Honeywell CT1503 - Manual (Page 13)

SET HEAT ANTICIPATOR LEVER
NOTE: Not applicable on CT1503 millivolt model,
□ The thermostat’s adjustable heat anticipator
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 is 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 control 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:
• Connect 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 taking reading.
Record the reading here | |.
OIL BURNER CONTROL
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11 69-0273—9