Lux Products TX9000 Mounting the Unit on the Wall, Removing the OLD Thermostat

REMOVING THE OLD THERMOSTAT

Switch electricity to the furnace and air conditioner OFF; then proceed with the following steps.

1.Remove cover from old thermostat. Most are snap-on types and simply pull off. Some have locking screws on the side. These must be loosened.

2.Note the letters printed near the terminals. Attach labels (enclosed) to each wire for identification. Remove and label wires one at a time. Make sure the wires do not fall back inside the wall.

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

C A U T I O N

Read instructions carefully before removing any wiring from existing thermostat.

Wires must be labeled before

they are removed. When removing wires from their terminals, ignore the color of the wires since these may not comply with the standard.

WIRING DIAGRAMS

HEATING ONLY SYSTEMS				COOLING ONLY SYSTEMS
			RC-RH JUMPER			RC-RH JUMPER
			PROVIDED			PROVIDED
Y O G W B RH RC				Y O G W B RH RC
WIRE	G	W	RH	Y	G	RH
	F	H	RC	C*	F	RC
FAN		4	R	6		R
OPTIONAL			V			V
			5			5

MOUNTING THE UNIT ON THE WALL

1.Strip insulation 3/8 in. (9.5mm) from wire ends and clean off any corrosion.

2.Fill wall opening with non-combustible insulation to prevent drafts from affecting the thermostat.

3. Press up on the button on bottom of thermostat and swing the body away from the base and up to remove the body from the base.

C A U T I O N

Be careful not to drop the body or disturb electronic parts.

Leave the cover closed while the body is being removed from the base.

W3G Y W RH B O RC L

TERMINALS

G
O	R

SCREWBASE

ANCHORS

N O T E

If you are mounting the base to a soft material like plasterboard or if you are using the old mounting holes, the screws may not hold. Drill a 3/16-in. (4.8mm) hole at each screw location, and insert the plastic anchors provided. Then mount the base as described below.

Attaching Wires

4.Hold the base against the wall, with the wires coming through wherever it is convenient for wiring. Route the wires to below the terminal block. Position the base for best appearance (to hide any marks from an old thermostat). An optional wall plate is included for covering old mounting holes. Attach the base to the wall with the two screws provided.

C A U T I O N Do not allow wires to touch each other or parts on thermostat. Wires must be trapped between black spacer and brass terminal. Also, be sure to tighten securely all 7 electrical terminal screws.

HEATING / COOLING SYSTEMS				HEATING / COOLING SYSTEMS
4 -WIRES WITH ONE TRANSFORMER					5 -WIRES WITH TWO TRANSFORMERS
			RC-RH JUMPER				RC-RH JUMPER
			PROVIDED				REMOVED
Y O G W B RH RC				Y O G W B RH RC
Y	G	W	RH	Y	G	W	RH	RC
C*	F	H	RC	C*	F	H	V	R
6		4	R	6		4	5
			V
			5
TYPICAL SINGLE STAGE				WIRING DIAGRAM NOTES
HEAT PUMP WIRING
				(APPLIES TO ALL DRAWINGS)
*CUSTOMER
SUPPLIED			RC-RH JUMPER	• The DASHED lines are optional
JUMPER			PROVIDED
Y O	G	W B	RH RC	depending upon your system type.

				• Verify whether “C”, “X” or “B” wires
				are connected to system common.
				• If “B” and “O” are both present, it is
Y	O G	B	RH	likely that “B” is a system common.
				• If a “B” wire in your system is a
C*	F		RC
			R	common, then connecting it to the
				“B” terminal may cause damage to
			V
				your system.
			5
				• If “Y” and “C” are both present, it is
	USE B or O NOT BOTH			likely that “C” is a system common.

These diagrams below are provided for new installations or

unreferenced wires.

TYPICAL HOOKUP FOR 2 OR 3 WIRE

24 VAC HEATING SYSTEMS (AND MILLIVOLT)

Y O G W B RH RC

	COMMON
OPTIONAL		RH-RC JUMPER
FAN LEAD		PROVIDED

Gas

FAN Valve System

or XFMR

Heater

TYPICAL COOL HOOKUP

24 VAC SYSTEMS

Y O G W B RH RC

					RH-RC JUMPER
			SYSTEM			PROVIDED
			COMMON
	A/C	FAN		System
Comp.				XFMR

2