Honeywell CT3355A1003 Owner's Manual - Page 19

Warm Air Furnace-Set at the Hot Water

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First, turn in both screws completely, then adjust for system type: • Warm Air Furnace-Set at the Hot Water setting (A-out one turn, B-leave in). • Electric Furnace-Leave at the Warm Air Furnace setting (A-leave in, B-leave in). NOTE: This thermostat does not have a setting for steam/gravity air. Cycles would not be long enough for accurate temperature control. IMPORTANT When using a high efficiency furnace such as a 90% or greater AFUE (Average Fuel Utilization Efficiency) unit, adjust screw A out one turn and leave screw B in. s The thermostat is set to read the temperature in degrees Fahrenheit. If readings are desired in degrees Celsius, adjust screw C out one turn, as shown in illustration. 19 69-1012

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19
69-1012
First, turn in both screws completely, then
adjust for system type:
•
Warm Air Furnace—Set at the Hot Water
setting (A—out one turn, B—leave in).
•
Electric Furnace—Leave at the Warm Air
Furnace setting (A—leave in, B—leave in).
NOTE:
This thermostat does not have a
setting for steam/gravity air. Cycles
would not be long enough for accu-
rate temperature control.
IMPORTANT
When using a high efficiency furnace
such
as a 90% or greater AFUE
(Average Fuel Utilization Efficiency)
unit, adjust screw A out one turn and
leave screw B in.
■
The thermostat is set to read the tempera-
ture in degrees Fahrenheit. If readings are
desired in degrees Celsius, adjust screw C
out one turn, as shown in illustration.