MEGAFLO Eco - Page 24

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Unvented Hot Water Cylinder

INSTALLATION AND

COMMISSIONING INSTRUCTIONS (2)

Main Page

Contents2
Direct, Exploded View3
Component Checklist4
General Requirements5
Storage and Handling5
Siting the MEGAFLO Eco5
Schematic Installation Details5
Unvented Hot Water Cylinder5
Outlet / Terminal Fittings6
Water Supply6
Electrical Supply6
The Environment6
Specifications and Dimensions7
Thermal Insulation7
Pipe Connections7
Safety Features7
MEGAFLO Eco Direct8
MEGAFLO Eco Indirect8
Dimensions9
Direct Units - Technical Specification9
Indirect Units - Technical Specification9
General Installation12
Pipe Fittings12
Cold Water Supply12
3 Bar Pressure Reducing Valve12
8 Bar Pressure Relief Valve13
Valve Set Can be Grouped Two Ways13
Drain Tap15
Outlet Pipework15
Secondary Circulation15
Direct Models15
T&P Relief Valve Insulation16
Warnings16
Discharge Pipes from Safety Devices17
Discharge Pipework18
G3 Requirement18
Schematic Discharge Pipe Arrangement18
Worked Example of Discharge Pipe Sizing19
Boiler Selection19
Indirect Thermal Cut-Out and 2-Port Motorised Valve19
Primary Connections to Indirect Units19
Wiring20
Heating System Controls20
Fitting Additional Immersion Heater20
Indirect Wiring Layout20
2 Port Valve in Conjunction with a 3 Port MID-Position Valve System21
2 X 2 Port Valve System21
Wiring Centre21
To Remove the Immersion Heater22
Access to Control Unit22
Removing the Control Cover22
Replacing the Control Cover22
Safety23
Schematic Wiring Diagram23
Adjustment Details23
Indirect, Exploded View25
Maintenance Requirements26
Check Operation of Safety Valves26
Clean the Strainer26
Draining the MEGAFLO Eco Unit26
Fault Finding27
Servicing28
Spares28
Exploded View of 3 Bar Inlet Control Valve29
Exploded View of 8 Bar Pressure Relief Valve29
Exploded View of Stopcock29
Indirect Control Assembly30
Indirect Exploded View30
Direct Exploded View31
Direct Control Assembly31
Spares Stockists34
User Instructions36
Operational Faults36
Customer Service40

MEGAFLO Eco - Page 24

Table of Contents