View PDF - Royal BC Museum

Continuous Optimization for Commercial Buildings Program

Retrocommissioning Final

Report

Jan 31 2013

Prepared for:

The Royal BC Museum Corp

Victoria, BC

COP10-322

Prepared by:

Avalon Energy Management

300-1245 Esquimalt Rd

Victoria, BC

HOTO OF BUILDING]

BC Hydro Final Report Template of 46

© Copyright 2008 PECI

TABLE OF CONTENTS

INTRODUCTION ....................................................................................................................................................... 5

1.0 PROJECT OVERVIEW ................................................................................................................................. 6

2.0 PROJECT RESULTS ..................................................................................................................................... 7

3.0 IMPLEMENTED MEASURES ...................................................................................................................... 8

3.1 MEASURE 1: ARCHIVES CHILLER PUMP ON ONLY IF CHILLER ...................................................................... 8 Overview ........................................................................................................................................................... 8 Measure ............................................................................................................................................................. 8 Measure Maintenance .................................................................................................................................. 8

3.2 MEASURE 2: BETTER CONTROL ARCHIVES REHEAT .................................................................................. 9 Overview ........................................................................................................................................................... 9 Measure ............................................................................................................................................................. 9 Measure Maintenance ................................................................................................................................ 10

3.3 MEASURE 3: REDUCE AHU RUN HOURS ............................................................................................... 10 Overview ......................................................................................................................................................... 10 Measure ........................................................................................................................................................... 10 Measure Maintenance ................................................................................................................................ 11

3.4 MEASURE 4: REDUCE EXHIBITS & FANNIN PUMP RUN HOURS ................................................................ 12 Overview ......................................................................................................................................................... 12 Measure ........................................................................................................................................................... 12 Measure Maintenance ................................................................................................................................ 13

3.5 MEASURE 5: REDUCE SECURITY 5 KW RESISTANCE WARM-UP ................................................................. 13 Overview ......................................................................................................................................................... 13 Measure ........................................................................................................................................................... 13 Measure Maintenance ................................................................................................................................ 14

3.6 MEASURE 6: F10 W CORRIDOR MAT DECOUPLED FROM 3N RA ........................................................... 15 Overview ......................................................................................................................................................... 15 Measure ........................................................................................................................................................... 15 Measure Maintenance ................................................................................................................................ 16

3.7 MEASURE 7: REPAIR AH2 OCCUPANCY SENSOR ...................................................................................... 16 Overview ......................................................................................................................................................... 16 Measure ........................................................................................................................................................... 16 Measure Maintenance ................................................................................................................................ 16

3.8 MEASURE 8 : REDUCE INTEGRAL ON SF4 (7CON17) ............................................................................... 17 Overview ......................................................................................................................................................... 17 Measure ........................................................................................................................................................... 17 Measure Maintenance ................................................................................................................................ 17

3.9 MEASURE 9: DDC CONTROL AH5 ......................................................................................................... 18 Overview ......................................................................................................................................................... 18 Measure ........................................................................................................................................................... 19 Measure Maintenance ................................................................................................................................ 19

3.10 MEASURE 10: RAISE 2N & 3N GALLERY RT-SP FROM 20 TO 21C ................................................... 20 Overview ......................................................................................................................................................... 20 Measure ........................................................................................................................................................... 20 Measure Maintenance ................................................................................................................................ 21

3.11 MEASURE 11: PUT COOL ‘STAT ON 2ND EAST ELECTRIC RM FAN ....................................................... 21 Overview ......................................................................................................................................................... 21



Measure ........................................................................................................................................................... 21 Measure Maintenance ................................................................................................................................ 21

3.12 MEASURE 12: TUNE GIFT HCV & MAD CONTROLLER ....................................................................... 22 Overview ......................................................................................................................................................... 22 Measure ........................................................................................................................................................... 22 Measure Maintenance ................................................................................................................................ 23

3.13 MEASURE 13: BETTER CONTROL EXHIBITS REHEAT .............................................................................. 23 Overview ......................................................................................................................................................... 23 Measure ........................................................................................................................................................... 23 Measure Maintenance ................................................................................................................................ 24

3.14 MEASURE 14: USE SF-8 & 11 HUMIDIFIERS ......................................................................................... 24 Overview ......................................................................................................................................................... 24 Measure ........................................................................................................................................................... 25 Measure Maintenance ................................................................................................................................ 25

3.15 MEASURE 15: RETROFITS 15,16,17 – ............................................................................................... 25 REDUCTIONS ON EXISTING SPEED DRIVES ........................................................................................................... 25

Overview ......................................................................................................................................................... 25 Measure ........................................................................................................................................................... 25 Measure Maintenance ................................................................................................................................ 26

3.16 MEASURE 16: RETROFIT 18 - E+ BOILER HSWT-SP ........................................................................ 27 Overview ......................................................................................................................................................... 27 Measure ........................................................................................................................................................... 27 Measure Maintenance ................................................................................................................................ 27

3.17 MEASURE 17: RETROFIT 19, 20, 21 – NEW SPEED DRIVES ............................................................... 28 Overview ......................................................................................................................................................... 28 Measure ........................................................................................................................................................... 28 Measure Maintenance ................................................................................................................................ 28

3.18 MEASURE 18: RETROFIT 22 - NEW AC UNIT FOR AV RM .................................................................. 29 Overview ......................................................................................................................................................... 29 Measure ........................................................................................................................................................... 29 Measure Maintenance ................................................................................................................................ 30

3.19 MEASURE 19: RETROFIT 23 -ALLOW SF8 MAD TO OPEN PAST 50% .................................................. 30 Overview ......................................................................................................................................................... 30 Measure ........................................................................................................................................................... 30 Measure Maintenance ................................................................................................................................ 30

3.20 MEASURE 20: RETROFIT 24 - ALLOW CH-12 ON AT LOWER OAT ....................................................... 31 Overview ......................................................................................................................................................... 31 Measure ........................................................................................................................................................... 31 Measure Maintenance ................................................................................................................................ 31

3.21 MEASURE 21: RETROFIT 25 - SUMMER PURGE FOR AH1-5 ................................................................. 32 Overview ......................................................................................................................................................... 32 Measure ........................................................................................................................................................... 32 Measure Maintenance ................................................................................................................................ 32

3.22 MEASURE 22: RETROFIT 26 -REDUCE FANNIN WR EF9 RUN HOURS ................................................... 33 Overview ......................................................................................................................................................... 33 Measure ........................................................................................................................................................... 33 Measure Maintenance ................................................................................................................................ 33

3.23 MEASURE 23: RETROFIT 27 - GENERAL MAINTENANCE ..................................................................... 34 Overview & Recommendations ............................................................................................................... 34 Measure Maintenance ................................................................................................................................ 35

4.0 UPDATED BUILDING DOCUMENTATION ......................................................................................... 36



ATTACHMENT A: IMPLEMENTATION SUMMARY TABLE ........................................................................ 38

ATTACHMENT B: TRAINING OUTLINE ........................................................................................................... 43

ATTACHMENT C: TRAINING COMPLETION FORM .................................................................................... 44

© Copyright 2008 by Portland Energy Conservation, Inc. (PECI). This material may not be distributed or reproduced without the express written permission of PECI.



Introduction

Through the BC Hydro Continuous Optimization for Commercial Building Program, 27 measures were

implemented at The Royal BC Museum, resulting in an estimated annual energy savings of $31,434. To

ensure that these savings persist over time, it is vital that the facilities staff and service contractors,

current and future, are aware of the implemented measures and the actions that need to be taken in order

to support and maintain each measure.

This document is a complete record of the work performed at this facility, including the in-depth

investigation of the building systems and the implementation of selected measures to optimize building

performance.

Avalon provided the professional services for this project and any questions related to this document can

be directed to:

C.Op Provider Firm Name: Avalon Mechanical Consultants

C.Op Provider Main Contact: Bob Landell

Address: 300-1245 Esquimalt Rd

City, Province, Postal Code: Victoria, BC V9A 3P2

Phone Number: 250 384 4128 x103

Email: [email protected]



1.0 Project Overview

Project Information Project/Building Name Royal BC Museum

Building Owner RBCM Corp

Building Location 675 Belleville Street, Victoria, BC V8W 9W2

Project Start Date 12/15/2011

Project Completion Date 7/31/2012

Contact List C.Op Provider Bob Landell

C.Op Firm Avalon Energy Management

email [email protected]

phone (250) 384-4128

Building Owner Representative Pam Lowings


phone 250 387-3361

Building Engineer Tanya Duce


phone (250) 387 3007

BC Hydro Program Representative Graham Henderson


phone (604) 453-6471



2.0 Project Results

The primary objective of the project at this facility was to identify deficiencies in the operation of a

facility’s mechanical equipment, lighting, and related controls, and determine opportunities for corrective

action and other operational and maintenance improvements that reduce energy consumption and

demand.

To perform the investigation, Avalon assessed the facility’s equipment and operations. Functional

performance testing was used to verify the intended operation of individual components and systems

under various conditions and modes of operation, and analysis of system data occurred either through

trends from the building automation system or by the use of portable data logging equipment.

A complete list of findings was provided after the investigation at the meeting between the Owner,

Avalon, and the BC Hydro Program Representative to select measures for implementation. Over Nov,

2011 through Jan 2013, 27 opportunities were identified at The RBCM.

Once the RCx investigation was complete, 27 measures were selected for implementation, listed below:

1 Arch ChP on only if Chiller

2 Better Control Archives Reheat

3 Reduce AHU Run Hours

4 Reduce Pump Run Hours

5 Reduce Security 5 kW resistance warm-up

6 F10 W Corridor MAT Decoupled from 3N RA

7 Repair AH2 Occ sensor

8 Reduce Integral on SF4 7con17

9 DDC Control AH5

10 Raise 2N & 3N Gallery RT-SP from 20 to 21C

11 Put Cool Stat on 2nd E Elect Rm TF

12 Tune Gift HCV & MAD Controller

13 Better Control Exhibits Reheat

14 Use SF-8 & 11 Humidifiers

15 Reduce RF12b Speed

16 Reduce ASD speed on AH4

17 SF-8 & SF-11 VFD Reductions

18 E Boiler HSWT-SP

19 Put ASD on AH Totem

20 Put ASD on EF WR

21 Put ASD on SF Ent

22 New AC unit for AV Rm

23 Allow SF8 MAD to open past 50%

24 Allow Ch-12 to come on at lower OAT

25 Summer Purge for Worst 2 Zones AH1-5

26 Reduce Fannin WR EF9 Run Hours

27 General Maintenance



3.0 Implemented Measures

The following section provides information about the implementation of these measures and documents

the actions that need to be taken in order to maintain each measure.

3.1 Measure 1: Archives Chiller Pump On Only if Chiller

Overview

The 1 hp chilled water pump that serves the cooling coil in the Archives AHU was found to be operating

needlessly while the chiller was off.

Measure

Reprogram so that pump cannot operate unless the “chilled water available” variable is in effect.

Create trend log of PP-Arch status and “chilled water available” variable and alarm if pump running

unnecessarily.

Please see the following separate graphs and charts that illustrate evidence of how measure was verified:

The implementation information for this measure is summarized in the table below:

Completion date Jan 15 2013

Implementation cost $90

Projected energy and cost savings 161 kWh and 0 kW, or $12

XXXX therms, or $XXXX

Non-energy impacts maintenance reductions

Contact information for

Implementer/Contractor

Houle Controls , Joe LeRoy, 250 388

5665 ([email protected]) Victoria

Measure Maintenance

Upon project completion, the recommended method for verifying that this measure is implemented

properly is periodic review of runtime logs.



3.2 Measure 2: Better Control Archives Reheat

Overview

Most Archives perimeter radiation systems and reheat coils are not under the control of the building DDC

system.

Simultaneous pneumatic heating and AHU chiller or free cooling can occur.

SAT set point set according to RTavg, can cause unnecessary cooling during heating season.

Night setback can be prevented.

Measure

Provide DDC control of the 9 largest zone reheat coil HCVs and 1 Room Temp Sensor per zone. Note

that this is less than half the number of existing reheat coils (24).

Convert stacks (6 coils), and Coil 18, 2 coils in public area = 9 HCV EPTs and 9 RTS.

Control existing actuators with EPTs.

Create trend logs for AHU runtime, SAT_SP, RT, RT_SP, and reheat HCV%.


Completion date Dec 15, 2012




Non-energy impacts Improved comfort, artefact preservation,

maintenance







Measure Maintenance


properly is to site verify HCVs stroking and full closure at 0%, and review trend logs for good control

and operation as per design intent.

3.3 Measure 3: Reduce AHU Run Hours

Overview

Conversation with Facilities staff indicated that certain AHU weekly schedules were longer than

necessary. These 8 units were identified:

- EH AHU1 - EH AHU5 - RF Add'n

- SF Add'n - E Coor HP - Rm 23 EF2 &3 (10op4 &5)

- EF WR - Fannin EF8 Janitor

Run time logs should be maintained.

If the other recommendations of the report concerning DDC upgrade of SF-5, and the reheat in Archives

and Exhibits are implemented, then there may be non-public areas where occupancy follows regular work

hours, and room temp setbacks could be instituted.

Measure

Place all weekly and annual BACnet schedules on a central graphic for quick and easy adjustment.

BACnet schedules can be pre-programmed for many years. The following is a list of holidays to be pre-

programmed for non-public areas:

Days Holiday

1 Labour day

1 Thanksgiving

1 Remembrance Day

3 Xmas (3 days)

1 Good Friday

1 Easter Monday

1 Victoria Day

1 BC Day

1 Canada Day

11 per year

Some weekly schedules have been reduced already in an effort to reduce the amount of dry air being

brought into the building. This dry air was causing difficulties in maintaining mandated relative humidity

in critical the ASHRAE AA galleries. The possibility exists of having RBCM staff adjust schedules

every Friday –based on information from Event Planning- but this has not been assumed in the

calculations.




Completion date Sept 20, 2012









Measure Maintenance


properly is :

the Annual and Weekly schedules should be checked in the DDC system;

after a statutory holiday, runtime logs for unit commands and fan status (usually amps) should

both be compared to the intended schedules.

On a regular basis going forward, a Building Operator should review the unit status run times to ensure

that fans are not on too long.



3.4 Measure 4: Reduce Exhibits & Fannin Pump Run Hours

Overview

Conversation with Facilities staff indicated that certain pumps with weekly schedules were on longer than

necessary. Seven units were identified. Run time logs should be maintained.

Measure

Program to be off unless required:

- PP2 (EH ChW): Reprogram so that pump cannot operate unless the “chilled water available”

variable is in effect.

- PP4 (EH Bsmt Pre-heat): Disable if no call for unoccupied heating in zones served by the 3

AHU’s.

- P-lag lobby (EH Heat): Disable this back-up pump unless lead pump fails.

- P4 Add (EH Heat): Disable this 3-way valve pump if HCV<5%.

- DHW P (EH): Schedule to be off from midnight until 6:00am

- DHW St P (EH DHW): Schedule to be off from midnight until 5:30am

- Pond Pumps: Duty cycle (on 3 hours, off one hour) if OAT > 3C.


Completion date Feb 8 2012











Measure Maintenance


properly is :

the Annual and Weekly schedules should be checked in the DDC system;

after a statutory holiday, runtime logs for pump commands should be compared to the intended

schedules.

On a regular basis going forward, a Building Operator should review the unit status run times to ensure

that pump is not on too long.

3.5 Measure 5: Reduce Security 5 kW Resistance Warm-up

Overview

Measure

Reprogram such that heating mode is reset at start-up. Ensure that trend log and electric heat runtime log

remain active.




Completion date Oct 15 2012








Measure Maintenance

The recommended method for verifying that this measure is implemented properly is code review and

review of DDC log 10TL24, and review of backup heat runtime log during cool weather.



3.6 Measure 6: F10 W Corridor MAT Decoupled from 3N RA

Overview

The west corridor AHU was found to control to an RTS not located within its zone. On Dec 13, 2011, we

put the exterior corridor's SAT on OAT reset as a stopgap measure.

The trend indicates an average OA temperature of 3.8C

Average MAT before 16.5

Average MAT after 20

Measure

The permanent solution involves the installation of the DDC RT sensor within the corridors.

Site review illustrated how measure was verified:

Completion date Dec 13 2011










Measure Maintenance

Periodic review of trend logs of OAT, MAT, MAD, HCV and RT.

3.7 Measure 7: Repair AH2 Occupancy Sensor

Overview

Occupancy sensors were found to be sensing occupancy continuously. Digital inputs were incorrectly

"inverted" to normally closed. This defeated the pre-existing strategy that called for VFD to slow to 50%

when no one is present.

Measure

Inputs 10in 27 and 10in28 were corrected on Dec. 14, 2011 to reduce the amount of dry air being

admitted to the building Cold weather. This was done to reduce instances of ASHRAE AA alarms.

Program and trend review illustrated that the measure was verified:

Completion date Nov 16 2011









Measure Maintenance

The recommended method for verifying that this measure is implemented properly is by periodic review

of trend log 7tl29 to ensure that the fan speed drops to 50% on a regular basis.



3.8 Measure 8 : Reduce Integral on SF4 (7con17)

Overview

Review of trend log 7tl24 revealed that the cooling demand controller had integral windup (and over-

reaction once fan started in the morning) causing low SAT at startup and over-cooling (which had to be

heated later).

Measure

The software controller was tuned in November 2011 to reduce the amount of dry economizer air, and

instances of ASHRAE AA alarms.

Please see separate PDF files of graphs and charts that illustrate evidence of how measure was verified.






maintenance





Measure Maintenance

Periodic review of trend log 7tl24 to verify that AHU4 MAD is not opening in cool weather start-up,

only to cause heating later in the morning.



3.9 Measure 9: DDC Control AH5

Overview

All of the heat delivery associated with this unit is pneumatically controlled outside of the DDC system.

If any of the pneumatic zone reheat sensors or valves are either set too high, or an HCV has failed open,

the Space average temperature and RAT will affect the system control.




SF-5 (AHU5) has DDC control of the fan and MAD. There is no heating coil on AHU5, only 6 zone

reheat coils:

1. Cafe

2. Shop

3. Clifford Carl Hall (in hallway by main wash rooms)

4. Pam’s office

5. Conference room next to Pam's office (this stat also controls the temperature for Tanya's space so

she is either too hot or too cold depending on how busy the conference room is).

6. John's cubicle.

There are three zone DDC temperature sensors:

MUS SF5-TEA-ROOM 7in59. Is in behind drinks fridge in cafeteria. This RT should be moved

to. Pillar inside cafeteria.

MUS-SF5-GIFT-SHOP-RT 7in27. Is next to entrance of gift shop off of Cliff Carl Hall.

MUS-SF5-ORIENT-RT 7in36 is next to security booth entrance inside Cliff Carl Hall. All points

where verified correct input points.

Cold weather review revealed that AHU5 was at 100% outside air and cooling coil was 100% open (there

was no chilled water at the time) - the system was trying to cool the SAT while the pneumatic terminals

were heating. The Property Management and Operations manager's office is fed from a 7" x 15 re-heat

coil in Boiler room. The Reheat coil was unable to meet the demand of the space due to the low SAT

(unnecessary cooling).

Control for AHU5 SAT had been in manual but was released to auto and based on both space temperature

and OAT.

If any of the RT's, MAT, RAT, SAT, OAT and C02 are out of calibration, the SAT will be inappropriate,

affecting the comfort in the spaces and the ability for the zone reheat's to heat the SA .



Measure

DDC control of heat delivery in areas served by SF5. The following is suggested:

1. Relocate café room temp sensor for better sensing

2. Install new riser conduit from Panel 16 enclosure to mezzanine admin area

3. Install new room temp sensors in 3 offices (Pam, John and Tanya)

4. Install room temp sensor with override pushbutton in mezzanine conference room

5. Install CO2 sensor in conference room for demand controlled ventilation

6. Take DDC control of 6 existing heating coil control valves using electronic to pneumatic

transducers

7. Install supply air temp sensors downstream of heating coils

8. System programming and Graphics updates

9. Create trend logs of all RT’s, HCV’s, MAD, CCV, modes, etc.

10. Commissioning and testing of new points and software.


Completion date Aug 20 2012









Measure Maintenance

The recommended method for verifying that this measure is implemented properly is periodic trend

review to verify that

simultaneous heating and cooling are minimized

unoccupied setbacks are being achieved.



3.10 Measure 10: Raise 2N & 3N Gallery RT-SP from 20 to 21C

Overview

Half of the Exhibit Hall gallery area is humidified, dehumidified, reheated and controlled to ASHRAE

AA environmental standards (50% RH +/- 5%).

The RT set point had been 20C. This resulted in high cooling and dehumidifying loads throughout the

year for these low heat loss zones, and a great deal of poorly conditioned air was proven to infiltrate these

ASHRAE AA galleries.

Lobby RH sensor Calibration Dec 1 2011:

3rd

floor by elevator

39.6 RH hand held

39.0 RH DDC

1st floor by NG shop and escalator

38.8 RH Hand held

39.5 RH DDC

Measure

A change to the RTSP for 2N and 3N was made Dec 2011 (20 to 21C), which reduces need for cooling

At the same time, the setpoints for the entrance lobby, 2nd

floor and 3rd

floors only, were changed to 21.0

°C. Most of them had been set to 21.5 or 22 °C.

This should reduce the gallery air handlers having to both humidify and cool simultaneously during times

of dry air infiltration.

It should also reduce the need for electric heat in the lobby.

ZONE WAS AFTER DEC 6 11

2S 21.5 21

2N 20 21

3S 22 21

3N 20 21

2 GIFT 20 21

LOBBY 22 21


Completion date Dec 7 2011










Measure Maintenance

The recommended method for verifying that this measure is persisting is review of RT trend logs, and

discussion with Property Management and Operations.

3.11 Measure 11: Put Cool ‘Stat on 2nd East Electric Rm Fan

Overview

The transfer fan that cools the east electrical room on the 2nd

floor was sending well-conditioned (near

50% RH) air into the east corridor continuously. This aggravated the serious problem of condensation on

the large expanses of single pane glass, while adding to the load on AHU9 (2N).

Measure

A cooling t’stat was added in March 2012 to cycle the fan only when needed.


Completion date Mar 15 2012









Measure Maintenance

Periodic site review of t’stat function and set point.



3.12 Measure 12: Tune Gift HCV & MAD Controller

Overview

The Gift shop AHU has both supply and return fans totaling 8 HP. The unit was programmed such that

free cooling and heating frequently occurred at the same time (see below).

Measure

Reprogram these predominantly exterior zones:

SAT_SP = (18-(0.25*OAT))+( RTSP - HotZoneAVG·RT ) * 2.25

Limit: 13C to 30C

MAT-SP = (SAT-SP – 1).

Use one simple controller to eliminate simultaneous heating and cooling. Controller 0 to 49= HVC at min

OAD; 50 to 100= economizer, then mechanical cooling (if it exists).




Completion date Oct 15 2012





maintenance





Measure Maintenance

Periodic review of trend logs for Opt Start input, SAT_SP, HCV and damper positions, and verify

operation is in accordance with sequence intent.

3.13 Measure 13: Better Control Exhibits Reheat

Overview

Most Exhibit Hall perimeter radiation systems and reheat coils are not under the control of the building

DDC system. This applies to 23 HCVs.




Measure

DDC conversion of

SF3 coils (6 largest coils out 8),

SF1 coils (7),

perim rad HCV (2)

= 15 HCV EPTs and 10 RTS






maintenance







Measure Maintenance


properly is to site verify HCVs stroking and full closure at 0%, and review trend logs for good control

and operation as per design intent.

3.14 Measure 14: Use SF-8 & 11 Humidifiers

Overview

The trend graph below indicates that the new electric steam humidifiers in 3N (111 kW) are

unintentionally maintaining excellent conditions in 3S. 2N humidity is also well maintained.

It has been determined that over-pressure in the old south galleries adds humidification loads to the new

galleries.

The old galleries have passive (wetted media) humidifiers that have been decommissioned, and which

could take some of the unintended load of the electric humidifiers.



Measure

Re-Cx SF8 and 11 wetted media humidifiers.

Use pulse control of city water control valve to cycle full open for 20 seconds and off for 180 seconds on

a call for humidity.







maintenance





Measure Maintenance

The recommended method for verifying that this measure is implemented properly is periodic review of

the 2N and 3N relative humidity trends, and site review of the old wetted media humidifiers operation.

3.15 Measure 15: Retrofits 15,16,17 –

Reductions on Existing Speed Drives

Overview

AHUs 4,8,11 and 12B had pre-existing adjustable speed drives (ASDs). It was determined that average

speeds could be marginally reduced.

Measure

AHUs

4 : Reduce from 77% to 72%


11: Reduce from 60% to 55%

12B (RF only): Reduced from 75% to 60%.








Non-energy impacts Improved artefact preservation &

maintenance





Measure Maintenance


the fan speed trend logs.



3.16 Measure 16: Retrofit 18 - E+ Boiler HSWT-SP

Overview

The current SWT setpoint is reset based on OAT as follows:

OAT Setpoint

0 82

20 25

BUT this limited to a minimum value of 50°C (the remark in the code indicates that this was added due to

AHU-9’s reheat requirements). As such, there are potential savings in dropping this limiting factor or

dynamically changing it based on AHU-9’s HCV position (or others).

50C = 122F min HSWT

GPM is very high with this system, and TD is low.

Reduced water temperatures should result in reduced parasitic heat loss throughout all 3 buildings.

Measure

Reduce 82C to 76C; Pole HCV's and add demand influence to the OA reset strategy. Pay special

attention to AH9 reheat in summer.

If OAT>16, and AHU9 reheat = 0, then boiler & pumps off.


Completion date Sep 15, 2012





maintenance





Measure Maintenance


HSWT trends and boiler Pulse meter.



3.17 Measure 17: Retrofit 19, 20, 21 – New Speed Drives

Overview

AHUs 4,8,11 and 12B had pre-existing adjustable speed drives (ASDs). It was determined that average

speeds could be marginally reduced.

Measure

AHUs



EF-WR: Reduce from 100% to 60%

SF Entrance: Reduced from 100% to 83%.


Completion date Oct 15, 2012 (increased Jan 2013)




Non-energy impacts Improved artefact preservation,

maintenance





Measure Maintenance


the fan speed trend logs.



3.18 Measure 18: Retrofit 22 - New AC Unit for AV Rm

Overview

The AV Area is a small portion of the basement that served by AHU-1 in Rm 026. Average RT is always

high due to A/V internal load

The Wood Shop is also on AH1, but is always cold – due to the AH free cooling required for the AV area.

Measure

Provide a new 2 ton split cassette heat pump.


Completion date Sep 15 2012


Projected energy and cost savings 14900 kWh and -2 kW, or $20



maintenance







Measure Maintenance


the SF2 runtime log.

3.19 Measure 19: Retrofit 23 -Allow SF8 MAD to Open Past 50%

Overview

SF8 OAD has been limited to 50% opening since the removal of SF-9. Plant chiller (not on RBCM meter)

likely has to provide more cooling as a result.

Measure

Reprogram OAD to allow full opening in free cooling.







maintenance





Measure Maintenance


the SF8 MAD and MAT trends during mild weather.



3.20 Measure 20: Retrofit 24 - Allow Ch-12 on at Lower OAT

Overview

When Ch12 was locked out in cool (dry) weather, the economizer brought in dry air and caused

humidifier to work at max. With chiller enabled during a test, the control system chose humid RA for net

energy savings.

Measure

Allow the chiller to run down to design winter conditions. This measure was implemented Nov 16, 2011

in support of the gallery’s ASHRAE AA environmental requirements.







maintenance





Measure Maintenance


the chiller and OAD trends during cold weather and 3TL40/41.



3.21 Measure 21: Retrofit 25 - Summer Purge for AH1-5

Overview

Use free cooling form cool outdoor air on warm summer nights. Central plant chiller savings will not

appear on the RBCM Hydro meters.

Measure

Run the AHUs in warm areas

Pre-cool or Purge mode is provided on normally occupied days during early morning (typically 3:00 –

6:00 AM) when space temperature exceeds 23°C and outdoor air temperature is < 19°C. Pre-cool is also

limited to operation only from May 1 to Oct 1. Warm-up mode is disabled whenever purge mode is

executed. Pre-cool fan is cycled off if RTavg < 22C.

Pre-cool for fans with VFDs to be at 55% speed to benefit from fan law savings

EF's to also be enabled at low speed.

Create runtime log for purge mode.


Completion date Cancelled due to cost

Implementation cost $XXXX

Projected energy and cost savings

Non-energy impacts



Measure Maintenance

The recommended method for verifying that this measure is periodic review of AHU and mode runtime

logs during hot summer. Ensure that mode does not run in cool weather.



3.22 Measure 22: Retrofit 26 -Reduce Fannin WR EF9 Run Hours

Overview

The Fannin fan unit that presently has DDC enable is EF8 (0.33hp) which is erroneously labeled

“washrooms”. The fan that actually serves the washrooms is EF-9 which is substantially larger (3 hp).

This unit should be connected through the DDC to go off overnight on a weekly schedule.

Measure

Provide a DDC relay and current transformer.






Non-energy impacts Improved artefact preservation





Measure Maintenance


the EF9 runtime log.



3.23 Measure 23: Retrofit 27 - General Maintenance

Overview & Recommendations

UNIT LOCATION RECOMMENDATION

AH1 EH026 Dampers require cleaning & lubrication

MAT single point sensors reloation/replacement recommended



Heating & cooling coils need cleaning






EH026 MAT single point sensors reloation/replacement recommended

AH7 EH Bsmt Dampers require cleaning & lubrication

SF8 M200 Dampers require cleaning & lubrication

Intake cleaning recommended

SF11 M300 Dampers require cleaning & lubrication


Fannin Bsmt Dampers require cleaning & lubrication

Adjust damper linkage

Reheat coil requires cleaning


Archives Roof Dampers require cleaning & lubrication





Completion date July 20 2012





maintenance





Measure Maintenance

The recommended method for verifying that this measure is implemented properly is site and trend log

review.



4.0 Updated Building Documentation

Building documentation in which updates were made based upon the optimization activities include, but

arenot limited to:

Facility drawings: Avalon provided as-built record drawings for Exhibit Hall reheat coils, AHU zoning,

and for Fannin system schematics. These were used to produce the DDC Graphics that are now in place

for the complex:

• Heating and chilled water hydronics

• AHU5

• Lobby AH1

• AH8

• AH9

• AH 12a & b

• Gift Shop

• Cor HP1 & 2

• Wet Lab

No changes were made to the O&M manuals.

Sequences of operation were provided to the Facilities Dept.and reflect changes or additions to control

strategies and sequences of operation.

Lists of remaining issues were compiled and presented to the RBCM at the Training Session.



ATTACHMENT A: Implementation Summary Table

[See Finding Workbook’s “Implementation Summary Table” tab. Select and paste table below and modify as needed.]

# Measure

Estimated Annual Electric Usage

Savings (kWh)


Savings ($)

Estimated

Annual Electric Deman

d Saving

s ($)

Estimated Annual

Gas Savings

(GJ)

Estimated Annual

Gas Savings

($)

Estimated Annual

Total Savings

($)

Estimate Implementation

Cost ($)

Simple Payback (years)

Measure life

(years) NPV ($)

IRR (%)

Description of Finding

Implementer

Recommendations for

Implementation

Recommended Evidence of

Implementation Method

Implement without

incentives as part of <2 year simple

payback bundle? (Y or N)

1 Add line of code requiring chiller status to allow pump to run

161 $12 $0 0 $0 $12 $50 4.1 5.0 $ 6

24% Archives Bldg ChW pumps was sometimes on when chiller was off.

DDC contractor

define scope; obtain quote; approve implementation; review

review of code and run time log

Y

2 Convert larger pneu zones to DDC: stacks (6 coils), and Coil 18, 2 coils in public area = 9 HCV EPTs and 9 RTS

16,800 $538 $0 0 $0 $538 $9,550 17.8 5.0 $ (7,088) 6% Most perimeter radiation systems and reheat coils are not under the control of the building DDC system.Simultaneous pnuematic heating and AHU chiller or free cooling can occur. SAT set point set according to ~ RTavg, can cause unnecessary cooling during heating season

DDC contractor


review of new points, code and trend logs

Y

3 Reduce weekly and annual schedules where possible

88,161 $6,636 $0 0 $0 $6,636 $700 0.1 5.0 $ 29,692 948% Units listed in doc file are running for longer periods that required.

DDC contractor


Review of code and run time logs

Y

4 Reduce weekly and annual schedules where possible

8,448 $636 $0 0 $0 $636 $100 0.2 5.0 $ 2,812

636% Units listed in doc file are running for longer periods that required.

DDC contractor



Y

5 reset heating mode at start-up (keep resist ht off)

760 $57 $0 0 $0 $57 $300 5.2 5.0 $ (38)

19% HP being off at night causes resistance heat to come on each morning

DDC contractor



Y

6 put a RTS in the west corridor, and control heating valve accordingly

22,583 $723 $0 0 $0 $723 $0 0.0 5.0 The west corridor AHU was found to control to an RTS not located withing its zone

DDC contractor


Site review & trend review

Y



# Measure


Savings (kWh)


Savings ($)

Estimated


d Saving

s ($)

Estimated Annual

Gas Savings

(GJ)

Estimated Annual

Gas Savings

($)

Estimated Annual

Total Savings

($)


Cost ($)


Measure life

(years) NPV ($)

IRR (%)


Implementer

Recommendations for

Implementation



Implement without



7 Set sensor switches properly

608 $46 $0 0 $0 $46 $0 0.0 5.0 Occ sensor intended to reduce fan speed was not hardware configured properly

DDC contractor


VFD trend review

Y

8 Tune controller (done Nov 2011)

3,000 $96 $0 0 $0 $96 $50 0.5 5.0 $ 390

192% Integral windup while AHU off at night was causing low SAT at startup and over-cooling

DDC contractor


MAD and SAT trend review

Y

9 Take control of non-DDC heating

68,282 $2,350 $0 0 $0 $2,350 $3,500 1.5 5.0 $ 7,261

67% SAT-SP found to be in manual - 15 in warm weather; 17 on Dec 1st; When released on Dec 7th, SAT varied between 14 and 19 C

DDC contractor



Y

10 Raise RT set point (done)

3,679 $277 $0 0 $0 $277 $50 0.2 5.0 $ 1,218

554% Two large high cooling galleries had Rm Temp set points of 20C

DDC contractor


Review of RT-SP

Y

11 Put cooling stat on Transfer Fan

1,089 $76 $0 0 $0 $76 $150 2.0 5.0 $ 199

51% Elect room transfer fan was on 24/7 (increasing condensation on east hall windows)

DDC contractor


Site observation Y

12 Use one simple controller to eliminate simultaneous heating and cooling. Controller 0 to 49= HVC at min OAD; 50 to 100= economizer, then mechanical cooling (if it exists).

23,923 $766 $0 0 $0 $766 $2,000 2.6 5.0 $ 1,506

38% AHU was found to heat and cool at the same time

DDC contractor


trend review Y

13 Convert SF5 coils (6), SF1 coils (7), preim rad HCV (2) = 15 HCV EPTs and 10 RTS

84,000 $2,688 $0 0 $0 $2,688 $16,800

6.3 5.0 $ (4,490)

16% Most perimeter radiation systems and reheat coils are not under the control of the building DDC system.Simultaneous pnuematic heating and AHU chiller or free cooling can occur. SAT set point set according to ~ RTavg, can cause unnecessary cooling during heating season

DDC contractor



Y



# Measure


Savings (kWh)


Savings ($)

Estimated


d Saving

s ($)

Estimated Annual

Gas Savings

(GJ)

Estimated Annual

Gas Savings

($)

Estimated Annual

Total Savings

($)


Cost ($)


Measure life

(years) NPV ($)

IRR (%)


Implementer

Recommendations for

Implementation



Implement without



14 Re-Cx 2 passive humidifiers in AHUs

10,642 $917 $116 0 $0 $1,033 $100 0.1 5.0 $ 4,632 1033%

Passive drip humidifiers had been decommissioned, causing increased load on electric humidifiers

DDC contractor


Site review Y

15 Reduce RF speed (done)

2,919 $220 $0 0 $0 $220 $50 0.2 5.0 $ 956

439% High RF speed was increasing the short circuiting of highly conditioned S/A into return air grill (before it could impact the space)

DDC contractor


VFD trend review

Y

16 Reduce AH4 speed by avg 5%

2,923 $220 $0 0 $0 $220 $100 0.5 5.0 $ 908

220% CFM per sq ft is high. DDC contractor


VFD trend review

Y

17 Reduce AH speeds by avg 5%

12,379 $700 $0 0 $0 $700 $400 0.6 5.0 $ 2,806 175% Highly variable load in zone with somewhat arbitrary min speed s (80 and 60%).

DDC contractor


VFD trend review

Y

18 Lower reset schedule; allow cooler summer SWT; turn boiler & pumps off if OAT high and AH9 does not need reheat

44,800 $1,542 $0 0 $0 $1,542 $200 0.1 5.0 $ 6,860 771% Very high flow with low TD. HSWT high, and reset schedule limited to 50C in summer

DDC contractor


Review of code and trends

Y

19 Install VFD 18,326 $1,379 $0 0 $0 $1,379 $5,750 4.2 5.0 $ 568

24% Simple unoccupied single zone system with high perimeter loads runs at constant speed

DDC contractor



Y

20 Install VFD (done) 18,821 $1,417 $0 0 $0 $1,417 $1,750 1.2 5.0 $ 4,738 81% Very high volume EF brings extra unconditioned air that adds heat, cool, dehum and humidification loads - particularly to ASHRAE areas

DDC contractor



Y

21 Install VFD (done) 54,741 $8,477 $0 0 $0 $8,477 $11,000

1.3 5.0 $ 27,822 77% AHU SF was much higher than design and RF volume. It was pressurizing lobby and adding heat, cool, dehum and humidification loads - particularly to ASHRAE areas

DDC contractor



Y



# Measure


Savings (kWh)


Savings ($)

Estimated


d Saving

s ($)

Estimated Annual

Gas Savings

(GJ)

Estimated Annual

Gas Savings

($)

Estimated Annual

Total Savings

($)


Cost ($)


Measure life

(years) NPV ($)

IRR (%)


Implementer

Recommendations for

Implementation



Implement without



22 Install smal AC unit to allow warmer AHU MATs

14,090 $253 -$232 0 $0 $20 $7,500 369.2 10.0 $ (7,327)

0% Small AV room causes large AHU to cool when the rest of the basement does not require it

DDC contractor


Review install, AHU code and trends

Y

23 Release OAD to open fully

0 $0 $0 0 $0 $0 $200 5.0 $ (200)

Free cooling capacity if AHU is limited (as result of half served area being removed)

DDC contractor


trend review Y

24 Re-program: If OA dew point < 3C, Close OAD and cool with chiller when building occupied (9:45 to 17:15)

1,808 $136 $0 0 $0 $136 $50 0.4 5.0 $ 573

272% When Ch12 locked out in cool weather, econo brought in dry air and caused humidifier to work at max.

DDC contractor


Trend & runtime review

Y

25 free cool during nite during hot weather

0 $0 $0 0 $0 $0 0 0 )

26 add DDC relay and weekly schedule

11,000 $828 $0 0 $0 $828 $700 0.8 5.0 $ 3,092 118% Fan found to run 24/7 DDC contractor



Y

27 refurbish, clean and lube

16,321 $562 $0 0 $0 $562 $7,450 13.3 2.0 $ (6,375)

8% Dirty coils, stuck dampers, bad seals, lonkages not set

Mech contractor


Site review and trend review

Y

530,264 $ 31,550 $ (116) 0 $ -

$ 31,434

$ 68,500 2.2



ATTACHMENT B: Training Outline

Training Outline

The Commissioning Provider (C.Op Provider) is responsible for customizing the outline for the training

and developing the training materials. Before preparing the training outline and materials, the C.Op

Provider should assess the related level of knowledge of the building operators, to set up the training

accordingly. For reference, the Program provides the following sample outline for the training:

Background on the energy use of this particular building

o Present Energy Utilization Index

o Describe Operating Schedules and Owner’s operating requirements

RCx investigation process used in this building

o Describe the methods used to identify problems and deficiencies

o Review the Master List of Findings Summary

Implementation process in this building

o Describe the measures that were implemented and by whom

o Walk around the building to look at any physical changes or step through the new control

sequences at the operator workstation

o Provide as many details about implementation as necessary to describe what was done

o Describe improved performance that these measures will create (show trends if available)

O&M requirements

o Describe the O&M requirements needed to keep these improvements working

o Describe how the staff can be aware of energy efficiency opportunities and begin looking

for additional savings potential

The C.Op Provider should follow the outline to prepare materials, as necessary, to hand out at the training

session.



ATTACHMENT C: Training Completion Form

Program Use Only Project ID

Facility Information

Company

Name

THE ROYAL BC

MUSEUM

CORPORATION

Building Name(s)

Exhibit Hall

Fannin Curatorial Tower

Archives

Facility

Address 675 BELLEVILLE

STREET City VICTORIA Province BC

Postal

Code V8W 9W2

Mailing

Address City Province

Postal

Code

Training Details

Location RBCM Date Jan 31 2013

Commissioning

Provider/Trainer Bob Landell

Materials Attached

Agenda

Materials used for training

List of individuals who attended

COMMISSIONING PROVIDER SIGNATURE

By signing this Training Completion Form, I verify that this training took place with the listed attendees.

Commissioning Provider (print name): Bob Landell

Signature: Date: Jan 31 2013

FACSIMILE/SCANNED SIGNATURES: Facsimile transmission of any signed original document, and the retransmission of

any signed facsimile transmission, shall be the same as delivery of the original signed document. Scanned original documents

transmitted to BC Hydro as an attachment via electronic mail shall be the same as delivery of the original signed document. At

the request of BC Hydro, C.Op Provider shall confirm documents with a facsimile transmitted signature or a scanned signature

by providing an original document.



Targeted Documentation

O & M Manual

O & M Manual updated Describe updates below and attach copies of new or

amended portions

O & M Manual not updated Province reasons below

Building has no O & M Manual

Building Plans (“as-builts”)

Building Plans updated Describe below

Wiring diagrams updated Describe below

No plans or diagrams updated Describe below

The DDC system had very limited graphics prior to the recent DDC upgrades. Graphics are now in place for the

complex heating and chilled water hydronics, AHU5, lobby AH1, AH8, AH9, AH 12a & b, Gift Shop, Cor HP1 &

2, Wet Lab. This is a highly valuable upgrade for RBCM operations.

EMS Programming

New sequences of operation on file Specify location of file and attach copy

Printed screenshots on file Specify location of file and attach copy

Optional cost is pending approval for update of complicated ASHRAE AA temp, dew point and RH programming.

General C.Op Sequences and verification trends have been submitted to RBCM (RBCM Con Op DDC Software Seq

Op.docx). Tanya Duce maintains the records.

Equipment Manuals

Manuals for new equipment are on file Describe below (attach copy if applicable)

N/A



Checklist of subjects discussed at training

Explain investigation process and how measures were identified

Describe implemented measures, and how they are reducing energy usage

Building walkthrough to show implemented measures

Describe methods for monitoring and maintaining optimum system performance related to implemented

measures

Describe scenarios where system setting changes would be required, and how to maintain optimum

energy efficiency, e.g., seasonal-based manual adjustments to setpoints.

List of Individuals Who Attended

Name Title Building (address or name) Contact information (e-mail

and/or phone number)

Tanya Duce Facilities Operator RBCM 250 387 3007

Cameron Holt Maint Personnel RBCM 250 893 1261

Steve Brame Maint Personnel RBCM 250 893 2192

View PDF - Royal BC Museum

Documents

Transcript of View PDF - Royal BC Museum