UF-H
In systems that require a common set back time, timed set back can be achieved using an UF-H timer interface card and a standard voltage free timeswitch. In systems where different times are required in selected zones a two channel timer with voltage free contacts must be used. If a two channel timer is used channel one is assigned to zones 1, 3 & 5, (plus 7 if pump control has not been assigned to it). Channel two is assigned to zones 2, 4 & 6, (plus 8 if boiler control has not been assigned to it)
The UH-F timer interface card is supplied as an accessory and is mounted inside the FH-BU front case by the installer.
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