Facility maintenance Key points-06-07-24.pptx

FM

1. FACILITIES MANAGEMENT M-MECHANICAL E-ELECTRICAL P-PLUMBING

2. MECHANICAL(HVAC) HVAC FIRE FIGHTING HEATING VENTILATION AND AIR CONDITIONING(HVAC): Parts of HVAC: Compressor Condenser Expansion valve Evaporator coil

3. HVAC COOLING CYCLE Compressor: It converts the low-pressure warm vapor into high pressure hot vapor by increasing the pressure. Condenser: It converts the vapor into liquid form by eliminating the refrigerant heat by extracting the heat to the atmosphere.

4. HVAC COOLING CYCLE Expansion valve: It reduces the Refrigerant’s temperature by reducing the pressure . Evaporator : It converts the low-pressure liquid form refrigerant into low pressure vapor form refrigerant by absorbing the heat from the return air.

5. TYPES OF REFRIGERANT S.NO REFRIGERANT IDEAL PRESSURE (PSI) RUNNING CONDITION SUCTION(PSI) DISCHARGE(PSI) 1. R22 150-155 60-70 250-300 2. R410A 225-230 120-130 450-500 3. R407C 180-185 75-80 275-300 4. R134A 85-95 20-40 150

6. HVAC DEFINITIONS: AHU- Air Handling Unit. FAHU- Fresh air Handling Unit. FCU- Fan Coil Unit. VRV- Variable Refrigerant Volume. VRF- Variable refrigerant Flow. VAV- Variable air Volume. CAV- Constant air Volume. VCD- Volume Control Damper. HVAC UNITS: CFM - Cubic feet per minute. BTU- British Thermal Unit. MBH- Mean breast Hour. RH- Relative Humidity. PSI- Pounds per square inch. L/S- Litter per second. TR - Ton of Refrigeration

7. CHILLED WATER CYCLING

8. UNIT CONVERSIONS S.NO BAR PSI PASCAL K.PASCAL 1. 1 14.50 100000 100 S.NO CFM L/S BTU MBH KCL 1 TON (TR) 400 847.55 L/S (1 L/S=2.1188 CFM) 12000 12 3000

9. Formulas Degree Celsius to Fahrenheit: F=(9/5 X C °)+32 Fahrenheit to Degree Celsius: C°=(F-32 )+5/9 Air Balancing: CFM= M/S X 1000 X area X 2.1189. M/S – Anemometer value. Area- Grill Size(length X Width). Water Balancing: L/s= (√PD X KVS)/36. PD- Mano meter value, KVS- DRV valve value, 36- Constant value.

10. Ducting Accessories: MFD- Motorized fire damper: It has a thermal sensor also to shut the damper It is used as an automatic shut-off device to prevent fire and smoke from spreading through  ducting  passing through walls and floors. During normal operation, the damper blade is open to enable air passage through the ventilation system. MSD- Motorized smoke damper: It can work in fire condition also. Which will be in closed condition normally and in case of smoke fan running condition it will be open. FD- Fire damper: Which will be in open condition normally with the help of meltable filament which will melt incase of fire hence it makes the damper close. NRD- Non return damper: They are used to prevent backflow and relieve pressure through ventilation and  duct  systems.

11. Fire Fighting and Fire alarm system

12. Name of the Pump Cut-in pressure (PSI) Cut-of pressure (PSI) Cut-off method Jockey (0 sec delay ) 130 145 Auto Main-Electric pump (0 sec delay ) 109 NA Manual Diesel Pump (15 sec delay ) 95 NA Manual Fire hydrant line max pressure-175PSI Fire pump operation sequence

13. Name of the system Standard pressure (Bar) Utilized areas FM-200 15 Hub Rooms & LV Rooms Inergen Fire suppression system 200 HUB room , UPS rooms& Data centers Hose reels 4.5-5 Near exit pathway for easy access Sprinkler (Melts at 68 Deg . Celsius) 350(GPM) Common areas(Office , parking , passage) Fire Fighting system-Types

14. Electrical Systems

15. Electrical Basic Formulas

16. IP Ratings

17. Key factors in Electrical Cable Sizing

18. Fundamental Characteristic of a Circuit Breaker S.no Abbreviation Description 1 Ue Rated operational voltage 2 U imp Rated Impulse voltage 3 In Rated current 4 Ir/Irth Overload relay trip current setting 5 Im Short circuit relay trip current setting. 6 Icu/Icn Rated short circuit- breaking capacity

19. Cable & Breaker Selection Chart

20. Plumbing system

21. Types of Pipes

22. Types of TRAPS

23. CAFM Priority Type Action time limit P1 Emergency maintenance(EM) (30-60mins) P2 Corrective maintenance(CM)-(Replacing accessories) 6Hours P3 Reactive maintenance(RM)-(Routine work) 24Hours P4 Variable/Miscellaneous works (With in 2 days need to provide proposal)

24. S.no Types of FM contract 1 AMC 2 DLP(Warranty maintenance) S.no Mandatory documents for new Project 1 As Built drawings & Project specifications 2 Material Submittal 3 Product catalogue 4 Supplier details 5 Spare parts list 6 O&M manuals & Commissioning report 7 Snagging & DE snagging

25. S.no Monthly Management Report Structure(MMR) 1 Project Info 2 PPM status 3 CM& RM status 4 Variable/Miscellaneous work status 5 Load test report 6 Utility(Electricity& Water) report with chart 7 Safety incident reports 8 Engineering checklists 9 Walkaround reports 10 Shutdown asset list 11 Recommendation for the project improvement

26. PPM frequency-(Based on the O&M manual/Client Requirement S.no Equipment/Service Description PPM Frequence 1 Water testing (Legionella/Biological analysis)- 3months 2 Fire fighting & Fire Alarm 3months 3 Air quality test (Fungus& Co2 level) 3months 4 Elevator Monthly &( Half yearly load test & 3 rd party inspection) 5 Hooks& Cranes 6Months &(yearly load test) 6 BMU/Cradle 3Months &(Half yearly load test) 7 DB,SMDB&MDB,ATS& MCC DB&SMDB-3month& MDB,ATS&MCC-Yearly 8 Earth pit Resistance and Thermography test Yearly

27. Essential services required Backup power(UPS/Generator) S.no Equipment/Service Description 1 CBS 2 Fire fighting & Fire Alarm 3 Servers , CCTV&ACS 4 Emergency lightings 5 Jet fans/Extract fans 6 Smoke extract fans& staircase pressurization fans