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RTH221 PROGRAMMABLE THERMOSTAT

© 2020 Resideo Technologies, Inc. All rights reserved.
The Honeywell Home trademark is used under license from Honeywell International, Inc. This product is manufactured by Resideo Technologies, Inc. and its affiliates.

www.resideo.com

Resideo Technologies, Inc.
1985 Douglas Drive North, Golden Valley, MN 55422
1-800-468-1502
69-2062EFS—03     M.S.  Rev. 09-21 | Printed in United States

5. TECHNICAL DATA

Power Supply

2 AAA batteries

Maximum Load

1 A @ 24 VAC per output

Temperature Ranges

Heat: 40 °F to 90 °F (4.5 °C to 32 °C)
Cool: 50 °F to 99 °F (10 °C to 37 °C)

Operating Ambient Temperature

32 °F to 122 °F (0 °C to 50 °C)

Shipping Temperature

-40 °F to 130 °F (-40 °C to 55 °C)

Operating Relative Humidity

5% to 90% (non-condensing)

Physical Dimensions (H x W x D)

4.7” x 2.9” x 1.1” (120 mm x 74 mm x 28 mm)

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 one (1) year 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 1-800-468-1502. 
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 
ONE 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 1-800-468-1502.

CUSTOMER ASSISTANCE

If you have any questions regarding your thermostat, 
please go to 

http://honeywellhome.com

 or call 

Customer Care toll-free at 

1-800-468-1502

.

Summary of Contents for RTH221

Page 1: ...nce to display the setpoint temperature Press either button more than once to change the setpoint The ambient measured temperature is normally displayed To view the setpoint temperature press either o...

Page 2: ...button more than once Press the Run button if you wish to cancel the temporary setting before the beginning of the next period 2 5 Permanent override of schedule To permanently ignore the programmed s...

Page 3: ...ld 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 reinst...

Page 4: ...r le mode de fonctionnement du ventilateur Auto Le ventilateur fonctionne uniquement lorsque le chauffage ou la climatisation est en marche r glage habituel On Le ventilateur fonctionne sans arr t 1 6...

Page 5: ...mporaire l horaire Pour ignorer temporairement l horaire appuyer sur le bouton ou jusqu ce que la temp rature d sir e soit affich e La mention Temporary s affichera et la p riode en cours clignotera p...

Page 6: ...468 1502 Le service la client le d terminera si le produit doit tre retourn l adresse suivante Resideo Return Goods 1985 Douglas Dr N Golden Valley MN 55422 ou si un produit de remplacement peut vous...

Page 7: ...st n en marcha ajuste m s com n On el ventilador funciona continuamente 1 6 Ajuste de la temperatura Presionar una vez los botones o para visualizar la temperatura del punto de ajuste Presionar cualqu...

Page 8: ...mporalmente el horario presionar el bot n o hasta que la temperatura deseada aparezca en pantalla Aparecer la palabra Temporary y la pantalla de per odo parpadear para indicar que el per odo en curso...

Page 9: ...ideo lo reparar o reemplazar a elecci n de Resideo Si el producto est defectuoso i devu lvalo con una factura de venta o cualquier otro comprobante de compra con fecha al lugar donde lo compr o ii lla...

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