Heatrae Sadia MEGAflo Installation Manual page 8

between the Cold Water Combination Valve and the Expansion Core Unit (see Figure 5). The
Expansion Valve connection on the Cold Water Combination Valve should remain blanked off
using the blanking nut and seal provided. Ensure the discharge from the Expansion Valve can
be correctly installed.
Figure 2 - Cold Water Combination Valve
Figure 3 - Expansion Core Unit
8 8
MAINS IN
22MM
COMPRESSION
CONNECTION
TAKE NOTE OF
FLOW DIRECTION
PRESSURE REDUCING
VALVE HOUSING
PRESSURE REDUCING
VALVE CARTRIDGE
(3 BAR)
MOUNTING NUT
FROM COLD
WATER
COMBINATION
VALVE
22MM COMPRESSION
CONNECTION
TAKE NOTE OF
FLOW DIRECTION
ISOLATING VALVE
EXPANSION VALVE
CONNECTION (IF
ONE-PIECE VALVE
IS REQUIRED)
OUTLET TO
MEGAFLO
22MM
COMPRESSION
CONNECTION
EXPANSION RELIEF VALVE
EXPANSION RELIEF VALVE
DISCHARGE CONNECTION
22MM COMPRESSION
CONNECTION
OUTLET TO
MEGAFLO
EXPANSION CORE UNIT
(INCORPORATES
CHECK VALVE)