Megalife Product Guide
2
Section
Page
1 Introduction ............................................... 2
2
General Requirements ............................. 4
3
Installation - General ................................ 5
4
Installation - Solar ..................................... 7
5
Installation - Auxillary Coil ........................ 8
6 Commissioning ......................................... 11
7
User Instructions ....................................... 12
8 Maintenance ............................................. 13
9
Fault Finding & Servicing ......................... 14
10
Dimensions & Specifications ................... 16
11 Guarantee .................................................. 19
12 Contacts .................................................... 20
Contents
Thank you for purchasing a Heatrae Sadia Megalife cistern fed solar vented water heater. The Megalife solar is manufactured
in the UK from top quality materials and meets all the latest relevant safety and constructional standards. The high grade
Duplex stainless steel cylinder offers exceptional strength and corrosion resistance and is backed by a 25 year cylinder
guarantee. Its performance and insulation levels meet the latest requirements of Building Regulation Part L.
The Megalife solar 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 suitable vent pipe installed on the outlet that is arranged to discharge
over the cold water feed cistern.
The Megalife solar water heaters are supplied with a dedicated solar coil in the lower part of the cylinder which must be
connected to an indirect solar primary circuit. Various controls will be necessary to integrate the Megalife solar cylinder
into a solar primary circuit which are not supplied with the Megalife. Ensure that manufacturer’s instructions for any
ancillary solar primary circuit components are followed to ensure the correct integration of the Megalife solar into the
solar primary circuit.
In addition to the solar primary coil heat exchanger units also have an additional heat exchanger coil located in the
upper section of the cylinder for connection to an auxillary heat source such as a gas, oil or electric boiler. The units are
supplied fitted with a thermostat and over-temperature thermal cut-out for the control of the auxillary primary heat input
to the Megalife solar from the boiler selected. All models are supplied with one electric immersion heater for use as a
back up heat source should the auxillary primary heat source be switched off.
1: Introduction
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