configured. All configuration parameters are taken from the
transmitter with Unit ID Number 1. Transmitters with Unit
ID Numbers 2, 3, and 4 cannot be programmed or config-
ured (except for set points).
When more than one transmitter is used, the receiver will
only accept commands from the transmitter that was last used
(button pressed). All other set points and modes from other
transmitters are ignored. If the transmitter with Unit ID Num-
ber 1 has a schedule and is in Program On mode, the re-
ceiver will revert back to following the programmed sched-
ule when a time period change occurs, even if the trans-
mitter with Unit ID number 1 is not the current commanding
transmitter.
Dry Contact Switch/External Control — Adry con-
tact switch is provided to allow an external device to force
the thermostat into Unoccupied mode. This occurs at the re-
ceiver and is not shown on the transmitter. The external de-
vice is wired to contacts CK1 and CK2. See Fig. 5.
CK1
CK2
CK1
CK2
CK1
CK2
EXTERNAL
DEVICE
RECEIVER RECEIVER RECEIVER
NOTE: Do not cross wiring.
Fig. 5 — Dry Contact Switch Wiring
6
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