POTTERTON COMMERCIAL PRODUCTS DIVISION
SECTION 1
INSTALLATION, OPERATION & MAINTENANCE MANUAL
NXR3
PAGE 1
Fig. 1 – General Data and Dimensions
Table 1 – Boiler Dimensions
NXR3
Model
34
35
36
37
38
39
A
mm
995
1165
1335
1505
1675
1845
B
mm
900
1070
1240
1410
1580
1750
∅
D
mm
180
200
Water Connections F&R
2½” BSP Screwed Flanges (PN6)
Table 2 – Combustion Chamber Data
Model
34
35
36
37
38
39
Mean Diameter
mm
474
Cross Sectional Area
m
2
0.176
Length (X)
mm
625
795
965
1135
1305
1475
Volume
m
3
0.11
0.14
0.17
0.2
0.23
0.26
Surface Area
m
2
1.11
1.36
1.61
1.87
2.12
2.37
Resistance
mbar
0.25
0.54
0.95
1.32
2
2.52
Flue Gas Temperature
(Gross)
°C
170
160
Percentage CO
2
OIL
%
13
GAS
%
9.5
Flow
10
10
Drain 1 1/2" BSP
Return
110
81
5
450
402
X
DØ
B
A
145
75
520
606
11
80
13
96
800
Clean
out Hole
2" BSP (FRONT VIEW)
(SIDE VIEW)
(REAR VIEW)
Flow
10
10
Drain 1 1/2" BSP
Return
110
81
5
450
402
X
DØ
B
A
145
75
520
606
11
80
13
96
800
Clean
out Hole
2" BSP (FRONT VIEW)
(SIDE VIEW)
(REAR VIEW)