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S-CB+60

Strebel S-CB 60, S-CB 100, S-CB 80, S-CB 120, S-CB PX 120 Installation & Operating Manual

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STREBEL
S-CB+ Cascade Kits
Models +60 - +80 - +100 - +120 – PX 120 - +150 - +180
Installation & Operating Manual
2x60 up to 12x180
Please read and understand before commencing installation and leave the manual with the customer for future reference.
2017-05-01 v1
INDEX
INTRODUCTION ....................................................................................................................................... 5
1.
2.CASCADE SELECTION TABLE .............................................................................................................. 6
3.MAIN DIMENSIONS.................................................................................................................................. 8
4.EXPLANATION OF PARTS AND GROUPS .......................................................................................... 10
5.FRAME GROUPS ................................................................................................................................... 11
6.MOUNTING THE BOILERS ON THE FRAME ....................................................................................... 13
7.MOUNTING THE CONNECTING SETS ................................................................................................. 14
8.MOUNTING THE HYDRAULIC GROUP ................................................................................................ 16
8.1 Hydraulic group for 2 boilers S-CB+ 60–120 and/or S-CB PX 120 ................................................. 17
8.2 Hydraulic groups for 3 and 4 boilers S-CB+ 60–120 and/or S-CB PX 120 ..................................... 18
8.3 Hydraulic groups for 2 and 3 boilers S-CB+ 150–180 ..................................................................... 19
8.4 Hydraulic group for 4 boilers S-CB+ 150–180 ................................................................................. 20
8.5 Hydraulic groups for 5 and 6 boilers S-CB+ 150–180 ..................................................................... 21
9.LOW VELOCITY HEADERS .................................................................................................................. 22
10.FLUE GAS AND AIR SUPPLY ............................................................................................................... 24
10.1 Individual or common flue systems ................................................................................................ 24
10.2 Individual flue systems .................................................................................................................... 24
10.3 Common flue systems .................................................................................................................... 24
10.4 Installation examples flue gas systems. ......................................................................................... 25
11.INSTALLATION ...................................................................................................................................... 26
12.PARAMETERS ....................................................................................................................................... 28
12.1 Parameter settings for cascaded boilers ........................................................................................ 28
12.2 Control panel / display unit ............................................................................................................. 29
12.3 Setting the parameters using the control panel .............................................................................. 30
12.4 Monitor screens .............................................................................................................................. 31
13.CASCADE CONTROL ............................................................................................................................ 32
13.1 Output control ................................................................................................................................. 32
13.2 Boiler sequence .............................................................................................................................. 32
14.OPTIONS ................................................................................................................................................ 33
3
4
1. Introduction
Figure 1 - Typical cascade configuration (S-cb PX 120 Above).
+
This Cascade manual is intended for the S-CB by Strebel Ltd. These boilers are available, in order of ascending output, as S-CB PX120,
+
150 and +180.
and the S-CB PX 120 wall-hung high efficiency CH boilers
+
60, +80, +100, +120,
The S-CB 60+ - 120+ (Not including the PX models) can be combined in one cascade set, as can the S-cb+ 150-180 boilers, but the S-CB PX 120 models can only be combined with the PX 120 model.
Strebel Ltd can supply standard cascade systems with mounting frame, piping and low loss headers for up to four boilers in the 60-120 range, four boilers in the PX 120 range and even six in the 150-180 range. For cascades with more boilers, a dedicated system must be designed.
The Strebel S-CB+ boilers are standard equipped with an internal cascade manager for up to twelve boilers. No extra controllers are necessary, only connect a 2-wire cable between all boilers.
The low-loss header can be fitted on the right-hand side as well as on the left-hand side without making any alterations to the delivered parts. The gas connection can also be fitted on one of both sides, independently from the side chosen for the low loss header.
To commission the cascade installation, it is necessary to set a number of parameters on the boilers, see chapter 12.1.
5
2. Cascade Selection Table
When selecting a cascade set-up, follow the next steps:
1. First determine the total required power of the set.
2. Determine the best number of boilers required (q. in the table(quantity)).
3. Choose one of the combinations in the table below (even more combinations are available).
4. Determine the required space for the set in the main dimensions’ tables and check this with the planned location.
5. Determine the required flue gas and air supply lines.
6. Choose all the required accessories in the Options-chapter.
Total
Kw
Input
120
140
160
180
200
220
240
260
280
300
320
330
340
360
380
400
420
440
450
460
480
510
540
600
630
660
690
720
Model q. Model q. Model q. Model q. Model q. Model q.
+
+
+
+
+
+
+
+
+
+
2 Boilers 3 Boilers 4 Boilers
60 2x
80 1x
80 2x
100 1x
100 2x
120 1x +100 1x
120 2x
150 2x
180 1x +150 1x
180 2x
+
60 1x
+
80 1x
+
60 3x
+
80 1x
+
80 2x
+
80 3x
+
100 1x
+
100 2x
+
100 3x
+
120 1x +100 2x
+
120 2x +100 1x +100 1x
+
120 3x
+
150 3x
+
180 1x +150 2x +120 4x
+
180 2x +150 1x
+
180 3x
+
60 2x
+
60 1x
+
60 4x
+
80 2x
+
80 1x
+
80 1x
+
80 2x
+
80 3x
+
80 4x
+
100 2
+
100 3x
+
100 4x
+
120 1x +100 3x
+
120 2x +100 2x
+
120 3x +100 1x
+
150 4x
+
180 1x +150 3x
+
180 2x +150 2x
+
180 3x +150 1x
+
180 4x
+
60 3x
+
60 2x
+
60 1x
+
80 3x
+
80 2x
+
80 1x
* Figures in this column are the gross calorific values in kW at 100% load
Table continues next page
6
Continuation from previous page
Total
5 Boilers 6 Boilers
Kw
Input
750 780 810 840 870 900 930 960 990 1020 1050 1080
Model q. Model q. Model q. Model q.
+
150 5x
+
180 1x +150 4x
+
180 2x +150 3x
+
180 3x +150 2x
+
180 4x +150 1x
+
180 5x
+
150 6x
+
180 1x +150 5x
+
180 2x +150 4x
+
180 3x +150 3x
+
180 4x +150 2x
+
180 5x +150 1x
+
180 6x
7
3. Main dimensions
boilers – for the S-CB PX boilers the connecting sets are different.
+
8
Figure 2. Cascade dimensions. The picture shows connecting sets for S-CB
1980
4 boilers
889
770
3045
3162
6 boilers
2489
5 boilers
290
791
768
2084
2393
440
DN 80 PN6 (3")
DN 80 PN6 (3")
R 2"
283
283
1980
4 boilers
4071
2607
2090
889
3516
355
2465
220
1000
DN 125 PN6 (5")
DN 125 PN6 (5")
770
220
1000
DN 125 PN6 (5")
DN 125 PN6 (5")
768
168
440
DN 100 PN6 (4")
DN 100 PN6 (4")
335
294
DN 80 (3")
335
294
DN 80 (3")
338
283
DN 80 (3")
1520
3 Boilers
1015
2 Boilers
120
+
60 -
+
265
789
766
1630
1914
190
1140
1358
787
487
DN 65 PN6 (2½")
DN 65 PN6 (2½")
766
436
R 1½"
RP 1½"
283
R 1½"
271
R 1¼"
283
3 boilers
283
2 boilers
180
+
150 -
+
290
766
165
1520
1630
1940
265
1015
1125
1408
766
440
DN 80 PN6 (3")
DN 80 PN6 (3")
144
487
DN 65 PN6 (2½")
DN 65 PN6 (2½")
R 2"
R 2"
338
283
338
283
S-CB Boilers
L1 (frame)
L2 (standards)
L3 (total)
L4 (open header)
H1 (gas)
H2 (open header)
H3 (open header)
D1 (Header Connections Sizes)
D2 (Header Connections Sizes)
D3 (gas)
A (gas)
B (headers)
S-CB Boilers
L1 (frame)
L2 (standards)
L3 (total)
L4 (open header)
H1 (gas)
H2 (open header)
H3 (open header)
D1 (Header Connections Sizes)
D2 (Header Connections Sizes)
D3 (gas)
A (gas)
B (headers)
9
Table 1. Main dimensions (mm and " ).
4. Explanation of parts and groups
Each cascade set exists of the following parts and groups:
1. The number of S-CB
2. The frame group (with locking plates) as determined by the number of boilers.
3. Connecting groups to connect the boilers to the hydraulic groups (one group for each boiler, each group existing of 1 gas, 1 flow and 1 return connecting set).
4. Hydraulic group, existing of 1 gas, 1 flow and 1 return header with all fixing and connecting parts.
5. Low-loss header to connect hydraulic group to your heating installation.
+
type boilers as selected in chapter 2.
S-CB+ Model
Frame group
-
Hydraulic Group
Connecting sets S-CB
+
Connecting sets S-CB PX
Low Velocity Header
Figure 3. Cascade parts and groups. For the S-CB PX boilers, the return connecting sets are different from the S-CB
10
+
.
5. Frame groups
Figure 4. Cascade frame groups for 1, 2, 3, 4, 5 and 6 boilers.
11
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