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SECTION 1
PAGE 2
Table 3
Model
CE Number
Output
1
Fuel
Consumption
Input (Net)
Input (Gross)
Maximum Design
Pressure
Minimum Operating
2
Pressure
Nominal Flue
3
Connection
Flue Gas Volume Gas
4
Flue Draught
Requirements
High Level Natural
5
Ventilation to BS6644
Low Level Natural
5
Ventilation BS6644
6
Mechanical Ventilation
7
Water Connection Size
Water Flow at 11°C ∆t
8
Hydraulic Resistance at
8
11°C ∆t
Cold Feed Size to BS
9
6644 Min Bore
Open Vent Size to BS
9
6644 Min Bore
Safety Valve Size to BS
9
6644 Nominal Bore
Maximum Flow
Temperature
Minimum Return
10
Temperature
11
Dry Weight
Water Content
Power Requirements
See page 3 for explanatory notes
POTTERTON COMMERCIAL PRODUCTS DIVISION
INSTALLATION, OPERATION & MAINTENANCE MANUAL
409
kW
320
3
Gas
m
/hr
36
Oil
lit/hr
35.7
Gas
kW
347.6
Oil
kW
Gas
kW
386
Oil
kW
Bar
Bar
Ømm
3
m
/hr
472
Oil
2
cm
997
2
cm
1995
3
m
/sec
0.425
BSP
lit/sec
6.93
kPa
1.56
mm
mm
mm
25
°C
°C
kg
1589
kg
302
410
411
412
0085AQ0752
380
440
500
42.7
49.4
56.1
42.4
49
55.7
412.4
477.2
542.1
458
530
602
6 BAR ALL MODELS
1 BAR ALL MODELS
300
560
648
736
Balanced
1159
1321
1482
2318
2641
2965
0.504
0.583
0.662
5" (125mm)
8.23
9.52
10.82
2.16
2.84
3.61
38
50
32
40
90°C ALL MODELS
55°C ALL MODELS (DIRECT COMPENSATED)
1745
1884
2028
334
366
398
Boiler Control Circuit 240V 1Ph 50Hz, Fused 6.3A
Conversion table on inside of back cover
413
414
415
560
620
680
62.9
69.7
76.4
62.5
69.1
75.8
607.8
672.7
737.5
675
747
819
350
825
914
1002
1644
1806
1967
3288
3611
3935
0.743
0.822
0.901
12.12
13.42
14.72
4.46
5.39
6.42
50
53
55
50
2166
2315
2445
430
462
494
NXR4
416
417
740
800
83.2
89.9
82.5
89.2
803.2
868.1
892
964
1091
1179
2129
2291
4258
4581
0.981
1.06
16.02
17.32
7.51
8.68
58
60
65
2585
2725
526
558
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