AHU Supply Front Package

DATE 18/09/07

TSE 4

PROJECT MRC, Project ARES

SYSTEM General Supply - AHU's 1, 2, 3 & 4

COMMISSIONING RESULTS FOR THE ABOVE SYSTEM ARE DETAILED ON

THE FOLLOWING SHEET NUMBERS 1 to 142

DATED 9/18/2007

COMMISSIONING ENGINEER WITNESSED BY

Lloyd Kelsey

On behalf of On behalf of

Date

Comments by witness agent

Sheet 1 of 142

Taylor & Stapleton Engineering Ltd. Welwyn, Herts. AL6 9NP Tel 01438 718666 Fax 01438 718668

COMMISSIONING RESULTS WITNESS SHEET

Taylor & Stapleton Eng. Ltd.,

DATE 18/09/07

TSE 5

PROJECT: MRC, Project ARES

ENGINEER: Sheet 2 of 142

Taylor & Stapleton Engineering Ltd. Welwyn, Herts. AL6 9NP Tel 01438 718666 Fax 01438 71 8668

COMMISSIONING RESULTS SYSTEM REPORT SHEET

SYSTEM: General Supply - AHU's 1, 2, 3 & 4

This supply system comprises of four ahu’s located on the second floor plant deck. This system is generally three ahu’s running and one stand by. Our commissioning works have been divided into three sections, the first proportional balance of secondary grilles located on the ground floor, the second controls calibration and the third pressure regime set up.

Secondary Balance

Prior to carrying out the proportional balance of the grilles on the ground floor, the design volume for the required stack was set via the vcd in the plantroom and the volume measured by means of pitot traverse. Whilst carrying out this exercise both major and minor dampers were position to fifty percent open to simulate the operating conditions of the system. This was done, as the controls were incomplete at the time of testing. Factors have been used on both size hoods for the supply and the extract. They are as follows:

Supply – 600 x 600 the factor was taken at grille T40/04 = 1.06Supply – 1200 x 600 the factor is a summation of the grilles in the procedure rooms against the traverse in the plantroom. We calculated this factor for all the procedure rooms and used the average. This was done, as there was no other suitable location for a factor at the time of testing. = 1.15Extract – 600 x 600 the factor was taken at grille’s E48/07 & E48/06 = 1.0Extract – 1200 x 600 the factor was taken in the procedure rooms, using the single grille volume against the traverse in the plantroom. . We calculated this factor for all the procedure rooms and used the average. This was done, as there was no other suitable location for a factor at the time of testing = 1.18

These factors have been applied to the readings taken from the balometer.

Controls Calibration

The controls system operates using the following method. A single point velocity sensor measures the velocity of the air as it passes through the duct, this velocity is then multiplied by the free area of the duct in which it is located to calculate the volume of air passing through the stack. When testing we found that a single point reading did not provide an accurate representation of the volume of air passing through the stack. Although the sensors are generally located after the hepa filter this did not stabilised the flow of air, therefore a single point reading does not give a true volume as the velocity of the air differs through out the duct.

We calibrated each sensor by measuring a volume by means of pitot traverse. We have taken the majority of these volumes in the attenuators. We did this where we were unable to obtain a suitable test point due to the ductwork configuration. Before measuring the volume of air at the stack we confirmed it was controlling at the design volume via the bms. Then using the following formula we calibrated the sensor by factorising the free area of the duct in which the sensor is located.

This ultimately would change the bms volume, we would then wait for the stack to control to the required set point and re-measure the traverse to confirm the volume was correct.All the factorised areas have been recorded on a separate spreadsheet please see this for further information.

Pressure Regime

The controls of the building work by supplying the required amount of air to each room, the extract will then control to suit the design pressure in the space. Please see layout drawing for required pressures in each room. We have then validated the pressure regime on the ground floor with our Micromanometer to confirm we are achieving the correct room differential pressures. All of these tests have been carried out with all doors shut.

DATE 18/09/07

TSE 11


FAN DETAILS DRIVE DETAILS MOTOR DETAILS

MAKE Comefri TYPE Belt and Pulley MAKE Leroy Somer

TYPE TZAF 900 T2 BELT SIZE/TYPE SPC 3550 TYPE LS280MD-T

SIZE - No. BELTS 3 SHAFT DIA. 25

SPEED 1600 MOTOR PULLEY SPC 335 SERIAL NO. -

SHAFT DIA. 60 FAN PULLEY SPC 335 FRAME No. -

SERIAL NO. - PULLEY CENTRES 1850 400 V - amps

PITCH ANGLE - FAN BUSH 3535 3 Ph 1478 R.P.M

MOTOR BUSH 3535 90 kw

FAN PRE COMMISSIONING AND INSPECTION CHECKS

CHECK THAT: Y / N / NA COMMENTS /FOLLOW UP REFERENCES

1, AIR FILTERS ARE INSTALLED AND ACCESSIBLE Y

2, FAN CHAMBER / AIR HANDLING UNIT IS CLEAN Y

3, FAN / MOTOR ROTATES FREELY Y

4, DRIVE GUARDS ARE FITTED Y

5, MOTOR LEVEL AND ALIGNED Y

6, FLEXIBLE CONNECTIONS ARE FITTED CORRECTLY Y

7, TRANSIT BOLTS ARE REMOVED Y

8, LOCAL ISOLATOR OR LOCK STOP FITTED Y

9, DIRECTION OF MOTOR / FAN IS CORRECT Y

10, AIR LEAKAGE TEST COMPLETE Y By others

11, THERMAL OVERLOAD RATING - Inverter protected

12, THERMAL OVERLOAD SET CORRECTLY - Inverter protected

13, MOTOR FUSE RATING - Inverter protected

14, MOTOR FUSE RATING CORRECT - Inverter protected

COMMENTS

ENGINEER Sheet 3 of 142

Taylor & Stapleton Engineering Ltd. Welwyn, Herts. AL6 9NP Tel. 01438 718666 Fax. 01438 718668

COMMISSIONING RESULTS FAN INSPECTION SHEET

SYSTEM: General Supply - AHU 1

DATE 18/09/07

TSE 11



























COMMENTS





DATE 18/09/07

TSE 13

PROJECT: MRC, Project ARES SYSTEM: General Supply - AHU 1PARAMETERS

STARTING CURRENT RUNNING CURRENT MOTOR SPEED FAN SPEED

MOTOR No. 1 BK BR G

MOTOR No. 2 BK BR G

STATIC PRESSURE PLOT (RELATE TO TEST POINTS TO FAN / AHU SCHEMATIC)

LOCATION Pa LOCATION Pa

A Ahu suction G Fan discharge

B Before pad filters H Ahu discharge

C After pad filters STATIC PRESSURE DIFFERENTIAL ACROSS:

D Before bag filters FAN / AHU / Pa

E After bag filters PAD FILTERS Pa

F Fan suction BAG FILTERS Pa

FAN / AHU SCHEMATIC

1 2 3 4 5 6 DUCT SIZE 2806 mm 2400 mm

3.69 3.37 3.49 3.28 3.36 3.59 DUCT AREA 6.73

3.49 3.21 3.47 3.26 3.13 3.54 AVERAGE VELOCITY 3.37 m/s

3.64 3.48 3.47 3.40 3.40 3.67 TESTED DUTY 22.69 Pa

7 8 9 10 DESIGN DUTY 19.20 Pa

3.38 3.44 3.24 3.26 % DESIGN 118 %

3.27 3.09 3.17 3.26 STATIC PRESSURE - Pa

3.45 3.13 3.29 3.15

COMMENTS

INSTRUMENTS USED Anemometer TS No. 11

ENGINEER LK + AC Sheet 7 of 142


COMMISSIONING RESULTS FAN PERFORMANCE TEST SHEET

TEST POINT

TEST POINT

m2

m3/s @

m3/s @

Flow grid calibrations carried out with fan fixed @ 45 HzFinal fan test with fans running in auto @ Hz.

Volume measured by means of anemometer scan inside ahu. Readings taken between heating and cooling coil. This volume was used to calibrated ahu flow grid. Ahu fixed @ 45 Hz at time of testing.BMS Volume after offset applied - 22.4 m3/s = 117%

Hum

idifier

ABCDEFG

H

DATE 18/09/07

TSE 13



MOTOR No. 1 BK BR G

MOTOR No. 2 BK BR G









FAN / AHU SCHEMATIC

1 2 3 4 5 6 DUCT SIZE 2806 mm 2400 mm

3.54 3.33 3.40 3.27 3.52 3.36 DUCT AREA 6.73


3.50 3.21 3.06 3.38 3.23 3.20 TESTED DUTY 22.54 Pa


3.45 3.41 3.20 3.49 % DESIGN 117 %


3.19 3.24 3.53 3.49

COMMENTS





TEST POINT

TEST POINT

m2

m3/s @

m3/s @



Hum

idifier

ABCDEFG

H

DATE 18/09/07

TSE 13



MOTOR No. 1 BK BR G

MOTOR No. 2 BK BR G









FAN / AHU SCHEMATIC

1 2 3 4 5 6 DUCT SIZE 2806 mm 2400 mm

2.92 2.62 2.79 2.23 2.19 2.83 DUCT AREA 6.73


2.79 2.79 2.73 2.47 2.30 2.87 TESTED DUTY 17.57 Pa


2.68 2.51 2.58 2.51 % DESIGN 92 %


2.68 2.64 2.63 2.52

COMMENTS





TEST POINT

TEST POINT

m2

m3/s @

m3/s @

Flow grid calibrations carried out with fan fixed @ 45 HzFinal fan test with fans running in auto @ Hz.Flexible connection on fan discharge found damaged @ time of testing.


Hum

idifier

ABCDEFG

H

DATE 18/09/07

TSE 13



MOTOR No. 1 BK BR G

MOTOR No. 2 BK BR G









FAN / AHU SCHEMATIC

1 2 3 4 5 6 DUCT SIZE 2806 mm 2400 mm

3.36 3.26 3.40 3.32 3.33 3.39 DUCT AREA 6.73


3.24 3.48 3.47 3.15 3.49 3.45 TESTED DUTY 22.03 Pa


3.32 2.96 3.20 3.29 % DESIGN 115 %


3.25 3.27 2.91 3.35

COMMENTS





TEST POINT

TEST POINT

m2

m3/s @

m3/s @



Hum

idifier

ABCDEFG

H

AHU Supply Front Package

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