Heatrae Sadia Megalife 100E Installation Manual Download Page 9

9

Fig: 04 - Electrical connection (indirect schematic) and temperature adjustment

L

N

1

2

3

Element Connections

1.5mm2 3 Core
HOFR sheathed 
cable

Indirect control
wiring

SPINDLE POSITIONS

= MINIMUM TEMP 10ºC

= MAXIMUM TEMP 72ºC

= APPROX 60 °C

ROTATE SPINDLE CLOCKWISE FOR TEMPERATURE INCREASE
AND COUNTER CLOCKWISE FOR TEMPERATURE DECREASE

THERMAL CUT-OUT RESET BUTTON

TEMPERATURE ADJUSTING
SPINDLE

Summary of Contents for Megalife 100E

Page 1: ...Megalife Vented Cistern Fed Water Heater Installation manual SOLAR INDIRECT DIRECT...

Page 2: ...ements of Building Regulation Part L The Megalife vented water heater must be fed from a cold water feed cistern located above the water heater and hot outlets to be served The unit must have a suitab...

Page 3: ...an 19mm internal diameter connecting the top of the hot water storage vessel to a point opne to the atmosphere obove and over the level of the water in the cold water storage sytem 3 13 In addition to...

Page 4: ...ns 1999 previously Water Byelaw 30 A vent pipe MUST be connected to the outlet of the heater This must rise continuously and be arranged to discharge into the feed cistern The vent pipe must have a mi...

Page 5: ...torage cistern The vent pipe must have a minimum bore diameter of 19mm No valves should be fitted to the vent pipe It is not acceptable to replace the vent pipe with a pressure relief device The hot w...

Page 6: ...6 OUTLET VENT HOT COLD HOT COLD HOT INLET WATER SUPPLY CISTERN TANK COLD MAINS SUPPLY MAX HEAD 40m VENT PIPE Stop Valve OVERFLOW PIPE Fig 02 Typical Vented Installation Schematic...

Page 7: ...rough the cable gland provided and the outer sheath of the cable firmly secured by tightening the screw on the cable gland Replace the immersion heater cover s before operating DO NOT operate the imme...

Page 8: ...to 72 C See Fig 04 page 9 If in any doubt contact a competent electrician 5 3 Wiring All electrical wiring should be carried out by a competent electrician and be in accordance with the latest I E E W...

Page 9: ...t Connections 1 5mm2 3 Core HOFR sheathed cable Indirect control wiring SPINDLE POSITIONS MINIMUM TEMP 10 C MAXIMUM TEMP 72 C APPROX 60 C ROTATE SPINDLE CLOCKWISE FOR TEMPERATURE INCREASE AND COUNTER...

Page 10: ...rogrammer Boiler Pump Zone valve HTG Cylinder terminal block Room stat Zone valve DHW Junction box 3 2 3 L N Bl GY W G O 1 2 3 HTG ON DHW ON Pump Boiler 3 port mid position valve DHW 2 port Programmer...

Page 11: ...mperature range of 10 C to 72 C see Fig 04 page 9 6 3 Indirect Units Fill the primary circuit following the boiler manufacturer s commissioning instructions To ensure the primary heating coil in the M...

Page 12: ...emperature of approx 60o C however it can be set to control between 10o C and 72o C this will usually have been done during installation Adjustments can only be made by opening the terminal cover DO N...

Page 13: ...the immersion heater Unscrew immersion heater backnut s and remove immersion heater from the unit A key spanner is supplied with the cylinder unit for easy removal tightening of the immersion heater s...

Page 14: ...rvicing 3 1 4 10 7 5 6 12 4 11 10 2 3 4 5 8 10 12 Fig 08 Spares Item Description Part Number 1 Immersion heater lower 95 606 984 2 Immersion heater upper 95 606 986 3 Immersion heater gasket 95 611 82...

Page 15: ...radually decreases 1 Outlet flow rate exceeds inlet flow to cold water feed cistern 2 Flow starvation caused by opening further outlets 1 Install higher flow float valve Consider larger cold water cis...

Page 16: ...eating times assume use of lower element only from cold through 45 C Table 03 Dimensions Type Model Reference Dimensions mm Primary Flow ltrs min 80 C 2 C Coil Rating kW Heat up Time mins Hot Water Ca...

Page 17: ...s B B C C C Storage volumes V in Litres 100 0 125 0 150 0 170 0 210 0 Standing loss in W 48 0 52 0 60 0 68 0 80 0 Name Megalife Model 100E 120E 150E 170E 210E Volume Litres 100 0 120 0 150 0 170 0 210...

Page 18: ...lement and thermostat pocket in Duplex stainless steel plate Tin plated Pipe connections All connections accept 22mm outside diameter pipe compression nuts and olives supplied Thread rate is 3 4 BSP m...

Page 19: ...ctory fitted parts have been removed for unauthorised repair or replacement vi Within 60 days of purchase the user completes and returns the certificate supplied along with proof of purchase to regist...

Page 20: ...roft Place Pinnacles Harlow Essex CM19 5BT T 0845 055 3811 E sales ewh co uk SPD Units 9 10 Hexagon Business Centre Springfield Road Hayes Middlesex UB4 0TY T 020 8606 3567 Parts Center T 0845 270 980...

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