TH450 NON-PROGRAMMABLE THERMOSTAT
369-2659EF—05
6. POWER OUTAGE
During a power outage, LP (Low Power) appears for the first
minute. Then the screen becomes blank. The settings are
stored in memory. After initial installation, product must be
connected to power for a minimum of two hours to enable
the power outage feature. However, if the power failure
exceeds 4 hours, the thermostat’s clock must be re-adjusted
and, if you are using the automatic Daylight Savings Time
changeover function, it must be re-enabled. When power
returns, the thermostat will return to the mode of operation
active prior to the power failure.
7. TROUBLESHOOTING
8. SPECIFICATIONS
Power supply:
120/208/240 VAC, 60 Hz
Minimum load:
1.25 A / 150 W @ 120 VAC, 60 Hz
1.25 A / 260 W @ 208 VAC, 60 Hz
1.25 A / 300 W @ 240 VAC, 60 Hz
Maximum load:
16.7 A / 2000 W @ 120 VAC, 60 Hz
16.7 A / 3465 W @ 208 VAC, 60 Hz
16.7 A / 4000 W @ 240 VAC, 60 Hz
Setpoint range:
5 °C to 30 °C (41 °F to 86 °F)
Display range:
0 °C to 60 °C (32 °F to 140 °F)
Resolution:
± 0.5 °C (± 1 °F)
Storage:
-20 °C to 50 °C (-4 °F to 120 °F)
ICES-003 Class B Notice - Avis NMB-3, Classe B
This Class B digital apparatus complies with Canadian ICES-
003.
CAUTION: ELECTRONIC WASTE NOTICE
The product should not be disposed of with other household
waste. Check for the nearest authorized collection centers or
authorized recyclers. The correct disposal of end-of-life
equipment will help prevent negative consequences for the
environment and human health.
WARRANTY
Resideo warrants this product, excluding battery, to be free
from defects in workmanship or materials, under normal use
and service, for a period of three (3) years from the date of
first purchase by the original purchaser. If at any time during
the warranty period the product is determined to be defective
due to workmanship or materials, Resideo shall repair or
replace it (at Resideo’s option).
If the product is defective,
(i) return it, with a bill of sale or other dated proof of purchase,
to the place from which you purchased it; or
(ii) call Resideo Customer Care at 1-800-831-2823.
Customer Care will make the determination whether the
product should be returned to the following address: Resideo
Return Goods, 1985 Douglas Dr. N., Golden Valley, MN 55422,
or whether a replacement product can be sent to you.
This warranty does not cover removal or reinstallation costs.
This warranty shall not apply if it is shown by Resideo that
the defect was caused by damage which occurred while the
product was in the possession of a consumer.
Resideo’s sole responsibility shall be to repair or replace the
product within the terms stated above. RESIDEO SHALL NOT
BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND,
INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY
BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY
OTHER FAILURE OF THIS PRODUCT.
Some states do not allow the exclusion or limitation of
incidental or consequential damages, so this limitation may
not apply to you.
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY
RESIDEO MAKES ON THIS PRODUCT. THE DURATION OF ANY
IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, IS HEREBY LIMITED TO THE THREE YEAR
DURATION OF THIS WARRANTY. Some states do not allow
limitations on how long an implied warranty lasts, so the
above limitation may not apply to you.
This warranty gives you specific legal rights, and you may
have other rights which vary from state to state. If you have
any questions concerning this warranty, please write Resideo
Customer Care, 1985 Douglas Dr, Golden Valley, MN 55422 or
call 1-800-831-2823.
PROBLEM SOLUTIONS
Thermostat’s
housing is hot. This is normal. When the thermostat is
running at full capacity, its housing
can reach 40 °C (104 °F).
LO is displayed. The measured temperature is below
the display range. Heating is activated.
HI is displayed. The measured temperature is above
the display range.
Wrong temperature
is displayed. Rectify if any of the following
conditions applies:
•The thermostat is exposed to air
draft.
•The sticker on the thermostat’s
screen has not been removed.
•The thermostat is located near or
above a heat source such as a light
dimmer.
Display disappears
and reappears after
a few minutes.
The thermal protection device on the
heater has temporarily opened. This
can happen if the heater is obstructed
by furniture or curtain and has
overheated, or if the heater’s thermal
protection device is too sensitive.
E1 or E2 is
displayed The thermostat performance is
reduced due to a sensor error. Please
contact technical support for more
information.
Energy Verified
Only