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26. For isolation purposes both the orange zone valve wire and the live signal from the timer
to close the domestic hot water port of the zone valve are connected to "dead" points on the
terminal strip.
Page 24
8.10 Domestic Hot Water Wiring
The boiler can be wired to operate when there is a demand for replenishment of an indirect
domestic hot water storage cylinder.
1. If not already done, slacken the facia securing screws sufficiently to release the outercase
panel securing tabs. Lift and remove the panel.
2. Remove the screws securing the facia panel and hinge it down.
3. Slacken the cable clamp on the R.H. side of the boiler chassis. Insert the cable from the
cylinder thermostat through the cable clamp.
4. Undo the screws securing the DHW relay PCB cover. Remove the cover. Slacken the
screws in the terminal block on the PCB and connect the switched live and neutral (
Fig. 29
).
IMPORTANT
: If the DHW Relay PCB is not wired as shown, the boiler will not
operate when the selector switch is in the hot water position (
).
Содержание 35/80 IE
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