Boiler Specification 2 - Vaillant ecoMAX SERIES Instructions For Installation And Servicing

Boiler Specification 2

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