Building System Guidelines

Building System Performance Guidelines

The Stanford Building System Performance Criteria Guide (BSPCG) is a set of guideline design documents to be used by faculty, staff, and design professionals during the planning and early design phases of a project. These reference documents illustrate the guidelines related to the variety of systems found on the Stanford campus. The Stanford BSPCG is to be used in conjunction with the Facilities Design Guidelines and applies to construction projects for all Stanford University facilities, including leased properties.

The Stanford BSPCG is not "all inclusive". It does not cover all of the facility systems found in the buildings nor does it cover all design criteria.

Central Vacuum Guidelines

	Typical Lab
1. Vacuum ( Hg)	>24"
2. Pumping Capacity @ 24" Hg	Per Project Requirement
3. Redundancy a. Vacuum Pump	a. Yes
4. Emergency Power	No
5. Alarms a. Vacuum Switch b. Vacuum Transmitter	a. Yes b. no

Compressed Air Guidelines

ISO8573 Air Quality Standards	Typical General Duty (Class 4)	Typical Lab (Class 2)
1. Oil (Parts per million by weight)	<4	<0.08
2. Dew Points (°F)	<38	<-40
3. Solid Particles (# particles per m3)	<1000	<10
4. Design Air Pressure (psig)	>100	>100
5. Flow Rate (CFM) a. Computed Total Load b. Leak Loss and Future Expansion Factor c. Total Compressor Capacity d. Load Profile (Peak/Part Loads)	a. Per Project Requirement b. Per Project Requirement c. Per Project Requirement d. Per Project Requirement	a. Per Project Requirement b. Per Project Requirement c. Per Project Requirement d. Per Project Requirement
6. Redundancy a. Compressor b. Filtration c. Drier	a. No b. No c. No	a. No b. No c. No
7. Emergency Power	No	Yes
8. Alarms a. Pressure b. Dew Point c. Compressor Failure	a. Yes b. No c. Yes	a. Yes b. No c. Yes

DDC Controls Guidelines

	Typical Project
1. Type of DDC System a. LON-Mark open protocol	a. Yes
2. Graphics Type a. Web accessible	a. Yes
3. Graphics Display a. Floor plan with room number b. Floor plan with space T° c. Room or T° to change color based on deviation from set points. d. Click on room to open graphic for room control. e. Each room graphic to list all set points, outputs and inputs f. Ability to override valve/damper position and set points	a. Yes b. Yes c. Yes d. Yes e. Yes f. Yes
4. DDC Capability a. Provisions for alarms and trending b. Communication bi-directionally with EM&CS using Modbus- RTU communications	a. Yes b. Yes
5. Network connections a. Web server to be connected to facilities private LRE network. b. All DDC communication wiring to be separate from building network wiring. Do not use building Ethernet for LON communication.	a. Yes b. Yes
6. Emergency Power a. All DDC components to be connected to standby power if available. b. Any component that will not automatically restart after power loss must have UPS back-up.	a. Yes b. Yes

Deionized Water Guidelines

	Typical Lab
1. Flow rate (gpm)	Per Project Requirement
2. Supply Pressure (psi)	Per Project Requirement
3. Temperature ( °F)	Per Project Requirement
4. Quality a. Resistivity (M-Ohm) @ 25°C b. Total Oxidizable Carbon (ppb) c. Particles ( cts/L) d. Oxygen (ppb) e. Bacteria (cfu/vol) f. Silica (ppb) g. Metals & other elements (ppt)	a. 4-18 b. Per Project Requirement c. Per Project Requirement d. Per Project Requirement e. Per Project Requirement f. Per Project Requirement g. Per Project Requirement
5. Redundancy a. Storage Tank b. Pumps	a. Yes b. Yes
6. Emergency Power	No
7. Alarms a. Pressure b. Resistivity c. Particles d. TOC e. Silica f. Tank High & Low Alarm	a. Yes b. Yes c. No d. No e. No f. Yes

Environmental Guidelines

	Typical Lab	Critical Lab
1. Temperature ( °F)	70°F +/- 3°F	70°F +/-1.8°F
2. Relative Humidity (%)	None	45%+/-5%
3. Noise Level rating	RC 45	RC 35
4. Vibration (micro inches per second)	None	<125
5. Illuminance Level (fc)	70 to 100	70 to 100
6. Clean room (ISO/Class)	None	ISO 5/ C100
7. Alarms a. Temperature b. Relative Humidity c. Clean Room	a. Yes b. None c. None	a. Yes b. Yes c. Yes

Process Cooling Water Guidelines

	Typical Lab
1. System Design a. Open Tank b. Closed Loop	a. Yes b. No
2. Flow rate (gpm)	Per Project Requirement
3. Maximum Supply Pressure (psi)	Per Project Requirement
4. Differential Pressure (psi)	Per Project Requirement
5. Temperature ( °F)	60 - 65
6. Quality a. Particles (µm) b. pH value c. Electrical conductivity (µS/cm) d. Other	a. <50 b. Per Project Requirement c. Per Project Requirement d. Per Project Requirement
7. Redundancy a. City Water back up b. Pumps	a. Yes b. Yes
8. Emergency Power	No
9. Alarms a. Pressure b. Temperature c. Pump Failure	a. Yes b. Yes c. Yes