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Alpha E-Tec S 20 and 30 - Installation
Fig. 4.19
4.12 OPTIONAL ALPHA SYSTEM DIVERTER KIT
The Alpha Diverter Kit operates as a hot water priority valve. If the heating is on and there is a hot water demand the valve
will divert the primary hot water to the cylinder until the cylinder sensor is satisfied. The heating will be held off during this
period so it is recommended that a high recovery cylinder is used. The kit comprises of a diverter valve and cylinder sensor.
Installing the kit is simplified due to the direct wiring of the diverter valve and cylinder sensor to the boiler terminal block and
the option of an RF or direct wired Climatic Programmable Boiler Energy Manager should be used to control hot water and
heating (see Section 8 - Wiring Diagram).
When using this kit the hot water cylinder temperature and heating temperature can then be independantly set using the two
thermostat knobs on the boiler control panel or the control dials on the Alpha Climatic control unit if fitted.
Diverter kit ..................................... Part number 6.5500048
Climatic Control Unit Wired ........... Part number 3.022144
Climatic Control Unit RF ................ Part number 3.022143
Remove the Cylinder Resistor R8 when connectiong the Cylinder Sensor to terminals 38 and 48. SeeFig. 2.3.
Check that Parameter P3 is set as Diverter Valve option (P3 = 5),. See Section 5.3
E-Tec S
Boiler
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