BMS Sequence of Operations

SEQUENCE OF OPERATION 1)

FAN FAN COIL COIL UNIT UNITS S ON/O ON/OFF FF Type Type with with retu return rn Te Temp mper erat atur uree sen senso sorr

Each Fan Coil Unit shall consist of a supply fan and a cooling coil complete with a 3 port On/Off control valve and a filter section.

The FCU’s will be controlled via wall mounted Temperature controller type XXX. A remote return air temperature sensor situated in the common return air path shall sense the actual return temperature and shall compare the actual temperature with its preset set point. The cont contro roll ller er shal shalll in turn turn sequ sequen ence ce the the On/O On/Off ff cont contro roll valv valvee to open open or close close ther therefo efore re maintaining the required room temperature. A 3 speed selector switch shall be available on the controller to allow the occupant to control the Fan speed at Low, Medium and High speed options. Drawing Reference :- ATE-STD-FCU-01

2)

FAN CO COIL UNIT UNITS S ON/ ON/OF OFF F Typ Typee wit with h Ro Room sens sensin ing g

Each Fan Coil Unit shall consist of a supply fan and a cooling coil complete with a 3 port On/Off control valve and a filter section.

The FCU’s FCU’s will will be contro controlle lled d via wall wall mounte mounted d Temper Temperatu ature re contro controlle llerr type type XXX. A Temperature sensor within the controller shall sense the actual space temperature and shall compare this with its preset set point. The controller shall in turn sequence the On/Off control valve to open or close, therefore maintaining the required room temperature. A 3 speed selector switch shall be available on the controller to allow the occupant to control the Fan speed at Low, Medium and High speed options. Drawing Reference :- ATE-STD-FCU-02

FAN COIL UNITS – Modulating Remote set point BMS

Each FCU shall comprise of supply fan a chilled water cooling coil complete with a 3 port control valve and a filter section.

A Temperature sensor (Type TT555/1000A) situated in the return air path to each of the fan coil unit shall relay the actual temperature to a unitary DDC controller (type XXXXX).

The controller shall in turn modulate a 3 port control valve, situated on the cooling coil to maintain the required room temperature; a room potentiometer as indicated in the drawing 1 of 18

SEQUENCE OF OPERATION

shall be installed. It shall be possible to set a minimum and maximum change from the designed setpoint to the engineer's approval. Each potentiometer shall have a temperature setpoint, On/Off and 4-position selector switch to provide auto, 1, 2 and 3 speeds.

Rooms with more than one FCU shall have a common Potentiometer to set the same temperature. The potentiometer shall be connected to a single controller acting as a master and this controller shall signal to the other controllers within the room which shall act as a slave.

When selected in Auto position the controller shall maintain the 2nd fan speed control when the setpoint is maintained and on a demand cooling the valve shall modulate open. If the temperature continues to rise the controller shall select the higher fan speed to meet the additional cooling requirement. If the temperature falls below its setpoint, the valve shall modulate closed and the controller shall select the low fan speed.

Each of the Fan Coil Unit controllers shall be arranged to allow for remote control and temperature indication from the Building Management System. Drawing Reference :- ATE-STD-FCU-03

FAN COIL UNITS Modulating


A Temperature sensor (Type TT555/1000A) situated in the return air path to each of the fan coil unit shall relay the actual temperature to a unitary DDC controller (type XXXX).

The controller shall in turn modulate a 3 port control valve situated on the cooling coil to maintain the required room temperature; a special gold plated room potentiometer shall be installed. It shall be possible to set a minimum and maximum change from the designed setpoint to the engineer's approval. Each potentiometer shall have a temperature setpoint, and 4-position selector switch to provide Off 1, 2 and 3 speeds.

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SEQUENCE OF OPERATION AHU – SINGLE ZONE

Each AHU shall comprise of supply and extract fans??? each with variable speed drives (VFD) controlled by differential pressure sensors, a chilled water cooling coil complete with a 3 port control valve, a Fresh Air Damper and a filter section.

Temperature Control

A duct temperature and Humidity sensor Type( xxx ) situated in the common return air shall relay the actual return temperature to a DDC controller Type (XXXXX), the controller shall compare this with its internal set point and on a demand for cooling shall modulate in a linear fashion the 3 port control valve on the cooling coil or in the event of heating the controller shall modulate a Thyristor unit controlling the electric duct heater battery to maintain the required return air temperature .

A duct temperature and Humidity sensor Type ( xxx ) located in the common supply duct shall in the event of over cooling limit the control valve to protect the system from over cooling.

The VFD shall also be controlled to vary its speed according to the cooling demand within the controlled space. The fresh air damper will adjust its position according to the speed of the VFD to supply the required fresh air.

A potentiometer with on/off switch shall be provided for setpoint adjustment and remote on/off of AHU. (non-circulating AHU’s only)

Humidity Control

A Duct Temperature and Humidity sensor Type( xxx

) situated in the common return air

shall relay the actual return temperature to a DDC controller Type (XXXX), the controller shall compare this with its internal set point and on a demand for dehumidification shall modulate in a linear fashion the 3 port control valve on the cooling coil to bring the system into a dehumidification cycle, during this period in the event of the system over cooling the controller shall modulate the Thyristor unit controlling the electric duct heater battery to maintain the required return air temperature.

Air flow Sensing

A differential pressure switch (PA-930-xx) situated across the supply fan shall be interlocked with the controls such that in the event of a fan failure it will cut off the electric heater 3 of 18


battery and the valve shall return the fully closed position the supply/exhaust fan motor will be switched off and an alarm will indicate an air flow failure alarm on the control panel. The same will be relayed back to the BMS terminal for indication of a priority maintenance alarm condition.

Dirty Filter Indication

A differential pressure switch (PA-930/xx) situated across the filter section shall monitor the filter condition and shall on a dirty filter condition indicate in the control panel a dirty filter alarm. The same will be relayed back to the controller for indication of maintenance alarm condition in the BMS terminal.

The Duct Temperature and Humidity sensor situated in the common supply duct will measure the actual supply temperature and relative humidity and this can be monitored on the BMS.

A Duct Smoke detector provided in the supply duct will sense the smoke and will shutdown the AHU in case of fire condition. The same will be relayed back to the controller for indication of critical alarm condition in the BMS.

The immersion temperature sensor situated in the common supply and return chilled water lines to the AHU will indicate the actual temperature back to the BMS Drawing Reference :- ATE-STD-AHU-05

AHU – MULTI ZONE (Feeding to VAV’s)

Each Multizone AHU shall comprise of supply and extract fans each with variable speed drives (VFD) controlled by differential pressure sensor in the supply air duct, a chilled water cooling coil complete with a 3 port control valve, and a filter section.

Temperature Control

A duct temperature and Humidity sensor Type( xxx ) situated in the common supply air shall relay the actual supply temperature to a DDC controller Type (XXXX), the controller shall compare this with its internal set point and on a demand for cooling shall modulate in a linear fashion the 3 port control valve on the cooling coil or in the event of heating the controller shall modulate a Thyristor unit controlling the electric duct heater battery to maintain the required supply air temperature . 4 of 18


Humidity Control

A Duct Temperature and Humidity sensor Type( xxx

) situated in the common return air

shall relay the actual return temperature to a DDC controller Type (XXXX), the controller shall compare this with its internal set point and on a demand for dehumidification shall modulate in a linear fashion the 3 port control valve on the cooling coil to bring the system into a dehumidification cycle, during this period in the event of the system over cooling the controller shall modulate the Thyristor unit controlling the electric duct heater battery to maintain the required return air temperature.

Pressure Control

A pressure sensor (type PA267-300) situated in the common supply air duct and one on the common exhaust duct shall sense the actual pressure and relay this to a DDC controller (type XXXX), the controller shall signal to the respective VFD to maintain a constant pressure in the duct at all times. If there is a change of state on any of the VAV terminal units the duct pressure shall maintain a constant pressure. The fresh air damper will adjust its position according to the speed of the VFD to supply the required fresh air.

A pressure switch (typePA980—) situated across the supply fan shall be interlocked with the controls and shall indicate an airflow failure on the relevant control panel in the event of an airflow failure and shall also signal an alarm condition to the BMS.

A differential pressure switch (type PA980—) situated across the filter shall indicate on the control panel in the event of a dirty filter condition shall also signal a maintenance alarm condition to the BMS.

In addition to the above, in the event of a fire condition signaled from the fire panel, all controls shall be shut down and the fan shall stop and a priority alarm shall be signaled to the BMS.

Air flow Sensing

A differential pressure switch (PA-DL4.5K) situated across the supply fan shall be interlocked with the controls such that in the event of a fan failure it will cut off the electric heater battery and the valve shall return the fully closed position the supply/exhaust fan 5 of 18


motor will be switched off and an alarm will indicate an air flow failure alarm on the control panel. The same will be relayed back to the BMS terminal for indication of a priority maintenance alarm condition.

Dirty Filter Indication

A differential pressure switch (PA-DL4.5K) situated across the filter section shall monitor the filter condition and shall on a dirty filter condition indicate in the control panel a dirty filter alarm. The same will be relayed back to the controller for indication of maintenance alarm condition in the BMS terminal.

The Duct Temperature and Humidity sensor situated in the common supply duct will measure the actual supply temperature and relative humidity and this can be monitored on the BMS. Drawing Reference :- ATE-STD-AHU-06

Fire and Smoke

A Duct Smoke detector provided in the supply duct will sense the smoke and will shutdown the AHU in case of fire condition. The same will be relayed back to the controller for indication of critical alarm condition in the BMS. The system shall also be interlocked with the Fire alarm system such that in the event there the fire system detects an alarm condition the system shall shut down the AHU. The same will be relayed back to the controller for indication of critical alarm condition in the BMS.

Chilled Water Indication

The immersion temperature sensor situated in the common supply and return chilled water lines to the AHU will indicate the actual temperature back to the BMS

VAV Terminal Units

Each terminal unit shall be controlled as follows

A temperature sensor (type TT555/1000A) situated in the return air path shall relay the actual return air temperature to a unitary DDC controller (type XXXX). The controller shall in turn sequence the VAV actuator to modulate open on a demand for cooling to maintain the required room temperature.

The controller shall include a differential pressure transducer 6 of 18


and built in air velocity sensor to measure the average differential pressure in the duct. The controller shall convert this value to actual airflow.

Each controller shall also incorporate an algorithm that allows for resetting of the associated air handling unit discharge temperature to satisfy space-cooling requirements. This algorithm shall function to signal the DDC Controller to perform the required discharge temperature reset in order to maintain the space temperature cooling setpoint.

VAV UNITS with re-heater

These units shall have an electric heater battery and the controller shall on an a requirement for heating open the damper to the necessary level and the controller shall modulate the Thyristor on the heater battery to maintain the set temperature within the controlled space. The heater output shall be interlocked such that if there is insufficient airflow the heater will not be allowed to operate. The heater output shall also be interlocked with the potentiometer switch inside the room to switch off the heater when the Off position is selected. The heater battery shall also be protected by a factory fitted high limit cut-out supplied by the heater manufacturer. Drawing Reference: - ATE-STD-VAV-04

FAN COIL UNITS


A Temperature sensor (Type TT555/1000A) situated in the return air path to each of the fan coil unit shall relay the actual temperature to a unitary DDC controller (type XXXX).

The controller shall in turn modulate a 3 port control valve, situated on the cooling coil to maintain the required room temperature; a room potentiometer as indicated in the drawing shall be installed. It shall be possible to set a minimum and maximum change from the designed setpoint to the engineer's approval. Each potentiometer shall have a temperature setpoint, On/Off and 4-position selector switch to provide auto, 1, 2 and 3 speeds. Rooms with more than one FCU shall have a common Potentiometer to set the same temperature. The potentiometer shall be connected to a single controller acting as a master

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and this controller shall signal to the other controllers within the room which shall act as a slave.


Each of the Fan Coil Unit controllers shall be arranged to allow for remote control and temperature indication from the Building Management System.

Kitchen Extract System (Typical extract !!!)

The Kitchen Extract and fresh air fans are interlocked with the corresponding AHU’s to Start/Stop along with the AHU’s. Also a common local On/Off switch will be provided all the Fans on a particular area for Start/Stop of Extract Fans. If the AHU feeding to the particular section is controlled through a VFD, the VFD will run at constant preset speed if the Extract Fans are ON to keep the air balancing proper.

Fresh Air Handling Units (feeding to VAV boxes)

Each shall comprise of supply and extract fans each with variable speed drives (VFD) controlled by differential pressure sensors, a chilled water cooling coil complete with a 3 port control valve and a filter section.

Temperature Control

A duct temperature sensor situated in the common supply air shall relay the actual supply temperature to a DDC controller (typeXXXX), the controller shall compare this with its internal setpoint and on a demand for cooling shall modulate in a linear fashion the 3 port control valve on the cooling coil to maintain the required supply air temperature.

Pressure Control

A pressure sensor (type PA267-300) situated in the common supply air duct and one on the common exhaust duct shall sense the actual pressure and relay this to a DDC controller (type XXXX), the controller shall signal to the respective VFD to maintain a constant pressure in 8 of 18


the duct at all times. If there is a change of state on any of the VAV terminal units the duct pressure shall change.



In addition to the above, in the event of a fire condition signaled from the fire panel, all controls shall be shut down and the fan shall stop and a priority alarm shall be signaled to the BMS. Drawing Reference :- ATE-STD-FAHU-07

VAV Terminal Units


A temperature sensor (type TT555/1000A) situated in the return air path shall relay the actual return air temperature to a unitary DDC controller (type XXX). The controller shall in turn sequence the VAV actuator to modulate open on a demand for cooling to maintain the required room temperature.

The controller shall include a differential pressure transducer

and built in air velocity sensor to measure the average differential pressure in the duct. The controller shall convert this value to actual airflow. Single point air velocity sensing shall not acceptable. The differential pressure transducer shall have a measurement range of 0 to 20 m/s and measurement accuracy of ±5% at 2 to 20 m/s, ensuring primary air flow conditions shall be controlled and maintained to within 5% of setpoint of the specified parameters. A room mounted potentiometer shall allow the operator the facility to adjust the temperature within a fixed range agreed with the engineer.

The controller shall function to maintain space temperature to within 1°C of setpoint at the room sensor location.

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Each controller shall also incorporate an algorithm that allows for resetting of the associated air handling unit discharge temperature if required to satisfy space-cooling requirements. This algorithm shall function to signal the DDC Controller to perform the required discharge temperature reset in order to maintain the space temperature cooling setpoint offering greater response times.

The DDC controllers shall be connected as shown in the drawing to allow for the remote control and temperature indication from the Building management system.

Fan coil Unit Control.

Fan coil units shall be installed as shown in the drawing.

A Temperature sensor (Type TT555/1000A) situated in the return air path to the fan coil unit shall relay the actual temperature to a unitary DDC controller (type XXXX) The controller shall in turn modulate a 3 port control valve ( thermic valves shall not be acceptable) situated on the cooling coil to maintain the required room temperature, a room potentiometer as indicated in the drawing shall be installed. It shall be possible to set a minimum and maximum change from the designed setpoint to the engineer's approval. Each potentiometer shall have a digital display and a temperature setpoint, On/Off and 4-position selector switch to provide auto, 1, 2 and 3 speeds.


The Fan Coil Unit DDC controllers shall be arranged to allow for remote control and temperature indication from the Building Management System.

Computer Room

This area shall be controlled by 2 Nos Close control split units running on a 1 run 1 No auto standby basis, these shall be supplied as a factory fitted control package to control the temperature with in 1 degree Celsius and the humidity to within 5% relative humidity. The 10 of 18


controls package shall be interfaced to connect to the BMS and shall show temperature humidity run trip and duty standby conditions as well as the number of compressor stages and the heater battery and humidifier operation in %. The units shall be automatically sequenced in a weekly basis or on a program to suit the engineer’s requirements.

Toilet Extract Fans

The toilet extract fans shall be of the twin fan type with built in airflow switch and a factory supplied control box with provisions to indicate any the status and any failure to the BMS.

Transfer fans

Where shown on the drawings shall be controlled and monitored by the BMS A pressure switch (typePA980—) situated across the supply fan shall be interlocked such that in the event an airflow failure this shall be indicated on the relevant control panel and shall also signal an alarm condition to the BMS.

Fresh Air AHU’s Temperature Control

A duct temperature sensor situated in the common supply air shall relay the actual supply temperature to a DDC controller (typeXXXX), the controller shall compare this with its internal setpoint and on a demand for cooling shall modulate in a linear fashion the 3 port control valve on the cooling coil to maintain the required supply air temperature.

Recirculation AHU’s

Recirculation Air Handling Units, each shall comprise of a supply fans a chilled water cooling coil complete with a 3 port control valve and a filter section.

Temperature Control

A duct temperature sensor situated in the common return air shall relay the actual return temperature to a DDC controller (type UCU—PGR), the controller shall compare this with its internal setpoint and on a demand for cooling shall modulate in a linear fashion the 3 port control valve on the cooling coil to maintain the required return air temperature.

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SEQUENCE OF OPERATION Occupancy/FA Control ( if required)

In order to optimize the quantity of fresh air a CO2 detector (type GS-CDD) shall be installed in the common return air duct of each recirculation unit to control the amount of fresh air introduced into the building. The sensor shall detect a rise in occupancy caused by human respiration. Once the level of CO2 rises above the set value the controller shall signal to a damper actuator (type XXX) mounted on the damper on the return and supply air ducts, to modulate in open in a linear fashion to maintain the required level of air quality. Air quality sensors shall not be acceptable for this purpose.




A pressure switch (type PA980—) situated across the supply fan shall be interlocked with the controls and shall indicate an airflow failure on the relevant control panel in the event of an airflow failure and shall also signal an alarm condition to the BMS.

A differential pressure switch (type PA980—) situated across the filter shall indicate on the control panel in the event of a dirty filter condition shall also signal a maintenance alarm condition to the BMS. In addition to the above, in the event of a fire condition signaled from the fire panel, all controls shall be shut down and the fan shall stop and a priority alarm shall be signaled to the BMS.

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SEQUENCE OF OPERATION Fresh Air AHU’s Temperature Control

A duct temperature sensor situated in the common supply air shall relay the actual supply temperature to a DDC controller (type xxx), the controller shall compare this with its internal setpoint and on a demand for cooling shall modulate in a linear fashion the 3 port control valve on the cooling coil to maintain the required supply air temperature.




Recirculation AHU’s

Recirculation Air Handling Units with fresh air supplied from a F/A AHU’s. Each shall comprise of a supply fans a chilled water cooling coil complete with a 3 port control valve and a filter section.

Temperature Control

A duct temperature sensor situated in the common return air shall relay the actual return temperature to a DDC controller (type xxx), the controller shall compare this with its internal setpoint and on a demand for cooling shall modulate in a linear fashion the 3 port control valve on the cooling coil to maintain the required return air temperature.


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Fan Coil Units

Each fan coil Unit shall consist of a 3 speed supply fan a chilled water cooling coil with a 3 port On/Off control valve and a filter section. An electronic temperature controller (type xxx) situated within the controlled space shall compare the actual space temperature with its internal setpoint and shall signal the 3 port control valve on the chilled water cooling coil to open or close to maintain the required space temperature. Other items to be monitored by the BMS where provisions should me made Fire pumps

The fire pumps shall be supplied complete with a factory built control panel and all necessary controls for the correct operation and shall be provided with auxiliary contacts for remote monitoring at the BMS. Compressed air plant

The Compressed air plant shall be supplied complete with a factory built control panel and all necessary controls for the correct operation and shall be provided with auxiliary contacts for remote monitoring at the BMS. Sump Pumps

Sump pumps where shown on the drawings shall give indication back to the BMS showing the run trip and status of the pumps in addition there shall be provisions for high level indication alarm.

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SEQUENCE OF OPERATION Exhaust Hoods

Where shown on the drawings the exhaust hood fans shall be controlled from a locally but the status of the run and trip indications shall be shown on the BMS.

A pressure switch (typePA980—) situated across the supply fan shall be interlocked with the controls and shall indicate an airflow failure on the relevant control panel in the event of an airflow failure and shall also signal an alarm condition to the BMS. In the event of a fire condition signaled from the fire panel, all controls shall be shut down and the fan shall stop and a priority alarm shall be signaled to the BMS. Electrical Switch boards

Each main breaker shall be monitored by the BMS in the event of any breaker being tripped this shall raise an alarm condition in the BMS. Generator

The generators shall also be monitored directly by the BMS via an interface and will show all the relevant indications like run fault oil pressure Water and oil tanks

All water and oil tanks shall have a level transducer fitted and connected back to the DDC controller, for level indication and alarm high/low level indications shall be monitored on the BMS. Each level transducer shall be of the Ultrasonic pulse echo type. It shall be housed in an IP68 housing which shall be fixed at the top of the tank and shall include a setup module complete with removable LCD display for accurate commissioning. It shall provide a 4-20 MA signal back to the DDC controller.

SECTION - 5 – OPERATION AND CONTROL Air Handling Units.

Each unit shall be of the spit type Air Cooled Condensing units with its associated Air Handling Unit, and shall be monitored and controlled from the BMS. Each shall comprise of supply and extract fans each with variable speed drives (VFD), a Direct Expansion cooling coil and a filter section.

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Temperature Control

A duct temperature and humidity sensor situated in the common return air shall relay the actual return temperature to a DDC controller (type UCU—PGR), the controller shall compare this with its internal setpoint and on a demand for cooling shall sequence in turn stages of the condenser unit or the thyristor controlling the electric heater battery to maintain the required return air temperature. A special potentiometer situated within the controlled space shall allow the operator the facility to adjust the temperature within a preset limit to be advised by the engineer. The actual setpoint shall be shown on the BMS.

Humidity Control

A duct temperature and humidity sensor situated in the common return air shall relay the actual return Relative humidity to a DDC controller (type xxx), the controller shall compare this with its internal setpoint and on a demand for dehumidification shall sequence in turn stages of the condenser unit putting the system into a dehumidification Cycle, during this period, the temperature sensor shall sense an overcooling and cycle the thyristor controlling the electric heater battery to maintain the required return air temperature.

Air Handling Units with VAV’s

These units shall be of the spit type Air Cooled Condensing units with its associated Air Handling Unit, these shall be monitored and controlled from the BMS. Each shall comprise of supply and extract fans each with variable speed drives (VFD) controlled by differential pressure sensors, a Direct Expansion cooling coil and a filter section.

Temperature Control

A duct temperature sensor situated in the common supply air shall relay the actual supply temperature to a DDC controller (type xxx), the controller shall compare this with its internal setpoint and on a demand for cooling shall sequence in turn stages of the condenser unit to maintain the required supply air temperature.

Pressure Control

A pressure sensor (type PA267-300) situated in the common supply air duct shall sense the actual pressure and relay this to a DDC controller (type xxx), the controller shall signal to the

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respective VFD to maintain a constant pressure in the duct at all times. If there is a change of state on any of the VAV terminal units the duct pressure shall change.




VAV Terminal Units (Each with electric heater battery)


A temperature sensor (type TT555/1000A) situated in the return air path shall relay the actual return air temperature to a unitary DDC controller (type xxx). The controller shall in turn sequence the VAV actuator to modulate open on a demand for cooling or to sequence the electric heater battery through a thyristor unit to maintain the required room temperature. The controller shall include a differential pressure transducer and built in air velocity sensor to measure the average differential pressure in the duct. The controller shall convert this value to actual airflow.

Single point air velocity sensing shall not acceptable. The

differential pressure transducer shall have a measurement range of 0 to 20 m/s and measurement accuracy of ±5% at 2 to 20 m/s, ensuring primary air flow conditions shall be controlled and maintained to within 5% of setpoint of the specified parameters. A room mounted potentiometer shall allow the operator the facility to adjust the temperature within a fixed range agreed with the engineer.

The controller shall function to maintain space temperature to within 1°C of setpoint at the room sensor location.

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Each controller shall also incorporate an algorithm that allows for resetting of the associated air handling unit discharge temperature if required to satisfy space-cooling requirements. This algorithm shall function to signal the DDC Controller to perform the required discharge temperature reset in order to maintain the space temperature cooling setpoint offering greater response times.

The DDC controllers shall be connected as shown in the drawing to allow for the remote control and temperature indication from the Building management system.

A safety thermostat at fitted on the electric heater battery shall in the event of overheating cut off the power to the heater and signal back to the BMS indicating there is a fault.

Toilet Extract Fans

The toilet extract fans shall be of the twin fan type with built in airflow switch and a factory supplied control box with provisions to indicate any the status and any failure to the BMS.

PARTICULAR SPECIFICATION FOR THE SUPPLY AND COMMISSIONING OF BUILDING MANAGEMENT SYSTEM (BMS)

SECTION - 6 - DRAWINGS AND SCHEDULES

PARTICULAR SPECIFICATION FOR THE SUPPLY AND COMMISSIONING OF BUILDING MANAGEMENT SYSTEM (BMS)

SECTION - 7 - RELATED SPECIFICATIONS FOR INFORMATION

General

7.00.01 The Work contained in this Specification shall be carried in accordance with the General Specification issued by DGPM November 2001 in so far as it applies. 7.00.02

The following additional Specifications are issued for guidance:-

a

Particular Specification for Chillers and Cooling Towers.

b

Particular Specification for Air Handling Units.

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BMS Sequence of Operations

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