EMERSON Thermostat Common Wire Kit SA11 Instruction Manual

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2

SA11  

SA11  

THERMOSTAT COMMON WIRE KIT  

INSTALLATION INSTRUCTIONS  

THERMOSTAT COMMON WIRE KIT  

INSTALLATION INSTRUCTIONS  

Step 2 – Wiring Requirements – The Thermostat Common Wire Kit  

wiring has the following requirements:  

IMPORTANT: Read entire instructions before starting the  

thermostat.  

THERMOSTAT  

COMMON WIRE  

ACCESSORY  

1.All system wiring must be in compliance with all applicable  

local and national codes.  

SAFETY CONSIDERATIONS  

2.All wiring should be color coded in conformance with standard  

recommendations.  

Read and follow manufacturer instructions carefully. Follow all local  

electrical codes during installation. All wiring must conform to local  

and national electrical codes. Improper wiring or installation may  

damage sensor.  

THE FOUR EXISTING  

THERMOSTAT WIRES  

3.All wiring should be 18- 22-gage, unshielded wire. The  

Maximum distance between the accessory and the thermostat for  

18-gage wire is 100ft. The maximum distance between the  

Accessory and the thermostat for 22-gage. Wire is 36 ft.  

HVAC  

THERMOSTAT  

Recognize safety information. This is the safety alert symbol. ! When  

the safety alert symbol is present on equipment or in the instruction  

manual, be alert to the potential for personal injury.  

RED  

GREEN  

R

R

THERMOSTAT  

COMMON WIRE KIT  

G

G

GREEN  

BLUE  

BLUE  

YELLOW  

O

O

Diode ‘Y’  

WARNING  

!

YELLOW  

BROWN  

Y

Y

Understand the signal words DANGER, WARNING, and CAUTION. These  

words are used with the safety alert symbol. DANGER identifies the most  

serious hazards which will result in severe personal injury or death.  

WARNING signifies a hazard that could result in personal injury or death.  

CAUTION is used to identify unsafe practices which would result in  

minor personal injury or property damage.  

Before installing Thermostat Common Wire Kit, turn off all  

power to the unit. There may be more than one power  

disconnect. Electrical shock can cause injury or death.  

C

C

Add Jumper  

Step 3 – Accessory Wiring – The Thermostat Common Wire Kit wiring  

has the following requirements:  

GENERAL  

Depending on the application and the usage of the Thermostat Common  

Wire Kit, wiring will vary. Refer to the wiring diagrams in  

Fig. 2-5for more information on wiring the accessory.  

4 existing wires with Thermostat Common Wire Kit to accommodate a  

single stage heat pump. A jumper is required across  

the ‘Y’ and ‘O’ thermostat terminals.  

In applications where additional wiring cannot be run, the Thermostat  

Common Wire Kit can be used to add a wire to the thermostat. The  

accessory is also used to fix a broken wire, to make one thermostat  

work like two, add cooling to a heat only system, or add a common  

wire to a 4-wire system (the green and yellow wires of the Diode ‘Y’  

may not be connected to the R or C terminal of the thermostat).  

• The BLUE wire of the Thermostat Common Wire Kit must  

always be connected to the BLUE wire of the Diode ‘Y’.  

• DO NOT connect the Thermostat Common Wire Kit BLUE, GREEN,  

or YELLOW wires to the R and C terminals of the HVAC unit, damage  

may result.  

CONTENTS  

CONTENTS  

Thermostat Common Wire Kit  

Diode ‘Y’  

QUANTITY  

• The GREEN and YELLOW wires of the Diode ‘Y’ should be regarded  

as extensions of the yellow and green wires of the Thermostat  

Common Wire Kit. For example, if the YELLOW wire on the Diode ‘Y’ is  

connected to terminal W on the thermostat to control heat, the  

YELLOW wire on the Thermostat Common Wire Kit must be connected  

to W on the HVAC unit to control heat. If the GREEN wire on the Diode  

‘Y’ is connected to terminal G on the thermostat to control the fan,  

the GREEN wire on the Thermostat Common Wire Kit must be  

connected to G on the HVAC unit to control the fan.  

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1

4

Wire Nuts  

INSTALLATION  

Step 1 – Location - The Thermostat Common Wire Kit can be mounted  

inside the HVAC unit or inside the control box. The Thermostat Common  

Wire Kit should not be installed in a location where the accessory or  

wiring may be exposed to the elements. Wires running from accessory  

are 9-in. Long. Thermostat Common Wire Kit should be within 9-in. Of  

thermostat connections to HVAC terminal block.  

• Use the wirenuts for wire connections to the Diode ‘Y’.  

• The wiring diagrams are examples of the uses of the Thermostat  

Common Wire Kit. Each example may have more than one method of  

connection that will work. An experienced installer may use different  

combinations to achieve desired results.  

If required, mount the Thermostat Common Wire Kit with 2 screws (not  

provided). See Fig. 1.  

SA11  

MODEL NUMBER  

Tested to Comply  

with FCC Standards  

c

• Do not connect the green and yellow wires of the Diode ‘Y’ to the R  

or C terminal of the thermostat.  

C

F

FOR HOME OR OFFICE USE  

37-7710A  

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General	Details
Name	EMERSON Thermostat Common Wire Kit SA11 Instruction Manual
Make	Emerson
Language	English
Filetype	PDF (Download)
File size	0.12 MB

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• ALL THERMOSTAT INSTRUCTIONS & USER MANUALS
• Emerson

EMERSON Thermostat Common Wire Kit SA11 Instruction Manual Overview

Summary of Contents

• Page 1: Thermostat Common Wire Kit installation instructions provide essential guidelines for wiring requirements. All system wiring must comply with local and national codes. Wiring should be color-coded according to standard recommendations. All wiring must be 18-22 gauge, unshielded wire, with specific distance limitations based on gauge. Recognize safety information and understand the signal words DANGER, WARNING, and CAUTION. Before installation, ensure all power to the unit is turned off to prevent electrical shock. The Thermostat Common Wire Kit can add a wire to the thermostat or fix a broken wire. Specific connections must be made between the Thermostat Common Wire Kit and the Diode ‘Y’. The installation location should protect the accessory and wiring from the elements. Wiring diagrams provide examples of connections, and experienced installers may use different combinations.
• Page 2: Thermostat common wire kit installation instructions. The two existing thermostat wires with Thermostat Common Wire Kit accommodate heating and cooling. A jumper is required across G and Y. Sample wiring diagrams provided. The three existing thermostat wires with Thermostat Common Wire Kit accommodate a thermostat that requires five wires. The four existing thermostat wires with Thermostat Common Wire Kit add cooling to a system that already has heating. Mounting hole specifications included. Diode 'Y' mentioned in wiring instructions. No independent fan switching indicated. Common wire accessory details provided.