Lux Products 3M-22 User Manual

Install guide 3M-22

Caution

• Your thermostat is a precise instrument, handle it with care.

• Turn off electricity to the appliance before installing or servicing thermostat or any part of the system.

• Do not turn electricity back on until work is completed.

• Do not short (jumper) across electric terminals at control on furnace or air conditioner to test the system. This will damage the thermostat and void your warranty.

• All wiring must conform to local codes and ordinances.

• This thermostat is designed for use with 24 volt AC and millivolt systems. The thermostat should be limited to a maximum of 1.0 amps; higher amperage may cause damage to the thermostat.

ENGLISH

Install guide 3M-22

To avoid electrical shock and to prevent damage to the furnace, air conditioner,

Caution

and thermostat, disconnect the power supply before beginning work. This can be done at the circuit breaker, or at the appliance.

Tools

You will need a small Phillips screwdriver and possibly a drill with 3/16-in. (4.8mm) bit for wall mounting.

Location

Replacement installations New installations -

follow the guidelines listed below.

mount the new thermostat in place of the old one.

• Locate the thermostat on an inside wall, about 5 ft. (1.5m) above the floor, and in a room that is used often.

• Do not install it where there are unusual heating conditions, such as: in direct sunlight; near a lamp, radio, television, radiator register, or fireplace; near hot water pipes in a wall; near a stove on the other side of a wall.

• Do not locate in unusual cooling conditions, such as: on a wall separating an unheated room; or in a draft from a stairwell, door, or window.

• Do not locate in a damp area. This can lead to corrosion that will shorten thermostat

Good

life.

• Do not locate where air circulation is poor, such as: in a corner or an alcove; or behind an open door.

• Do not install the unit until all construction

5ft.

(1.5m)

work and painting has been completed.

• This thermostat does not require leveling.

Remove old unit

• Switch electricity to the furnace and

IMPORTANT : LABEL ALL WIRES BEFORE DISCONNECTING THEM!

air conditioner OFF; then proceed with the following steps.

• Remove cover from old thermostat. Most are snap-on types and simply pull off. Some have locking screws on the side or front. These must be loosened. Note the letters printed near the terminals. Attach labels (enclosed) to each wire for identification.

Read instructions carefully before removing any wiring from existing thermostat.

Caution

Wires must be labeled before they are removed. THERE IS NO STANDARD COLOR CODE. When removing wires from their terminals, ignore the color of

the wires since these may not comply with any standard.

• Label the wires one at a time. You must label all the wires before you proceed. With all wires labeled, remove them from the old unit.

• Make sure the wires do not fall back inside the wall. You can wind them around a pencil to keep them from falling.

• Loosen all screws on the old thermostat and remove it from the wall.

• Fill wall opening with non-combustible insulation to prevent drafts.

Prepare wires

• You will need at least 2.6" of wire for each of your connections to the 3M-22.

• If you do not have enough wire, splice additional wire to allow enough slack.

• Fan out wires below the hole as shown.

2.6"

Trim

Before you Connect Wires

Please follow these guidelines for safe and secure wire connections.

• Easy Terminals do not require stripping the wire.

• Clip any bare wire from previous installation.

• Take care not to damage the labels for each wire in handling.

• Fan wires out as illustrated with 3M-22 below the wall opening.

• Wires will dress behind the 3M-22 and up over the terminal area.

• Use the Step-By-Step diagram as your guide.

• Do not bunch wires behind 3M-22. Feed slack back into the wall opening.

Caution

Do not allow wires to touch each other or parts on thermostat.

• Insert the wire in the terminal and tighten the screw securely.

Jumpers

• You will need to set Configuration Jumpers per the Step-By-Step

diagram. A needle-nose plier may be required to modify jumper positions

What wires do you have?

Determine which step-by-step wiring diagram below you should use. Make sure your wires are labeled. This may require you to find the 'other end' connection for each wire on your heating or air conditioning equipment and read the label there. If you have a wire marked "C" it is optional. If you do connect it, the thermostat will draw power from the C wire. This extends battery life.

Find the set-up diagram for your system

C W RH

2 Wire Heat

Go To Page 15

W RH A

3 Wire Zoned Hot Water

Go To PAGE 22

C B or O Y RH G

4 Wire Heat Pump w/o Aux Heat

• Find the referenece page with your wiring diagram and jumper set-up information. Remember, the C wire is optional.

C W RH G

3 Wire Heat

C W Y RH G

C B or O W2 Y RH G

5 Wire Heat Pump w/ Aux Heat

Go To Page 20

4 Wire Heat/Cool

C W Y RH RC G

5 Wire Heat/Cool

Go To Page 18Go To Page 17Go To Page 16

C W2 W Y Y2 RH G

2 stage Cool 2 stage Heat

Go To Page 21Go To Page 19

•

If you combination of wires is not above you can use the wiring table on pages 24-25 to determine your connections, or call our USA support line at 1-888-607-5824 for help.

+ 9 hidden pages