The central heating system should not require a bypass, unless all radiators are
fitted with TRV's or when the system controls could allow the boiler and pump to
operate when there is no flow. Where a bypass has to be fitted, the bypass must be
placed at least 1.5 metres away from the boiler.
The '
abc®
' control also monitors the temperature difference across the flow and
return connections and the rate of temperature rise and will automatically regulate
the boiler output to ensure that it remains operational for as long as possible without
the need to 'lock out' requiring a manual reset.
2.3.2 System Pump
The system pump must be wired directly to the boiler terminal strip and be capable
of providing the nominal flow at design conditions against the combined resistance of
the boiler and system.
Required water flow at ∆T = 15°C and 11°C
Type
∆T 15
°C
∆T
11°C
m3/h
l/s
m3/h
l/s
12v
0,7
0,19
0,91
0,25
15v
0,88
0,24
1,14
0,32
18v
1,05
0,29
1,37
0,38
24v
1,41
0,39
1,82
0,51
30v
1,76
0,49
2,28
0,63
table 01 Required water flow
2.3.3 Pressure loss of the boiler
1.
Avanta 12v, 15v, 18v
2.
Avanta 24v, 30v
Содержание Avanta 12v
Страница 15: ...fig 05 Mounting the Avanta 59970 LT GB W7H 002 page 8 2 3 Water side connections 2 3 1 Water flow ...
Страница 34: ...fig 16 Connecting external controls R000158 A page 18 ...
Страница 35: ......
Страница 63: ...fig 42 Read out settings LT AL W7H 000 046 ...
Страница 68: ...fig 43 Change parameters in service level LT AL W7H 000 047 ...
Страница 70: ...fig 44 Change boiler output LT AL W7H 000 048 ...
Страница 87: ...fig 59 Assembling the boiler 59970LTGBW7H031 page 44 4 ERRORS 4 1 General ...
Страница 96: ......
Страница 99: ...fig 62 Exploded view Remeha Avanta 59970EVGBW7H010 ...
Страница 108: ...page 60 ...
Страница 109: ...page 61 ...