Our P Series is a range of three-pass cast iron sectional boilers perfect for use with gas, light oil, dual fuel and bio-fuel through a pressure jet burner for commercial and industrial applications. Designed on the basis of the triple-pass principle to achieve maximum efficiency, the generously-sized chamber provides for 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 suitable for replacement projects only).

Due to changes in ErP regulations, from 1st January 2018, non-condensing Pressure Jet boilers replacements below 400kW can no longer be installed. So that we can be compliant with this regulation change, we can no longer take orders for the P-Series P320 range and the P420-8.

There are lots of options available to replace these products that are both highly efficient and compliant. Take a look at our other product ranges or speak to your Area Sales Manager who will be able to advise on the range of solutions available

  • High combustion efficiency - Higher than average energy savings
  • Triple-pass flueways design - Maximises efficiency
  • Large combustion chamber - Minimises NOx and CO2 emissions
  • Eutectic cast iron boiler body - Provides exceptional resistance to temperature variations, thermal shocks and corrosion
  • Reinforced fibreglass wool insulation and double insulation of boiler front - Minimises heat loss for improved thermal efficiency
  • Easy installation for new and existing plant rooms - Time saving
  • P520 is delivered as standard with pre-set water flow switch - Quick and easy installation

LITERATURE FOR P SERIES

Download literature and product documentation for the P Series by clicking the links below.

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

Check burner details

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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

2.85

3.18

3.54

3.8

4.12

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

2.5" Flanged

2.5" Flanged

2.5" Flanged 2.5" 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

NOx (Dry, 0% 02) Mg/kWh

37

37

32

29

35

35

Noise levels dB(A) at 1 metre

check burner details

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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 x 1Ph x 50hz

230v x 1Ph x 50hz

230v x 1Ph x 50hz

230v x 1Ph x 50hz

230v x 1Ph x 50hz

230v x 1Ph x 50hz

Start current amps

1.8

1.8

1.8

1.8

1.8

2.2

Power consumption W

18-39

18-68

23-88

20-125

45-199

47-275

Modulating input V dc

0-10

0-10

0-10

0-10

0-10

0-10

Fuse rating amps

6.3

6.3

6.3

6.3

6.3

6.3

Controls voltage

24 (max 4va)

24 (max 4va)

24 (max 4va)

24 (max 4va)

24 (max 4va)

24 (max 4va)

Electrical protection index VAC

X4D

X4D

X4D

X4D

X4D

X1B

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

  • Aircraft Research Association

    New efficiency heights for ARA with Remeha boilers.

    ARA needed to replace the failing boilers at its Bedford facility to improve reliability and performance of the heating.
  • Heron Tower

    Remeha boilers contribute to BREEAM ‘Excellent’ rating.

    The iconic 230-metres tall skyscraper in the City of London creates the benchmark for innovation, quality and sustainability.
  • Imperial War Museum North

    P Series boilers provide reliable heating at museum.

    Darren Chesworth of J Fletcher Engineering recommended replacing the bank of four boilers with two Remeha P 320 pressure jet gas high-efficiency boilers.
  • John Lewis, Kingston

    P Series boilers raise energy efficiency of department store.

    John Lewis in Kingston upon Thames needed to provide a more effective and efficient heating solution for its 359,000 square-foot department store.

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