Service, Maintenance and Repairs of Council's Airconditioning ...

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Air Distribution Action Interval (Months) Carry out random air flow check. Where air flow quantities are found to be out by more than the tolerance of 12 +/- 10% adjust the relevant items or systems and record the final result. (i.e. filters, coils, mixing boxes branch ducts etc.) 1. Check total air flow to each system and record results. 12 2. Confirm that there have been no amendments to the use of the areas supplied. 12 3. Check exhaust air flows for each system and record results. 12 4. Check minimum outdoor air quantities and record results. 12 5. Check return air flows for each system and record results. 12 Air Handling Plants Action Interval (Months) 1. Check coils clean out algae and slime as required. 1 2. Inspect drain trays, ensure drains are clear, trays are clean and drains have a water trap. 1 3. Check panels, doors and fastenings for security. Repair leaks. 6 4. Remove rubbish from conditioner housing. 6 5. Ensure insulation is secure, repair as necessary. 6 6. Replace defective lights. 6 7. Inspect flexible connections and repair as necessary. 6 8. Check for leaks in coils and piping connections and repair as necessary. 6 9. Lubricate damper linkages with recommended lubricant. 6 10. Inspect the casing for corrosion and leaks, repair as necessary. 12 Automatic & Safety Controls Electric and Electronic Controls Action Interval (Months) 1. Check temperatures on floors, in rooms or in any areas requiring special conditions. 1 2. Attend to any reported problems, check and adjust as necessary. 1 3. Check location of thermostats; ensure correct location relative to controlled area. 3 4. Check controls for physical damage. 3 5. Check operation of control linkages. 3 6. Check, clean and lubricate with approved lubricant, spindles & linkages. 6 7. Check & adjust, as necessary, the calibration of control sensors. 6 8. Check action and settings of time switches. 12 9. Inspect all controls for operation & cleanliness. 12 10. Check operation of each thermostat for response. 12 11. Check drive motor mountings for security. 12 12. Check linkages for tightness. 12 13. Check that step controllers function correctly and plant items respond as called. 12 14. Prove correct operation of any safety controls. 12 15. Check, clean and lubricate with approved lubricant, spindles & linkages. 12 16. Inspect all DDC systems and data gathering panels. 12 2
Chillers Action Interval (Months) 1. Check action of chilled water and condenser water flow switches. 1 2. Check TX valve and superheat. 6 3. Check operation and calibration of chilled water temperature controller to maintain the designed 12 temperature. 4. Check setting and operation of chilled water, low temperature safety thermostat, record trip temperature. 12 5. Check pressure drop (water side) in both chiller and condenser and compare with data plate. 12 6. Clean in-line strainers, replace or repair thermal insulation. Re-establish vapour seal around equipment. 12 7. Clean chiller tubes and slug dose after refilling. 24 8. Non-demountable chillers shall be cleaned with chemical cleaner and the system refilled and slug dosed. 24 9. Isolate chiller vessel from chilled water piping, drain. After service refill system. 24 10. Remove insulation and water boxes, clean. Fit new gaskets. 24 Coils Condensers Coils – cooling Action Interval (Months) 1. Check coils, clean algae and slime as required. 1 2. Inspect drain trays and test drains. Clean as required. 1 3. Check for leaks on coils and connections and repair as required. 6 4. Vent water coils. 6 5. Inspect coils for dirt build up and clean as necessary. 6 6. Inspect coils for fin damage and comb if necessary. 12 7. Examine coil to ensure internal sections are not blocked. 12 8. Check temperatures across coil, adjust as necessary. Record result. 12 9. Inspect feed and expansion tank and piping. 12 Condensers - Air Cooled Action Interval (Months) 1. Check and service fans, motors, drives and controls as per appropriate instruction sheet. 1 2. Adjust belts. 1 3. Remove dirt and debris from fan inlet screen. 1 4. Inspect coils for build up of dirt and clean out as necessary. Clean by hosing. 1 5. Inspect protective finish, repair as necessary. 12 6. Check operation and settings of any control dampers. 12 7. Inspect fan drives for correct rotation. 12 8. Inspect propeller fans for correct position in cone and check that the retaining screw is tight. 12 9. Inspect installation to ensure free air flow. 12 3
Page 1 and 2: BURDEKIN SHIRE COUNCIL PART 1 REQUE
Page 3 and 4: Request for Quotation 1. FORM OF QU
Page 5 and 6: Request for Quotation On Site Charg
Page 7 and 8: Request for Quotation Quotations re
Page 9 and 10: Request for Quotation It is the Con
Page 11 and 12: BURDEKIN SHIRE COUNCIL APPENDIX I A
Page 13 and 14: GRAND TOTAL HEAT 21.7KW GRAND SENSI
Page 15 and 16: PARKS FOREMAN OFFICE 1 MITSUBISHI G
Page 17: BURDEKIN SHIRE COUNCIL APPENDIX II
Page 21 and 22: Dampers Drives Dampers - Automatic
Page 23 and 24: Electric Motors Action Interval (Mo
Page 25 and 26: 4. Check isolation at pipe hangers,
Page 27 and 28: 1. Check and record, as applicable:
Page 29 and 30: BURDEKIN SHIRE COUNCIL APPENDIX III
Page 31 and 32: 23. CONFLICT OF INTEREST ..........
Page 33 and 34: General Conditions of Contract for
Page 45 and 46: 4. Risk Assessment Form The Contrac
Page 47 and 48: RISK ASSESSMENT FORM Page 2 The Ris
Page 49: Burdekin Shire Council 145 Young St

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