Honeywell T410B, T410A User Manual
T410A,B
Line Voltage
Electric Heat Thermostats
INSTALLATION INSTRUCTIONS
T410A provides single-line break.
T410B provides double-line break.
Temperature Range: 40°F to 80°F (4°C to 27°C)
Electrical Ratings: 60 Hz noninductive
22A at 120-240 Vac; 19A at 277 Vac
Do-It-Yourself models
Your Honeywell Thermostat
Your new Honeywell T410 Electric Heating Thermostat
provides line voltage control of a radiant cable, electric
baseboard, and resistive-rated fan forced heaters within
the ratings listed above.
WARNING
This thermostat is a line voltage control (120 Volts to
240 Volts.) Do not install it if you are not completely
familiar with house wiring. If handled improperly,
there can be risk of a 120 Volt to 240 Volt electric
shock hazard, which may cause serious injury or
death.
MERCURY NOTICE
If this control is replacing a control that contains
mercury in a sealed tube, do not place you old
control in the trash. Dispose of properly.
Contact you local waste management authority for
instruction regarding recycling and the proper
disposal of a old control.
1 PREPARATION
Proper installation of your Honeywell thermostat will
occur if you follow these instructions STEP-BYSTEP. It is recommended that as you read, understand
and complete each step, you check ✓ it off with pencil or
pen.
Check thermostat suitability for your home’s system
by reviewing the ratings listed above.
Make certain that your heating system is working,
especially if it has been inoperative for a length of
time. If the system does not work, contact your local
electrician for assistance.
Carefully unpack your new thermostat. To avoid
damage to the sensing element, do NOT remove
the thermostat cover until wiring has been completed.
Save packages of screws, instructions, receipt and
proof-of-purchase.
2 REMOVE OLD THERMOSTAT
WARNING
Begin by turning off power to the heating circuit at
the main service panel.
Remove cover of old thermostat—cover normally
snaps off when pulled firmly from the bottom. If it
resists, check for a screw that locks the cover.
Loosen screws holding thermostat base to outlet box
and lift away.
Disconnect wires from old thermostat. As you
disconnect each wire, tape the end and label it with
the letter of the terminal designation to make reconnection
to new thermostat easier.
Check the old insulation for cracks, nicks or fraying,
and apply high quality plastic tape where necessary
for adequate insulation.
Retain the old thermostat for reference purposes
and until your new thermostat is functioning
smoothly.
®U.S. Registered Trademark
Copyright © 2002 Honeywell • • All Rights Reserved
X-XX UL
69-1562-1
T410A,B LINE VOLTAGE ELECTRIC HEAT THERMOSTATS
3 WIRE AND MOUNT NEW THERMOSTAT
Remove thermostat cover by grasping the top and
bottom ends with fingers, and pulling outward.
Connect wires to the thermostat as shown in the
applicable wiring diagram. Push the wires into the
outlet box, and insert the thermostat into the box for
mounting by pushing against top and bottom of the
thermostat base.
IMPORTANT:
IMPORTANT:
damage knob or sensing element, and change
calibration.
3
3
1
2
3
4
Do not press on setting knob.
Secure the thermostat to the box with the two captive
mounting screws provided.
Replace thermostat cover.
Set knob to desired room temperature.
Rough handling or strong pressure can
L1
1
L2 L1 L1
2
4
T2 T1
TO
ELECTRIC
HEATER
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
BREAKS ON POSITIVE OFF.
EXPOSED UNUSED LEADWIRES TO BE PROPERLY INSULATED.
THERMALLY ACTIVATED—BREAKS ON TEMPERATURE
RISE. MAKES ON TEMPERATURE FALL.
CAUTION:
SPECIAL SERVICE CO/ALR SOLDERLESS CONNECTORS MUST
BE USED WHEN CONNECTING WITH ALUMINUM CONDUCTORS;
OTHERWISE, A FIRE HAZARD CAN RESULT.
(HOT) L2
T410AT410B
1
4
T1
ELECTRIC
HEATER
M19099
4 CHECK OUT THERMOSTAT
Turn on the power to the heating system.
Turn setting knob all the way clockwise ; listen
for clicking sound as switch makes contact. Electric
heater should begin operation.
Turn knob all the way counterclockwise ; listen
for clicking sound as switch breaks contact. Electric
heater should shut off.
5 SETTING THERMOSTAT
Begin with setting knob at 70°F (20°C) on the scale.
If this setting is not satisfactory after at least two
hours of operation, turn setting knob upscale to
raise the temperature, or downscale to lower the temperature. Move knob only a degree each time.
69-1562–1
2
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