Supplied By www.heating spares.co Tel. 0161 620 6677
28
Unhook and lift the connection casing; connect
the end of the 24V harness to the 24V connection
on the main PCB (A1, see fig. 38).
Unhook and remove the cover of connection
casing. Passing under connection casing insert
the four terminal strip (M4) and the 230V wiring
harness in the opening. Position the four terminal
strip in the own seat (see photos 36 & 37) and
connect the 230 wiring harness as indicated in the
figs 39 & 40.
The programmer can be used with a typical ‘S’ –
Plan or ‘Y’ – Plan controls arrangement as detailed
in figures 39 & 40.
IMPORTANT
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The boiler must always be supplied with a
permanent 230V electrical supply.
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Always remove the link between TA & TA on the
appliance 230V terminal strip whenever
additional controls are connected to the
appliance.
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Do not connect any controls or auxiliary
equipment to the 24V terminal strip, other than
that approved/supplied by Vokera Ltd.
Fig. 37
CONNECTIONS
CASING
PROGRAMMER
TERMINAL STRIPS
Fig. 36