Potterton NXR4, Installation, Operation & Maintenance Manual

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Fig. 1 – General Data & Dimensions (all dimensions in mm)
Table 1 – Boiler Dimensions
NXR4 Type 409 410 411 412 413 414 415 416 417
A mm 1640 1780 1920 2060 2200 2340 2480 2620 2760
B mm 1440 1580 1720 1860 2000 2140 2280 2420 2560
ØD mm 300 350
Table 2 – Combustion Chamber Data
Model 409 410 411 412 413 414 415 416 417
Mean Diameter mm 525
Cross Sectional Area m
2
0.216
Length (X) mm 1120 1260 1400 1540 1680 1820 1960 2100 2240
Volume m
3
0.24 0.27 0.30 0.33 0.36 0.39 0.42 0.45 0.48
Surface Area m
2
2.06 2.28 2.51 2.74 2.97 3.20 3.43 3.66 3.89
Resistance/Pressure mbar 1.5 2.1 2.2 2.8 3.3 3.3 4.5 5 6
Flue Gas Temperature (Gross) °C 180
Efficiency All Fuels (Nett) % 92
(Gross) % 83
Percentage CO
2
Oil % 12
Gas % 9
450
1295
1511
1070
700
X
ØD
400
35
PN 16 125mm
Mating Flange.
732
497
A
B
PN16 125mm
Mating Flanges
140
1098
3/4" Drain
Valve
Front Rear Side
POTTERTON COMMERCIAL PRODUCTS DIVISION SECTION 1
INSTALLATION, OPERATION & MAINTENANCE MANUAL
PAGE 1
NXR4