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Check Out Thermostat
! Turn on the power to the heating system.
! Turn setting knob all the way clockwise
Electric heater should begin operation.
! Turn knob all the way counterclockwise
Electric heater should shut off.
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 up to
raise the temperature, or down to lower the temperature. Move knob only a degree each time.
Troubleshooting
Your Honeywell thermostat requires little or no attention. Most problems can generally be traced to
the following:
Symptom
No heat.
Heater never turns off.
Thermostat setting and
thermometer reading
disagree.
1
CT410B
L2
L1
3
2
4
T2
T1
3
TO
ELECTRIC
HEATER
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
1
PROTECTION AS REQUIRED.
2
BREAKS ON POSITIVE OFF.
3
EXPOSED UNUSED LEADWIRES TO BE PROPERLY INSULATED.
4
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.
Fig. 1. Thermostat wiring diagram.
Checkout
Make sure power is on at main
service panel. Turn the
temperature setting knob fully
clockwise
.
Improper connections to
thermostat.
Other.
Turn temperature setting knob
fully counterclockwise
Thermostat affected by drafts or
radiant heat.
L1 (HOT)
1
CT410A
L1
4
T1
ELECTRIC
HEATER
; listen for clicking sound as switch makes contact.
; listen for clicking sound as switch breaks contact.
Heater should start to warm up within two minutes. If not,
contact qualified electrician to check thermostat and
heater.
With power to circuit OFF, tighten all wiring connections.
Repair any frayed or broken wires.
Contact a qualified electrician for assistance.
Heater should start to cool within minutes. If not, turn off
power at the main service panel, and contact qualified
.
electrician.
Contact electrician to change the location. The thermostat
should be about 5 ft (1.5m) above the floor and on an
inside wall.
3
L2
M23412
Action
69-1963EFS
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