AHU 1

Cody Wiesen

Jordana Viuker

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System Diagram

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BUILDING SYSTEM FLOOR COMPONENT ZONE

Y2E2 AHU 1

BASEMENT

1ST FLOOR

2nd FLOOR

3rd FLOOR

CV B-1-3 ECV B-12-18 VAV B-1-4 EVAV B-12-14

B12 Teaching Lab

B19 Materials Storage

B26 Equipment Room

B27 Equipment Room

ECV 1-12-1 CV 1-1-3

103A Food Service

111 Lecture

ECV 2-12-1 CV 2-1-3

220 Men’s Room 293 John Kunz’ Office

SF 3-1 ECV 3-12-1 CV 3-1-4

Plenum

318 Men’s Room

324 Open Office

LEGEND

System served (arrow points away from it)

System serving (arrow points to it)

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GREEN LIGHT: System functioning as intended. No attention necessary and no risk of personal or financial harm. YELLOW LIGHT: Data indicate system performance is not as expected. Professional attention advised and possible risk of personal or financial harm. RED LIGHT: Data indicate that either sensors or system not functioning as expected. Professional attention necessary, as there is probable risk of personal or financial harm.

Traffic Light Legend

NOTE: Colored borders around graphs indicate lowest level of proper system functioning (i.e. if there is any yellow within the data, a yellow border is applied and likewise if there is any red, a red border is applied).

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Hot Water

Previous Graph - Colored entirely green - Hard to read - 60 minute interval

Revised Graph - Green border - Easier to read - 1 minute interval - More accurate analysis

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Chilled Water Flow Before

After

Before Further Investigation - Incomplete status assessment - Unsolved yellow lights After Further Investigation - Complete status assessment! - Yellow lights turned green - Insignificant discrepancy 6

Before

After

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Before Further Investigation - Neglected areas of concern - Undeserving status assessment

After Further Investigation - Exposed area of concern - Discrepancy significant - Complete status assessment!

Hot Water Flow

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Heating in Representative Office 371

All Clear - Interval at 1 minute

makes an already clear graph even clearer

- Heating system in 371 is working perfectly

- Status assessment: GREEN!

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1

2

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Before

After Before Verification - Unsolved yellow lights - HW turns on too early After Further Investigation - Time series plot refutes problem - Problem in SEEIT: not in the system - Status assessment: Green!

HW Flow in Representative Office 371

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Heat Recovery

2009 problem: • Heat recovery

cooling mode doesn’t coincide with coil cooling mode

2011 update: • Cooling coil valve

no longer open when heat recovery bypass damper is open

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Supply vs. Return Temp.

2009 problem: • Active beam hot

water supply & return water temps reversed & values inconsistent with hot water system level temperatures

2011 update: • Hot water supply &

return temps have correct relationship; correct system temperature level

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Heating Coil Valve Position

2009 problem: • Heating coil valve

cycles open and closed rapidly

2011 update: • Problem fixed

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Wiki Explained

• Step 1: Click “Group 3”

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Wiki Explained Cont’d.

• Step 2: Use our table of contents to navigate

• One continuous page for your convenience

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Recommendations

• All inconsistencies marked as “yellow” should be further examined to determine whether they are “red” or “green.”

– Hot Water Flow Rate vs. Active Beam Heating Valve Position

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Thank you.

Questions?

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