Appendix_E_-_Performance_Test_Procedure_for_YST_Chiller_Packages.pdf

JOHNSON CONTROLS 1

FORM 160.67-TD1 (1110)

TECHNICAL DATA Supersedes: 160.72-TD7 (1104) Form 160.67-TD1 (1110)

YST TEST PROCEDURE

FIELD PERFORMANCE TEST PROCEDURE

FOR

YST CHILLER PACKAGES

Johnson Controls, Incorporated offers to conduct a Field Performance Test for chilling systems. The test requirements may be detailed by project specifications or quoted as part of a project bid package for new equipment. In such testing, Johnson Controls’s Test Group (JCTG) will be responsible only for testing equipment manufactured by Johnson Controls and installed, as recommended by Johnson Controls.

TEST STANDARDS

Air-Conditioning & Refrigeration Institute Standard ARI 550/590 details rating, certification and testing of water chilling packages. YST Chillers >2000 tons do not fall within the certification program. However, Johnson Controls does follow ARI 550/590 guidelines in rating the chilling systems. The test procedures detailed by ARI 550/590 appendix C will be followed as closely as practical for the Field test. It should be recognized that some of the tolerances designed by ARI 550/590 may need to be relaxed due to site conditions. For instance:

• It may be difficult to obtain 3 sets of data at 5 minute intervals if the load conditions are not steady.

• Flow measurement may be difficult dependent on the device and measurement location. See Appendix A for discus-sion of tolerance adjustments based on expected accuracies.

• It may be necessary to adjust the chilled water flow rate beyond +5% if the return temperature is not at design (this may affect chiller lbs/hr/TR).

• Heat balance may exceed tolerance due to inaccuracies of site test equipment. It may be desired to average the capacities measured by chilled water and cooling water heat measurements.

• It may be difficult to control design entering condenser water temperature within 0.5°F.

• Fouling factors on site may be difficult to determine or control.

American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. standards:

• ANSI/ASHRAE 30 Method of Testing Liquid-Chilling Packages is referenced by AHRI 550/590 for flow measurement.

This standard can be used for field testing and basically describes the same test procedures as AHRI 550/590. But, this standard does not cover chiller rating guidelines.

• ANSI/ASHRAE 41.1 Standard Method for Temperature Measurement applies to temperature measurement techniques.

• ANSI/ASHRAE 41.8 Standard Methods of Measurement of Flow of Liquids in Pipes Using Orifice Flowmeters.

JOHNSON CONTROLS2

GENERAL POLICY

1) Field Test(s) shall be conducted in accordance with AHRI 550/590 Standard (latest edition in place when the chiller is ordered). All Johnson Controls Unit Performance Data (lbs/hr/ton) is based on AHRI 550/590, with all applicable tolerances. For the specified operating conditions of a project, the tolerance will typically be in the range of ± 5.0% at full-load operating conditions, with increasingly broader tolerances at reduced load conditions. Where narrower tolerances are desired, they must be clearly included in the project specifications, and accounted for in the quotation.

The quotation ratings must reflect adequate performance safety margins to account for the special tolerance. Owners or Consultants who specify narrower than AHRI 550/590 tolerance should understand that this is increasing the cost of the chiller.

2) The following test instrumentation (see also Figure 1) will be used for Johnson Controls Test Group conducted tests:

a) FLOWS: The Owner shall supply all Liquid Flow meters. The flow meters shall be of the type required to comply with ARI Standards. Refer to Appendix A for further guidance on flow measurement devices. Design and calibration data shall be made available to JCTG to allow input to JCTG’s Field Data Acquisition System. Should the Owner elect to utilize any meter other than recognized by AHRI 550/590 and ASHRAE, Johnson Controls reserves the right to either accept or reject this meter selection. In the event that Johnson Controls rejects this meter selection, Johnson Controls will enter into negotiations with the appropriate Johnson Controls and Owner representatives to determine the appropriate solution and possible tolerance increase based on meter selection and installation location. This will be driven by expected accuracy based on past experiences.

b) Temperatures: Resistance Temperature Detectors, or RTDs, shall be provided by JCTG that are National Institutes of Standards & Technology (NIST) traceable and meet the requirements of AHRI 550/590 for all water and refrig-erant measurements between the ranges of 30 to 150 Degrees Fahrenheit (special calibrations will be done for low temperature brine chillers). Temperatures above 150 Degrees Fahrenheit will be measured by Thermocouples using NIST Curves. The Owner shall supply temperature wells in all chilled/cooling piping. The wells shall accept ¼ inch OD RTDs extending to the center of the pipes. The wells shall be installed in a vertical orientation to enable filling with a liquid heat conducting material. The wells shall be installed about six pipe diameters from the exits of the chilled/cooling shell flanges to assure good fluid mixture at the point of measurement.

c) Pressures: Pressure transducers shall be provided by JCTG that are NIST traceable and meet the requirements of all AHRI 550/590 Standards. The Owner shall supply new or existing connections for evaporator and condenser refrigerant-side and water-side pressure measurements.

d) Steam Measurements: JCTG shall supply all temperature and pressure measuring instruments in accordance with above items b). and c). The Owner shall supply a temperature well capable of accepting ¼” OD RTD and a pressure connection with siphon tube at the inlet to the Steam Turbine trip and throttle valve. Steam flow rate determinations are best made using condensate return flow measurements. Refer to Figure 2 for additional measurement points typical on condensing steam turbine driven chillers.

JCTG supplied instrumentation is calibrated to NIST traceable standards at regular intervals. Speci-fications which require before and after test calibrations will incur increased test costs.

3) All data from RTDs, pressure transducers, gages, electrical measurements, and flow meters, should be collected by a high accuracy data acquisition system. When Johnson Controls is performing the test, JCTG will utilize a high accuracy Data Acquisition System which is linked to display data on a laptop PC and record on a portable printer.

The PC will update all recordings about every 10 seconds and continuously indicate all measurements as well as capacity, power consumption, and heat balance through Excel software. Upon stabilization, the printer will make a record of the test.

JOHNSON CONTROLS 3

STABILITY DEFINITION

Stability of flow shall be designed as:

A stable conditions exists when the volume of water over time (gpm) remains within 2% of the design flow rate and cycles peak to peak in no less than 1 minute.

Stability of temperature shall be designed as:

A stable condition exists when the temperature of water over time (°F/min) remains within .5°F of design temperature and moves no more than .1°F per 1 minute on average with a 20 minute span peak to peak.

This stability allows for stable readings that can provide the 10 minute window for data collection that AHRI 550/590 mandates.

4) AHRI 550/590 test procedures require that a tube side fouling factor of 0.000 be assumed if heat exchanger surfaces are cleaned just prior to test. Temperature penalty adjustments to compensate for the chiller rated scaling for both evaporator and condenser would then be performed. But, for field performance tests, the job site water treatments do not meet laboratory cleanliness, nor are the tubes completely clean by the time the test is conducted.

Recognizing that tube-side fouling will begin within hours of commercial operation, full design foul-ing will be assumed for the test. This means there will be no water temperature corrections for clean tube fouling as detailed by AHRI 550/590, which apply only to new and unused tubes in a factory or laboratory test environment.

However, should fouling at time of test be above design as measured by heat exchanger small differences Johnson Controls reserves the right to request Owner to perform tube cleaning (not in Johnson Controls scope). Pressure transmitters should be used for measurement of condenser and evaporator pressures. The saturation temperatures at the measured pressures can be used to calculate the heat exchanger small difference temperature approach. This approach temperature can be used to estimate the water side fouling condition.

If tube cleaning is requested by Johnson Controls due to excessive fouling, the preferred tube cleaning to achieve zero fouling must consist of brush cleaning followed by acid cleaning. If this is done, and performance tests are run immediately, water temperature corrections would be calculated per AHRI 550/590 to simulate a zero fouling clean tube condition.

Alternatively, if only a brush cleaning OR acid tube cleaning method is to be done (if preferred by Owner due to costs), experience has shown that a true tube condition of zero fouling is not likely. With this one-step-cleaning mode, tube-side fouling would be assumed .0001 AHRI 550/590 standard for the evaporator, and .00025 AHRI 550/590 standard for condenser water. Temperature corrections to simulate the difference (if any) between chiller rated / specified fouling and the preceding AHRI 550/590 standard values would be utilized for the test.

5) After all operating conditions are adjusted for design conditions and the chiller tested for proper refrigerant charge and all system valve settings adjusted for proper operation and positioning, a state of readiness can be declared for the Field Performance Test.

6) After declaration of the state of readiness, the system should be allowed to operate overnight, under the supervi-sion of the Owner’s site personnel, at the normal plant operations requirements. If possible, load shedding of other equipment, should be incorporated to keep the proposed test equipment as fully loaded as possible during night operations, so that on the day of the test the unit tested will require minimum stabilization to test conditions

7) On the day of the test, the test unit will have been operating overnight and the time to attain stabilized test conditions will be minimized. To attain test conditions, design flow rate will be checked and adjusted to design values. The site operators will then be requested to shed loads to maintain design entering chilled water and condenser water tem-peratures. Hopefully, these can be attained within a few hours. Three sets of readings taken at 5-minute intervals of

JOHNSON CONTROLS4

temperatures, flow and power readings will fulÞll the requirements of AHRI 550/590. Heat balance of the test runs will be checked during the test and, if within 5%, compliance with requirements of the standard will be met, the test will be concluded and a report issued. (For air and evaporatively-cooled condensers, it is impractical to measure heat rejection in a test; therefore, a heat balance cannot be calculated).

8) Part load Field Performance Tests may be requested at additional cost. Johnson Controls publishes part load curves for typical installations. Steady state conditions are sometime difficult to achieve whereby conditions maintained per the Test Engineers request should provide suitable information. Allowable tolerances as specified per ARI 550/590.

CUSTOMER/OWNER RESPONSIBILITY

The following is a list of items that the Customer/Owner must retain responsibility for successful completion of the required performance and/or sound testing. The Customer should be considered an essential part of the test team. Successful acceptance of the test will not be achieved unless the Customer is engaged and involved in supporting the test. The Customer should:

• Provide a single point of responsibility, “The Customer Representative”

• Schedule chiller availability

• Provide stable operating conditions

The Customer/Owner shall be responsible to provide the load for the test chiller, shall control the water ßows and tem-peratures to the design conditions as specified by the performance and/or sound Test Engineer.

A Johnson Controls technician shall monitor the system operating conditions for the duration of the performance and/or sound test. If the chiller operating conditions vary substantially from the stable conditions as designed above, all collec-tion of official data will cease until the required conditions can be maintained.

• Assume responsibility costs of all operating utilities during the testing Contracted testing delays or resched-ules resulting from equipment supplied by others, will be charged on per-diem basis

• Understand the implications of less than ideal testing conditions Customer should accept that less than ideal test instrumentation selection, instrumentation installation and or sys-tem stability will yield less than ideal tolerance on accuracy and some level of relaxation of the test results may be required.

• Accept the test results and report

JOHNSON CONTROLS 5

NOTES: 1) The wells shall be installed in a vertical orientation to enable fi lling with a liquid heat condensing material.

2) Refer to project specifi cations and plans for instrumentation scope of supply.

YST Performance Test Points

FIG. 1 - YST PERFORMANCE TEST POINTS

JOHNSON CONTROLS6

FIG. 2 - PIPING & INSTRUMENTATION DIAGRAM - CONDENSING STEAM TURBINESYSTEM (TYPICAL)

NOTE: The wells shall be installed in a vertical orientation to enable fi lling with a liquid heat condensing material.

Y stnio

P tseT ecna mrofre

P T S resnedno C ecafru

S

Turbine Flow Meter

Condensate Return

1' Drop Leg

JOHNSON CONTROLS 7

APPENDIX A FLOW MEASUREMENT

SCOPE

The water or brine (and steam) piping are generally not within the chiller manufacturer’s scope of supply. AHRI 550/590 in conjunction with ASHRAE 30 require flow devices meeting an accuracy of 1% or better. Although field performance testing does not fall under this factory laboratory testing standard as AHRI 550/590 defines it, we do try wherever pos-sible to adhere to this requirement to give our customers confidence in our methods. Devices meeting 1% accuracy requirement are generally full pipe flow devices, which are integral to the piping system. Unless dictated otherwise by contract, the Owner is responsible to provide and install calibrated flow measurement devices which will meet these ac-curacy requirements. These measurements are required for chilled water (or brine), condenser water and (if applicable) steam condensate flows.

Process flow measurement devices are critical in chiller performance testing, since flow is a direct factor in establishing chiller capacity, efficiency and also heat balance test validation. For steam turbine driven chillers the steam or condensate flow measurement also establishes power consumption. AHRI 550/590 and ASHRAE 30 standards on chiller performance testing require a 1% measurement accuracy (of reading at specified design point) for each flow measurement device.

INSTALLATION

All flow measurement devices are dependent upon a uniform velocity profile within the pipe. The placement of flow measurement devices within the piping system must be considered by the customer or their representative during the project design phase. Flow elements shall not be installed after control valves, or multiple elbows unless flow straighten-ing vanes are utilized. Most insertion type and differential pressure flow elements require straight pipe runs of at least 20 pipe diameters upstream and 5 downstream to operate accurately without a flow straightening bundle. Most inser-tion type and differential pressure flow elements require straight pipe runs of at least 10 pipe diameters upstream and 5 downstream to operate accurately with a flow straightening bundle This can vary based upon piping configurations and device selection. The flow device manufacturer’s recommendations must be followed for specific installation requirements.

The flow element design and calibration shall be based upon the wall thickness or I.D. of the piping in which it will be installed.

CALIBRATION ACCURACY

Flow device manufacturer accuracy claims should not be taken at face value. The accuracy needs to be based on reading at design point, not full scale. The accuracy of secondary measurement or transmission devices should also be considered. Accuracy should not be confused with repeatability. To ensure accuracy, the flow device must be calibrated to an NIST (National Institute of Standards & Technology) traceable source. For most large flow meters this will require that a weight flow calibration test be performed on the actual flow device prior to installation.

INTERFACE TO TEST EQUIPMENT

In field testing, it is best that all data be taken simultaneously by a modern data acquisition system. The signal reading should be taken as close to the flow element source as possible, and not a retransmission from other sources. The Owner shall make allowance for the Test Engineer to make the necessary connections to the process ΔP taps via block valves, or direct to the electronics primary loop for electronic flow devices. When using a differential pressure device, such as an orifice, Venturi or Pitot tube, the flow calibration report must be provided to the Test Engineer. A calibrated differential pressure transmitter and flow characteristics can then be provided with the data acquisition system. For other types of flow devices, the calibration report and details on electronic signal type shall be provided to the Test Engineer.

The electronic signal may be analog or pulse. When available current loop signals may be preferable.

PREFERRED FLOW MEASUREMENT DEVICES

Magnetic Flowtube flowmeters have been widely approved by AHRI for use in factory test facilities. Johnson Controls uses these meter types in our large tonnage test facilities and have received certification from AHRI for the facilities us-ing them. Johnson Controls has experienced very good and repeatable results using these meters. The specification for use for fluid flow measurement is defined by ASME MFC-16-2007, Measurement of Fluid Flow in Closed Conduits be Means of Electromagnetic Flowmeters. Johnson Controls prefers the use of these devices for flow measurement since there is a history through factory use and calibration that these meters deviate very little from calibration to calibration and there are no moving parts to affect future calibration. Further, these flowmeters provide very good results when properly installed on any pipe size for which there is a flowmeter available.

JOHNSON CONTROLS8

Orifice Plates are listed in AHRI 550/590 test procedures. Their specification and use for flow measurement is defined by ASHRAE 41.8 .Standard Methods of Measurement of Flow of Liquids in Pipes Using Orifice Flowmeters. Johnson Controls has no objection to using an orifice for flow measurement as the characteristics are well established and there are no moving parts to affect future calibration. However, the high pumping costs associated with an orifice plate make it practical only for temporary installation, or for projects where a test bypass loop is part of the design.

Venturi flow nozzles are listed in AHRI 550/590, with requirements defined by ASME standard MFC-3M, Measurement of Fluid Flow in Pipes Using Orifice, Nozzle and Venturi.. The Venturi is more expensive than an orifice, but has a lower pressure drop and reasonable pumping costs. For most permanent installations in large water flow lines a weight flow calibrated Venturi will provide accurate results.

Turbine flowmeters are listed in AHRI 550/590 when they are applied per the requirements of ISA standard RP31.1 .Recommended Practice Specification, Installation and Calibration of Turbine Flowmeters. Axial turbine flow meters are recommended for use in measuring small pipe sizes. Axial turbine meters are preferred for steam condensate measure-ment on steam turbine driven chillers, and can be installed temporarily.

Insertion type turbine flow meters are generally not recommended by Johnson Controls for flow measurement to determine guaranteed capacity and efficiency because of the potential uncertainties for these meters. They are very dependent on installation location, depth, proximity to turbulence, etc. and on many occasions have proven to be less than reliable for this purpose.

Other types of flowmeters are not recognized by the AHRI 550/590 standard on chiller testing. The attached chart is intended for general comparison of the various types of flow metering which are available

Important Note Should the Owner decide to use a meter with less accuracy than prescribed by AHRI 550/590, the test tolerances in capacity, power and heat balance must be relaxed by the difference in flow meter accuracy (Johnson Con-trols’s expected accuracy based on past experiences as shown on the chart minus 1% allowable AHRI 550/590 flow accuracy will be added to the AHRI chiller tolerances).

JOHNSON CONTROLS 9

Type: F = Full flow passes through device. I = Insertion type of device N = non intrusive

*Accuracy expectations are based upon proper installation per manufacturer’s recommendations and industry standard requirements. Improper instal-lation or application may cause the inaccuracies to at least double. In some cases test data has shown the inaccuracies to increase to double digit values when installation requirements are not met.

This is intended as a general information source on the typical types of flow devices which may be applied to chiller tests/plant measuremnt. There are types of flowmeters not mentioned here including mass flowmeters, coriolis flowmeters, etc. which are often not applied in large flow piping require-ments.

For further informational materials on flow devices, recommended readin: “Fundamentals of Flow Measurement” is available from the Instrument So-ciety of America (ISA) by download from their website at www.isa.org.

Liquid Flow Metering Devices *Accuracy, %

Meter Type Pros (P) & Cons (C) associated Signal type Typical Mfg Claim

Johnson Controls expectation

Magnetic

(ASME MFC-

16M) F P

Needs less straight run of piping than other devices.

High degree of accuracy when properly installed and calibrated. Very little pressure drop associated. No moving parts or pressure ports to clog.

Electronic .25 to .5 0.5

Magnetic C Full pipe diameter device.

Orifice Plate

(ASHRAE

41.8) F P AHRI/ASHRAE accepted. Established Theory. No mov-ing parts. High accuracy when properly installed.

∆P 1 1

C High ∆P equates to high pumping costs. System debris may clog pressure ports.

Venturi

(ASME MFC-

3M) F P

AHRI/ASME accepted. Established theory. No moving parts. Lower pumping costs than orifice. High accuracy when weight flow calibrated and properly installed. ∆P .5 to 1 1

Venturi C System debris may clog pressure ports.

Turbine Axial (ISA RP31.1) F P AHRI/ISA accepted. Linear output provides good turn down.

Electronic 1 1

Axial turbine C Moving parts makes long reliability questionnable. Not feasiblefor large diameter piping.

Turbine Insertion I P Can be “hot tapped”. Lower initial costs.

Electronic 1 15 Insertion Turbine C

Moving parts that are prone to reliability issues. Inser-tion devices are generally subject to installation meth-ods, location, velocity profile changes, etc.

Ultrasonic, Time Transit N P

Portable strap on device. Can be used when customer meters do not meet minimum requirements, there are no site meters or as a second meter.

Electronic 1 to 2 2.5 Ultrasonic, Time Transit C Installation reqiures fully developed flow profiles. Sys-tem foaming/aeration will negatively affect funtionality of meter, may cause device not to function.

Vortex Shed-ding & Target I P Can be “hot tapped”. Lower initial costs.

Electronic 1.5 5 Vortex Shed-ding & Target C Insertion devices are generally subject to installation methods, location, velocity profile changes, etc.

Pitot tube, Annubar I P Can be “hot tapped”. Lower initial costs.

∆P 1 5 Pitot tube, Annubar C Insertion devices are generally subject to installation methods, location, velocity profile changes, etc.

JOHNSON CONTROLS10

APPENDIX B - INSTRUMENTATION INSTALLATION

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JOHNSON CONTROLS 11

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JOHNSON CONTROLS12

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C on

JOHNSON CONTROLS 13

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P re ss ur e

C on de ss ur e co nn ec tio n va lv e

Th e co nd en se r s he ll sh al l h av e a va lv e bl oc k or ifo ld w ith

/4 ” p ip e th re ad o n th e to p of th e sh el l to a llo w th e co nn ec tio n of th e pr es su re tr an sd uc s he ll so a s no t t o in te rr up t o pe ra tio n of th e ch ill fa ci lit at e th e te st s et u p.

so n

C on hn so n

C on

E

S S

U

N S

D U

C so n

C on ss ur e

S te am S up pl y pr es co nn ec tio n va lv e

Th e st ea m s up pl y pi pi ng s ha ll ha ve a v al ve d co n-ne ct io n po in t w ith

/4

” p ip e th re ad a nd a s ip ho n tu be a t t he in le t t o th e tri p an d th ro ttl e va lv e to th e tu rb to hn so n C on

E S

S U

N

S D

U C so n C on ss ur e

S te am E xh au pr es nn ec tio n va lv e

Th e st ea m s ur fa ce c on de ns er s ha ll ha ve a v al ve d co nn ec tio n po in t w ith

/4 ” p ip e th re ad o n a sl ig ht sl op e to w ar d th e su rfa ce c on de ns er a s cl os e to th e tu rb in e ex ha us t p ip in g as p ra ct ic al

C us to hn so n C on

E S

S U

N

S D

U C so n C on ss ur e

E va po ra to r W

B ox D iff er en tia l P re ss ur e co nn ec tio n va e sh al l b e a ve rti ca l u p or h or iz on ta l v al ve d co n-ne ct io n at th e in le t a nd o ut le t w at er n oz zl es o l w at er b ox es

. T he se c on ne ct io ns s ha ll be

/4 pi pe th re ad a nd lo ca te d pr io r t o th e fi rs t e lb ow fla ng e if pr ac tic al

C us to r s he ll Jo hn so n C on

D

IF

FE

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C so n

C on ss ur e

C on de ns er W

B ox D iff er en tia l P re ss ur e co nn ec tio n va e sh al l b e a ve rti ca l u p or h or iz on ta l v al ve d co n-ne ct io n at th e in le t a nd o ut le t w at er n oz zl es o l w at er b ox es

. T he se c on ne ct io ns s ha ll be

/4 pi pe th re ad a nd lo ca te d pr io r t o th e fi rs t e lb ow fla ng e if pr ac tic al

C us to r s he ll Jo hn so n C on

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JOHNSON CONTROLS14

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Fl ow de ns at e flo w m et de ns at e sh al l b e m ea su re d in th e sa m e m an ne r a s th e ch ill er w at er fl ow ra te s.

J oh ns on

C on tro ls s ha ll pr ov id e de ta ile d in st al la tio n in st ru ct io fo r p ip e si ze o nc e th e de si gn c on de ns at e flo w ra k no n.

so n

C on r l oo p

Jo hn so n

C on xi al tu rb in e

Jo hn so n

C on

Fl ow va po ra to r flo w m flo w m et er s sh al l b e of th e ty pe re qu ire d pl y w ith A

H R

I S ta nd ar ds . R ef er to A pp en di x

A in th e

Jo hn so n

C on tro ls fi e ld P er fo rm an ce T es t

P ro ce du re fo r f ur th er g ui da nc e on s el ec tio n flo su re m en t d ev ic es

. D es ig n an d ca lib ra tio n da ta l b e m ad e av ai la bl e to J

C

TG

to a llo w in pu t t o

JC

TG

’s F ie ld

D at a A cq ui si tio n S ys te m . T he se d e-vi ce s sh al l b e in st al le d w ith u no bs tru ct ed s tra ru pi pi ng w ith a m in im um o f 1 pi pe d ia m et er s up st re am o f t he fl ow m pi pe d ia m et er s do w ns tre am o f t he fl o w m e-te r.

Th e up st re am le ng th c an b e sh or te ne d to pi pe d ia m et er s w ith th e us e of a fl ow s tra ig ht en in g bu nd le

. P ip e di am et er s is d efi ne d as th e di am e flo w m et er a nd th e pi pe in w hi ch th e flo b e m ea su re d.

B ot h sh al l b e th e sa m e di am et er

C us to r l oo p C us to

To e de te rm ed by e cu st to

JOHNSON CONTROLS 15

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F lo de m

T fl ow m et er s sh al l b e of th e ty pe re qu ire pl y w ith A

H R

I S ta nd ar ds . R ef er to A pp en di x

A in th e

Jo hn so n

C on tro ls fi e ld P er fo rm an ce T es t

P ro ce du re fo r f ur th er g ui da nc e on s el ec tio n su re m en t d ev ic es

. D es ig n an d ca lib ra tio n da ta l b e m ad e av ai la bl e to J

C

TG

to a llo w in pu t t o

JC

TG

’s F ie ld

D at a A cq ui si tio n S ys te m . T he se d e-vi ce s sh al l b e in st al le d w ith u no bs tru ct ed s tra ru pi pi ng w ith a m in im um o f 1 pi pe d ia m et er s up st re am o f t he fl ow m p ip e di am et er s do w ns tre am o f t he fl o w m e-te r.

Th e up st re am le ng th c an b e sh or te ne d to pi pe d ia m et er s w ith th e us e of a fl ow s tra ig ht en in g bu nd le

. P ip e di am et er s is d efi ne d as th e di am e flo w m et er a nd th e pi pe in w hi ch th e flo e m ea su re d.

B ot h sh al l b e th e sa m e di am et er

C us to p er lo op to

T o be d et er m ed by e cu st to

JOHNSON CONTROLS16

Form 160.67-TD1 (1110) Supersedes: 160.72-TD6 (1104)