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Wiring diagrams
C-Plan
Note 1: This is a Class II device (i.e., double insulated). A
parking terminal is available for earth wiring if required.
Note 2: In "Y," "S" and "W" wiring plans, connections
are shown only for basic boilers. For connections to
pump over-run boilers, consult boiler manufacturer's
instructions or contact Honeywell for assistance.
W-Plan (wiring shown as a hot-water priority system)
Note 3: Gravity circulation hot-water systems should be
fitted with a suitable hot-water control valve as shown in
Plan C above. If this valve is not installed, configure this
device as a Mini-Programmer.
Note 4: For convenience, wiring is shown with
connections made to a 10-way wiring strip in a junction
box.
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