Technical Specifications

Ours is a policy of continuous development, we therefore reserve the right to alter specifications without prior
notification. Remeha Commercial accept no liability for any loss or damage rising from any errors or omissions
that may be inadvertently contained in this specification sheet. 
Boiler Type
P520 – 21
Issue Date :
June 2012
TECHNICAL SPECIFICATION SHEET
Quick reference specification sheet full details can be found in the P520 series Installation/Service guide.
General Details
Corrosion resistant cast iron sectional boiler, jointed by conical nipples and ceramic rope, designed
with three passes for high efficiency and low NOx emission. Large insulated door (hinged left or right)
allowing easy access for cleaning. Powder coated enamel steel casing c/w fibreglass insulation.
All of the P520 Boiler Range are supplied un-assembled for delivery to site.
CE approved. Boiler Efficiency data to 92/42-EEC
MODEL : P520
No of SECTIONS : 21
Rated Output kW :
1160 - 1218
Efficiency % : NCV Full load (³)
90
Weight (dry) kgs :
4538
Seasonal Efficiency : % GCV
84.5
Overall Dim WxHxD mm :
1172x1760x2955
Radiated Losses % :*
0.06
BURNER TYPE
Pressure Jet
Fuel Available :
Nat Gas
Oil (35 sec)
Dual Fuel
Fuel Consumption :
Check burner details
114.66 Kgs/hr ##
Noise levels dB(A) :
Check burner details
Min Op Gas Press mbar :
Check burner details
HYDRAULICS
Water Content ltrs :
943
Min Return Temp °C
50
Resistance @ 11°C ∆t mbar :
44.28
Connection Size mm (weld) :
159
Resistance @ 20°C ∆t mbar :
13.4
Std Operating Temp °C :
80
Nom Flow Rate @ 11° C ∆t l/s :
26.45
Max Operating Temp °C :
90
Nom Flow Rate @ 20° C ∆t l/s :
14.55
High Limit Set Point °C :
110
Min Flow Rate l/s : #
6.44
Max Op Press bars :
As per Technical
Manual
Test Press bar :
As per Assembly
Manual
FLUE
Diameter mm :
Cut Plain Plate as required
(Max 500 x 700mm)
Flue Gas Flow kgs/hr Gas : (¹)
1750
Flue Type :
Conventional
Flue Gas Flow kgs/hr Oil : (¹)
1670
Chamber Resist. mbar :
+ 3.1
Flue Gas Temp °C : (¹)(²)
<190
ELECTRICAL
Voltage :
230.1.50
Note: 1ph burners obtain their
power supply via the boiler.
Fuse rating amps :
10Amp Circuit Breaker
3ph burners require a 3ph
supply + a 1ph to the boiler.
CONTROL OPERATION
Standard :
On / Off Thermostat
Temperature indication
L/O lamp
High limit Thermostat
Volt free run/lock indication
On/Off switch
High / Low
3 Position Switch Auto/Man/Test
10amp CB
Optional :
Modulating (via burner)
Hours Run Meters
(¹) Boiler at full output average temperature 80/60°c (70°c mean)
(²)
Boiler temperature: 80 °C, Ambient temperature: 20 °C
(³) 70°c average temperature
* Maintenance consumption @ 30
0
delta t - refer to boiler installation/service manual
# Based on ∆t of 45°c, ## @ 12 bar pump pressure