5
Concord CXSD/H -
Installation & Servicing
GENERAL
2
CLEARANCES & DIMENSIONS
Boiler Size
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
Front clearance
mm (in)
750 (29
1/2
)
Rear clearance
mm (in)
0
0
0
150 (6)
150 (6)
300 (12) 300 (12) 300 (12) 300 (12)
Side clearance
mm (in)
50 (2)
50 (2)
50 (2)
50 (2)
50 (2)
100 (4)
100 (4)
100 (4)
100 (4)
Dimension
A
m m
750
882
882
1042
1042
1212
1212
1385
1385
in
29
1/2
34
3/4
34
3/4
41
41
47
3/4
47
3/4
54
1/2
54
1/2
Dimension
B
m m
108
108
122
122
135
190
190
160
160
in
4
1/4
4
1/4
4
7/8
4
7/8
5
3/8
7
1/2
7
1/2
6
1/4
6
1/4
Dimension
C
m m
931
931
931
931
931
893
893
893
893
in
36
5/8
36
5/8
36
5/8
36
5/8
36
5/8
35
3/16
35
3/16
35
3/16
35
3/16
Dimension
D
m m
177
187
187
224
224
271
271
321
321
in
7
7
3/8
7
3/8
8
7/8
8
7/8
10
5/8
10
5/8
12
5/8
12
5/8
Dimension
E
m m
69
79
79
116
116
163
163
213
213
in
2
3/4
3
1/8
3
1/8
4
5/8
4
5/8
6
1/2
6
1/2
8
3/8
8
3/8
Table 4
POSITION OF BOILER
Minimum clearances required
from walls or other fixed objects
to allow for the free access of
combustion air are shown in
Table 4 above.
However, for maintenance
purposes we suggest a
minimum rear clearance of
50mm.
Any combustible material
adjacent to the boiler and its flue
system must be so placed or
shielded as to ensure that its
temperature does not exceed 65
0
C (150
0
F).
MULTIPLE BOILER INSTALLATIONS
The minimum installation clearances must
conform to the dimensions given below:
CXSD 40/H, 50/H, 60/H, 70/H & 80/H
Clearance between boilers = 50mm
Clearance at both ends of the multiple installation = 50mm
*
CXSD 90/H, 100/H, 110/H & 120/H
Clearance between boilers = 100mm
Clearance at both ends of the multiple installation = 100mm
*
Rear clearance:
sufficient clearance should be given at the
rear of the boiler for connection of gas and water pipework.
*
Additional clearance is required for access at either end of
the installation.
10
9
8
7
6
5
4
3
2
1
0
10
20
30
40
50
60
70
80
90
100
12
CON5214
Example A
Example B
CXSD
110/H
& CXSD
120/H
CXSD
100/H
& CXSD
90/H
CXSD
80/H
& CXSD
70/H
CXSD
40/H
CXSD
60/H
& CXSD
50/H
Heat
Load
During
Pump
Overrun
(kW)
Water Volume in Circuit during Pump Overrun (litres)
Relationship between load and water volume for the
minimum capacity of water circuit during the 6 minute
pump overrun period for different boiler outputs.
Graph 1 - Heat Load / Water Volume
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
190 200
160 170 180
120
110
100
90
80
70
60
50
40
30
20
10
0
Graph 2 - Hydraulic Resistance
Hydraulic
Resistance
(mbar)
Flow (litres/min)
11
o
C(20
o
F)
-CXSD
40/H
11
o
C(20
o
F)
-CXSD
50/H
11
o
C(20
o
F)
-CXSD
60/H
11
o
C(20
o
F)
-CXSD
70/H
11
o
C(20
o
F)
-CXSD
80/H
11
o
C(20
o
F)
-CXSD
90/H
11
o
C(20
o
F)
-CXSD
100/H
11
o
C(20
o
F)
-CXSD
110/H
11
o
C(20
o
F)
-CXSD
120/H
403-1
CON5215
Summary of Contents for Concord CXSD 40/H
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