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File name = 302340332.xls, Page 2 of 11 of Sheet Chilled Water System Flow est Printed on 01!2"!201# at 1$%2&%40

Chilled Water System Flow Test

Chilled Water System

Flow test in di'erent o(erating modes

Purpose:

!ue to low resitan"e to flow in one position relati#e to the other. This "oul! lea! to

tune or re$uiring larger proportional ban!s than might otherwise be ne"essar%.

!ata an! assist with this assessment.This test will !o"ument pump flow with the #al#es in !ifferent positions to assess the

a"tual impa"t of the missing balan"e #al#es on s%stem "ontrol performan"e. &ump

flow. This information will be "ross "he"'e! against the turbine flow meters in the

s%stem.

the a"tual hea! re$uire! to !eli#er !esign flow. &re#ious "ommissioning efforts

The results of this test "an be use! to i!entif% if an% a!!itional opportunities e(ist.

Instructions:

it on the test form in a!!ition to %our initials an! the !ate an! time.

F)n*tional esting+)ide

The purpose of this test is to !o"ument the &)* "hille! water s%stem pump

!ifferent operating mo!es. The s%stem is a "onstant #olume s%stem with i"e storage.

There are se#eral three wa% #al#es in the s%stem an! the% !o not ha#e balan"e #al#es

the b%pass. This means that the flow "hara"teristi" of the #al#e "oul! be #er% non+

temperature "ontrol problems as the #al#e trie! to mo!ulate, ma'ing loops !iffi"ult

-/1 temperature "ontrol tren! !ata is also being "olle"te! to supplement the pump

!ifferentail pressure rea!ings will be ta'en an! use! to enter the pump "ur#es to

The test will also establish the s%stem "ur#e for the pumping s%stem. This will allow

mat"h between the pump "apa"it% with !is"harge #al#e full% open to be assesse!

establishe! thet one pump "oul! pro#i!e! the s%stems flow re$uirements e#en though

the original !esign intent was for two pumps to run. owe#er, the hea! "apa"it% of

pumps 110 ft.w.". relati#e to the estimate! hea! re$uirement for the buil!ing 60+

ft.w.". in!i"ates that there ma% be room for further optimiation #ia an impeller

nitial ea"h step if the item is "omplete! satisfa"toril% or the test item asso"iate!

the step met the test re$uirements an! passe!. f the item is not satisfa"tor% or

step fails, re"or! an in the appropriate bo( instea! of %our initials. o"ument

reason for failing in the "omments se"tion as a numbere! note an! in"lu!e the note

ne(t to the on the test form. f the test step has !ata asso"iate! with it,


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Equipment Required:

1. igital pressure gauge or a reasonabl% a""urate gauge on the pump.

2 -n amprobe or '7 meter !esirable but not man!itor%

Acceptance Criteria:

#al#es, thus there is no a""eptan"e "riteria. owe#er, if balan"e #al#es pro#e to be

Precations:

1. )(er"ise "are when "hanging operating mo!es if a "hiller is running.

2.

installe! prior to performing a shut off test.

3. -#oi! su!!en flow "hanges to minimie the potential for water hammer.

4.

amp rea!ings.

5.

References:

1. &ump "ur#es for the pumps to be teste!.

2. The s%stem !iagram !e#elope! in a pre#oius &)* training "lass.

3. The ell an! ossett %!roni" )ngineering manal.

4.

Requirement Data Completed

Include units

Prerequisites:

1. auges an! #al#es are in pla"e at the pump gauge

taps. t is important that the gauges are arrange!

to measure pressure at the same lo"ation use! b%

!ata.

2.

3. The s%stem "an be operate!.

4. :omeone who is 'nowle!able in operating the *

s%stem is a#ailable to "omman! #al#es to !ifferent

The test is being run for the purpose of gathering !ata to assess the nee! for

!esirable, then this test "an be run subse$uent to their installation to #erif% that

ha#e been a!;uste! properl%. n that "ase, the a""eptan"e "riteria woul! be that the

s%stem e(hibit no signifi"ant flow #ariation as the "ontrol #al#es mo!ulate full

our

&ro"esses? The% @ust 7or' Together, Aanuar%+ebruar% 2002= /sing :%stem

*ur#es to )nhan"e &ump &erforman"e= @ar"h+-pril 2002= &umps an! >our

&ro"esses? 7hen The% 7onBt 7or' Together= @a%+Aune 2002

Initials, Dateand Time

the manufa"turer to !e#elop the pump

performan"e

The test will not interfere with buil!ing

operations.


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!ifferent positions

5. The s%stem "an be operate!.


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File name = 302340332.xls, Page $ of 11 of Sheet Chilled Water System Flow est Printed on 01!2"!201# at 1$%2&%40


Preparation:

1. Cbtain pump "ur#es for the *7 pump.

2. *oor!inate as ne"essar% with the tra!es.

3. o"ument the as foun! status of the s%stem

*7 &ump 1

*7 &ump 2

-/ 1 status

-/ 1 *7 #al#e position

-/ 2 status

-/2 *7 #al#e position

*hiller status

*hiller entering water temperature

*hiller lea#ing water temperature

:%stem mo!e normal or i"e ma'ing"e storage tan' 1 status

"e storage tan' 2 status

"e storage tan' #al#e position

"e storage entering temperature

"e storage lea#ing temperature

5. o"ument the pump name plate !ata.

*7 &ump 1 *7 &ump 2

@a'e

@o!el

:erial Number

low

ea!

mpeller :ie

@otor @a'e

@otor @o!el

@otor &

@otor :pee!


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:er#i"e a"tor

Cther

Cther

Procedure:

1. &osition the s%temBs "ontrol #al#es as follows?

-/1 full flow to the "oil

-/ 2 full flow to the "oil

"e storage #al#e b%passing the tan's

2. 7ith one pump running normal operating mo!e

asso"iate! with the rea!ing= i.e. psi or ft.w.".

&ump that is un!er test

&ressure ahea! of the strainer

&ump su"tion pressure:trainer pressure !rop the !ifferen"e

between the two rea!ing ;ust ta'en

3. f the pressure !rop through the strainer e("ee!s

the strainer. -fter the strainer is "lean, pro"ee!

with the following.

&ump !is"harge pressure

&ump amps all phases

&ump #olts all phases&ump '7

4. *lose the -/ 2 *7 #al#e

5. o"ument the following

&ump su"tion pressure



&ump #olts all phases

&ump '7

6. @o!ulate the -/1 *7 #al#e to 50D stro'e

. o"ument the following





&ump '7

!o"ument the following. Note the engineering

units

3 psiE ft.w.". suspen! the test an! inspe"t an!

"lean


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File name = 302340332.xls, Page of 11 of Sheet Chilled Water System Flow est Printed on 01!2"!201# at 1$%2&%40


8. @o!ulate the -/1 *7 #al#e to full b%pass






&ump '7

10.






&ump '712. @o!ulate the i"e storage tan' #al#e to full flow

through the i"e tan's






&ump '7

14. @o!ulate the -/1 *7 #al#e to 50D stro'e






&ump '7

16. ull% open the -/1 *7 #al#e

1. o"ument the following&ump su"tion pressure




&ump '7

18. ull% open the -/2 *7 #al#e


@o!ulate the i"e storage tan' #al#e to 50D stro'e


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&ump '7

20.

sie b% briefl% "losing the !is"harge #al#e an!

an! !o"umenting the pump !ifferential pressures.

&ro"ee! as follows?

o"ument !is"harge #al#e position

:tart the se"on! pump to pre#ent a "hiller

safet% shut !own !ue to loss of flow.

!o"ument?&ump su"tion pressure


Return !is"harge #al#e to original position.

Follow up and Return to Normal:

1. Remo#e all test e$uipment.

2. Return the s%stem to the state it was operating in

at the start of the test or as re$ueste! b% the

operating staff.

3. &lot test results on the pump "ur#es to !etermine

flow rates in all operating mo!es. -ssess linearit%.

4.


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File name = 302340332.xls, Page " of 11 of Sheet Chilled Water System Flow est Printed on 01!2"!201# at 1$%2&%40


Test Completion Si&n '

Test coordinator name (print)

Si&nature, date and time

This test has been performed to the best of my ability per the requirements of theprocedure. Deviations or problems encountered have been noted at the end of the test


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Comments and Notes


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Comments and Notes

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