Thermostat
This manual covers the following models: Horizontal Mount: T8034N • Vertical Mount: T834N/T834L
Check package contents:
Before you begin, make sure you have:
Must be installed by a trained, experienced technician
Read these instructions carefully. Failure to follow these instructions can damage the product or cause a hazardous condition.
CAUTION: ELECTRICAL HAZARD
Can cause electrical shock or equipment damage. Disconnect power before beginning installation.
MERCURY NOTICE
If this product is replacing a control that contains mercury in a sealed tube, do not place the old control in the trash. Contact your local waste management authority for instructions regarding recycling and proper disposal.
System Types
System Settings
Fan Settings
Temperature Range
Operating Ambient Temperature
Operating Relative Humidity
Dimensions (vertical model)
Dimensions (horizontal model)
Electrical Ratings
Terminal Voltage (50/60Hz) Running Current
NOTES
R & Rc Terminals
In a single-transformer system, leave a metal jumper in place between R & Rc. Remove the metal jumper if two transformer systems.
Heat pump systems
If wiring to a heat pump, use a small piece of wire (not supplied) to connect terminals W and Y.
Wire Specifications
Use an 18-gauge thermostat wire. Shielded a wire is not required.
F: For gas or oil heating systems, leave the fan operation switch in this factory-set position (for systems that control the fan in a call for heat.)
E: Change the switch to this setting for a heat pump or electric heat system. (This setting is for systems that allow the thermostat to control the fan in a call for heat if a fan wire is connected to the G terminal.)
Move the adjustment arrow to the proper setting for your system (see table below).
Your system Setting
Thermostat mounting
Align the slots on the cover with tabs on the sides of the base, then push gently until the cover snaps into place.
Fan switch
System switch
CAUTION: EQUIPMENT DAMAGE HAZARD.
Do not operate the cooling system when the outdoor temperature is below 50°F (10°C).
Resideo warrants this product to be free from defects in workmanship or materials, under normal use and service, for a period of five (5) 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,
This warranty shall not apply if it is shown by Resideo that the defect was caused by damage that 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. RESIDE 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 FIVE-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.
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