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69-1119
terminals on the Chronotherm® Thermostat
wiring wallplate. Do not allow them to touch, or
you may damage your transformer. Disconnect
the wires and wrap them separately, using
electrical tape. Do not wrap them together.
Place the wires where they will not interfere
with the operation of the new thermostat.
Record the colors and terminal designation
labels of the remaining wires.
Six or more wires?
If there are six or more wires (excluding clock
wires attached to terminals), you most likely
have a variation of a heat pump or multistage
system. The thermostat is not compatible with
such systems so return the product to the
place of purchase. If you would like information
about which programmable thermostats will
work with your system, call Duracraft Con-
sumer Services at 1-800-554-4558.
Three thermostat wires?
If you have three wires for heating only and
can operate the fan using the fan ON switch,
this thermostat will work with your system.
However, some hot water (zoned) heating
systems have three thermostat wires. The
thermostat will not work without installing an
isolating relay on these systems. For details,
call Duracraft Consumer Servicies at
1-800-554-4558.
Step 3. Install the Batteries
IMPORTANT
Batteries must be installed for program-
ming and operation of the thermostat
and heating/cooling system.
