Block – A2
CHAPTER VI
BUILDING MANAGEMENT SYSTEM
Preamble:
The IT complex, comprises of high & medium rise towers. The engineering utilities are planned to
be stand-alone for each of the towers. In order to have close control and efficient monitoring of the
utilities, each of the towers is equipped with stand-alone Building Management System – BMS,
which encompasses generally the engineering utilities. This chapter overs the details of such
utilities covered by the BMS for the block A2 being proposed now,
BMS Architecture:
The BMS being proposed, as per the guidelines established in earlier blocks, generally
encompasses the engineering utilities. That too for the core and shell part of the development only
and for the interiors, the tenant / occupant shall be providing the BMS as per their choice. Also, for
specific blocks occupied by Tenants, as per their practice, the entire BMS is provided by them and
NOT by the promoters. However, for the needs of energy billing, instruments and devices along
with software and PC are installed by the Owners.
Utilities:
The BMS’s scope is limited to the engineering utilities and in most of the cases only monitoring
them is the prime scope. Only in cases control activity is initiated. The following are the utilities
being considered in the BMS.
HVAC system.
Chiller plant and Chiller Plant Management (CPM) system,
Secondary Pump control (stand-alone and by pump supplier)
AHU system,
Enthalpy wheel system,
Basement Ventilation Jet Fan System (stand-alone and clubbed with
fan supplier).
Block – A2
Other ventilation systems, viz., for toilets, STP, stairwell
pressurization, lift well pressurization, etc.,
Other Utilities.
Basement pump room equipment including fire pumps, WTP, RO
plant, tank levels, cooling tower OHT transfer, etc.,
Sewage Treatment Plant system, cooling tower water treatment
plant, CT water OHT transfer, tank levels, etc.,
Electrical system at MV panel level for gathering main power data,
at sub-panel levels for gathering energy meter data for energy billing
needs.
Integrating the DG system.
Energy Billing.
Integrating the BTU meters installed at various points, the energy
meters and generating the energy billing for the various tenants based
on the monthly EB bill input.
Basement car Park Jet Fan System.
Integrating the stand-alone jet fan DDC for status information.
Block – A2
I/O Schedule:
Representative detail of the I/Os for various systems are detailed hereunder:
I/O Schedule for AHU (for 2nos. AHUs in 1 AHU room)
AI AI (0-
Sl.no Description AO DI DO Input/Output Device
(Ni1000) 10V)
1 FAN on/off Command 2 Potential free contact
2 FAN Run status 2 MCC supplier
3 FAN A/M Status 2 Potential free contact
4 FAN Trip Status 2 Potential free contact
DP Switch supply, Install and
5 Diff. Pressure across Filter 2
Wiring BMS vendor
DP Switch supply, Install and
6 Diff. Pressure across SA Fan 2
Wiring BMS vendor
Room Return air Temperature Temp. Sensor supply, Install and
7 Sensor 1
Wiring BMS vendor
AHU Coil outlet air Temperature Temp. Sensor supply, Install and
8 Sensor 2
Wiring BMS vendor
DP Sensor supply, Install and
9 Duct Static Pressure sensor 2 Wiring to VFD by Tenant's HVAC
Contractor
10 Fan Motor VFD Control 2 From DDC
Valve + Actuator supply, Install by
11 Chilled Water Valve -2 Way 2 2
HVAC vendor
Co2 Sensor Supply, Install by
12 CO2 monitor 1
Tenant's HVAC Contractor
Damper + Actuator supply, Install
13 Fan Outlet VCD 2
by HVAC vendor
Fire Trip Command from Control From Control Module of Fire
14 Module 1
Alarm System.
Software Integration of AHU BTU
meter to download all features for Btu meter supply by HVAC
15
billing. vendor - 2 Nos
Software Integration of AHU VFD
to download all features as VFD Supply by HVAC vendor - 2
16
specified. Nos
I/O's Required for AHU 4 4 6 11 2
Spare 1 1 3 2 1
Total 5 5 9 13 3
DDC Location Respective AHU Rooms.
Block – A2
I/O Schedule for 1 No. HRW , 1 No. TEF , 1 No. SPF (when ventilation fans are near HRW)
Block – A2
AI
AI (0-
Sl.no Description (Ni100 AO DI DO Input/Output Device
10V)
0)
Heat Recovery Wheel
1 Supply Fan on/off Command 1 Potential free Contact
2 Supply Fan Run status 1 MCC supplier
3 Supply Fan A/M Status 1 Potential free Contact
3A Supply Fan Trip Status 1 Potential free Contact
4 Exhaust Fan on/off Command 1 Potential free Contact
5 Exhaust Fan Run status 1 MCC supplier
6 Exhaust Fan A/M Status 1 Potential free Contact
6A Exhaust Fan Trip Status 1 Potential free Contact
7 Diff. Pressure across SA Fan 1 DP Switch
8 Diff. Pressure across EA Fan 1 DP Switch
9 Diff. Pressure across SA Filter 1 DP Switch
10 Velocity Sensor at Supply air duct. 1 Velocity Sensor.
11 SA Enthalpy Sensor 1 Enthalpy Sensor
12 RA Enthalpy Sensor 1 Enthalpy Sensor
13 Heat Recovery Wheel on/off Command 1 Potential free Contact
14 Heat Recovery Wheel run Status 1 MCC supplier
15 Heat Recovery A/M Status 1 Potential free Contact
Toilet Exhaust Fan
16 FAN on/off Command 1 Potential free Contact
17 FAN Run status 1 MCC supplier
18 FAN A/M Status 1 Potential free Contact
18A FAN Trip Status 1 Potential free Contact
19 Diff. Pressure across SA Filter 1 DP Switch
Stairwell Pressurization
20 FAN on/off Command 1 Potential free Contact
21 FAN Run status 1 MCC supplier
22 FAN A/M Status 1 Potential free Contact
22A FAN Trip Status 1 Potential free Contact
Terrace Fire Tank
23 Fire Water Tank Level - Low 1 Level Switch
24 Spare 2 3 2 5 2
I/O's Required 2 6 2 24 7
DDC Location Terrace - Outdoor
Note: For Control Logic, refer technical
specifications.
HRW - Heat Recovery Wheel
SPF - Stair Well Pressurization Fan
TEF - Toilet Exhaust Fan
Block – A2
I/O Schedule for Basement Pump Room
AI AI Input / Output
Sl.no Description AO DI DO
(Ni1000) (0-10V) Device
1 Jockey Pump Run Status 1 MCC
2 Main Fire Pump Run Status 1 MCC
Stand-by electrical pump / Diesel
3 Pump run status 1 MCC
4 Sprinkler Pump Run Status 1 MCC
5 Fire Water Line Pressure 1 Pr. Sensor.
6 Raw Water Pump-1 run status 1 MCC
7 Raw Water Pump-2 run status 1 MCC
8 Sand Filter Pressure Drop 1 DP Sensor
9 ACF Pressure Drop 1 DP Sensor
10 Drain Pit Pump-1 run status 1 MCC
11 Drain Pit Pump-2 run status 1 MCC
12 Drain Pit High Level 1 Level Switch
13 Drain Pit Low Level 1 Level Switch
14 Fire Water Tank Level - Low 1 Level Switch
15 Raw Water Tank Level - Low 1 Level Switch
16 Treated Water tank level - Low 1 Level Switch
17 Spare 1 1 1
Software integration of 2 nos.
Hydro-pneumatic pumps (for
18 domestic & RO water) and get
pump run status and line
pressures. - MODbus
I/O's Required for the pump 0 2 0 12 5
room
LOCATION OF DDC Basement Pump Room.
Block – A2
I/O Schedule for STP
AI AI (0- Input / Output
Sl.no Description AO DI DO
(Ni1000) 10V) Device
1 Effluent Transfer Pump Run status - 2nos. 2 PFC in MCC
2 Blower Pump Run status - 2nos. 2 PFC in MCC
3 Screw Pump Run status - 2nos. 2 PFC in MCC
4 Sludge Recirculation Pump Run status - 2nos. 2 PFC in MCC
5 Collection Pit Pump Run status - 2nos. 2 PFC in MCC
6 Collection Pit Low Level - 1no 1 Level Switch
7 Raw Water Pump-1 & 2 run status 2 PFC in MCC
8 Sand Filter Pressure Drop 1 DP Sensor
9 ACF Pressure Drop 1 DP Sensor
10 Softener Feed Pump 1 & 2 Run Status 2 PFC in MCC
11 Treated water tank High / low levels 2 Level Switch
12 Softened Water tank High / low levels 2 Level Switch
Softened water OHT transfer pump on/off
13 2 PFC in MCC
command
14 Softened water OHT transfer pump RUN Status 2 PFC in MCC
STP SA & EA fans
Potential free
15 FAN on/off Command 2
contact
16 FAN Run status 2 MCC supplier
Potential free
17 FAN A/M Status 2
contact
Potential free
18 FAN Trip Status 2
contact
19 Diff. Pressure across Fan 2 DP Sensor.
20 Spare 4 2
Software integration of 1 no. Hydro-pneumatic
pumping system (for flush water) and get pump run
21 status and line pressures. - MODbus
I/O's Required for the pump room 0 0 0 35 6
LOCATION OF DDC STP Room
Block – A2
CONSTANT PRIMARY & VARIABLE SECONDARY FLOW CHILLER PLANT MANAGER
INPUT / OUT PUT SUMMARY (3 WORKING + 1 STANDBY CHILLERS)
Sl # POINTS DESCRIPTION DI AI DO AO REMARKS
A CHILLER PLANT CONTROL WITH PUMPS
1 CHW PRIMARY PUMP RUN STATUS 4 PFC FROM MCC PANEL
2 CHW PRIMARY PUMP AUTO STATUS 4 PFC FROM MCC PANEL
3 CHW PRIMARY PUMP START/STOP 4 START/STOP SIGNAL
4 CHW PRIMARY PUMP TRIP STATUS 4 PFC FROM MCC PANEL
5 CHILLED WATER SUPPLY TEMPERATURE 1 IMMERSION TEMP. SENSOR
6 CHILLED WATER RETURN TEMPERATURE 1 IMMERSION TEMP. SENSOR
7 CHW SECONDARY PUMP RUN STATUS 2 PFC FROM MCC PANEL
FLOW ESTABLISHMENT THROUGH
8 CHILLER 4 DIFF. PRESS TRANSDUCER
9 CHILLER ON / OFF COMMAND 4 PFC FROM MCC PANEL
10 CHILLER ON / OFF STATUS 4 PFC FROM MCC PANEL
11 CHILLER ISOLATION VALVE OPEN/CLOSE 4 OPEN/CLOSE SIGNAL
12 CHILLER ISOLATION VALVE STATUS 4 FROM VALVE END SWAITCH
13 CONDENSER WATER PUMP RUN STATUS 4 PFC FROM MCC PANEL
14 CONDENSER WATER PUMP AUTO STATUS 4 PFC FROM MCC PANEL
15 CONDENSER WATER PUMP ON / OFF 4 START/STOP SIGNAL
16 CONDENSER WATER PUMP TRIP STATUS 4 PFC FROM MCC PANEL
17 COOLING TOWER RUN STATUS 3 PFC FROM MCC PANEL
18 COOLING TOWER AUTO STATUS 3 PFC FROM MCC PANEL
19 COOLING TOWER ON / OFF 3 START/STOP SIGNAL
20 COOLING TOWER TRIP STATUS 3 PFC FROM MCC PANEL
21 COOLING TOWER SUMP TEMPERATURE 3 IMMERSION TEMP. SENSOR
22 SUMP LOW WATER LEVEL 4 LEVEL SWITCH
23 SPARE POINTS 4 1 2 1
Software Integration of the Secondary pump VFD
24 controller from pump suppliers.
TOTAL NO. OF POINTS 51 10 21 1
