DACC - NMDA BUILDINGS

Transcription

1 A PROJECT FOR: LAS CRUCES, NEW MEXICO PROJECT LOCATION LOCATION MAP INDEX OF DRAWINGS: CV001 - COVER SHEET M101 - OVERALL CAMPUS STEAM UTILITY PLAN M102 - DACC DAMA 341 PLAN M103 - DACC LRC & CLASSROOM BUILDING PLANS M104 - DACC TRADES BUILDING PLAN M105 - DACC HEALTH AND PUBLIC SERVICE BUILDING PLAN M106 - NMDA FACILITY PLANS M107 - MECHANICAL ROOM LAYOUTS M201 - MECHANICAL SCHEMATICS AND DETAILS M202 - MECHANICAL SCHEMATICS AND DETAILS M203 - MECHANICAL SCHEMATICS AND DETAILS COVER SHEET CV001

2 OVERALL CAMPUS STEAM UTILITY PLAN OVERALL CAMPUS STEAM UTILITY PLAN M101

3 SOUTH MECHANICAL ROOM PLAN - DAMA 341 DACC BASEMENT MECHANICAL ROOM PLAN - DAMA 341 DACC DAMA 341 PLAN DACC - DAMA 341 FLOOR PLAN M102

4 DACC LEARNING RESOURCES CENTER (LRC) PLAN - 1ST FLOOR DACC GENERAL CLASSROOMS BUILDING PLAN - 1ST FLOOR DACC LRC & CLASSROOM BUILDING PLANS M103

5 DACC TRADES BUILDING PLAN DACC TRADES BUILDING PLAN M104

6 DACC HEALTH & PUBLIC SERVICES PLAN - 1ST FLOOR DACC HEALTH AND PUBLIC SERVICE BUILDING PLAN M105

7 NMDA FACILITY PLANS NM DEPARTMENT OF AGRICULTURE - BASEMENT PLAN NM DEPARTMENT OF AGRICULTURE PLAN M106

8 MECHANICAL ROOM LAYOUTS OUTDOOR MECHANICAL ROOM SCHEMATIC PLAN - OUTDOOR MECHANICAL ROOM - OPTION 2 OPTION 2 - CENTRAL PLANT FOR LRC & 341 BUILDING CONCEPT PLAN CENTRAL MECHANICAL ROOM MECHANICAL ROOM SCHEMATIC PLAN - OPTION 1- INDIVIDUAL BOILE SYSTEMS M107

9 END OF MAIN LINE STEAM TRAP HEATING BOILER SCHEMATIC MECHANICAL SCHEMATICS AND DETAILS M201

10 HWR TEMP No Project Information RAYPAK BOILER PLANT UC600-6 FLOW AI SYSTEM POINT DESCRIPTION HOT WATER DIFFERENTIAL PRESSURE X AI X X X SENSOR FAILURE NOTE 1 HOT WATER RETURN TEMPERATURE LOCAL X AI X X X SENSOR FAILURE HOT WATER SUPPLY TEMPERATURE LOCAL X AI X X X SENSOR FAILURE OUTDOOR AIR TEMPERATURE LOCAL X AI X X X SENSOR FAILURE BOILER 1 ALARM X BI X BOILER ALARM BOILER 2 ALARM X BI X BOILER ALARM BOILER PUMP 1 STATUS X BI X X NOTE 1 BOILER PUMP 2 STATUS X BI X X NOTE 1 HOT WATER PUMP 1 STATUS X BI X NOTE 1 HOT WATER PUMP 2 STATUS X BI X NOTE 1 HOT WATER PUMP 1 SPEED OUTPUT X AO NOTE 1 HOT WATER PUMP 2 SPEED OUTPUT X AO NOTE 1 BOILER 1 ENABLE COMMAND X BO NOTE 1 BOILER 2 ENABLE COMMAND X BO BOILER PUMP 1 START STOP OUTPUT X BO NOTE 1 BOILER PUMP 2 START STOP OUTPUT X BO HOT WATER PUMP 1 START STOP OUTPUT X BO NOTE 1 HOT WATER PUMP 2 START STOP OUTPUT X BO NOTE 1 CONTROLLER SPARE HARDWARE POINTS ANALOG INPUT(S) 1 UNIVERSAL INPUT(S) 3 ANALOG OUTPUT(S) 1 GENERAL NOTES GRAPHIC HARDWARE INPUT HARWARE OUTPUT POINT TYPE SOFTWARE POINT HARDWARE INTERLOCK 1. DISPLAYED AT THE BAS USER INTERFACE IF PRESENT BOILER PLANT - SYSTEM POINTS LIST WIRELESS NETWORK DEFAULT VALUE HIGH ANALOG LIMIT ALARMS LOW ANALOG LIMIT BINARY LATCH DIAGNOSTIC SERSOR FAIL COMMUNICATION FAIL DIAGNOSTICS NOTE 1 NOTES Sequence of Operations RAYPAK BOILER PLANT Flow General Description: The hot water system consists of multiple boilers and associated pumps. The Building Automation System (BAS) controller shall provide stand-alone control or BAS workstation control of the supply heating water temperature setpoint (adj.) by controlling the boiler s enable/disable boiler signal. The BAS controller's optional Tracer TD7 Color Touch Screen Display shall be password protected to prevent unauthorized access. Heating System Enable/Disable: The heating system shall be enabled when the outside air temperature falls below 60.0 deg. F (adj.) or on a command for dehumidification. When enabled, the BAS controller shall start the lead hot water distribution pump, the lead boiler circulating pump, and enable the lead boiler. The boiler factory control shall operate the boiler to maintain its local supply setpoint. Heating shall be disabled when the outdoor air temperature is above 65.0 deg. F (adj.) and there is no command for dehumidification. When heating is disabled, the hot water pumps and boilers shall be commanded to OFF. The BAS controller's optional Tracer TD7 Color Touch Screen Display shall be able to individually enable the hot water distribution pumps, the boiler circulating pumps, or the boilers. Boiler Control: The boiler lead/lag sequence shall be based on a weekly schedule. From the BAS controller's optional Tracer TD7 Color Touch Screen Display or a BAS workstation, an operator shall be able to manually change the lead/lag sequence. If the hot water distribution system supply temperature falls more than 25.0 deg. F (adj.) below setpoint for a period longer than 15 minutes (adj.), or if an active boiler signals a failure alarm, the BAS controller shall enable the lag boiler. In addition, the BAS controller shall send an alarm to the BAS workstation. When a boiler failure exists, lead/lag automation shall be disabled and the currently running boiler shall become the lead boiler. Once the problem is corrected, the operator shall be able to clear the alarm failure from the BAS controller or BAS workstation. This shall reenable the lead/lag sequence. Once the lead boiler is enabled, the add sequence of additional boilers shall be disabled for a period of 30 minutes (adj.). Additional boilers are added if the hot water distribution system supply temperature falls 5.0 deg. F (adj.) below the hot water setpoint for a period of 10 minutes (adj.) or more. The last boiler enabled shall be disabled when the hot water temperature rises 5.0 deg. F (adj.) above the hot water setpoint for a period of 10 minutes (adj.) or more. Additional boilers shall be disabled following the same subtraction sequence if the hot water temperature remains 5.0 deg. F (adj.) above the hot water setpoint for a period of 10 minutes (adj.) or more. Hot Water Reset: The hot water supply temperature setpoint shall be linearly reset from deg. F (adj.) to deg. F (adj.) as the outside air temperature falls from 60.0 deg. F (adj.) to 0.0 deg. F (adj.) Hot Water Distribution Pump Start/Stop: The BAS controller shall start a hot water pump through a contact closure of the pump s variable frequency drive (VFD) run-enable contacts. Hot Water Distribution Pump Status: The BAS controller shall detect hot water pump run status by a VFD current switch. Hot Water Distribution Pump Lead/Lag: The hot water pump lead/lag sequence shall be based on a weekly schedule. From the BAS controller's optional Tracer TD7 Color Touch Screen Display or a BAS workstation, an operator shall be able to manually change the lead/lag sequence. If the lead pump speed falls below 40% (adj.) for five minutes (adj.) the lag pump shall be disabled. Hot Water Distribution Pump Failure: If the lead start/stop relay is enabled and the current switch status is off for more than 30 seconds (adj.), the BAS controller shall annunciate a hot water pump failure alarm to the BAS workstation and starts the lag pump. When a pump failure exists, lead/lag automation shall be disabled and the currently running pump becomes the lead pump. Once the problem has been corrected, the operator shall be able to clear the alarm failure from the BAS controller or BAS workstation. This action shall reenable the lead/lag sequence. Hot Water Distribution Pump Speed: The BAS controller shall monitor the hot water system differential pressure sensor. When the pump VFD is enabled, the BAS controller shall control the analog speed signal sent to the pump VFD to maintain a hot water differential pressure setpoint of 50.0 psig (adj.). Pump Optimization: The BAS shall continually monitor the hot water control valve position of all AHU's in the hot water system. At hot water system startup, the hot water pressure setpoint is 100% of the maximum pressure setpoint. When all hot water valves are less than 85% open, the hot water differential pressure setpoint shall be lowered by 0.1 psig (adj.) of the current hot water differential pressure setpoint. This occurs every 5 minutes until at least one valve is more than 85% open, or if the setpoint is equal to the minimum hot water differential pressure setpoint, or if the pump VFD's are at a minimum speed setting (22 Hz). When any hot water valve is more than 95% open, the hot water pressure setpoint shall increases by 0.1 psig (adj.) of the current hot water differential setpoint. This occurs every 5 minutes until no valve is more than 95% open, or if the hot water differential pressure setpoint has risen to the system s maximum setting, or if the pump VFD's are at the maximum setting (60 Hz). Freeze Protection: When the outdoor air temperature falls below 35.0 deg. F (adj.), the hot water distribution pump shall operate continuously to provide hot water circulation to all associated hot water coils. If the hot water supply temperature falls below deg. F (adj.) during unoccupied periods, the boiler sequence shall be enabled to safeguard against low water temperature and boiler condensation. HB-1 BLR 1 CMD BO BI HB-2 BLR 2 CMD BO BI SKT SKT HWP - 1 BLR 1 PUMP STARTER S/S BO STS BI HWP - 2 BLR 2 PUMP STARTER S/S BO STS BI HWS TEMP AI ExP HWP 1 VFD S/S BO SPD AO STS BI ExP HWP 2 VFD S/S BO SPD AO STS BI OUTDOOR TEMPERATURE SENSOR AI HWR HWS BOILER CONTROL SCHEMATIC MECHANICAL SCHEMATICS AND DETAILS M202

11 ONICON BTU METER SCHEMATIC IN-LINE BOILER PRIMARY PUMP SCHEMATIC MECHANICAL SCHEMATICS AND DETAILS NMSU METERING COMMUNICATION LAYOUT SCHEMATIC SYSTEM SPECIALTIES PIPING SCHEMATIC M203