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P Series

Floor-standing, oil, gas and dual fuel, pressure jet and cast iron sectional commercial boilers.

products-p-series

The P Series is our range of three-pass cast iron sectional boilers. Perfect for use with gas, light oil, dual fuel, and biofuel through a pressure jet burner for commercial and industrial applications.

Designed on the basis of the triple-pass principle to achieve maximum efficiency, while the generously sized chamber allows optimal combustion and minimum NOx and CO2 emissions.

Compact yet extremely powerful, the P Series is available in two ranges: P420 and P520 (the P320 is suitable for replacement projects only)

If you need support choosing the best Pressure Jet solution for your project, just contact our team of dedicated experts who will talk you through the range. High combustion efficiency for higher than average energy savings.

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  • Features and benefits
  • Literature library
  • Technical information

Features and benefits

  • Triple-pass flueways design to maximise efficiency
  • The large combustion chamber minimises NOx and CO2 emissions
  • The eutectic cast iron boiler body provides exceptional resistance to temperature variations, thermal shocks and corrosion
  • Reinforced fibreglass wool insulation and double insulation of the boiler front minimises heat loss and improves thermal efficiency
  • Time-saving easy installation for new and existing plant room
  • P520 is delivered as standard with pre-set water flow switch for a quick, easy installation

Literature for P Series

Specification guideP-Series Specification Guidepdf
User ManualsP420 Installation Service Manualpdf
P520 Assembly Instructionspdf
P520 Installation Service Manualpdf
Technical SheetsP420 10 Technical Sheetpdf
P420 11 Technical Sheetpdf
P420 12 Technical Sheetpdf
P420 13 Technical Sheetpdf
P420 14 Technical Sheetpdf
P420 9 Technical Sheetpdf
P520 13 Technical Sheetpdf
P520 15 Technical Sheetpdf
P520 17 Technical Sheetpdf
P520 19 Technical Sheetpdf
P520 21 Technical Sheetpdf
P520 23 Technical Sheetpdf
P520 25 Technical Sheetpdf
P520 Technical Informationpdf
P320 4 Technical SpecificationsDiscontinuedpdf
P320 5 Technical SpecificationsDiscontinuedpdf
P320 6 Technical SpecificationsDiscontinuedpdf
P320 7 Technical SpecificationsDiscontinuedpdf
P320 8 Technical SpecificationsDiscontinuedpdf
P320 9 Technical SpecificationsDiscontinuedpdf
P420 8 Technical SpecificationsDiscontinuedpdf
Pressure Jet GP SeriesDiscontinuedpdf
Pressure Jet OG SeriesDiscontinuedpdf
P-Series Pressure JetDiscontinuedpdf
P-Series Pressure Jet ODDiscontinuedpdf

Technical Information

Click to download the technical specification for the P Series in PDF format

 

9-Section

10-Section

11-Section

12-Section

13-Section

14-Section

Performance

Nominal heat output central heating operation @ 80/60°C kW (min-max)*

450

540 600 670 720 780

Efficiency

Efficiency – full load 100% NCV

88%

88%

88%

88%

88%

88%

Seasonal efficiency GCV

82.2%

82.2%

82.2%

82.2%

82.2%

82.2%

Burner type / Pressure jet

Standard fuel

Natural gas/oil (35 sec)/dual fuel

Natural gas/oil (35 sec)/dual fuel

Natural gas/oil (35 sec)/dual fuel

Natural gas/oil (35 sec)/dual fuel

Natural gas/oil (35 sec)/dual fuel

Natural gas/oil (35 sec)/dual fuel

Max gas consumption

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Oil consumption kg/hr @ 12 bar pump pressure

43.33

52 57.77 64.52 63 75.11

Min op gas pressure mbar

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Flue (conventional connection)

Flue diameter mm I/D

250

250 300 300 300 300

Chamber resistance mbar

+1.5 +2.0 +2.5 +2.5 +2.5 +3.5

Flue gas flow rate kg/h gas

810 972 1080 1207 1297 1450

Min/max flue gas flow rate g/s

4.1-15.1

4.1-20.7

5.9-30.1

6.5-39.5

8.0-52.8

76.9 max

Average flue gas temperature boiler temperature 80°C

less than 220

less than 220 less than 220 less than 220 less than 220 less than 220

Flue gas flow rate kg/h oil (full output 80/60°C)

750

900 1000 1116 1200 1405

Hydraulics

Water content litres

409

452

495

538

581

624

Resistance @ 11°C ΔT mbar

39.7

66

82.6

109.2

132.17

162.23

Hydraulic resistance @ 20°C ΔT mbar

12

20

25

33

40

49

Nominal flow rate @11°C ΔT l/s

9.77

11.73

13.03

14.55

15.64

16.94

Nominal flow rate @ 20°C ΔT l/s

5.38

6.45

7.17

8.0

8.6

9.32

Min. flow rate l/s based on a ΔT of 45°C

2.39

2.85

3.18

3.54

3.8

4.12

Connection size BSP

2.5" Flanged

2.5" Flanged

3" Flanged

3" Flanged

3" Flanged 3" Flanged

Standard operating temperature °C **

80

80

80

80

80

80

Max operating temperature °C

90

90

90

90

90

90

Max water temperature °C

110

110

110

110

110

110

Max water operating pressure bar

6

6

6

6

6

6

Test press bar

As per assembly manual

As per assembly manual

As per assembly manual

As per assembly manual

As per assembly manual

As per assembly manual

Minimum return temperature °C

50

50

50

50

50

50

High limit set point °C

110

110

110

110

110

110

General

Shipping weight (kg)

1650

1830

2010

2190

2370

2550

Dimension (WxHxD inc. flow, return and gas pipework mm)

1000 x 1690 x 1950

1000 x 1690 x 2120

1000 x 1690 x 2305

1000 x 1690 x 2465

1000 x 1690 x 2625

1000 x 1690 x 2785

Noise levels dB(A) at 1 metre

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Minimum operating gas pressure

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Radiated losses (w) based on ΔT 45°C

358

413

451

494

505

555

Combustion chamber diameter

530

530

530

530

530

530

Electrical

Nominal power supply

230v x1ph x 50hz

230v x1ph x 50hz

230v x1ph x 50hz

230v x1ph x 50hz

230v x1ph x 50hz

230v x1ph x 50hz

Fuse rating (amps)

10

10

10

10

10

10

*Gas consumption based on lower heating value under standard heating conditions: T=288.15K, p=1013.25mbar. Gag 30.33, G25 29.25, G31 88.00 MJ/m3

**Open vented option maximum operating temperature 75°C

Note: 1 ph burners obtain their power supply via the boiler. Fuse rating amps: 10.4 mp 3ph burners require a 3ph supply + 1ph to the boiler

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