Hyco Speedflow SF05K Product Instruction Manual page 5

DIAGRAM B - Pressure above 4.2 bar
Pressure
relief valve
Hot
Cold
T piece
Speedflow
required for expansion
DIAGRAM C - Pressure below 4.2 bar and cold water draw off nearby
Pressure
relief valve
Hot Cold
T piece
Speedflow
required for expansion
DIAGRAM D - Pressure above 4.2 bar and cold water draw off nearby
Pressure
relief valve
Hot Cold
T piece
Speedflow
required for expansion
Nearest cold
To drain
Length of pipework
5 litres - 1.4m
10 litres - 2.8m
15 litres - 4.2m
Expansion
Nearest cold
vessel
Check
valve
To drain
Length of pipework
5 litres - 1.4m
10 litres - 2.8m
15 litres - 4.2m
Expansion
Nearest cold
vessel
Check
valve
To drain
Length of pipework
5 litres - 1.4m
10 litres - 2.8m
15 litres - 4.2m
Accessory SF4 needed (ie SF3 + SF5).
draw off
Pressure
reducing
valve
Accessory SF5 needed.
draw off
Accessory SF3 needed.
draw off
Pressure
reducing
valve
Service valve
Cold water mains
Service valve
Cold water mains
Service valve
Cold water mains
5