5
Boiler Specification 2
Instructions for installation and servicing ecoMAX
5
Boiler Specification 2
2.1 Technical data (1)
ecoMAX
ecoMAX
ecoMAX
Units
824/2 E
828/2 E
835 E
Maximum CH heat input (G 20) (net)
18.4
22.4
27.0
kW
Maximum CH heat input (G 31) (net)
18.4
22.4
27.0
kW
CH heat output range
80 °C flow/60 °C return
11.0 – 18.4
13.4 – 22.4
10.5 – 27.0
kW
50 °C flow/30 °C return
11.6 – 19.4
14.1 – 23.6
11.0 – 28.4
kW
SEDBUK
A
A
A
Band
SAP Seasonal Efficiency
91.1
91.1
91.1
%
Maximum DHW heat input (net)
23.0
28.0
35.0
kW
Maximum DHW output
23.0
28.0
35.0
kW
DHW flow rate
∆
T = 35 K rise
9.4
11.5
14.3
l/min
Appr. DHW flow rate at factory set temp. rise (DT = 42 °C)
7.9
9.6
11.9
l/min
Mains water pressure required for max. flow rate
0.5
0.5
0.5
bar
Minimum water flow rate
1.5
1.5
1.5
l/min
Mains water pressure required for min. flow rate
0.2
0.2
0.2
bar
Maximum inlet water pressure
10
10
10
bar
Inlet gas working pressure required
(natural gas)
20
20
20
mbar
Inlet gas working pressure required
(Propane)
37
37
37
mbar
Gas supply (G20) Gross CV (s.t.)
37.8
37.8
37.8
MJ/m
3
Gas supply (G31) Gross CV (s.t.)
95.65
95.65
95.65
MJ/m
3
Gas rate (natural gas) max.
2.43
2.96
3.7
m3/h
Gas rate (Propane) max.
1.78
2.18
2.7
kg/h
CH temperature flow range
30 – 85
30 – 85
30 – 85
°C
Minimum CH water flow (for 20 °C rise)
790
960
1160
l/h
Pump pressure available
0.25
0.25
0.25
bar
10 l expansion vessel pre–charge pressure
0.75
0.75
0.75
bar
Maximum CH system pressure
2.5
2.5
2.5
bar
Connections heating flow/return
22
22
22
mm
Gas inlet
15
15
15
mm
Pressure relief discharge pipework (min.)
15
15
15
mm
Condensate drain (min. internal drain)
19
19
19
mm
Weight
40
41
48
kg
Primary water content
1.8
2.0
2.4
l
Volume of condensate (max.)
2.1
2.5
3.3
l/h
Maximum flue gas temperature
70
70
70
°C
Electrical supply voltage
230/50
230/50
230/50
V ~/Hz
Internal fuse (slow) main voltage
4
4
4
A
Internal fuse (slow) low voltage
4
4
4
A
Power input
115
115
140
W
83 41 77_12 GB04.04.qxd 22.09.2004 12:34 Uhr Seite 5
