Potterton NXR4 Installation, Operation & Maintenance Manual page 2

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