Concord ESi -
Installation and Servicing
5
GENERAL
2
DIMENSIONS
Table 3
B
Hydraulic connections must be made on one side only (either on the right or on the left side), but never on opposite sides.
The connections may be welded.
Gas inlet connection F may be made either from the right or the left side of the boiler.
LOW TEMPERATURE OPERATION
The flow temperature from the Concord ESi boiler can be reduced to a minimum of 40ºC dependent on the heat load requirement
of the system. This is permissible in those situations where low modulated temperature operation is achieved using weather
compensation. It is NOT permissible to design the system to run the boiler constantly at 40ºC flow. The return temperature must
not be less than 35ºC.
Boiler Size
ESi 140
ESi 160
ESi 180
ESi 200
ESi 220
ESi 260
ESi 300
ESi 340
ESi 380
No. of sections
8
9
10
11
12
14
16
18
20
Dimension
A
1362
1362
1362
1362
1362
1412
1412
1412
1462
Dimension
B
970
1058
1146
1234
1322
1498
1674
1850
2026
Dimension
ø
C
250
250
300
300
300
350
350
350
400
Dimension
D
632
720
808
896
984
1160
1336
1512
1688
Dimension
E
165
165
165
165
165
190
190
190
220
Dimension ø
F
Rp 1
Rp 1
Rp 1
Rp 1
Rp 1
Rp 1
1
/
4
Rp 1
1
/
4
Rp 1
1
/
4
Rp 1
1
/
2
Dimension
G
447
491
535
579
623
704
792
880
963
Dimension
H
445
445
445
445
445
454
454
454
507
Dimension
J
1094
1094
1094
1094
1094
1194
1194
1194
1194
Dimension
K
1406
1406
1406
1406
1406
1406
1406
1406
1406