2
Concord CXSD/H -
Installation & Servicing
GENERAL
Boiler
CXSD 40/H
CXSD 50/H
CXSD 60/H
CXSD 70/H
CXSD 80/H
CXSD 90/H CXSD 100/H
CXSD 110/H
CXSD 120/H
Number of sections
3
4
4
5
5
6
6
7
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)
m m
150
150
175
175
200
200
200
250
250
in.
6
6
7
7
8
8
8
10
10
Diverter outlet socket
m m
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
11.2
11.2
Length of burner bars (overall)
m m
377
497
497
617
617
737
737
837
837
in
14.8
19.5
19.5
24.3
24.3
29.0
29.0
33.7
33.7
Main burner injectors (3 off)
size, mm
3.4
3.82
4.12
4.57
4.86
5.2
5.3
5.5
5.6
Approximate dry weight
kg
210
265
265
330
330
395
395
490
490
lb.
463
584
584
727
727
871
871
1078
1078
Water content
litre
22
30
30
37
37
45
45
53
53
gal.
4.8
6.6
6.6
8.2
8.2
9.9
9.9
11.5
11.5
Table 3 - Boiler Control specification
Maximum Flow temperature 85
o
C
Table 2 - General Data
Electricity supply
230V, 50Hz, fuse 5A
Ignition
5 attempts followed by non-volatile lockout.
Gas valve
High/Low and Off
Gas safety time
Maximum of 10 secs with 5 attempts with one min. between attempts.
Safety check
The control de-energises every 4 hours to check internal control functions.
Pump
Pump overrun operates if the flow temperature is greater than 75
o
C.
Boiler thermostat
The boiler thermostat hysteresis is a maximum of 3
o
C.
Table 1- Performance Data
Boiler
CXSD 40/H
CXSD 50/H
CXSD 60/H
CXSD 70/H
CXSD 80/H
CXSD 90/H
CXSD 100/H
CXSD 110/H
CXSD 120/H
Boiler Input
Gross
kW
33.8
42.2
50.7
59.1
67.6
76.0
84.5
92.9
101.3
Low Rate
Btu/hr x 1000 115.3
144.1
172.9
201.7
230.5
259.3
288.2
317.0
345.8
Nett
kW
30.4
38.0
45.7
53.3
60.9
68.5
76.1
83.7
91.3
Btu/hr x 1000 103.8
129.8
155.8
181.7
207.7
233.6
259.6
285.6
311.5
Boiler Input
Gross
kW
48.3
60.3
72.4
84.5
96.5
108.6
120.7
132.7
144.8
High Rate
Btu/hr x 1000 164.7
205.8
247.0
288.2
329.3
370.5
411.7
452.8
494.0
Nett
kW
43.5
54.3
65.2
76.1
87.0
97.8
108.7
119.6
130.4
Btu/hr x 1000 148.3
185.4
222.5
259.6
296.7
333.8
370.9
408.0
445.0
Boiler output
kW
40
50
60
70
80
90
100
110
120
High Rate
Btu/hr x 1000 136.5
170.6
204.7
238.8
273.0
307.1
341.2
375.3
409.4
Gas rate
High
m
3
/h
4.60
5.75
6.90
8.05
9.20
10.35
11.50
12.64
13.79
ft
3
/h 162.4
203.0
243.6
284.2
324.8
365.4
406.0
446.6
487.1
Approx. flue
4.5% CO
2
&100°C.m
3
/s
0.04
0.05
0.06
0.07
0.08
0.09
0.10
0.11
0.12
gas volume
4.5% CO
2
& 212°F. ft.
3
/m
85
106
127
148
170
191
212
233
254
Manifold setting pressure
mbar
9.7
9.8
10.2
10.0
9.3
9.6
10.7
11.1
12.1
High
in.w.g.
3.9
3.9
4.1
4.0
3.7
3.8
4.3
4.4
4.8
Manifold setting pressure
mbar
4.8
4.8
5.0
4.9
4.6
4.7
5.2
5.4
5.9
Low
in.w.g.
1.9
1.9
2.0
2.0
1.8
1.9
2.1
2.2
2.4
Part load efficiency (Gross)
%
81.9
81.6
82.7
82.0
82.5
82.5
83.2
83.4
82.4
Seasonal efficiency (SEDBUK)*
[80.4]% [80.3]% [80.4]% [80.4]% [80.4]% [80.4]% [80.4]% [80.4]% [80.4]%
* 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 Advantica 0087.
Note.
To obtain gas consumption in l/s, divide gross heat input (kW) by a calorific value of 37.8 (MJ/m
3
).
Summary of Contents for Concord CXSD 40/H
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