4
Concord CXC -
Installation
Boiler
CXC 48
CXC 70
CXC 94
CXC 116
Number of sections
3
4
5
6
Flow tappings
Rc (in. BSP)
2 (2) - 1 at rear
Return tappings
Rc (in. BSP)
2 (2) - 1 at rear
Maximum static head
metres (feet)
45.7 (150)
Maximum pressure
bar (p.s.i.)
4.5 (65)
Gas inlet connection
Rc (in. BSP)
3/4 (3/4)
1 (1 )
Minimum dynamic gas
mbar
gauge
15.0
15.0
16.2
15.0
pressure required at the boiler inlet in.w.g.
6.0
6.0
6.5
6.0
Electricity supply
230 Volts- single phase, 50 Hz, fuse 5 A
Power Consumption
Watts
96
96
96
96
Nominal flue size (to BS. 835)
mm (in.)
152 (6)
152 (6)
152 (6)
152 (6)
Diverter outlet socket
mm
154
154
154
154
internal diameter
in
6
1/16
6
1/16
6
1/16
6
1/16
Length of burner bars (overall)
mm
377
497
617
737
in
14.8
19.5
24.3
29.0
Approx. dry weight
kg
298
350
442
494
lb
658
771
974
1090
Water contentm
litre
28
36
43
51
gal
6.2
8.0
9.5
11.2
Gas type
G20
I
2H
20 mbar
Boiler
CXC 48
CXC 70
CXC 94
CXC 116
Number of sections
3
4
4
5
Boiler output High Rate
kW
48.83
69.84
93.65
116.25
Condensing
Btu/h x 1000
166 600
238 300
319 500
396 600
Boiler output High Rate
kW
44.63
63.84
85.6
106.3
Non-Condensing
Btu/h x 1000
152 300
217 800
292 100
362 700
Boiler Input
Gross
kW
31.5
45.06
60.42
75
Low Rate
Btu/h x 1000
107 500
153 700
206 200
255 900
Nett
kW
28.4
40.6
54.44
67.58
Btu/h x 1000
96 900
138 500
185 800
230 600
Boiler Input
Gross
kW
52.5
75.1
100.7
125
Btu/h x 1000
179 100
256 200
343 600
426 500
High Rate
Nett
kW
47.3
67.67
90.73
112.6
Btu/h x 1000
161 400
230 900
309600
384 200
Gas rate
m
3
/h
4.4
7.0
9.4
11.6
ft
3
/h
172
247
331
411
Approx. flue gas 8.0% CO
2
& 60°C. m
3
/sec
0.023
0.033
0.045
0.056
volume (non condensing)
High rate
8.0% CO
2
& 140°F.
ft.
3
m
49
70
95
119
Manifold setting pressure
mbar
3.9
3.9
3.8
4.1
Low Rate
in.w.g.
1.6
1.6
1.5
1.6
Manifold setting pressure
mbar
11.7
11.8
10.7
11.5
High Rate
in.w.g.
4.7
4.7
4.3
4.6
Seasonal efficiency (SEDBUK)*
[85.8]%
[85.5]%
[86.2]%
[85.7]%
Electricity supply
230V, 50Hz, fuse 5A
Ignition
5 attempts followed by nonvolatile 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 3 - Boiler Control specification Maximum Flow Temperature 85
o
C
Table 2 - General Data
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
)
*The value is used in the UK government's Standard Assessment Procedure (SAP) for energy rating of dwellings.
The test data from which it has been calculated have been certified by BGplc 0087.
Summary of Contents for Concord CXC 116
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Page 38: ...38 Concord CXC Installation NOTES ...
