Publicité
1.4.5
Unvented package installation, DWH 200, DWH 300
Return line
heating system
Supply line
heating system
Heat pump
Figure 5.
The principal installation solution of the unvented package on a DWH.
Position
Name
1
Factory fitted combined Temperature and Pressure Relief Valve
2
Expansion Vessel
3
Flexible hose
5
Unvented manifold assembly: Pressure Reducing Valve, Safety Relief Valve,
Non-return Valve
6
Shut-off Valve
7
Double Check Valve with Shut-off Valve
8
Flexible hose
9
Safety Relief Valve
10
Expansion Vessel Heating System
11
Strainer
*
) The water heater tank in DWH is factory fitted with a Temperature and Pressure Relief Valve. The connec-
tion from this valve must not be used for other purposes other than discharge pipe connection. Please see
next page for Discharge Pipe Arrangement.
E
Note! No valve should be fitted between the safety relief valve and the storage cylinder.
8
All manuals and user guides at all-guides.com
9
10
11
1
DWH 200
DWH 300
VMBNB72J
HW to
CW to
house
house
6
5
3
Unvented manifold assembly
(see figure 1)
2
*
6
8
7
6
CW
3
Publicité
