Worcester Greenstar 8000 Life GR8300iW 30 R

Pre-Installation
11
Greenstar 8000 Life – 6720883866 (2019/04)
Open vent primary system - Cylinder and 2 x central heating zones:
Typical S-Plan Plus example
• The cylinder return must be the last connection on the common
return pipe to prevent reverse circulation.
Fig. 5 Cylinder and 2 x heating zones
[1] Appliance
[2] Zone valves
[3] Domestic hot water cylinder
[4] Circulation pump
[5] Feed and expansion tank
Open vent primary system - 3-way valve, cylinder and central
heating zone:
Typical Y-Plan example
• The cylinder return must be the last connection on the common
return pipe to prevent reverse circulation.
Fig. 6 3-Way valve, cylinder and heating zone
[1] Appliance
[2] 3-Way zone valve
[3] Domestic hot water cylinder
[4] Circulation pump
[5] Feed and expansion tank
Converted to sealed primary system - Cylinder and central heating
zone:
Typical S-Plan example
• The cylinder return must be the last connection on the common
return pipe to prevent reverse circulation.
Fig. 7 Cylinder and heating zone
[1] Appliance
[2] Zone valves
[3] Domestic hot water cylinder
[4] Circulation pump
[6] Sealed system kit
• Expansion vessel
• Pressure gauge
• 3 bar pressure relief valve
Converted to sealed primary system - Cylinder and 2 x central
heating zones:
Typical S-Plan Plus example
• The cylinder return must be the last connection on the common
return pipe to prevent reverse circulation.
Fig. 8 Cylinder and 2 x heating zones
[1] Appliance
[2] Zone valves
[3] Domestic hot water cylinder
[4] Circulation pump
[6] Sealed system kit
• Expansion vessel
• Pressure gauge
• 3 bar pressure relief valve
1
4
2
2
2
3
5
0010021236-001
1
4
2
3
5
0010021237-001
1
4
6
2
2
3
0010021238-001
1
4
6
2
2
2
3
0010021239-001