Hydraulic Resistance; C 340 Technical Data - DeDietrich C 340 Series Installation And User Manual

13 Technical specifications
17 Return temperature sensor
18 Heat exchanger temperature sensor
19 Flow temperature sensor
20 Flue gas temperature sensor
13.3

Hydraulic resistance

Tab.134 Hydraulic resistance
Heat exchanger size
5 sections:
C 340 280
C 640 560
6 sections:
C 340 350
C 640 700
7 sections:
C 340 430
C 640 860
8 sections:
C 340 500
C 640 1000
9 sections:
C 340 570
C 640 1140
10 sections:
C 340 650
C 640 1300
13.4

C 340 technical data

Tab.135 General
C 340
Number of sections
Nominal output
Nominal output
Nominal output
Nominal input
Nominal input
Full load central heating ef­
ficiency
Full load central heating ef­
ficiency
Full load central heating ef­
ficiency
Min load central heating ef­
ficiency
Part load central heating ef­
ficiency
Full load central heating ef­
ficiency
178 C 340 / C 640
∆T 10 ∆T 11 ∆T 12
°C °C °C
452 374 314
440 364 306
480 397 333
440 364 306
500 413 347
520 430 361
P
80/60 °C kW
n
P
70/50 °C kW
nc
P
50/30 °C kW
nc
Q ( H ) kW
nh i
Q H
( ) kW
nh s
P H
( ) 80/60 °C %
n i
P ( H ) 70/50 °C %
n i
H
50/30 °C %
i
H
Return temper­ %
i
ature 60 °C
P H
( ) Return %
n i
temperature
30 °C
P H
( ) 80/60 °C %
n s
21 Valve proving system (VPS)
22 Gas pressure switch (GPS)
23 Fan PWM signal
Hydraulic resistance in mbar
∆T 13 ∆T 14 ∆T 15
°C °C °C
267 231 201
260 224 196
284 245 213
260 224 196
296 255 222
308 265 231
280 350
5 6
min 51.1 64.8
max 260.7 326.7
(1)
max 262.0 328.0
(1)
max 278.8 350.3
(1)
min 54 68
266 333
max
(1)
min 60 75.6
max 295.6 370.0
(1)
98.0 98.1
98.5 98.5
104.8 105.2
94.7 95.3
109.2 109.0
88.2 88.3
∆T 16 ∆T 17 ∆T 18
°C °C °C
177 156 140
172 152 136
188 166 148
172 152 136
195 173 154
203 180 160
430 500 570
7 8 9
78.6 91.5 105.5
394.8 461.0 530.4
396.4 462.4 532.0
424.5 497.1 573.5
82 95 109
402 469 539
91.1 105.6 121.1
446.7 521.1 598.9
98.2 98.3 98.4
98.6 98.6 98.7
105.6 106.0 106.4
95.8 96.3 96.8
108.8 108.6 108.3
88.4 88.5 88.6
7762666 - v.02 - 29092020
∆T 19 ∆T 20
°C °C
125 113
122 110
133 120
122 110
139 125
144 130
650
10
118.7
600.9
602.1
651.5
122
610
135.6
677.8
98.5
98.7
106.8
97.3
108.1
88.7