Installation Instructions

Specification
6 720 645 817 (2010/09)
23
2.1.2 Factory-prepared cascade Suprapur MKB ...
Boiler size (output in kW) Unit
MKB
240-3 A
MKB
320-3 A
MKB
400-3 A
MKB
480-3 A
MKB
560-3 A
Number of sections – 8 10 12 14 16
Rated output full load/partial load
temperature pair 50/30 °C
kW 240/31 320/42 400/62 480/75 560/87
Rated output full load/partial load
temperature pair 80/60 °C
kW 226/28 300/38 374/56.2 450/67.6 526/79.2
Rated heat input full load/partial load kW 232/29 310/38.8 386/57.9 464/69.6 542/81.3
Flue gas mass flow rate full load/partial
load temperature pair 50/30 °C
g/s 53.8/10.1 70.2/12.9 87.8/21.5 106.0/23.0 125.9/28.4
Flue gas mass flow rate full load/partial
load temperature pair 80/60 °C
g/s 53.7/11.1 70.2/14.1 89.3/21.6 107.4/25.0 125.4/33.4
CO
2
content with natural gas full load/
partial load
% 9.1/9.3
Minimum flue gas temperature full load/
partial load temperature pair 50/30 °C
°C 56/32 54/31 55/34 55/33 57/34
Minimum flue gas temperature full load/
partial load temperature pair 80/60 °C
°C < 75/57 < 75/56 < 75/59 < 75/58 < 75/59
Available draught, flue system Pa 100
Type (acc. to DVGW regulations) –
B
23
, B
23P
, C
53
, (C
63
), C
93
open flue and balanced flue operation
Gas
Fan – G1G 170
Gas valve –
Honeywell Kromschröder
VR 4615V VR 415VE CG 20 CG 25 CG 25
Gas restrictor diameter:
Natural gas H (G20),
Wobbe index 14.9 kWh/m
3
Natural gas L (Germany),
Wobbe index 12.8 kWh/m
3
mm
mm
15.7
15.0
Gas
restrictor
not fitted
14.2
14.2
13.6
13.6
12.6
12.6
Heating water circuit
Boiler water capacity l 32 40 48 54 60
Pressure drop on heating water side mbar Æ Fig. 15, page 29
Maximum flow temperature °C 85
Safety temp. for high limit safety cut-out °C 100
Permissible operating pressure bar 4
Electrical data
IP rating – IP X0D
Power supply V/Hz 230/50
Power consumption full load/partial load W 300/40 380/45 460/50 540/50 660/50
Appliance dimensions and weight
Handling dimensions
Width × Depth × Height
mm
851 × 612
× 1400
1059 × 612
× 1400
1059 × 612
× 1400
1267 × 612
× 1400
1267 × 612
× 1400
Weight kg 410 480 530 600 660
Tab. 11 Specification