General Requirements - Heatrae Sadia Megalife 100E Installation Manual

2: General Requirements

IMPORTANT : PLEASE READ AND UNDERSTAND THESE INSTRUCTIONS BEFORE INSTALLING THE MEGALIFE
WATER HEATER. INCORRECT INSTALLATION MAY INVALIDATE YOUR GUARANTEE.
THIS APPLIANCE CAN BE USED BY CHILDREN AGED FROM 8 YEARS AND ABOVE AND PERSONS WITH REDUCED
PHYSICAL SENSORY OR MENTAL CAPABILITIES OR LACK OF EXPERIENCE AND KNOWLEDGE IF THEY HAVE
BEEN GIVEN SUPERVISORY OR INSTRUCTION CONCERNING USE OF THE APPLIANCE IN A SAFE WAY AND
UNDERSTAND THE HAZARDS INVOLVED. CHILDREN SHALL NOT PLAY WITH THE APPLIANCE. CLEANING AND
USER MAINTENANCE SHALL NOT BE MADE BY CHILDREN WITHOUT SUPERVISION.
WARNING: Do not switch on if there is a possibility that the water in the heater is frozen.
THE MEGALIFE MUST BE FED FROM A COLD WATER FEED CISTERN. A SUITABLE VENT PIPE MUST BE
INSTALLED.
2.1 Siting the Megalife (see Fig. 01, below)
The Megalife range of water heaters must only be installed as CISTERN FED VENTED units supplied from a cold
water feed cistern at an appropriate head height above the heater and outlet points. Ensure that the feed cistern
height above the heater does not exceed its maximum rated pressure of 40 metres (4 bar). The feed cistern should
comply with the requirements of Schedule 2 Section 7 Paragraph 16: Cold Water Services to the Water Supply (Water
Fittings) Regulations 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 minimum bore diameter of 19mm.
DO NOT connect directly to the mains water supply.
DO NOT connect any pressure relief device or other valves to the vent pipe of this heater.
DO NOT install in a position where the heater is liable to be subject to frost conditions.
The Megalife unit must be vertically floor mounted or on a suitable plinth. It can be placed anywhere convenient
provided the vent pipe can be correctly installed. Ensure that the floor or supporting plinth is of sufficient strength
to support the "full" weight of the unit (refer to table 04 on page 17 for unit weights). Ideally the heater should be
sited close to the point where hot water is required most frequently. Pipe runs should be kept as short as possible
for maximum economy. Access to associated plumbing connections, immersion heaters and indirect controls should
be possible for servicing and maintenance of the system.
2.2 Outlet/Terminal Fittings (taps, etc.)
The Megalife can be used in conjunction with most types of terminal fittings. In a cistern fed system the pressure at
the outlet fittings is due to the head height of the cold water feed cistern above the outlet point. When choosing
suitable fittings ensure they will operate at the pressure available at the outlet point.
Fig. 01: Siting the Unit
4
WALL
Min 250mm
Min 250mm