Ensure that all valve caps have copper seal 12<br />
rings fitted.<br />
7. Test <strong>and</strong> reset TX valve superheat settings. 12<br />
8. Check operation <strong>of</strong> solenoid valves. 12<br />
9. Clean all strainers. 12<br />
Plant Rooms<br />
Action<br />
Interval<br />
(Months)<br />
1. Remove all waste materials, rags, old media <strong>and</strong> the like. 1<br />
2. All machinery to be wiped down <strong>and</strong> left in clean <strong>and</strong> tidy condition. 1<br />
3. Maintain floors in clean state by occasional mopping with detergent. 1<br />
4. Replace lamps as necessary <strong>and</strong> maintain fittings in clean condition. 1<br />
5. Ensure all drains are clear. 1<br />
6. Check that fresh air inlets are not blocked with stored materials <strong>and</strong> that cleaning 1<br />
equipment, <strong>and</strong> other odorous materials are not stored in fresh air plenums.<br />
7. Advise on remedial painting or other building work required. 12<br />
9
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