Heatrae Sadia Electromax Installation Guide - Advanced Water
Heatrae Sadia Electromax Installation Guide - Advanced Water
Heatrae Sadia Electromax Installation Guide - Advanced Water
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5.8 Primary (Central Heating) Pipework<br />
<br />
and return must be in 22mm o/dia. pipe.<br />
<br />
<br />
to enable the <strong>Electromax</strong> boiler to be isolated<br />
from the primary circuit for maintenance and<br />
servicing. Connections to the isolating valves<br />
are 22mm compression.<br />
Conventional radiator based central heating<br />
design considerations should be made<br />
in selecting the radiators and circulating<br />
pipework sizes. The maximum output from<br />
the <strong>Electromax</strong> boiler is 9kW, ensure the<br />
radiator load does not exceed this. NOTE:<br />
The <strong>Electromax</strong> boiler is dedicated to the<br />
space heating only, the domestic hot water<br />
is heated by separate immersion heaters,<br />
so there is no requirement to allow a hot<br />
water loading factor in designing the primary<br />
system.<br />
<br />
<br />
following installation.<br />
A filling loop is provided within the<br />
<strong>Electromax</strong> casing to fill the primary<br />
circuit directly from the cold water supply.<br />
When the system is full and correctly<br />
<br />
loop should be disconnected from the<br />
primary circuit.<br />
Diagram 12<br />
Primary Connections<br />
Primary Flow<br />
Isolating Valve<br />
Filling Loop<br />
Flexible<br />
Connection<br />
<br />
<br />
Primary Return<br />
Isolating Valve<br />
Hot <strong>Water</strong><br />
Outlet<br />
Connection<br />
Filling Loop<br />
Isolating Valve<br />
(Primary Side)<br />
Filling Loop<br />
Isolating Valve<br />
(Cold <strong>Water</strong> Side)<br />
Cold <strong>Water</strong><br />
Inlet Connection<br />
18 <strong>Installation</strong> & Servicing Instructions