Heatrae Sadia Megaflo Eco Solar Series, Product Manual

Page: 13 / 40

Unvented Hot Water Cylinder
13
INST
ALLA
TION AND
COMMISSIONING INSTRUCTIONS (2)
22mm compression connection
Outlet to Megaflo
eco Solar
From cold water
Combination Valve
Take note of flow
direction
Pressure Relief Valve
discharge connection
Pressure Relief Valve
“TEE” ( incorporates
Check Valve )
Stopcock can be grouped with either
3 Bar Pressure Reducing Valve or
8 Bar Pressure Relief valve on the
inlet to either valve only
8 Bar Pressure Relief
Valve
3 Bar Pressure
Reducing Valve
Stopcock
8 Bar Pressure Relief Valve (See Figure 5 below)
This should be installed between the 3 bar Pressure Reducing Valve and the MEGAFLO Eco Solar cylinder. S hould a balanced pressure cold water draw off supply be
required for the cold water outlets, this should be taken off between the 3 bar Pressure Reducing Valve and 8 bar Pressure Relief Valve (see Figure 7, p. 14).
Branches to drinking water outlets should be taken before the Pressure Relief Valve to avoid the possibility of warm expanded water being
drawn from the tap.
Figure 5 - 8 Bar Pressure Relief Valve
Figure 6 - Valve set can be grouped two ways