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P Series
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Remeha P-series Pressure Jet Boilers

Pressure Jets

P Series

The P Series is our range of three-pass cast iron sectional boilers. Perfect for use with gas and dual fuel 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.

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Features and Benefits

Maximise efficiency

Triple-pass flueways design to maximise efficiency

Low emissions

The large combustion chamber minimises NOx and CO2 emissions

Resistance to temperature variations

The eutectic cast iron boiler body provides exceptional resistance to temperature variations, thermal shocks and corrosion

Improves thermal efficiency

Reinforced fibreglass wool insulation and double insulation of the boiler front minimises heat loss and improves thermal efficiency

Easy installation

Time-saving easy installation for new and existing plant room

Pre-set water flow switch

P520 is delivered as standard with pre-set water flow switch for a quick, easy installation

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Product Literature

Installation & Service Manuals

Installation Manuals

Specification Guides

Specification Guides

Technical Specifications

Technical Specifications

BIM

BIM

Technical Specification

Model

9-Section

10-Section

11-Section

12-Section

13-Section

14-Section

Performance
Nominal heat output central heating operation450540600670720780
@ 80/60°C kW (min-max)*
Efficiency
Efficiency – full load 100% NCV88%88%88%88%88%88%
Seasonal efficiency GCV82.2%82.2%82.2%82.2%82.2%82.2%
Burner type/Pressure jet
Standard fuelNatural gas/(35 sec)Natural gas/(35 sec)Natural gas/(35 sec)Natural gas/(35 sec)Natural gas/(35 sec)Natural gas/(35 sec)
/dual fuel/dual fuel/dual fuel/dual fuel/dual fuel/dual fuel
Max gas consumptionCheck burner detailsCheck burner detailsCheck burner detailsCheck burner detailsCheck burner detailsCheck burner details
Oil consumption kg/hr @ 12 bar pump pressure43.335257.7764.526375.11
Min op gas pressure mbarCheck burner detailsCheck burner detailsCheck burner detailsCheck burner detailsCheck burner detailsCheck burner details
Flue (conventional connection)
Flue diameter mm I/D250250300300300300
Chamber resistance mbar+1.5+2.0+2.5+2.5+2.5+3.5
Flue gas flow rate kg/h gas8109721080120712971450
Min/max flue gas flow rate g/s4.1-15.14.1-20.75.9-30.16.5-39.58.0-52.876.9 max
Average flue gas temperature boilerless than 220less than 220less than 220less than 220less than 220less than 220
temperature 80°C
Flue gas flow rate kg/h oil (full output 80/60°C)7509001000111612001405
Hydraulics
Water content litres409452495538581624
Resistance @ 11°C ΔT mbar39.76682.6109.2132.17162.23
Hydraulic resistance @ 20°C ΔT mbar122025334049
Nominal flow rate @11°C ΔT l/s9.7711.7313.0314.5515.6416.94
Nominal flow rate @ 20°C ΔT l/s5.386.457.178.08.69.32
Min. flow rate l/s based on a ΔT of 45°C2.392.853.183.543.84.12
Connection size BSP2.5" Flanged2.5" Flanged3" Flanged3" Flanged3" Flanged3" Flanged
Standard operating temperature °C **808080808080
Max operating temperature °C909090909090
Max water temperature °C110110110110110110
Max water operating pressure bar666666
Test press barAs per assemblyAs per assemblyAs per assemblyAs per assemblyAs per assemblyAs per assembly
manualmanualmanualmanualmanualmanual
Minimum return temperature °C505050505050
High limit set point °C110110110110110110
General
Shipping weight (kg)165018302010219023702550
Dimension (WxHxD inc. flow, return and1000 x 1690 x 19501000 x 1690 x 21201000 x 1690 x 23051000 x 1690 x 24651000 x 1690 x 26251000 x 1690 x 2785
gas pipework mm)
Noise levels dB(A) at 1 metrecheck burner detailscheck burner detailscheck burner detailscheck burner detailscheck burner detailscheck burner details
Minimum operating gas pressurecheck burner detailscheck burner detailscheck burner detailscheck burner detailscheck burner detailscheck burner details
Radiated losses (w) based on ΔT 45°C358413451494505555
Combustion chamber diameter530530530530530530
Electrical
Nominal power supply230v x1ph x 50hz230v x1ph x 50hz230v x1ph x 50hz230v x1ph x 50hz230v x1ph x 50hz230v x1ph x 50hz
Fuse rating (amps)101010101010

*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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