Delta PG PLUS-25 Provozní pokyny stáhnout pdf (Strana 50)

External Wiring

4 Wire Zone Valve

Fig. 33: Multiple Zone Field Wiring Using Zone Valves

3 Wire Zone Valve

*Use isolation relay on 3-wire

zone valve with non-isolated

end switch. Transformer and

the PERFORMANCE PLUS

control can burn out if isolation

relay is not used.

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Delta PG PLUS-25 Provozní pokyny Strana 50