2
Section
Page
1 Introduction ............................................... 2
2
General requirements .............................. 4
3
Installation - general ................................. 5
4
Installation - direct units ........................... 7
5
Installation - indirect units ........................ 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 your purchase of a Heatrae Sadia Megalife cistern fed vented water heater. The Megalife 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 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.
Direct units are supplied with two electric immersion heaters (depending on model), which incorporate an adjustable
thermostat and an over-temperature thermal cut-out.
Indirect units are supplied fitted with a thermostat and over-temperature thermal cut-out for the control of the primary
heat input to the Megalife from the boiler selected. All indirect models are also supplied with one electric immersion
heater for use as a back up heat source should the primary heat source be switched off.
Please read and understand these instructions before starting work.
Please leave this leaflet with the user following installation
1: Introduction
