LUX T20-1141SA Installation and Operating Instructions

LUX T20-1141SA Installation Manual

LUX T20-1141SA Spesification

  • LECTRICAL RATING 24 Vac (30 Vac Maximum)
  • SWITCH ACTION Sealed Mercury Switch
  • TEMPERATURE RANGE 50° F to 90° F


For accurate temperature control and comfort, correct location is very important. On new installations, the guidelines listed below should be followed as closely as possible. When replacing an old thermostat, install the new one in the same location unless these conditions suggest otherwise.

  1. Locate the thermostat on an inside wall about five feet above the floor, where it is easy to install and adjust. It should be in a room that is used often, such as a family room.
  2. Do not install it where there are unusual heating conditions, such as direct sunlight, close to a lamp, radio, television, radiator, register, near a fireplace, or other heat producing appliance. Also, check for hot water pipes within the wall, or a stove on the other side of the wall.
  3. Do not locate in unusual cooling conditions, such as on an outside wall, or one separating an unheated room, or in drafts from stairwells, doors, or windows.
  4. Do not locate in a damp or humid area. This can shorten thermostat life due to corrosion.
  5. Do not locate where air circulation is poor, such as in a corner, alcove, or behind an open door.
  6. Do not install until all construction work and painting have been completed.


Wirestripper or knife, drill with 3/16" bit, screwdriver, level and a pencil.


  1. Place new decorative wall plate (if supplied), Figure 3, over wall opening. Decorative wall plate can optionally be left off.
  2. Remove Front Cover of new thermostat by inserting a finger in the side of the thermostat and gently prying away each corner. Place Base, Figure 2, on wall plate over wall opening. Mark wall with pencil at mounting holes as shown in Figure 2. Now lay wall plate and base to the side.
  3. Drill two holes with 3M' bit, 1 " deep.
  4. Insert plastic screw anchors into drilled holes, flush with wall surface.
  5. Bring wires through large hole in decorative wall plate and through Hole For Wfres in Base.
  6. Fasten Base loosely to wall using two mounting screws. Place a level against the bottom of the Base, adjust until it is level and then tighten mounting screws to secure the Base.
  7. Attach wires to terminal screws shown in Figure 2. (Either wire to either terminal) Push excess wire back into wall opening.
  8. Find anticipator setting on old thermostat. Setting on new thermostat should be the same. Do this by carefully sliding the long pointer on the anticipator over the desired number. If old anticipator setting cannot be determined, look on gas control on furnace, or set it at .6. During heating season, furnace should operate about five times an hour. If adjustments are necessary, move heat anticipator pointer slightly and recheck. NOTE: Set pointer to 1.2 for millivolt systems.
  9. Attach front cover, Figure 1, to base.
  10. Turn electricity and gas back on and set pointer on top of thermostat to desired temperature. 

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Title : LUX T20-1141SA Installation and Operation Manual
Format : PDF
Pages : 2 Pages
Language : English
File Size : 1 MB

LUX T20-1141SA Installation Manual 

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