Heatrae Sadia ELECTROMAX SOLAR Installation & Servicing Instructions Manual page 28

3.7.2 ROOM THERMOSTAT INSTALLATION
The Electromax Solar is supplied with a Danfoss TP5000 Programmable Room Thermostat.
This is supplied in the accessory kit supplied with your unit.
Follow the installation instructions provided with the Programmable Room Thermostat for cor-
rect siting and mounting of the unit.
If the radiators are to be fitted with Thermostatic Radiator Valves (TRV's) the room where the
Programmable Room Thermostat is located must not have a TRV fitted in compliance with
Building Regulation Part L.
3.7.3 CENTRAL HEATING DESIGN CONSIDERATIONS
The Electromax Solar boiler must be installed in a sealed primary system. All necessary pri-
mary system controls are supplied fitted to the Electromax Solar.
Conventional radiator based central heating design considerations should be made in selecting
the radiators and circulating pipework sizes. The maximum output from the Electromax Solar
boiler is 9kW, ensure the radiator load does not exceed this.
The Electromax Solar boiler is dedicated to the space heating only, the domestic hot water
uses solar thermal energy and auxillary immersion heaters, so there is no requirement to
allow a hot water loading factor in designing the primary system.
The Electromax Solar central heating expansion vessel fitted has a capacity of 12 litres which
will be suitable for a heating system of up to 107 litres. If in doubt the total primary system
volume must be calculated to determine if additional expansion volume is required.
The Electromax Solar boiler includes an automatic air vent fitted to the central heating circu-
lating pump. Any central heating pipework that rises and falls above this point may require an
addition air vent to relive any trapped air
An automatic bypass valve is fitted to the Electromax Solar to allow thermostatic radiator
valves to be fitted to the system.
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