Honeywell CT1501 Installation Manual page 13

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SET HEAT ANTICIPATOR LEVER
NOTE: Not applicable on CT1503 millivolt model.
The thermostat's adjustable heat anticipator 0
must be correctly set to accurately control
the on-time length of the system. An incorrect
setting can result in room temperature swings or
burn out the anticipator and void the thermostat
warranty.
Make sure you have the current draw (antici-
pator setting) for your system. This i s the number
you wrote in the box
in
Step 3
If
you were unable
to find the current draw for Step 3, this information
can be found printed on the primary control at the
furnace or boiler. The primary control is usually a
gas valve a relay or burner controi box, Aquastat
controller or zone valve with the thermostat wires
connected to it These controls are usually located
behind the furnace cover See next illustration
If current rating is still unavailable, proceed as
follows:
Coqnect the probes of an ac ammeter (0 to
2.0
A, for example) between R (or RH) and
W terminals on the wallplate
or
subbase.
Let the system operate through the ammeter
for at least one minute before taklng reading.
Record the reading here