4
Concord CXS -
Installation & Servicing
Boiler
CXS 40 CXS 50 CXS 60 CXS 70 CXS 80 CXS 90 CXS100 CXS 110 CXS 120
Number of sections
3
4
4
5
5
6
6
6
7
Flow tappings
Rc (in. BSP)
2 x 2 at rear
Return tappings
Rc (in. BSP)
2 x 2 at rear
Maximum static head
metres (feet)
61.0 (200)
45.7 (150)
Maximum pressure
bar (p.s.i.)
6.0 (87)
Gas inlet connection
Rc (in. BSP)
3/4 (3/4)
1 (1 )
Min. dynamic gas
mbar
gauge
15.5
15.5
16.5
15.0
16.0
17.5
16.0
17.5
17.5
pressure required at boiler inlet in.w.g.
6.2
6.2
6.6
6.0
6.4
7.0
6.4
7.0
7.0
Electricity supply
230 Volts- single phase, 50 Hz, fuse 5 A
Nominal flue size (to BS. 835)
mm
150
150
175
175
200
200
200
250
250
in.
6
6
7
7
8
8
8
10
10
Diverter outlet socket
mm
184
184
213
213
238
238
238
288
288
internal diameter
in.
7.3
7.3
8.4
8.4
9.4
9.4
9.4
11.25
11.25
Length of burner bars (overall)
mm
377
497
497
617
617
737
737
737
837
in
14.8
19.5
19.5
24.3
24.3
29.0
29.0
29.1
33.7
Main burner injectors (3 off)
size, mm
3.4
3.82
4.12
4.57
4.86
5.2
5.3
5.6
5.8
Approximate dry weight
kg
210
265
265
330
330
395
395
395
490
lb.
463
584
584
727
727
871
871
871
1078
Water content
litre
22
30
30
37
37
45
45
45
53
gal.
4.8
6.6
6.6
8.2
8.2
9.9
9.9
9.9
11.5
Boiler
CXS 40 CXS 50 CXS 60 CXS 70 CXS 80 CXS 90 CXS 100 CXS 110 CXS120
Number of sections
3
4
4
5
5
6
6
6
7
Boiler Input
Gross
kW
31.5
37.5
45.1
52.8
60.4
68.1
75.0
82.1
89.9
Low Rate
Btu/hr x 1000
107.5
128.0
154.0
180.0
206.0
232.4
256.0
280.2
306.7
Nett
kW
28.4
33.8
40.6
47.5
54.4
61.4
67.6
74.0
81.0
Btu/hr x 1000
97.0
115.3
138.5
162.5
185.6
209.5
231.7
252.5
276.4
Boiler Input
Gross
kW
52.5
62.5
75.1
87.93
100.7
113.5
125.0
137.4
149.8
Btu/hr x 1000
179.1
213.3
256.2
300.0
343.6
387.3
426.5
468.8
511.2
High Rate
Nett
kW
47.3
56.3
67.7
79.2
90.7
102.3
112.6
123.8
135.0
Btu/hr x 1000
161.4
192.1
231.0
270.2
309.5
349.0
385.2
422.4
460.6
Boiler output
kW
42.0
50.0
60.08
70.34
80.56
90.8
100.0
110.0
120.0
High Rate
Btu/hr x 1000
143.3
170.6
205.0
240.0
274.9
309.8
341.2
375.3
409.4
Gas rate
m
3
/h
5.0
5.96
7.16
8.38
9.6
10.82
11.91
13.1
14.3
ft
3
/h
176.6
210.5
252.9
295.9
339.0
382.1
420.6
462.3
504.1
Approximate
4.5% CO
2
&100°C.
0.044
0.052
0.063
0.073
0.084
0.094
0.104
0.114
0.125
flue gas volume
m
3
/sec
in the secondary
4.5% CO
2
& 212°F.
flue of the chimney system
ft.
3
m
93
110
133
155
178
199
220
242
264
Manifold setting pressure
mbar
3.9
3.5
3.9
3.5
3.8
3.6
4.1
4.3
4.5
Low Rate
in.w.g.
1.6
1.4
1.6
1.4
1.5
1.4
1.6
1.7
1.8
Manifold setting pressure
mbar
11.7
10.5
12.2
10.4
10.3
11.2
11.5
11.8
12.0
High Rate
in.w.g.
4.7
4.2
4.9
4.2
4.1
4.5
4.6
4.7
4.8
Seasonal Efficiency (SEDBUK)*
[76.2]% [76.2]% [77.7]% [76.7]% [77.0]% [77.3]% [77.6]% [77.2]% [77.4]%
GENERAL
Table 1- Performance Data
Note.
To obtain gas consumption, divide gross heat input (kW) by a calorific value of 37.8 (MJ/m
3
)
To obtain gas consumption, divide net heat input (kW) by a calorific value of 34.0 (MJ/m
3
)
Table 2 - General Data
* This value is in the UK government's Standard Assessment Procedure (SAP) for energy rating of dwellings.
The test data from which it has been calculated has been certified by BGplc 0087.