Daikin INTERGAS Altherma NHY2KOMB28AA Installer's Reference Manual page 50

9 Installation
C (1) C (2) C
13 33
80/125 80/125 80/125
L1 (m) L1 (m) L1 (m)
29 29 10
Special remark regarding C : The maximum lengths for L1 and L2
53
are related to each other. First determine the length of L1; then
make use of the graph below to determine the maximum length of
L2. For example: if the length of L1 is 2 m, L2 can maximally be 8 m
long.
L2
11
10
9
8
7
L2=–1.8×L1+11.8
6
5
4
3
2
1
0
0 1 2 3 4 5
Multi-boiler installation
INFORMATION
All piping lengths in the tables below are maximum
equivalent piping lengths.
L1
L2
L1
C
43
C
C
5
83
6
L2 L1
L1
C
43
C
C
83
5
6
The horizontal flue MUST be installed under a 3° fall towards the
boiler (50 mm per metre) and MUST be supported with a minimum
of 1 bracket at each meter length. Best recommended position of the
bracket is just before the joint.
Installer reference guide
50
(4) C (3)
93 53
80 60/100 60
L2 (m) L1 (m) L2 (m)
25 6 1
1 10
L1
6 7
L1
43
5
L1
L2
43
5
INFORMATION
Flexible flue gas lines may NOT be used in horizontal
connection sections.
INFORMATION
The maximum lengths in the table below apply to each gas
boiler separately.
C (6)
83
Twin-80 60/100
L1+L2 (m) L1 (m)
80 10
Special remark regarding C
minimum diameters of the combined gas exhaust system.
Number of units
2
3
4
5
6
7
8
9
10
11
12
Special remark regarding C
minimum diameters of the combined gas exhaust/air intake system.
For NHY2KOMB28AA:
Number of Concentric
units
Gas Air intake
exhaust
2 135
3 157
4 166
5 175
6 184
7 193
8 201
9 210
10 219
11 228
12 237
13 246
14 255
15 264
16 272
17 281
18 290
19 299
20 308
For NHY2KOMB32AA:
Number of Concentric
units
Gas Air intake
exhaust
2 155
C (5)
43
80/125 Twin-80
L1 (m) L1+L2 (m)
29 80
: See the table below for the
83
Minimum Ø
130
150
180
200
220
230
250
270
280
290
300
: See the table below for the
43
Dual pipe
Gas Air intake
exhaust
253 135 214
295 157 249
311 166 263
328 175 278
345 184 292
362 193 306
376 201 318
393 210 332
410 219 347
427 228 361
444 237 375
461 246 389
478 255 404
494 264 418
509 272 431
526 281 445
543 290 459
560 299 473
577 308 488
Dual pipe
Gas Air intake
exhaust
291 155 246
EJHA04AAV3 + NHY2KOMB28+32AA
Daikin Altherma H Hybrid
4P556861-1A – 2019.05