Heating Balance


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Oxford Environmental Limited Project:

Union Road - Clapham

Ref.:

System:

Primary Heating Pumps

Sheet:

1

of

System Witness Certificate The system detailed within has been witnessed to the Clients representative, the test data is a true record of the system performance achieved

Witnessed By:

Company:

Date:

Test Completed By:

J Ridley

Services Contractor:

H & V Service Plan

Date:

24/06/2015

Comments:

30 Poplars Road Chacombe Banbury Oxfordshire OX17 2JY 07787402271 [email protected]

5

Oxford Environmental Limited Balancing Method Project:

Suttons Wharf

System:

Primary Heating Pumps

Ref.:

Sheet:

2

of

Balance Summary The system has been balanced by opening the flushing loops located at the top of the risers. These were then measured on the DRV's on the ground floor and proportionally balanced. The DPCV's were then set to allow a maximum flow of 0.35 L/s so that the total flow returning to the pump in idle conditions does not exceed 1.40 L/s. The pressure differential was logged and recorded from the Trend IQ in this running condition at 0.80 Bar.

Engineer:

J Ridley

Date:

24/06/2015

30 Poplars Road Chacombe Banbury Oxfordshire OX17 2JY 07787402271 [email protected]

5

Oxford Environmental Limited Pump Detail & Performance Test Record Project:

Union Road - Clapham

Ref.:

System:

Primary Heating Pumps

Sheet:

3

of

PUMP

Item

Static Check Grundfos Magna 3 65-150 F 340 10004129 10004129 n/a n/a

Comments

Item

Static Check Grundfos n/a

Comments

Make Model & Size Serial Number 1 Serial Number 2 Pulley/Shaft/Bush Belt

MOTOR

Make & Model Frame Serial Number 1 Serial Number 2 Power Full Load Current Voltage Pulley/Shaft/Bush

PERFORMANCE

Item Volume Flow Rate Pump Suction Pump Discharge Pump Total Pump Suct Closed Head Pump Dis Closed Head Pump Closed Head Run Current Pump Speed Motor Speed

n/a n/a

(KW) (Amps) (Volts)

L/s Kpa Kpa Kpa Kpa Kpa Kpa Amp rpm rpm

1.30 Kw 5.68 A 230 v n/a Design Data 6.50 n/a n/a n/a n/a n/a n/a 5.68 A Direct Drive

Test Data No.1 6.49 100% 210 Kpa 330 Kpa 120 Kpa 240 Kpa 380 Kpa 140 Kpa 5.1 A 4050 Rpm 4050 Rpm

Test Data No.2 6.49 100% 210 Kpa 330 Kpa 120 Kpa 240 Kpa 380 Kpa 140 Kpa 5.1 A 4050 Rpm 4050 Rpm

Comments: * Pressure differential control set at 0.80 Bar ** The above design has been given for the 65 flats that are complete. The #16 future flats when finished will increase the design to 8.10 L/s.

Engineer:

5

J Ridley

Date:

24/06/2015

30 Poplars Road Chacombe Banbury Oxfordshire OX17 2JY 01295711779 [email protected]

Oxford Environmental Limited Water Distribution Test Record Project:

Union Road - Clapham

Ref.:

System:

Primary Heating Pumps

Sheet:

Design Information Size Type Kvs mm

Ref. No.

Manuf

Block A

VIR

9515

50

DPCV

OV

MTR

Block B

VIR

DPCV

4

of

5

Measured % Design

Reg. Set

Bypass Set

Flow I/s

PD kpa

PD kpa

Flow I/s

55.07

1.60

1.09

0.95

1.49

93

F-O

n/a

25

8.6

0.35

2.15

2.00

0.34

97

1.2

n/a

9515

50

55.07

1.50

0.96

0.90

1.45

97

F-O

n/a

OV

MTR

25

8.60

0.35

2.15

1.90

0.33

94

1.5

n/a

Block C

VIR

9515

50

55.07

2.00

1.71

1.70

1.99

100

F-O

n/a

DPCV

OV

MTR

25

8.60

0.35

2.15

2.00

0.34

97

2.1

n/a

Block D

VIR

9515

50

55.07

1.40

0.84

0.90

1.45

104

F-O

n/a

DPCV

OV

MTR

25

8.60

0.35

2.15

1.90

0.33

94

1.2

n/a

Main

Zetkama

447

100

184.7

6.50

1.61

1.60

6.49

100

1.8

n/a

Comments: * Primary Pump Inverter reading at 23.8 m3/h @ 6.61 L/s @ 12.6 M

Engineer:

J Ridley

Date:

24/06/2015

9-11 Wellesley Avenue, Richings Park, Iver, Bucks, SL0 9AX Tel: 01753 654847 Fax: 01753 650721

Oxford Environmental Limited System Schematic Project:

Union Road - Clapham

Ref.:

System:

Primary Heating Pumps

Sheet:

Block D

Block C

Block B

5

of

Block A

By Pass at top of each riser

P

Boiler

Primary Pumps

Comments:

Engineer:

J Ridley

Date:

24/06/2015

30 Poplars Road Chacombe Banbury Oxfordshire OX17 2JY 07787402271 [email protected]

5